gcc/ChangeLog

   1 2006-05-31  Richard Earnshaw  <richard.earnshaw@arm.com>
   2
   3         PR target/27829
   4         * arm.c (arm_print_operand case 'S'): Validate that the operand is
   5         a shift operand before calling shift_op.  Avoid redundant call of
   6         shift_op.
   7
   8 2006-05-30  Naveen.H.S  <naveenh@kpitcummins.com>
   9             DJ Delorie  <dj@redhat.com>
  10
  11         * config/m32c/m32c.c (m32c_expand_insv): Check that the value
  12         we're inserting is a singlt-bit constant.
  13
  14 2006-05-30  Roger Sayle  <roger@eyesopen.com>
  15
  16         * simplify-rtx.c (simplify_binary_operation_1) <LSHIFTRT>: Cast
  17         width to HOST_WIDE_INT to avoid comparison warnings on some targets.
  18
  19 2006-05-30  Roger Sayle  <roger@eyesopen.com>
  20
  21         PR tree-optimization/23452
  22         * fold-const.c (fold_mult_zconjz): New subroutine of fold_binary,
  23         to optimize z * conj(z) as realpart(z)^2 + imagpart(z)^2.
  24         (fold_binary) <MULT_EXPR>: Call fold_mult_zconjz for integral
  25         complex values and with -ffast-math for FP complex values.
  26
  27 2006-05-30  Kazu Hirata  <kazu@codesourcery.com>
  28
  29         * c-common.h: Remove the prototype for yyparse.
  30         * rtl.h: Remove the prototype for init_loop.
  31
  32 2006-05-30  Andreas Krebbel  <krebbel1@de.ibm.com>
  33
  34         * cse.c (validate_canon_reg, cse_insn): Don't change insns without
  35         calling recog.
  36
  37 2006-05-30  Roger Sayle  <roger@eyesopen.com>
  38
  39         * simplify-rtx.c (simplify_binary_operation): Unfactor the shift
  40         and rotate cases.
  41         <LSHIFTRT>: Optimize (lshiftrt (clz X) C) as (eq X 0) where C is
  42         log2(GET_MODE_BITSIZE(X)) on targets with the appropriate semantics.
  43
  44 2006-05-30  Dirk Mueller  <dmueller@suse.de>
  45
  46         PR c/27273
  47         * c-common.c (convert_and_check): Only track TREE_CONSTANT_OVERFLOW
  48         for CONSTANT_CLASS_P expresisons.
  49
  50 2006-05-30  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
  51
  52         PR c/27718
  53         * c-typeck.c (c_expr_sizeof_type): Handle invalid types.
  54
  55 2006-05-30  Zdenek Dvorak <dvorakz@suse.cz>
  56
  57         PR tree-optimization/27779
  58         * tree-data-ref.c (analyze_siv_subscript_cst_affine): Use
  59         initial_condition instead of CHREC_LEFT.
  60
  61 2006-05-30  Steven Bosscher  <stevenb.gcc@gmail.com>
  62
  63         * config/m32r/m32r.h (DBX_OUTPUT_SOURCE_LINE): Fix type of begin_label.
  64         * config/m32r/initfini.c (__do_global_dtors, __do_global_ctors):
  65         Make prototypes ISO C90.
  66
  67 2006-05-30  Mircea Namolaru  <namolaru@il.ibm.com>
  68             Leehod Baruch    <leehod.baruch@weizmann.ac.il>
  69
  70         * see.c (see_analyze_one_def): Correct check.
  71         (see_get_extension_data): Check if extension is parallel.
  72         (see_get_extension_reg): Likewise.
  73
  74 2006-05-30  Uros Bizjak  <uros@kss-loka.si>
  75
  76         PR target/27790
  77         * config/i386/i386.c (ix86_expand_int_vcond): Force cop0
  78         into register for (code == GTU).
  79
  80 2006-05-29  Roger Sayle  <roger@eyesopen.com>
  81
  82         PR tree-optimization/24964
  83         * simplify-rtx.c (simplify_binary_operation_1): Add function comment.
  84         <MULT>: Minor clean-up.  Don't convert x*-1.0 into -x if we honor
  85         signaling NaNs.  Optimize -x*-x as x*x for all float modes, and
  86         abs(x)*abs(x) as x*x for scalar floating point modes.
  87
  88 2006-05-29  Sebastian Pop  <pop@cri.ensmp.fr>
  89
  90         PR middle-end/27745
  91         * lambda-code.c (perfect_nestify): Don't copy statements
  92         in the inner loop: move them to the inner loop header.
  93
  94 2006-05-29  Diego Novillo  <dnovillo@redhat.com>
  95
  96         PR 26237
  97         * c-tree.texi: Document OpenMP directives and clauses.
  98
  99 2006-05-29  Kazu Hirata  <kazu@codesourcery.com>
 100
 101         * varasm.c (globalize_decl): Fix indentation.
 102
 103 2006-05-29  Diego Novillo  <dnovillo@redhat.com>
 104
 105         PR 26242
 106         * doc/passes.texi: Add documentation for pass_vrp, pass_ipa_pta,
 107         pass_fre, pass_store_ccp, pass_copy_prop,
 108         pass_store_copy_prop, pass_merge_phi, pass_nrv,
 109         pass_return_slot, pass_object_size, pass_lim,
 110         pass_linear_transform, pass_empty_loop, pass_complete_unroll,
 111         pass_loop_prefetch and pass_stdarg.
 112
 113 2005-05-29  Bernd Schmidt  <bernd.schmidt@analog.com>
 114
 115         * config/bfin/bfin.opt (mfdpic): New option.
 116         * config/bfin/t-bfin-elf (EXTRA_PARTS): Add crtbeginS.o and crtendS.o.
 117         (EXTRA_MULTILIB_PARTS): Likewise.
 118         (CRTSTUFF_T_CFLAGS, TARGET_LIBGCC2_CFLAGS): Use -fpic.
 119         (MULTILIB_OPTIONS, MULTILIB_EXCEPTIONS): Build one extra -mfdpic
 120         multilib.
 121         * config/bfin/elf.h (STARTFILE_SPEC): Don't link in crt0.o if -shared.
 122         (CRT_CALL_STATIC_FUNCTION): New.
 123         * config/bfin/uclinux.h (STARTFILE_SPEC): Don't link in crt0.o if
 124         -shared.
 125         (CRT_CALL_STATIC_FUNCTION): New.
 126         * config/bfin/bfin.c (legitimize_pic_address): Now static.  Handle
 127         FD-PIC moves.
 128         (n_pregs_to_save): PIC register doesn't need to be saved with FD-PIC.
 129         (print_operand): Handle UNSPEC_MOVE_FDPIC and UNSPEC_FUNCDESC_GOT17M4.
 130         (initialize_trampoline): Changed to handle FD-PIC code generation.
 131         (expand_move): If TARGET_FDPIC, use emit_pic_move as needed.
 132         (bfin_expand_call): Generate FD-PIC calls if TARGET_FDPIC.
 133         (override_options): Disallow -mid-shared-library -mfdpic combination.
 134         Can't do unaligned ops if FD-PIC.
 135         Turn off flag_pic if trying to generate non-id-shared-library
 136         non-fdpic code, since it's not supported.
 137         (bfin_assemble_integer): New function.
 138         (TARGET_ASM_INTEGER): Define.
 139         * config/bfin/crti.s (__init, __fini): Save P3 on the stack if
 140         __BFIN_FDPIC__.
 141         * config/bfin/crtn.s: Restore them.
 142         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __BFIN_FDPIC__
 143         if TARGET_FDPIC.
 144         (DRIVER_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS,
 145         LINK_GCC_C_SEQUENCE_SPEC, ASM_SPEC, LINK_SPEC): New macros.
 146         (FDPIC_FPTR_REGNO, FDPIC_REGNO, OUR_FDPIC_REG): New macros.
 147         (TRAMPOLINE_SIZE, TRAMPOLINE_TEMPLATE): Adjust for FD-PIC.
 148         (CONDITIONAL_REGISTER_USAGE): If TARGET_FDPIC, FDPIC_REGNO is
 149         call-used.
 150         (enum reg_class, REG_CLASS_CONTENTS, REG_CLASS_NAMES): Add
 151         FDPIC_REGS and FDPIC_FPTR_REGS.
 152         (REG_CLASS_FROM_LETTER): Use 'Z' and 'Y' for them.
 153         * config/bfin/bfin.md (UNSPEC_MOVE_FDPIC, UNSPEC_FUNCDESC_GOT17M4,
 154         UNSPEC_VOLATILE_LOAD_FUNCDESC): New constants.
 155         (load_funcdescsi): New pattern.
 156         (call_symbol_fdpic, sibcall_symbol_fdpic, call_value_symbol_fdpic,
 157         sibcall_value_symbol_fdpic, call_insn_fdpic, sibcall_insn_fdpic,
 158         call_value_insn_fdpic, sibcall_value_insn_fdpic): New patterns.
 159
 160 2006-05-29  Kazu Hirata  <kazu@codesourcery.com>
 161
 162         * gcse.c, rtlanal.c: Remove obsolete comments associated with
 163         loop.c.
 164
 165         * config/bfin/bfin.h (PARM_BOUNDRY, STACK_BOUNDRY): Remove.
 166
 167         * tree-flow.h: Remove the prototype for add_type_alias.
 168         * tree-ssa-alias.c (add_type_alias): Remove.
 169
 170 2006-05-28  Kazu Hirata  <kazu@codesourcery.com>
 171
 172         * cfgcleanup.c, cfgexpand.c, cgraphunit.c, config/arm/arm.c,
 173         config/fr30/fr30.md, config/i386/i386-interix.h,
 174         config/i386/i386.c, config/i386/i386.md, config/sh/superh.h,
 175         config/sh/superh64.h, config/v850/v850.c, df-core.c,
 176         df-problems.c, df.h, except.c, final.c, haifa-sched.c,
 177         lambda-code.c, libgcc2.h, omp-low.c, optabs.c, predict.c,
 178         reload.c, tree-flow.h, tree-outof-ssa.c, tree-ssa-dce.c,
 179         tree-ssa-pre.c, tree-vect-transform.c: Fix comment typos.
 180         Follow spelling conventions.
 181         * doc/invoke.texi, doc/rtl.texi, doc/tm.texi: Fix typos.
 182         Follow spelling conventions.
 183
 184 2006-05-27  Richard Guenther  <rguenther@suse.de>
 185
 186         PR middle-end/27773
 187         * fold-const.c (fold_plusminus_mult_expr): Use fold_convert
 188         to produce a constant of value 1 of generic type.
 189
 190 2006-05-27  Dirk Mueller  <dmueller@suse.de>
 191
 192         * cgraphunit.c (decide_is_function_needed): Fix wrong
 193         PR reference.
 194
 195 2006-05-26  Ulrich Weigand  <uweigand@de.ibm.com>
 196
 197         PR rtl-optimization/27661
 198         * reload.c (find_reloads): When reloading a VOIDmode constant
 199         as address due to an EXTRA_MEMORY_CONSTRAINT or 'o' constraint,
 200         use Pmode as mode of the reload register.
 201
 202 2006-05-26  Eric Botcazou  <ebotcazou@adacore.com>
 203
 204         * doc/invoke.texi (Optimize Options): Document that -funit-at-a-time
 205         is enabled at -O and above.
 206
 207 2006-05-26  Steven Bosscher  <steven@gcc.gnu.org>
 208
 209         PR target/27571
 210         * config/alpha/alpha.c (alpha_does_function_need_gp): Skip jump
 211         table data.
 212
 213 2006-05-25  Mark Mitchell  <mark@codesourcery.com>
 214
 215         PR c++/20103
 216         * gimplify.c (gimplify_decl_expr): Do not call gimple_add_tmp_var
 217         for anonymous variables explicitly declared by front ends.
 218
 219 2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>
 220
 221         * tree-ssa-structalias.h (PTR_IS_REF_ALL): New macro.
 222         (struct alias_info): Add new field ref_all_symbol_mem_tag.
 223         * tree-ssa-alias.c (compute_may_aliases): If the program contains
 224         ref-all pointers, run a finalization pass for them.
 225         (compute_flow_insensitive_aliasing): Skip ref-all pointers.
 226         (finalize_ref_all_pointers): New function.
 227         (is_escape_site): Return ESCAPE_BAD_CAST for conversion from a
 228         regular pointer type to a ref-all pointer type.
 229         (get_tmt_for): Return the special memory tag for ref-all pointers.
 230
 231 2006-05-25  Richard Guenther  <rguenther@suse.de>
 232
 233         PR middle-end/27743
 234         * fold-const.c (fold_binary): Do not look at the stripped
 235         op0 for (a OP c1) OP c2 to a OP (c1+c2) shift optimization.
 236
 237 2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>
 238
 239         * tree-vrp.c (extract_range_from_assert): Set the range to VARYING
 240         for LT and GT if the computed range is effectively empty.
 241
 242 2006-05-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 243
 244         PR target/27627
 245         * pa/pa-modes.def: Use mips_single_format, mips_double_format and
 246         mips_quad_format formats instead of ieee_single_format,
 247         ieee_double_format and ieee_quad_format formats, respectively.
 248
 249 2006-05-24  Zdenek Dvorak <dvorakz@suse.cz>
 250
 251         PR tree-optimization/27639
 252         PR tree-optimization/26719
 253         * tree-vrp.c (adjust_range_with_scev): Use scev_direction and adjust
 254         call to scev_probably_wraps_p.
 255         * tree-ssa-loop-niter.c (compare_trees, convert_step_widening,
 256         used_in_pointer_arithmetic_p, convert_step): Removed.
 257         (nowrap_type_p): New function.
 258         (scev_probably_wraps_p): Rewritten.
 259         * tree-scalar-evolution.c (instantiate_parameters_1): Do not call
 260         chrec_convert if chrec_convert_aggressive might have been used.
 261         * tree-chrec.c (convert_affine_scev, chrec_convert_1,
 262         scev_direction): New functions.
 263         (chrec_convert): Changed to a wrapper over chrec_convert_1.
 264         * tree-ssa-loop-ivopts.c (idx_find_step): Use convert_affine_scev
 265         instead of convert_step.
 266         * tree-flow.h (scev_probably_wraps_p): Declaration changed.
 267         (convert_step): Declaration removed.
 268         (convert_affine_scev, nowrap_type_p, scev_direction): Declare.
 269
 270 2006-05-23  Kenneth Zadeck <zadeck@naturalbridge.com>
 271
 272         * df-core.c: Added to header comments.
 273         * df.h (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info,
 274         df_ur_bb_info, df_urec_bb_info): Added comments.
 275         * df-problems (df_ref_bitmap, ru, rd, lr, ur,
 276         urec, ri problems): Fixed header comments.
 277         (df_ru_transfer_function): Fixed in-out set dyslexia when copying
 278         code from df_rd_transfer_function.
 279
 280 2006-05-23  Richard Sandiford  <richard@codesourcery.com>
 281
 282         * libgcc2.c (LIBGCC2_MAX_UNITS_PER_WORD): New macro.
 283         (LIBGCC2_UNITS_PER_WORD): Use LIBGCC2_MAX_UNITS_PER_WORD rather than
 284         MIN_UNITS_PER_WORD to set the default.  Also use it in the guard.
 285
 286 2006-05-23  Joseph Myers  <joseph@codesourcery.com>
 287
 288         * expr.c (undefined_operand_subword_p): New.
 289         (emit_move_multi_word): Do not generate move from undefined bits
 290         of a paradoxical subreg.
 291
 292 2006-05-23  Richard Sandiford  <richard@codesourcery.com>
 293
 294         PR rtl-optimization/27736
 295         * combine.c (replaced_rhs_value): New variable.
 296         (combine_instructions): Set it.
 297         (distribute_notes): When distributing a note in replaced_rhs_insn,
 298         check whether the value was used in replaced_rhs_value.
 299
 300 2006-05-23  Andrew MacLeod  <amacleod@redhat.com>
 301
 302         PR c++/26757
 303         * tree-ssa-loop-im.c (determine_invariantness_stmt): Use
 304         add_referenced_var instead of add_referenced_tmp_var.
 305         * tree-complex.c (create_one_component_var): Use add_referenced_var.
 306         * tree-ssa-loop-manip.c (create_iv, tree_unroll_loop): Use
 307         add_referenced_var.
 308         * tree-tailcall.c (adjust_accumulator_values, adjust_return_value,
 309         tree_optimize_tail_calls_1): Use add_referenced_var.
 310         * tree-ssa-loop-ivopts.c (create_new_iv): Use add_referenced_var.
 311         * tree-ssa-alias.c (create_memory_tag, create_global_var, create_sft):
 312         Use add_referenced_var.
 313         * tree-if-conv.c (ifc_temp_var): Use add_referenced_var.
 314         * gimplify.c (force_gimple_operand): Use add_referenced_var.
 315         * tree-ssa-phiopt.c (conditional_replacement, abs_replacement):
 316         Use add_referenced_var.
 317         * tree-dfa.c (struct walk_state): Remove.
 318         (find_referenced_vars): Remove walk state and vars_found hash table.
 319         (make_rename_temp): Use add_referenced_var.
 320         (find_vars_r): Pass less parameters to add_referenced_var.
 321         (referenced_var_p): New.  Is var in referenced_var hash table.
 322         (referenced_var_insert): Assert var isn't already in hash table.
 323         (add_referenced_var): Don't need walk_state parameter.  Add var if it
 324         isn't already in the hash table.
 325         (add_referenced_tmp_var): Remove.
 326         (find_new_referenced_vars_1): Use add_referenced_var.
 327         * tree-ssa-pre.c (create_expression_by_pieces,
 328         insert_into_preds_of_block, insert_extra_phis, realify_fake_stores):
 329         Use add_referenced_var.
 330         * tree-vect-patterns.c (vect_pattern_recog_1): Use add_referenced_var.
 331         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
 332         lambda_loopnest_to_gcc_loopnest, perfect_nestify): Use
 333         add_referenced_var.
 334         * tree-vect-transform.c (vect_create_addr_base_for_vector_ref,
 335         vect_create_data_ref_ptr, vect_create_destination_var,
 336         vect_init_vector, vect_build_loop_niters,
 337         vect_generate_tmps_on_preheader, vect_update_ivs_after_vectorizer,
 338         vect_gen_niters_for_prolog_loop, vect_create_cond_for_align_checks):
 339         Use add_referenced_var.
 340         * tree-outof-ssa.c (create_temp): Use add_referenced_var.
 341         * tree-flow.h (add_referenced_tmp_var): Remove prototype
 342         (add_referenced_var): Add prototype.
 343         * tree-ssa-structalias.c (get_constraint_for,
 344         intra_create_variable_infos): Use add_referenced_var.
 345
 346 2006-05-23  Alexandre Oliva  <aoliva@redhat.com>
 347
 348         * simplify-rtx.c (simplify_subreg): Adjust REG_OFFSET for
 349         big-endian paradoxical subregs.
 350         * var-tracking.c (struct micro_operation_def): Document that,
 351         for modify micro operations, insn is the subsequent instruction.
 352         (var_reg_delete_and_set, var_mem_delete_and_set): Split into...
 353         (var_reg_set, var_mem_set): ... new functions.
 354         (add_stores): Record subsequent insn.
 355         (compute_bb_dataflow): Use new functions for MO_USE.
 356         (emit_notes_in_bb): Use new functions for MO_USE.  Emit use
 357         notes after the insn, and modify notes before the insn known
 358         to be the subsequent one.
 359         (vt_initialize): Invert sorting of MO_CLOBBERs and MO_SETs.
 360
 361 2006-05-23  Kazu Hirata  <kazu@codesourcery.com>
 362
 363         PR target/27696
 364         * config/i386/i386.c (ix86_expand_builtin): Use
 365         gen_sse3_monitor64 for TARGET_64BIT.
 366
 367 2006-05-22  Kenneth Zadeck <zadeck@naturalbridge.com>
 368
 369         PR rtl-optimization/26375
 370         PR rtl-optimization/26855
 371         * df-problems (df_ru_bb_local_compute_process_def): Removed update
 372         to gen set.
 373         (df_ru_bb_local_compute): Reversed statements and removed bogus
 374         comment explaining why they should be in wrong order.
 375         (df_ru_dump, df_rd_dump): Enhanced debug info.
 376         * modulo-sched.c (sms_schedule, tree_opt_pass pass_sms): Enhanced
 377         debug info.
 378         * ddg.c (add_deps_for_def): Converted use of reaching defs to
 379         reaching uses and fixed space problem.
 380
 381 2006-05-23  Jan Hubicka  <jh@suse.cz>
 382
 383         * cgraphunit.c (decide_is_function_needed): Also nested functions
 384         and functions declared inline can be optimized out at -O0.
 385
 386 2006-05-22  Gerald Pfeifer  <gerald@pfeifer.com>
 387
 388         * doc/install.texi (Configuration): Remove reference to CrossGCC
 389         FAQ which was hijacked.
 390         (Building): Ditto.
 391
 392 2006-05-22  Kazu Hirata  <kazu@codesourcery.com>
 393
 394         PR target/27266
 395         * config/i386/i386.c (ix86_expand_branch): Jump to simple if
 396         ix86_compare_emitted is non-NULL.
 397
 398 2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 399
 400         PR c++/27451
 401         * stmt.c (expand_asm_operands): Skip asm statement with erroneous
 402         clobbers.
 403
 404 2006-05-22  Richard Sandiford  <richard@codesourcery.com>
 405
 406         PR rtl-optimization/25514
 407         * combine.c (replaced_rhs_insn): New variable.
 408         (combine_instructions): Set replaced_rhs_insn when trying to replace
 409         a SET_SRC with a REG_EQUAL note.
 410         (distribute_notes): Use replaced_rhs_insn when determining the live
 411         range of a REG_DEAD register.
 412
 413 2006-18-05  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
 414             Anatoly Sokolov <aesok@post.ru>
 415
 416         * config/avr/avr.c (avr_mcu_types): Add support for attiny261,
 417         attiny461, attiny861, attiny25, attiny45, attiny85, attiny24,
 418         attiny44, attiny84, at90pwm2, at90pwm3, atmega165p, atmega169p,
 419         atmega164p, atmega324p, atmega644p, atmega644, atmega329,
 420         atmega3290, atmega649, atmega6490, atmega406, atmega640,
 421         atmega1280, atmega1281, at90can32, at90can64, at90usb646,
 422         at90usb647, at90usb1286 and at90usb1287 devices.
 423         * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
 424         * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).
 425
 426 2006-05-22  Richard Sandiford  <richard@codesourcery.com>
 427
 428         * mklibgcc.in (lib2funcs): Remove _floatdidf from initial assignment.
 429
 430 2006-05-22  Richard Guenther  <rguenther@suse.de>
 431
 432         Revert
 433         2006-01-31  Richard Guenther  <rguenther@suse.de>
 434         Paolo Bonzini  <bonzini@gnu.org>
 435
 436         * doc/install.texi (--disable-libgcc-math): Document.
 437
 438 2006-05-22  Richard Guenther  <rguenther@suse.de>
 439
 440         Revert
 441         2006-01-31  Richard Guenther  <rguenther@suse.de>
 442
 443         * doc/invoke.texi (-msselibm): Document.
 444         * target.h (expand_library_builtin): New target hook.
 445         * builtins.c (expand_builtin): Use expand_library_builtin.
 446         (default_expand_library_builtin): New function.
 447         * gcc.c (LINK_GCC_MATH_SPEC): Define.
 448         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
 449         (link_gcc_math_spec): Declare.
 450         (static_specs): Add link_gcc_math_spec.
 451         * expr.h (default_expand_library_builtin): Declare.
 452         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
 453         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
 454         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
 455         * config/i386/i386.opt (msselibm): New target option.
 456         * config/i386/i386.c (ix86_builtin_function_variants): New array.
 457         (ix86_init_sse_abi_builtins): New function.
 458         (ix86_expand_library_builtin): Likewise.
 459         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
 460         (override_options): Handle error conditions wrt -msselibm.
 461         (ix86_builtins): Add function codes for SSE2 ABI builtins.
 462         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
 463         * doc/extend.texi (__builtin_sse2_*): Document new target specific
 464         builtins.
 465
 466 2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 467
 468         PR c/27420
 469         * c-common.c (self_promoting_args_p): Skip erroneous args.
 470
 471         PR c/26818
 472         * c-decl.c (finish_struct): Skip erroneous fields.
 473
 474 2006-05-22  Nick Clifton  <nickc@redhat.com>
 475
 476         * config/cris/cris.opt (march): Remove VarExists attribute.
 477         (max-stackframe=): Likewise.
 478
 479 2006-05-22  Kazu Hirata  <kazu@codesourcery.com>
 480
 481         * doc/rtl.texi: Fix a typo.
 482         * see.c: Fix comment typos.
 483
 484         * tree-ssa-structalias.h (alias_info): Remove num_references.
 485
 486 2006-05-21  Mike Stump  <mrs@apple.com>
 487
 488         * config/darwin-c.c (BAD): Conditionalize on OPT_Wpragmas.
 489         (BAD2): Add.
 490         (darwin_pragma_options): Use BAD instead.
 491         (darwin_pragma_unused): Likewise.
 492         (darwin_pragma_ms_struct): Likewise.
 493
 494 2006-05-21  David Edelsohn  <edelsohn@gnu.org>
 495
 496         * config/rs6000/rs6000.md (floatsitf2): Remove constraints.
 497
 498 2006-05-21  Kazu Hirata  <kazu@codesourcery.com>
 499
 500         PR rtl-optimization/27671
 501         * simplify-rtx.c (simplify_relational_operation_1): Fix
 502         simplifications of (eq/ne (xor x y) y) and
 503         (eq/ne (xor x y) x).
 504
 505         PR tree-optimization/26622.
 506         * fold-const.c (fold_ternary) <COND_EXPR>: Call fold_convert
 507         on arg1.
 508
 509 2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>
 510
 511         * tree-cfg.c: Prune whitespace.
 512         (debug_tree_cfg): Point to correct header containing the
 513         TDF_* defines.
 514
 515 2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>
 516
 517         PR middle-end/25776
 518         * cgraphunit.c (verify_cgraph_node): Typo in error message.
 519
 520 2006-05-20  Andrew Pinski  <pinskia@physics.uc.edu>
 521
 522         PR middle-end/25776
 523         * cgraphunit.c (cgraph_optimize): Don't run ipa passes if error
 524         or sorry count is non zero.
 525
 526 2006-05-20  Andreas Schwab  <schwab@suse.de>
 527
 528         * config/pa/pa-linux.h (STRING_ASM_OP): Prepend and append a tab.
 529
 530 2006-05-19  Daniel Berlin  <dberlin@dberlin.org>
 531             Kenneth Zadeck <zadeck@naturalbridge.com>
 532
 533         PR rtl-optimization/26855
 534
 535         * df-scan.c (mw_reg_pool, mw_link_pool): New allocation pools for
 536         multiword refs.
 537         (df_scan_alloc): Added code to properly handle multiword hard
 538         registers and add all_blocks parameter.
 539         (df_scan_free_internal, df_insn_refs_delete, df_ref_record): Added
 540         code to properly handle multiword hard registers.
 541         (df_rescan_blocks): Added code to remove deleted blocks from
 542         bitmap.
 543         (df_ref_create_structure, df_ref_record): Added code to properly
 544         handle subregs.
 545         (df_ref_record_1): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER
 546         and set DF_REF_PARTIAL.
 547         (df_defs_record): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER.
 548         (df_uses_record): Added DF_REF_PARTIAL for subreg.
 549         (df_scan_add_problem): Added flags parameter.
 550         (df_ref_create_structure): Changed switching structure.
 551         (df_bb_refs_record): Fixed case where duplicate artificial refs
 552         were created.  Changed location of flags.
 553         (df_record_entry_block_defs): Added code to make stack pointer
 554         live in entry block.  Refined cases where frame pointer is needed.
 555         Changed location of flags.
 556         (df_record_exit_block_uses, df_insn_refs_record): Changed location of flags.
 557         (df_set_state): Removed function.
 558         (df_grow_reg_info, df_reg_chain_unlink, df_ref_remove,
 559         df_insn_create_insn_record, df_insn_refs_delete,
 560         df_ref_create_structure): Formatting changes.
 561         * df-core.c (df_mvs_dump, df_set_flags, df_clear_flags,
 562         df_delete_basic_block): New function.
 563         (df_init): Changed location of flags.
 564         (df_add_problem): Added flags parameter and the way flags are
 565         processed.
 566         (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref,
 567         debug_df_chain): Improved debugging output.
 568         (df_insn_debug, df_insn_uid_debug): Added multiword reg support.
 569         (df_refs_chain_dump): Removed df parameter.
 570         (df_iterative_dataflow): Added consistency check.
 571         (df_prune_to_subcfg): Made public.
 572         (df_analyze_problem): Added blocks_to_init parameter and made
 573         public.
 574         (df_ref_record, df_bb_refs_record, df_mark_reg,
 575          df_record_exit_block_uses): Whitespace changes.
 576         (df_dump): Whitespace changes.
 577         * df.h: Some reordering to remove forward references.
 578         (df_ref_flags.DF_REF_MW_HARDREG, DF_REF_PARTIAL,
 579         DF_REF_MUST_CLOBBER, DF_REF_MAY_CLOBBER): New fields.
 580         (df_ref_flags.DF_REF_CLOBBER): Deleted field.
 581         (dataflow.flags): New field.
 582         (df.flag): Deleted field.
 583         (df_alloc_function): Added additional bitmap parameter.
 584         (df_dependent_problem_function): New type.
 585         (df_problem.changeable_flags): New field.
 586         (df_ref_flags.DF_REF_DIES_AFTER_THIS_USE, DF_SCAN_INITIAL,
 587         DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC, df_state): Removed.
 588         (df_mw_hardreg): New struct.
 589         (DF_INSN_UID_MWS): New macro.
 590         (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df
 591         parameter.
 592         (df_add_problem, df_ru_add_problem, df_rd_add_problem,
 593         df_lr_add_problem, df_ur_add_problem, df_urec_add_problem,
 594         df_ri_add_problem, df_scan_add_problem): Added flags parameter.
 595         (df_set_state): Removed function.
 596         (df_set_flags, df_clear_flags, df_delete_basic_block) New functions.
 597         * df-problems.c (df_chain_dump): Removed df parameter.
 598         (df_ru_alloc, df_rd_alloc, df_lr_alloc, df_ur_alloc,
 599         df_urec_alloc, df_chain_alloc, df_ri_alloc): Added all blocks
 600         parameter.
 601         (df_ru_alloc, df_rd_alloc): Now resets all blocks.
 602         (df_rd_bb_local_compute_process_def, df_ur_bb_local_compute,
 603         df_chain_create_bb, df_create_unused_note, df_ri_bb_compute):
 604         Split DF_REF_CLOBBER into DF_REF_MAY_CLOBBER and
 605         DF_REF_MUST_CLOBBER cases.
 606         (df_ru_bb_local_compute_process_def,
 607         df_rd_bb_local_compute_process_def, df_lr_bb_local_compute,
 608         df_lr_bb_local_compute, df_ur_bb_local_compute,
 609         df_chain_create_bb): Made subreg aware.
 610         (df_ru_bb_local_compute, df_rd_bb_local_compute,
 611         df_lr_bb_local_compute, df_lr_bb_local_compute,
 612         df_chain_create_bb): Cleanup to use proper macros.
 613         (df_ur_local_finalize, df_urec_local_finalize): Removed unnecessary
 614         code to fixup bitvectors.
 615         (df_ri_alloc): Cleared lifetime.
 616         (df_ignore_stack_reg, df_kill_notes, df_set_notes_for_mw,
 617         df_create_unused_note): New function.
 618         (df_ri_bb_compute, df_ri_compute): Added code to create/update
 619         REG_DEAD and REG_UNUSED notes as well as register information.
 620         (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_urec_dump,
 621         df_chains_dump): Fixed crash if problem was never run.
 622         (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem,
 623         df_ur_add_problem, df_urec_add_problem, df_chain_add_problem,
 624         df_ri_add_problem): Processes flags in uniform manner.
 625         (df_ru_alloc, df_ru_local_compute, df_ru_confluence_n, df_ru_free,
 626         df_ru_dump, df_rd_local_compute, df_rd_confluence_n, df_rd_free,
 627         df_rd_dump, df_urec_free_bb_info): Formatting changes.
 628         (df_ru_free_bb_info, df_ru_bb_local_compute, df_ru_dump,
 629         df_rd_free_bb_info, df_rd_bb_local_compute_process_def,
 630         df_rd_bb_local_compute, df_rd_dump, df_lr_free_bb_info,
 631         df_lr_bb_local_compute, df_lr_local_compute, df_ur_free_bb_info,
 632         df_ur_dump, df_urec_free_bb_info, df_urec_dump,
 633         df_chain_create_bb, df_ri_bb_compute): Whitespace changes.
 634         * modulo-sched.c (sms_schedule): Added flag parameter to calls.
 635         * see.c (see_initialize_data): Ditto.
 636         * final.c (rest_of_clean_state) Added regstack_completed.
 637         * rtl.h (regstack_completed): Ditto.
 638         * reg-stack.c (regstack_completed): Ditto.
 639
 640 2006-05-19  Mike Stump  <mrs@apple.com>
 641
 642         * c-tree.h (default_conversion): Remove.
 643         * c-common.h (default_conversion): Add.
 644
 645 2006-05-19  Zdenek Dvorak <dvorakz@suse.cz>
 646
 647         * tree-vrp.c (valid_value_p): New function.
 648         (adjust_range_with_scev): Fail if the value of bound is not
 649         simple.
 650
 651 2006-05-19  Richard Sandiford  <richard@codesourcery.com>
 652
 653         * config/mips/linux-unwind.h: Include <asm/unistd.h>
 654         (mips_fallback_frame_state): Use syscall numbers to determine
 655         the appropriate li instruction for the current ABI.  Only use
 656         __NR_sigreturn for o32.
 657
 658 2006-05-19  Nicolas Setton  <setton@adacore.com>
 659
 660         * langhooks.h (struct lang_hooks): Add dwarf_name language hook.
 661         * langhooks.c (lhd_dwarf_name): New function.
 662         * langhooks-def.h (lhd_dwarf_name): Declare.
 663         (LANG_HOOKS_DWARF_NAME): New macro, defaults to lhd_dwarf_name.
 664         * dwarf2out.c (dwarf2_name): Use the dwarf_name language hook.
 665         * ada/misc.c (gnat_dwarf_name): New function.
 666         (LANG_HOOKS_DWARF_NAME): Define to gnat_dwarf_name.
 667
 668 2006-05-19  Richard Sandiford  <richard@codesourcery.com>
 669
 670         * libgcc2.c (MIN_UNITS_PER_WORD): Move default definition from
 671         libgcc2.h.
 672         (LIBGCC2_UNITS_PER_WORD): Provide default definition, using old
 673         MIN_UNITS_PER_WORD logic from libgcc2.h.  Do nothing if
 674         LIBGCC2_UNITS_PER_WORD > MIN_UNITS_PER_WORD.
 675         * libgcc2.h (MIN_UNITS_PER_WORD): Remove definition from here.
 676         Use LIBGCC2_UNITS_PER_WORD rather than MIN_UNITS_PER_WORD to
 677         determine the size of Wtype, etc.
 678         * mklibgcc.in (LIB2_SIDITI_CONV_FUNCS): New argument.
 679         (swfloatfuncs): New variable.
 680         (dwfloatfuncs): Likewise.
 681         (lib2funcs): Remove floating-point conversion functions from
 682         initial assignment.  Use LIB2_SIDITI_CONV_FUNCS to determine
 683         the set of conversion routines needed.  Allow entries to specify
 684         an object name, filename and word size.  Update users accordingly.
 685         * Makefile.in (libgcc.mk): Pass LIB2_SIDITI_CONV_FUNCS.
 686         * config/mips/t-mips (LIB2_SIDITI_CONV_FUNCS): Define.
 687
 688         Revert:
 689
 690         2006-02-08  Roger Sayle  <roger@eyesopen.com>
 691
 692         PR target/22209
 693         * config/fixtfdi.c: New libgcc source file.
 694         * config/fixunstfdi.c: New source file.
 695         * config/floatditf.c: New source file.
 696         * config/floatunditf.c: New souce file.
 697         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
 698         files above instead of config/mips/_tilib.c.
 699         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
 700
 701 2006-05-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 702
 703         * pa/t-hpux-shlib (SHLIB_LINK): Remove `-lc'.
 704         * pa/pa-hpux11.h (LIB_SPEC): Update comment.
 705
 706 2006-05-18  Mike Stump  <mrs@apple.com>
 707
 708         Fix up vla, vm and [*] sematics.
 709
 710         PR c/18740
 711         PR c/7948
 712         PR c/25802
 713         PR c/27673
 714         * c-tree.h (struct c_arg_info): Add had_vla_unspec.
 715         (c_vla_unspec_p): Add.
 716         (c_vla_type_p): Add.
 717         * c-decl.c (struct c_scope): Add had_vla_unspec.
 718         (build_array_declarator): Add support for [*].
 719         (grokdeclarator): Likewise.
 720         (grokparms): Likewise.
 721         (get_parm_info): Likewise.
 722         * c-objc-common.c (c_vla_unspec_p): Likewise.
 723         * c-objc-common.h (LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P): Likewise.
 724         * c-parser.c (c_parser_typeof_specifier): Evaluate arguments to
 725         typeof when argument is a variably modified type not inside sizeof or alignof.
 726         (c_parser_direct_declarator_inner): Propagate errors.
 727         (c_parser_sizeof_expression): Add support for [*].
 728         (c_parser_parms_declarator): Initialize had_vla_unspec.
 729         (c_parser_parms_list_declarator): Likewise.
 730         * c-typeck.c (c_vla_type_p): Add.
 731         (composite_type): Add support for vla compositing.
 732         (comptypes_internal): Add support for vla compatibility.
 733         (c_expr_sizeof_expr): Evaluate vla arguments.
 734         * tree.c (variably_modified_type_p): Update comment for [*].
 735
 736 2006-05-18  Michael Matz  <matz@suse.de>
 737
 738         PR target/27599
 739         * config.host: Make assignments to host_xmake_file cumulative.
 740         * config.host (*-darwin*): Test $host, not $target.
 741
 742 2006-05-12  Stuart Hastings  <stuart@apple.com>
 743
 744         * config/i386/i386.opt (-mstackrealign): New flag.
 745         * config/i386/i386.c (force_align_arg_pointer): New attribute.
 746         (ix86_handle_cconv_attribute): Emit error when
 747         force_align_arg_pointer attribute collides with too many regparms.
 748         (ix86_function_regparm): Limit regparms when used with
 749         force_align_arg_pointer attribute.  (ix86_internal_arg_pointer):
 750         Support stack-realigning prologue in non-main functions.  Emit
 751         warning for nested functions under -mstackrealign, emit error for
 752         nested functions with force_align_arg_pointer attribute.
 753         * doc/extend.texi (force_align_arg_pointer): Document it.
 754         * doc/invoke.texi (-mstackrealign): Document it.
 755
 756 2006-05-17  Kazu Hirata  <kazu@codesourcery.com>
 757
 758         PR rtl-optimization/27477
 759         * combine.c (try_combine): Don't split a parallel consisting
 760         of two sets into two individual sets if both sets reference
 761         cc0.
 762
 763 2006-05-17  H.J. Lu  <hongjiu.lu@intel.com>
 764
 765         * config/arm/arm.opt (target_fpe_name): Remove VarExists.
 766         * config/rs6000/rs6000.opt (TARGET_NO_FP_IN_TOC): Likewise.
 767
 768         * doc/options.texi (VarExists): Updated.
 769
 770 2006-05-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 771
 772         * unwind-dw2.c: Add declarations for uw_update_context and
 773         uw_frame_state_for.
 774         * pa/hpux-unwind.h (pa_fallback_frame_state): When an export stub is
 775         detected, advance frame state and context once to skip over stub.
 776
 777 2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>
 778
 779         PR middle-end/20256
 780         PR middle-end/26435
 781         * tree-loop-linear.c (linear_transform_loops): Don't test perfect_nest_p.
 782         Call rewrite_into_loop_closed_ssa only when something changed.
 783         * lambda.h (gcc_loopnest_to_lambda_loopnest): Update declaration.
 784         * lambda-code.c (can_convert_to_perfect_nest): Declared.
 785         (gcc_loopnest_to_lambda_loopnest): Removed need_perfect_nest parameter.
 786         Test for perfect_nest_p here.  Fix formating.
 787         (replace_uses_equiv_to_x_with_y): Fix formating.
 788         (stmt_uses_op): Removed.
 789         (can_convert_to_perfect_nest): Removed loopivs parameter.
 790         Complete the test by checking the scalar dependences.
 791         (perfect_nestify): Remove the test for can_convert_to_perfect_nest.
 792         Fix formating.
 793
 794 2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>
 795
 796         PR bootstrap/22541
 797         From Dan Kegel <dank@kegel.com>:
 798         * Makefile.in: Strip "dir/../" combinations from SYSTEM_INCLUDE_DIR.
 799
 800 2006-05-17  Eric Botcazou  <ebotcazou@adacore.com>
 801
 802         * tree.c (variably_modified_type_p) <ARRAY_TYPE>: Return true
 803         if the element type is variably modified without recursing.
 804
 805 2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>
 806
 807         PR middle-end/27332
 808         * tree-loop-linear.c (try_interchange_loops): Test for
 809         no data dependences.
 810
 811 2006-05-17  Zdenek Dvorak <dvorakz@suse.cz>
 812
 813         PR tree-optimization/27548
 814         * tree-scalar-evolution.c (scev_const_prop): Do not prolong life
 815         range of ssa names that appear on abnormal edges.
 816         * tree-ssa-loop-ivopts.c (contains_abnormal_ssa_name_p): Export.
 817         * tree-flow.h (contains_abnormal_ssa_name_p): Declare.
 818
 819 2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>
 820
 821         PR middle-end/27620
 822         * expr.c (safe_from_p): Handle CONSTRUCTOR again.
 823
 824 2006-05-17  Jakub Jelinek  <jakub@redhat.com>
 825
 826         PR middle-end/27415
 827         * tree.h (OMP_PARALLEL_COMBINED): Define.
 828         * gimplify.c (struct gimplify_omp_ctx): Add is_combined_parallel field.
 829         (new_omp_context): Add is_combined_parallel argument.
 830         (gimplify_scan_omp_clauses): Add in_combined_parallel argument, adjust
 831         new_omp_context caller.
 832         (gimplify_omp_parallel, gimplify_omp_for, gimplify_omp_workshare):
 833         Adjust gimplify_scan_omp_clauses callers.
 834         (omp_is_private): Issue errors if iteration variable is firstprivate
 835         or reduction in the current context.
 836         * c-parser.c (c_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
 837         on combined parallel workshare constructs.
 838
 839 2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 840
 841         * Makefile.in (GCC_OBJS): Replace options.o with gcc-options.o.
 842         (gcc-options.o): New rule.
 843
 844         * optc-gen.awk: Protect variables for gcc-options.o with
 845         #ifdef GCC_DRIVER/#endif.
 846
 847 2006-05-16  Daniel Berlin <dberlin@dberlin.org>
 848
 849         Fix PR tree-optimization/27373
 850         * tree-ssa-forwprop.c: (forward_propagate_addr_expr_1): Add argument.
 851          (forward_propagate_addr_expr): Update call.
 852
 853 2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 854
 855         * doc/options.texi: Move the Negative option.
 856
 857 2006-05-16  Richard Guenther  <rguenther@suse.de>
 858
 859         PR tree-optimization/22303
 860         * tree-ssa-ccp.c (fold_const_aggregate_ref): Handle reads
 861         from STRING_CSTs.
 862         (evaluate_stmt): Fall back to fold_const_aggregate_ref, if
 863         ccp_fold did not simplify the statement.
 864
 865 2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 866
 867         PR driver/26885
 868         * Makefile.in (GCC_OBJS): New.
 869         (OBJS-common): Add opts-common.o.
 870         (xgcc$(exeext)): Replace gcc.o with $(GCC_OBJS).
 871         (cpp$(exeext)): Likewise.
 872         (gcc.o): Also depend on opts.h.
 873         (opts-common.o): New.
 874
 875         * common.opt (gcoff): Add Negative(gdwarf-2).
 876         (gdwarf-2): Add Negative(gstabs).
 877         (gstabs): Add Negative(gstabs+).
 878         (gstabs+): Add Negative(gvms).
 879         (gvms): Add Negative(gxcoff).
 880         (gxcoff): Add Negative(gxcoff+).
 881         (gxcoff+): Add Negative(gcoff).
 882         * config/i386/i386.opt (m32): Add Negative(m64).
 883         (m64): Add Negative(m32).
 884
 885         * doc/options.texi: Document the Negative option.
 886
 887         * gcc.c: Include "opts.h".
 888         (main): Call prune_options after expandargv.
 889
 890         * optc-gen.awk: Generate common declarations for all flag
 891         variables in options.c. Output the neg_index field.
 892
 893         * opts.c (find_opt): Moved to ...
 894         * opts-common.c: Here. New file.
 895
 896         * opts.h (cl_option): Add a neg_index field.
 897         (find_opt): New.
 898         (prune_options): Likewise.
 899
 900 2006-05-16  Jakub Jelinek  <jakub@redhat.com>
 901
 902         PR middle-end/27573
 903         * omp-low.c (expand_omp_parallel): Don't assert
 904         .OMP_DATA_I = &.OMP_DATA_O is the first statement in the block,
 905         instead search for it.
 906
 907         PR c/27499
 908         * gimplify.c (gimplify_omp_for): Remove assertion that iteration var
 909         is signed.
 910
 911 2006-05-16  Andreas Schwab  <schwab@suse.de>
 912
 913         * doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Add missing @end
 914         defmac.
 915
 916 2006-05-15  Roger Sayle  <roger@eyesopen.com>
 917
 918         PR target/26600
 919         * config/i386/i386.c (legitimate_constant_p) <CONST_DOUBLE>: TImode
 920         integer constants other than zero are only legitimate on TARGET_64BIT.
 921         <CONST_VECTOR> Only zero vectors are legitimate.
 922         (ix86_cannot_force_const_mem): Integral and vector constants can
 923         always be put in the constant pool.
 924
 925 2006-05-16  DJ Delorie  <dj@redhat.com>
 926
 927         * crtstuff.c (__dso_handle): Set section from
 928         TARGET_LBIGCC_SDATA_SECTION if defined.
 929         * doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Document.
 930         * config/mips/mips.h (TARGET_LIBGCC_SDATA_SECTION): Define.
 931
 932 2006-05-16  Danny Smith  <dannysmith@users.sourceforge.net>
 933
 934         PR target/27599
 935         * config.host (i[34567]86-*-mingw*): Append i386/x-mingw32 to
 936         host_xmake_file.
 937
 938 2006-05-16  Ben Elliston  <bje@au.ibm.com>
 939
 940         * tree-cfg.c (split_edge_bb_loc): Remove unused variable `src'.
 941
 942 2006-05-15  Per Bothner  <per@bothner.com>
 943
 944         * tree.c: (last_annotated_node): Use sources_locus typedef.
 945         This permits bootstrapping with --enable-mapped-location.
 946
 947 2006-05-15  Zdenek Dvorak <dvorakz@suse.cz>
 948
 949         PR tree-optimization/26830
 950         * tree-into-ssa.c (struct ssa_name_info): Add age field.
 951         (info_for_ssa_name, current_info_for_ssa_name_age,
 952         blocks_to_update): New variables.
 953         (get_ssa_name_ann): Use info_for_ssa_name instead of SSA_NAME_AUX.
 954         (clear_ssa_name_info, initialize_flags_in_bb,
 955         mark_block_for_update): New functions.
 956         (mark_def_sites, rewrite_stmt): Assert that blocks_to_update is NULL.
 957         (insert_phi_nodes_for, mark_use_interesting, prepare_block_for_update,
 958         prepare_def_site_for): Use mark_block_for_update.
 959         (mark_def_interesting): Assert that the processed block is marked in
 960         blocks_to_update.  Do not take blocks argument.
 961         (prepare_use_sites_for, prepare_names_to_update): Do not take blocks
 962         argument.
 963         (rewrite_update_init_block, rewrite_update_stmt): Only process
 964         blocks with statements to rewrite.
 965         (delete_update_ssa): Do not clear SSA_NAME_AUX.
 966         (update_ssa): Initialize and free blocks_to_update.  Do not
 967         clear flags on statements.  Do not use blocks bitmap.
 968         * tree.h (SSA_NAME_AUX): Removed.
 969         (struct tree_ssa_name): Removed aux field.
 970         * print-tree.c (print_node): Do not print SSA_NAME_AUX.
 971
 972 2006-05-15  Richard Guenther  <rguenther@suse.de>
 973
 974         PR tree-optimization/27603
 975         * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined):
 976         Do computations in original type.
 977
 978 2006-05-15  Mircea Namolaru  <namolaru@il.ibm.com>
 979
 980         * see.c: Code style changes such as redundant paranthesis,
 981         redundant intialization of local variables etc.
 982         (see_main): Declared now as static.
 983         * doc/invoke.texi: Update that -fsee is not enabled by
 984         default at -O3.
 985
 986 2006-05-15  Jakub Jelinek  <jakub@redhat.com>
 987
 988         * omp-low.c (check_omp_nesting_restrictions): New function.
 989         (scan_omp_1): Call it.
 990
 991         PR middle-end/27416
 992         * omp-low.c (build_outer_var_ref): If VAR is reference in orphaned
 993         construct, return *VAR.
 994
 995 2006-05-14  Kaz Kojima  <kkojima@gcc.gnu.org>
 996
 997         PR rtl-optimization/27406
 998         * bt-load.c (migrate_btr_def): Skip the block having abnormal
 999         edges.
1000
1001 2006-05-14  Roger Sayle  <roger@eyesopen.com>
1002
1003         PR rtl-optimization/27538
1004         * combine.c (expand_compound_operation): Call gen_lowpart
1005         before calling simplify_shift_const.
1006
1007 2006-05-14  Roger Sayle  <roger@eyesopen.com>
1008
1009         PR rtl-optimization/22563
1010         * expmed.c (store_fixed_bit_field): When using AND and IOR to store
1011         a fixed width bitfield, always force the intermediates into psuedos.
1012
1013 2006-05-14  Bernhard Fischer  <aldot@gcc.gnu.org>
1014
1015         PR 27501
1016         * mkconfig.sh: Use operator = instead of == for test.
1017
1018 2006-05-13  Nick Clifton  <nickc@redhat.com>
1019
1020         * dwarf2out.c (dbx_reg_number): Check return value from
1021         LEAF_REG_REMAP and only use it if it is valid.
1022         (multiple_reg_loc_descriptor): Likewise.
1023
1024 2006-05-13  Richard Guenther  <rguenther@suse.de>
1025
1026         * config.host <i[34567]86-*-cygwin*>: Append i386/x-cygwin to
1027         host_xmake_file.
1028
1029 2006-05-13  Steven Bosscher  <stevenb.gcc@gmail.com>
1030
1031         * df-core.c (df_bb_regno_last_use_find): Do not look for dataflow
1032         information attached to non-INSNs such as NOTEs.
1033         (df_bb_regno_first_def_find, df_bb_regno_last_def_find): Likewise.
1034
1035 2006-05-12  Andreas Krebbel  <krebbel1@de.ibm.com>
1036
1037         * config/s390/s390.c (s390_const_ok_for_constraint_p): Disallow -4G for
1038         On contraint.
1039         * config/s390/s390.md: Adjust comment describing On constraint.
1040
1041 2006-05-11  Jan Hubicka  <jh@suse.cz>
1042
1043         * cgraphunit.c (decide_is_function_needed): Don't force always_inline
1044         to be output at -O0.
1045
1046 2006-05-11  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1047
1048         PR middle-end/27384
1049         * fold-const.c (size_binop): Move sanity check for arguments to
1050         the beginning of the function.
1051
1052         PR middle-end/27488
1053         * fold-const.c (tree_expr_nonnegative_p): Return early on invalid
1054         expression.
1055
1056 2006-05-11  Richard Guenther  <rguenther@suse.de>
1057
1058         PR middle-end/27529
1059         * fold-const.c (fold_unary): Handle intermediate conversion
1060         to a pointer type like intermediate conversion to an integer
1061         type in folding of (T1)(T2)var to var.
1062         Match the code to the comment in the final conversion for
1063         (T1)(T2)var to (T1)var regarding to type precision.  Rather
1064         than disallow T1 being of pointer type, assert that both T1
1065         and var are of pointer type or not.  Make sure not to fall
1066         over the frontends lazyness wrt array to pointer decay though.
1067
1068 2006-05-10  Richard Earnshaw  <rearnsha@arm.com>
1069
1070         * arm.c (arm_struct_value_rtx): Delete.
1071         (TARGET_STRUCT_VALUE_RTX): Use the default definition.
1072         (arm_init_cumulative_args): Always initialize nregs to zero.
1073
1074 2006-05-10  Richard Guenther  <rguenther@suse.de>
1075
1076         PR tree-optimization/27532
1077         * tree-object-size.c (plus_expr_object_size): Fix typo.
1078
1079 2006-05-10  Kazu Hirata  <kazu@codesourcery.com>
1080
1081         PR target/24949
1082         * config/m68k/m68k.md (ashrdi_const32, ashrdi_const32_mem,
1083         ashrdi_const, ashrdi3): Use a scratch register.
1084
1085 2006-05-10  Richard Guenther  <rguenther@suse.de>
1086
1087         PR tree-optimization/27302
1088         * fold-const.c (operand_equal_p): For two comparisons,
1089         try comparison of one comparison code swapped if that yields
1090         the same code.
1091
1092 2006-05-10  Ben Elliston  <bje@au.ibm.com>
1093
1094         * tree-pretty-print.c (pretty_print_string): No need to handle
1095         '\0' as a special character.
1096
1097         * tree.h: Include "hashtab.h".
1098         (iterative_hash_expr): Use hashval_t in its prototype.
1099         * Makefile.in (TREE_H): Add $(HASHTAB_H).
1100
1101 2006-05-09  Steve Ellcey  <sje@cup.hp.com>
1102
1103         PR bootstrap/26872
1104         * config.gcc (hppa[12]*-*-hpux10*): Set gas to yes.
1105         (hppa*64*-*-hpux11*): Ditto.
1106         (hppa[12]*-*-hpux11*): Ditto.
1107
1108 2006-05-09  David Edelsohn  <edelsohn@gnu.org>
1109
1110         PR target/26545
1111         * config/rs6000/aix41.h (TARGET_64BIT): Define.
1112
1113 2006-05-09  Michael Matz  <matz@suse.de>
1114
1115         * config.host (<i[34567]86-*-*, x86_64-*-*>): Set
1116         host_extra_gcc_objs and host_xmake_file.
1117         (<*-*-linux*>): Don't overwrite host_xmake_file.
1118         * gcc.c (static_spec_functions): Add EXTRA_SPEC_FUNCTIONS.
1119         * config/i386/i386.h (EXTRA_SPEC_FUNCTIONS): Define.
1120         (host_detect_local_cpu): Declare.
1121         (CC1_CPU_SPEC): Add -march=native and -mtune=native cases.
1122         * config/i386/i386.c (override_options): Handle -mtune=native
1123         as -mtune=generic.
1124         * config/i386/x-i386: New file.
1125         * config/i386/driver-i386.c: New file.
1126         * doc/invoke.texi (<i386 and x86-64 Options>): Describe
1127         cpu-type "native".
1128
1129 2006-05-09  Dirk Mueller  <dmueller@suse.de>
1130         Richard Guenther  <rguenther@suse.de>
1131
1132         PR middle-end/27498
1133         * fold-const.c (fold_read_from_constant_string): Relax check
1134         for matching types to matching modes.
1135
1136 2006-05-09  Zdenek Dvorak <dvorakz@suse.cz>
1137
1138         PR rtl-optimization/27335
1139         * loop-unroll.c (peel_loops_completely): Use loops->parray to walk the
1140         loops.
1141
1142 2006-05-08  Chao-ying Fu  <fu@mips.com>
1143             Richard Sandiford  <richard@codesourcery.com>
1144
1145         * config/mips/mips-ps-3d.md (scc_ps, s<code>_ps): New patterns.
1146         (vcondv2sf, sminv2sf3, smaxv2sf3): Likewise.
1147         * config/mips/mips.md (UNSPEC_SCC): New constant.
1148         * config/mips/mips-protos.h (mips_expand_vcondv2sf): Declare.
1149         * config/mips/mips.c (mips_reverse_fp_cond_p): New function.
1150         (mips_emit_compare): Use it.
1151         (mips_expand_vcondv2sf): New function.
1152
1153 2006-05-08  Daniel Berlin  <dberlin@dberlin.org>
1154
1155         Fix PR tree-optimization/27093
1156         * tree-ssa-alias.c (recalculate_used_alone): Mark variables for
1157         renaming when they become not-used_alone.
1158
1159 2006-05-08  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1160
1161         * hpux-unwind.h (pa_fallback_frame_state): Handle return parameter
1162         relocation and relocation stubs.
1163
1164 2006-05-08  Eric Christopher  <echristo@apple.com>
1165
1166         * unwind-dw2-fde-darwin.c (examine_objects): Only check data
1167         section for ppc.
1168
1169 2006-05-08  Jan Hubicka  <jh@suse.cz>
1170
1171         PR middle-end/24561
1172         * cgraphunit.c (decide_is_function_needed): When not optimizing even
1173         unused static functions are needed.
1174
1175 2006-05-08  Roger Sayle  <roger@eyesopen.com>
1176
1177         PR target/27158
1178         * reload.c (find_reloads_toplev): Only return the simplified SUBREG
1179         of a reg_equiv_constant if the result is a legitimate constant.
1180
1181 2006-05-08  Uros Bizjak  <uros@kss-loka.si>
1182
1183         PR target/27277
1184         * config/i386/i386.c (ix86_rtx_costs) [FLOAT_EXTEND]: For
1185         standard 80387 constants, raise the cost to prevent
1186         compress_float_constant() to generate load from memory.
1187
1188 2006-05-08  Kazu Hirata  <kazu@codesourcery.com>
1189
1190         * config/arm/constraints.md (c): Fix a typo.
1191
1192         * see.c, tree-flow-inline.h, tree-phinodes.c: Fix comment
1193         typos.
1194
1195 2006-05-07  H.J. Lu  <hongjiu.lu@intel.com>
1196
1197         PR target/24879
1198         * config/i386/pmmintrin.h (_mm_monitor): Remove macro. Use
1199         inline function.
1200         (_mm_mwait): Likewise.
1201
1202         * config/i386/sse.md (sse3_mwait): Replace "mwait\t%0, %1" with
1203         "mwait".
1204         (sse3_monitor): Make it 32bit only.
1205         (sse3_monitor64): New. 64bit monitor.
1206
1207 2006-05-07  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1208
1209         PR target/27421
1210         * config/i386/i386.c (classify_argument): Skip fields with invalid
1211         types.
1212
1213 2006-05-07  Richard Guenther  <rguenther@suse.de>
1214
1215         PR tree-optimization/27409
1216         * tree-ssa-structalias.c (get_constraint_for_component_ref):
1217         Do not try to find zero-sized subvars.
1218
1219 2006-05-07  Richard Guenther  <rguenther@suse.de>
1220
1221         PR tree-optimization/27136
1222         * tree-ssa-loop-niter.c (get_val_for): Correct function
1223         comment, assert requirements.
1224         (loop_niter_by_eval): Stop processing if the iterated
1225         value did not simplify.
1226
1227 2006-05-07  Mircea Namolaru  <namolaru@il.ibm.com>
1228
1229         * opts.c (flag_see): remove its setting at -O3.
1230
1231 2006-05-07  Richard Earnshaw  <rearnsha@arm.com>
1232
1233         * genpeep.c (main): Make insn-peep.c depend on flags.h.
1234         * arm/constraints.md: New file.
1235         * arm.h (REG_CLASS_FROM_LETTER_P): Delete.
1236         (CONST_OK_FOR_ARM_LETTER, CONST_OK_FOR_THUMB_LETTER)
1237         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_ARM_LETTER)
1238         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT_STR_ARM)
1239         (CONSTRAINT_LEN, EXTRA_CONSTRAINT_THUMB, EXTRA_CONSTRAINT_STR)
1240         (EXTRA_MEMORY_CONSTRAINT): Likewise.
1241         * arm.md: Include constraints.md.
1242         (thumb_movsi_insn): Use satisfies_constraint_J.
1243         (movhi, movqi): Use satisfies_constraint_I.
1244
1245 2006-04-29 Anatoly Sokolov <aesok@post.ru>
1246
1247         * config/avr/avr.h (CRT_BINUTILS_SPECS): Fixed crt* file name
1248         for atmeg a645 device.
1249
1250 2006-05-06   Richard Guenther  <rguenther@suse.de>
1251
1252         PR tree-optimization/27151
1253         * tree-vect-transform.c (vectorizable_condition): Punt on
1254         values that have a different type than the condition.
1255
1256 2006-05-03  Aldy Hernandez  <aldyh@redhat.com>
1257
1258         PR/21391
1259         * c-parser.c (c_parser_cast_expression): Only insert casts into
1260         hash table if pointer.
1261         * function.c (used_types_insert_helper): Rename from
1262         used_types_insert.
1263         (used_types_insert): Call used_types_insert_helper.
1264         * function.h (used_types_insert): Accept only one argument.
1265
1266 2006-05-05  David Edelsohn  <edesohn@gnu.org>
1267
1268         * config/rs6000/rs6000.md: Mark all "X" constraints for clobbered
1269         scratch with output modifier.
1270
1271 2006-05-04  David Edelsohn  <edelsohn@gnu.org>
1272
1273         PR target/26481
1274         * config/rs6000/rs6000.md (stmsi_power): Mark clobber constraint
1275         with output modifier.
1276
1277 2006-05-04  Richard Sandiford  <richard@codesourcery.com>
1278
1279         PR target/26765
1280         * config/mips/mips.c (mips_symbolic_address_p): Return true
1281         for SYMBOL_TLSGD, SYMBOL_TLSLDM, SYMBOL_DTPREL, SYMBOL_TPREL,
1282         SYMBOL_GOTTPREL, and SYMBOL_TLS.
1283
1284 2006-05-04  Richard Guenther  <rguenther@suse.de>
1285
1286         PR tree-optimization/14287
1287         PR tree-optimization/14844
1288         PR tree-optimization/19792
1289         PR tree-optimization/21608
1290         PR tree-optimization/27090
1291         * tree-ssa-pre.c (try_combine_conversion): New function.
1292         (compute_avail): After constructing the value-handle
1293         expression, use try_combine_conversion to combine NOP_EXPRs
1294         with previous value-handle expressions and use the result if it
1295         is available.
1296
1297 2006-05-04  Joseph S. Myers  <joseph@codesourcery.com>
1298
1299         * config/mips/linux64.h (DWARF_OFFSET_SIZE): Remove.
1300
1301 2006-05-04  Jan Hubicka  <jh@suse.cz>
1302
1303         PR middle-end/25962
1304         * cgraphunit.c (verify_cgraph_node): Fix cgraph_hash testing.
1305
1306 2006-05-04  Bernd Schmidt  <bernd.schmidt@analog.com>
1307
1308         * config/bfin/predicates.md (const01_rtx): Tell generator programs
1309         that this only matches CONST_INTs.  All users changed to VOIDmode
1310         operands.
1311
1312         * config/bfin/bfin.c: Include "optabs.h".
1313         (bfin_rtx_costs): Some costs for vector operations, to allow combine
1314         to do more work.
1315         (enum bfin_builtins): Add a number of fractional and vector builtins.
1316         (bfin_init_builtins): Likewise.
1317         (struct builtin_description, bdesc_2arg, bdesc_1arg): New.
1318         (safe_vector_operand, bfin_expand_binop_builtin,
1319         bfin_expand_unop_builtin): New functions.
1320         (bfin_expand_builtin): Handle the new builtins.
1321         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
1322         __ADSPBLACKFIN__.
1323
1324 2006-05-04  Leehod Baruch  <leehod@il.ibm.com>
1325
1326         * see.c: New file.
1327         * Makefile.in (OBJS-common): Add see.o.
1328         (see.o): Add dependencies.
1329         * common.opt (fsee): New flag for the see optimization was added.
1330         * opts.c (flag_see): Initialized.
1331         * passes.c (init_optimization_passes, pass_see): New pass.
1332         * rtl.h (see_main): Declaration as extern.
1333         * timevar.def (TV_SEE): New.
1334         * tree-pass.h (pass_see): Declaration as extern.
1335         * invoke.texi (-fsee): Document.
1336         * recog.c (validate_simplify_insn): New function.
1337         * recog.h (validate_simplify_insn): Declaration as extern.
1338         * df-problems.c (df_chain_dump): Check for NULL.
1339
1340 2006-05-04  Kenneth Zadeck <zadeck@naturalbridge.com>
1341             Daniel Berlin  <dberlin@dberlin.org>
1342
1343         * cfgrtl.c (insert_insn_bb_end_new): New function.
1344         * basic-block.h (insert_insn_bb_end_new): Declaration as extern.
1345
1346 2006-05-04  Leehod Baruch  <leehod.baruch@weizmann.ac.il>
1347
1348         * df.h (struct web_entry): Moved from web.c.
1349         (union_defs): Declaration as extern.
1350         (unionfind_root): Likewise.
1351         (unionfind_union): Likewise.
1352         * web.c (struct web_entry): Moved to df.h.
1353         (unionfind_root): Remove static declaration.
1354         (unionfind_union): Likewise.
1355         (union_defs): Likewise and generalize to use callback function.
1356         (web_main): Update arguments for union_defs function call.
1357
1358 2006-05-04  Richard Guenther  <rguenther@suse.de>
1359
1360         PR tree-optimization/26447
1361         * tree-ssa-pre.c (realify_fake_stores): For necessary loads
1362         produce SSA_NAME copies before the store stmt to avoid
1363         breaking exception handling.
1364
1365 2006-05-04  Jakub Jelinek  <jakub@redhat.com>
1366
1367         PR middle-end/27388
1368         * gimplify.c (omp_is_private): If var is shared in some outer context,
1369         return false instead of true.  Stop searching on parallel context
1370         boundary.
1371
1372 2006-05-03  Alexandre Oliva  <aoliva@redhat.com>
1373
1374         PR java/8260
1375         * coverage.c: Use get_gcov_unsigned_t() instead of
1376         unsigned_type_node all over.
1377
1378 2006-05-02  Andrew MacLeod  <amacleod@redhat.com>
1379
1380         PR tree-optimization/27381
1381         * tree-phinodes.c (remove_phi_arg_num): When moving a phi argument,
1382         maintain the same immediate_use links.
1383         * tree-ssa-operands.c (dump_immediate_uses_for): Show iteration marker
1384         node rather than segfaulting.
1385
1386 2006-05-03  Jakub Jelinek  <jakub@redhat.com>
1387
1388         PR fortran/27395
1389         * gimplify.c (gimplify_scan_omp_clauses): Compare OMP_CLAUSE_CODE
1390         rather than TREE_CODE to OMP_CLAUSE_REDUCTION.  Set also GOVD_SEEN
1391         bit for OMP_CLAUSE_REDUCTION_PLACEHOLDER.
1392
1393 2006-05-02  Daniel Berlin  <dberlin@dberlin.org>
1394
1395         Fix PR tree-optimization/26626
1396         * tree-ssa-structalias.c (compute_points_to_sets): For now, solve
1397         always.
1398         * tree-ssa-operands.c (access_can_touch_variable): Allow
1399         typecasting through union pointers.
1400
1401 2006-05-02  Jakub Jelinek  <jakub@redhat.com>
1402
1403         PR c++/26943
1404         * omp-low.c (maybe_lookup_decl_in_outer_ctx): New function.
1405         (build_outer_var_ref): Use maybe_lookup_decl_in_outer_ctx
1406         to find if var will be a global variable even in the nested context.
1407         (omp_copy_decl): Only check for global variable at the end, it might
1408         be overridden in outer contexts.
1409         (scan_sharing_clauses): For global variables don't create a field.
1410         (lower_rec_input_clauses): Do nothing for global shared variables.
1411         Emit a barrier at the end of ILIST if there were any decls in both
1412         firstprivate and lastprivate clauses.
1413         (lower_send_clauses): Do nothing for global variables except for
1414         COPYIN.
1415
1416 2006-05-02  Zdenek Dvorak <dvorakz@suse.cz>
1417
1418         * tree.c (unsigned_type_for, signed_type_for): Make sure a type
1419         of the correct signedness is returned.
1420
1421 2006-05-02  Jeff Law  <law@redhat.com>
1422
1423         PR tree-optimization/27364
1424         * tree-vrp.c (vrp_int_const_binop): Fix detection of overflow from
1425         multiply expressions.
1426
1427 2006-05-02  Tom Tromey  <tromey@redhat.com>
1428
1429         * tree-flow-inline.h (op_iter_init_phiuse): Fixed typo.
1430
1431 2006-05-02  Kazu Hirata  <kazu@codesourcery.com>
1432
1433         PR target/27387
1434         * arm.c (arm_output_mi_thunk): Use pc-relative addressing when
1435         -mthumb -fPIC are used.
1436
1437 2006-05-02  Stanislaw Skowronek  <skylark@linux-mips.org>
1438             Joshua Kinard  <kumba@gentoo.org>
1439
1440         PR target/25871
1441         * config/mips/mips.h (TRAMPOLINE_TEMPLATE): Avoid 32-bit moves
1442         with 64-bit pointers.
1443
1444 2006-05-02  Paul Brook  <paul@codesourcery.com>
1445
1446         * config/arm/arm.c (add_minipool_forward_ref): Check if insn
1447         and pool overlap.
1448         (create_fix_barrier): Check that a suitable barrier location is
1449         found.
1450         (arm_reorg): Include ftmp->address in allowable range of addresses.
1451
1452 2006-05-02  David Billinghurst <David.Billinghurst@riotinto.com>
1453
1454         PR ada/27366
1455         * ada/env.c (__gnat_clearenv): Use unsetenv() to clear environment
1456         on Cygwin.
1457
1458 2006-05-02  Jakub Jelinek  <jakub@redhat.com>
1459
1460         PR middle-end/27337
1461         * gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
1462         around RESULT_DECL for result passed by reference.
1463         (gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
1464         * omp-low.c (use_pointer_for_field): Don't look at
1465         DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
1466         (scan_omp_1): Call remap_decl on RESULT_DECLs.
1467         (lower_rec_input_clauses): Don't allocate VLA memory for the second
1468         time or var for passing by reference for
1469         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
1470         TREE_ADDRESSABLE variables when passing by reference.
1471
1472         * omp-low.c (dump_omp_region): Fix output formatting.
1473
1474         PR middle-end/27328
1475         * omp-low.c (remove_exit_barrier): Handle NULL exit_bb.
1476         (expand_omp_parallel): Likewise.
1477         * tree-cfg.c (move_sese_region_to_fn): Likewise.
1478
1479         PR middle-end/27325
1480         * omp-low.c (lower_omp_sections): Call maybe_catch_exception
1481         on statement list containing also constructors and destructors.
1482         (lower_omp_single, lower_omp_for, lower_omp_parallel): Likewise.
1483
1484         PR middle-end/27310
1485         * except.c (duplicate_eh_regions): Fix clearing of
1486         cfun->eh->region_array entries.
1487
1488 2006-05-01  DJ Delorie  <dj@redhat.com>
1489
1490         * configure.ac (gcc_cv_nm): Don't use an in-tree nm if
1491         build!=host.
1492         (gcc_cv_objdump): Likewise.
1493         * configure: Regenerated.
1494
1495 2006-05-01  Kazu Hirata  <kazu@codesourcery.com>
1496
1497         PR target/27374
1498         * config/arm/vfp.md (*arm_movdi_vfp): Correct the output
1499         templates for case 3 and 4.
1500
1501 2006-05-01  DJ Delorie  <dj@redhat.com>
1502
1503         * vec.c: Include bconfig.h when appropriate.
1504         * Makefile.in (build/vec.o): Adjust dependencies.
1505         * mkconfig.sh: Make sure config.h isn't used for build machine
1506         compiles.
1507
1508 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
1509
1510         * tree-into-ssa.c (phis_to_rewrite, blocks_with_phis_to_rewrite): New
1511         variables.
1512         (mark_phi_for_rewrite): New function.
1513         (insert_phi_nodes_for, mark_use_interesting): Call
1514         mark_phi_for_rewrite.
1515         (rewrite_update_phi_arguments): Traverse only phis in phis_to_rewrite.
1516         (update_ssa): Initialize and free phis_to_rewrite.
1517
1518 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
1519
1520         PR rtl-optimization/27291
1521         * loop-doloop.c (add_test, doloop_modify): Handle the case condition is
1522         folded to a constant.
1523
1524 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
1525
1526         PR tree-optimization/27283
1527         * tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
1528         not whole # of iteration descriptions.
1529         (niter_for_exit): Return just # of iterations.  Fail if # of iterations
1530         uses abnormal ssa name.
1531         (niter_for_single_dom_exit): Ditto.
1532         (find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
1533         return just the number of iterations.
1534
1535 2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>
1536
1537         PR tree-optimization/27144
1538         * tree-ssa-loop-niter.c (derive_constant_upper_bound): New function.
1539         (record_estimate): Only record constant upper bound.
1540         (infer_loop_bounds_from_undefined): Call
1541         compute_estimated_nb_iterations just once.
1542         (proved_non_wrapping_p): Renamed to ...
1543         (n_of_executions_at_most): ... this.  Expect bound to be a constant.
1544         (convert_step_widening, scev_probably_wraps_p): Call
1545         n_of_executions_at_most instead of proved_non_wrapping_p.
1546         (substitute_in_loop_info): Do not replace values in bounds.
1547         * cfgloop.h (struct nb_iter_bound): Remove "additional" field.  Update
1548         comments.
1549
1550 2006-05-01  Richard Henderson  <rth@redhat.com>
1551
1552         PR c/27358
1553         * c-parser.c (c_parser_skip_to_end_of_block_or_statement): Move after
1554         c_parser_skip_to_pragma_eol.  Convert to switch statement.  Handle
1555         CPP_PRAGMA.
1556
1557 2006-05-01  Roger Sayle  <roger@eyesopen.com>
1558
1559         * c-typeck.c (parser_build_binary_op): Don't call the function
1560         unsigned_conversion_warning to spot operand/result type overflow.
1561         (build_binary_op): Instead, call convert_and_check instead of
1562         convert to report the problem when the operands are promoted.
1563         * c-common.c (unsigned_conversion_warning): Make static.
1564         * c-common.h (unsigned_conversion_warning): Delete prototype.
1565
1566 2006-05-01  Richard Guenther  <rguenther@suse.de>
1567
1568         PR tree-optimization/26726
1569         * tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
1570         problem ...
1571         (find_interesting_uses_address): ... we work around here
1572         by folding INDIRECT_REFs in the substituted base.
1573
1574 2006-05-01  Diego Novillo  <dnovillo@redhat.com>
1575
1576         * omp-low.c (dump_omp_region): Add newlines.
1577
1578 2006-04-30  Roger Sayle  <roger@eyesopen.com>
1579
1580         * common.opt (Woverflow): New command line option.
1581         * c-common.c (constant_expression_warning): Check warn_overflow.
1582         (overflow_waring): Pass OPT_Woverflow to warning.
1583         (unsigned_conversion_warning): Likewise.
1584         (convert_and_check): Likewise.
1585         * doc/invoke.texi: Document new command line option.
1586
1587 2006-04-30  David Edelsohn  <edelsohn@gnu.org>
1588
1589         * config/rs6000/rs6000.c (rs6000_override_options): Enable
1590         TARGET_NO_FP_IN_TOC for section anchors.
1591         (optimization_options): Enable section anchors for all
1592         non-"Objective" languages.
1593
1594 2006-04-28  Eric Christopher  <echristo@apple.com>
1595
1596         * config/darwin-c.c (darwin_ms_struct): Move this
1597         (darwin_set_default_type_attributes): and this...
1598         * config/darwin.c: ... here.
1599         * config/darwin.h (darwin_ms_struct): Declare.
1600
1601 2006-04-28  Andrew MacLeod  <amacleod@redhat.com>
1602
1603         * tree-ssa-dom.c (propagate_rhs_into_lhs): Fix assert clause.
1604
1605 2006-04-28  Roger Sayle  <roger@eyesopen.com>
1606
1607         PR c/25309
1608         * c-typeck.c (struct spelling): Make I an unsigned HOST_WIDE_INT.
1609         (push_array_bounds): Delete prototype.  Change BOUNDS argument to
1610         an unsigned HOST_WIDE_INT.
1611         (print_spelling): Use HOST_WIDE_INT_PRINT_UNSIGNED to output the
1612         array index.
1613         (really_start_incremental_init): No need to call convert because
1614         bitsize_zero_node is already of type bitsizetype.
1615         (push_init_level): Extract the value of constructor_index as an
1616         unsigned HOST_WIDE_INT quantity, using tree_low_cst.
1617         (process_init_element): Likewise.
1618
1619 2006-04-28  Joseph S. Myers  <joseph@codesourcery.com>
1620
1621         * gcc.c (process_command): Add program name to GCC_EXEC_PREFIX
1622         value before passing to make_relative_prefix.
1623
1624 2006-04-28  Alan Modra  <amodra@bigpond.net.au>
1625
1626         PR middle-end/27260
1627         * builtins.c (expand_builtin_memset): Expand val in original mode.
1628
1629 2006-04-27  Eric Christopher  <echristo@apple.com>
1630
1631         * target-def.h (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Bracket
1632         with #ifndef/#endif.
1633         * config/darwin-c.c (darwin_ms_struct): New.
1634         (darwin_pragma_ms_struct): Ditto.
1635         (darwin_set_default_type_attributes): Ditto.
1636         * config/darwin-protos.h (darwin_pragma_ms_struct): Declare.
1637         * config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS):
1638         Register ms_struct pragma.
1639         * config/i386/darwin.h (REGISTER_TARGET_PRAGMAS): Declare.
1640         (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Ditto.
1641         * config/rs6000/rs6000.c (rs6000_set_default_type_attributes): Call
1642         darwin_set_default_type_attributes if TARGET_MACHO.
1643
1644 2006-04-27  Andrew MacLeod  <amacleod@redhat.com>
1645
1646         PR tree-optimization/26854
1647         * tree-vrp.c (remove_range_assertions): Use new Immuse iterator.
1648         * doc/tree-ssa.texi: Update immuse iterator documentation.
1649         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Use new iterator.
1650         * tree-ssa-dom.c (propagate_rhs_into_lhs): Use new iterator.
1651         * tree-flow-inline.h (end_safe_imm_use_traverse, end_safe_imm_use_p,
1652         first_safe_imm_use, next_safe_imm_use): Remove.
1653         (end_imm_use_stmt_p): New.  Check for end of immuse stmt traversal.
1654         (end_imm_use_stmt_traverse): New.  Terminate immuse stmt traversal.
1655         (move_use_after_head): New.  Helper function to sort immuses in a stmt.
1656         (link_use_stmts_after): New.  Link all immuses in a stmt consescutively.
1657         (first_imm_use_stmt): New.  Get first stmt in an immuse list.
1658         (next_imm_use_stmt): New.  Get next stmt in an immuse list.
1659         (first_imm_use_on_stmt): New.  Get first immuse on a stmt.
1660         (end_imm_use_on_stmt_p): New.  Check for end of immuses on a stmt.
1661         (next_imm_use_on_stmt): New.  Move to next immuse on a stmt.
1662         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Use new iterator.
1663         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use new iterator.
1664         (perfect_nestify): Use new iterator.
1665         * tree-vect-transform.c (vect_create_epilog_for_reduction): Use new
1666         iterator.
1667         * tree-flow.h (struct immediate_use_iterator_d): Add comments.
1668         (next_imm_name): New field in struct immediate_use_iterator_d.
1669         (FOR_EACH_IMM_USE_SAFE, BREAK_FROM_SAFE_IMM_USE): Remove.
1670         (FOR_EACH_IMM_USE_STMT, BREAK_FROM_IMM_USE_STMT,
1671         FOR_EACH_IMM_USE_ON_STMT): New immediate use iterator macros.
1672         * tree-cfg.c (replace_uses_by): Use new iterator.
1673         * tree-ssa-threadedge.c (lhs_of_dominating_assert): Use new iterator.
1674         * tree-ssa-operands.c (correct_use_link): Remove.
1675         (finalize_ssa_use_ops): No longer call correct_use_link.
1676
1677 2006-04-27  Stuart Hastings  <stuart@apple.com>
1678
1679         * config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): New.
1680         * config/t-darwin (crt3.o): Use it.
1681         * config/rs6000/rs6000.c (rs6000_initialize_trampoline): Remove
1682         'pmode', use Pmode instead of SImode for SYMBOL_REF.
1683         * config/rs6000/rs6000.md (call_indirect_nonlocal_sysv,
1684         call_nonlocal_sysv, call_value_indirect_nonlocal_sysv,
1685         call_value_nonlocal_sysv): Suffix with the "P" macro for 32/64
1686         support.
1687
1688 2006-04-27  Roger Sayle  <roger@eyesopen.com>
1689
1690         * expmed.c (store_fixed_bit_field): If we're not optimizing for
1691         size, force the intermediate into a new pseudo rather instead of
1692         performing both a bitwise AND and a bitwise IOR in memory.
1693
1694 2006-04-27  Richard Guenther  <rguenther@suse.de>
1695
1696         PR rtl-optimization/26685
1697         * params.def (PARAM_MAX_CSE_INSNS): Correct typo that named
1698         this one "max-flow-memory-locations".
1699
1700 2006-04-27  Richard Guenther  <rguenther@suse.de>
1701
1702         PR tree-optimization/25148
1703         * tree-vrp.c (compare_values): Remove code dealing with
1704         comparisons against type min/max value.  Honour overflow
1705         and negative constants in code dealing with comparisons
1706         of plus and minus expressions.
1707         (value_inside_range): Use fold_binary with LE_EXPR and
1708         GE_EXPR rather than compare_values.
1709
1710 2006-04-27  Dirk Mueller  <dmueller@suse.de>
1711
1712         * config/i386/xmmintrin.h (_mm_shuffle_pi16): Declare
1713         prototype for SSE.
1714
1715 2006-04-26  Kenneth Zadeck <zadeck@naturalbridge.com>
1716
1717         * basic-block.h (safe_insert_insn_on_edge): Removed.
1718         * cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Removed.
1719
1720 2006-04-26  David Edelsohn  <edelsohn@gnu.org>
1721             Paolo Bonzini  <bonzini@gnu.org>
1722
1723         PR middle-end/27282
1724         * combine.c (simplify_and_const_int_1): Use gen_int_mode.
1725         (simplify_and_const_int): Same.
1726
1727 2006-04-26  Aldy Hernandez  <aldyh@redhat.com>
1728
1729         * tree-ssa-dse.c (dse_optimize_stmt): Remove unused variable USE.
1730
1731 2006-04-26  Jakub Jelinek  <jakub@redhat.com>
1732
1733         PR c/26171
1734         * cgraph.c (cgraph_varpool_finalize_decl): Don't call
1735         cgraph_varpool_assemble_pending_decls if -fopenmp, unless
1736         cgraph_global_info_ready.
1737
1738         PR middle-end/26913
1739         * tree-cfg.c (find_outermost_region_in_block): Handle RESX_EXPR.
1740
1741         PR c/25996
1742         * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for if
1743         either decl or init is error_mark_node.
1744
1745         PR middle-end/25989
1746         * tree-flow.h (struct omp_region): Add sched_kind.
1747         * omp-low.c (expand_parallel_call): Use region->inner->sched_kind
1748         instead of extracting omp for data.
1749         (expand_omp_for): Save extracted sched_kind.
1750
1751 2006-04-25  Roger Sayle  <roger@eyesopen.com>
1752
1753         * expmed.c (store_bit_field): Also check whether the bitsize is
1754         valid for the machine's "insv" instruction before moving the
1755         target into a pseudo for use with the insv.
1756         * config/i386/predicates.md (const8_operand): New predicate.
1757         * config/i386/i386.md (extv, extzv, insv): Use the new
1758         const8_operand predicate where appropriate.
1759
1760 2006-04-25  DJ Delorie  <dj@redhat.com>
1761
1762         * doc/install.texi (Specific): Clarify that this is not a list of
1763         supported hosts or targets.
1764
1765 2006-04-25  Richard Sandiford  <richard@codesourcery.com>
1766
1767         PR rtl-optimization/26725
1768         * cfgrtl.c (rtl_redirect_edge_and_branch_force): Set the source
1769         block's BB_DIRTY flag.
1770
1771 2006-04-25  Geoffrey Keating  <geoffk@apple.com>
1772
1773         * dwarf2out.c (size_of_locs): Don't fill dw_loc_addr if there
1774         are no branches.
1775
1776         * dwarf2asm.c (dw2_asm_output_data): Don't generate RTL just
1777         to print an integer.
1778
1779 2006-04-25  David Edelsohn  <edelsohn@gnu.org>
1780
1781         * varasm.c (align_variable): New function.
1782         (get_block_for_decl): Apply align_variable to DECL before
1783         calculating section information.
1784         (assemble_variable): Split out alignment computation.
1785
1786 2006-04-25  Andreas Krebbel  <krebbel1@de.ibm.com>
1787
1788         * expmed.c (store_bit_field): Handle paradoxical subregs on big endian
1789         machines.
1790
1791 2006-04-25  Bernd Schmidt  <bernd.schmidt@analog.com>
1792
1793         * genmodes.c (make_vector_mode): Allow making VECTOR_MODE_INT of a
1794         MODE_PARTIAL_INT mode.
1795         * config/bfin/bfin-modes.def: Add V2PDI and V2SI.
1796         * config/bfin/bfin.c (print_operand): Add macflag and mac/msu modifiers
1797         for CONST_INTs.
1798         (hard_regno_mode_ok): V2PDImode is ok for accumulators.
1799         * config/bfin/bfin.h (CLASS_MAX_NREGS, HARD_REGNO_NREGS): Handle
1800         V2PDImode.
1801         * config/bfin/predicates.md (const01_operand, vec_shift_operand):
1802         New predicates.
1803         * config/bfin/bfin.md (UNSPEC_MUL_WITH_FLAG, UNSPEC_MAC_WITH_FLAG):
1804         New constants.
1805         (MACFLAG_NONE, MACFLAG_T, MACFLAG_FU, MACFLAG_TFU, MACFLAG_IS,
1806         MACFLAG_IU, MACFLAG_W32, MACFLAG_M, MACFLAG_S2RND, MACFLAG_ISS2,
1807         MACFLAG_IH): Likewise.
1808         (movstricthi_1): Renamed from "*movstricthi".
1809         (load_accumulator, load_accumulator_pair, movsi_insv, insv,
1810         ssaddsi3, sssubsi3, ssnegsi2, signbitssi2, smaxhi3, sminhi3,
1811         abshi2, neghi2, ssneghi2, signbitshi2, movhi_low2high,
1812         movhi_high2high, movhi_low2low, movhi_high2low, movhiv2hi_low,
1813         movhiv2hi_high, composev2hi, movv2hi_hi, movv2hi_hi_low,
1814         movv2hi_hi_high, ssaddhi3, sssubhi3, ssaddv2hi3, sssubv2hi3,
1815         addsubv2hi3, subaddv2hi3, ssaddsubv2hi3, sssubaddv2hi3,
1816         sublohiv2hi3, subhilov2hi3, sssublohiv2hi3, sssubhilov2hi3,
1817         addlohiv2hi3, addhilov2hi3, ssaddlohiv2hi3, ssaddhilov2hi3,
1818         mulhisi_ll, mulhisi_lh, mulhisi_hl, mulhisi_hh, ssnegv2hi2,
1819         ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3, packv2hi,
1820         flag_mulhi, flag_mulhisi_parts, flag_machi, flag_machi_acconly,
1821         flag_macinithi, flag_macinit1hi, flag_mulv2hi, flag_mulv2hi_parts,
1822         flag_macv2hi_parts, flag_macv2hi_parts_acconly,
1823         flag_macinitv2hi_parts, flag_macinit1v2hi_parts): New patterns.
1824
1825         * doc/rtl.texi (ss_ashift): Improve wording.
1826
1827 2006-04-24  Geoffrey Keating  <geoffk@apple.com>
1828
1829         * dwarf2out.c (verify_marks_clear): New.
1830         (prune_unused_types): Call verify_marks_clear initially, not
1831         prune_unmark_dies.
1832
1833 2006-04-24  Bernd Schmidt  <bernd.schmidt@analog.com>
1834
1835         * rtl.def (SS_ASHIFT, SS_NEG): New codes.
1836         * doc/rtl.texi: Document them.
1837         * simplify-rtx.c (simplify_unary_operation,
1838         simplify_binary_operation_1): Don't abort when we see them.
1839
1840 2006-04-24  Mark Mitchell  <mark@codesourcery.com>
1841
1842         Revert:
1843         2006-04-23  Mark Mitchell  <mark@codesourcery.com>
1844         * configure.ac: Completely disregard languages that are not
1845         enabled.
1846         * configure: Regenerated.
1847
1848 2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
1849         Richard Guenther  <rguenther@suse.de>
1850
1851         PR tree-optimization/27236
1852         * tree-inline.c (copy_body_r): Make sure to copy
1853         TREE_THIS_VOLATILE flag.
1854
1855 2006-04-24  Richard Guenther  <rguenther@suse.de>
1856
1857         PR middle-end/26869
1858         * tree-complex.c (update_parameter_components): Don't handle
1859         unused parameters which have no default def.
1860
1861 2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
1862         Richard Guenther  <rguenther@suse.de>
1863
1864         PR tree-optimization/27218
1865         * tree-inline.c (expand_call_inline): Strip useless type
1866         conversions for the return slot address.
1867
1868 2006-04-24  Richard Guenther  <rguenther@suse.de>
1869
1870         * cfgloop.h (struct loops): Remove unused field array.  Reorder
1871         state after num.
1872         (LOOP_PREFETCH): Remove.
1873
1874 2006-04-24  Richard Guenther  <rguenther@suse.de>
1875
1876         PR tree-optimization/22525
1877         * value-prof.c (tree_mod_pow2): Remove unnecessary temporary
1878         variable, adjust types of generated expressions.
1879
1880 2006-04-23  H.J. Lu  <hongjiu.lu@intel.com>
1881
1882         * Makefile.in (c-convert.o): Add dependency on $(TARGET_H)
1883         (tree-vect-patterns.o): Likewise.
1884         (jump.o): Likewise.
1885         (cselib.o): Likewise.
1886         (loop-doloop.o): Likewise.
1887         (regclass.o): Likewise.
1888         (reload1.o): Likewise.
1889         (explow.o): Replace target.h with $(TARGET_H).
1890         (ipa-prop.o): Likewise.
1891         (ipa-cp.o): Likewise.
1892         (ipa-inline.o): Likewise.
1893         (reorg.o): Likewise.
1894         (reg-stack.o): Likewise.
1895
1896 2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>
1897
1898         * tree-tailcall.c (pass_tail_recursion): Use gate_tail_calls too.
1899
1900 2006-04-23  Mark Mitchell  <mark@codesourcery.com>
1901
1902         * print-tree.c (print_node): Print DECL_BIT_FIELD_TYPE.
1903
1904         * configure.ac: Completely disregard languages that are not
1905         enabled.
1906         * configure: Regenerated.
1907
1908         PR c++/26534
1909         * c-common.h (c_build_bitfield_integer_type): Declare.
1910         * c-decl.c (c_build_bitfield_integer_type): Move to ...
1911         * c-common.c (c_build_bitfield_integer_type): ... here.
1912
1913 2006-04-23  Roger Sayle  <roger@eyesopen.com>
1914
1915         PR target/21283
1916         * config/fr30/fr30.md (define_split): Avoid calling gen_lowpart on
1917         a SImode SUBREG of a floating point register after no_new_pseudos.
1918
1919 2006-04-23  Roger Sayle  <roger@eyesopen.com>
1920
1921         * config/fr30/fr30.md (addsi_small_int): Use REGNO_PTR_FRAME_P to
1922         identify potentially eliminable registers to additionally catch
1923         VIRTUAL_INCOMING_ARGS_REGNUM.
1924         (addsi3): Update the conditions on when to use addsi_small_int.
1925
1926 2006-04-23  Roger Sayle  <roger@eyesopen.com>
1927
1928         PR target/16641
1929         * config/fr30/fr30.h (GO_IF_LEGITIMATE_ADDRESS): Check REGNO for
1930         STACK_POINTER_RTX and FRAME_POINTER_RTX instead of comparing the
1931         rtx to stack_pointer_rtx or frame_pointer_rtx directly.
1932
1933 2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>
1934
1935         * fold-const.c (range_predecessor): Use operand_equal_p
1936         as the predicate for equality.
1937         (range_successor): Likewise.
1938
1939 2006-04-22  Kazu Hirata  <kazu@codesourcery.com>
1940
1941         Revert:
1942         * config/soft-fp/op-common.h: Fix a typo.
1943
1944 2006-04-22  Frank Ch. Eigler  <fche@redhat.com>
1945
1946         PR libmudflap/26864
1947         * common.opt (flag_mudflap_threads): Overload flag_mudflap.
1948         * tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.
1949
1950 2006-04-22  Kazu Hirata  <kazu@codesourcery.com>
1951
1952         * config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
1953         Fix comment typos.
1954         * doc/tm.texi: Fix a typo.
1955
1956 2006-04-21  Geoffrey Keating  <geoffk@apple.com>
1957
1958         * dwarf2out.c (struct die_struct): Document that die_sib makes
1959         a circular linked list.
1960         (FOR_EACH_CHILD): New.
1961         (reverse_die_lists): Delete.
1962         (reverse_all_dies): Delete.
1963         (add_dwarf_attr): Correct documentation.
1964         (remove_child_with_prev): New.
1965         (remove_child_TAG): Update for change to die_struct, use
1966         remove_child_with_prev.
1967         (add_child_die): Update for change to die_struct.
1968         (splice_child_die): Use remove_child_with_prev and add_child_die.
1969         (print_die): Use FOR_EACH_CHILD.
1970         (die_checksum): Likewise.
1971         (assign_symbol_names): Likewise.
1972         (output_location_lists): Likewise.
1973         (build_abbrev_table): Likewise.
1974         (calc_die_sizes): Likewise.
1975         (mark_dies): Likewise.
1976         (unmark_dies): Likewise.
1977         (unmark_all_dies): Likewise.
1978         (output_die): Likewise.
1979         (prune_unused_types_mark): Likewise.
1980         (prune_unused_types_walk): Likewise.
1981         (same_die_p): Update for change to die_struct.
1982         (break_out_includes): Likewise.
1983         (prune_unused_types_prune): Likewise.
1984         (add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
1985         (prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
1986         it's already clear.
1987         (dwarf2out_finish): Don't call reverse_all_dies.
1988
1989 2006-04-21  Eric Christopher  <echristo@apple.com>
1990
1991         * df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
1992         in comments and function names.
1993
1994 2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1995
1996         PR c/25875
1997         * c-typeck.c (digest_init): Robustify.
1998
1999         * c-typeck.c (pop_init_level): Simplify.
2000
2001 2006-04-21  Steve Ellcey  <sje@cup.hp.com>
2002
2003         * config/pa/t-pa64: Add dependencies on $(GCC_PASSES).
2004
2005 2006-04-21  Paul Brook  <paul@codesourcery.com>
2006
2007         * config/arm/arm.c (arm_override_options): Error on iWMMXt and
2008         hardware floating point.
2009
2010 2006-04-21  David Edelsohn  <edelsohn@gnu.org>
2011
2012         * config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
2013         NON_FLOAT_REGS.
2014
2015 2006-04-21  Nick Clifton  <nickc@redhat.com>
2016
2017         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
2018         OPT_EXTRA_PARTS.
2019
2020 2006-04-21  Alan Modra  <amodra@bigpond.net.au>
2021
2022         PR target/27230
2023         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
2024         C++ lang type in traceback table for Objective-C++.
2025
2026         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.
2027
2028 2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>
2029
2030         * config/i386/i386.c (asm_preferred_eh_data_format): Reformat.
2031
2032 2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
2033
2034         PR mudflap/26789
2035         * tree-mudflap.c (mudflap_finish_file): Skip function when there
2036         were errors.  Remove check for erroneous objects.
2037
2038 2006-04-20  Jeff Law  <law@redhat.com>
2039
2040         PR tree-optimization/26854
2041         * tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
2042         checking for zero or one use.
2043         * tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
2044         * tree-cfgcleanup.c (merge_phi_nodes): Similarly.
2045         * tree-ssa-reassoc.c (negate_value): Similarly.
2046         (reassociate_bb): Similarly.
2047
2048 2006-04-20  Jakub Jelinek  <jakub@redhat.com>
2049
2050         * c-pretty-print.c (pp_c_direct_abstract_declarator): Print
2051         TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
2052         than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).
2053
2054 2006-04-20  Alan Modra  <amodra@bigpond.net.au>
2055
2056         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
2057         fp regs if the last fp arg doesn't fit in regs.
2058
2059 2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>
2060
2061         PR target/27182
2062         * config/sh/sh.md (movsicc_true+3): Tweak condition for the case
2063         that the last insn has the REG_INC note.
2064
2065 2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
2066             Nathan Sidwell  <nathan@codesourcery.com>
2067
2068         PR c/26774
2069         * stor-layout.c (update_alignment_for_field): Do not align
2070         ERROR_MARK nodes.
2071         (place_union_field): Place union field at the start of the union.
2072         (place_field): Move ERROR_MARK check later, and use the current
2073         allocation position to maintain monotonicity.
2074
2075 2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>
2076
2077         * dominance.c: Include timevar.h.
2078         (calculate_dominance_info): Use TV_DOMINANCE.
2079         * timevar.def (TV_DOMINANCE): New timevar.
2080         * Makefile.in (dominance.o): Add TIMEVAR_H dependency.
2081
2082 2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>
2083
2084         PR rtl-optimization/14261
2085         * ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
2086         move would be an INSV insn.
2087         (noce_process_if_block): Don't optimize if the destination is a
2088         ZERO_EXTRACT which can't be handled by noce_emit_move_insn.
2089
2090 2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>
2091
2092         * config/s390/s390.md: Add comments with the instructions emitted
2093         by an insn pattern if macros are used.
2094
2095 2006-04-19  Alan Modra  <amodra@bigpond.net.au>
2096
2097         PR rtl-optimization/26026
2098         * fold-const.c (fold_binary): Optimize div and mod where the divisor
2099         is a known power of two shifted left a variable amount.
2100
2101 2006-04-18  Geoffrey Keating  <geoffk@apple.com>
2102
2103         * dwarf2out.c (prune_unused_types_update_strings): Don't add strings
2104         to hash table twice when the debug_str section has SECTION_MERGE.
2105
2106 2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>
2107
2108         * config/soft-fp: New directory.  From glibc.
2109         * config/soft-fp/t-softfp: New.
2110         * config/soft-fp/README: New.
2111         * mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
2112         * Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
2113         (libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
2114         (LIBGCC_DEPS): Add $(SFP_MACHINE).
2115         * config.gcc: Use rs6000/t-fprules-fpbit or
2116         rs6000/t-fprules-softfp and soft-fp/t-softfp together with
2117         rs6000/t-fprules.
2118         * config/rs6000/sfp-machine.h: New.  Based on glibc.
2119         * config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
2120         New.
2121         * config/rs6000/t-fprules: Remove fp-bit rules.
2122         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
2123         * config/rs6000/t-linux64: Likewise.  Remove duplicates from
2124         LIB2FUNCS_EXTRA.  Remove fp-bit rules.
2125         (softfp_wrap_start, softfp_wrap_end): New.
2126
2127 2006-04-18  DJ Delorie  <dj@redhat.com>
2128
2129         * config/m32c/m32c.h (PTRDIFF_TYPE): Define.
2130
2131 2006-04-18  Devang Patel  <dpatel@apple.com>
2132
2133         * doc/invoke.texi (-Wuninitialized): Clarify -O connection.
2134
2135 2006-04-18  Nick Clifton  <nickc@redhat.com>
2136
2137         * config/sh/t-symbian: Add rule to build sh-c.o
2138         * config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
2139         of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
2140         (sh_symbian_encode_section_info): Likewise.
2141
2142 2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>
2143
2144         * builtins.c (expand_builtin_strcmp): Cover label definition of
2145         do_libcall with HAVE_cmpstrnsi.
2146
2147 2006-04-18  Kazu Hirata  <kazu@codesourcery.com>
2148
2149         * function.c (temp_slots_at_level, max_slot_level): Use VEC
2150         instead of VARRAY.
2151         * function.h (temp_slot_p): New.
2152         (function): Change the type of x_used_temp_slots to
2153         VEC(temp_slot_p,gc) *.
2154
2155 2006-04-18  Nick Clifton  <nickc@redhat.com>
2156
2157         * config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
2158         flag_strength_reduce.
2159
2160         * doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.
2161
2162 2006-04-18  Paolo Bonzini  <bonzini@gnu.org>
2163
2164         PR target/27117
2165
2166         Partial revert of revision 112637
2167         2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
2168                     Dale Johannesen  <dalej@apple.com>
2169
2170         PR target/19653
2171         * regclass.c (struct reg_pref): Update documentation.
2172         (regclass): Set prefclass to NO_REGS if memory is the best option.
2173         (record_reg_classes): Cope with a prefclass set to NO_REGS.
2174
2175 2006-04-18  Paolo Bonzini  <bonzini@gnu.org>
2176
2177         PR tree-optimization/26821
2178         * tree-ssa-math-opts.c (get_constant_one): New.
2179         (insert_reciprocals): Use it.
2180
2181 2006-04-17  Geoffrey Keating  <geoffk@apple.com>
2182
2183         * dwarf2out.c (free_AT): Delete.
2184         (remove_AT): Update string ref counts.
2185         (remove_child_TAG): Don't call free_die.
2186         (free_die): Delete.
2187         (break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
2188         or DW_TAG_GNU_EINCL.
2189         (prune_unused_types_walk_attribs): Reset string refcounts.
2190         (prune_unused_types_update_strings): New.
2191         (prune_unused_types_prune): Don't make unnecessary stores.  Don't
2192         call free_die.  Do call prune_unused_types_update_strings.
2193         (prune_unused_types): Empty debug_str_hash.
2194
2195 2006-04-17  Roger Sayle  <roger@eyesopen.com>
2196
2197         * expr.c (expand_assignment): Optimize away no-op moves where the
2198         source and destination are equal and have no side-effects.
2199
2200 2006-04-17  Richard Guenther  <rguenther@suse.de>
2201
2202         PR target/26826
2203         * reload.c (push_reload): Guard calls to get_secondary_mem
2204         for memory subregs.
2205
2206 2006-04-16  Kazu Hirata  <kazu@codesourcery.com>
2207
2208         * alias.c (reg_base_value, old_reg_base_value): Change the
2209         type to VEC(rtx,gc) *.
2210         (REG_BASE_VALUE, find_base_value, record_set,
2211         init_alias_analysis): Use VEC instead of VARRAY.
2212
2213         * alias.c (alias_sets): Change the type to
2214         VEC(alias_set_entry,gc) *.
2215         (get_alias_set_entry, new_alias_set, record_alias_subset): Use
2216         VEC instead of VARRAY.
2217         (last_alias_set): Remove.
2218
2219         * cgraph.h (cgraph_edge_p): New.
2220         Update the prototype of cgraph_function_versioning.
2221         * cgraphunit.c (cgraph_copy_node_for_versioning,
2222         cgraph_function_versioning): Use VEC instead of VARRAY.
2223         * ipa-cp.c (ipcp_insert_stage): Likewise.
2224
2225 2006-04-16  Roger Sayle  <roger@eyesopen.com>
2226
2227         PR target/26961
2228         * fold-const.c (fold_ternary): When converting "A ? B : C" into either
2229         "A op B" or "A op C", we may need to convert A to the type of B and C.
2230
2231 2006-04-16  Adam Nemet  <anemet@caviumnetworks.com>
2232
2233         * target.h (struct gcc_target): Add mode_rep_extended.
2234         * rtlanal.c (num_sign_bit_copies_in_rep): New global.
2235         (init_num_sign_bit_copies_in_rep): Initialize it using
2236         mode_rep_extended.
2237         (truncate_to_mode): Use it.
2238         (init_rtlanal): Call init_num_sign_bit_copies_in_rep.
2239         * targhooks.h (default_mode_rep_extended): Declare it.
2240         * targhooks.c (default_mode_rep_extended): Define it.
2241         * target-def.h (TARGET_MODE_REP_EXTENDED): New macro.  Default to
2242         default_mode_rep_extended.
2243         (TARGET_INITIALIZER): Include it.
2244         * doc/tm.texi (Misc): Document it.
2245         * config/mips/mips.c (TARGET_TRUNCATED_TO_MODE): Override it.
2246         (mips_truncated_to_mode): New function.
2247
2248 2006-04-16  Roger Sayle  <roger@eyesopen.com>
2249
2250         PR middle-end/25474
2251         * expr.c (compress_float_constant): Copy the narrow constant into
2252         a new pseudo before extending it to its final width.
2253
2254 2006-04-16  Roger Sayle  <roger@eyesopen.com>
2255             Andrew Pinski  <pinskia@gcc.gnu.org>
2256             Dale Johannesen  <dalej@apple.com>
2257
2258         PR target/24076
2259         * config/i386/i386.c (ix86_expand_vector_init_duplicate): Add
2260         special case code to implement V8HImode and V16QImode with SSE2.
2261
2262 2006-04-15  Roger Sayle  <roger@eyesopen.com>
2263
2264         * config/i386/i386.c (ix86_va_start): Ensure all integer constant
2265         trees are constructed with a suitable tree type.
2266
2267 2006-04-15  Roger Sayle  <roger@eyesopen.com>
2268
2269         * tree.c (integer_zerop): Ignore TREE_CONSTANT_OVERFLOW.
2270         (integer_onep): Likewise.
2271         (integer_all_onesp): Likewise.
2272         (integer_pow2p): Likewise.
2273         (integer_nonzerop): Likewise.
2274         (real_zerop): Likewise.
2275         (real_onep): Likewise.
2276         (real_twop): Likewise.
2277         (real_minus_onep): Likewise.
2278         (int_size_in_bytes): Likewise.
2279         (host_integerp): Likewise.
2280
2281 2006-04-15  Kazu Hirata  <kazu@codesourcery.com>
2282
2283         * cfgcleanup.c, config/dfp-bit.c, expr.c, fold-const.c,
2284         jump.c, mips-tfile.c, omp-low.c, sched-int.h,
2285         tree-ssa-loop-prefetch.c, tree-vrp.c: Fix comment typos.
2286
2287         * tree-ssa-structalias.h (alias_info): Remove num_references.
2288
2289 2006-04-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2290
2291         * pa.md (output_bb patterns): Shorten long branch alternatives by 4.
2292         (output_bvb patterns): Likewise.
2293         * pa.c (output_bb): Use 'bb' insn for long branch case.
2294         (output_bvb): Likewise use '{bvb|bb}' for long branch case.
2295         (output_dbra): Use '{comb|cmpb}' for long branch case for alternative
2296         1.  Correct length operand for alternatives 1 and 2.
2297         (output_movb): Use '{comb|cmpb}' for long branch case for alternatives
2298         1, 2 and 3.  Correct length operand for alternatives 1, 2 and 3.
2299
2300 2006-04-14  Roger Sayle  <roger@eyesopen.com>
2301
2302         * tree-cfg.c (make_edges, make_omp_sections_edges, move_stmt_r,
2303         is_ctrl_altering_stmt): Reinstate RTH's changes from r112935 that
2304         were accidentally reverted by r112959.
2305
2306 2006-04-15  Jakub Jelinek  <jakub@redhat.com>
2307
2308         PR middle-end/26823
2309         * except.h (eh_region_outermost): New prototype.
2310         * except.c (eh_region_outermost): New function.
2311         * tree-cfg.c (find_outermost_region_in_block): Use it.
2312
2313 2006-04-14  Kazu Hirata  <kazu@codesourcery.com>
2314
2315         * local-alloc.c (rest_of_handle_local_alloc): Use VEC instead
2316         of VARRAY.
2317         * reload1.c (reg_equiv_memory_loc_varray): Rename to
2318         reg_equiv_memory_loc_vec.  Change the type to VEC(rtx,gc) *.
2319         (init_reload, reload): Use VEC instead of VARRAY.
2320         * reload.h: Update the prototype for
2321         reg_equiv_memory_loc_varray.
2322
2323 2006-04-14  Alexey Starovoytov  <alexey.starovoytov@sun.com>
2324             Eric Botcazou  <ebotcazou@libertysurf.fr>
2325
2326         * config/sparc/sparc.c (emit_and_preserve): Allocate space for the
2327         register save area.
2328
2329 2005-04-13  Uros Bizjak  <uros@kss-loka.si>
2330
2331         PR middle-end/27134
2332         * builtins.c (expand_builtin_int_roundingfn): Use expand_normal()
2333         to expand fallback builtin function call.
2334
2335 2006-04-14  Alan Modra  <amodra@bigpond.net.au>
2336
2337         PR middle-end/27095
2338         * builtins.c: (expand_builtin_memset): Stabilize args before expansion
2339         and emit libcall here in case the builtin fails.
2340         (expand_builtin_strcmp): Always emit the libcall here on failure.
2341
2342 2006-04-14  Kazu Hirata  <kazu@codesourcery.com>
2343
2344         * basic-block.h (REG_BASIC_BLOCK): Use VEC instead of VARRAY.
2345         * flow.c (reg_n_info): Change the type to
2346         VEC(reg_info_p,heap) *.
2347         * regclass.c (allocate_reg_info, free_reg_info): Use VEC
2348         instead of VARRAY.
2349         * regs.h (reg_info_p): New.
2350         (REG_N_REFS, REG_FREQ, REG_N_SETS, REG_N_DEATHS,
2351         REG_N_CALLS_CROSSED, REG_N_THROWING_CALLS_CROSSED,
2352         REG_LIVE_LENGTH, REGNO_FIRST_UID, REGNO_LAST_UID): Use VEC
2353         instead of VARRAY.
2354
2355 2006-04-13  Eric Botcazou  <ebotcazou@adacore.com>
2356
2357         * params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
2358         defaulting to 100.
2359         * params.h (MAX_SCHED_READY_INSNS): New macro.
2360         * haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
2361         past MAX_SCHED_READY_INSNS during the first scheduling pass.
2362         (schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
2363         the ready list for 1 cycle during the first scheduling pass.
2364         * doc/invoke.texi (--param): New parameter max-sched-ready-insns.
2365
2366 2006-04-13  Richard Henderson  <rth@redhat.com>
2367
2368         PR libgomp/26651
2369         * gimple-low.c (lower_omp_directive): Remove dead code.
2370         (lower_stmt): Do nothing except for openmp, except for OMP_PARALLEL.
2371         * gimplify.c (gimplify_expr): Update for OMP_RETURN, OMP_CONTINUE.
2372         * omp-low.c (struct omp_region): Move to tree-flow.h.
2373         (root_omp_region): Export.
2374         (omp_regions, lookup_omp_region): Remove.
2375         (determine_parallel_type): Update for struct omp_region changes.
2376         (dump_omp_region): Dump regions with block numbers.
2377         (new_omp_region): Take type and block instead of stmt; malloc
2378         instead of ggc.
2379         (free_omp_region_1, free_omp_regions): New.
2380         (expand_parallel_call): Take entry_stmt as argument; update for
2381         changes to omp_region.
2382         (remove_exit_barrier): Rewrite to update OMP_RETURN_NOWAIT.
2383         (remove_exit_barriers): New.
2384         (expand_omp_parallel): Update for struct omp_region changes.
2385         (expand_omp_synch): Likewise.
2386         (expand_omp): Likewise.
2387         (expand_omp_for_static_nochunk): Likewise; update for OMP_CONTINUE.
2388         (expand_omp_for_static_chunk): Likewise.
2389         (expand_omp_for): Likewise.
2390         (expand_omp_for_generic): Likewise; emit the proper GOMP_loop_end call.
2391         (expand_omp_sections): Similarly, with GOMP_sections_end.
2392         (expand_omp_single): New.
2393         (build_omp_regions_1): Update for OMP_CONTINUE.
2394         (execute_expand_omp): Call remove_exit_barriers, free_omp_regions.
2395         (lower_omp_sections): Expand with OMP_CONTINUE, do not collect
2396         OMP_SECTIONS_SECTIONS.
2397         (lower_omp_single_simple): Don't emit barrier here.
2398         (lower_omp_single_copy): Likewise.
2399         (lower_omp_single): Fix bindings, and lower to straightline now.
2400         (lower_omp_master, lower_omp_ordered): Likewise.
2401         (lower_omp_critical): Likewise.
2402         (lower_omp_for): Likewise.  Emit OMP_CONTINUE.
2403         * tree-cfg.c (make_edges): Collect an omp_region tree, use it for
2404         omp edges, free it afterward.
2405         (make_omp_sections_edges): Remove.
2406         (is_ctrl_altering_stmt): Don't bother checking flag_openmp.
2407         (move_stmt_r): Handle OMP_CONTINUE.
2408         * tree-flow.h (struct omp_region): Move from omp-low.c.  Switch
2409         statement pointers to basic blocks.  Add type member.
2410         (root_omp_region, new_omp_region, free_omp_regions): Declare.
2411         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN, OMP_CONTINUE.
2412         * tree-inline.c (estimate_num_insns_1): Likewise.
2413         * tree-pretty-print.c (dump_generic_node): Likewise.
2414         * tree-ssa-operands.c (get_expr_operands): Likewise.
2415         * tree.def (OMP_SECTIONS): Remove OMP_SECTIONS_SECTIONS operand.
2416         (OMP_RETURN): Rename from OMP_RETURN_EXPR.
2417         (OMP_CONTINUE): New.
2418         * tree.h (OMP_DIRECTIVE_P): Add OMP_CONTINUE.
2419         (OMP_SECTIONS_SECTIONS): Remove.
2420         (OMP_SECTION_LAST): New.
2421         (OMP_RETURN_NOWAIT): New.
2422
2423 2006-04-13  Roger Sayle  <roger@eyesopen.com>
2424
2425         * fold-const.c (native_encode_vector, native_interpret_real):
2426         Correct obvious mistakes in the previous check-in.
2427
2428 2006-04-13  Roger Sayle  <roger@eyesopen.com>
2429
2430         * fold-const.c (native_encode_expr): New function to encode
2431         the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
2432         or VECTOR_CST into a specified buffer.
2433         (native_encode_int): New function.
2434         (native_encode_real): New function.
2435         (native_encode_complex): New function.
2436         (native_encode_vector): New function.
2437         (native_interpret_expr): Inverse of native_encode_expr to convert
2438         a target representation into an INTEGER_CST, REAL_CST etc...
2439         (native_interpret_int): New function.
2440         (native_interpret_real): New function.
2441         (native_interpret_complex): New function.
2442         (native_interpret_vector): New function.
2443         (fold_view_convert_expr): New function to constant fold/evaluate
2444         a VIEW_CONVERT_EXPR of a suitable constant expression.
2445         (fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
2446         Change call of build1 to fold_build1 when constructing a
2447         VIEW_CONVERT_EXPR.
2448
2449 2006-04-13  Paolo Bonzini  <bonzini@gnu.org>
2450             Ulrich Weigand  <uweigand@de.ibm.com>
2451
2452         PR target/27006
2453         * config/rs6000/rs6000.h (EASY_VECTOR_15_ADD_SELF): Require n
2454         to be even.
2455
2456 2006-04-13  Alan Modra  <amodra@bigpond.net.au>
2457
2458         PR target/26459
2459         * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
2460         optimize to lo_sum for DFmode if !TARGET_FPRS.
2461
2462 2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
2463
2464         * tree-ssa-alias.c (set_initial_properties, init_alias_info,
2465         delete_alias_info, compute_flow_sensitive_aliasing,
2466         group_aliases): Use VEC instead of VARRAY.
2467         * tree-ssa-structalias.c (update_alias_info): Likewise.
2468         * tree-ssa-structalias.h (alias_info): Change the type of
2469         processed_ptrs to VEC(tree,heap) *.
2470
2471 2006-04-12  J"orn Rennecke <joern.rennecke@st.com>
2472
2473         PR target/27060
2474         * config/sh/lib1funcs.h: New file, broken out of:
2475         * config/sh/lib1funcs.asm.
2476         * config/sh/lib1funcs.h (DR00, DR01, DR20, DR21, DR40, DR41):
2477         New macros.
2478         * config/sh/lib1funcs.asm (udivsi3_i4): Use them.
2479         * config/sh/lib1funcs-Os-4-200.asm: New file.
2480         * config/sh/embed-elf.h (LIBGCC_SPEC): Use -lgcc-Os-4-200.
2481         * config/sh/t-sh (OPT_EXTRA_PARTS): New variable.
2482         (EXTRA_MULTILIB_PARTS): Include it.
2483         ($(T)sdivsi3_i4i-Os-4-200.o): New rule.
2484         ($(T)udivsi3_i4i-Os-4-200.o, $(T)libgcc-Os-4-200.a): Likewise.
2485         * config/sh/t-superh (EXTRA_MULTILIB_PARTS): Include OPT_EXTRA_PARTS.
2486         * config/sh/sh.h (OVERRIDE_OPTIONS): Recognize -mdiv=call-table for
2487         TARGET_SH2.
2488
2489 2006-04-12  Kazu Hirata  <kazu@codesourcery.com>
2490
2491         * Makefile.in (TREE_SSA_LIVE_H): Add vecprim.h.
2492         * tree-ssa-live.c (tpa_init, tpa_remove_partition, tpa_delete,
2493         tpa_compact, root_var_init, type_var_init): Use VEC instead of
2494         VARRAY.
2495         * tree-ssa-live.h: Include vecprim.h.
2496         (tree_partition_associator_d): Change the type of
2497         first_partition to VEC(int,heap) *.
2498         (tpa_first_partition): Use VEC instead of VARRAY.
2499
2500         * Makefile.in (GTFILES): Move functions.h after tree.h.
2501         * function.c (reset_block_changes, record_block_change,
2502         check_block_change, free_block_changes): Use VEC instead of
2503         VARRAY.
2504         * function.h (function): Change the type of
2505         ib_boundaries_block to VEC(tree,gc) *.
2506         * tree-inline.c (copy_cfg_body): Initialize
2507         ib_boundaries_block to NULL instead of (varray_type) 0.
2508
2509 2006-04-12  Roger Sayle  <roger@eyesopen.com>
2510
2511         * expr.c (emit_group_store): Correct operand order in call to
2512         subreg_lowpart_offset.  Always create paradoxical SUBREGs with
2513         a SUBREG_BYTE of zero.
2514
2515 2006-04-12  Richard Guenther  <rguenther@suse.de>
2516
2517         * profile.c (compute_branch_probabilities): Remove code
2518         encapsulated in !ir_type (), which are remanents of the
2519         removed RTL profiling code.
2520         * rtl-profile.c: Remove.
2521
2522 2006-04-12  Alan Modra  <amodra@bigpond.net.au>
2523
2524         * config/rs6000/rs6000.c (rs6000_mixed_function_arg): Update
2525         magic NULL_RTX comment.
2526         (function_arg): Store entire fp arg to mem if any part should go
2527         on stack.
2528         (rs6000_arg_partial_bytes): Adjust for above change.
2529
2530 2006-04-11  Roger Sayle  <roger@eyesopen.com>
2531
2532         * dwarf2out.c (output_call_frame_info): Create debug_frame_section
2533         if it hasn't been initialized by dwarf2out_init.
2534
2535 2006-04-11  John David Anglin  <dava.anglin@nrc-cnrc.gc.ca>
2536
2537         * pa.md (MAX_12BIT_OFFSET, MAX_17BIT_OFFSET): Define and use new
2538         symbolic constants in branch patterns.
2539
2540 2006-04-11  Roger Sayle  <roger@eyesopen.com>
2541
2542         * caller-save.c: #include "addresses.h" after #include "tm_p.h".
2543
2544 2006-04-11  Richard Sandiford  <richard@codesourcery.com>
2545
2546         PR rtl-optimization/27073
2547         * gcse.c (try_replace_reg): Revert last change.  Continue to search
2548         for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
2549         on the former.
2550
2551 2006-04-11  Eric Botcazou  <ebotcazou@libertysurf.fr>
2552
2553         * config/sparc/sparc.c (function_arg_slotno) <BLKmode>: Handle
2554         aggregate types other than record and union types.
2555         (function_arg): Likewise.
2556         (function_arg_pass_by_reference): In 64-bit mode, return 0 for
2557         small arrays.
2558         (function_value): In 64-bit mode, return objects that require it
2559         in FP registers.
2560
2561 2006-04-11  Roger Sayle  <roger@eyesopen.com>
2562
2563         * dwarf2out.c (premark_used_types): Remove problematic prototype.
2564
2565 2006-04-11  Jakub Jelinek  <jakub@redhat.com>
2566
2567         * gcc.c (LINK_COMMAND_SPEC): Move link_gomp after %o.
2568
2569 2006-04-03  Jeff Law  <law@redhat.com>
2570
2571         PR/27087
2572         * tree-ssa-copy.c (may_propagate_copy): Test flow sensitive
2573         alias information too.
2574
2575 2006-04-10  Mike Frysinger  <vapier@gentoo.org>
2576
2577         * Makefile.in (gcc-cross): Add $(exeext) to target name.
2578
2579 2006-04-10  Aldy Hernandez  <aldyh@redhat.com>
2580
2581         PR/21391
2582         * dwarf2out.c (struct die_struct): Add die_perennial_p field.
2583         (premark_used_types_helper): New.
2584         (premark_used_types): New.
2585         (gen_subprogram_die): Call premark_used_types.
2586         (prune_unused_types_walk): Do not prune perennial dies.
2587         * function.c (used_types_insert): New.
2588         * function.h (struct function): Add used_types_hash field.
2589         (used_types_insert): Add prototype.
2590         * Makefile.in (FUNCTION_H): Depend on HASHTAB_H.
2591         * c-parser.c (c_parser_cast_expression): Save casted types in used
2592         types hash table.
2593
2594 2006-04-11  Mark Mitchell  <mark@codesourcery.com>
2595
2596         PR target/26459
2597         * config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Test
2598         rs6000_explicit_options.float_gprs.
2599
2600 2006-04-10  Roger Sayle  <roger@eyesopen.com>
2601
2602         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Renamed
2603         from ix86_expand_vector_init_low_nonzero.  Take an additional
2604         one_var argument indicating which element is non-zero.  Support
2605         one_var != 0 for V4SFmode and V4SImode by permuting the result.
2606         (ix86_expand_vector_init): Call ix86_expand_vector_init_one_nonzero
2607         with one_var instead of ix86_expand_vector_init_low_nonzero.
2608
2609 2006-04-10  Kazu Hirata  <kazu@codesourcery.com>
2610
2611         * Makefile.in (tree-into-ssa.o, tree-outof-ssa.o,
2612         tree-ssa-live.o, tree-ssa-alias.o, function.o, df-problems.o,
2613         global.o, cfglayout.o, lambda-code.o, reg-stack.o,
2614         build/genextract.o): Depend on vecprim.h.
2615         * cfglayout.c, df-problems.c, function.c, genextract.c,
2616         global.c, lambda-code.c, reg-stack.c, tree-into-ssa.c,
2617         tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Include
2618         vecprim.h.
2619         * vecprim.h: New.
2620
2621 2006-04-10  Geoffrey Keating  <geoffk@apple.com>
2622
2623         * dwarf2out.c (struct dw_attr_struct): Remove dw_attr_next.
2624         Declare VECs of this type.
2625         (struct die_struct): Make field die_attr a VEC of dw_attr_struct.
2626         (remove_children): Delete.
2627         (add_dwarf_attr): Use VEC routines.
2628         (add_AT_flag): Update for changes to add_dwarf_attr.
2629         (add_AT_int): Likewise.
2630         (add_AT_unsigned): Likewise.
2631         (add_AT_long_long): Likewise.
2632         (add_AT_vec): Likewise.
2633         (add_AT_string): Likewise.
2634         (add_AT_die_ref): Likewise.
2635         (add_AT_fde_ref): Likewise.
2636         (add_AT_loc): Likewise.
2637         (add_AT_loc_list): Likewise.
2638         (add_AT_addr): Likewise.
2639         (add_AT_lbl_id): Likewise.
2640         (add_AT_lineptr): Likewise.
2641         (add_AT_macptr): Likewise.
2642         (add_AT_offset): Likewise.
2643         (add_AT_range_list): Likewise.
2644         (get_AT): Use VEC_iterate.
2645         (remove_AT): Use VEC_ordered_remove.
2646         (free_die): Fold remove_children into here; have it use VEC_iterate.
2647         (print_die): Use VEC_iterate on attrs.
2648         (reverse_die_lists): Don't reverse attr lists.
2649         (die_checksum): Use VEC_iterate on attrs.
2650         (same_die_p): Likewise.
2651         (output_location_lists): Likewise.
2652         (build_abbrev_table): Likewise.
2653         (size_of_die): Likewise.
2654         (unmark_all_dies): Likewise.
2655         (output_abbrev_section): Likewise.
2656         (output_die): Likewise.
2657         (prune_unused_types_walk_attribs): Likewise.
2658
2659 2006-04-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
2660
2661         * doc/install.texi (*-*-solaris2*): Point to the configure page.
2662
2663 2006-04-10  Jakub Jelinek  <jakub@redhat.com>
2664
2665         PR debug/27057
2666         * dwarf2out.c (is_symbol_die): Return true also for namespaces.
2667
2668 2006-04-09  Roger Sayle  <roger@eyesopen.com>
2669
2670         * expr.c (store_constructor): Don't bother clearing target if
2671         we're about to assign a vector to it using vec_init_optab.
2672
2673 2006-04-10 Daniel Berlin  <dberlin@dberlin.org>
2674
2675         * tree-ssa-alias.c (lhs_may_store_to): New function.
2676         (recalculate_used_alone): Handle LHS of calls.
2677
2678 2006-04-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2679
2680         PR target/27034
2681         PR target/26508
2682         * config.gcc (hppa*64*-*-hpux11*): Add 'libgcc_stub.a' to extra_parts.
2683         * pa64-hpux.h (LIB_SPEC): Correct typo.  Don't append milli.a.
2684         (LINK_GCC_C_SEQUENCE_SPEC): Define.  Append milli.a here.
2685         (PA_CXA_FINALIZE_STUB, PA_JV_REGISTERCLASSES_STUB): Delete defines.
2686         (PA_INIT_FINI_HACK): Rename to PA_CRTBEGIN_HACK.
2687         (PA_CRTBEGIN_HACK): Ensure __do_global_ctors_aux is placed in text
2688         section.  Delete PA_CXA_FINALIZE_STUB and PA_JV_REGISTERCLASSES_STUB
2689         stubs.  Add ".align 8" directives before all ".dword" directives.
2690         (GTHREAD_USE_WEAK): Revise comment.
2691         (TARGET_ATTRIBUTE_WEAK): Define.
2692         * pa/t-pa64 (LIBGCCSTUB_OBJS): Add new rules for stublib.c, rfi-stub.o,
2693         dfi-stub.o, cxaf-stub.o and jvrc-stub.o.
2694         * stublib.c: New file.
2695
2696         PR target/26743
2697         PR target/11254
2698         PR target/10274
2699         * pa.md (cbranch patterns): Revise arguments used in calls to
2700         output_cbranch, output_bb and output_bvd.  Add long branch length
2701         attributes.
2702         (fbranch patterns): Handle long branches.
2703         (jump): Revise length check.  Revise arguments for output_lbranch call.
2704         Add long branch length attributes.
2705         (decrement_and_branch_until_zero): Add long branch length attributes.
2706         (output_movb, output_parallel_addb and output_parallel_movb patterns):
2707         Likewise.  Revise arguments for output_parallel_addb and
2708         output_parallel_movb calls.
2709         * pa-protos.h (output_cbranch, output_lbranch, output_bb, output_bvb,
2710         output_parallel_movb and output_parallel_addb): Update prototypes.
2711         * pa.c (output_cbranch): Revise arguments.  Correct handling of
2712         nullification in long branches.
2713         (output_lbranch): Add new argument to control extraction of delay
2714         instruction.
2715         (output_bb): Handle long branches.
2716         (output_bvb, output_dbra, output_movb, output_parallel_movb,
2717         output_parallel_addb): Likewise.
2718
2719 2006-04-09  Richard Sandiford  <richard@codesourcery.com>
2720
2721         PR rtl-optimization/27073
2722         * gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
2723         not REG_EQUIVs.
2724
2725 2006-04-08  Daniel Berlin  <dberlin@dberlin.org>
2726
2727         * tree.h (tree_memory_tag): Add old_used_alone.
2728         (SMT_OLD_USED_ALONE): New macro.
2729         * tree-ssa-alias.c (recalculate_used_alone): Stop
2730         marking things for renaming unnecessarily.
2731
2732 2006-04-08  Kazu Hirata  <kazu@codesourcery.com>
2733
2734         * builtins.c, config/arm/arm.c, config/i386/cygwin.h,
2735         config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h,
2736         config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c,
2737         haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h,
2738         sched-rgn.c, tree-inline.h, tree-ssa-dom.c,
2739         tree-ssa-loop-prefetch.c, tree-ssa-operands.c,
2740         tree-vect-patterns.c, tree-vrp.c: Fix comment typos.  Follow
2741         spelling convensions.
2742         * config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi,
2743         doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment
2744         typos.  Follow spelling conventions.
2745
2746 2006-04-07  DJ Delorie  <dj@redhat.com>
2747
2748         * config/m32c/m32c.c (m32c_function_arg): Structures are always
2749         passed on the stack.
2750         (m32c_init_cumulative_args): When a function returns a structure,
2751         always pass the pointer to that return area on the stack.
2752         (m32c_function_arg_advance): Don't increment the parameter number
2753         if we're processing the returned structure pointer.
2754         (pushm_info): Reverse order of registers.
2755
2756 2006-04-07  Sebastian Pop  <pop@cri.ensmp.fr>
2757
2758         * tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,
2759         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
2760         number_of_iterations_le, number_of_iterations_cond, find_loop_niter,
2761         estimate_numbers_of_iterations_loop): Use build_int_cst instead of
2762         build_int_cst_type.
2763         * tree-chrec.c (chrec_fold_multiply_poly_poly,
2764         chrec_fold_multiply): Same.
2765         * tree-ssa-loop-ivopts.c (strip_offset_1, force_expr_to_var_cost,
2766         force_expr_to_var_cost): Same.
2767         * tree-mudflap.c (mf_xform_derefs_1): Same.
2768         * tree-ssa-loop-prefetch.c (idx_analyze_ref): Same.
2769
2770 2006-04-07  David Edelsohn  <edelsohn@gnu.org>
2771
2772         * config/rs6000/rs6000.c (rs6000_rtx_costs) <CONST_DOUBLE>: Do not
2773         treat CONST_DOUBLE as INTVAL.  and64_2_operands require an extra
2774         insn.
2775
2776 2006-04-07  Jan Hubicka  <jh@suse.cz>
2777
2778         * ipa-inline.c (cgraph_early_inlining): Collect garbage.
2779
2780 2006-04-07  Richard Guenther  <rguenther@suse.de>
2781
2782         PR tree-optimization/26135
2783         * tree-ssa-copy.c (stmt_may_generate_copy): Handle memory
2784         loads for store copy-prop.
2785         (copy_prop_visit_stmt): Likewise.
2786
2787 2006-04-05  Robert Millan  <robertmh@gnu.org>
2788
2789         * config/i386/linux.h: Add a comment to mark macros that are
2790         being overriden in config/k*bsd-gnu.h.
2791         * config/kfreebsd-gnu.h: Redefine GLIBC_DYNAMIC_LINKER instead of
2792         DYNAMIC_LINKER.
2793         * config/knetbsd-gnu.h: Ditto.
2794
2795 2006-04-06  Jan Hubicka  <jh@suse.cz>
2796
2797         PR profile/20815
2798         PR profile/26399
2799         * coverage.c (coverage_checksum_string): Reorganize loop to not read
2800         after buffer.
2801
2802 2006-04-06  Mike Stump  <mrs@apple.com>
2803
2804         * builtins.c (expand_builtin_longjmp):Use #ifdef instead of #if
2805         for HAVE_nonlocal_goto to be consistent.
2806         (expand_builtin_nonlocal_goto): Likewise.
2807         (expand_builtin_strcmp): Use #ifdef instead of #if
2808         for HAVE_cmpstrnsi to be consistent.
2809
2810 2006-04-05  DJ Delorie  <dj@redhat.com>
2811
2812         * config/m32c/m32c.h (INCOMING_FRAME_SP_OFFSET): Adjust for m16c
2813         vs m32c.
2814
2815 2006-04-05  Bernd Schmidt  <bernd.schmidt@analog.com>
2816
2817         * config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
2818         got-relative addressing for anything but SImode.
2819
2820         * config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
2821         even if the calling function doesn't modify them.
2822
2823 2006-04-05  Richard Guenther  <rguenther@suse.de>
2824
2825         PR tree-optimization/26919
2826         * ipa-inline.c (cgraph_decide_inlining_incrementally): Fix argument
2827         to cgraph_estimate_size_after_inlining.
2828
2829 2006-04-05  Alan Modra  <amodra@bigpond.net.au>
2830
2831         * reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.
2832
2833 2006-04-05  Sebastian Pop  <pop@cri.ensmp.fr>
2834
2835         PR tree-optimization/26996
2836         * tree-scalar-evolution.c (analyze_scalar_evolution_1): Don't analyze
2837         VECTOR_TYPE variables.
2838
2839 2006-04-05  Richard Guenther  <rguenther@suse.de>
2840
2841         PR tree-optimization/26763
2842         * fold-const.c (fold_comparison): Move folding of
2843         PTR + CST CMP PTR + CST ...
2844         (fold_binary): ... here.  Fold only for EQ_EXPR and NE_EXPR.
2845
2846 2006-04-05  Gerald Pfeifer  <gerald@pfeifer.com>
2847
2848         * doc/install.texi (Prerequisites): Refine some wording on
2849         bootstrapping and ksh.
2850         Move the version numbers of DejaGnu here from the testing section
2851         and fix casing of names.
2852         Fix markup and clarify wording for autogen requirements.
2853         Refer to GCJ instead of just java.
2854         Refer to SVN instead of CVS.
2855         Describe diffutils as useful instead of necessary.
2856         (Downloading the source): Refer to SVN instead of CVS.
2857         Adjust a link to our web site accordingly.
2858         (Configuration): Fix casing of Bison.
2859         (Building): Refer to SVN instead of CVS.
2860         Fix a sentence on the use of Bison and remove duplicate (and
2861         incorrect) version number of Bison requirement.
2862         Remove one redundant list of packages needed for building.
2863         (Specific): Avoid reference to CVS.
2864
2865 2006-04-04  Eric Christopher  <echristo@apple.com>
2866
2867         * config/rs6000/rs6000.c (TARGET_MS_BITFIELD_LAYOUT_P): Define.
2868         (TARGET_USE_MS_BITFIELD_LAYOUT): Ditto.
2869         (rs6000_handle_struct_attribute): New.
2870         (rs6000_ms_bitfield_layout_p): Ditto.
2871
2872 2006-04-04  Geoffrey Keating  <geoffk@apple.com>
2873
2874         * config/darwin-crt3.c (atexit): Pass &__dso_handle rather than
2875         NULL for dso parameter to atexit_common.
2876
2877 2006-04-04  Eric Christopher  <echristo@apple.com>
2878
2879         * config/i386/i386.c (machopic_output_stub): Output \t
2880         between instructions and operands.
2881
2882 2006-04-04  David Edelsohn  <edelsohn@gnu.org>
2883
2884         * config/rs6000/rs6000.c (num_insns_constant_wide): Change
2885         satisfies_constraint_[IL] to explicit tests on value.
2886
2887 2006-04-04  Sebastian Pop  <pop@cri.ensmp.fr>
2888
2889         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
2890         set_nb_iterations_in_loop): Use build_int_cst instead of
2891         build_int_cst_type.
2892         * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Use
2893         build_int_cst instead of convert.
2894
2895 2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>
2896
2897         * doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
2898         new value 2 for incoming.
2899         * function.c (expand_function_start): Call struct_value_rtx
2900         with incoming as 2.
2901         * config/sparc/sparc.md: Comment updated_return.
2902         * config/sparc/sparc.opt: Add -mstd-struct-return option.
2903         * config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
2904         struct return if sparc_std_struct_return and incoming is 2.
2905         (print_operand): Do not adjust return if
2906         sparc_std_struct_return.
2907
2908 2006-04-04  Roger Sayle  <roger@eyesopen.com>
2909
2910         * builtins.c (fold_builtin_sprintf): Use fold_convert instead of
2911         convert in the middle-end.
2912         * expr.c (store_expr, store_constructor, get_inner_reference,
2913         expand_expr_real_1, string_constant, try_casesi, try_tablejump):
2914         Likewise.
2915         * tree.c (build_range_type): Likewise.
2916
2917 2006-04-04  Tom Tromey  <tromey@redhat.com>
2918
2919         * doc/install.texi (Prerequisites): Mention jar.
2920
2921 2006-04-04  Daniel Berlin  <dberlin@dberlin.org>
2922
2923         * doc/tree-ssa.texi (Preserving the virtual ssa form): New
2924         subsection.
2925
2926 2006-04-04  Matthias Klose  <doko@debian.org>
2927
2928         * Makefile.in (unprotoize.o): Same dependencies as for protoize.o.
2929         * Makefile.in (s-macro_list): Conform to POSIX rules in single quoted
2930         strings.
2931
2932 2006-04-03  Geoffrey Keating  <geoffk@apple.com>
2933
2934         * doc/extend.texi (Function Attributes): Rewrite visibility
2935         attribute documentation.
2936         * doc/invoke.texi (C++ Dialect Options): Rewrite
2937         -fvisibility-inlines-hidden documentation to describe something
2938         entirely different, although in practise compatible.
2939         (Code Gen Options): Warn about system headers in -fvisibility=
2940         documentation.
2941
2942         * doc/extend.texi (Other Builtins): Document that
2943         __builtin_nan is a compile-time constant only when its argument
2944         is valid.
2945
2946 2006-04-03  Adam Nemet  <anemet@caviumnetworks.com>
2947
2948         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: When
2949         trying to remove TRUNCATE check if all bits outside the new mode
2950         are identical to the sign bit.
2951
2952 2006-04-03  Jeff Law  <law@redhat.com>
2953
2954         * tree-ssa-dom.c (propagate_rhs_into_lhs): Avoid useless folding
2955         and operand scanning in some common cases.
2956
2957 2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
2958             Dale Johannesen  <dalej@apple.com>
2959
2960         PR target/19653
2961         * regclass.c (struct reg_pref): Update documentation.
2962         (regclass): Set prefclass to NO_REGS if memory is the best option.
2963         (record_reg_classes): Cope with a prefclass set to NO_REGS.
2964         * reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
2965         into account.  For non-registers, equate an empty preferred
2966         reload class to a `!' in the constraint; move the if clause to
2967         do so after those that reject the insn.
2968         (push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
2969         return NO_REGS.
2970         (find_dummy_reload): Likewise.
2971         * doc/tm.texi (Register Classes): Document what it means
2972         if PREFERRED_*_RELOAD_CLASS return NO_REGS.
2973         * config/i386/i386.c (ix86_preferred_reload_class): Force
2974         using SSE registers (and return NO_REGS for floating-point
2975         constants) if math is done with SSE.
2976         (ix86_preferred_output_reload_class): New.
2977         * config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
2978         * config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
2979         * config/i386/i386.md: Remove # register preferences.
2980
2981 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
2982
2983         PR bootstrap/26992
2984         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
2985         chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
2986         the type of nb_iter.
2987         (instantiate_parameters_1): Convert the operands before calling
2988         chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
2989         * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.
2990
2991 2006-04-02  Roger Sayle  <roger@eyesopen.com>
2992
2993         * builtins.c (dummy_object): Use build_int_cst instead of convert.
2994         * tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
2995         instead of convert.
2996         * dojump.c (do_jump): Likewise.
2997         * expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
2998         * gimplify.c (gimple_boolify, gimplify_init_constructor,
2999         gimplify_boolean_expr): Likewise.
3000         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
3001         * varasm.c (array_size_for_constructor): Likewise.
3002         * tree-object-size.c (compute_object_offset): Likewise.
3003
3004 2006-04-02  Roger Sayle  <roger@eyesopen.com>
3005
3006         PR middle-end/26977
3007         * expr.c (emit_group_store): Check whether simplify_gen_subreg returns
3008         NULL_RTX, indicating it couldn't create a valid paradoxical subreg.
3009
3010 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
3011
3012         PR tree-optimization/26939
3013         * tree-chrec.c (chrec_merge): Use eq_evolutions_p.
3014
3015 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
3016
3017         * tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
3018         at_stmt.  Convert the type of operands before calling
3019         build_polynomial_chrec.
3020         (add_to_evolution): Pass an extra argument at_stmt.  Adjust the call to
3021         add_to_evolution_1.
3022         (follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
3023         (instantiate_parameters_1): Convert the type of operands before calling
3024         build_polynomial_chrec.
3025         * tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
3026         chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
3027         reset_evolution_in_loop): Insert asserts to check the types of the
3028         operands.
3029         (chrec_type): Moved...
3030         (eq_evolutions_p): Use operand_equal_p.
3031         * tree-chrec.h (build_polynomial_chrec): Insert an assert to check
3032         the types of the operands.
3033         (chrec_type): ...here.
3034         * tree-data-ref.c (create_data_ref): Convert the operands before
3035         calling chrec_replace_initial_condition.
3036         (same_access_functions, analyze_subscript_affine_affine,
3037         analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
3038         (compute_subscript_distance, analyze_ziv_subscript,
3039         analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
3040         analyze_miv_subscript): Convert the operands before calling
3041         chrec_fold_minus or chrec_fold_plus.
3042
3043 2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>
3044
3045         * tree-data-ref.c (compute_all_dependences): Use a pointer to
3046         the dependence_relations vector.
3047         (compute_data_dependences_for_loop): Adjust call to
3048         compute_all_dependences.
3049
3050 2006-04-01  Roger Sayle  <roger@eyesopen.com>
3051             Richard Henderson  <rth@redhat.com>
3052
3053         * gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
3054         gimple_boolify on the condition before calling gimplify_expr.
3055
3056 2006-03-31  Bob Wilson  <bob.wilson@acm.org>
3057
3058         * config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
3059         to leaf_entry/leaf_return.  Change leaf_entry to add 16 bytes to
3060         the frame size.  Update to use the new macros.
3061         * config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
3062         * config/xtensa/ieee754-df.S: Likewise.
3063
3064 2006-03-31  Richard Henderson  <rth@redhat.com>
3065
3066         * tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
3067         (make_edges): ... here.  Control fallthru creation with a local
3068         variable.  Do not play with fake edges.
3069         (make_omp_sections_edges): Don't set EDGE_ABNORMAL.
3070         (make_goto_expr_edges): Don't play with fake edges.  Make for_call
3071         a boolean.
3072
3073 2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>
3074
3075         * dwarf2.h (DW64_CIE_ID): Define.
3076         * dwarf2out.c (DWARF_CIE_ID): Define.
3077         (output_call_frame_info): Output 0xffffffff before standard 8-byte
3078         length header.  Use DWARF_CIE_ID.
3079         (value_format): Use DW_FORM_data4 or DW_FORM_data8 for
3080         dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.
3081
3082 2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>
3083
3084         * config/sh/linux-atomic.asm: New file.
3085         * config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.
3086
3087 2006-03-31  DJ Delorie  <dj@redhat.com>
3088
3089         * config/m32c/cond.md: Set condition flags properly throughout.
3090         * config/m32c/minmax.md: Likewise.
3091         * config/m32c/prologue.md: Likewise.
3092         * config/m32c/bitops.md: Likewise.
3093         * config/m32c/muldiv.md: Likewise.
3094         * config/m32c/mov.md: Likewise.
3095         * config/m32c/addsub.md: Likewise.
3096         * config/m32c/m32c.md: Likewise.
3097         * config/m32c/jump.md: Likewise.
3098         * config/m32c/shift.md: Likewise.
3099
3100         * config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
3101         conditionally output the pattern for this.
3102         * config/m32c/m32c.c (flags_needed_for_conditional): New.
3103         (m32c_compare_redundant): New.
3104         (m32c_output_compare): New.
3105         * config/m32c/m32c-protos.h (m32c_output_compare): New.
3106
3107         * config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
3108         dest, not src.  Allow other 4-byte modes.
3109
3110 2006-03-30  Denis Chertykov  <denisc@overta.ru>
3111
3112         * doc/md.texi: Refer to avr/constraints.md instead of
3113         avr/avr.h.
3114
3115 2006-03-30  Roger Sayle  <roger@eyesopen.com>
3116
3117         * expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
3118         signed vs. unsigned comparison failures on some hosts.
3119
3120 2006-03-31  Alan Modra  <amodra@bigpond.net.au>
3121
3122         PR target/26459
3123         * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
3124         change to FLOAT_REGS.
3125
3126         * config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
3127         (rs6000_override_options): Use it.
3128         (rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
3129         only for -mabi=spe/no-spe and -mabi=altivec.
3130
3131 2006-03-30  Geoffrey Keating  <geoffk@apple.com>
3132
3133         * config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
3134         !Zdynamiclib.
3135
3136 2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>
3137
3138         * Makefile.in: Rename docdir to gcc_docdir.
3139
3140 2006-03-30  Roger Sayle  <roger@eyesopen.com>
3141
3142         PR target/17959
3143         * expr.c (emit_group_store): Optimize group stores into a pseudo
3144         register by using a paradoxical subreg to initialize the destination
3145         if the first or last member of the group specifies a "low part".
3146
3147 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3148
3149         PR target/26734
3150         * rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
3151         * target.h (struct gcc_target.speculate_insn): Change type of the
3152         second parameter to 'int'.
3153         * lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
3154         the second operand of the DEPS_LIST.
3155         (copy_DEPS_LIST_list): Update reference to the second operand of the
3156         DEPS_LIST.
3157         * rtl.h (alloc_DEPS_LIST): Update signature.
3158         * sched-int.h (ds_t): Change typedef to 'int'.
3159         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
3160
3161 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3162
3163         * haifa-sched.c (try_ready): Change condition to restore
3164         non-speculative pattern of the instruction.
3165         (process_insn_depend_be_in_spec): Code to keep probability of the
3166         speculative dependence non-decreasing.
3167
3168 2006-03-30  Jie Zhang  <jie.zhang@analog.com>
3169
3170         * config/bfin/bfin.c (single_move_for_strmov): Renamed to...
3171         (single_move_for_movmem): ... this. Also change all uses.
3172         (bfin_expand_strmov): Renamed to...
3173         (bfin_expand_movmem): ... this. Also change all uses.
3174         * config/bfin/bfin.md (movstrsi): Renamed to...
3175         (movstrsi): ...this.
3176
3177 2006-03-30  Paolo Bonzini  <bonzini@gnu.org>
3178
3179         PR tree-optimization/26830
3180
3181         * tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
3182         (copy_prop_visit_stmt): Remove write-only variable ann.
3183         (init_copy_prop): Check variable loop depth here.  Do not simulate
3184         memory-tag and virtual operand PHIs except for store copy prop.
3185
3186 2006-03-30  Richard Guenther  <rguenther@suse.de>
3187
3188         * config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
3189         variants with double arguments.
3190
3191 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
3192
3193         * genpreds.c (write_tm_constrs_h): Delete variable p.
3194         * genconditions.c (write_header): Add tm-constrs.h to included
3195         headers.
3196         * genpeep.c (main): Add toplev.h to included headers.
3197         * Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
3198         (build/genpeep.o): Add toplev.h dependency.
3199         * config/rs6000/constraints.md: Add "W" constraint.
3200
3201 2006-03-29  Roger Sayle  <roger@eyesopen.com>
3202
3203         * stor-layout.c (mode_for_size_tree): Remove restiction on type
3204         sizes by correctly testing whether the size fits a host integer.
3205         (initialize_sizetypes): Use set_min_and_max_values_for_integral_type
3206         to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
3207         SImode range for the default sizetype and bitsizetype.
3208
3209 2006-03-29  Roger Sayle  <roger@eyesopen.com>
3210
3211         * convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
3212         and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
3213         quickly if the argument is already of the correct type.
3214         Call fold_build1 instead of build1.  Tidy up blank lines.
3215
3216 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
3217
3218         * genemit.c (main): Add tm-constrs.h to included headers.
3219         * genoutput.c (output_prologue): Add tm-constrs.h to included headers.
3220         * genpeep.c (main): Add tm-constrs.h to included headers.
3221         * genpreds.c (write_satisfies_constraint_fns): Rename to ...
3222         (write_tm_constrs_h): this and write complete file.
3223         (write_tm_preds_h): Do not emit satisfies_constraint fns.
3224         (write_insn_preds_c): Add tm-constrs.h to included headers.
3225         (gen_constrs): New variable.
3226         (parse_option): Parse "-c".
3227         (main): Invoke write_tm_constrs_h.
3228         * genrecog.c (write_header): Add tm-constrs.h to included headers.
3229         * Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
3230         (object_out_file): Add tm-constrs.h dependency.
3231         (insn-emit.o): Same.
3232         (insn-output.o): Same.
3233         (insn-peep.o): Same.
3234         (insn-preds.o): Same.
3235         (insn-recog.o): Same.
3236         (tm-constsr.h): New target.
3237         (s-constrs-h): New target.
3238
3239         * config/rs6000/constraints.md: New file.
3240         * config/rs6000/rs6000.c: Include tm-constrs.h.
3241         (num_insn_constant_wide): Convert to satisfies_constraint.
3242         (rs6000_rtx_costs): Convert to satisfies_constraint.
3243         * config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
3244         (CONST_OK_FOR_LETTER_P): Delete.
3245         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
3246         (EXTRA_CONSTRAINT): Delete.
3247         (EXTRA_MEMORY_CONSTRAINT): Delete.
3248         (EXTRA_ADDRESS_CONSTRAINT): Delete.
3249         * config/rs6000/predicates.md: Convert to satisfies_constraint.
3250         * config/rs6000/rs6000.md: Include constraints.md.  Convert to
3251         satisfies_constraint.
3252
3253         * config/i386/i386.c: Include tm-constrs.h.
3254
3255 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
3256
3257         * tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
3258         * tree-data-ref.c (find_data_references_in_loop,
3259         compute_data_dependences_for_loop): Use pointers to VEC.
3260         (analyze_all_data_dependences): Adjust calls.
3261         * tree-data-ref.h (find_data_references_in_loop,
3262         compute_data_dependences_for_loop): Adjust declarations.
3263         * tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
3264         compute_data_dependences_for_loop.
3265
3266 2006-03-29  Paul Brook  <paul@codesourcery.com>
3267
3268         * config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
3269         (movdf_vfp): Ditto.
3270
3271 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
3272
3273         PR tree-optimization/26859
3274         * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
3275         division by zero.
3276         (convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
3277         for the step after fold_convert.
3278
3279 2006-03-29  Paul Brook  <paul@codesourcery.com>
3280
3281         * reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
3282         (inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.
3283
3284 2006-03-29  Paul Brook  <paul@codesourcery.com>
3285
3286         PR middle-end/23623
3287         * targhooks.c (default_narrow_bitfield): New fuction.
3288         * targhooks.h (default_narrow_bitfield): add prototype.
3289         * target.h (gcc_target): Add narrow_volatile_bitfield.
3290         * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
3291         * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
3292         * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
3293         * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.
3294
3295 2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>
3296
3297         * config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
3298         tmake_file.
3299         * config/s390/s390.c (S390_scalar_mode_supported_p): New function.
3300         (NR_C_MODES): Add TDmode, DDmode and SDmode.
3301         (s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
3302         (s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
3303         (s390_function_arg_float): Allow SDmode and DDmode values to be
3304         passed in floating point registers.
3305         (s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
3306         check with SCALAR_FLOAT_MODE_P.
3307         (TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.
3308
3309 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
3310
3311         PR tree-optimization/25985
3312         * tree-ssa-loop-niter.c (number_of_iterations_le,
3313         number_of_iterations_ne): Make comments more precise.
3314         (number_of_iterations_cond): Add only_exit argument.  Use the
3315         fact that signed variables do not overflow only when only_exit
3316         is true.
3317         (loop_only_exit_p): New.
3318         (number_of_iterations_exit): Pass result of loop_only_exit_p to
3319         number_of_iterations_cond.
3320
3321 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
3322
3323         PR tree-optimization/26643
3324         * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
3325         bit_field_refs.
3326
3327 2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>
3328
3329         * config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
3330         (divsi3_i4_int): Likewise.
3331
3332 2006-03-28  Roger Sayle  <roger@eyesopen.com>
3333
3334         * expr.c (emit_group_store): Only create a new pseudo reg if the
3335         quantity it needs to hold isn't already a suitable pseudo.
3336
3337 2006-03-28  Jeff Law  <law@redhat.com>
3338
3339         * timevar.def (TV_TREE_PHI_CPROP): New timevar.
3340         * tree-ssa-dom.c (pass_phi_only_cprop): Use it.
3341
3342 2006-03-28  Roger Sayle  <roger@eyesopen.com>
3343
3344         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
3345         the equivalent ~X & Y, and the symmetry related transformations.
3346         (fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
3347         ~X & Y, and symmetry related transforms.
3348
3349 2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3350
3351         Revert my 2006-03-27 patches.
3352
3353 2006-03-28  Roger Sayle  <roger@eyesopen.com>
3354
3355         * fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
3356         ~(T1)X, when T1 and T2 are integer types of the same precision
3357         and (T2)X isn't an extension.
3358
3359 2006-03-28  Jeff Law  <law@redhat.com>
3360
3361         PR tree-optimization/26796
3362         * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
3363         need EH edge cleanups rather than purging them immediately.
3364         (eliminate_degenerate_phis): Handle queued EH cleanups.
3365
3366 2006-03-28  Daniel Berlin  <dberlin@dberlin.org>
3367
3368         * tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
3369         from parent_var.
3370
3371 2006-03-27  Roger Sayle  <roger@eyesopen.com>
3372
3373         PR middle-end/22524
3374         * fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
3375         cast BIT_NOT_EXPR operand to the correct type.
3376
3377 2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>
3378
3379         * tree-loop-linear.c: Don't include varray.h.
3380         (gather_interchange_stats, try_interchange_loops,
3381         linear_transform_loops): Use VEC instead of VARRAY.
3382         * lambda-mat.c: Don't include varray.h.
3383         * tree-chrec.c: Same.
3384         * lambda-trans.c: Same.
3385         * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
3386         VEC instead of VARRAY.
3387         * tree-vectorizer.h: Idem.
3388         * tree-data-ref.c (dump_data_references,
3389         dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
3390         initialize_data_dependence_relation, finalize_ddr_dependent,
3391         compute_all_dependences, find_data_references_in_loop,
3392         compute_data_dependences_for_loop, analyze_all_data_dependences,
3393         free_dependence_relation, free_dependence_relations,
3394         free_data_refs): Idem.
3395         * tree-data-ref.h (data_reference_p, subscript_p): New.
3396         (data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
3397         VEC instead of VARRAY.
3398         (DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
3399         (find_data_references_in_loop, compute_data_dependences_for_loop,
3400         dump_ddrs, dump_dist_dir_vectors, dump_data_references,
3401         dump_data_dependence_relations, free_dependence_relations,
3402         free_data_refs): Adjust declaration.
3403         (lambda_transform_legal_p): Move declaration here...
3404         * tree-vect-analyze.c (vect_analyze_data_ref_dependences,
3405         vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
3406         vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
3407         vect_analyze_data_refs): Use VEC instead of VARRAY.
3408         * lambda.h (lambda_transform_legal_p): ...from here.
3409         * lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
3410         * tree-vect-transform.c (vect_update_inits_of_drs): Idem.
3411         * Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
3412         tree-chrec.o): Don't depend on VARRAY_H.
3413
3414 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3415
3416         * rtl.def (Copyright): Update date.
3417         (DEPS_LIST): Change type of the second operand to 'int'.
3418         * target.h (Copyright): Update date.
3419         (struct gcc_target.speculate_insn): Change type of the second parameter
3420         to 'int'.
3421         * lists.c (Copyright): Update date.
3422         (alloc_DEPS_LIST): Change signature.  Update reference to the second
3423         operand of the DEPS_LIST.
3424         (copy_DEPS_LIST_list): Update reference to the second operand of the
3425         DEPS_LIST.
3426         * rtl.h (Copyright): Update date.
3427         (alloc_DEPS_LIST): Update signature.
3428         * sched-int.h (Copyright): Update date.
3429         (ds_t): Change typedef to 'int'.
3430         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
3431
3432 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3433
3434         * haifa-sched.c (Copyright): Update date.
3435         (try_ready): Change condition to restore non-speculative pattern
3436         of the instruction.
3437         (process_insn_depend_be_in_spec): Code to keep probability of the
3438         speculative dependence non-decreasing.
3439
3440 2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>
3441
3442         * regrename.c (replace_oldest_value_addr): Initialize a variable to
3443         shut up the compiler.
3444
3445 2006-03-27  J"orn Rennecke <joern.rennecke@st.com>
3446
3447         * config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
3448         to use lib prefix for target.
3449         ($(T)libic_invalidate_array_4-200.a): Likewise.
3450         ($(T)libic_invalidate_array_4a.a): Likewise.
3451
3452 2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
3453             J"orn Rennecke <joern.rennecke@st.com>
3454
3455         * superh.opt: New file.
3456         * sh.c (boardtype, osruntime): Remove.
3457         * superh.h (SUBTARGET_OPTIONS): Remove.
3458         * config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.
3459
3460         * config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
3461         arguments with ^ and/or [].
3462
3463         * config.gcc (sh-*-*): Add quoting to account for quirk of
3464         Solaris /bin/sh.
3465         Replace == with = in enable_incomplete_targets test.
3466
3467         * config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
3468         with MASK_LITTLE_ENDIAN.
3469
3470         * config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
3471         * config/sh/sh.opt: Added to some comments.
3472         * config/sh/superh.h: Removed some chaff.
3473
3474         * config/sh/sh.opt: Add m4-[1234]00* options.
3475         * config/sh/sh.c (sh_handle_option): Likewise.
3476         * config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
3477         (ic_invalidate_array_4-100.o): New rule.
3478         ($(T)libic_invalidate_array_4-100.a): Likewise.
3479         (ic_invalidate_array_4-200.o): Likewise.
3480         ($(T)libic_invalidate_array_4-200.a): Likewise.
3481         (ic_invalidate_array_4a.o): Likewise.
3482         ($(T)libic_invalidate_array_4a.a): Likewise.
3483         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
3484         * config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
3485         m4-200*, and m4a*.
3486         * config/sh/crt1.asm: Merged in profiling code.
3487         * config/sh/superh.h (STARTFILE_SPEC): Override.
3488         * config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
3489         Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
3490         * config.gcc (sh*-superh-elf): Add t-superh to tmake_file.
3491
3492         * t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
3493         * config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
3494         MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.
3495
3496         * sh.opt (mpretend-cmove): New option.
3497         * sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
3498         * sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
3499         (movsicc): Add TARGET_PRETEND_CMOVE code.
3500
3501 2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>
3502
3503         * config/s390/s390-protos.h (s390_hard_regno_mode_ok,
3504         s390_class_max_nregs): New function prototypes.
3505         * config/s390/s390.c (REGNO_PAIR_OK): New macro.
3506         (s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
3507         * config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
3508         CLASS_MAX_NREGS): Macro bodies replaced by function calls.
3509
3510 2006-03-26  Geoffrey Keating  <geoffk@apple.com>
3511
3512         * dwarf2out.c (add_location_or_const_value_attribute): Call
3513         tree_add_const_value_attribute if nothing else works.
3514         (reference_to_unused): New.
3515         (rtl_for_decl_init): Use reference_to_unused to decide whether
3516         to output an initializer.
3517
3518 2006-03-27  Alan Modra  <amodra@bigpond.net.au>
3519
3520         PR target/26459
3521         * config/rs6000/rs6000.md (DF reg move peephole): Prevent
3522         peephole removing spe frob_di_df_2.
3523
3524 2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>
3525
3526         * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
3527         (subscript_dependence_tester_1): Declared.
3528         (print_dir_vectors, print_dist_vectors): New.
3529         (debug_data_dependence_relation): New.
3530         (dump_data_dependence_relation): Print more details.
3531         (initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
3532         (analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
3533         (save_dist_v, save_dir_v, add_outer_distances,
3534         build_classic_dist_vector_1): New.
3535         (build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
3536         Don't test for lambda_vector_lexico_pos.
3537         (same_access_functions, add_multivariate_self_dist,
3538         add_other_self_distances, dir_from_dist): New.
3539         (build_classic_dir_vector): Replace implementation almost identical to
3540         build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
3541         dir_from_dist.
3542         (subscript_dependence_tester_1): New.
3543         (subscript_dependence_tester): Handle the lexicographically negative
3544         distance vectors by recomputing the dependence relation.
3545         (compute_affine_dependence): Remove parameter loop_nest_depth.
3546         (compute_self_dependence): Don't call compute_subscript_distance.
3547         (compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
3548         Add a parameter for the loop_nest.
3549         (find_loop_nest_1, find_loop_nest): New.
3550         (compute_data_dependences_for_loop): Compute the loop nest, and give
3551         up if the nest is not well formed.
3552         * tree-data-ref.h (loop_p): New.
3553         (struct data_dependence_relation): Replace size_vect field with
3554         loop_nest, a vec of loops.
3555         (DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
3556         (DDR_LOOP_NEST): New.
3557         (print_dir_vectors, print_dist_vectors,
3558         debug_data_dependence_relation): Declared.
3559         (index_in_loop_nest): New.
3560         * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
3561         DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
3562         distance.
3563
3564 2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>
3565
3566         * simplify-rtx.c (simplify_relational_operation): Call
3567         simplify_relational_operation_1 even if mode is VOIDmode.
3568
3569 2006-03-25  Daniel Berlin  <dberlin@dberlin.org>
3570
3571         PR tree-optimization/26804
3572         * tree.h (DECL_CALL_CLOBBERED): New macro.
3573         (tree_decl_common): Add call_clobbered_flag.
3574         * tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
3575         (mark_call_clobbered): Set DECL_CALL_CLOBBERED.
3576         (clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
3577         (mark_non_addressable): Ditto.
3578         * tree-ssa.c (verify_call_clobbered): New function.
3579         (verify_alias_info): Use it.
3580         * tree-pass.h (pass_reset_cc_flags): New prototype.
3581         * tree-ssa-alias.c (pass_reset_cc_flags): New structure.
3582         (reset_cc_flags): New function.
3583         * passes.c (init_optimization_passes): Call reset_cc_flags after
3584         initializing referenced_vars.
3585
3586 2006-03-25  Uros Bizjak  <uros@kss-loka.si>
3587             Roger Sayle  <roger@eyesopen.com>
3588
3589         PR middle-end/26717
3590         * fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
3591         to 1.0 for non-real operands. Implement A / A optimization for
3592         complex operands.
3593
3594 2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>
3595
3596         * config/i386/i386.c (size_cost): Correct the comment for
3597         cost of storing fp registers.
3598         (i386_cost): Likewise.
3599         (i486_cost): Likewise.
3600         (pentium_cost): Likewise.
3601         (pentiumpro_cost): Likewise.
3602         (k6_cost): Likewise.
3603         (athlon_cost): Likewise.
3604         (k8_cost): Likewise.
3605         (pentium4_cost): Likewise.
3606         (nocona_cost): Likewise.
3607         (generic64_cost): Likewise.
3608         (generic32_cost): Likewise.
3609
3610 2006-03-24  Denis Chertykov  <denisc@overta.ru>
3611
3612         * config/avr/avr-protos.h (extra_constraint): Delete.
3613         (extra_constraint_Q): New declaration.
3614         * config/avr/constraints.md: New file.
3615         * config/avr/avr.md: Include it.
3616         (REG_X, REG_Y, REG_Z, REG_W): New constants.
3617         (TMP_REGNO, ZERO_REGNO): Likewise.
3618         (UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
3619         * config/avr/avr.c (avr_reg_class_from_letter): Delete.
3620         (extra_constraint): Delete.
3621         (extra_constraint_Q): Test for memory constraint 'Q'.
3622         * config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
3623         (REG_CLASS_FROM_LETTER): Delete.
3624         (CONST_OK_FOR_LETTER_P): Delete.
3625         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
3626         (EXTRA_CONSTRAINT): Delete.
3627         (TMP_REGNO): Delete.
3628         (ZERO_REGNO): Delete.
3629
3630 2006-03-24  Jeff Law  <law@redhat.com>
3631
3632         * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
3633         directly.  Call mark_new_vars_to_rename slightly earlier.
3634
3635 2006-03-24  Geoffrey Keating  <geoffk@apple.com>
3636
3637         * dwarf2out.c (is_c_family): Understand new DWARF3 language types.
3638         (is_cxx): Likewise.
3639         (gen_compile_unit_die): Use new language types for Objective-C and
3640         Objective-C++.
3641         (dwarf2out_decl): Use is_cxx rather than testing explicitly against
3642         DW_LANG_C_plus_plus.
3643
3644         PR 26793
3645         * config/t-darwin (crt3.o): Work around bug 26840.
3646         * config/darwin-crt3.c: Rewrite.
3647         * config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.
3648
3649 2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>
3650
3651         * doc/invoke.texi: Document -femit-class-debug-always
3652         * common.opt: Add -femit-class-debug-always.
3653
3654 2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>
3655
3656         * config/s390/s390.c (s390_decompose_address): Allow SImode for
3657         index and base register.
3658         (s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
3659         print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
3660         with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
3661         REGNO_OK_FOR_INDEX_P.
3662         * config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
3663         ADDR_REGNO_P.
3664         (REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
3665         REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
3666         REG_OK_FOR_BASE_P): Definitions removed.
3667
3668 2006-03-24  Jakub Jelinek  <jakub@redhat.com>
3669
3670         PR middle-end/26611
3671         * gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
3672         non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
3673         set yet or weren't marked as local yet.
3674
3675 2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>
3676
3677         * regrename.c (scan_rtx_address): Initialize a variable to shut up
3678         the compiler.
3679
3680 2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>
3681
3682         * config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
3683         (rs6000_legitimate_small_data_p): Delete.
3684         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
3685         (rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
3686         and make static.  Add forward declaration.  Update uses.
3687         (rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
3688         of offsettable_memref_p.
3689         * config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
3690         Use rs6000_offsettable_memref_p instead of a less accurate predicate.
3691
3692 2006-03-24  Jeff Law  <law@redhat.com>
3693
3694         * tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
3695         around bug in immediate-use iterator.
3696
3697 2006-03-24  Alan Modra  <amodra@bigpond.net.au>
3698
3699         PR target/26607
3700         * config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
3701         or __LITTLE_ENDIAN__.
3702
3703 2006-03-23  J"orn Rennecke <joern.rennecke@st.com>
3704
3705         * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
3706         * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
3707         * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
3708         * config/sh/sh.opt (mdiv=): Amend description.
3709         * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
3710         (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
3711         (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
3712         SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
3713         (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
3714         Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
3715         * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
3716         (udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
3717         TARGET_DIVIDE_CALL_FP.
3718
3719 2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
3720
3721         * haifa-sched.c (choose_ready): Fix type of the local variable.
3722         Move local variables.  Add comment.
3723         (check_reg_live): Change signature.  Make callable from debugger.
3724         * sched-int.h (check_reg_live): Update signature.
3725         * sched-ebb.c (check_reg_live): Update parameters.
3726         * sched-rgn.c (check_reg_live): Ditto.
3727         (region_head_or_leaf_p): Check pointer before dereferencing.
3728         * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
3729         before reload on optimization levels below 1.
3730
3731 2006-03-23  Richard Henderson  <rth@redhat.com>
3732
3733         * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
3734         tls symbols.
3735
3736         PR target/26347
3737         * config/alpha/predicates.md (local_symbolic_operand): Reject
3738         weak symbols.
3739
3740 2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>
3741
3742         PR tree-opt/26795
3743         * tree-ssa-pre.c (create_value_expr_from): Don't reject
3744         expressions which have overflowed constants.
3745
3746 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
3747
3748         * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.
3749
3750 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
3751
3752         * cfgloopmanip.c (create_loop_notes): Removed.
3753         * final.c (final_scan_insn): Do not handle loop notes.
3754         * jump.c (squeeze_notes): Ditto.
3755         * cfglayout.c (skip_insns_after_block,
3756         duplicate_insn_chain): Ditto.
3757         * cfgcleanup.c (rest_of_handle_jump2): Do not call
3758         create_loop_notes.
3759         * cfgloop.h (create_loop_notes): Declaration removed.
3760
3761 2006-03-23  Richard Sandiford  <richard@codesourcery.com>
3762
3763         * varasm.c (output_constant_pool): Restore fnname and fndecl
3764         arguments.
3765         (assemble_start_function): Adjust call accordingly.
3766         (assemble_end_function): Likewise.
3767
3768 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
3769
3770         PR mudflap/26789
3771         * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.
3772
3773         PR mudflap/26790
3774         * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.
3775
3776 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
3777
3778         PR driver/22600
3779         * system.h (ICE_EXIT_CODE): New macro.
3780         * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
3781         (diagnostic_action_after_output): Likewise.
3782         * gcc.c (fatal_ice): New function.
3783         (execute): Use it instead of fatal.
3784         (fancy_abort): Likewise.
3785         * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.
3786
3787 2006-03-22  Jeff Law  <law@redhat.com>
3788
3789         * loop-unroll.c (analyze_iv_to_split_insn): Handle
3790         iv_analyze_result returning false.
3791
3792 2006-03-22  Jie Zhang  <jie.zhang@analog.com>
3793
3794         * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.
3795
3796 2006-03-22  Richard Henderson  <rth@redhat.com>
3797
3798         PR middle-end/26084
3799         * except.c (duplicate_eh_regions_0): New.
3800         (duplicate_eh_region_1): Duplicate the children of the node as
3801         well as the node itself.  Link them up properly.
3802         (duplicate_eh_region_2): Merge into ...
3803         (duplicate_eh_regions): ... here.  Take copy_region argument, and
3804         copy only a sub-tree if asked.  Simplify copying and fixup.
3805         (eh_region_outer_p): New.
3806         * except.h (duplicate_eh_regions): Update decl.
3807         (eh_region_outer_p): Declare.
3808         * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
3809         (lower_omp_master): Likewise.
3810         (lower_omp_ordered): Likewise.
3811         * tree-cfg.c (struct move_stmt_d): Add new_label_map.
3812         (move_stmt_r): Use it to remap labels.  Handle recursion vs
3813         remap_decls_p properly.
3814         (move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
3815         (find_outermost_region_in_block): New.
3816         (new_label_mapper): New.
3817         (move_sese_region_to_fn): Copy eh information to the new function
3818         properly.
3819         * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
3820         argument.
3821         * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
3822         number.
3823
3824 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
3825
3826         * doc/md.texi (-mshared): Mention that -mshared code can be linked
3827         into shared libraries.
3828
3829 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
3830
3831         * doc/md.texi: Refer to i386/constraints.md instead of
3832         i386/predicates.md.
3833         * config/i386/constraints.md: New file, extracted from...
3834         * config/i386/predicates.md: ...here.
3835         * config/i386/i386.md: Include constraints.md.
3836
3837 2006-03-21  Jason Merrill  <jason@redhat.com>
3838
3839         * builtins.c (expand_builtin_fork_or_exec): Fix pasto.
3840
3841         PR middle-end/20297
3842         * expr.c (init_block_move_fn): Force default visibility.
3843         (init_block_clear_fn): Likewise.
3844         * builtins.c (expand_builtin_fork_or_exec): Likewise.
3845         * targhooks.c (default_external_stack_protect_fail): Likewise.
3846
3847 2006-03-21  Richard Sandiford  <richard@codesourcery.com>
3848
3849         * config/mips/predicates.md (const_call_insn_operand): Allow direct
3850         calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
3851         * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
3852         Use TARGET_OLDABI instead of !TARGET_NEWABI.
3853         (loadgp): Use mips_current_loadgp_style.
3854         (loadgp_noshared): New pattern.
3855         (sibcall_internal): Use MIPS_CALL.
3856         (sibcall_value_internal): Likewise.
3857         (sibcall_value_multiple_internal): Likewise.
3858         (call_internal): Likewise.
3859         (call_value_internal): Likewise.
3860         (call_value_multiple_internal): Likewise.
3861         (call_split): Use MIPS_CALL and add an 'S' constraint.
3862         (call_value_split): Likewise.
3863         (call_value_multiple_split): Likewise.
3864         * config/mips/mips.opt (-mabicalls): Tweak docstring.
3865         (-mshared): New option.
3866         * config/mips/mips-protos.h (mips_loadgp_style): New enum.
3867         (mips_current_loadgp_style): Declare.
3868         * config/mips/mips.c (mips_classify_symbol): Avoid using
3869         SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
3870         rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
3871         TARGET_ABSOLUTE_ABICALLS.
3872         (override_options): Adjust comments.  Improve the warning that is
3873         issued when -mabicalls and -G are used together.
3874         (mips_file_start): Remove comment.
3875         (mips_current_loadgp_style): New function.
3876         (mips_gnu_local_gp): New variable.
3877         (mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
3878         LOADGP_ABSOLUTE.
3879         (mips_output_function_prologue): Use mips_current_laodgp_style.
3880         (mips_expand_prologue): Call mips_emit_loadgp before emitting
3881         the cprestore instruction.
3882         (mips_extra_live_on_entry): Fix reversed test.  Don't make $25
3883         live for TARGET_ABSOLUTE_ABICALLS.
3884         * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
3885         (ASM_SPEC): Pass down -mshared and -mno-shared.
3886         (MIPS_CALL): New macro.
3887         * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
3888         definition.
3889         * doc/invoke.texi (-mabicalls): Update documentation.
3890         (-mshared): Document.
3891
3892 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
3893
3894         * config/ia64/unwind-hpux.c: New file.
3895         * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.
3896
3897 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
3898
3899         PR libgomp/26384
3900         * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.
3901
3902 2006-03-21  Jeff Law  <law@redhat.com>
3903
3904         * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
3905         type conversions of a VR_VARYING source to a wider type.
3906
3907 2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>
3908
3909         * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
3910         tm_file on Solaris 10 and later.
3911         (sparc64-*-solaris2*): Likewise.
3912         (sparc-*-solaris2*): Likewise.
3913         * config/sol26.h: Rename to config/sol2-6.h.
3914         * config/sol2-10.h: New file.
3915
3916 2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>
3917
3918         PR tree-opt/26781
3919         * tree-ssa-pre.c (create_component_ref_by_pieces):
3920         Handle STRING_CST.
3921
3922 2006-03-21  Jakub Jelinek  <jakub@redhat.com>
3923
3924         PR c++/26690
3925         * tree.c (get_callee_fndecl): If CALL is error_mark_node,
3926         return it immediately.
3927
3928 2006-03-21  Michael Matz  <matz@suse.de>
3929
3930         * genautomata.c (<struct state>, num_out_arcs, presence_signature):
3931         New members.
3932         (remove_arc, add_arc): Update num_out_arcs member.
3933         (set_out_arc_insns_equiv_num): Returns nothing instead of number
3934         of out arcs.
3935         (cache_presence): New function.
3936         (compare_states_for_equiv): New function.
3937         (state_is_differed): Don't take number of outargs, adjust callers.
3938         Use new invariant for speeding up.
3939         (init_equiv_class): Create initial classes based on sorted
3940         input.
3941         (partition_equiv_class): Don't track out_arcs_num.
3942         (evaluate_equiv_classes): Call cache_presence on all states and
3943         sort them.
3944
3945 2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>
3946
3947         * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
3948         * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
3949         (bfin_valid_reg_p): Test for pseudos explicitly and use only
3950         REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
3951         callers changed.
3952         * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
3953         (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
3954         (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
3955         (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
3956         REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
3957         macros.
3958         (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
3959         REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
3960         (REGNO_REG_CLASS): ARGP is in PREGS.
3961         * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
3962         IREGS.
3963         (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
3964         to deal with those addresses.
3965         * addresses.h: New file.
3966         * caller-save.c: Include "addresses.h".
3967         (init_caller_save): Use new base_reg_class function.
3968         * rtl-factoring.c: Include "addresses.h".
3969         (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
3970         * recog.c: Include "addresses.h".
3971         (preprocess_constraints): Use new base_reg_class function.
3972         * regrename.c: Include "addresses.h".
3973         (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
3974         functions.  Keep track of a new var INDEX_CODE to compute valid
3975         classes.
3976         (replace_oldest_value_addr): Likewise.
3977         (replace_oldest_value_mem): Use base_reg_class.
3978         * reload.c: Include "addresses.h".
3979         (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
3980         (find_reloads): Use new base_reg_class function.
3981         (find_reloads_address): Likewise; also use regno_ok_for_base_p.
3982         (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
3983         all callers and prototype changed.
3984         * reload1.c: Include "addresses.h".
3985         (maybe_fix_stack_asms): Use base_reg_class.
3986         * regclass.c: Include "addresses.h".
3987         (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
3988         (init_reg_autoinc): Use new base_reg_class function.
3989         (record_reg_classes): Likewise.
3990         (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
3991         OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
3992         Use new args to compute necessary class.
3993
3994         * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
3995         regrename.o, rtl-factoring.o): Update dependencies.
3996         * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
3997         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
3998         (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
3999         REG_OK_FOR_INDEX_P): Delete documentation.
4000
4001 2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>
4002
4003         * config.gcc (sparc-*-solaris2*): Change the default CPU setting
4004         from V7 to V9 for Solaris 7 and above.
4005
4006 2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>
4007
4008         * doc/invoke.texi: Document new flag -fargument-noalias-anything.
4009         * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
4010         argument pointers may not alias any other storage.
4011         * common.opt: Define option -fargument-noalias-anything.
4012         * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
4013         alias semantics is specified by flag_argument_noalias > 2.
4014
4015 2006-03-20  Jeff Law  <law@redhat.com>
4016
4017         * tree-pass.h (pass_phi_only_copy_prop): Delete.
4018         (pass_phi_only_cprop): Declare.
4019         * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
4020         with phi_only_cprop
4021         * tree-ssa-dom.c (degenerate_phi_result): New function.
4022         (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
4023         (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
4024         (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
4025         (eliminate_degenerate_phis): Likewise.
4026         (pass_phi_only_cprop): New pass descriptor.
4027         * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
4028         support code.  Callers updated.
4029         (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
4030         (store_copy_prop): Likewise.
4031         (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.
4032
4033 2006-03-20  Jason Merrill  <jason@redhat.com>
4034
4035         PR c++/21764
4036         * c-pragma.c (visstack): Move out of handle_pragma_visibility.
4037         (push_visibility, pop_visibility): Likewise.
4038         * c-pragma.h: Declare them.
4039
4040 2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>
4041
4042         * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.
4043
4044         * config/sh/sh.c (find_regmode_weight): Change the type of the first
4045         parameter and use get_ebb_head_tail.
4046         (sh_md_init_global): Adjust uses of find_regmode_weight.
4047
4048 2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>
4049
4050         * function.h (struct function) <x_tail_recursion_reentry>:
4051         Rename to x_stack_check_probe_note.
4052         (tail_recursion_reentry): Rename to stack_check_probe_note.
4053         * function.c: Replace tail_recursion_reentry with
4054         stack_check_probe_note everywhere.
4055         (expand_function_start): Only emit a note for
4056         stack_check_probe_note with -fstack-protect.
4057         * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.
4058
4059         * emit-rtl.c (remove_unnecessary_notes): Remove.
4060         (pass_remove_unnecessary_notes): Remove.
4061         * rtl.h (remove_unnecessary_notes): Remove prototype.
4062         * final.c (final_start_function): Don't call remove_unnecessary_notes.
4063         * tree-pass.h (pass_remove_unnecessary_notes): Remove.
4064         * passes.c (pass_remove_unnecessary_notes): Don't run it.
4065
4066 2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>
4067
4068         PR tree-opt/26629
4069         * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
4070         (valid_in_set): Handle ARRAY_REF.
4071         Change "if min_variant or VH" to asserts.
4072         (create_component_ref_by_pieces): Handle ARRAY_REF.
4073         (create_expression_by_pieces): Likewise.
4074         (can_PRE_operation): ARRAY_REFs can now be PRE'd.
4075
4076 2006-03-20  David Edelsohn  <edelsohn@gnu.org>
4077
4078         * genpreds.c (write_insn_extra_address_constraint): Argument `c'
4079         is operand of switch, not str[0].
4080
4081 2006-03-20  Alan Modra  <amodra@bigpond.net.au>
4082
4083         * config/rs6000/rs6000.c (rs6000_handle_option): Use
4084         TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.
4085
4086 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
4087
4088         * genpreds.c (write_tm_preds_h): Add semicolon and newline at
4089         end of insn_extra_address_constraint declaration.
4090
4091 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
4092
4093         * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
4094         (no-sum-in-toc): Same.
4095         * config/rs6000/rs6000.c (rs6000_handle_option): Use new
4096         variables.
4097         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
4098         NO_FP_IN_TOC for -fPIC instead of mask.
4099
4100         * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
4101         (BOOT_LDFLAGS): Delete.
4102         (LDFLAGS): Delete.
4103         * config/rs6000/t-aix52: Same.
4104
4105         * config/rs6000/rs6000.md (store_multiple_power): Delete.
4106         (stmsi[345678]_power): New.
4107
4108 2006-03-17  Steve Ellcey  <sje@cup.hp.com>
4109
4110         * config/ia64/ia64.opt: Add empty line to end of file.
4111
4112 2006-03-17  Richard Guenther  <rguenther@suse.de>
4113
4114         PR middle-end/26721
4115         * builtins.c (get_pointer_alignment): For component style references
4116         adjust alignment to the component type alignment.  Make sure
4117         to adjust alignment for component access of constants.
4118
4119 2006-03-17  David Edelsohn  <edelsohn@gnu.org>
4120
4121         * config/rs6000/rs6000.md (strlensi): Emit barrier after
4122         unconditional jump.
4123
4124 2006-03-17  Paul Brook  <paul@codesourcery.com>
4125
4126         * doc/install.texi: Docuemnt --with-mode.
4127         * config.gcc: Add --with-mode for arm*-*-*.
4128         * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".
4129
4130 2006-03-17  J"orn Rennecke <joern.rennecke@st.com>
4131
4132         * sh.c (max_labelno_before_reorg): New variable.
4133         (sh_reorg): Initialize it.
4134         (find_barrier): Check max_labelno_before_reorg before using
4135         label_to_alignment.  Take length of explicit alignment insns
4136         into account.  When seeing a UNSPECV_CONST_END, return it.
4137
4138         * sh.c (fixup_mova): Set mode of affected label to QImode.
4139         (untangle_mova): New function.
4140         (find_barrier): Use it.  Check mode of label before decrementing
4141         num_mova.
4142         (sh_reorg): Likewise.
4143         Set mode of all insns back to VOIDmode.
4144
4145         * sh.c (MOVA_LABELREF): New macro.
4146         (mova_p, fixup_mova, sh_reorg): Use it.
4147         (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
4148         ADDR_DIFF_VEC matches mova.
4149
4150 2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>
4151
4152         * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
4153         with ATTRIBUTE_UNUSED.
4154
4155 2006-03-17  Alexandre Oliva  <aoliva@redhat.com>
4156
4157         * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
4158         pointer, instead of assuming it is possible to derive the
4159         correct args size from a call insn.
4160
4161 2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
4162
4163         * rtl.h (CONST_INT_P): Define.
4164         * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
4165         instead of GET_CODE(x) == CONST_INT.
4166         (vax_rtx_costs): Likewise.
4167         (vax_output_int_move): Likewise.
4168         (vax_output_int_add): Likewise.
4169         (legitimate_constant_address_p): Likewise.
4170         (index_term_p): Likewise.
4171         * config/vax/vax.h (PRINT_OPERAND): Likewise.
4172         * config/vax/vax.md (and<mode>3): Likewise.
4173         (ashrsi3): Likewise.
4174         (extv): Likewise.
4175         (movstricthi): Likewise.
4176         (movstrictqi): Likewise.
4177         (rotrsi3): Likewise.
4178         (five unnamed insns): Likewise.
4179
4180 2006-03-16  Geoffrey Keating  <geoffk@apple.com>
4181
4182         * doc/tm.texi (SDB and DWARF): Add extra parameter to
4183         ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
4184         * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
4185         * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
4186         Pass to ASM_OUTPUT_DWARF_OFFSET.
4187         * dwarf2out.c (debug_frame_section): New.
4188         (output_call_frame_info): Use debug_frame_section.  Pass it to
4189         dw2_asm_output_offset.
4190         (output_die): Pass appropriate section to dw2_asm_output_offset.
4191         (output_compilation_unit_header): Likewise.
4192         (output_pubnames): Likewise.
4193         (output_aranges): Likewise.
4194         (enum dw_val_class): Break dw_val_class_lbl_offset into
4195         dw_val_class_lineptr and dw_val_class_macptr.
4196         (add_AT_lbl_offset): Delete.
4197         (add_AT_lineptr): New.
4198         (add_AT_macptr): New.
4199         (AT_lbl): Expect a lineptr or macptr.
4200         (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
4201         (attr_checksum): Likewise.
4202         (same_dw_val_p): Likewise.
4203         (size_of_die): Likewise.
4204         (value_format): Likewise.
4205         (output_die): Likewise.
4206         (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
4207         add_AT_lbl_offset.
4208         * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
4209         * config/i386/i386.c (x86_file_start): Call darwin_file_start.
4210         * config/darwin-protos.h (darwin_file_start): New.
4211         (darwin_asm_output_dwarf_offset): New.
4212         * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
4213         * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
4214         darwin_file_start.
4215         * config/darwin.c (darwin_emit_unwind_label): Don't output label
4216         if not EH section; simplify.
4217         (darwin_file_start): New.
4218         (darwin_asm_output_dwarf_offset): New.
4219         * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
4220         mark as 'debug'.
4221         (DEBUG_INFO_SECTION): Likewise.
4222         (DEBUG_ABBREV_SECTION): Likewise.
4223         (DEBUG_ARANGES_SECTION): Likewise.
4224         (DEBUG_MACINFO_SECTION): Likewise.
4225         (DEBUG_LINE_SECTION): Likewise.
4226         (DEBUG_LOC_SECTION): Likewise.
4227         (DEBUG_PUBNAMES_SECTION): Likewise.
4228         (DEBUG_STR_SECTION): Likewise.
4229         (DEBUG_RANGES_SECTION): Likewise.
4230         (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
4231         (ASM_OUTPUT_DWARF_OFFSET): New.
4232
4233 2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>
4234
4235         * config.gcc (tm_defines): Always add to previous value rather
4236         than replacing it.
4237
4238 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
4239
4240         * config/mips/predicates.md (splittable_const_int_operand): New,
4241         split from move_operand.
4242         (splittable_symbolic_operand): New.
4243         (move_operand): Add commentary.  Use splittable_const_int_operand.
4244         Inline mips_atomic_symbolic_constant_p.
4245         * config/mips/mips.md: Add combine splitters for handling moves
4246         of splittable_const_int_operands and splittable_symbolic_operands.
4247         * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
4248         (mips_split_symbol): Declare.
4249         (mips_move_integer): Declare.
4250         * config/mips/mips.c (mips_split_p): Make global.
4251         (TARGET_MIN_ANCHOR_OFFSET): Override default.
4252         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
4253         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
4254         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
4255         (mips_offset_within_object_p): Handle block symbols.
4256         (mips_atomic_symbolic_constant_p): Delete.
4257         (mips_cannot_force_const_mem): Return false for constants that
4258         mips_legitimize_move can handle.
4259         (mips_use_blocks_for_constant_p): New function.
4260         (mips_split_symbol): Make global.
4261         (mips_move_integer): Likewise.  Add a temporary register argument.
4262         (mips_legitimize_const_move): Use splittable_const_int_operand and
4263         splittable_symbolic_operand.
4264         (mips_use_anchors_for_symbol_p): New function.
4265         * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
4266         (mips_split_p): Declare.
4267
4268 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
4269
4270         * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
4271         (mips*-*-linux*): Likewise.
4272
4273 2006-03-16  Roger Sayle  <roger@eyesopen.com>
4274             Daniel Speyer  <dspeyer@wam.umd.edu>
4275
4276         PR middle-end/18259
4277         * tree-dump.c (dump_real): New function.
4278         (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
4279         * Makefile.in (REAL_H): New macro for dependencies on real.h.
4280         (tree-dump.o): Add $(REAL_H) to the dependencies.
4281
4282 2006-03-16  Roger Sayle  <roger@eyesopen.com>
4283
4284         PR middle-end/21781
4285         * real.c (real_from_string): If the mantissa is zero, don't bother
4286         parsing the exponent as the result should always be zero.
4287
4288 2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>
4289
4290         * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.
4291
4292 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4293
4294         * config/ia64/ia64.c (stops_p): Added explicit initialization.
4295         (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
4296         ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
4297         ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
4298         ia64_sched_finish_global): New static functions to implement
4299         hooks from gcc_target.sched.
4300         (spec_check_no, max_uid, pending_data_specs): New static variables.
4301         (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
4302         ia64_spec_check_src_p): New static functions.
4303         (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
4304         (TARGET_SCHED_ADJUST_COST): Removed.
4305         (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
4306         TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
4307         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
4308         TARGET_SCHED_GEN_CHECK,
4309         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
4310         TARGET_SCHED_SET_SCHED_FLAGS): New macros.
4311         (update_set_flags, group_barrier_needed, set_src_needs_barrier):
4312         Fixed to handle speculation checks.
4313         (rtx_needs_barrier): Fixed to handle speculative loads and
4314         their checks.
4315         (ia64_variable_issue): Added code to count speculative loads and their
4316         checks.
4317         (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
4318         speculative loads.
4319         (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
4320         New enumerations.
4321         (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
4322         New constants.
4323         (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
4324         (ia64_reorg): Reset stops_p to NULL after it is freed.
4325         * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
4326         UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
4327         (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
4328         chk_a.
4329         (data_speculative, control_speculative, check_load): New attributes.
4330         (mov<mode>_advanced, mov<mode>_speculative,
4331         mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
4332         zero_extend<mode>di2_speculative,
4333         zero_extend<mode>di2_speculative_advanced): New patterns for
4334         data and control speculative loads.
4335         (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
4336         check loads.
4337         (advanced_load_check_clr_<mode>, speculation_check_<mode>):
4338         New pattern for data and control speculation checks.
4339         (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
4340         ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
4341         reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
4342         Auxiliary definitions for the patterns.
4343         * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
4344         1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
4345         constraints.
4346         (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
4347         for speculation.
4348         (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
4349         * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
4350         2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
4351         New resource constraints.
4352         (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
4353         for speculation.
4354         (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
4355         * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
4356         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
4357         msched-in-control-spec, msched-ldc, msched-control-ldc,
4358         msched-spec-verbose, msched-prefer-non-data-spec-insns,
4359         msched-prefer-non-control-spec-insns,
4360         msched-count-spec-in-critical-path): New flags to tune speculative
4361         scheduling.
4362         * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
4363         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
4364         msched-in-control-spec, msched-ldc, msched-control-ldc,
4365         msched-spec-verbose, msched-prefer-non-data-spec-insns,
4366         msched-prefer-non-control-spec-insns,
4367         msched-count-spec-in-critical-path): Document new flags.
4368
4369 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4370
4371         * target.h (struct spec_info_def): New opaque declaration.
4372         (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
4373         speculate_insn, needs_block_p, gen_check,
4374         first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
4375         * target-def.h (TARGET_SCHED_ADJUST_COST_2,
4376         TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
4377         TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
4378         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
4379         TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
4380         gcc_target.sched.
4381         (TARGET_SCHED): Use new macros.
4382         * rtl.h (copy_DEPS_LIST_list): New prototype.
4383         * sched-int.h (struct sched_info): Change signature of new_ready field,
4384         adjust all initializations. New fields: add_remove_insn,
4385         begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
4386         region_head_or_leaf_p.
4387         (struct spec_info_def): New structure declaration.
4388         (spec_info_t): New typedef.
4389         (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
4390         recovery_block, orig_pat.
4391         (glat_start, glat_end): New variables declaraions.
4392         (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
4393         New access macros.
4394         (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
4395         DETACH_LIFE_INFO, USE_GLAT.
4396         (enum SPEC_SCHED_FLAGS): New enumeration.
4397         (NOTE_NOTE_BB_P): New macro.
4398         (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
4399         attach_life_info, debug_spec_status, check_reg_live): New functions.
4400         (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
4401         all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
4402         sched-ebb.c
4403         (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
4404         * ddg.c (get_block_head_tail): Adjust all uses.
4405         * modulo-sched.c (get_block_head_tail): Adjust all uses.
4406         (sms_sched_info): Initialize new fields.
4407         (contributes_to_priority): Removed.
4408         * haifa-sched.c (params.h): New include.
4409         (get_block_head_tail): Adjust all uses.
4410         (ISSUE_POINTS): New macro.
4411         (glat_start, glat_end): New global variables.
4412         (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
4413         nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
4414         old_last_basic_block, before_recovery, current_sched_info_var,
4415         rgn_n_insns, luid): New static variables.
4416         (insn_cost1): New function.  Move logic from insn_cost to here.
4417         (find_insn_reg_weight1): New function.  Move logic from
4418         find_insn_reg_weight to here.
4419         (reemit_notes, move_insn, max_issue): Change signature.
4420         (move_insn1): Removed.
4421         (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
4422         extend_bb): New static functions to support extension of scheduler's
4423         data structures.
4424         (generate_recovery_code, process_insn_depend_be_in_spec,
4425         begin_speculative_block, add_to_speculative_block,
4426         init_before_recovery, create_recovery_block, create_check_block_twin,
4427         fix_recovery_deps): New static functions to support
4428         generation of recovery code.
4429         (fix_jump_move, find_fallthru_edge, dump_new_block_header,
4430         restore_bb_notes, move_block_after_check, move_succs): New static
4431         functions to support ebb scheduling.
4432         (init_glat, init_glat1, attach_life_info1, free_glat): New static
4433         functions to support handling of register live information.
4434         (associate_line_notes_with_blocks, change_pattern, speculate_insn,
4435         sched_remove_insn, clear_priorities, calc_priorities, bb_note,
4436         add_jump_dependencies): New static functions.
4437         (check_cfg, has_edge_p, check_sched_flags): New static functions for
4438         consistancy checking.
4439         (debug_spec_status): New function to call from debugger.
4440         (priority): Added code to handle speculation checks.
4441         (rank_for_schedule): Added code to distinguish speculative instructions.
4442         (schedule_insn): Added code to handle speculation checks.
4443         (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
4444         Fixed to handle ebbs.
4445         (move_insn): Added code to handle ebb scheduling.
4446         (max_issue): Added code to use ISSUE_POINTS of instructions.
4447         (choose_ready): Added code to choose between speculative and
4448         non-speculative instructions.
4449         (schedule_block): Added code to handle ebb scheduling and scheduling of
4450         speculative instructions.
4451         (sched_init): Initialize new variables.
4452         (sched_finish): Free new variables.  Print statistics.
4453         (try_ready): Added code to handle speculative instructions.
4454         * lists.c (copy_DEPS_LIST_list): New function.
4455         * sched-deps.c (extend_dependency_caches): New function.  Move logic
4456         from create_dependency_caches to here.
4457         (get_dep_weak, ds_merge): Make global.
4458         * genattr.c (main): Code to output prototype for
4459         dfa_clear_single_insn_cache.
4460         * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
4461         (output_dfa_clean_insn_cache_func): Code to output
4462         dfa_clear_single_insn_cache function.
4463         * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
4464         n_insns.
4465         (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
4466         Removed.
4467         (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
4468         New static variables.
4469         (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
4470         fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
4471         struct sched_info.
4472         (ebb_sched_info): Initialize new fields.
4473         (get_block_head_tail): Adjust all uses.
4474         (compute_jump_reg_dependencies): Fixed to use glat_start.
4475         (schedule_ebb): Code to remove unreachable last block.
4476         (schedule_ebbs): Added code to update register live information.
4477         * sched-rgn.c (region_sched_info): Initialize new fields.
4478         (get_block_head_tail): Adjust all uses.
4479         (last_was_jump): Removed.  Adjust users.
4480         (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
4481         add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
4482         Implement new hooks.
4483         (check_dead_notes1): New static function.
4484         (struct region): New fields: dont_calc_deps, has_real_ebb.
4485         (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
4486         (BB_TO_BLOCK): Fixed to handle EBBs.
4487         (EBB_FIRST_BB, EBB_LAST_BB): New macros.
4488         (ebb_head): New static variable.
4489         (debug_regions, contributes_to_priority): Fixed to handle EBBs.
4490         (find_single_block_regions, find_rgns, find_more_rgns): Initialize
4491         new fields.
4492         (compute_dom_prob_ps): New assertion.
4493         (check_live_1, update_live_1): Fixed to work with glat_start instead of
4494         global_live_at_start.
4495         (init_ready_list): New assertions.
4496         (can_schedule_ready_p): Split update code to begin_schedule_ready.
4497         (new_ready): Add support for BEGIN_CONTROL speculation.
4498         (schedule_insns): Fixed code that updates register live information
4499         to handle EBBs.
4500         (schedule_region): Fixed to handle EBBs.
4501         (init_regions): Use extend_regions and check_dead_notes1.
4502         * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
4503         PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
4504         * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
4505         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
4506         TARGET_SCHED_GEN_CHECK,
4507         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
4508         TARGET_SCHED_SET_SCHED_FLAGS): Document.
4509         * doc/invoke.texi (max-sched-insn-conflict-delay,
4510         sched-spec-prob-cutoff): Document.
4511
4512 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4513
4514         * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
4515         inter_tick, queue_index.
4516         (struct sched_info): Change signature of init_ready_list field.
4517         Adjust all initializations.
4518         (RESOLVED_DEPS): New access macro.
4519         (ready_add): Remove prototype.
4520         (try_ready): Add prototype.
4521         * sched-rgn.c (init_ready_list): Use try_ready.
4522         (schedule_region): Initialize
4523         current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
4524         * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
4525         (init_ready_list): Use try_ready.
4526         (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
4527         * lists.c (remove_list_elem): Remove `static'.
4528         (remove_free_INSN_LIST_elem): New function.
4529         * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
4530         * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
4531         (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
4532         New constants.
4533         (readyp): New variable.
4534         (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
4535         change_queue_index, resolve_dep): New static functions.
4536         (try_ready): New function.  Adjust callers in sched-rgn.c and
4537         sched-ebb.c to use it instead of ready_add.
4538         (clock_var): Move at the begining of file.
4539         (rank_for_schedule): Fix typo.
4540         (queue_insn): Add assertion.  Handle QUEUE_INDEX.
4541         (ready_lastpos): Enforce assertion.
4542         (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
4543         update all callers.
4544         (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
4545         (schedule_insn): Rewrite to use try_ready and resolve_dep.
4546         (queue_to_ready): Use free_INSN_LIST_list.
4547         (early_queue_to_ready): Fix typo.
4548         (schedule_block): Init readyp.  Move init_ready_list call after the
4549         initialization of clock_var.  Fix error in rejecting insn by
4550         targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
4551         that previously corrected INSN_TICKs.  Add code for handling
4552         QUEUE_INDEX.
4553         (set_priorities): Fix typo.
4554         (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
4555         Clarify comment and code that keeps current_sched_info->next_tail
4556         non-null.
4557
4558 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4559
4560         * sched-rgn.c (extend_rgns): New static function.
4561         (find_rgns): Use it.
4562         (gather_region_statistics, print_region_statistics): New static
4563         functions.
4564         * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
4565         * doc/invoke.texi (max-sched-extend-regions-iters): Document.
4566
4567 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
4568             Andrey Belevantsev <abel@ispras.ru>
4569
4570         * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
4571         * lists.c (unused_deps_list): New variable.
4572         (free_list): Add assertions to verify the proper distinguishing
4573         between INSN_LISTs and DEPS_LISTs.
4574         (find_list_elem, remove_list_elem, remove_list_node): New static
4575         functions.
4576         (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
4577         remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
4578         remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
4579         (alloc_INSN_LIST): Assert that the list we're working on is indeed
4580         an INSN_LIST.
4581         (free_INSN_LIST_node): Likewise.
4582         * modulo-sched.c (current_sched_info): Initialize flags field.
4583         * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
4584         * rtl.def (DEPS_LIST): Define.
4585         * rtl.h: Declare new functions from lists.c.
4586         * sched-deps.c (spec_dependency_cache): New static variable.
4587         (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
4588         (add_dependence): Change return type to void.  Move the logic to ...
4589         (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
4590         (delete_all_dependences): Add comment about forward_dependency_cache.
4591         Handle spec_dependency_cache.  Handle DEPS_LISTs.
4592         (fixup_sched_groups): Clarify the change of priority of output
4593         and anti dependencies.
4594         (sched_analyze_2): Adjust add_dependence calls to create data
4595         speculative dependence.
4596         (add_forward_dependence): Renamed to add_forw_dep, change prototype.
4597         Adjust all callers.  Handle DEPS_LISTS.
4598         (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
4599         presence of speculation.
4600         (init_dependency_caches, free_dependency_caches):
4601         Handle spec_dependency_cache.
4602         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
4603         estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
4604         New static functions.
4605         (add_or_update_back_dep, add_or_update_back_forw_dep,
4606         add_back_forw_dep, delete_back_forw_dep): New functions.
4607         * sched-int.h (ds_t, dw_t): New typedefs.
4608         (struct sched_info): Add new field flags.
4609         (struct haifa_insn_data): Add new bitfield has_internal_dep.
4610         Prototype new sched-deps.c functions.
4611         (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
4612         (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
4613         MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
4614         BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
4615         SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
4616         SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
4617         New constants.
4618         (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
4619         New enums.
4620         * sched-rgn.c (current_sched_info): Initialize flags field.
4621         (schedule_insns): Initialize current_sched_info before the sched_init
4622         call.
4623         * sched-ebb.c (current_sched_info): Initialize flags field.
4624         (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
4625         Call add_or_update_back_dep instead of add_dependence.
4626         Create control speculative dependencies.
4627         (schedule_insns): Initialize current_sched_info before the sched_init
4628         call.
4629
4630 2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>
4631
4632         * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
4633         fs->signal_frame.
4634         (sh_fallback_frame_state): Likewise.
4635
4636 2006-03-15  Geoffrey Keating  <geoffk@apple.com>
4637
4638         * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
4639         Do switch on default_use_cxa_atexit.
4640         (powerpc*-*-darwin*): Build crt2.o on powerpc.
4641         * config/darwin-crt3.o: New.
4642         * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
4643         to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
4644         (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
4645         OS version.
4646         * config/rs6000/t-darwin: Move crt2.o building to here.
4647         * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
4648         Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
4649         of __cxa_atexit.
4650
4651 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
4652
4653         * config/vax/vax.c (nonindexed_address_p): Change logical negation
4654         from '! xxx' to '!xxx' for coding-style conformance.
4655         * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
4656         (EXTRA_CONSTRAINT): Likewise.
4657         * config/vax/vax.md (four unnamed insns): Likewise.
4658
4659 2006-03-15  Paul Brook  <paul@codesourcery.com>
4660
4661         * config/arm/arm.c (minipool_pad): New.
4662         (add_minipool_forward_ref): Include pool alignment padding in address
4663         calculation.
4664         (push_minipool_fix): Set minipool_pad.
4665         (minipool_pad): Ditto.
4666
4667 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
4668
4669         * config/vax/vax.c (split_quadword_operands): Use MEM_P()
4670         instead of GET_CODE() == MEM and REG_P() instead of
4671         GET_CODE() == REG.
4672         (print_operand_address): Likewise.
4673         (vax_address_cost): Likewise.
4674         (vax_rtx_costs): Likewise.
4675         (vax_notice_update_cc): Likewise.
4676         (vax_output_int_add): Likewise.
4677         (INDEX_REGISTER_P): Likewise.
4678         (BASE_REGISTER_P): Likewise.
4679         (nonindexed_address_p): Likewise.
4680         (vax_mode_dependent_address_p): Likewise.
4681         * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
4682         (PRINT_OPERAND): Likewise.
4683         * config/vax/vax.md (ashlsi3): Likewise.
4684         (ashlsi3): Likewise.
4685         (some more unnamed insns): Likewise.
4686
4687 2006-03-15  Kazu Hirata  <kazu@codesourcery.com>
4688
4689         * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
4690         iterator-style macro.
4691         (mark_control_dependent_edges_necessary): Update the use of
4692         EXECUTE_IF_CONTROL_DEPENDENT.
4693
4694 2006-03-15  J"orn Rennecke <joern.rennecke@st.com>
4695
4696         * config/sh/predicates.md (cache_address_operand): Special.
4697         (ua_address_operand): Likewise.
4698
4699 2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>
4700
4701         * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
4702         loop notes.
4703         * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.
4704
4705 2006-03-15  Andreas Schwab  <schwab@suse.de>
4706
4707         * gensupport.c (identify_predicable_attribute): Don't free p_false
4708         when it is still in use.
4709
4710 2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>
4711
4712         * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
4713         the default setting here.
4714
4715 2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>
4716
4717         * tree-pass.h (pass_cfg): Remove.
4718         * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
4719         * passes.c (pass_cfg): Don't run it.
4720
4721 2006-03-14  Kazu Hirata  <kazu@codesourcery.com>
4722
4723         * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
4724         * reg-stack.c (stack_regs_mentioned_data): Change the type to
4725         VEC(char,heap) *.
4726         (stack_regs_mentioned): Update the uses of
4727         stack_regs_mentioned_data.  Don't access the array beyond its
4728         end.
4729         (reg_to_stack): Update the uses of stack_regs_mentioned_data.
4730         Don't include gt-reg-stack.h.
4731
4732         * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
4733         * system.h (UNALIGNED_WORD_ASM_OP): Poison.
4734
4735         * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.
4736
4737         PR middle-end/26684
4738         * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
4739         STACK_REGS.
4740
4741 2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4742
4743         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.
4744
4745 2006-03-14  Richard Guenther  <rguenther@suse.de>
4746
4747         PR tree-optimization/26672
4748         * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
4749         SSA form.
4750
4751 2006-03-14  Richard Guenther  <rguenther@suse.de>
4752
4753         PR tree-optimization/26667
4754         * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
4755         node for the callees.  Always allow inlining if it will shrink
4756         the function size.
4757
4758 2006-03-14  Richard Guenther  <rguenther@suse.de>
4759
4760         PR middle-end/26659
4761         * builtins.c (get_pointer_alignment): Prefer alignment
4762         information from decls over that from types.
4763
4764 2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>
4765
4766         PR target/26657
4767         * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.
4768
4769 2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>
4770
4771         * config/rs6000/rs6000.opt (mdlmzb): New option.
4772         (msched-prolog, msched-epilog): Use Var not Mask.
4773         * doc/invoke.texi (-mdlmzb): Document.
4774         * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
4775         MASK_SCHED_PROLOG.
4776         (rs6000_override_options): Enable -mdlmzb for 405 and 440.
4777         * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.
4778
4779 2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>
4780
4781         PR rtl-optimization/25739
4782         * bt-load.c (augment_live_range): Free tos pointer.
4783
4784         * gensupport.c (identify_predicable_attribute): Free
4785         p_false pointer.
4786         * gcov.c (create_file_names): Free name pointer.
4787
4788 2006-03-13  Roger Sayle  <roger@eyesopen.com>
4789
4790         PR middle-end/26557
4791         * stmt.c (emit_case_nodes): Handle the case where the index is a
4792         CONST_INT, where the comparison mode is specified by the index type.
4793
4794 2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4795
4796         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
4797         is defined.
4798
4799 2006-03-13  Richard Sandiford  <richard@codesourcery.com>
4800
4801         * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
4802         (*branch_fp_inverted): Likewise.
4803
4804 2006-03-13  Jakub Jelinek  <jakub@redhat.com>
4805
4806         PR middle-end/25989
4807         * omp-low.c (expand_omp_for_generic): Mark istart0
4808         and iend0 as addressable.
4809
4810 2006-03-13  Jie Zhang  <jie.zhang@analog.com>
4811
4812         * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
4813
4814 2006-03-13  Jeff Law  <law@redhat.com>
4815
4816         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
4817         virtual operands are interesting.
4818         (vrp_visit_stmt): Corresponding changes.
4819
4820 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
4821
4822         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
4823         of RETS.
4824         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
4825         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
4826         * config/bfin/crti.S: Use it instead of __PIC__.
4827         * config/bfin/crtn.S: Likewise.
4828
4829         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
4830         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
4831         not if flag_pic.
4832         Lose 'G' modifier for call operand.
4833         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
4834         recognize 'G' modifier.
4835
4836 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
4837
4838         PR middle-end/18859
4839         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
4840         * stmt.c (expand_case): Likewise.
4841
4842 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4843
4844         PR rtl-optimization/26254
4845         * loop-invariant.c (seq_insns_valid_p): New function.
4846         (move_invariant_reg): Only emit new code if it is valid.
4847
4848 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4849
4850         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
4851         Removed.
4852         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
4853         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
4854         (commit_one_edge_insertion): Do not look for loop notes.
4855
4856 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4857
4858         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
4859         flag_test_coverage out of loop.
4860
4861 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4862
4863         * final.c (shorten_branches): Remove outdated comment, and turn
4864         the if branch that guards it to continue.
4865
4866 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
4867
4868         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
4869         * cfgloop.h (struct loop): Remove unused fields.
4870
4871 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
4872
4873         * doc/invoke.texi (-fdump-rtl-loop): Remove.
4874         (-dL, -fdump-rtl-loop2): Update the dump file names
4875
4876         * doc/invoke.texi: Update dump file names.
4877
4878 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
4879
4880         * predict.c (estimate_probability): Remove.
4881         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
4882         * basic-block.h (estimate_probability): Remove prototype.
4883         * passes.c (finish_optimization_passes): Dump branch prediction or
4884         profiling heuristics to the .profile tree dump.
4885         (init_optimization_passes): Unqueue pass_branch_prob.
4886
4887         * doc/invoke.texi (-fdump-rtl-bp): Remove.
4888
4889 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
4890
4891         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
4892         * rtl.h (LABEL_NEXTREF): Remove field accessor.
4893
4894 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
4895
4896         * function.h (frame_offset_overflow): Declare.
4897         * function.c (frame_offset_overflow): New function.
4898         (assign_stack_local_1): Call it to detect that the offset overflows.
4899         * cfgexpand.c (alloc_stack_frame_space): Likewise.
4900
4901 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
4902
4903         * config/sh/sh.c: Include alloc-pool.h.
4904         (label_ref_list_pool): New alloc pool.
4905         (label_ref_list_t): New type for lists of labels.
4906         (struct pool_node): Make wend a label_ref_list_t.
4907         (add_constant): Use the new type, eradicate LABEL_NEXTREF
4908         references.
4909         (dump_table): Likewise.
4910         (sh_reorg): Set up the alloc pool before using add_constant and
4911         dump_table, and destroy it when finishing.
4912
4913 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
4914
4915         * config/mips/mips.c: Remove redundant comment.
4916
4917 2006-03-10  Jason Merrill  <jason@redhat.com>
4918
4919         PR c/26004
4920         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
4921         the target was declared 'register'.
4922
4923 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
4924
4925         * genpreds.c (write_insn_constraint_len): Change definition of
4926         insn_constraint_len to return size_t to match the declaration.
4927
4928 2006-03-10  DJ Delorie  <dj@redhat.com>
4929
4930         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
4931         start at zero.
4932         (m32c_expand_insv): Fix test for an AND mask.
4933
4934 2006-03-10  Richard Guenther  <rguenther@suse.de>
4935
4936         PR middle-end/26565
4937         * builtins.c (get_pointer_alignment): Handle component
4938         references for field alignment.
4939
4940 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
4941
4942         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
4943         when building with libgloss.
4944         (sh*elf): Implement --without-fp option.
4945         (sh64-superh-linux*): Don't multilib.
4946
4947 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
4948
4949         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
4950
4951 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
4952
4953         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
4954         Set it when one of the replacement functions returned true.
4955         Return TODO_cleanup_cfg if cfgchanged is true.
4956         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
4957
4958 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
4959
4960         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
4961         instead of gen_lowpart.
4962
4963 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
4964
4965         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
4966         interface.
4967         (mips_output_order_conditional_branch): Declare.
4968         * config/mips/mips.h (MIPS_BRANCH): New macro.
4969         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
4970         for the comparison.  Use gen_condjump.
4971         (mips_output_conditional_branch): Rework interface to take the
4972         asm templates for a direct branch and the inverse of a direct branch.
4973         (mips_output_order_conditional_branch): New function.
4974         (mips_builtin_branch_and_move): New function.
4975         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
4976         branch condition.  Use gen_single_cc as the condition for
4977         __builtin_mips_upper_* or __builtin_mips_lower_*.
4978         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
4979         Use VOIDmode for the branch condition.
4980         * config/mips/predicates.md (order_operator): New predicate.
4981         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
4982         (branch_fp): Rename to...
4983         (*branch_fp): ...this.  Remove mode from comparison operator.
4984         Use new mips_output_conditional_branch interface.
4985         (branch_fp_inverted): Rename to...
4986         (*branch_fp_inverted): ...this and update as for *branch_fp.
4987         (*branch_zero<mode>): Rename to...
4988         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
4989         Use mips_output_order_conditional_branch.  Only accept ordered
4990         comparisons.
4991         (*branch_zero<mode>_inverted): Rename to...
4992         (*branch_order<mode>_inverted): ...this and update as for
4993         *branch_order<mode>.
4994         (*branch_equality<mode>): Accept zero as the second operand to
4995         the equality operator.  Use the new mips_output_conditional_branch
4996         interface.
4997         (*branch_equality<mode>_inverted): Likewise.
4998         (condjump): New expander.
4999         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
5000         operator.
5001         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
5002         (bc1any2t, bc1any2f): Likewise.
5003         (single_cc): New expander.
5004         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
5005
5006 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
5007
5008         * doc/md.texi: Update documentation of MIPS constraints.
5009         * config/mips/constraints.md: New file.
5010         * config/mips/mips.md: Include it.
5011         * config/mips/mips.c (mips_char_to_class): Delete.
5012         (override_options): Don't initialize mips_char_to_class.
5013         * config/mips/mips.h (mips_char_to_class): Delete.
5014         (REG_CLASS_FROM_LETTER): Delete.
5015         (CONST_OK_FOR_LETTER_P): Delete.
5016         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
5017         (EXTRA_CONSTRAINT_Y): Delete.
5018         (EXTRA_CONSTRAINT_STR): Delete.
5019         (CONSTRAINT_LEN): Delete.
5020         (EXTRA_MEMORY_CONSTRAINT): Delete.
5021
5022 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
5023
5024         * tree-cfg.c (move_block_to_fn): Remove the statements from the
5025         original fn's eh regions.
5026
5027 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
5028
5029         * fold-const.c (build_range_check): Make sure to use a valid type to
5030         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
5031         transformation.
5032
5033         (range_predecessor): New static function.
5034         (range_successor): Likewise.
5035         (merge_ranges): Use them to compute predecessors and successors of
5036         range bounds.
5037
5038 2006-03-09  Roger Sayle  <roger@eyesopen.com>
5039
5040         PR middle-end/26561
5041         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
5042         X op C3, consider whether C3 overflows towards +Inf or -Inf.
5043
5044 2006-03-08  DJ Delorie  <dj@redhat.com>
5045
5046         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
5047         (addpsi3): Expand to include memory operands.  Remove
5048         reload-specific splits.
5049         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
5050         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
5051         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
5052         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
5053         (shift1_qi, shift1_hi, insv): New.
5054         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
5055         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
5056         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
5057         cond_to_int): New.
5058         * config/m32c/m32c-protos.h: Update as needed.
5059         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
5060         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
5061         Fail for unrecognized R* constraints.
5062         (m32c_cannot_change_mode_class): Be more picky about pseudos.
5063         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
5064         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
5065         Add Sp constraint.
5066         (m32c_init_libfuncs): New.
5067         (m32c_legitimate_address_p): Add debug wrapper.
5068         (m32c_rtx_costs): New.
5069         (m32c_address_cost): New.
5070         (conversions): Add 'B' prefix.
5071         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
5072         operands, or word regnames for QI operands.  'B' prints bit
5073         position.
5074         (m32c_expand_setmemhi): New.
5075         (m32c_expand_movmemhi): New.
5076         (m32c_expand_movstr): New.
5077         (m32c_expand_cmpstr): New.
5078         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
5079         (m32c_expand_neg_mulpsi3): Handle non-ints.
5080         (m32c_cmp_flg_0): New.
5081         (m32c_expand_movcc): New.
5082         (m32c_expand_insv): New.
5083         (m32c_scc_pattern): New.
5084         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
5085         a0/a1 out of SIregs.
5086         (STORE_FLAG_VALUE): New.
5087         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
5088         code macros.
5089         (no_insn): New.
5090         * config/m32c/mov.md: Make constraints more liberal.
5091         (zero_extendqihi2): Optimize r0/r1 case.
5092         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
5093         * config/m32c/predicates.md (m32c_any_operand): New.
5094         (m32c_nonimmediate_operand): New.
5095         (m32c_hl_operand): New.
5096         (m32c_r3_operand): New.
5097         (ap_operand): New.
5098         (ma_operand): New.
5099         (memsym_operand): New.
5100         (memimmed_operand): New.
5101         (a_qi_operand): New.
5102         (m32c_eqne_operator): New.
5103         (m32c_1bit8_operand): New.
5104         (m32c_1bit16_operand): New.
5105         (m32c_1mask8_operand): New.
5106         (m32c_1mask16_operand): New.
5107         * config/m32c/blkmov.md: New file.
5108         * config/m32c/t-m32c (MD_FILES): Add blkmov.
5109
5110 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
5111
5112         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
5113         unsigned to fix signed/unsigned comparison issue in
5114         DWARF2_FRAME_REG_OUT.
5115         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
5116         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
5117
5118         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
5119         of ptr into the ENABLE_CHECKING section.
5120
5121 2006-03-08  Jeff Law  <law@redhat.com>
5122
5123         * tree-vrp.c (infer_value_range): Only count pointer uses
5124         and dereferences if -fdelete-null-pointer-checks is enabled.
5125
5126         * tree-vrp.c (find_assert_locations): Infer value ranges for
5127         single use pointers, but do not create ASSERT_EXPRs for them.
5128         When a non-null range is inferred for a pointer, backwards
5129         propagate that range to other equivalent pointers through the
5130         use-def chain.
5131
5132 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
5133
5134         PR bootstrap/26500
5135         * Makefile.in (dvi, html, install-info): Invoke the corresponding
5136         language hook targets.
5137         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
5138         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
5139         if language hook targets were missing.
5140
5141 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
5142
5143         * tree-ssa-opfinalize.h: Removed.
5144         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
5145         dependency.
5146         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
5147         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
5148         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
5149         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
5150         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
5151         finalize_ssa_v_must_def_ops): New.
5152
5153 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
5154
5155         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
5156         block as parameter.
5157
5158 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
5159
5160         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
5161
5162         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
5163         addresses with offsets; reorganize.
5164
5165         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
5166         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
5167         (expand_builtin_init_dwarf_reg_sizes): Likewise.
5168
5169 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
5170
5171         PR target/26588
5172         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
5173
5174 2006-03-08  Ben Elliston  <bje@au.ibm.com>
5175
5176         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
5177
5178 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
5179
5180         PR gomp/26238
5181         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
5182         expansion.
5183
5184 2006-03-07  Richard Guenther  <rguenther@suse.de>
5185
5186         PR tree-optimization/26587
5187         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
5188
5189 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
5190
5191         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
5192
5193 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
5194
5195         * hooks.c (hook_bool_mode_rtx_true): New function.
5196         * hooks.h (hook_bool_mode_rtx_true): Declare.
5197         * toplev.c (compile_file): Call output_shared_constant_pool.
5198         * varasm.c (shared_constant_pool): New variable.
5199         (assemble_start_function, assemble_end_function): Remove arguments
5200         from call to output_constant_pool.
5201         (create_constant_pool): New function, split out from...
5202         (init_varasm_status): ...here.
5203         (force_const_mem): Choose between the shared and per-function constant
5204         pools.  Set current_function_uses_const_pool when reusing old entries
5205         as well as when creating new ones.
5206         (mark_constant): Ignore data argument.
5207         (mark_constants): Remove pool argument.
5208         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
5209         to decide whether the function uses a constant pool.
5210         (output_constant_pool_contents): New function, split out from...
5211         (output_constant_pool): ...here.
5212         (output_shared_constant_pool): New function.
5213         (init_varasm_once): Initialize shared_constant_pool.
5214         * output.h (output_constant_pool): Delete.
5215         (output_shared_constant_pool): Declare.
5216         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
5217         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
5218
5219 2006-03-06  Nick Clifton  <nickc@redhat.com>
5220
5221         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
5222         flag_strength_reduce.
5223
5224 2006-03-06  Ben Elliston  <bje@au.ibm.com>
5225
5226         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
5227         x86_64-*-linux* configurations.
5228
5229         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
5230         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
5231
5232 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
5233
5234         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
5235         Remove.
5236         * basic-block.h: Remove the extern for
5237         rediscover_loops_after_threading.
5238
5239         * cfgloop.c (cancel_loop): Make it static.
5240         * cfgloop.h: Remove the prototype for cancel_loop.
5241
5242         * flow.c (recompute_reg_usage): Make it static.
5243         * rtl.h: Remove the prototype for recompute_reg_usage.
5244
5245         * function.c (use_return_register): Make it static.
5246         * function.h: Remove the prototype.
5247
5248 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
5249
5250         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
5251         Remove.
5252         * recog.h: Remove the prototype for
5253         validate_change_maybe_volatile.
5254
5255 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
5256
5257         * rtlanal.c (replace_reg): Remove.
5258         * rtl.h: Remove the prototype for replace_reg.
5259
5260 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
5261
5262         * regclass.c (reg_scan_update): Remove.
5263         (reg_scan_mark_refs): Remove the last argument.
5264         * rtl.h: Remove the prototype for reg_scan_update.
5265
5266 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5267
5268         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
5269         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
5270         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
5271         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
5272         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
5273         loop-invariant.c, omp-low.c, opts.c, passes.c,
5274         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
5275         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
5276         tree-ssa-structalias.c, tree-ssa-threadedge.c,
5277         tree-ssa-threadupdate.c, tree-vect-patterns.c,
5278         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
5279         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
5280
5281 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5282
5283         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
5284         * dwarf2out.h: Remove the prototype for
5285         dwarf2out_add_library_unit_info.
5286
5287 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5288
5289         * tree.c (add_var_to_bind_expr): Remove.
5290         * tree.h: Remove the prototype for add_var_to_bind_expr.
5291
5292 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5293
5294         * regclass.c (n_non_fixed_regs): Remove.
5295         (init_reg_sets_1, globalize_reg): Remove all uses of
5296         n_non_fixed_regs.
5297         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
5298
5299 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5300
5301         * rtlanal.c (insns_safe_to_move_p): Remove.
5302         * rtl.h: Remove the prototype for insns_safe_to_move_p.
5303
5304 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
5305
5306         * expmed.c (expand_mult_add): Remove.
5307         * expr.h: Remove the prototype for expand_mult_add.
5308
5309 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
5310
5311         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
5312         and REG_SAVED_VAL_EXP constants.
5313         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
5314         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
5315         Handle regs stored by value.
5316         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
5317         (execute_cfa_program): Handle DW_CFA_val_offset,
5318         DW_CFA_val_offset_sf and DW_CFA_val_expression.
5319         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
5320         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
5321         (uw_install_context_1): Handle target regs stored by value.
5322
5323 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
5324
5325         * tree-sra.c (tree_sra): Return todoflags;
5326         (generate_one_element): Set TODO_update_smt_usage if needed.
5327         (pass_sra): Remove TODO_update_smt_usage.
5328         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
5329         parameter.
5330         (tree_ssa_forward_propagate_single_use_vars): Return
5331         TODO_update_smt_usage if we need to update SMT usage.
5332         (pass_forwprop): Remove TODO_update_smt_usage.
5333
5334 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
5335
5336         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
5337         (correct_use_link): Remove reference to get_stmt_operands.
5338         (update_stmt_operands): Likewise.
5339         (get_modify_expr_operands): New function factored out of
5340         parse_ssa_operands and get_expr_operands.
5341         Try to create V_MUST_DEFs for LHS by default.
5342         (get_expr_operands) <case MODIFY_EXPR>: Call
5343         get_modify_expr_operands.
5344         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
5345         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
5346         (parse_ssa_operands) <case MODIFY_EXPR>: Call
5347         get_modify_expr_operands.
5348
5349 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
5350
5351         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
5352         * tree-flow.h: Remove the prototype for
5353         referenced_var_lookup_if_exists.
5354
5355 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
5356
5357         PR rtl-optimization/26345
5358         PR target/19061
5359         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
5360
5361 2006-03-03  Roger Sayle  <roger@eyesopen.com>
5362
5363         PR tree-optimization/26524
5364         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
5365         fold_convert to create a constant of the appropriate type.
5366
5367 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
5368
5369         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
5370         SYMBOL_REF_IN_BLOCK_P.
5371         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
5372         of SYMBOL_FLAG_IN_BLOCK.
5373         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
5374         instead of SYMBOL_REF_IN_BLOCK_P.
5375         * explow.c (use_anchored_address): Likewise.
5376         * rtl.c (rtx_size): Likewise.
5377         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
5378         instead of SYMBOL_FLAG_IN_BLOCK.
5379         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
5380         SYMBOL_REF_IN_BLOCK_P.
5381         (assemble_variable): Likewise.
5382         (output_constant_def_contents): Likewise.
5383         (output_constant_pool): Likewise.
5384         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
5385         instead of SYMBOL_FLAG_IN_BLOCK.
5386         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
5387         SYMBOL_REF_IN_BLOCK_P.
5388         (SYMBOL_REF_BLOCK): Likewise.
5389         (SYMBOL_REF_OFFSET): Likewise.
5390         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
5391         SYMBOL_REF_IN_BLOCK_P.
5392         (SYMBOL_FLAG_IN_BLOCK): Replace with...
5393         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
5394         (SYMBOL_REF_IN_BLOCK_P): Replace with...
5395         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
5396
5397 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
5398
5399         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
5400
5401 2006-03-02  Roger Sayle  <roger@eyesopen.com>
5402
5403         * simplify-rtx.c (simplify_unary_operation): When simplifying
5404         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
5405         that we perform the right shift in the appropriate mode, and
5406         then extend or truncate the result to requested mode.
5407
5408 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
5409
5410         * gengtype.c (main): Handle double_int type.
5411         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
5412         * double-int.c: New file.
5413         * double-int.h: New file.
5414         * system.h: Include doubleint.h.
5415         * Makefile.in (SYSTEM_H): Include double-int.h.
5416         (double-int.o): Add.
5417
5418 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
5419
5420         PR bootstrap/26478
5421         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
5422         copying over it.
5423
5424 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
5425
5426         * tree-vrp.c (remove_range_assertions): Do not update statements
5427         unnecessarily.
5428
5429 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
5430
5431         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
5432         cleanup.
5433         * gcse.c (rest_of_handle_gcse): Ditto.
5434         * except.c (gate_handle_eh): Ditto.
5435         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
5436         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
5437
5438 2006-03-02  Eric Christopher  <echristo@apple.com>
5439
5440         * config/i386/i386.c (machopic_output_stub): Add indirection to
5441         jump.
5442
5443 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
5444
5445         * loop.c: Removed.
5446
5447 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
5448
5449         Sun Niagara specific optimizations.
5450         * config.gcc: Recognize niagara as target.
5451         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
5452         (TARGET_CPU_niagara): Define.
5453         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
5454         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
5455         (CPP_CPU_SPEC): Handle -mcpu=niagara.
5456         (ASM_CPU_SPEC): Likewise.
5457         (PROCESSOR_NIAGARA): New enum entry.
5458         (REGISTER_MOVE_COST): Handle Niagara.
5459         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
5460         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
5461         (sparc_override_options): Recognize "niagara", set appropriate
5462         default MASK_* values for it, and align functions to 32-bytes
5463         by default just like ULTRASPARC/ULTRASPARC3.
5464         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
5465         (sparc64_initialize_trampoline): Likewise.
5466         (sparc_use_sched_lookahead): Use zero for niagara.
5467         (sparc_issue_rate): Use one for niagara.
5468         * config/sparc/niagara.md: New file.
5469         * config/sparc/sparc.md: Include it.
5470         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
5471         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
5472         when default cpu is niagara.
5473         (CPP_CPU_SPEC): Handle -mcpu=niagara.
5474         (ASM_CPU_SPEC): Likewise.
5475         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
5476         when default cpu is niagara.
5477         (ASM_CPU_SPEC): Handle -mcpu=niagara.
5478         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
5479         just like v9/ultrasparc/ultrasparc3.
5480         * doc/invoke.texi: Add documentation for "niagara" and improve
5481         existing documentation for ultrasparc variants.
5482
5483 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
5484
5485         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
5486
5487 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
5488
5489         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
5490         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
5491         and say that only one is needed.
5492         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
5493         * target.h (have_switchable_bss_sections): New hook.
5494         * explow.c (use_anchored_address): Check that the symbol is in a block.
5495         * varasm.c (tls_comm_section, comm_section, lcomm_section)
5496         (bss_noswitch_section): New variables.
5497         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
5498         (get_noswitch_section): New function.
5499         (get_block_for_section): Allow SECT to be null.
5500         (unlikely_text_section_p): Use SECTION_STYLE.
5501         (bss_initializer_p): New function.
5502         (get_variable_section): Move earlier in file.  Take a new argument,
5503         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
5504         Return one of the new *_sections in such cases.
5505         (get_block_for_decl): New function, extracting some logic from
5506         use_blocks_for_decl_p.
5507         (change_symbol_section): Remove in favor of...
5508         (change_symbol_block): ...this new function.
5509         (use_blocks_for_decl_p): Remove checks now performed by
5510         get_block_for_decl.
5511         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
5512         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
5513         (emit_local, emit_bss, emit_common): ...these new functions.
5514         Return true if the alignment was honored.
5515         (emit_tls_common): New function.
5516         (asm_emit_uninitialised): Delete.
5517         (assemble_variable_noswitch): New function, split out from...
5518         (assemble_variable): ...here.  Don't make decisions about common
5519         variables here.  Globalize all public decls that go into non-common
5520         sections.  Check whether SYMBOL_REF_BLOCK is null.
5521         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
5522         (output_constant_pool): Likewise.
5523         (init_varasm_once): Initialize the new section variables.
5524         (have_global_bss_p): New function.
5525         (categorize_decl_for_section): Use bss_initializer_p.
5526         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
5527         (place_block_symbol): Assert that the symbol must be in a block.
5528         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
5529         (TARGET_INITIALIZER): Include it.
5530         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
5531         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
5532         (SECTION_MACH_DEP): Bump by two.
5533         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
5534         (unnamed_section): Mention SECTION_UNNAMED in comment.
5535         (named_section): Likewise SECTION_NAMED.
5536         (noswitch_section_callback): New type.
5537         (noswitch_section): New structure.
5538         (section): Add a noswitch_section alternative.
5539         (SECTION_STYLE): New macro.
5540         (tls_comm_section, comm_section, lcomm_section): Declare.
5541         (bss_noswitch_section, have_global_bss_p): Declare.
5542         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
5543         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
5544         Override.
5545         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
5546         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
5547         Override.
5548
5549 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
5550
5551         * tree-vrp.c (execute_vrp): Return value.
5552         * regrename.c (rest_of_handle_regrename): Ditto.
5553         * tree-into-ssa.c (rewrite_into_ssa): Ditto.
5554         * tree-complex.c (tree_lower_complex): Ditto.
5555         (tree_lower_complex_O0): Ditto.
5556         * tracer.c (rest_of_handle_tracer): Ditto.
5557         * postreload-gcse.c (rest_of_handle_gcse2): Ditto.
5558         * postreload.c (rest_of_handle_postreload): Ditto.
5559         * tree-tailcall.c (execute_tail_recursion): Ditto.
5560         (execute_tail_calls): Ditto.
5561         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
5562         * tree.h (init_function_for_compilation): Ditto.
5563         * ipa-cp.c (ipcp_driver): Ditto.
5564         * tree-scalar-evolution.c (scev_const_prop): Ditto.
5565         * tree-scalar-evolution.h (scev_const_prop): Ditto.
5566         * final.c (compute_alignments): Ditto.
5567         (rest_of_handle_final): Ditto.
5568         (rest_of_handle_shorten_branches): Ditto.
5569         (rest_of_clean_state): Ditto.
5570         * omp-low.c (execute_expand_omp): Ditto.
5571         (execute_lower_omp): Ditto.
5572         * tree-ssa-dse.c (tree_ssa_dse): Ditto.
5573         * ipa-reference.c (static_execute): Ditto.
5574         * tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
5575         * reorg.c (rest_of_handle_delay_slots): Ditto.
5576         (rest_of_handle_machine_reorg): Ditto.
5577         * cgraphunit.c (rebuild_cgraph_edges): Ditto.
5578         * flow.c (recompute_reg_usage): Ditto.
5579         (rest_of_handle_remove_death_notes): Ditto.
5580         (rest_of_handle_life): Ditto.
5581         (rest_of_handle_flow2): Ditto.
5582         * tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
5583         * tree-ssa-ccp.c (do_ssa_ccp): Ditto.
5584         (do_ssa_store_ccp): Ditto.
5585         (execute_fold_all_builtins): Ditto.
5586         * mode-switching.c (rest_of_handle_mode_switching): Ditto.
5587         * modulo-sched.c (rest_of_handle_sms): Ditto.
5588         * ipa-pure-const.c (static_execute): Ditto.
5589         * cse.c (rest_of_handle_cse): Ditto.
5590         (rest_of_handle_cse2): Ditto.
5591         * web.c (rest_of_handle_web): Ditto.
5592         * tree-stdarg.c (execute_optimize_stdarg): Ditto.
5593         * tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
5594         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
5595         * tree-nrv.c (tree_nrv): Ditto.
5596         (execute_return_slot_opt): Ditto.
5597         * tree-ssa-alias.c (compute_may_aliases): Ditto.
5598         (create_structure_vars): Ditto.
5599         * loop-init.c (rtl_loop_init): Ditto.
5600         (rtl_loop_done): Ditto.
5601         (rtl_move_loop_invariants): Ditto.
5602         (rtl_unswitch): Ditto.
5603         (rtl_unroll_and_peel_loops): Ditto.
5604         (rtl_doloop): Ditto.
5605         * gimple-low.c (lower_function_body): Ditto.
5606         (mark_used_blocks): Ditto.
5607         * tree-ssa-sink.c (execute_sink_code): Ditto.
5608         * ipa-inline.c (cgraph_decide_inlining): Ditto.
5609         (cgraph_early_inlining): Ditto.
5610         * global.c (rest_of_handle_global_alloc): Ditto.
5611         * jump.c (cleanup_barriers): Ditto.
5612         (purge_line_number_notes): Ditto.
5613         * ifcvt.c (rest_of_handle_if_conversion): Ditto.
5614         (rest_of_handle_if_after_reload): Ditto.
5615         * tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
5616         (tree_ssa_loop_im): Ditto.
5617         (tree_ssa_loop_unswitch): Ditto.
5618         (tree_vectorize): Ditto.
5619         (tree_linear_transform): Ditto.
5620         (tree_ssa_loop_ivcanon): Ditto.
5621         (tree_ssa_empty_loop): Ditto.
5622         (tree_ssa_loop_bounds): Ditto.
5623         (tree_complete_unroll): Ditto.
5624         (tree_ssa_loop_prefetch): Ditto.
5625         (tree_ssa_loop_ivopts): Ditto.
5626         (tree_ssa_loop_done): Ditto.
5627         * predict.c (tree_estimate_probability): Ditto.
5628         * recog.c (split_all_insns_noflow): Ditto.
5629         (rest_of_handle_peephole2): Ditto.
5630         (rest_of_handle_split_all_insns): Ditto.
5631         * tree-eh.c (lower_eh_constructs): Ditto.
5632         * regmove.c (rest_of_handle_regmove): Ditto.
5633         (rest_of_handle_stack_adjustments): Ditto.
5634         * local-alloc.c (rest_of_handle_local_alloc): Ditto.
5635         * function.c (instantiate_virtual_regs): Ditto.
5636         (init_function_for_compilation): Ditto.
5637         (rest_of_handle_check_leaf_regs): Ditto.
5638         * gcse.c (rest_of_handle_jump_bypass): Ditto.
5639         (rest_of_handle_gcse): Ditto.
5640         * ipa-type-escape.c (type_escape_execute): Ditto.
5641         * alias.c (rest_of_handle_cfg): Ditto.
5642         * tree-if-conv.c (main_tree_if_conversion): Ditto.
5643         * profile.c (rest_of_handle_branch_prob): Ditto.
5644         * tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
5645         * rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
5646         * bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
5647         * tree-dfa.c (find_referenced_vars): Ditto.
5648         * except.c (set_nothrow_function_flags): Ditto.
5649         (convert_to_eh_region_ranges): Ditto.
5650         (rest_of_handle_eh): Ditto.
5651         * emit-rtl.c (unshare_all_rtl): Ditto.
5652         (remove_unnecessary_notes): Ditto.
5653         * except.h (set_nothrow_function_flags): Ditto.
5654         (convert_to_eh_region_ranges): Ditto.
5655         * cfgexpand.c (tree_expand_cfg): Ditto.
5656         * tree-cfgcleanup.c (merge_phi_nodes): Ditto.
5657         * tree-ssa-pre.c (do_pre): Ditto.
5658         (execute_fre): Ditto.
5659         * cfgcleanup.c (rest_of_handle_jump): Ditto.
5660         (rest_of_handle_jump2): Ditto.
5661         * tree-sra.c (tree_sra): Ditto.
5662         * tree-mudflap.c (execute_mudflap_function_ops): Ditto.
5663         (execute_mudflap_function_decls): Ditto.
5664         * tree-ssa-copy.c (do_copy_prop): Ditto.
5665         (do_store_copy_prop): Ditto.
5666         * ipa-prop.h (ipcp_driver): Ditto.
5667         * cfglayout.c (insn_locators_initialize): Ditto.
5668         * tree-ssa-forwprop.c
5669         (tree_ssa_forward_propagate_single_use_vars): Ditto.
5670         * cfglayout.h (insn_locators_initialize): Ditto.
5671         * tree-ssa-dce.c (tree_ssa_dce): Ditto.
5672         * tree-ssa.c (execute_early_warn_uninitialized): Ditto.
5673         (execute_late_warn_uninitialized): Ditto.
5674         * rtl.h (cleanup_barriers): Ditto.
5675         (split_all_insns_noflow): Ditto.
5676         (purge_line_number_notes): Ditto.
5677         (unshare_all_rtl): Ditto.
5678         (remove_unnecessary_notes): Ditto.
5679         (recompute_reg_usage): Ditto.
5680         (variable_tracking_main): Ditto.
5681         * integrate.c (emit_initial_value_sets): Ditto.
5682         * integrate.h (emit_initial_value_sets): Ditto.
5683         * tree-optimize.c (execute_free_datastructures): Ditto
5684         (execute_free_cfg_annotations): Ditto.
5685         (execute_fixup_cfg): Ditto.
5686         (execute_cleanup_cfg_pre_ipa): Ditto.
5687         (execute_cleanup_cfg_post_optimizing): Ditto.
5688         (execute_init_datastructures): Ditto.
5689         * tree-object-size.c (compute_object_sizes): Ditto.
5690         * combine.c (rest_of_handle_combine): Ditto.
5691         * tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
5692         * bb-reorder.c (duplicate_computed_gotos): Ditto.
5693         (rest_of_handle_reorder_blocks): Ditto.
5694         (rest_of_handle_partition_blocks): Ditto.
5695         * var-tracking.c (variable_tracking_main): Ditto.
5696         * tree-profile.c (tree_profiling): Ditto.
5697         * tree-vect-generic.c (expand_vector_operations): Ditto.
5698         * reg-stack.c (rest_of_handle_stack_regs): Ditto.
5699         * sched-rgn.c (rest_of_handle_sched): Ditto.
5700         (rest_of_handle_sched2): Ditto.
5701         * basic-block.h (free_bb_insn): Ditto.
5702         * tree-ssa-structalias.c (ipa_pta_execute): Ditto.
5703         * tree-cfg.c (execute_build_cfg): Ditto.
5704         (remove_useless_stmts): Ditto.
5705         (split_critical_edges): Ditto.
5706         (execute_warn_function_return): Ditto.
5707         (execute_warn_function_noreturn): Ditto.
5708         * tree-ssa-reassoc.c (execute_reassoc): Ditto.
5709         * cfgrtl.c (free_bb_for_insn): Ditto.
5710         * passes.c (execute_one_pass): Run additional
5711         todos returned by execute function.
5712         * tree-pass.h (struct tree_opt_pass): Make execute
5713         return a value.
5714
5715 2006-03-02  Richard Guenther  <rguenther@suse.de>
5716
5717         * tree-ssa-alias.c (find_used_portions): Consider taking
5718         the address as making the variable not write-only.
5719
5720 2006-03-02  Nick Clifton  <nickc@redhat.com>
5721
5722         * config.gcc (default_use_cxa_atexit): Extend the description of
5723         this configure variable.  Set its default value to "yes" for
5724         Linux, NetBSD and ELF targets on the assumption that they will
5725         use C libraries with the __cxa_atexit function.
5726
5727 2006-03-02  Ben Elliston  <bje@au.ibm.com>
5728
5729         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
5730         parameter as unused to suppress a build warning.
5731
5732 2006-03-02  Ben Elliston  <bje@au.ibm.com>
5733
5734         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
5735         config/dfp-bit.c.
5736
5737 2006-03-01  Roger Sayle  <roger@eyesopen.com>
5738
5739         PR other/26489
5740         * gthr-posix.h (__gthrw2): Define to take three parameters, the
5741         declared name, the weak reference name, and the typeof name.
5742         (__gthrw): Avoid expanding the declared name suffix.
5743         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
5744
5745 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
5746
5747         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
5748         from DWARF 3.
5749         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
5750         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
5751         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
5752         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
5753         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
5754         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
5755         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
5756         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
5757         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
5758         DW_DS_leading_separate, DW_DS_trailing_separate): New.
5759         (DW_END_default, DW_END_big, DW_END_little): New.
5760         (DW_END_lo_user, DW_END_hi_user): Define.
5761         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
5762         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
5763         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
5764         DW_LANG_D): New.
5765
5766 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
5767
5768         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
5769         Update all users.
5770         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
5771         Update all users.
5772         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
5773         Update all users.
5774         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
5775         Update all users.
5776         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
5777         to 'symbol_mem_tag'.
5778         Update all users.
5779         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
5780         rename.
5781
5782 2006-03-01  Roger Sayle  <roger@eyesopen.com>
5783
5784         * builtins.c (fold_builtin_copysign): Delete unreachable code.
5785
5786 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
5787
5788         PR target/25761
5789         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
5790         MACHO_DYNAMIC_NO_PIC_P.
5791         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
5792
5793 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
5794
5795         PR target/26389
5796         * config/darwin-protos.h (darwin_asm_output_anchor):
5797         Declare.
5798         * config/darwin-sections.def (cstring_section):
5799         Add SECTION_MERGE to the flags.
5800         (literal4_section): Likewise.
5801         (literal8_section): Likewise.
5802         (objc_selector_refs_section): Likewise.
5803         (objc_cls_refs_section): Likewise.
5804         * config/darwin.c (darwin_asm_output_anchor): New
5805         function.
5806         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
5807
5808 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
5809
5810         Fix PR tree-optimization/26443
5811         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
5812         to todo and PROP_tmt_usage to properties_destroyed.
5813         * tree-ssa-ccp.c (pass_ccp): Ditto.
5814         (pass_store_ccp): Ditto.
5815         * tree-ssa-dom.c (pass_dominator): Ditto.
5816
5817 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
5818
5819         * tree-ssa-operands.c: Cleanup whitespace.
5820         (get_asm_expr_operands): Move before first invocation.
5821         (get_indirect_ref_operands): Likewise.
5822         (get_tmr_operands): Likewise.
5823         (get_call_expr_operands): Likewise.
5824         (append_def): Likewise.
5825         (append_use): Likewise.
5826         (append_v_may_def): Likewise.
5827         (append_v_must_def): Likewise.
5828         (add_call_clobber_ops): Likewise.
5829         (add_call_read_ops): Likewise.
5830         (add_stmt_operand): Likewise.
5831         (add_virtual_operand): Likewise.
5832         (build_ssa_operands): Likewise.
5833
5834 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
5835
5836         PR middle-end/26022
5837         Revert:
5838         PR middle-end/24437
5839         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
5840         with a call expr to ...
5841         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
5842
5843 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
5844
5845         * tree-vrp.c (extract_range_from_assert): Remove special
5846         handling for types with super-types.
5847
5848 2006-03-01  Ben Elliston  <bje@au.ibm.com>
5849
5850         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
5851         and powerpc64-*-linux* configurations.
5852         * config/t-dfprules: New file.
5853
5854         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
5855         Compile dfp-bit.c from the source directory using -DWIDTH and
5856         $DFP_CFLAGS to control the compilation of that file, rather than
5857         generating width-specific versions in the build directory.
5858         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
5859         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
5860
5861 2006-02-28  Zack Weinberg  <zackw@panix.com>
5862
5863         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
5864         continues to work.
5865
5866 2006-02-28  Eric Christopher  <echristo@apple.com>
5867
5868         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
5869         Set up IN_LIBGCC definition of TARGET_64BIT.
5870         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
5871
5872 2006-02-28  Roger Sayle  <roger@eyesopen.com>
5873
5874         PR middle-end/14752
5875         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
5876         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
5877         cases via the construction of "expr != 0".
5878
5879 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
5880
5881         * alias.c (alias_invariant, alias_invariant_size): Remove.
5882         (record_base_value): Remove.
5883         (memrefs_conflict_p): Don't look at alias_invariant.
5884         (end_alias_analysis): Don't free it.
5885         * alias.h (record_base_value): Remove prototype.
5886
5887 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
5888             Adam Nemet  <anemet@caviumnetworks.com>
5889
5890         * rtl.h (truncated_to_mode): Declare it.
5891         (struct rtl_hooks): Add reg_truncated_to_mode hook.
5892         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
5893         (RTL_HOOKS_INITIALIZER): Include it.
5894         * rtlhooks.c (reg_truncated_to_mode_general): New function.
5895         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
5896         reg_truncated_to_mode.
5897         * rtlanal.c (truncated_to_mode): Define it.
5898         * simplify-rtx.c (simplify_unary_operation_1): Use it.
5899
5900 2006-02-28  Jeff Law  <law@redhat.com>
5901
5902         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
5903         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
5904         the range allowed by TYPE_PRECISION.
5905
5906         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
5907
5908 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
5909
5910         PR tree-optimization/26419
5911         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
5912         values of n.
5913
5914 2006-02-27  Zack Weinberg  <zackw@panix.com>
5915
5916         * doc/md.texi: Fix typo in previous change.
5917
5918 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
5919
5920         * df.c: Remove.
5921
5922 2006-02-27  Zack Weinberg  <zackw@panix.com>
5923
5924         * rtl.def (define_constraint, define_register_constraint)
5925         (define_memory_constraint, define_address_constraint): New MD forms.
5926         * gensupport.c (process_rtx): Put define_constraint etc on the
5927         predicate queue.
5928         * genpreds.c (process_define_predicate): Adjust comment.  Validate
5929         the name, and call validate_exp to validate the expression.
5930         (mark_mode_tests, write_extract_subexp): Can assume correct input.
5931         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
5932         all callers changed.
5933         (validate_exp, needs_variable, struct constraint_data)
5934         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
5935         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
5936         (const_dbl_constraints, constraint_max_namelen)
5937         (have_register_constraints, have_memory_constraints)
5938         (have_address_constraints, have_address_constraints)
5939         (have_extra_constraints, have_const_int_constraints)
5940         (have_const_dbl_constraints, mangle, add_constraint)
5941         (process_define_constraint, process_define_register_constraint)
5942         (write_enum_constraint_num, write_lookup_constraint)
5943         (write_insn_constraint_len, write_regclass_for_constraint)
5944         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
5945         (write_insn_extra_memory_constraint)
5946         (write_insn_extra_address_constraint)
5947         (write_satisfies_constraint_fns): New.
5948         (write_tm_preds_h): If we have new-style constraint definitions,
5949         prototype the functions generated from them, and define the
5950         old constraint interface (still used by generic code) in terms of
5951         those functions.
5952         (write_insn_preds_c): If we have new-style constraint definitions,
5953         generate all relevant functions from those definitions.
5954         (main): Handle define_constraint etc.
5955         * genoutput.c (struct constraint_data, indep_constraints)
5956         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
5957         (mdep_constraint_len): New data structures and functions, defined
5958         #ifdef USE_MD_CONSTRAINTS.
5959         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
5960         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
5961         use new logic to validate operand constraints against constraint
5962         definitions.
5963         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
5964         defined.
5965         * defaults.h: If none of the old-style constraint macros are
5966         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
5967         old-style macros; and poison REG_CLASS_FROM_LETTER,
5968         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
5969         EXTRA_CONSTRAINT.
5970         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
5971         * doc/md.texi: Document new constraint-definition mechanism and the
5972         C interface it provides.  Remove references to old mechanism
5973         elsewhere in the document.
5974         (Machine Constraints): Use pathnames relative to gcc directory,
5975         i.e. config/ARCH/FILE.  Change i386 section to refer to
5976         config/i386/predicates.md; update that section to match docstrings.
5977         * doc/tm.texi: Move all documentation of the old constraint-
5978         definition macros to their own section, clearly mark as obsolete.
5979
5980         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
5981         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
5982         definitions.
5983         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
5984         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
5985         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
5986         constraint strings.
5987         (splits and peepholes): Use satisfies_constraint_*.
5988         * config/i386/i386.c (memory_address_length)
5989         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
5990
5991 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
5992
5993         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
5994         scalar operation to be put back into the loop.
5995
5996 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
5997
5998         PR other/26208
5999         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
6000         (extract_cie_info): Handle S flag in augmentation string.
6001         (execute_cfa_program): If context->signal_frame, execute also
6002         fs->pc == context->ra instructions.
6003         (uw_frame_state_for): If context->signal_frame, don't subtract one
6004         from context->ra to find FDE.
6005         (uw_update_context_1): Set context->signal_frame to
6006         fs->signal_frame.
6007         (_Unwind_GetIPInfo): New function.
6008         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
6009         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
6010         of _Unwind_GetIP.
6011         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
6012         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
6013         * unwind-compat.c (_Unwind_GetIPInfo): New function.
6014         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
6015         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
6016         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
6017         * config/i386/linux-unwind.h (x86_fallback_frame_state,
6018         x86_64_fallback_frame_state): Set fs->signal_frame.
6019         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
6020         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
6021         (frob_update_context): Likewise.  Workaround missing S flag in
6022         Linux 2.6.12 - 2.6.16 kernel vDSOs.
6023         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
6024         Remove the psw_addr + 1 hack.
6025
6026 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
6027
6028         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
6029         with aggregates here.
6030         (find_func_aliases): Remove code for &<aggregate> from here.
6031
6032 2006-02-26  Roger Sayle  <roger@eyesopen.com>
6033
6034         * fold-const.c (fold_binary) <EQ_EXPR>: Fold (~X & C) eq/ne 0 as
6035         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
6036         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
6037         as (X & C) ne/eq 0.
6038
6039 2006-02-26  Roger Sayle  <roger@eyesopen.com>
6040
6041         PR middle-end/19983
6042         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
6043
6044 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
6045
6046         * opts.c (decode_options): Do not handle flag_strength_reduce.
6047         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
6048         and OPT_fstrength_reduce.
6049         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
6050         flag_prefetch_loop_arrays for being nonzero.
6051         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
6052         no-ops.
6053         (fprefetch-loop-arrays-rtl): Removed.
6054         (flag_prefetch_loop_arrays): Do not specify the value.
6055
6056         * doc/passes.texi: Update documentation of loop optimizer
6057         passes.
6058         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
6059         -frerun-loop-opt): Remove.
6060
6061 2006-02-26  Richard Guenther  <rguenther@suse.de>
6062
6063         PR tree-optimization/26421
6064         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
6065         in function calls that are ADDR_EXPRs as using the whole structure.
6066
6067 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
6068
6069         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
6070         * tree-pass.h (pass_loop_optimize): Remove.
6071         * passes.c (pass_loop_optimize): Never run it.
6072         * toplev.c (backend_init): Don't call init_loop.
6073         * opts.c (flag_loop_optimize_set): Remove.
6074         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
6075         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
6076         the old RTL loop optimizer when profiling enabled.
6077         * predict.c (tree_estimate_probability): Always strip builtin_expect.
6078         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
6079         pre-headers for the sake of the old RTL loop optimizer.
6080         * Makefile.in: Remove all references to loop.o.
6081
6082         * doc/invoke.texi: Remove all references to -floop-optimize
6083         and -frerun-loop-opt.
6084
6085 2006-02-26  Zack Weinberg  <zackw@panix.com>
6086
6087         * doc/md.texi (Machine Constraints): Refer to all files with paths
6088         relative to gcc directory (i.e. config/CPU/file).  Add missing
6089         @table @code ... @end table to M32C subsection.
6090
6091 2006-02-26  Roger Sayle  <roger@eyesopen.com>
6092
6093         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
6094         (X & 1) == 0.
6095         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
6096
6097 2006-02-26  Roger Sayle  <roger@eyesopen.com>
6098             James A. Morrison  <phython@gcc.gnu.org>
6099
6100         PR middle-end/21137
6101         * fold-const.c (fold_binary) <EQ_EXPR>: Fold ((X>>C1)&C2) eq/ne 0,
6102         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
6103         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
6104         signedness of the shift operation.
6105
6106 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
6107
6108         PR tree-optimization/26359
6109         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
6110
6111 2006-02-25  Roger Sayle  <roger@eyesopen.com>
6112
6113         * simplify-rtx.c (simplify_relational_operation_1): Simplify
6114         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
6115         as X == 0, and some symmetry related transformations.
6116         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
6117
6118 2006-02-25  Roger Sayle  <roger@eyesopen.com>
6119
6120         PR middle-end/23673
6121         * fold-const.c (fold_binary) <EQ_EXPR>: Fold (X^Y) == 0 as X == Y
6122         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
6123         symmetry related transformations.  Fold (X^C1) == C2 as
6124         X == (C1^C2).
6125
6126 2006-02-25  Juergen Weigert  <jw@suse.de>
6127         Richard Guenther  <rguenther@suse.de>
6128
6129         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
6130
6131 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
6132
6133         * combine.c (gen_lowpart_or_truncate): Call
6134         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
6135
6136 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
6137
6138         * doc/invoke.texi: Move -fopenmp description to "Options for
6139         Code Generation".
6140         Remove reference to -lgomp.
6141
6142 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
6143
6144         * doc/install.texi: Require GNU tar version 1.14.
6145
6146 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
6147
6148         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
6149         * doc/invoke.texi (C++ Dialect Options): Document
6150         -fno-use-cxa-get-exception-ptr.
6151         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
6152         * configure: Regenerate.
6153         * c.opt (fuse-cxa-get-exception-ptr): New.
6154         * c-opts.c (c_common_handle_option): Handle
6155         OPT_fuse_cxa_get_exception_ptr.
6156         * c-common.c (flag_use_cxa_atexit): Update documentation.
6157         (flag_use_cxa_get_exception_ptr): New.
6158         * c-common.h (flag_use_cxa_get_exception_ptr): New.
6159         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
6160         documentation.
6161         (C_COMMON_OVERRIDE_OPTIONS): New.
6162
6163 2006-02-24  Roger Sayle  <roger@eyesopen.com>
6164
6165         PR middle-end/24952
6166         * combine.c (try_combine): Explicitly check whether GET_CODE is
6167         a SET or a CLOBBER, instead on checking that it isn't a USE.
6168
6169 2006-02-24  Roger Sayle  <roger@eyesopen.com>
6170
6171         * fold-const.c (fold_comparison): New subroutine of fold_binary
6172         containing transformations common to both the equality and
6173         ordering relational operators, factored out of fold_binary.
6174         (fold_binary): Separate out the equality operators (EQ_EXPR
6175         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
6176         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
6177         transformations common to both.
6178         (fold_div_compare): Fix latent bugs in the previously unreachable
6179         LT_EXPR and GE_EXPR cases.
6180
6181 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
6182
6183         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
6184         decl libname for clog to __clog on AIX.
6185
6186         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
6187
6188 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
6189
6190         PR target/26453
6191         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
6192         output traceback table for thunks.  Localise rs6000_stack_info call.
6193
6194 2006-02-23  Roger Sayle  <roger@eyesopen.com>
6195             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
6196
6197         * gthr-posix.h (__gthrw): Fix typo in comment.
6198
6199 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
6200
6201         * doc/cpp.texi (Character sets): Document that we do support
6202         input files to be in any character set.
6203
6204 2006-02-23  Jeff Law  <law@redhat.com>
6205
6206         * tree.h (PHI_ARG_NONZERO): Remove.
6207         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
6208         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
6209         node to the new node.
6210
6211         PR tree-optimization/26425
6212         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
6213         min/max, then assume its varying.
6214
6215 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
6216
6217         PR rtl-optimization/26316
6218         * rtlanal.c (enum may_trap_p_flags): New.
6219         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
6220         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
6221         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
6222         (may_trap_after_code_motion_p): New function.
6223         * loop-invariant.c (find_identical_invariants): Fix dump formating.
6224         (find_invariant_insn): Use may_trap_after_code_motion_p.
6225         * rtl.h (may_trap_after_code_motion_p): Declare.
6226
6227 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
6228
6229         * emit-rtl.c (immed_double_const): Cleanup.
6230
6231 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
6232
6233         Fix PR tree-optimization/26376
6234         * tree-ssa-structalias.c (find_func_aliases): Use get_id_for_tree,
6235         remove assert.
6236
6237 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
6238
6239         PR middle-end/26412
6240         * gimplify.c (omp_add_variable): Guard variable size decl test with
6241         DECL_SIZE (decl) check.
6242
6243 2006-02-23  Richard Guenther  <rguenther@suse.de>
6244
6245         PR middle-end/26439
6246         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
6247         like aggregate types.
6248
6249 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
6250
6251         * configure.ac: Add --with{,out}-long-double-128 configure option.
6252         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
6253         * configure: Rebuilt.
6254         * config.in: Rebuilt.
6255         * doc/install.texi (Options specification): Document
6256         --with-long-double-128.
6257
6258         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
6259         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
6260         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
6261         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
6262
6263 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
6264
6265         * config/s390/s390.c (override_options): Handle
6266         TARGET_DEFAULT_LONG_DOUBLE_128.
6267
6268         * config/alpha/alpha.c (override_options): Handle
6269         TARGET_DEFAULT_LONG_DOUBLE_128.
6270
6271         * config/sparc/sparc.c (sparc_override_options): Handle
6272         TARGET_DEFAULT_LONG_DOUBLE_128.
6273
6274 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
6275
6276         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
6277         (real-install-headers-tar, real-install-headers-cpio)
6278         (real-install-headers-cp): New targets.
6279
6280 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
6281
6282         * tree.h (variable_section): Delete.
6283         * varasm.c (variable_section): Delete.
6284
6285 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
6286
6287         * install.texi: Add notes on install.texi2html.
6288         (Building in parallel): Do not use footnotes.
6289
6290 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
6291
6292         PR libgomp/26234
6293         * doc/install.texi (Configuration): Document --disable-libgomp.
6294
6295 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
6296
6297         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
6298
6299 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
6300
6301         * config/i386/sse.md (vec_extractv2df_1_sse): New.
6302         (vec_extractv2df_0_sse): New.
6303
6304 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
6305
6306         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
6307         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
6308         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
6309         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
6310         to the result of the expression.
6311         (def_cfa_1): Adjust.
6312         (frame_pointer_cfa_offset): Rename to...
6313         (frame_pointer_fb_offset): ... this.  Adjust all uses.
6314         (convert_cfa_to_loc_list): Rename to...
6315         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
6316         Pass it on to build_cfa_loc.
6317         (compute_frame_pointer_to_cfa_displacement): Rename to...
6318         (compute_frame_pointer_to_fb_displacement): ... this.  New
6319         offset parameter.  Use it in computation.
6320         (gen_subprogram_die): Compute cfa_fb_offset with the new
6321         macro, and use it to compute the fb loc list and the
6322         displacement.
6323
6324 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
6325
6326         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
6327         replaced with register_operand.
6328         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
6329         non-DREG is expensive.
6330         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
6331         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
6332         involving memory.
6333
6334 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
6335
6336         * doc/install.texi2html: Use set -e.
6337
6338 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
6339
6340         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
6341         (ASM_OUTPUT_SHARED_LOCAL): Delete.
6342         * doc/invoke.texi (-fshared-data): Delete.
6343         * common.opt (fshared-data): Delete.
6344         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
6345         (assemble_static_space): Remove #if 0 code.
6346         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
6347         (ASM_OUTPUT_SHARED_LOCAL): Poison.
6348         * config/cris/cris.h: Remove FIXME.
6349
6350 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
6351
6352         * doc/sourcebuild.texi (Front End Directory): No more double-colon
6353         hooks.
6354
6355 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
6356
6357         PR middle-end/26379
6358         * combine.c (simplify_shift_const_1): Disable nested shifts
6359         optimization for vector shifts.
6360
6361 2006-02-20  Roger Sayle  <roger@eyesopen.com>
6362
6363         PR tree-optimization/26361
6364         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
6365         of unsigned integer types.
6366
6367 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
6368
6369         * tree-chrec.c (eq_evolutions_p): New.
6370         * tree-chrec.h (eq_evolutions_p): Declared.
6371         * tree-data-ref.c: Fix formatting.
6372         (datadep_stats, dependence_stats): New.
6373         (gcd): Moved...
6374         (print_direction_vector): New.
6375         (dump_data_dependence_relation): Use print_direction_vector.
6376         (object_analysis, create_data_ref): Handle COMPONENT_REF.
6377         (compute_subscript_distance): Static.
6378         (initialize_data_dependence_relation): Static.  Get the number
6379         of loops surrounding the references from the callers, and initialize
6380         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
6381         base_object_differ_p analyzers.
6382         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
6383         compute_overlap_steps_for_affine_1_2,
6384         analyze_subscript_affine_affine): Count the classified dependences.
6385         Print a message when a test failed.
6386         (can_use_analyze_subscript_affine_affine): New.
6387         (analyze_siv_subscript): Compute the data dependences on symbolic
6388         scevs that verify can_use_analyze_subscript_affine_affine.
6389         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
6390         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
6391         Handle symbolic scevs.
6392         (analyze_overlapping_iterations): Let symbolic affine scevs to be
6393         analyzed.
6394         (subscript_dependence_tester): Moved...
6395         (build_classic_dist_vector, build_classic_dir_vector): Don't use
6396         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
6397         DDR_SIZE_VECT instead of getting it in parameter.
6398         (subscript_dependence_tester): ... here.  Take as a parameter
6399         loop_nest_depth.  Call build_classic_dist_vector and
6400         build_classic_dir_vector.
6401         (compute_affine_dependence): Update subscript_dependence_tester
6402         parameters.  Update datadep_stats counters.  Call
6403         compute_subscript_distance.
6404         (compute_self_dependence): Save the dist and dir vectors.  Call
6405         compute_subscript_distance.
6406         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
6407         (compute_all_dependences): Reorder parameters as they were before
6408         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
6409         compute_subscript_distance.  Update the use of
6410         compute_affine_dependence and initialize_data_dependence_relation.
6411         (find_data_references_in_loop): Handle COMPONENT_REF.
6412         (compute_data_dependences_for_loop): Initialize dependence_stats.
6413         Don't call build_classic_dist_vector and build_classic_dir_vector.
6414         Update the parameters of initialize_data_dependence_relation and
6415         compute_all_dependences.  Print the statistics from datadep_stats.
6416         (analyze_all_data_dependences): Static.  Not used until the pass for
6417         checking the data dependences is contributed.
6418         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
6419         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
6420         (initialize_data_dependence_relation, compute_affine_dependence,
6421         analyze_all_data_dependences, compute_subscript_distance): Removed.
6422         (print_direction_vector): New.
6423         * lambda.h (gcd): ... here.
6424         (lambda_vector_gcd): Moved here from gcd_vector.
6425         * lambda-code.c (gcd, gcd_vector): Removed.
6426         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
6427         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
6428
6429 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
6430
6431         * ipa-type-escape.c: Tidy some comments and white space.
6432         * tree-ssa-operands.c: Likewise.
6433
6434 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
6435
6436         PR tree-opt/25879
6437         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
6438         (dump_decl_name): Do not walk the decl tree chains.
6439         * tree-pass.h (TDF_CHAIN): Remove.
6440
6441 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
6442
6443         * Makefile.in (C): Remove
6444         (PROTO): Remove
6445         (.PHONY): Remove C and PROTO
6446
6447 2006-02-20  Roger Sayle  <roger@eyesopen.com>
6448
6449         PR middle-end/26236
6450         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
6451         deprecated CHAR_TYPE tree code.
6452
6453 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
6454
6455         * configure.ac (target_list): Add install-info, dvi, html.
6456         * configure: Regenerate.
6457
6458         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
6459         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
6460         treelang/Make-lang.in: Do not use double-colon rules.
6461
6462 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
6463
6464         * tree.h (struct tree_memory_tag): Add is_used_alone member.
6465         (TMT_USED_ALONE): New macro.
6466         * tree-pass.h (PROP_tmt_usage): New property.
6467         (TODO_update_tmt_usage): New todo.
6468         * tree-ssa-alias.c (updating_used_alone): New variable.
6469         (recalculate_used_alone): New function.
6470         (compute_may_aliases): Set updating_used_alone, call
6471         recalculate_used_alone.
6472         * tree-sra.c (pass_sra): Note that this pass destroys
6473         PROP_tmt_usage, and add TODO_update_tmt_usage.
6474         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
6475         * tree-flow.h (updating_used_alone): Prototype.
6476         (recalculate_used_alone): Ditto.
6477         * passes.c (execute_todo): Add code to set updating_used_alone,
6478         and call recalculate.
6479         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
6480         for clobber if used alone, and add assert to verify used_alone
6481         status.
6482
6483 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
6484
6485         * config/s390/s390.c (legitimize_pic_address): Assertions checking
6486         for non tls symbols added.
6487         (legitimize_address): Do nothing for PLUS expressions if one of the
6488         addends is a tls symbol reference.
6489
6490 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
6491
6492         PR bootstrap/25476
6493
6494         * Makefile.in (LDFLAGS): Define from autoconf substitution.
6495
6496         * Makefile.in (BOOTSTRAPPING): New.
6497         (quickstrap): New definition if BOOTSTRAPPING=yes.
6498
6499         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
6500         * configure.ac: Substitute all_selected_languages with the languages
6501         that were configured.  For all the other variables except
6502         lang_specs_files, include all the languages in the tree.
6503         * configure: Regenerate.
6504
6505         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
6506         if there is one.  Run the commands to run fixincludes in the same
6507         subshell.
6508
6509         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
6510         * doc/install.texi: Document exact conventions for searching target tools.
6511         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
6512         something more about building an Ada cross-compiler.  Don't list GNU Make
6513         requirements which affect all platforms.
6514
6515 2006-02-19  Roger Sayle  <roger@eyesopen.com>
6516
6517         PR middle-end/19543
6518         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
6519         only equivalent if the have both the same mode and precision.
6520
6521 2006-02-20  Ben Elliston  <bje@au.ibm.com>
6522
6523         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
6524
6525 2006-02-19  Roger Sayle  <roger@eyesopen.com>
6526             Steven Bosscher  <stevenb.gcc@gmail.com>
6527
6528         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
6529         constant pool references to identify stack mode constants.
6530         * rtlanal.c (constant_pool_constant_p): New predicate to check
6531         whether operand is a floating point constant in the pool.
6532         * rtl.h (constant_pool_constant_p): Prototype here.
6533         * loop.c (scan_loop): Avoid hoisting constants from the constant
6534         pool on STACK_REGS targets.
6535         (load_mems): Likewise.
6536         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
6537         loads into x87 registers expensive in terms of register pressure.
6538
6539 2006-02-19  Roger Sayle  <roger@eyesopen.com>
6540
6541         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
6542         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
6543
6544 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
6545
6546         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
6547         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
6548
6549 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
6550
6551         * doc/invoke.texi: Document -fipa-pta.
6552         * common.opt: Add ipa-pta option.
6553         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
6554         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
6555         (do_ds_constraint): Ditto.
6556         (get_constraint_for): Only add to referenced_vars if
6557         referenced_vars exists.
6558         (insert_into_field_list): Rewrite to do this unsorted.
6559         (insert_into_field_list_sorted): Rename old insert_into_field_list
6560         to this.
6561         (create_function_info_for): Use insert_into_field_list_sorted.
6562         (create_variable_info_for): Rewrite so it uses unsorted version,
6563         since the field list is sorted.
6564         (intra_create_variable_infos): Only add to referenced_vars if
6565         referenced_vars exists.
6566         (ipa_pta_execute): Init heapvars, and delete when done.
6567         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
6568
6569 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6570
6571         * doc/install.texi: Add missing `@samp'.
6572
6573 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
6574
6575         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
6576         Use the arguments.
6577
6578 2006-02-18  Mark Wielaard  <mark@klomp.org>
6579
6580         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
6581         who added new 4.1 features, bug fixes and integration support.
6582
6583 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
6584
6585         PR target/26350
6586         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
6587         MEM for ABI_V4 pic.
6588
6589 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
6590
6591         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
6592         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
6593         (copy_insn_1): Likewise.  Don't copy each field individually.
6594         Reindent.
6595         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
6596         of RTX_SIZE.
6597         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
6598         * rtl.c (rtx_size): Rename variable to...
6599         (rtx_code_size): ...this.
6600         (rtx_size): New function.
6601         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
6602         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
6603         Reindent.
6604         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
6605         * rtl.h (rtx_code_size): New variable.
6606         (rtx_size): Change from a variable to a function.
6607         (RTX_SIZE): Rename to...
6608         (RTX_CODE_SIZE): ...this.
6609
6610         PR target/9703
6611         PR tree-optimization/17106
6612         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
6613         (Anchored Addresses): New section.
6614         * doc/invoke.texi (-fsection-anchors): Document.
6615         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
6616         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
6617         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
6618         * hooks.c (hook_bool_mode_rtx_false): New function.
6619         * hooks.h (hook_bool_mode_rtx_false): Declare.
6620         * gengtype.c (create_optional_field): New function.
6621         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
6622         SYMBOL_REF_IN_BLOCK_P is true.
6623         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
6624         (min_anchor_offset, max_anchor_offset): Likewise.
6625         (use_anchors_for_symbol_p): New hook.
6626         * toplev.c (compile_file): Call output_object_blocks.
6627         (target_supports_section_anchors_p): New function.
6628         (process_options): Check that -fsection-anchors is only used on
6629         targets that support it and when -funit-at-a-time is in effect.
6630         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
6631         if the decl doesn't have one.
6632         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
6633         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
6634         of force_const_mem through use_anchored_address.
6635         (expand_expr_constant): New function.
6636         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
6637         calling expand_expr for INDIRECT_REF.
6638         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
6639         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
6640         * expr.h (use_anchored_address): Declare.
6641         * loop-unroll.c: Don't declare rtx vectors here.
6642         * explow.c: Include output.h.
6643         (validize_mem): Call use_anchored_address.
6644         (use_anchored_address): New function.
6645         * common.opt (-fsection-anchors): New switch.
6646         * varasm.c (object_block_htab, anchor_labelno): New variables.
6647         (hash_section, object_block_entry_eq, object_block_entry_hash)
6648         (use_object_blocks_p, get_block_for_section, create_block_symbol)
6649         (use_blocks_for_decl_p, change_symbol_section): New functions.
6650         (get_variable_section): New function, split out from assemble_variable.
6651         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
6652         use_blocks_for_decl_p say so.  Use change_symbol_section if the
6653         symbol has already been created.
6654         (assemble_variable_contents): New function, split out from...
6655         (assemble_variable): ...here.  Don't output any code for
6656         block symbols; just pass them to place_block_symbol.
6657         Use get_variable_section and assemble_variable_contents.
6658         (get_constant_alignment, get_constant_section, get_constant_size): New
6659         functions, split from output_constant_def_contents.
6660         (build_constant_desc): Create a block symbol if use_object_blocks_p
6661         says so.  Or into SYMBOL_REF_FLAGS.
6662         (assemble_constant_contents): New function, split from...
6663         (output_constant_def_contents): ...here.  Don't output any code
6664         for block symbols; just pass them to place_section_symbol.
6665         Use get_constant_section and get_constant_alignment.
6666         (force_const_mem): Create a block symbol if use_object_blocks_p and
6667         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
6668         (output_constant_pool_1): Add an explicit alignment argument.
6669         Don't switch sections here.
6670         (output_constant_pool): Adjust call to output_constant_pool_1.
6671         Switch sections here instead.  Don't output anything for block symbols;
6672         just pass them to place_block_symbol.
6673         (init_varasm_once): Initialize object_block_htab.
6674         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
6675         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
6676         (place_block_symbol, get_section_anchor, output_object_block)
6677         (output_object_block_htab, output_object_blocks): New functions.
6678         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
6679         (TARGET_ASM_OUT): Include it.
6680         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
6681         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
6682         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
6683         (TARGET_INITIALIZER): Include them.
6684         * rtl.c (rtl_check_failed_block_symbol): New function.
6685         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
6686         (block_symbol, object_block): New structures.
6687         (rtx_def): Add a block_symbol field to the union.
6688         (BLOCK_SYMBOL_CHECK): New macro.
6689         (rtl_check_failed_block_symbol): Declare.
6690         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
6691         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
6692         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
6693         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
6694         * output.h (output_section_symbols): Declare.
6695         (object_block): Name structure.
6696         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
6697         (default_use_anchors_for_symbol_p): Declare.
6698         * Makefile.in (RTL_BASE_H): Add vec.h.
6699         (explow.o): Depend on output.h.
6700         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
6701         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
6702         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
6703         (rs6000_use_blocks_for_constant_p): New function.
6704
6705 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6706
6707         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
6708
6709 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
6710
6711         PR tree-opt/25680
6712         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
6713         IMAGPART_EXPR.
6714
6715 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
6716
6717         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
6718         is_aliased.
6719         Update all users.
6720
6721 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
6722
6723         PR middle-end/26334
6724         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
6725         instead of DECL_REGISTER.
6726
6727 2006-02-18  Olivier Hainque  <hainque@adacore.com>
6728
6729         PR ada/13408
6730         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
6731
6732 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
6733
6734         PR target/24837
6735         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
6736         * opth-gen.awk: Handle Var and InverseMask together.
6737         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
6738         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
6739         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
6740         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
6741         used together.
6742         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
6743         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
6744         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
6745         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
6746         LINUX_DYNAMIC_LINKER): Define.
6747         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
6748         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
6749         TARGET_GLIBC.
6750         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6751         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
6752         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6753         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6754         (TARGET_C99_FUNCTIONS): Don't define.
6755         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
6756         GLIBC_DYNAMIC_LINKER.
6757         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
6758         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
6759         GLIBC_DYNAMIC_LINKER64): Define.
6760         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
6761         LINUX_DYNAMIC_LINKER64.
6762         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6763         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6764         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
6765         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6766         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6767         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6768         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
6769         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
6770         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
6771         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
6772         and LINUX_DYNAMIC_LINKER32.
6773         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6774         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6775         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
6776         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6777         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
6778         TARGET_GLIBC.
6779         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
6780         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
6781         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
6782         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
6783         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
6784         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
6785         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
6786         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
6787         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
6788         LINUX_DYNAMIC_LINKER): Define.
6789         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
6790         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
6791         GLIBC_DYNAMIC_LINKER64): Define.
6792         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
6793         LINUX_DYNAMIC_LINKER64.
6794         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6795         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6796         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
6797         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
6798         LINUX_DYNAMIC_LINKER): Define.
6799         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6800         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
6801         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
6802         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
6803         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
6804         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
6805         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
6806         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
6807         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
6808         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6809         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6810         * doc/invoke.texi (-muclibc): Remove caveat about supported
6811         targets.
6812
6813 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
6814
6815         * doc/cpp.texi (__TIMESTAMP__): Document.
6816
6817 2006-02-17  Roger Sayle  <roger@eyesopen.com>
6818
6819         PR middle-end/25600
6820         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
6821         C is one less than the width of X (and related transformations).
6822         * simplify-rtx.c (simplify_unary_operation_1): Transform
6823         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
6824         depending on STORE_FLAG_VALUE, were C is one less then the
6825         width of X.
6826
6827 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
6828
6829         Fix PR tree-optimization/26341
6830         * tree-ssa-operands.c (add_virtual_operand): Remove assert
6831         about NAME_MEMORY_TAG's.
6832
6833 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6834
6835         PR target/26255
6836         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
6837         with hardware float support, and software float support.  Add fcpy
6838         alternative to hardware patterns.  Add alternatives to copy between
6839         general and floating-point registers to the 32-bit pattern.
6840         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
6841         secondary reload to load a QI or HI mode constant into a floating
6842         point register.
6843         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
6844         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
6845
6846 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
6847
6848         PR target/26272
6849         * config/rs6000/darwin.md (load_macho_picbase_si): Add
6850         pc to the pattern.
6851         (load_macho_picbase_di): Likewise.
6852
6853 2006-02-16  Jeff Law  <law@redhat.com>
6854
6855         * tree-vrp.c (set_value_range_to_nonnegative): New function.
6856         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
6857         (ssa_name_nonzero_p): Likewise.
6858         (get_value_range): Return NULL if VRP is not running.
6859         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
6860         VRP routines do not discover a range.
6861         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
6862         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
6863         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
6864         (tree_expr_nonnegative_p): Similarly.
6865         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
6866         (restore_nonzero_vars_to_original_value): Remove.
6867         (unsafe_associative_fp_binop): Remove.
6868         (tree_ssa_dominator_optimize): Remove initialization and
6869         finalization of nonzero_vars and nonzero_vars_stack.
6870         (dom_opt_initialize_block): No longer push marker on
6871         nonzero_vars_stack.
6872         (dom_opt_finalize_block): No longer call
6873         restore_nonzero_vars_to_original_value.
6874         (record_equivalences_from_phis): No longer look for
6875         nonzero PHI arguments.
6876         (cprop_into_successor_phis): No longer propagate nonzero
6877         property into PHI arguments.  Lose unused argument.  Caller
6878         updated.
6879         (record_equivalences_from_stmt): No longer record nonzero
6880         values for SSA_NAMEs.
6881         (lookup_avail_expr): No longer use nonzero_vars.
6882
6883         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
6884         for sizetype when sizetype is unsigned.
6885
6886 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
6887
6888         PR rtl-optimization/25603
6889         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
6890         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
6891         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
6892         with new meaning of SETS.
6893
6894 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
6895
6896         PR target/20353
6897         PR target/24578
6898         PR target/24837
6899         * config/linux.opt: New file.
6900         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
6901         LINUX_DYNAMIC_LINKER): Define.
6902         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
6903         * config.gcc (*-*-linux*): Define extra_options.
6904         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
6905         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
6906         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
6907         GLIBC_DYNAMIC_LINKER.
6908         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
6909         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6910         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
6911         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
6912         * doc/invoke.texi (GNU/Linux Options): New section.
6913
6914 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
6915
6916         * config/sparc/sparc.md (setjmp): Rewrite.
6917         (setjmp_32): Delete.
6918         (setjmp_64): Likewise.
6919
6920 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
6921
6922         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
6923          previous change.
6924
6925 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
6926
6927         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
6928         read-write uses.
6929
6930 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
6931
6932         PR rtl-optimization/26296
6933         * Makefile.in (loop-invariant.c): Add except.h dependency.
6934         * loop-invariant.c: Include except.h.
6935         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
6936
6937 2005-02-16  Paul Brook  <paul@codesourcery.com>
6938
6939         * reload1.c (emit_reload_insns): Invalidate dead input registers used
6940         for reloads.
6941
6942 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
6943
6944         PR rtl-optimization/25636
6945         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
6946         when deciding whether an insn is an initializing insn.
6947
6948 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
6949
6950         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
6951         (tree_code_size): Ditto.
6952         * tree.h (struct tree_memory_tag): Remove parent_var.
6953         (struct tree_struct_field_tag): New.
6954         (SFT_OFFSET): New.
6955         (SFT_SIZE): New.
6956         (union tree_node): Add sft member.
6957         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
6958         specially here.
6959         (create_sft): Add size and offset argument, set SFT_OFFSET and
6960         SFT_SIZE.
6961         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
6962         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
6963         * tree-flow-inline.h (get_subvar_at): Update for
6964         SFT_OFFSET/SFT_SIZE.
6965         (var_can_have_subvars): Ditto.
6966         (overlap_subvar): Ditto.
6967         * print-tree.c (print_node): Print out interesting things for
6968         SFT's.
6969         * tree-flow.h (struct subvar): Remove offset and size members.
6970         * tree-ssa-operands.c (get_expr_operands): Update for
6971         get_indirect_ref_operands changes.
6972         (get_indirect_ref_operands): Call add_virtual_operand instead of
6973         add_stmt_operand.  Only recurse on base var if requested.
6974         (access_can_touch_variable): New function.
6975         (add_stmt_operand): Split virtual operand handling into ...
6976         (add_virtual_operand): Here.  Add offset, size, and for_clobber
6977         arguments.  Prune alias sets.
6978         (add_call_clobber_ops): Call add_virtual_operand.
6979
6980 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
6981
6982         PR middle-end/26300
6983         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
6984
6985         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
6986         than TREE_CODE as index into omp_clause_num_ops array.
6987
6988 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
6989
6990         PR rtl-optimization/26184
6991         * modulo-sched.c (generate_reg_moves): Free bitmap vector
6992         uses_of_defs.
6993         * modulo-sched.c (sms_schedule): Free g_arr pointer.
6994         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
6995         must_precede, must_follow and tobe_scheduled.
6996
6997         PR other/26147
6998         * opts.c (common_handle_option): Free new_option pointer.
6999         * df-core.c (df_analyze): Free postorder pointer.
7000
7001 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
7002
7003         * Makefile.in: Fix the examples about the use of stamps
7004
7005 2006-02-15  Michael Matz  <matz@suse.de>
7006
7007         PR middle-end/22275
7008
7009         * stor-layout.c (layout_decl): Zero-width bitfields aren't
7010         influenced by maximum_field_alignment or DECL_PACKED.
7011         (update_alignment_for_field): Ditto.
7012         (place_field): Ditto.
7013         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
7014         this behaviour.
7015
7016 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
7017
7018         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
7019         (debug_flow_info): Pass it.
7020         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
7021         * bb-reorder.c (reorder_basic_blocks): Likewise.
7022         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
7023         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
7024         * flow.c (life_analysis, recompute_reg_usage): Likewise.
7025         * gcse.c (gcse_main, bypass_jumps): Likewise.
7026         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
7027         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
7028         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
7029         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
7030         * rtl.h (dump_flow_info): Adjust prototype.
7031         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
7032         * var-tracking.c (variable_tracking_main): Likewise.
7033         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
7034         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
7035         options.
7036
7037 2006-02-15  Marcin Dalecki <martin@dalecki.de>
7038
7039         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
7040         construction.
7041
7042 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
7043
7044         PR tree-optimization/26209
7045         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
7046         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
7047         eh edges.
7048         * tree-cfg.c (replace_uses_by): Do not alter cfg.
7049
7050 2006-02-14  Roger Sayle  <roger@eyesopen.com>
7051
7052         PR middle-end/23670
7053         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
7054         (X,Y) and the corresponding symmetry related transformations.
7055         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
7056         (X,Y) and its symmetry related transformations.
7057
7058 2006-02-14  Roger Sayle  <roger@eyesopen.com>
7059
7060         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
7061         and GEU.
7062
7063 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
7064
7065         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
7066
7067 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
7068
7069         PR bootstrap/26053
7070         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
7071         support COMDAT group.
7072         * configure: Regenerate.
7073
7074 2006-02-14  Roger Sayle  <roger@eyesopen.com>
7075
7076         PR middle-end/26279
7077         PR middle-end/26280
7078         PR middle-end/26283
7079         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
7080
7081 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
7082
7083         Fix PR tree-optimization/26260
7084
7085         * doc/invoke.texi (max-fields-for-field-sensitive): Document
7086         param.
7087         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
7088         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
7089         * tree-ssa-structalias.c (create_variable_info_for): Use
7090         MAX_FIELDS_FOR_FIELD_SENSITIVE.
7091
7092 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
7093
7094         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
7095         Document.
7096         * tree-ssa-loop-niter.c (number_of_iterations_ne,
7097         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
7098         of the ending condition.
7099         * tree-ssa-loop-manip.c: Include params.h.
7100         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
7101         tree_unroll_loop): New functions.
7102         * tree-pass.h (pass_loop_prefetch): Declare.
7103         * loop.c (rest_of_handle_loop_optimize): Test for
7104         -fprefetch-loop-arrays-rtl.
7105         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
7106         * timevar.def (TV_TREE_PREFETCH): New timevar.
7107         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
7108         pass_loop_prefetch): New.
7109         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
7110         (cleanup_tree_cfg_loop): Call scev_reset.
7111         * common.opt (fprefetch-loop-arrays-rtl): Add.
7112         * tree-ssa-loop-prefetch.c: New file.
7113         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
7114         (new_temp_expr_table): Initialize expr_vars.
7115         (free_temp_expr_table): Cleanup expr_vars.
7116         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
7117         expressions from being merged into one.
7118         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
7119         (struct tree_niter_desc): Add control, bound and cmp fields.
7120         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
7121         Declare.
7122         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
7123         (tree-cfgcleanup.o): Add SCEV_H dependency.
7124         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
7125         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
7126
7127 2006-02-14  Richard Guenther  <rguenther@suse.de>
7128
7129         PR tree-optimization/26258
7130         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
7131         in PHI argument processing.
7132
7133 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
7134
7135         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
7136         new expression in the requested machine mode.
7137
7138 2006-02-13  Roger Sayle  <roger@eyesopen.com>
7139
7140         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
7141         directly, instead let do_compare_rtx_and_jump handle this for us.
7142         * expr.c (expand_expr_real_1): Likewise.
7143         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
7144         before do_jump_by_parts_greater.
7145         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
7146         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
7147
7148 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7149
7150         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
7151
7152 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
7153
7154         PR rtl-optimization/26235
7155         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
7156         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
7157         format.
7158
7159 2006-02-13  Jeff Law  <law@redhat.com>
7160
7161         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
7162         TRUTH_XOR_EPR.
7163
7164 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
7165
7166         PR middle-end/26092
7167         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
7168         twice if decl is a builtin.  When trying again, call get_callee_fndecl
7169         first to verify it is still a builtin.
7170
7171 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
7172
7173         * dwarf2out.c (base_type_die): Don't add AT_name here.
7174         (subrange_type_die): Don't add AT_name here.
7175         (modified_type_die): Rearrange code flow.  Do add AT_name here.
7176
7177 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
7178
7179         PR rtl-optimization/26247
7180         PR rtl-optimization/26248
7181         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
7182
7183 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
7184
7185         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
7186         * config/fixtfdi.c: Likewise.
7187         * config/fixunstfdi.c: Likewise.
7188         * config/floatditf.c: Likewise.
7189
7190 2006-02-13  Roger Sayle  <roger@eyesopen.com>
7191
7192         PR middle-end/24427
7193         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
7194         into (X,C2) if C1 is a subset of the bits of C2.  Transform
7195         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
7196         (X&(C1&~C2))|C2.
7197         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
7198
7199 2006-02-13  Josh Conner  <jconner@apple.com>
7200
7201         PR target/25376
7202         * varasm.c (function_section): Check for section name before
7203         calling select_section on targets that define
7204         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
7205         unlikely_text_section instead of hot_function_section if
7206         first_function_block_is_cold.
7207
7208 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
7209
7210         PR middle-end/25335
7211         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
7212
7213 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
7214
7215         PR rtl-optimization/26222
7216         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
7217         after tree->rtl expansion.
7218         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
7219         before passing it to emit_move_insn.
7220
7221 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7222
7223         * doc/invoke.texi (-Write-strings): Document that it is enabled by
7224         default.
7225         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
7226         Clarify documentation.
7227         * c-common.h (warn_write_strings): Remove.
7228         * c-common.c (warn_write_strings): Likewise.
7229         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
7230         default for C++.
7231
7232 2006-02-12  Roger Sayle  <roger@eyesopen.com>
7233
7234         PR middle-end/25724
7235         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
7236         (do_jump_parts_zero_rtx): New function renamed from
7237         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
7238         (do_jump_parts_equality_rtx): New function split out from
7239         do_jump_parts_equality.  Old implementation renamed as above.
7240         Call do_jump_parts_zero_rtx if either operand is zero.
7241         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
7242         do all of the heavy lifting.
7243         (do_compare_rtx_and_jump): Handle multi-word comparisons by
7244         calling either do_jump_by_parts_greater_rtx or
7245         do_jump_by_parts_equality_rtx.
7246         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
7247         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
7248         moved to do_compare_rtx_and_jump, call it directly.
7249         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
7250         mode argument.  Call do_compare_rtx_and_jump.
7251         (emit_case_nodes): Update calls to do_jump_if_equal.
7252
7253 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
7254
7255         PR rtl-optimization/26225
7256         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
7257
7258 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
7259
7260         PR rtl-optimization/26232
7261         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
7262
7263 2006-02-11  Jason Merrill  <jason@redhat.com>
7264
7265         PR tree-opt/24365
7266         * tree-inline.c (declare_return_variable): Just don't use the
7267         modify target if it's a gimple complex reg and the return slot
7268         isn't.
7269
7270 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
7271
7272         * doc/contrib.texi: Update my entry.
7273
7274 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
7275
7276         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
7277
7278 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
7279
7280         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
7281         expensive.
7282
7283 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
7284
7285         * doc/invoke.texi (-floop-optimize2): Removed.
7286         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
7287         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
7288         Test flag_branch_on_count_reg only if HAVE_doloop_end.
7289         * common.opt (floop-optimize2): Removed.
7290         (fmove-loop-invariants): Enabled by default.
7291
7292 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
7293
7294         * tree-if-conv.c (combine_blocks): Free the result of
7295         get_loop_exit_edges.
7296
7297 2006-02-10  Jeff Law  <law@redhat.com>
7298
7299         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
7300
7301         PR tree-optimization/26213
7302         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
7303         loop trying to follow SSA_NAME_VALUE chains.
7304
7305 2006-02-10  Richard Guenther  <rguenther@suse.de>
7306
7307         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
7308         deal with structures that end in implicitly variable sized arrays.
7309
7310 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
7311
7312         PR rtl-optimization/24762
7313         * df-scan.c (df_bb_refs_record): Record correct registers defined on
7314         eh edges.
7315
7316 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
7317
7318         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
7319         (struct ivopts_data): Add regs_used field.
7320         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
7321         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
7322         instead of loop_data->regs_used;
7323         (free_loop_data): Do not free aux fields for loops.
7324         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
7325         and tree_ssa_iv_optimize_finalize.
7326
7327 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
7328
7329         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
7330
7331 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
7332
7333         PR target/26141
7334         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
7335         computing the effective result type.
7336
7337 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
7338
7339         PR inline-asm/16194
7340         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
7341         (tree_overlaps_hard_reg_set): Declare.
7342         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
7343         type and signature to match function type expected by walk_tree.
7344         (tree_overlaps_hard_reg_set): New function.
7345         (decl_conflicts_with_clobbers_p): Rename to:
7346         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
7347         Use tree_overlaps_hard_reg_set.  Changed caller.
7348         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
7349         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
7350         * cris.c (cris_md_asm_clobbers): Likewise.
7351
7352 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
7353
7354         * reload1.c (emit_input_reload_insns): Delete code that tries to
7355         inherit using find_equiv_reg.
7356
7357 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
7358
7359         * c-common.h (flag_const_strings): Don't declare.
7360         * c-common.c (flag_const_strings): Remove.
7361         * c.opt (fconst_strings): Remove.
7362         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
7363         <OPT_Wwrite_strings>: Don't set flag_const_strings.
7364         (c_common_init_options): Don't set flag_const_strings.
7365         * doc/invoke.texi (-fno-const-strings): Remove documentation.
7366
7367 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
7368
7369         * arm.md (tlobits_cbranch): New pattern.
7370         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
7371         testing a single bit.
7372
7373 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
7374
7375         PR tree-opt/26179
7376         * tree-ssa-pre.c (create_component_ref_by_pieces):
7377         Handle RETURN_DECL like VAR_DECL.
7378
7379 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
7380
7381         PR middle-end/26134
7382         * fold-const.c (fold_indirect_ref_1): Fold
7383         "*(foo *)&complexfoo" to "__real__ complexfoo"
7384         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
7385
7386 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
7387
7388         * tree-flow-inline.h (var_can_have_subvars):
7389         Volatile variables should not have subvariables.
7390
7391 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
7392
7393         PR 26180
7394         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
7395         multiplying unsigned values.
7396         Tidy comments.
7397
7398 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
7399
7400         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
7401
7402 2006-02-08  Jason Merrill  <jason@redhat.com>
7403
7404         PR c++/25979
7405         * tree.def: Elaborate on difference from MODIFY_EXPR.
7406         * doc/c-tree.texi (INIT_EXPR): Likewise.
7407         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
7408         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
7409         (gimplify_target_expr): Likewise.
7410         (gimplify_cond_expr): Remove target handling.
7411         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
7412         (gimplify_expr): Clobber it here.
7413         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
7414         Do return slot optimization if we have an INIT_EXPR.
7415
7416         PR tree-opt/24365
7417         * tree-inline.c (declare_return_variable): Also clear
7418         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
7419
7420         PR c++/16405
7421         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
7422
7423         PR middle-end/22439
7424         * gimplify.c (gimplify_one_sizepos): Fix typo.
7425
7426 2006-02-08  Jeff Law  <law@redhat.com>
7427
7428         PR tree-optimization/21417
7429         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
7430         across a backedge if the control statement at the end of the
7431         block is data dependent on other statements in the same block.
7432         (record_temporary_equivalences_from_stmts): Remove over-conservative
7433         test for threading across backedges.
7434
7435         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
7436         control statement, handle all three special cases in the same
7437         manner as they all have the same desired solution.  No longer
7438         special case edge flag updating when the post dominator is
7439         the exit block.
7440
7441 2006-02-08  Roger Sayle  <roger@eyesopen.com>
7442
7443         * tree.def (CHAR_TYPE): Remove.
7444         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
7445         * dwarf2out.c (base_type_die, is_base_type): Likewise.
7446         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
7447         (gen_string_type_die): Delete unreachable function.
7448
7449         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
7450         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
7451         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
7452         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
7453         * builtins.c (type_to_class): Likewise.
7454         * fold-const.c (fold_convert, build_range_check,
7455         merge_ranges): Likewise.
7456         * expr.c (count_type_elements): Likewise.
7457         * c-pretty-print.c (pp_c_type_specifier): Likewise.
7458         * stor-layout.c (layout_type): Likewise.
7459         * ipa-type-escape.c (type_to_consider): Likewise.
7460         * gimplify.c (omp_firstprivatize_type_sizes,
7461         gimplify_type_sizes): Likewise.
7462         * explow.c (promote_mode): Likewise.
7463         * tree-sra.c (is_sra_scalar_type): Likewise.
7464         * varasm.c (output_constant): Likewise.
7465         * tree-inline.c (remap_type_1): Likewise.
7466         * convert.c (convert_to_pointer, convert_to_real,
7467         convert_to_integer, convert_to_complex): Likewise.
7468
7469 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
7470
7471         * df-scan.c (df_def_record_1): A set destination may
7472         be a parallel regardless of mode.
7473
7474 2006-02-08  Roger Sayle  <roger@eyesopen.com>
7475
7476         PR target/22209
7477         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
7478         * config/mips/_tilib.c: Remove.
7479         * config/fixtfdi.c: New libgcc source file.
7480         * config/fixunstfdi.c: New source file.
7481         * config/floatditf.c: New source file.
7482         * config/floatunditf.c: New souce file.
7483         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
7484         files above instead of config/mips/_tilib.c.
7485         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
7486
7487 2006-02-08  Jeff Law  <law@redhat.com>
7488
7489         PR tree-optimization/26169
7490         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
7491         threading jumps.
7492
7493 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
7494
7495         * df.h (DF_REG_SIZE): Return the length of the initialized
7496         part of the array.
7497
7498 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
7499
7500         * config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
7501         __muldf3): Return a correctly signed zero.
7502
7503 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
7504
7505         * passes.c (register_one_dump_file): Accept the current properties
7506         instead of pass number.  Adjust call to dump_register.  Remove
7507         duplicated code.
7508         (register_dump_files): Now a wrapper around...
7509         (register_dump_files_1): ... this one.  Do not modify the pass
7510         structure.
7511         (next_pass_1): Cosmetic fix.
7512         (execute_todo): Keep second parameter only.  Use curr_properties
7513         instead of fetching it from the pass structure.  Check and set
7514         last_verified.
7515         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
7516         instead of fetching it from the pass structure.  Fix calls to
7517         execute_todo.  Update curr_properties and initialize .vcg RTL dump
7518         after running the pass.  Reset last_verified.
7519         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
7520         at the beginning.
7521         (FIRST_AUTO_NUMBERED_DUMP): New.
7522         (dump_register): Remove "num" parameter, assign it within the
7523         function.
7524         (get_dump_file_name): Modify template for dumps.
7525         * tree-dump.h (dump_register): Adjust prototype.
7526         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
7527         (PROP_trees): Add PROP_gimple_lomp.
7528         (TODO_set_props): New.
7529         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
7530         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
7531         * cfgexpand.c (pass_expand): Destroy PROP_trees.
7532
7533 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
7534
7535         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
7536         (sparc64-*-linux*): Likewise.
7537         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
7538         * config/sparc/t-linux: New file.
7539         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
7540         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
7541         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
7542         -m32 -mlong-double-128.
7543
7544         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
7545         * config/alpha/t-linux: New file.
7546         * config/alpha/libgcc-alpha-ldbl.ver: New file.
7547
7548         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
7549         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
7550         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
7551         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
7552         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
7553         (CPP_ARCH32_SPEC): Remove.
7554
7555 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
7556
7557         PR tree-optimization/26145
7558         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
7559         bbs pointer.
7560
7561 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7562
7563         PR target/26109
7564         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
7565         >= 240000 when generating code for SOM runtime.
7566         (output_indirect_call): Don't use "b,l" instruction for indirect calls
7567         to $$dyncall when generating code for SOM runtime..
7568
7569 2006-02-07  Dirk Mueller  <dmueller@suse.com>
7570
7571         PR c++/18150
7572         * doc/invoke.texi (-Wsequence-point): Update documentation
7573         that -Wsequence-point is implemented for C++ as well.
7574
7575 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
7576
7577         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
7578         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
7579         (LIB_SPEC): Likewise.
7580         * doc/invoke.texi (SPARC options): Document -pthread.
7581
7582 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
7583
7584         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
7585         PIC addresses.
7586
7587 2006-02-07  Roger Sayle  <roger@eyesopen.com>
7588
7589         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
7590         Correct comment describing BOOLEAN_TYPE.
7591
7592 2006-02-07  Dirk Mueller  <dmueller@suse.com>
7593
7594         * c.opt: C++ frontend supports -Wdiv-by-zero.
7595         * c-opts.c (c_common_handle_option): Remove dead case.
7596
7597 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
7598
7599         * configure.ac (TLS assembler check): Do not enable TLS by
7600         default on SPARC/Solaris before version 10.
7601         * configure: Regenerate.
7602
7603 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
7604
7605         * doc/invoke.texi (xl-compat): Document conversion and support
7606         routine names.
7607
7608 2006-02-07  Jeff Law  <law@redhat.com>
7609
7610         * tree-vrp.c (find_conditional_asserts): Update comments.
7611         (simplify_stmt_for_jump_threading): New.
7612         (identify_jump_threads, finalize_jump_threads): New.
7613         (vrp_finalize): Call identify_jump_threads.
7614         (execute_vrp): Call finalize_jump_threads.
7615         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
7616         (vrp_element, vrp_data, vrp_element_p): Remove.
7617         (vrp_hash_elt, vrp_variables_stack): Remove.
7618         (vrp_hash, vrp_eq, record_range): Remove.
7619         (simplify_cond_and_lookup_avail_expr): Remove.
7620         (extract_range_from_cond): Remove.
7621         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
7622         (simplify_stmt_for_jump_threading): New.
7623         (dom_thread_across_edge): New wrapper.
7624         (tree_ssa_dominator_optimize): No longer initialize or
7625         finalize any of the VRP datastructures.  Remove iteration
7626         step and simplify as a result of removal of iteration step.
7627         (pass_dominator): Perform a cfg cleanup after DOM.
7628         (dom_opt_finalize_block): Use the new common routines
7629         for threading jumps.  Simplify stack management slightly.
7630         No longer need to unwind VRP state.
7631         (record_equivalences_from_incoming_edge): No longer record
7632         VRP information.
7633         (eliminate_redundant_computations): No longer call
7634         simplify_cond_and_lookup_avail_expr.
7635         * tree-flow.h (potentially_threadable_block): Prototype.
7636         (thread_across_edge): Likewise.
7637         * Makefile.in (OBJS-common): Add tree-ssa-threadedge.o
7638         (tree-ssa-threadedge.o): Add dependencies.
7639         * tree-ssa-threadedge.c: New file.
7640         * passes.c (init_optimization_passes): Merge PHIs before
7641         calling VRP.  Run VRP again late in the SSA optimization pipeline.
7642
7643 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
7644
7645         * df-core.c (df_set_blocks): Do not dereference function pointers.
7646         (df_finish1): Likewise.
7647         (df_hybrid_search_forward): Likewise.
7648         (df_hybrid_search_backward): Likewise.
7649         (df_iterative_dataflow): Likewise.
7650         (df_analyze_problem): Likewise.
7651         (df_compact_blocks): Likewise.
7652         (df_dump): Likewise.
7653         * df-scan.c (df_rescan_blocks): Likewise.
7654         (df_record_entry_block_defs): Likewise.
7655
7656         * genconditions.c (write_conditions): Guard the definition of
7657         'insn_conditions' with the check on GCC version.
7658         (write_writer): Guard the traversal 'insn_conditions' with
7659         the check on GCC version.
7660
7661 2006-02-07  Richard Guenther  <rguenther@suse.de>
7662
7663         PR c++/26140
7664         Revert
7665         2006-01-30  Richard Guenther  <rguenther@suse.de>
7666         PR c++/23372
7667         * gimplify.c (gimplify_target_expr): Handle easy cases
7668         without creating a temporary.
7669
7670 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
7671
7672         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
7673         use of float in probability computations.  Use edge probabilities
7674         in place of statically computed probabilities.
7675         (min_spec_prob): New static variable.
7676         (schedule_insns): Initialize it.
7677         (GET_SRC_PROB): Removed.
7678         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
7679
7680 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
7681
7682         PR debug/24444
7683         * config/ia64/unwind-ia64.c: Revert last change.
7684         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
7685         (INCOMING_FRAME_SP_OFFSET): Define.
7686
7687 2006-02-06  Roger Sayle  <roger@eyesopen.com>
7688
7689         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
7690
7691 2006-02-07  Ben Elliston  <bje@au.ibm.com>
7692
7693         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
7694         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
7695         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
7696         (ix86_return_in_memory): Handle TDmode.
7697         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
7698         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
7699
7700 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
7701
7702         * reorg.c (dbr_schedule): Use dump_file instead of file.
7703
7704 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
7705
7706         PR target/25917
7707         * config/ia64/predicates.md (extr_len_operand): New predicate.
7708         * config/ia64/ia64.md (extv): Tighten constraints.
7709         (extzv): Ditto.
7710         (*tbit_and_2): Ditto.
7711         (*tbit_and_3): Ditto.
7712         (*tbit_or_2): Ditto.
7713         (*tbit_or_3): Ditto.
7714         (*bit_zero): Ditto.
7715         (*bit_one): Ditto.
7716
7717 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
7718
7719         PR target/23359
7720         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
7721
7722 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
7723
7724         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
7725         loop_optimizer_init and loop_optimizer_finalize
7726         * tree-ssa-sink.c (execute_sink_code): Ditto.
7727         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
7728         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
7729         tree_ssa_loop_done): Ditto.
7730         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
7731         * sched-ebb.c: Include output.h.
7732         (schedule_ebbs): Do not use dump argument.
7733         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
7734         * loop.c (loop_dump_stream): Removed.
7735         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
7736         argument.
7737         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
7738         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
7739         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
7740         loop_iterations, strength_reduce, record_biv, record_giv,
7741         final_giv_value, check_final_value, check_ext_dependent_givs,
7742         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
7743         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
7744         dump_file instead of loop_dump_stream.
7745         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
7746         argument dump_file.
7747         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
7748         dump argument.
7749         * flow.c (life_analysis, rest_of_handle_life): Ditto.
7750         * haifa-sched.c: Include output.h
7751         (schedule_insns, sched_init): Do not use dump argument.
7752         * mode-switching.c (optimize_mode_switching): Ditto.
7753         * modulo-sched.c (stats_file): Removed.
7754         (print_node_sched_params): Do not call argument dump_file.
7755         (sms_schedule_by_order, loop_canon_p, sms_schedule,
7756         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
7757         of stats_file.
7758         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
7759         use dump argument.
7760         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
7761         rtl_loop_init, rtl_loop_done): Ditto.
7762         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
7763         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
7764         Ditto.
7765         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
7766         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
7767         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
7768         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
7769         * emit-rtl.c (renumber_insns): Ditto.
7770         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
7771         expand_gimple_basic_block, tree_expand_cfg): Ditto.
7772         * regclass.c (regclass): Ditto.
7773         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
7774         remove_ssa_form, rewrite_out_of_ssa): Ditto.
7775         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
7776         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
7777         Ditto.
7778         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
7779         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
7780         to regclass.
7781         * gcse.c (gcse_file, debug_stderr): Removed.
7782         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
7783         rest_of_handle_gcse): Do not use dump argument.
7784         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
7785         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
7786         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
7787         compute_code_hoist_vbeinout, compute_code_hoist_data,
7788         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
7789         compute_store_table, build_store_vectors, insert_insn_start_bb,
7790         insert_store, remove_reachable_equiv_notes, replace_store_insn,
7791         store_motion): Use dump_file instead of gcse_file.
7792         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
7793         * profile.c (profile_dump_file): Removed.
7794         (branch_prob): Use dump_file instead of profile_dump_file.
7795         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
7796         dump_file.
7797         * tree-ssa-copy.c (dump_copy_of): Ditto.
7798         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
7799         dump file to life_analysis.
7800         * bt-load.c (branch_target_load_optimize): Ditto.
7801         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
7802         renumber_insns.
7803         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
7804         regclass, dbr_schedule): Declaration changed.
7805         * sched-int.h (sched_init): Declaration changed.
7806         * tree-profile.c (tree_profile_dump_file): Removed.
7807         (tree_profile_hooks): Removed profile_dump_file hook.
7808         * rtl-profile (rtl_profile_dump_file): Removed.
7809         (rtl_profile_hooks): emoved profile_dump_file hook.
7810         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
7811         changed.
7812         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
7813         * tree-cfg.c (build_tree_cfg): Ditto.
7814         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
7815         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
7816         Declaration changed.
7817         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
7818         life_analysis and schedule_insns.
7819         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
7820         life_analysis.
7821         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
7822         dbr_schedule.
7823         * config/mips/mips.c (mips_reorg): Ditto.
7824         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
7825         schedule_ebbs.
7826
7827 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
7828
7829         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
7830         (s390_mangle_fundamental_type): New.
7831         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
7832         Define.
7833
7834         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
7835         (alpha_mangle_fundamental_type): New.
7836         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
7837         Define.
7838
7839         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
7840         Define.
7841         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
7842         Define.
7843         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
7844         (sparc_mangle_fundamental_type): New.
7845
7846 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
7847
7848         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
7849         (s390x-*-linux*): Likewise.
7850         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
7851         * config/s390/t-linux: New file.
7852
7853 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
7854
7855         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
7856         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
7857
7858 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
7859
7860         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
7861         (ANTIC_SAFE_LOADS): New macro.
7862         (find_or_generate_expression): Add prototype.
7863         (set_contains_value): Allow null set for sake of not always having
7864         to allocate ANTIC_SAFE_LOADS.
7865         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
7866         Allow COMPONENT_REF too.
7867         (valid_in_set): Allow COMPONENT_REF.
7868         Check ANTIC_SAFE_LOADS too.
7869         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
7870         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
7871         rename.
7872         (can_PRE_operation): Add COMPONENT_REF.
7873         (create_component_ref_by_pieces): New function.
7874         (create_expression_by_pieces): Use create_component_ref_by_pieces.
7875         (insert_aux): Move AGGREGATE_TYPE_P check here.
7876         (compute_avail): Set bb local stmt uids.
7877         (pass_pre): Use TODO_update_ssa_only_virtuals.
7878
7879 2006-02-06  Ben Elliston  <bje@au.ibm.com>
7880
7881         * configure.ac: Unconditionally disable decimal float by default.
7882         * configure: Regenerate.
7883
7884 2006-02-06  Ben Elliston  <bje@au.ibm.com>
7885
7886         * read-rtl.c (read_name): Terminate reading on EOF.
7887
7888 2006-02-06  Ben Elliston  <bje@au.ibm.com>
7889
7890         * dfp.c (decimal_real_arithmetic): Change second argument type
7891         from int to enum tree_code. Do not always return true, but now
7892         return result of any call to decimal_do helper functions.
7893         * dfp.h (decimal_real_arithmetic): Update prototype.
7894
7895 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
7896
7897         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
7898
7899 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
7900
7901         PR tree-opt/25251
7902         * tree-cfg.c (cleanup_dead_labels): Also don't remove
7903         forced labels.
7904
7905 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
7906
7907         * tree-vrp.c (cfg_loops): Removed.
7908         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
7909         Use current_loops instead of cfg_loops.  Pass flags to
7910         loop_optimizer_init.
7911         * cfgloopmanip.c (fix_loop_structure): Update only available
7912         information.
7913         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
7914         loop_optimizer_init.
7915         * modulo-sched.c (build_loops_structure): Removed.
7916         (sms_schedule): Use loop_optimizer_init.
7917         * loop-init.c (loop_optimizer_init): Use flags to determine
7918         which properties of loops to prepare.
7919         (rtl_loop_init): Pass flags to loop_optimizer_init.
7920         * tree-ssa-sink.c (execute_sink_code): Ditto.
7921         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
7922         * tree-ssa-pre.c (init_pre): Ditto.
7923         * cfgloop.h (LOOPS_NORMAL): New.
7924         (loop_optimizer_init): Declaration changed.
7925
7926 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7927
7928         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
7929         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
7930         pa/t-pa.
7931         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
7932         pa/t-pa.
7933         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
7934         pa/x-ada.
7935         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
7936         * pa/t-pa64: Delete quadlib.c rule.
7937         * pa/x-ada: Revert last change.
7938         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
7939
7940 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
7941
7942         PR rtl-optimization/26087
7943         * rtlanal.c (canonicalize_condition): Do not cross basic block
7944         boundaries.
7945
7946 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
7947
7948         PR debug/24444
7949         * config/ia64/ia64.c: Include debug.h.
7950         (MAX_ARTIFICIAL_LABEL_BYTES): New.
7951         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
7952         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
7953         (process_epilogue, process_set, process_for_unwind_directive):
7954         Output unwind info only if requested.  Add CFA info if requested.
7955         Add new arguments as needed.  Adjust callers.
7956         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
7957         incorrect default.
7958         (DWARF2_FRAME_INFO): Define to zero.
7959         * config/ia64/unwind-ia64.c: Remove code that compensated for
7960         the CFA offset error fixed above.
7961         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
7962         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
7963         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
7964         -funwind-tables and -fexceptions to enable frame info.
7965         (dwarf2out_frame_init): Define initial CFA even if
7966         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
7967         DWARF2_UNWIND_INFO is nonzero, not just defined.
7968         (dwarf2out_frame_finish): Output non-EH call frame info only
7969         if DWARF2_FRAME_INFO is nonzero.
7970         (convert_cfa_to_loc_list,
7971         compute_frame_pointer_to_cfa_displacement): Define even if
7972         unwind info is not supported.
7973         (gen_subprogram_die): Use the above unconditionally.  Remove
7974         legacy alternate code.
7975         * toplev.c (compile_file): Compile in call to
7976         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
7977         (lang_dependent_init): Ditto for dwarf2out_frame_init.
7978
7979 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
7980             Jakub Jelinek  <jakub@redhat.com>
7981
7982         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
7983         IBM extended float format long double as "g" on powerpc*-linux.
7984
7985 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7986
7987         PR target/25926
7988         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
7989         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
7990
7991 2006-02-03  Jason Merrill  <jason@redhat.com>
7992
7993         PR c++/25979
7994         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
7995
7996         PR middle-end/25977
7997         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
7998         on the return slot if it's an NRV.
7999
8000 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
8001
8002         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
8003         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
8004         rewrite_use): Do not handle USE_OUTER.
8005         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
8006         add_iv_outer_candidates, may_replace_final_value,
8007         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
8008         (find_interesting_uses_op): Functionality of
8009         find_interesting_uses_outer_or_nonlin moved here.
8010         (find_interesting_uses_outside): Use find_interesting_uses_op.
8011
8012 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
8013
8014         PR target/25960
8015         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
8016
8017 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
8018             Ulrich Weigand  <uweigand@de.ibm.com>
8019
8020         PR target/25864
8021         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
8022         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
8023         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
8024         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
8025         and dxr fields.
8026         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
8027         (s390_rtx_costs): Use the new fields to calculate rtx costs.
8028         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
8029         Define secondary reloads for TFmode moves.
8030         (constant_modes): Add TFmode.
8031         (NR_C_MODES): Set to 8.
8032         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
8033         builtin define.
8034         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
8035         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
8036         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
8037         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
8038         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
8039         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
8040         (FPR mode macro): Add TFmode.
8041         (DSF mode macro): New.
8042         (<de>, <dee> mode attributes): Removed.
8043         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
8044         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
8045         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
8046         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
8047         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
8048         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
8049         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
8050         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
8051         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
8052         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
8053         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
8054         "*negabs<mode>2", "sqrt<mode>2"):
8055         Changed <de> to <xde>. R constraint replaced by <Rf>.
8056         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
8057         <Rf>.
8058         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
8059         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
8060         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
8061         splitters.
8062         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
8063         "extenddftf2", "extendsftf2"): New expanders.
8064         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
8065         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
8066         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
8067         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
8068         New options.
8069         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
8070         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
8071         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
8072         __floatditf): Add a GCC_4.1.0 symbol version tag.
8073         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
8074         the new options.
8075
8076 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
8077
8078         PR target/25377
8079         * config/i386/i386.c (ix86_function_ok_for_sibcall):
8080         Use targetm.binds_local_p instead of TREE_PUBLIC.
8081
8082 2006-02-02  Roger Sayle  <roger@eyesopen.com>
8083
8084         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
8085         on INTEGER_TYPEs to indicate that it denotes a character type.
8086         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
8087         signed_char_type_node, unsigned_char_type_node and char_type_node.
8088         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
8089         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
8090         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
8091
8092 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
8093             Daniel Berlin  <dberlin@dberlin.org>
8094
8095         * tree-tailcall.c (arg_needs_copy_p): New function.
8096         (eliminate_tail_call): Use arg_needs_copy_p.
8097         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
8098         (add_virtual_phis): New function.
8099
8100 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
8101
8102         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
8103         #ignore instead of #scratch for %g7 .register directive.
8104
8105 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
8106
8107         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
8108         object files.
8109
8110 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
8111
8112         * flow.c (calculate_global_regs_live): Assert that there aren't any
8113         EDGE_FAKE edges.
8114
8115 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
8116
8117         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
8118         what its name says.
8119         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
8120         bsi_after_labels iterator.
8121         * tree-if-conv.c (find_phi_replacement_condition,
8122         replace_phi_with_cond_modify_expr): Likewise.
8123         * tree-scalar-evolution.c (scev_const_prop): Likewise.
8124         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
8125
8126 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
8127
8128         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
8129
8130 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
8131
8132         PR 25990
8133         * tree-cfg.c (move_block_to_fn): Clear out the basic block
8134         array after growing it.
8135
8136 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
8137
8138         PR middle-end/24901
8139         * fold-const.c (fold_checksum_tree): Change type of buf.
8140
8141 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
8142
8143         * reload.c (push_secondary_reload): Initialize t_icode.
8144
8145 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
8146
8147         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
8148         -msoft-float -mlong-double-128 only issue a warning, but don't
8149         swich to DFmode long double.
8150
8151 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
8152
8153         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
8154         has a constant equivalent, iterate over equivalents for arg0,
8155         calling simplify_relational_operation and if there's a result
8156         cheaper than X, apply fold_rtx and return the result.
8157
8158 2006-02-01  Jan Hubicka  <jh@suse.cz>
8159
8160         * opts.c (no_unit_at_a_time_default): New global variable.
8161         (decode_options): Use it.
8162         * opts.h (no_unit_at_a_time_default): Declare.
8163
8164 2006-02-01  Paul Brook  <paul@codesourcery.com>
8165
8166         * function.c (assign_parm_setup_reg): Use function argument promotion
8167         rules.
8168         * expr.c (expand_expr_real_1): Use function argument promotion rules
8169         for PARM_DECLs.
8170
8171 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
8172
8173         * gcc.c (process_command): Change j to 'unsigned int'.
8174
8175 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
8176
8177         PR middle-end/26001
8178         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
8179         Use the corrected index for the character
8180         out of the string constant.
8181
8182 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
8183
8184         * mode-switching.c (optimize_mode_switching): Fix size
8185         allocated for bb_info[n_entities].
8186
8187 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
8188
8189         * gcc.c (main): Correct type that is allocated for
8190         explicit_link_files.
8191
8192 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
8193
8194         * config/s390/s390.c (init_alignment_context): Set
8195         ALIAS_SET_MEMORY_BARRIER on the MEM.
8196         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
8197
8198 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
8199
8200         PR middle-end/25933
8201         * loop-unroll.c (unroll_loop_runtime_iterations): Free
8202         dom_bbs pointer.
8203         * tree-ssa-live.c (type_var_init): Allocate bitmap after
8204         call to tpa_init.
8205
8206 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
8207
8208         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
8209         * regrename.c: Ditto.
8210         * tree-ssa-loop-im.c: Ditto.
8211         * tree-dump.c: Ditto.
8212         * tree-complex.c: Ditto.
8213         * genrecog.c: Ditto.
8214         * tree-ssa-threadupdate.c: Ditto.
8215         * tracer.c: Ditto.
8216         * java/class.c: Ditto.
8217         * java/jcf-parse.c: Ditto.
8218         * java/resource.c: Ditto.
8219         * java/except.c: Ditto.
8220         * java/jvspec.c: Ditto.
8221         * java/jcf-write.c: Ditto.
8222         * java/jcf-path.c: Ditto.
8223         * java/gjavah.c: Ditto.
8224         * java/zextract.c: Ditto.
8225         * java/jcf-io.c: Ditto.
8226         * java/jcf.h: Ditto.
8227         * java/buffer.c: Ditto.
8228         * java/lang.c: Ditto.
8229         * java/parse-scan.y: Ditto.
8230         * java/lex.c: Ditto.
8231         * java/lex.h: Ditto.
8232         * cfgloopmanip.c: Ditto.
8233         * postreload-gcse.c: Ditto.
8234         * tree-ssa-loop-manip.c: Ditto.
8235         * postreload.c: Ditto.
8236         * tree-ssa-loop-ch.c: Ditto.
8237         * loop.c: Ditto.
8238         * ipa-cp.c: Ditto.
8239         * cppspec.c: Ditto.
8240         * diagnostic.c: Ditto.
8241         * final.c: Ditto.
8242         * genoutput.c: Ditto.
8243         * gcc.c: Ditto.
8244         * cfghooks.c: Ditto.
8245         * cfgloopanal.c: Ditto.
8246         * objc/objc-act.c: Ditto.
8247         * gcov.c: Ditto.
8248         * genextract.c: Ditto.
8249         * genautomata.c: Ditto.
8250         * pretty-print.c: Ditto.
8251         * genemit.c: Ditto.
8252         * cgraphunit.c: Ditto.
8253         * flow.c: Ditto.
8254         * df-scan.c: Ditto.
8255         * haifa-sched.c: Ditto.
8256         * dominance.c: Ditto.
8257         * dbxout.c: Ditto.
8258         * tree-ssa-loop-ivopts.c: Ditto.
8259         * df-core.c: Ditto.
8260         * mode-switching.c: Ditto.
8261         * modulo-sched.c: Ditto.
8262         * graph.c: Ditto.
8263         * ipa-pure-const.c: Ditto.
8264         * cse.c: Ditto.
8265         * fix-header.c: Ditto.
8266         * web.c: Ditto.
8267         * tree-stdarg.c: Ditto.
8268         * ipa-utils.c: Ditto.
8269         * loop-init.c: Ditto.
8270         * ipa-inline.c: Ditto.
8271         * cfganal.c: Ditto.
8272         * global.c: Ditto.
8273         * alloc-pool.c: Ditto.
8274         * dwarf2out.c: Ditto.
8275         * opts.c: Ditto.
8276         * genattrtab.c: Ditto.
8277         * tree-ssa-loop-ivcanon.c: Ditto.
8278         * predict.c: Ditto.
8279         * timevar.c: Ditto.
8280         * lcm.c: Ditto.
8281         * fortran/gfortranspec.c: Ditto.
8282         * regmove.c: Ditto.
8283         * local-alloc.c: Ditto.
8284         * langhooks.c: Ditto.
8285         * function.c: Ditto.
8286         * tree-vectorizer.c: Ditto.
8287         * gcse.c: Ditto.
8288         * ipa-type-escape.c: Ditto.
8289         * alias.c: Ditto.
8290         * tree-if-conv.c: Ditto.
8291         * profile.c: Ditto.
8292         * ipa.c: Ditto.
8293         * tree-data-ref.c: Ditto.
8294         * loop-unroll.c: Ditto.
8295         * treelang/treetree.c: Ditto.
8296         * calls.c: Ditto.
8297         * bt-load.c: Ditto.
8298         * ggc-common.c: Ditto.
8299         * except.c: Ditto.
8300         * coverage.c: Ditto.
8301         * cselib.c: Ditto.
8302         * tree-cfgcleanup.c: Ditto.
8303         * tree-ssa-pre.c: Ditto.
8304         * cfgcleanup.c: Ditto.
8305         * loop-invariant.c: Ditto.
8306         * loop-iv.c: Ditto.
8307         * ipa-prop.c: Ditto.
8308         * print-tree.c: Ditto.
8309         * conflict.c: Ditto.
8310         * ggc-page.c: Ditto.
8311         * sched-deps.c: Ditto.
8312         * regclass.c: Ditto.
8313         * tree-object-size.c: Ditto.
8314         * combine.c: Ditto.
8315         * bb-reorder.c: Ditto.
8316         * resource.c: Ditto.
8317         * var-tracking.c: Ditto.
8318         * cfgloop.c: Ditto.
8319         * df-problems.c: Ditto.
8320         * reg-stack.c: Ditto.
8321         * tlink.c: Ditto.
8322         * gccspec.c: Ditto.
8323         * sched-rgn.c: Ditto.
8324         * tree-ssa-structalias.c: Ditto.
8325         * tree-ssa-reassoc.c: Ditto.
8326         * config/darwin-c.c: Ditto.
8327         * config/darwin.c: Ditto.
8328         * config/arm/arm.c: Ditto.
8329         * cfgrtl.c: Ditto.
8330         * collect2.c: Ditto.
8331         * reload1.c: Ditto.
8332
8333 2006-01-31  Nicolas Pitre  <nico@cam.org>
8334
8335         * arm.md (smaxsi3): Make aware of smax_m1.
8336         (smax_m1): New.
8337
8338 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
8339
8340         * config/m68k/lb1sf68.asm: Use moveq to load small constants.
8341
8342 2006-01-31  Richard Guenther  <rguenther@suse.de>
8343
8344         * doc/invoke.texi (-msselibm): Document.
8345         * target.h (expand_library_builtin): New target hook.
8346         * builtins.c (expand_builtin): Use expand_library_builtin.
8347         (default_expand_library_builtin): New function.
8348         * gcc.c (LINK_GCC_MATH_SPEC): Define.
8349         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
8350         (link_gcc_math_spec): Declare.
8351         (static_specs): Add link_gcc_math_spec.
8352         * expr.h (default_expand_library_builtin): Declare.
8353         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
8354         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
8355         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
8356         * config/i386/i386.opt (msselibm): New target option.
8357         * config/i386/i386.c (ix86_builtin_function_variants): New array.
8358         (ix86_init_sse_abi_builtins): New function.
8359         (ix86_expand_library_builtin): Likewise.
8360         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
8361         (override_options): Handle error conditions wrt -msselibm.
8362         (ix86_builtins): Add function codes for SSE2 ABI builtins.
8363         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
8364         * doc/extend.texi (__builtin_sse2_*): Document new target specific
8365         builtins.
8366
8367 2006-01-31  Richard Guenther  <rguenther@suse.de>
8368         Paolo Bonzini  <bonzini@gnu.org>
8369
8370         * doc/install.texi (--disable-libgcc-math): Document.
8371
8372 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
8373
8374         * expr.h (expand_normal): new inline function.
8375         * builtins.c: use it, use EXPAND_NORMAL explicitely.
8376         * dojump.c: use it.
8377         * dwarf2out.c: use it.
8378         * expr.c: use it.
8379         * calls.c: use it.
8380         * expmed.c: use it.
8381         * except.c: use it.
8382         * config/sparc/sparc.c: use it.
8383         * config/i386/i386.c: use it.
8384         * config/rs6000/rs6000.c: use it.
8385         * config/arm/arm.c: use it.
8386         * config/mips/mips.c: use it.
8387         * stmt.c: use it, use EXPAND_NORMAL explicitely.
8388
8389 2006-01-30  Roger Sayle  <roger@eyesopen.com>
8390
8391         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
8392         argv to the appropriate type.
8393
8394 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
8395
8396         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
8397         unreachable code.
8398
8399 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
8400
8401         PR target/26018
8402         * config/s390/s390.c (struct machine_function): New flag
8403         decomposed_literal_pool_addresses_ok_p.
8404         (s390_reorg): Set it before final stage of literal pool transforms.
8405         (s390_decompose_address): Only accept displacements of the form
8406         (minus (label_ref ...) (label_ref ...)) if that flag is set.
8407
8408 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
8409
8410         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
8411         the comparison routine return.
8412
8413 2006-01-30  Michael Matz  <matz@suse.de>
8414
8415         * global.c (find_reg): Only evict for global regs.
8416         Take n_refs into account and dump more info.
8417
8418 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
8419
8420         PR target/14798:
8421         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
8422         (pragma_trap, pragma_nosave_low_regs): Likewise.
8423         (current_function_anonymous_args): Likewise.
8424         (sh_deferred_function_attributes): New variable.
8425         (sh_deferred_function_attributes_tail): Likewise.
8426         (print_operand): For '@', look up trap_exit attribute.
8427         (calc_live_regs): Look up trapa_handler attribute.  For trapa
8428         handlers, save/restore fpscr, but don't do any other
8429         interrupt-specific saves.
8430         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
8431         Fix check for partially saved registers to check for SHmedia.
8432         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
8433         (sh_output_function_epilogue): Don't clear any of the removed
8434         variables.
8435         (sh_insert_attributes): Don't check pragma_interrupt.
8436         Insert deferred attributes.  Check that interrupt attribute is
8437         present for other attributes that require its presence.
8438         (sh_attribute_table): Add new attributes trapa_handler and
8439         nosave_low_regs.
8440         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
8441         Don't check for pragma_interrupt.  Don't store argument.
8442         * sh.h (pragma_interrupt, sp_switch): Don't declare.
8443         (sh_deferred_function_attributes): Declare.
8444         (sh_deferred_function_attributes_tail): Likewise.
8445         * sh.md (sp_switch_1): Add operand.  Change generator caller.
8446         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
8447         (*return_i): Don't use when trap_exit attribute is in effect.
8448         (*return_trapa): New insn pattern.
8449         * sh-c.c: New file.
8450         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
8451         setting c_target_objs and cxx_target_objs.
8452         * t-sh: Add rule for sh-c.o.
8453
8454 2006-01-30  Richard Guenther  <rguenther@suse.de>
8455
8456         PR c++/23372
8457         * gimplify.c (gimplify_target_expr): Handle easy cases
8458         without creating a temporary.
8459
8460 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
8461
8462         * vec.h (safe_grow): Remove duplicated line.
8463
8464 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
8465
8466         PR 25874
8467         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
8468         (expand_omp): ... here.
8469         (expand_omp_parallel): Only remove barriers for combined
8470         parallel+workshare constructs.
8471
8472 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
8473
8474         Revert
8475
8476         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
8477         * tree.c (build_qualified_type): Chain the new type to the original
8478         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
8479         a POINTER_TYPE or a REFERENCE_TYPE respectively.
8480         (build_pointer_type_for_mode): Only return unqualified types.
8481         (build_reference_type_for_mode): Likewise.
8482
8483 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
8484
8485         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
8486         * Makefile.in (CXX_COMPAT_WARN): Define.
8487         * configure: Regenerate.
8488
8489 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
8490
8491         PR tree-opt/25911
8492         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
8493         to an if check.
8494
8495 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
8496
8497         * toplev.c: Fix thinko.
8498
8499 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
8500             Marcin Dalecki  <martin@dalecki.de>
8501
8502         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
8503         (push_srcloc): Use XNEW.
8504         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
8505
8506 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
8507
8508         * df-core.c (df_set_blocks): Deleted all variable.
8509
8510 2006-01-28  Ian Lance Taylor  <ian@airs.com>
8511
8512         * cgraphunit.c (cgraph_assemble_pending_functions): Call
8513         cgraph_output_pending_asms.
8514
8515 2006-01-28  Zack Weinberg  <zackw@panix.com>
8516
8517         * c.opt: Add -W(no-)overlength-strings.
8518         * doc/invoke.texi: Document it.
8519         * c-opts.c (c_common_handle_option): -pedantic implies
8520         -Woverlength-strings, if not explicitly disabled already.
8521         (c_common_post_options): -Woverlength-strings defaults to off, and
8522         is always off for C++.
8523         * c-common.c (fix_string_type): Issue warning about strings longer
8524         than is portable only if warn_overlength_strings.  Rearrange code
8525         a little for clarity.
8526         * configure.in: Check for -Wno-overlength-strings as well before
8527         enabling -pedantic in stage 1.
8528         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
8529         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
8530
8531         * genconditions.c (write_header, write_one_condition)
8532         (write_conditions, write_writer): Consolidate very long strings
8533         that were broken up to fit in C89 portable limit.  Don't use
8534         printf when fputs will do.
8535
8536 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
8537
8538         * combine.c (simplify_comparison <AND>): Check
8539         TRULY_NOOP_TRUNCATION before start using a subreg.
8540
8541         * config/mips/mips.md (*branch_zero<mode>,
8542         *branch_zero<mode>_inverted, *branch_equality<mode>,
8543         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
8544         Remove mode check from comparisons.
8545
8546 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
8547
8548         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
8549
8550 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
8551
8552         * expmed.c (const_mult_add_overflow_p): Remove.
8553         * expr.h: Remove the prototype for const_mult_add_overflow_p.
8554
8555         * recog.c (validate_replace_rtx_subexp): Remove.
8556         * recog.h: Remove the prototype for
8557         validate_replace_rtx_subexp.
8558
8559         * integrate.h: Remove the prototype for
8560         copy_decl_for_inlining.
8561         * rtl.h: Remove the prototype for mark_constant_function.
8562         * tree-vectorizer.h: Remove the prototype for
8563         vect_strip_conversion.
8564
8565         * modulo-sched.c (create_partial_schedule,
8566         free_partial_schedule, reset_partial_schedule): Make them
8567         static.
8568
8569         * hooks.c (hook_bool_rtx_int_false): Remove.
8570         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
8571
8572 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
8573
8574         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
8575         and -mlong-double-128 are incompatible.
8576         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
8577         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
8578         (TARGET_LIBGCC2_CFLAGS): Define.
8579         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
8580         (TARGET_LIBGCC2_CFLAGS): Same.
8581         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
8582
8583 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
8584
8585         PR c/19606.
8586         * c-typeck.c (build_binary_op): Perform implicit casts of
8587         operands before shortening them.
8588
8589         * cfgloopmanip.c (split_loop_bb): Remove.
8590         * cfgloop.h: Remove the prototype for split_loop_bb.
8591
8592         * cfgloop.c (flow_loop_outside_edge_p): Remove.
8593         * cfgloop.h: Remove the prototype for
8594         flow_loop_outside_edge_p.
8595
8596         * emit-rtl.c (init_virtual_regs): Make it static.
8597         * function.h: Remove the prototype for init_virtual_regs.
8598
8599         * recog.c (peephole2_optimize): Make it static.
8600         * recog.h: Remove the prototype for peephole2_optimize.
8601
8602 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
8603
8604         * df-scan.c (df_record_entry_block_defs): Check if
8605         INCOMING_RETURN_ADDR_RTX is defined.
8606
8607 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
8608             Kenneth Zadeck <zadeck@naturalbridge.com>
8609
8610         PR rtl-optimization/24762
8611         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
8612         * targhooks.c (hook_void_bitmap): New hook prototype.
8613         * targhoohs.h (hook_void_bitmap): Ditto.
8614         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
8615         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
8616         * target.h (live_on_entry): New function pointer.
8617         * df-scan.c (df_all_hard_regs): Removed.
8618         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
8619         (df_scan_free_internal): Added df->entry_block_defs.
8620         (df_scan_alloc): Ditto.
8621         (df_scan_dump): Ditto.
8622         (df_uses_record): Plumbed flag field properly thru calls.
8623         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
8624         This part fixes PR24762.
8625         (df_bb_refs_record): Added code to make the frame and arg
8626         pointers live in EH blocks.
8627         (df_refs_record): Added call to df_record_entry_block_defs.
8628         (df_record_entry_block_defs): New function.
8629         * df-core.c: Added comments to describe new artifical defs.
8630         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
8631         (entry_block_defs): New field in struct df.
8632         (df_all_hard_regs): Deleted.
8633         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
8634         * df-problems.c (df_ru_bb_local_compute_process_def):
8635         Added code to handle artifical defs in the entry to a function.
8636         (df_ru_bb_local_compute): Ditto.
8637         (df_rd_bb_local_compute_process_def): Ditto.
8638         (df_rd_bb_local_compute): Ditto.
8639         (df_lr_bb_local_compute): Ditto.
8640         (df_ur_bb_local_compute): Ditto.
8641         (df_urec_bb_local_compute): Ditto.
8642         (df_chain_create_bb): Ditto.
8643         (df_ur_local_finalize): Removed entry.
8644         (df_urec_init): Ditto.
8645         (df_urec_local_finalize): Ditto.
8646         (df_ri_bb_compute): Added detection of last use of pseudos.
8647         * Makefile.in (df-scan.o): Updated dependencies.
8648         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
8649         * config/mips/mips.c (mips_set_live_on_entry): Added.
8650         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
8651         for target hook.
8652         * dce.c (marked_insn_p): Added code to handle artifical defs.
8653
8654 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
8655
8656         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
8657         intrinsic.
8658         (_mm_cvtsi128_si64): Likewise.
8659         (_mm_cvtsd_si64): Likewise.
8660         (_mm_cvttsd_si64): Likewise.
8661         (_mm_cvtsi64_sd): Likewise.
8662         (_mm_cvtsi64_si128): Likewise.
8663         * config/i386/mmintrin.h (_m_from_int64): Likewise.
8664         (_mm_cvtsi64_m64): Likewise.
8665         (_m_to_int64): Likewise.
8666         (_mm_cvtm64_si64): Likewise.
8667         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
8668         (_mm_cvttss_si64): Likewise.
8669         (_mm_cvtsi64_ss): Likewise.
8670         (_mm_cvtss_f32): Likewise.
8671
8672 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
8673
8674         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
8675         for pragma redefine_extname.
8676
8677 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
8678
8679         PR target/25864
8680         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
8681         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
8682         -mno-minimal-toc to previous content.
8683         (bispecs): Remove goal.
8684         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
8685         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
8686         compatibility aliases on powerpc-*-*gnu*.
8687         * config/rs6000/libgcc-ppc-glibc.ver: New file.
8688         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
8689         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
8690         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
8691         (ldblspecs): New goal.
8692         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
8693         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
8694         _df_to_tf.
8695         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
8696         L_sf_to_tf or L_df_to_tf is defined.
8697
8698 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
8699             Alan Modra  <amodra@bigpond.net.au>
8700
8701         PR target/25864
8702         * config/rs6000/linux.h (POWERPC_LINUX): Define.
8703         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
8704         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
8705         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
8706         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
8707         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
8708         (rs6000_override_options): Initialize rs6000_ieeequad.
8709         Initialize TFmode format to ibm_extended_format if not
8710         TARGET_IEEEQUAD.
8711         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
8712         ieeelongdouble.
8713         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
8714         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
8715         (function_arg_advance): IBM long double passed in two FPRs, not
8716         split.
8717         (function_arg): IBM long double passed in FPRs.
8718         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
8719         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
8720         Only multireg GPR aligned.
8721         (rs6000_init_libfuncs): Enable IBM long double functions if not
8722         IEEEQUAD.
8723         (rs6000_generate_compare): Use IBM long double compare if not
8724         TARGET_IEEEQUAD.
8725         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
8726         (TARGET_IEEEQUAD): Define.
8727         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
8728         not TARGET_IEEEQUAD.
8729         * config/rs6000/rs6000.md: Enable TFmode patterns if
8730         !TARGET_IEEEQUAD.
8731         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
8732         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
8733         and -mlong-double-128 are incompatible.
8734         * doc/invoke.texi (-mabi): Collect options together.  Add
8735         ibmlongdouble and ieeelongdouble.
8736
8737 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
8738
8739         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
8740         opaque type.
8741         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
8742         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
8743         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
8744         * rtl.h (rtunion_def): Remove rt_ptr.
8745         (X0PTR): Delete.
8746         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
8747         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
8748         * config/i386/winnt.c (i386_pe_mark_dllexport)
8749         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
8750
8751 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
8752
8753         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
8754
8755 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
8756
8757         PR other/24829
8758         PR target/24831
8759         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
8760         pthread_key_delete.  From John David Anglin.  gthrw-ify
8761         pthread_getunique_np only if it it's not a macro.  Delete
8762         UNUSED macro.
8763         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
8764         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
8765         __gthread_objc_condition_signal, __gthread_key_delete): Add
8766         "__attribute__ ((__unused__))" to unused arguments.
8767         (__gthread_recursive_mutex_init_function): Add missing return.
8768         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
8769         gthr-posix95.h: Use macro-based approach for name redirection
8770         on targets missing weakref.
8771
8772 2006-01-26  Zack Weinberg  <zackw@panix.com>
8773
8774         * genconditions.c (write_header): In generated code, #ifdef out
8775         all includes and fake declarations, except includes of bconfig.h
8776         and system.h, unless GCC_VERSION >= 3001.  Do not include
8777         gensupport.h in any case.
8778         (write_conditions): Generate a definition of struct c_test.  Add
8779         a comment to the generated #endif.
8780         (write_one_condition): Escape backslashes in string too.
8781         (write_writer): Generated code must escape backslashes and quote
8782         marks (but not newlines) in the strings it writes.
8783         * Makefile.in (build/gencondmd.o): Update dependencies.
8784
8785 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
8786
8787         PR target/25961
8788         * Makefile.in (insn-automata.o): Add header file dependencies.
8789         * genautomata.c: Add includes.
8790
8791 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
8792
8793         PR target/25961
8794         * Makefile.in (insn-automata.o): Add -Wno-error flag.
8795
8796 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
8797
8798         * configure.ac: Expect target tools paths to be passed from the toplevel
8799         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
8800         AS_SET_VAR_IF.
8801         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
8802
8803 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
8804
8805         PR c/25892
8806         * c.opt (Wpointer-sign): Init to -1.
8807         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
8808         OPT_pedantic, to 0 otherwise.
8809         * doc/invoke.texi: Update.
8810
8811 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
8812
8813         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
8814         constants provided by 80387 instructions in the destination mode.
8815
8816 2006-01-26  Richard Guenther  <rguenther@suse.de>
8817             Andrew Pinski  <pinskia@physics.uc.edu>
8818
8819         PR tree-opt/21470
8820         partial PR tree-opt/17064
8821         * tree-ssa-structalias.c (intra_create_variable_infos):
8822         Create heap variables for incoming parameters if
8823         flag_argument_noalias > 1.
8824         (find_what_p_points_to): Look through default defs of
8825         parameter decls.
8826
8827 2006-01-26  Jeff Law  <law@redhat.com>
8828
8829         PR ada/25900
8830         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
8831         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
8832         within the VR_RANGE, use the VR_RANGE as the result, not the
8833         VR_ANTI_RANGE.
8834         (adjust_range_with_scev): Reject ranges from SCEV which are out of
8835         bounds for the type.
8836
8837 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
8838
8839         * tree-ssa-alias.c (maybe_create_global_var): Change
8840         subvar walking to an assertion that we don't have subvar'd variables.
8841
8842 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
8843
8844         PR C/25861
8845         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
8846         Use a new variable, inner.  PARM_DECLs are always non-weak.
8847
8848 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
8849
8850         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
8851         --disable-checking.
8852
8853 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
8854
8855         * config/mips/mips.md (*clear_upper32): New combiner pattern.
8856
8857 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
8858
8859         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
8860         (smax_insn, smin_insn, smax_0, smin_0): New.
8861
8862 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
8863
8864         PR target/25947
8865         * config/cris/cris.c (cris_order_for_addsi3): New function.
8866         * config/cris/cris-protos.h: Prototype it.
8867         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
8868         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
8869         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
8870         (split for "op.S1 [rx=rx+i],ry (swapped)")
8871         (split for "op(s|u).S1 [rx=rx+i],ry")
8872         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
8873         Apply cris_order_for_addsi3 when generating addsi3 insns.
8874
8875 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
8876
8877         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
8878         (TREE_BLOCK): Add call to EXPR_CHECK.
8879
8880 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
8881
8882         PR 25886
8883         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
8884         * tree-pretty-print.c (dump_omp_clause): Extract from ...
8885         (dump_omp_clauses): ... here.
8886         (dump_generic_node): Handle OMP_CLAUSE.
8887         * tree.c (omp_clause_num_ops): New.
8888         (omp_clause_code_name): New.
8889         (tree_code_size): Handle OMP_CLAUSE.
8890         (tree_size): Likewise.
8891         (make_node): Document handling of OMP_CLAUSE.
8892         (tree_node_structure): Handle OMP_CLAUSE.
8893         (omp_clause_check_failed): New.
8894         (omp_clause_range_check_failed): New.
8895         (omp_clause_operand_check_failed): New.
8896         (build_omp_clause): New.
8897         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
8898         * tree.h (enum omp_clause_code): Declare.
8899         (OMP_CLAUSE_SUBCODE_CHECK): Define.
8900         (OMP_CLAUSE_RANGE_CHECK): Define.
8901         (OMP_CLAUSE_ELT_CHECK): Define.
8902         (omp_clause_check_failed): Declare.
8903         (omp_clause_operand_check_failed): Declare.
8904         (omp_clause_range_check_failed): Declare.
8905         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
8906         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
8907         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
8908         (OMP_CLAUSE_LASTPRIVATE): Likewise.
8909         (OMP_CLAUSE_IF_EXPR): Likewise.
8910         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
8911         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
8912         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
8913         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
8914         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
8915         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
8916         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
8917         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
8918         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
8919         (OMP_CLAUSE_CODE): Define.
8920         (OMP_CLAUSE_SET_CODE): Define.
8921         (OMP_CLAUSE_CODE): Define.
8922         (OMP_CLAUSE_OPERAND): Define.
8923         (struct tree_omp_clause): Declare.
8924         (union tree_node): Add field 'omp_clause'.
8925         * treestruct.def (TS_OMP_CLAUSE): Define.
8926         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
8927         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
8928         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
8929         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
8930         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
8931         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
8932         (OMP_CLAUSE): Define.
8933         * print-tree.c (print_node): Handle OMP_CLAUSE.
8934         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
8935         * c-typeck.c: Likewise.
8936         * gimplify.c: Likewise.
8937         * c-omp.c: Likewise.
8938         * tree-nested.c: Likewise.
8939         * tree-inline.c: Likewise.
8940         * c-parser.c: Likewise.
8941         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
8942         clauses.
8943
8944 2006-01-25  Roger Sayle  <roger@eyesopen.com>
8945
8946         PR rtl-optimization/25703
8947         * combine.c (try_combine): Handle zero_extract and strict_low_part
8948         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
8949
8950 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
8951
8952         * global.c: Fix comment typos.
8953
8954 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
8955
8956         PR target/25758
8957         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
8958         Use output_addr_const instead of assemble_name.
8959
8960 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
8961
8962         * Makefile.in (sched-vis.o): Update dependencies.
8963         * haifa-sched.c (sched_finish): Clear current_sched_info.
8964         * cfg.c (dump_bb_info): New, split from dump_flow_info.
8965         (dump_flow_info): Call it.
8966         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
8967         a slim RTL dump.
8968         * basic-block.h (dump_bb_info): Declare.
8969         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
8970         option, and apply options only for dump files whose TDF_RTL,
8971         TDF_TREE, or TDF_IPA bits match.
8972         * rtl.h: Declare new functions exported from sched-vis.c.
8973         * sched-vis.c: Enable also if scheduling is not used.
8974         (print_value): Print the mode of registers if not inside scheduling.
8975         (print_insn): Make it work outside the scheduler.  Beautify the output
8976         a bit.
8977         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
8978
8979 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
8980
8981         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
8982         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
8983         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
8984         depending on the value of CONSTANT_POOL_ADDRESS_P.
8985         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
8986         SYMBOL_REF_DECL.
8987         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
8988         rather than SYMBOL_REF_DECL.
8989         (rtx_constant_pool): Remove const_rtx_sym_htab.
8990         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
8991         (init_varasm_status): Don't initialize const_rtx_sym_htab.
8992         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
8993         Remove handling of const_rtx_sym_htab.
8994         (find_pool_constant): Delete.
8995         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
8996         rather than find_pool_constant.
8997         (get_pool_constant_for_function): Delete.
8998         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
8999         find_pool_constant.
9000         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
9001         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
9002         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
9003         (SYMBOL_REF_CONSTANT): New macro.
9004         (get_pool_constant_for_function): Delete.
9005         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
9006         rather than SYMBOL_REF_DECL.
9007         (i386_pe_mark_dllimport): Likewise.
9008         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
9009         rather than SYMBOL_REF_DECL.
9010         * config/darwin.c (machopic_indirect_data_reference): Likewise.
9011         (machopic_indirect_call_target): Likewise.
9012
9013 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
9014
9015         * flow.c (delete_noop_moves): Add missing EOL to dump message.
9016
9017 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
9018
9019         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
9020
9021 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
9022
9023         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
9024
9025 2006-01-24  David Daney  <ddaney@avtrex.com>
9026
9027         PR java/25816
9028         * configure.ac (enable_tls): New enable option.
9029         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
9030         * configure: Regenerate.
9031         * doc/install.texi (--enable-tls): Document new option.
9032         (--disable-tls): Ditto.
9033
9034 2006-01-24  Richard Henderson  <rth@redehat.com>
9035
9036         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
9037         * alias.c (true_dependence): Respect it.
9038         (canon_true_dependence, write_dependence_p): Likewise.
9039         * builtins.c (get_builtin_sync_mem): Set it.
9040
9041 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
9042
9043         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
9044         efficient way.
9045
9046 2006-01-24  DJ Delorie  <dj@redhat.com>
9047
9048         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
9049         for storing constants in single-bit bitfields.
9050
9051 2006-01-25  Ben Elliston  <bje@au.ibm.com>
9052
9053         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
9054
9055 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
9056
9057         PR tree-opt/25860
9058         * tree-ssa-pre.c (phi_translate): Return NULL
9059         for AGGREGATE_TYPE's.
9060
9061 2006-01-24  Zack Weinberg  <zackw@panix.com>
9062
9063         * genautomata.c (process_state_for_insn_equiv_partition):
9064         Use xcalloc for insn_arcs_array.
9065         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
9066         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
9067
9068 2006-01-24  Richard Henderson  <rth@redhat.com>
9069
9070         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
9071         update all callers.
9072
9073 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
9074
9075         PR rtl-optimization/25890
9076         PR rtl-optimization/25905
9077         * combine.c (expand_compound_operation, expand_field_assignment):
9078         Fail if the bitfield's final position is out of bounds.
9079
9080 2006-01-24  Ian Lance Taylor  <ian@airs.com>
9081
9082         PR middle-end/25930
9083         * cgraphunit.c (cgraph_output_in_order): Don't clear
9084         cgraph_asm_nodes until after asm strings have been output.
9085
9086 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
9087
9088         * fix-header.c (read_scan_file): Add new parameter imultilib when
9089         calling register_include_chains.
9090
9091 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
9092
9093         * omp-low.c: Update documentation.
9094
9095 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
9096             Daniel Berlin  <dberlin@dberlin.org>
9097
9098         PR tree-opt/25315
9099         PR tree-opt/25857
9100         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
9101         return from the function.
9102
9103 2006-01-22  Zack Weinberg  <zackw@panix.com>
9104
9105         * rtl.def (match_code): Add second argument.
9106         * genpreds.c (write_extract_subexp): New function.
9107         (write_match_code): Add path argument.  Use write_extract_subexp.
9108         (write_predicate_expr): Pass path to write_match_code.
9109         (mark_mode_tests): MATCH_CODE applied to a subexpression does
9110         not perform a mode test.
9111         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
9112         a subexpression does not constrain the top-level code set.
9113         * read-rtl.c (read_rtx_variadic): New function.
9114         (read_rtx_1): Use it; allow AND and IOR to be variadic.
9115         * doc/md.texi: Document new notation.
9116         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
9117         (cmpsi_operand): ... here, using new notation.
9118
9119 2006-01-22  Zack Weinberg  <zackw@panix.com>
9120
9121         * varray.c: Remove GENERATOR_FILE #ifdefs.
9122
9123 2006-01-22  Zack Weinberg  <zackw@panix.com>
9124
9125         * genautomata.c (output_reserved_units_table): Emit nothing if
9126         description->query_units_num is zero.  Remove extra blank line.
9127         (output_cpu_unit_reservation_p): Short circuit
9128         if description->query_units_num is zero.
9129
9130 2006-01-22  Zack Weinberg  <zackw@panix.com>
9131
9132         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
9133         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
9134         nor any of the random handful of variables that used to be necessary
9135         when this program was linked with rtlanal.o.  Prune set of forward
9136         function declarations.
9137         (struct attr_desc): Remove static_p field.
9138         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
9139         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
9140         (attr_string): Do not read the character one past the length of
9141         the string.
9142         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
9143         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
9144         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
9145         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
9146         (make_automaton_attrs): New.
9147         (main): Do not call into genautomata.  Call local gen_bypass
9148         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
9149         Remove special case for insn_alts.
9150         * genautomata.c: Include gensupport.h; not genattrtab.h nor
9151         varray.h (leftover from previous change).  Prune set of forward
9152         function declarations.  Remove state_alts fields from all
9153         structures.  Remove state_alts_table from struct automaton.
9154         Make everything except main static.  Do not maintain num_dfa_decls.
9155         Do not maintain state_alts fields of various structures.
9156         (process_decls): Don't validate condexp for dm_insn_reserv decls.
9157         (add_arc): Remove state_alts argument.  All callers updated.
9158         (output_reserved_units_table): Emit #ifdef here...
9159         (output_tables): ...not here.  Don't generate state_alts tables.
9160         (expand_automata): Don't generate attributes.
9161         (write_automata): Don't generate state_alts functions.
9162         (main): New function.
9163         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
9164         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
9165         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
9166         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
9167         (BYPASS_P_FUNC_NAME, output_state_alts_table)
9168         (output_automata_list_state_alts_code, output_internal_state_alts_func)
9169         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
9170         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
9171         Delete.
9172         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
9173         * genattrtab.h: Delete file.
9174         * Makefile.in (OBJS-common): Add insn-automata.o.
9175         (insn-automata.o): New rule.
9176         (simple_generated_c): Add insn-automata.c.
9177         (build/genattrtab.o, build/genautomata.o): Update dependencies.
9178         (genprogmd): Add automata.
9179         (build/genattrtab): Needs no extra objects nor libraries.
9180         (build/genautomata): Needs build/vec.o and -lm.
9181
9182 2006-01-22  Zack Weinberg  <zackw@panix.com>
9183
9184         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
9185         (output_dfa_max_issue_rate, locked_states_num): Delete.
9186         (struct automaton): Add locked_states field.
9187         (output_dead_lock_vect): Save number of locked states in
9188         automaton->locked_states.  If it is zero, don't print anything.
9189         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
9190         (output_internal_dead_lock_func): Only test the dead_lock_vect
9191         for automata that have locked states.
9192         (output_statistics): Always print the number of locked states for
9193         each automaton.  Calculate total number of locked states here.
9194         (write_automata): Don't call output_dfa_max_issue_rate.
9195         * genattrtab.c: Define length_unit_log as a const variable.
9196         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
9197         max_insn_queue_index const.
9198         * final.c (length_unit_log): Declare const.
9199         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
9200
9201 2006-01-22  Zack Weinberg  <zackw@panix.com>
9202
9203         * genautomata.c: Include vec.h, not varray.h.
9204         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
9205         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
9206         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
9207         VEC_* macros operating on appropriately typed vectors, or to
9208         malloced arrays when the size is known in advance.  Const-ify
9209         many char* variables and function arguments.  No functional changes.
9210         * Makefile.in (build/varray.o): Delete rule.
9211         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
9212         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
9213
9214 2006-01-22  Zack Weinberg  <zackw@panix.com>
9215
9216         * gensupport.c: Define get_insn_name and record_insn_name here.
9217         (read_md_rtx): Call record_insn_name as appropriate.
9218         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
9219         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
9220         * genpreds.c, genrecog.c: Don't define get_insn_name nor
9221         record_insn_name.
9222         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
9223         (BUILD_VARRAY): Delete.
9224         (genprognormal): Rename genprogmd.  Fold in all programs from
9225         genprognoprint; also attrtab.
9226         (build/genattrtab): Just mention genautomata.o and varray.o.
9227         Reorganize a bit, add comments to make the categories clearer.
9228
9229 2006-01-22  Zack Weinberg  <zackw@panix.com>
9230
9231         * genconditions.c (condition_table, add_condition): Delete.
9232         (write_conditions): Don't emit n_insn_conditions nor
9233         insn_elision_unavailable.  Issue the gcc version #ifdef here,
9234         inside the table, with no #else clause ...
9235         (write_header): ...not here.
9236         (write_writer): New function.
9237         (main): Don't initialize condition_table.  Use add_c_test.
9238         Call write_writer.
9239         * gensupport.c (init_md_reader_args_cb): Handle multiple input
9240         files on the command line.
9241         (maybe_eval_c_test): Don't check insn_elision_unavailable.
9242         Return -1 if there is no entry in the table, don't abort.
9243         (add_c_test, traverse_c_tests): New functions.
9244         * gensupport.h (insn_elision_unavailable, insn_conditions)
9245         (n_insn_conditions): Delete declarations.
9246         (add_c_test, traverse_c_tests): Declare.
9247         * read-rtl.c: Include gensupport.h.
9248         (read_conditions): New function.
9249         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
9250         (read_rtx_1): If we get EOF when we were looking for an initial
9251         open paren, return 0.  Call read_conditions when appropriate.
9252         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
9253         dummy-conditions.o.  Eliminate references to insn-conditions.o,
9254         or change them to build/gencondmd.o, as appropriate.  Remove
9255         insn-constants.h from $(simple_generated_h) and insn-conditions.c
9256         from $(simple_generated_c).  For all files remaining in those
9257         two lists, add insn-conditions.md to the generator command line.
9258         Give insn-constants.h/s-constants their own rules.  Add rules
9259         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
9260         (build/read-rtl.o): Depend on gensupport.h.
9261         (genprognormal): Include preds.
9262         (genprogearly): Rename genprognoprint; only difference is now that
9263         they don't link with $(BUILD_PRINT).
9264         * dummy-conditions.c: Delete.
9265
9266 2006-01-22  Zack Weinberg  <zackw@panix.com>
9267
9268         * genextract.c: Don't include insn-config.h.  Do include vec.h.
9269         Declare vectors of int, char, and locstr.
9270         (locstr): New typedef.
9271         (struct extraction): Make all array fields into bare pointers.
9272         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
9273         (insn_code_number): Delete.
9274         (accum_extract): New struct.
9275         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
9276         (gen_insn): Take insn_code_number as an argument.  Use an
9277         accum_extract structure instead of loading data directly into
9278         a struct extraction, and having to know how big it might get.
9279         (walk_rtx): Operate entirely on an accum_extract structure.
9280         (print_path): Avoid unnecessary use of printf.
9281         (print_header): New function, split out of main.  Distinguish
9282         more carefully between an unrecognizable insn and an insn that
9283         has the code number of a define_expand.
9284         (main): Pass insn_code_number to gen_insn.  Call print_header
9285         only after parsing.  Avoid unnecessary use of printf.
9286         * Makefile.in (build/vec.o): New rule.
9287         (build/genextract): Depend on build/vec.o.
9288         (build/genextract.o): Don't depend on insn-config.h.
9289
9290 2006-01-22  Zack Weinberg  <zackw@panix.com>
9291
9292         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
9293         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
9294         practical.  Eliminate per-generator-program link rules.
9295
9296 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
9297
9298         PR middle-end/24437
9299         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
9300         with a call expr to ...
9301         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
9302
9303 2006-01-23  Richard Guenther  <rguenther@suse.de>
9304
9305         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
9306         before make_edge with conditional EDGE_TRUE_VALUE.
9307
9308 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
9309         Jan Hubicka  <jh@suse.cz>
9310         Richard Guenther  <rguenther@suse.de>
9311
9312         PR rtl-optimization/25654
9313         * cfgexpand.c (aggregate_contains_union_type): New function.
9314         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
9315         for structure variables that contain a union type.
9316
9317 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
9318
9319         * gengtype.c (new_structure): Return the structure.
9320         (create_option): Add an extra "next" argument.
9321         (create_field): New function.
9322         (adjust_field_rtx_def): Use create_option and create_field.
9323         Remove a now-unnecessary call to find_structure.
9324         (adjust_field_tree_def): Likewise.
9325         (note_yacc_type): Remove an unnecessary call to find_structure.
9326         * gengtype.h (new_structure): Return the structure.
9327         (create_option): Add an extra argument.
9328         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
9329         (option): Adjust calls to create_option.
9330
9331 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
9332
9333         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
9334
9335 2006-01-22  Paul Brook  <paul@codesourcery.com>
9336         Peter Barada  <peter@the-baradas.com>
9337
9338         * config/m68k/m68k.md: Add Coldfire FPU support.
9339         Define FP mode macro and associated attributes.
9340         Use it for float mode patterns.
9341         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
9342         (LIBCALL_VALUE): Use m68k_libcall_value.
9343         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
9344         (m68k_function_value): Ditto.
9345         (emit_move_sequence): Ditto.
9346         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
9347         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
9348         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
9349         (MULTILIB_EXCEPTIONS): Ditto.
9350         * config/m68k/m68k.opt: Add mcfv4e.
9351         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
9352         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
9353         (m68k_output_function_prologue): Save ColdFire FPU registers.
9354         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
9355         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
9356         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
9357         ColdFire FPU registers.
9358         (m68k_libcall_value, m68k_function_value): New functions.
9359         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
9360         (LIBCALL_VALUE): Use m68k_libcall_value.
9361         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
9362         (MASK_COLDFIRE): Add MASK_CFV4E.
9363         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
9364         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
9365         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
9366         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
9367         (GO_IF_LEGITIMATE_ADDRESS): Use it.
9368         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
9369         * doc/invoke.tex: Document -mcfv4e on m68k.
9370
9371 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
9372
9373         * doc/contribute.texi: Change CVS to SVN and update the corresponding
9374         URL.
9375
9376 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
9377
9378         PR c++/16190
9379         * c-opts.c (c_common_handle_option): Don't include
9380         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
9381         * doc/invoke.texi (C++ Dialect Options): Document that
9382         -Wnon-virtual-dtor is no longer included in -Wall.
9383
9384 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
9385
9386         * gcov.c (print_version), gcov-dump.c (print_version),
9387         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
9388         dates.
9389
9390 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
9391
9392         * df-scan.c (problem_SCAN): Added NULL reset function.
9393         (df_scan_reset_blocks): Added code to call reset block function
9394         (df_bb_refs_delete) Fixed comment.
9395         (df_insn_refs_delete): Made tolerant of deleting non existent info
9396         for dataflow problems that need to be reset.
9397         * df-core.c (df_set_blocks): Ditto.
9398         * df.h (struct df_problem): Added reset_fun.
9399         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
9400         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
9401         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
9402         functions to clear out all references to def-use or use-def chains.
9403
9404 2006-01-21  Ben Elliston  <bje@au.ibm.com>
9405
9406         * varasm.c (assemble_real): Initialise data array.
9407
9408 2006-01-20  Paul Brook  <paul@codesourcery.com>
9409
9410         Merge from csl-arm-branch.
9411         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
9412         * config/arm/arm.md (movdi): Force operands[1] to a register
9413         if we have a non-register source.
9414         (*arm_movdi, *movdf_soft_insn): Require that one of the
9415         operands be a register.
9416         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
9417         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
9418
9419 2006-01-20  DJ Delorie  <dj@redhat.com>
9420
9421         * varasm.c (initialize_constant_valid_p): Allow pointers
9422         initialized from integer constants of lesser precision.
9423         (output_constant): Allow non-int-sized pointer modes to be
9424         initialized from integer constants.
9425
9426 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
9427
9428         PR libstdc++/25524
9429         * cppdefault.h (struct default_include): Add multilib flag.
9430         * cppdefault.c (cpp_include_defaults): Set it.
9431         * c.opt (-imultilib): New option.
9432         * c-opts.c (imultilib): New.
9433         (c_common_handle_option): Handle -imultilib.
9434         (c_common_post_options): Likewise.
9435         * c-incpath.c (add_standard_paths, register_include_chains):
9436         Likewise.
9437         * c-incpath.h (register_include_chains): Add extra parameter.
9438         * gcc.c (do_spec_1): Generate -imultilib option.
9439         (The Specs Language): Update %I description.
9440         (process_command): Update copyright notice.
9441         * doc/cppopts.texi (-imultilib): Document.
9442         * doc/invoke.texi (-imultilib): Include in option summary.
9443         (%I): Update specs documentation.
9444
9445 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
9446
9447         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
9448
9449 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
9450
9451         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
9452         label numbers.
9453
9454 2006-01-20  Richard Guenther  <rguenther@suse.de>
9455         Steven Bosscher <stevenb.gcc@gmail.com>
9456
9457         PR rtl-optimization/24626
9458         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
9459         EDGE_TRUE_VALUE if in RTL mode.
9460
9461         Revert
9462         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
9463         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
9464
9465 2006-01-20  Dirk Mueller  <dmueller@suse.com>
9466
9467         PR c++/5520
9468         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
9469         instead of a special NOP marker.
9470         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
9471         NOP marker handling.
9472         * c-common.h (empty_body_warning): Add forward declaration.
9473         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
9474         Now uses IS_EMPTY_STMT() instead of special NOP markers.
9475
9476 2006-01-20  Paul Brook  <paul@codesourcery.com>
9477
9478         * Makefile.in (lang_checks): Keep going if mkdir fails.
9479
9480 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
9481
9482         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
9483         be able to clean out basic block when not necessary.
9484         (df_scan_free): Fixed to properly delete information if df is
9485         unused before calling df_finish.
9486         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
9487         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
9488         or comment typos.
9489         (df_bb_refs_delete): New function.
9490         (df_refs_delete): Moved per block code to df_bb_refs_delete.
9491         * df-core.c (df_set_blocks): Added code to properly clean out
9492         unused blocks if they are not part of the blocks to consider.
9493         Added additional null check.
9494         (df_compact_blocks): Added basic block parameter to free_bb_fun to
9495         be able to clean out basic block when not necessary
9496         * df.h (df_free_bb_function): Ditto.
9497         (df_bb_refs_delete): New function.
9498         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
9499         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
9500         basic block parameter to be able to clean out basic block when not
9501         necessary.
9502         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
9503         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
9504         Fixed to properly delete information if df is unused before
9505         calling df_finish.
9506
9507 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
9508
9509         PR rtl-optimization/25799
9510         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
9511         Corrected confluence operator to remove bits from op2 before oring
9512         with op1 rather than removing bits from op1.
9513         (df_ru_transfer_function): Corrected test on wrong bitmap which
9514         caused infinite loop.  Both of these problems were introduced in
9515         the dataflow rewrite.
9516
9517 2006-01-19  DJ Delorie  <dj@redhat.com>
9518
9519         * reload1.c (find_reload_regs): Note the details of reload
9520         failures in the dump file.
9521         (spill_failure): Likewise.
9522
9523 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
9524
9525         * loop-iv.c: Include df.h and hashtab.h.
9526         (enum iv_grd_result): New enum.
9527         (DF_REF_IV, DF_REF_IV_SET): New macros.
9528         (struct biv_entry): New.
9529         (df, bivs): New global variables.
9530         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
9531         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
9532         Removed.
9533         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
9534         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
9535         analyzed_for_bivness_p, record_biv): New functions.
9536         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
9537         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
9538         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
9539         UD chains.
9540         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
9541         analysed.
9542         (iv_number_of_iterations): Use new interface to iv analysis.
9543         * loop-unroll.c: Do not include varray.h.
9544         (analyze_iv_to_split_insn): Use new interface to iv
9545         analysis.
9546         * loop-unswitch.c (may_unswitch_on): Ditto.
9547         * df.c (df_bitmaps_free): Only work for bbs for that structures are
9548         allocated.
9549         (df_bb_modify): Realloc tables to the new index.
9550         (df_find_use): New function.
9551         * df.h (df_find_use): Declare.
9552         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
9553         outmode.
9554         * cfgloop.h (struct rtx_iv): Remove analysed field.
9555         (iv_get_reaching_def): Removed.
9556         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
9557         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
9558         (loop-iv.o): Add df.h and hashtab.h dependency.
9559         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
9560
9561 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
9562
9563         PR target/25668
9564         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
9565         Double TFmode.
9566         (__floatundisf, __floatundidf): Likewise.
9567         * libgcc2.h (IS_IBM_EXTENDED): Define.
9568
9569 2006-01-19  DJ Delorie  <dj@redhat.com>
9570
9571         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
9572
9573 2006-01-19  Paul Brook  <paul@codesourcery.com>
9574
9575         * config/arm/arm.c (arm_compute_func_type): Treat all functions
9576         as nothrow when unwinding tables are disabled.
9577
9578 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
9579
9580         PR testsuite/25171
9581         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
9582         of bit-field" when in system header.
9583
9584 2006-01-19  DJ Delorie  <dj@redhat.com>
9585
9586         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
9587         the 16 bit shift limit of the m16c.
9588
9589 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
9590
9591         PR target/22099
9592         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
9593         * config/i386/i386.c (output_set_got): Output the label if we have one
9594         for the TARGET_DEEP_BRANCH_PREDICTION case.
9595
9596 2006-01-19  Jan Hubicka  <jh@suse.cz>
9597             H.J. Lu  <hongjiu.lu@intel.com>
9598             Evandro Menezes <evandro.menezes@amd.com>
9599
9600         * invoke.texi (generic): Document
9601         (i686) Update.
9602         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
9603         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
9604         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
9605         (x86_use_incdec, x86_pad_returns): New variables
9606         (TARGET_CPU_DEFAULT_generic): New constant
9607         (TARGET_CPU_DEFAULT_NAMES): Add generic.
9608         (enum processor_type): Add generic32 and generic64.
9609         * i386.md (cpu attribute): Add generic32/generic64
9610         (movhi splitter): Behave sanely when both partial_reg_dependency and
9611         partial_reg_stall are set.
9612         (K8 splitters): Enable for generic as well.
9613         * predicates.md (incdec_operand): Use TARGET_INCDEC
9614         (aligned_operand): Avoid memory mismatch stalls.
9615         * athlon.md: Enable for generic64, new patterns for 128bit moves.
9616         * ppro.md: Enable for generic32
9617         * i386.c (generic64_cost, generic32_cost): New.
9618         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
9619         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
9620         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
9621         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
9622         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
9623         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
9624         x86_partial_reg_dependency, x86_memory_mismatch_stall,
9625         x86_accumulate_outgoing_args, x86_prologue_using_move,
9626         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
9627         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
9628         Enable for generic.
9629         (x86_use_incdec, x86_pad_returns): New.
9630         (override_options): Add generic32 and generic64, translate "generic"
9631         to generic32/generic64 and "i686" to "generic32", refuse
9632         "generic32"/"generic64" as arch target.
9633         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
9634         (ix86_reorg): Honor PAD_RETURNS.
9635
9636 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
9637
9638         * tree-pretty-print.c (dump_generic_node): Handle
9639         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
9640         * cgraph.c (cgraph_expand_queue): Rename from
9641         cgraph_analyze_queue.  Update all users.
9642         * cgraphunit.c (cgraph_assemble_pending_functions): Process
9643         cgraph_expand_queue.
9644         (cgraph_expand_all_functions): Likewise.
9645         (cgraph_finalize_pending_functions): Remove.  Update callers.
9646
9647         * tree.h (OMP_DIRECTIVE_P): Define.
9648         (OMP_PARALLEL_FN): Define.
9649         (OMP_PARALLEL_DATA_ARG): Define.
9650         (OMP_SECTIONS_SECTIONS): Define.
9651         * tree-pass.h (pass_expand_omp): Declare.
9652         * omp-low.c (struct omp_region): Declare.
9653         (struct omp_context): Remove fields 'parallel_type',
9654         'parallel_start_ix' and 'parallel_start_additional_args'.
9655         Update all users.
9656         (struct omp_for_data): Rename from struct expand_omp_for_data.
9657         (omp_regions): New static variable.
9658         (root_omp_region): New static variable.
9659         (find_omp_clause): Make static.
9660         (is_in_combined_parallel_ctx): Remove.
9661         (is_combined_parallel): New.
9662         (extract_omp_for_data): Move earlier in the file.
9663         (workshare_safe_to_combine_p): New.
9664         (get_ws_args_for): New.
9665         (determine_parallel_type): Move earlier in the file.
9666         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
9667         child function.
9668         (omp_copy_decl): Likewise.
9669         (create_omp_child_function): Likewise.
9670         (lookup_omp_region): New.
9671         (dump_omp_region): New.
9672         (debug_omp_region): New.
9673         (debug_all_omp_regions): New.
9674         (new_omp_region): New.
9675         (scan_omp_parallel): If parallel_nesting_level > 1, the
9676         directive is nested within another parallel directive.
9677         Set OMP_PARALLEL_FN.
9678         (scan_omp_for): Do not try to handle combined parallel+for
9679         cases.
9680         Remove FIXME comment.
9681         (scan_omp_nested): Remove.
9682         (scan_omp_1): Do not call scan_omp_nested when
9683         parallel_nesting_level is > 1.
9684         Do not change the DECL_CONTEXT of local variables found.
9685         (lookup_decl_in_outer_ctx): New.
9686         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
9687         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
9688         (lower_reduction_clauses): Rename from expand_reduction_clauses.
9689         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
9690         If CTX is nested, lookup VAR in the outer context when
9691         building copy assignment.
9692         (lower_send_clauses): Rename from expand_send_clauses.
9693         If CTX is nested, lookup VAR in the outer context when
9694         building copy assignments.
9695         (lower_send_shared_vars): Rename from expand_send_shared_vars.
9696         If CTX is nested, lookup VAR in the outer context when
9697         building copy assignments.
9698         (expand_parallel_call): Rename from build_parallel_call.
9699         Handle combined parallel+workshare cases.
9700         Re-implement to emit code into the CFG.
9701         (list2chain): New.
9702         (expand_omp_parallel): Re-implement to emit code into the CFG.
9703         Call move_sese_region_to_fn to outline the sub-graph
9704         containing the parallel region.
9705         (expand_omp_for_1): Remove.
9706         (expand_omp_for_generic): Re-implement to emit code into the
9707         CFG.
9708         (expand_omp_for_static_nochunk): Likewise.
9709         (expand_omp_for_static_chunk): Likewise.
9710         (expand_omp_for): Likewise.
9711         (expand_omp_sections): Likewise.
9712         (remove_exit_barriers): New.
9713         (expand_omp_synch): New.
9714         (expand_omp): New.
9715         (build_omp_regions_1): New.
9716         (build_omp_regions): New.
9717         (execute_expand_omp): New.
9718         (gate_expand_omp): New.
9719         (pass_expand_omp): Define.
9720         (lower_omp_sections): Rename from expand_omp_sections.
9721         Set OMP_SECTIONS_SECTIONS.
9722         (lower_omp_single_simple): Rename from expand_omp_single_simple.
9723         (lower_omp_single_copy): Rename from expand_omp_single_copy.
9724         (lower_omp_single): Rename from expand_omp_simple.
9725         (lower_omp_master): Rename from expand_omp_master.
9726         (lower_omp_ordered): Rename from expand_omp_ordered.
9727         (lower_omp_critical): Rename from expand_omp_critical.
9728         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
9729         (lower_omp_for): Re-implement.
9730         (lower_omp_parallel): Re-implement.
9731         (lower_regimplify): Rename from expand_regimplify.
9732         (lower_omp_1): Rename from expand_omp_1.
9733         If there are syntax errors in the program, replace every
9734         OpenMP directive with NOP.
9735         Call lower_omp_* instead of expand_omp_*.
9736         (lower_omp): Rename from expand_omp.
9737
9738         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
9739         * tree-gimple.h (enum omp_parallel_type): Remove.
9740         (gimple_boolify): Declare extern.
9741         (find_omp_clause, determine_parallel_type): Remove.
9742
9743         * gimple-low.c (lower_omp_directive): New.
9744         (lower_stmt): Call it.
9745         (record_vars_into): Move from ...
9746         (record_vars): ... here.
9747         Call record_vars_into with current_function_decl.
9748
9749         * gimplify.c (struct gimplify_ctx): Remove fields
9750         combined_pre_p and combined_ctxp.  Update users.
9751         (get_formal_tmp_var): Add documentation.
9752         (gimple_boolify): Make extern.
9753         (gimplify_expr_in_ctx): Remove.  Update callers.
9754         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
9755         will always be a BIND_EXPR.
9756         (gimplify_expr): Handle OMP_RETURN_EXPR.
9757         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
9758         (OMP_PARALLEL): Add 3 operands.
9759         (OMP_SECTIONS): Add 1 operand.
9760         (OMP_RETURN_EXPR): Define.
9761
9762         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
9763         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
9764         * tree-iterator.c (alloc_stmt_list): Assert that we are not
9765         creating a circular free list.
9766         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
9767
9768         * tree-flow.h (move_sese_region_to_fn): Declare.
9769         (record_vars_into): Declare.
9770         * tree-cfg.c (make_omp_sections_edges): New.
9771         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
9772         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
9773         OMP_SECTIONS and OMP_SECTION.
9774         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
9775         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
9776         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
9777         (gather_blocks_in_sese_region): New.
9778         (struct move_stmt_d): Declare.
9779         (move_stmt_r): New.
9780         (move_block_to_fn): New.
9781         (move_sese_region_to_fn): New.
9782
9783         * passes.c (init_optimization_passes): Schedule
9784         pass_expand_omp after pass_init_datastructures.
9785
9786         * tree-ssa-operands.c (get_expr_operands): Handle
9787         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
9788         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
9789
9790 2006-01-19  Jeff Law  <law@redhat.com>
9791
9792         * tree-vrp.c (extract_range_from_assert): Refine the result range
9793         if the variable referenced by the ASSERT_EXPR has a range and
9794         either the tentative result range or the previous range is a
9795         VR_ANTI_RANGE.
9796
9797 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
9798
9799         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
9800
9801 2006-01-19  Jan Hubicka  <jh@suse.cz>
9802
9803         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
9804
9805 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
9806
9807         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
9808         (expand_compound_operation, expand_field_assignment): Fail if the
9809         bit lengths of an extract operation are out of range.
9810         (make_extraction): Compute wanted_inner_mode based on the position
9811         and length of the extraction.  Make it extraction_mode for non-constant
9812         positions, and do not modify offset in that case.  When generating a
9813         new MEM, use a mode that can hold the extraction while keeping correct
9814         alignment.  Remove code that supported MEMs wrapped by USEs.
9815         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
9816
9817 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
9818
9819         * config/s390/s390.md ("Y", "y"): New mode attribute.
9820         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
9821         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
9822         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
9823         "*addsi3_imm_cc", "*addsi3_carry1_cc",
9824         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
9825         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
9826         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
9827         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
9828         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
9829         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
9830         "addsi3", "subsi3"): Insn patterns removed.
9831         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
9832         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
9833         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
9834         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
9835         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
9836         "*sub<mode>3_cconly2"): New insn patterns.
9837         ("addsi3", "subsi3"): New expanders.
9838
9839 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
9840
9841         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
9842         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
9843         existing STMT_VINFO_VECTYPE if available.
9844         (vect_mark_relevant): Add special handling for stmts that are
9845         marked as STMT_VINFO_IN_PATTERN_P.
9846         (vect_analyze_loop): Call vect_pattern_recog.
9847         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
9848         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
9849         stmt_info.
9850         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
9851         (vect_recog_func_ptr): New function-pointer type.
9852         * tree-vect-patterns.c: New file.
9853         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
9854         (vect_recog_dot_prod_pattern, vect_pattern_recog):
9855         (vect_pattern_recog_1): New functions.
9856         (vect_pattern_recog_funcs): New array of function pointers.
9857
9858         * tree-vectorizer.h (ternary_op): New enum value.
9859         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
9860         declaration. Revised documentation. Removed redundant dump prints.
9861         Removed redundant argument. Added support for reduction patterns.
9862         (vectorizable_reduction): Added support for reduction patterns.
9863         (vect_transform_stmt): Added support for patterns.
9864
9865         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
9866         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
9867         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
9868         (expand_widen_pattern_expr): New function.
9869         (init_optabs): Initialize new optabs udot_prod_optab,
9870         sdot_prod_optab.
9871         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
9872         (sdot_prod_optab, udot_prod_optab): Define new optabs.
9873         (expand_widen_pattern_expr): New function declaration.
9874         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
9875         tree-codes.
9876         * tree-inline.c (estimate_num_insns_1): Added cases for new
9877         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
9878         * tree-pretty-print.c (dump_generic_node): Likewise.
9879         (op_prio): Likewise.
9880         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
9881         * tree-ssa-operands.c (get_expr_operands): Added case for
9882         DOT_PROD_EXPR.
9883         * tree-vect-patterns.c (widened_name_p): New function.
9884         (vect_recog_dot_prod_pattern): Added function implementation.
9885         * tree-vect-transform.c (get_initial_def_for_reduction): Added
9886         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
9887         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
9888         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
9889
9890         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
9891         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
9892         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
9893         (init_optabs): Initialize new optabs widen_ssum_optab,
9894         widen_usum_optab.
9895         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
9896         (widen_ssum_optab, widen_usum_optab): Define new optabs.
9897         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
9898         use instead of type of def.
9899         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
9900         function implementation.
9901         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
9902         widen_ssumv8hi): New.
9903
9904         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
9905         patterns.
9906
9907 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
9908
9909         PR c/25805
9910         * c-decl.c (add_flexible_array_elts_to_size): New function.
9911         (finish_decl): Use it.
9912
9913 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
9914
9915         * diagnostic.h: Include options.h.
9916         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
9917         dependancies for diagnostic.h.
9918         * Makefile.in (DIAGNOSTIC_H): Add options.h.
9919
9920 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
9921
9922         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
9923         (ssa_ro_call_cache_valid): Ditto.
9924         * tree-ssa-alias.c (sort_tags_by_id): New function.
9925         (init_transitive_clobber_worklist): Ditto.
9926         (add_to_worklist): Ditto.
9927         (mark_aliases_call_clobbered): Ditto.
9928         (compute_tag_properties): Ditto.
9929         (set_initial_properties): Ditto.
9930         (compute_call_clobbered): Ditto.
9931         (compute_may_aliases):  Call compute_call_clobbered and grouping.
9932         (compute_flow_sensitive_aliasing): Remove clobbering related code.
9933         (compute_flow_insensitive_aliasing): Grouping now happens in our
9934         caller.
9935         (setup_pointers_and_addressables): Remove clobbering related code.
9936         (add_may_alias): Ditto.
9937         (replace_may_alias): Ditto.
9938         (get_nmt_for): Ditto.
9939         (create_global_var):
9940         (is_escape_site): Return an escape_type enumeration.
9941         * tree-flow-inline.h (is_call_clobbered): Global var does not
9942         imply call clobbered.
9943         (mark_call_clobbered): Take a reason for marking this. Remove
9944         marking of globalness, and cache invalidation.
9945         (clear_call_clobbered): Remove cache invalidation code.
9946         * tree-dfa.c (dump_variable): If details is on, dump the reason
9947         for escaping.
9948         * tree-outof-ssa.c (create_temp): Copy escape mask from original
9949         variable.
9950         * tree-flow.h (struct ptr_info_def): Add escape mask member.
9951         (struct var_ann_d): Ditto.
9952         (enum escape_type): New.
9953         (mark_call_clobbered): Adjust prototype.
9954         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
9955         are never call clobbered.
9956         Record reasons for escaping.
9957         * tree-ssa-structalias.h (is_escape_site): Update prototype.
9958         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
9959         (ssa_ro_call_cache_valid): Ditto.
9960         (clobbered_v_may_defs): Ditto.
9961         (clobbered_vuses): Ditto.
9962         (ro_call_vuses): Ditto.
9963         (clobber_stats): New.
9964         (init_ssa_operands): Zero out clobber stats.
9965         (fini_ssa_operands): Print out clobber stats.
9966         (get_call_expr_operands): Pass callee fndecl to
9967         add_call_read_ops).
9968         (add_call_clobber_ops): Remove use of cache.
9969         Add use of PURE_CONST information.
9970         (add_call_read_ops): Remove use of cache.
9971         Add use of static not_read information.
9972
9973 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
9974
9975         Introduce TLS descriptors for i386 and x86_64.
9976         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
9977         (TARGET_ANY_GNU_TLS): New macro.
9978         (enum tls_dialect): Added TLS_DIALECT_GNU2.
9979         (struct machine_function): Add tls_descriptor_call_expanded_p.
9980         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
9981         (ix86_current_function_calls_tls_descriptor): Likewise.
9982         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
9983         (override_options): Introduce gnu2 tls dialect.
9984         (ix86_frame_pointer_required): Functions containing TLSCALLs are
9985         not leaves.
9986         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
9987         Likewise.
9988         (legitimize_tls_address): Adjust logic for GNU2 TLS.
9989         (ix86_init_machine_status): Initialize new field.
9990         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
9991         (ix86_tls_module_base): New.
9992         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
9993         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
9994         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
9995         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
9996         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
9997         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
9998         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
9999         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
10000         * config/i386/predicates.md (tls_modbase_operand): New.
10001         (tp_or_register_operand): New.
10002
10003 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
10004
10005         * ipa-reference.c (check_operand): Allow FUNCTION_DECL.
10006         (look_for_address_of): Ditto.
10007         (ipa_init): Walk the function decls.
10008         (static_execute): Don't set readonly on FUNCTION_DECL's.
10009
10010 2006-01-18  Roger Sayle  <roger@eyesopen.com>
10011
10012         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
10013         for shifts where the source and destination registers are different.
10014
10015 2006-01-18  Paul Brook  <paul@codesourcery.com>
10016
10017         Merge from csl-arm-branch.
10018         2005-03-14  Julian Brown  <julian@codesourcery.com>
10019         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
10020         (aeabi_llsl): Likewise.
10021         (ashrdi3): Likewise.
10022         (aeabi_lasr): Likewise.
10023         (lshrdi3): Likewise.
10024         (aeabi_llsr): Likewise.
10025         2005-03-10  Julian Brown  <julian@codesourcery.com>
10026         * config.gcc: Disable shared libgcc for SymbianOS.
10027         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
10028
10029 2006-01-18  DJ Delorie  <dj@redhat.com>
10030
10031         * c-pragma.c (handle_pragma_diagnostic): New.
10032         (init_pragma): Register it.
10033         * doc/extend.texi: Document it.
10034
10035         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
10036         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
10037         (diagnostic_context): Add classify_diagnostic[].
10038         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
10039         as errors if they're overridden to DK_WARNING.
10040         (diagnostic_initialize): Initialize classify_diagnostic[].
10041         (diagnostic_set_kind_override): New.
10042         (diagnostic_report_diagnostic): Check for kind changes.
10043         * opts.c (common_handle_option): Take lang_mask.  Update callers.
10044         Handle OPT_Werror_.
10045         * common.opt (Werror=): New.
10046         * doc/invoke.texi: Document -Werror=*
10047
10048 2006-01-18  Jeff Law  <law@redhat.com>
10049
10050         * tree-vrp.c (test_for_singularity): Correct test for new
10051         min limit.  Use operand_equal_p rather than pointer equality
10052         for testing if new min/max values are equal.
10053
10054         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
10055         using range information until after propagation and folding.
10056
10057 2006-01-18  Richard Henderson  <rth@redhat.com>
10058             Aldy Hernandez  <aldyh@redhat.com>
10059             Jakub Jelinek  <jakub@redhat.com>
10060             Diego Novillo  <dnovillo@redhat.com>
10061
10062         * omp-low.c: New file.
10063         * c-omp.c: New file.
10064
10065 2006-01-18  Richard Henderson  <rth@redhat.com>
10066             Jakub Jelinek  <jakub@redhat.com>
10067             Diego Novillo  <dnovillo@redhat.com>
10068
10069         * doc/invoke.texi: Document -fopenmp.
10070         * tree-dump.h (debug_function): Declare.
10071         * hooks.c (hook_bool_tree_bool_false): New function.
10072         (hook_tree_tree_null): Remove.
10073         (hook_tree_tree_tree_null): New.
10074         * hooks.h: Update to match.
10075         * tree-pretty-print.c (debug_tree_chain): New.
10076         (print_generic_expr): Handle TDF_CHAIN.
10077         (dump_generic_node): Handle BLOCK.
10078         Do not abort with incomplete SWITCH_EXPRs.
10079         Do not dump body of an OpenMP directive if TDF_SLIM is given.
10080         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
10081         print space after directive name.
10082         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
10083         Handle OMP_MASTER and OMP_ORDERED.
10084         Handle printing of OMP_BODY just in one place, goto
10085         dump_omp_body in the rest of OMP_* nodes that have
10086         OMP_BODY.
10087         Don't handle clause nodes here.  Update omp statements to
10088         use dump_omp_clauses.
10089         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
10090         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
10091         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
10092         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
10093         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
10094         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
10095         Adjust output for GOMP_PARALLEL.
10096         (dump_omp_clauses): New.
10097         (print_declaration): Dump DECL_VALUE_EXPR.
10098         (op_symbol_1): Split out of op_symbol.
10099         (dumping_stmts): Remove.  Update all users.
10100         * cgraph.c (cgraph_analyze_queue): New.
10101         (cgraph_add_new_function): New.
10102         * cgraph.h (cgraph_analyze_queue): Declare.
10103         (cgraph_add_new_function): Declare.
10104         (cgraph_lower_function): Remove.
10105         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
10106         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
10107         and TYPE_P nodes in its default clause.
10108         (empty_body_p): New.
10109         (tree_range_check_failed): New.
10110         (build5_stat): New.
10111         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
10112         OMP_CLAUSE_REDUCTION_MERGE,
10113         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
10114         OMP_CLAUSE_PRIVATE_DEBUG,
10115         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
10116         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
10117         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
10118         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
10119         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
10120         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
10121         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
10122         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
10123         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
10124         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
10125         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
10126         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
10127         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
10128         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
10129         (TREE_RANGE_CHECK): New.
10130         (empty_body_p): Declare.
10131         (enum omp_clause_default_kind): New.
10132         (build_string_literal): Declare.
10133         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
10134         (build5_stat, build5): Declare.
10135         * tree-pass.h (TDF_CHAIN): Define.
10136         * tree-pass.h (PROP_gimple_lomp): Define.
10137         (pass_lower_omp): Declare.
10138         * diagnostic.h (debug_tree_chain): Declare.
10139         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
10140         mode_for_size.
10141         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
10142         * builtins.c (build_string_literal): Make extern.
10143         * gcc.c (include_spec_function): New.
10144         (static_spec_functions): Add it.
10145         (main): Move load of libgomp.spec ...
10146         (LINK_COMMAND_SPEC): ... here.
10147         (link_gomp_spec): New.
10148         (static_specs): Include it.
10149         (LINK_COMMAND_SPEC): Add link_gomp.
10150         (GOMP_SELF_SPECS): New.
10151         (driver_self_specs): Include it.
10152         (switch_matches): Don't mark inline.
10153         (main): Load libgomp.spec.
10154         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
10155         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
10156         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
10157         * tree-gimple.h (enum omp_parallel): Declare.
10158         (determine_parallel_type): Declare.
10159         (omp_firstprivatize_variable): Declare.
10160         (omp_reduction_init): Declare.
10161         (diagnose_omp_structured_block_errors): Declare.
10162         (struct walk_stmt_info): Add want_return_expr.
10163         (struct walk_stmt_info): Add want_bind_expr, want_locations.
10164         (find_omp_clause): Declare.
10165         (insert_field_into_struct): Declare.
10166         (struct walk_stmt_info): Move from tree-nested.c
10167         (walk_stmts): Declare.
10168         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
10169         to 200505.
10170         * cgraphunit.c (cgraph_lower_function): Make static.
10171         (cgraph_finalize_pending_functions): New.
10172         (cgraph_finalize_function): Call it.
10173         (cgraph_finalize_compilation_unit): Likewise.
10174         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
10175         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
10176         (BT_FN_UINT_UINT): New.
10177         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
10178         DEF_FUNCTION_TYPE_VAR_4): Document.
10179         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
10180         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
10181         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
10182         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
10183         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
10184         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
10185         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
10186         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
10187         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
10188         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
10189         into separate files.
10190         (DEF_GOMP_BUILTIN): New.
10191         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
10192         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
10193         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
10194         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
10195         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
10196         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
10197         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
10198         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
10199         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
10200         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
10201         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
10202         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
10203         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
10204         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
10205         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
10206         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
10207         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
10208         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
10209         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
10210         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
10211         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
10212         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
10213         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
10214         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
10215         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
10216         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
10217         * sync-builtins.def: New file, moved from builtins.def.
10218         * omp-builtins.def: New file, moved from builtins.def.
10219         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
10220         * gimple-low.c (lower_function_body): Clear data.
10221         (lower_stmt): Do not handle COMPOUND_EXPR.
10222         Remove call to print_node_brief.
10223         * c-tree.h (c_finish_omp_clauses): New prototype.
10224         (C_DECL_THREADPRIVATE_P): Define.
10225         (lookup_name_no_remap, c_omp_remap_private): Remove
10226         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
10227         (check_for_loop_decls): Update decl.
10228         (lookup_name_no_remap, c_omp_remap_private): Declare.
10229         (build_indirect_ref, build_modify_expr, pushdecl,
10230         pushdecl_top_level): Move to c-common.h.
10231         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
10232         before the switch, but just in the 2 places that need it.
10233         * c-decl.c (diagnose_mismatched_decls): Do not check for
10234         mismatched thread-local attributes when OLDDECL is marked
10235         threadprivate and NEWDECL has no thread-local attributes.
10236         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
10237         (c_gimple_diagnostics_recursively): Rename from
10238         c_warn_unused_result_recursively.  Invoke
10239         diagnose_omp_structured_block_errors.
10240         (check_for_loop_decls): Return a singular decl found.
10241         * langhooks.c (lhd_omp_predetermined_sharing): Return
10242         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
10243         (lhd_omp_firstprivatize_type_sizes): New.
10244         (lhd_omp_assignment): New.
10245         (lhd_omp_predetermined_sharing): New.
10246         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
10247         (struct lang_hooks_for_types): Add
10248         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
10249         omp_predetermined_sharing, omp_disregard_value_expr,
10250         omp_private_debug_clause, omp_clause_default_ctor,
10251         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
10252         (c_finish_omp_clauses): New.
10253         (c_finish_bc_stmt): Diagnose break within omp for.
10254         (c_begin_omp_parallel, c_finish_omp_parallel): New.
10255         (build_unary_op): Return error_mark after reporting
10256         a readonly_error.
10257         (build_modify_expr): Likewise.
10258         * gimplify.c: Include optabs.h and pointer-set.h.
10259         (enum gimplify_omp_var_data): Declare.
10260         (struct gimplify_omp_ctx): Declare.
10261         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
10262         and combined_ctxp.
10263         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
10264         (push_gimplify_context, pop_gimplify_context): Allow nesting.
10265         (splay_tree_compare_decl_uid): New.
10266         (new_omp_context): New.
10267         (delete_omp_context): New.
10268         (gimple_add_tmp_var): Call omp_add_variable.
10269         (gimplify_bind_expr): Likewise.
10270         (gimplify_var_or_parm_decl): If omp_notice_variable returned
10271         true, disregard DECL_VALUE_EXPR on the decl if any.
10272         (gimplify_expr_in_ctx): New.
10273         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
10274         omp_add_variable, omp_notice_variable, omp_is_private
10275         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
10276         gimplify_adjust_omp_clauses, gimplify_omp_parallel
10277         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
10278         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
10279         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
10280         gimplify_omp_atomic): New.
10281         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
10282         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
10283         OMP_CRITICAL and OMP_ATOMIC.
10284         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
10285         * c-pragma.h (enum pragma_kind): Add
10286         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
10287         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
10288         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
10289         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
10290         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
10291         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
10292         PRAGMA_OMP_THREADPRIVATE.
10293         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
10294         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
10295         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
10296         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
10297         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
10298         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
10299         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
10300         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
10301         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
10302         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
10303         * tree-ssa-dce.c (find_control_dependence): Do not assume that
10304         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
10305         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
10306         OpenMP directives.
10307         (struct nesting_info): Add field_map,
10308         suppress_expansion, debug_var_chain.
10309         (create_nesting_tree): Initialize them.
10310         (lookup_field_for_decl): Use field_map.
10311         (get_nonlocal_debug_decl, get_local_debug_decl): New.
10312         (convert_local_omp_clauses): New.
10313         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
10314         (walk_body): Split out of walk_function.
10315         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
10316         (convert_nonlocal_reference): Handle omp statements.
10317         (convert_local_reference): Likewise.
10318         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
10319         (unnest_nesting_tree): New.
10320         (lower_nested_functions): Call it.
10321         (insert_field_into_struct): Make extern.
10322         (struct walk_stmt_info): Move to tree-gimple.h.
10323         (walk_stmts): Make extern.
10324         * omp-builtins.def: New file.
10325         * tree-iterator.c (expr_only): Clarify comment.
10326         * c-common.h (pushdecl_top_level, pushdecl,
10327         build_modify_expr, build_indirect_ref,
10328         c_finish_omp_master, c_finish_omp_critical,
10329         c_finish_omp_ordered, c_finish_omp_barrier,
10330         c_finish_omp_atomic, c_finish_omp_flush,
10331         c_finish_omp_for, c_split_parallel_clauses,
10332         omp_clause_default_kind, c_omp_sharing_predetermined,
10333         c_omp_remap_decl): Declare.
10334         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
10335         (OBJS-common): Add omp-low.o.
10336         (c-omp.o, omp-low.o): Add.
10337         (gimplify.o): Add dependency on $(OPTABS_H).
10338         (GTFILES): Add omp-low.c.
10339         (gt-stringpool.h): Add.
10340         * tree-cfg.c (set_bb_for_stmt): Do not update the
10341         block-to-labels map if we are currently expanding to RTL.
10342         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
10343         checks.
10344         Handle IDENTIFIER_NODE.
10345         (tree_verify_flow_info): Do not ICE when emitting error
10346         messages about invalid labels.
10347         (dump_function_to_file): Reset CFUN before emitting the body
10348         of the function.
10349         (debug_function): New.
10350         * passes.c (init_optimization_passes): Schedule
10351         pass_lower_omp.
10352         * langhooks-def.h (lhd_omp_predetermined_sharing,
10353         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
10354         Declare.
10355         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
10356         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
10357         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
10358         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
10359         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
10360         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
10361         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
10362         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
10363         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
10364         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
10365         (LANG_HOOK_DECLS): Use them.
10366
10367 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
10368             Richard Henderson  <rth@redhat.com>
10369             Jakub Jelinek  <jakub@redhat.com>
10370             Diego Novillo  <dnovillo@redhat.com>
10371
10372         * c-parser.c (pragma_omp_clause): Define.
10373         (c_parser_declaration_or_fndef): Document OpenMP syntax.
10374         (c_parser_compound_statement): Likewise.
10375         (c_parser_statement): Likewise.
10376         (c_parser_pragma): Handle omp pragmas.
10377         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
10378         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
10379         (c_parser_omp_clause_name, check_no_duplicate_clause,
10380         c_parser_omp_variable_list,
10381         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
10382         c_parser_omp_clause_copyprivate,
10383         c_parser_omp_clause_default,
10384         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
10385         c_parser_omp_clause_lastprivate,
10386         c_parser_omp_clause_nowait,
10387         c_parser_omp_clause_num_threads,
10388         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
10389         c_parser_omp_clause_reduction,
10390         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
10391         c_parser_omp_all_clauses, c_parser_omp_structured_block,
10392         c_parser_omp_atomic, c_parser_omp_barrier,
10393         c_parser_omp_critical, c_parser_omp_flush,
10394         c_parser_omp_for_loop, c_parser_omp_for,
10395         c_parser_omp_master, c_parser_omp_ordered,
10396         c_parser_omp_sections_scope, c_parser_omp_sections,
10397         c_parser_omp_parallel, c_parser_omp_single,
10398         c_parser_omp_construct, c_parser_omp_threadprivate): New.
10399         * c-pragma.c (init_pragma): Do omp pragma registration here.
10400         * c.opt (fopenmp): New flag.
10401
10402 2006-01-18  Eric Christopher  <echristo@apple.com>
10403
10404         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
10405         * config/darwin.h (GOMP_SELF_SPECS): Define.
10406
10407 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
10408
10409         * rtl.h: Remove the prototype for reg_alloc.
10410
10411 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
10412
10413         PR target/25731
10414         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
10415         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
10416         sjlj and dwarf2 exception handling.
10417         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
10418         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
10419         * pa/pa.c (function_value): Treat complex and vector types as
10420         aggregates.
10421         (function_arg): Likewise.  Only pass scalar floats in the floating
10422         point argument registers.
10423         * pa/t-slibgcc-dwarf-ver: New file.
10424         * pa/t-slibgcc-sjlj-ver: New file.
10425         * pa/t-slibgcc-elf-ver: Delete file.
10426
10427 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
10428
10429         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
10430         unlikely_test_section_p test.
10431
10432 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
10433
10434         * mode-switching.c (optimize_mode_switching): Make it static.
10435         * basic-block.h: Remove the prototype for
10436         optimize_mode_switching.
10437
10438         * modulo-sched.c (sms_schedule): Make it static.
10439         * rtl.h: Remove the prototype for sms_schedule.
10440
10441         * postreload-gcse.c (gcse_after_reload_main): Make it static.
10442         * rtl.h: Remove the prototype for gcse_after_reload_main.
10443
10444         * reg-stack.c (reg_to_stack): Make it static.
10445         * rtl.h: Remove the prototype for reg_to_stack.
10446
10447         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
10448         Make them static.
10449         * rtl.h: Remove the prototypes for regrename_optimize and
10450         copyprop_hardreg_forward.
10451
10452 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
10453
10454         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
10455         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
10456         Test against the appropriate null constant for the mode.
10457         If 'fixup_overlap' is true, swap the operands if they overlap.
10458         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
10459         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
10460         alpha_split_tmode_pair and adjust for above change.
10461         * config/alpha/alpha.md (movtf_internal): Adjust call to
10462         alpha_split_tfmode_pair and rely on it to swap the operands.
10463         (movti_internal): New insn and post-reload splitter.
10464         (movti): New expander.
10465
10466 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
10467
10468         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
10469         operands.
10470
10471 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
10472
10473         * rtlanal.c (global_reg_mentioned_p_1,
10474         global_reg_mentioned_p): Remove.
10475         * rtl.h: Remove the prototype for global_reg_mentioned_p.
10476
10477         * flow.c (initialize_uninitialized_subregs): Make it static.
10478         * rtl.h: Remove the prototype for
10479         initialize_uninitialized_subregs.
10480
10481         * function.c (instantiate_virtual_regs): Make it static.
10482         * function.h: Remove the prototype for
10483         instantiate_virtual_regs.
10484
10485         * regmove.c (regmove_optimize, combine_stack_adjustments):
10486         Make them static.
10487         * rtl.h: Remove the prototypes for regmove_optimize and
10488         combine_stack_adjustments.
10489
10490 2006-01-17  Roger Sayle  <roger@eyesopen.com>
10491
10492         * config/i386/i386.c (COSTS_N_BYTES): New macro.
10493         (size_cost): Encode costs in bytes so that a reg-reg addition is
10494         equivalent to COSTS_N_INSNS(1).
10495         (override_options): Use the size_cost.branch_cost as the default
10496         ix86_branch_cost when optimizing for size.
10497
10498 2006-01-18  Ben Elliston  <bje@au.ibm.com>
10499
10500         * Makefile.in (D32PBIT_FUNCS): New.
10501         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
10502         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
10503         D64PBIT_FUNCS and D128PBIT_FUNCS.
10504         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
10505         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
10506         D128PBIT are set.
10507         (decnumber_dep): Define.
10508         * doc/libgcc.texi (Decimal float library routines): New node.
10509         * config/dfp-bit.h, config/dfp-bit.c: New files.
10510
10511 2006-01-18  Ben Elliston  <bje@au.ibm.com>
10512
10513         * expr.c (emit_move_change_mode): Always adjust addresses, not
10514         just during reload.  Copy replacements only during reload.
10515         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
10516         emit_move_via_integer.
10517
10518 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
10519
10520         * Makefile.in (check-%, check-consistency): Use $${srcdir}
10521         instead of $(srcdir) and ${srcdir}.
10522
10523 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
10524
10525         PR target/592
10526         PR middle-end/11135
10527         * arm.h (struct machine_function): Add pic_reg.
10528         * arm.c (arm_pic_register): Make unsigned.
10529         (arm_override_options): Only set arm_pic_register if
10530         TARGET_SINGLE_PIC_BASE.
10531         (use_return_insn): Only test for a pic register if it is fixed.
10532         (arm_compute_save_reg0_reg12_mask): Likewise.
10533         (thumb_compute_save_reg_mask): Likewise.
10534         (legitimate_pic_operand): Factor out some known invariants.
10535         (legitimize_pic_address): If we don't have a fixed pic register,
10536         then set up a pseudo in the function entry sequence.  Handle the
10537         pic base being in a pseudo.
10538         (arm_load_pic_register): Handle the pic register being in a pseudo.
10539         (arm_expand_prologue): Only set up the pic register if it is fixed.
10540         (thumb_expand_prologue): Likewise.
10541         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
10542         (pic_load_addr_based_insn): Likewise.
10543         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
10544         fixed.
10545
10546 2006-01-18  Ben Elliston  <bje@au.ibm.com>
10547
10548         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
10549         decimal float modes for all floating point registers.
10550
10551         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
10552         match_code "mem" with match_test "macho_lo_sum_memory_operand".
10553
10554 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
10555
10556         PR c/25682
10557         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
10558         even when the pointer is not NULL.
10559
10560 2006-01-16  Ian Lance Taylor  <ian@airs.com>
10561
10562         * common.opt (ftoplevel-reorder): New option.
10563         * cgraph.c (cgraph_asm_nodes): New global variable.
10564         (cgraph_asm_last_node): New static variable.
10565         (cgraph_order): New global variable.
10566         (cgraph_create_node): Set new order field.
10567         (cgraph_varpool_node): Likewise.
10568         (decide_is_variable_needed): Return true if not
10569         flag_toplevel_reorder.
10570         (cgraph_add_asm_node): New function.
10571         * cgraph.h (struct cgraph_node): Add order field.
10572         (struct cgraph_varpool_node): Add order field.
10573         (struct cgraph_asm_node): Define.
10574         (cgraph_asm_nodes, cgraph_order): Declare.
10575         (cgraph_add_asm_node): Declare.
10576         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
10577         function.
10578         (cgraph_varpool_assemble_pending_decls): Call it.
10579         (cgraph_output_pending_asms): New static function.
10580         (cgraph_finalize_compilation_unit): Call it.
10581         (struct cgraph_order_sort): Define.
10582         (cgraph_output_in_order): New static function.
10583         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
10584         !flag_toplevel_reorder case.
10585         * c-parser.c: Include "cgraph.h".
10586         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
10587         assemble_asm.
10588         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
10589         than -fno-unit-at-a-time.
10590         * doc/invoke.texi (Option Summary): Mention
10591         -fno-toplevel-reorder.
10592         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
10593         -funit-at-a-time documentation.
10594
10595 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
10596             Kazu Hirata  <kazu@codesourcery.com>
10597
10598         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
10599
10600 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
10601
10602         * Makefile.in (FUNCTION_H): New.  Use it instead of
10603         function.h throughout the file.
10604         * function.h: Include tree.h.
10605
10606 2006-01-17  Ben Elliston  <bje@au.ibm.com>
10607
10608         * recog.c: Separate some functions with whitespace.
10609
10610 2006-01-16  Richard Henderson  <rth@redhat.com>
10611
10612         Merge from gomp branch:
10613         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
10614         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
10615         and rename from struct inline_data.  Rename callee* to dst*;
10616         caller* to src*; add copy_decl hook, transform_call_graph_edges,
10617         transform_new_cfg, transform_return_to_modify, and
10618         transform_lang_insert_block flags; remove cloning_p, versioning_p,
10619         update_clones_p.
10620         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
10621         (copy_decl_for_dup): Remove.
10622         * tree-inline.c (struct inline_data): Move to header.
10623         (insert_decl_map): Export.
10624         (remap_decl): Update for member name changes.  Use copy_decl hook.
10625         Allow for replacement to be a non-decl.  Remove dead code.
10626         (remap_type_1): Check for existing mapping.
10627         (remap_type): Export.
10628         (remap_decls): Update for member name changes.
10629         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
10630         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
10631         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
10632         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
10633         (tree_function_versioning, build_duplicate_type): Likewise.
10634         (copy_body_r): Likewise.  Export.
10635         (copy_decl_for_dup): Split into ...
10636         (copy_decl_for_dup_finish, copy_decl_to_var,
10637         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
10638         (replace_ref_tree, inlining_p): Remove.
10639
10640 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
10641
10642         * ifcvt.c (if_convert): Make it static.
10643         * rtl.h: Remove the prototype for if_convert.
10644
10645         * local-alloc.c (local_alloc): Make it static.
10646         * rtl.h: Remove the prototype for local_alloc.
10647
10648         * loop.c (loop_optimize): Make it static.
10649         * cfgloop.h: Remove the prototype for loop_optimize.
10650         * rtl.h: Likewise.
10651
10652 2006-01-16  DJ Delorie  <dj@redhat.com>
10653
10654         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
10655         mems.
10656
10657 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
10658
10659         * pa.md: Disparage copies between general and floating-point registers
10660         in 32-bit move patterns.
10661
10662 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
10663
10664         PR testsuite/25741
10665         * Makefile.in (check-%): Depend on site.exp instead of
10666         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
10667         directories.
10668
10669 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
10670
10671         * global.c (global_alloc): Make it static.
10672         * rtl.h: Remove the prototype for global_alloc.
10673
10674 2006-01-16  Richard Guenther  <rguenther@suse.de>
10675
10676         * tree-ssa-alias.c (struct used_part): Add write_only field.
10677         (get_or_create_used_part_for): Initialize it to true.
10678         (create_overlap_variables_for): Don't create structure variables
10679         for structures that only are written to.
10680         (find_used_portions): Handle MODIFY_EXPR to track whether a
10681         structure is only written to.
10682
10683 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
10684
10685         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
10686         static.
10687         * basic-block.h: Remove the prototype for
10688         partition_hot_cold_basic_blocks.
10689
10690 2006-01-16  Rafael Ãvila de EspÃï¿½ndola <rafael.espindola@gmail.com>
10691
10692         * cppspec.c (lang_specific_spec_functions): Remove.
10693         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
10694         * gcc.h (lang_specific_spec_functions): Remove.
10695         * gccspec.c (lang_specific_spec_functions): Remove.
10696
10697 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
10698
10699         * combine.c (record_value_for_reg): Invalidate registers
10700         if INSN is null.
10701         (record_dead_and_set_regs_1): Likewise, by passing them to
10702         record_value_for_reg.
10703         (record_dead_and_set_regs): Invalidate stores made by a
10704         call.  We do not combine across a call, but we still
10705         relied on equivalences.
10706
10707 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
10708
10709         * tree-vrp.c (extract_range_from_binary_expr): Cope with
10710         vrp_int_const_binop returning non-constant nodes.
10711
10712 2006-01-16  Paul Brook  <paul@codesourcery.com>
10713
10714         * config/m68k/m68k.c (output_move_const_into_data_reg):
10715         Output correct mnemonic for mvz and mvs.
10716
10717 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
10718
10719         * rtl-factoring.c: Add sequence abstraction algorithm.
10720         * cfgcleanup.c (outgoing_edges_match): Extra checks.
10721         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
10722         ABNORMAL edges.
10723         (block_has_preserve_label): New function.
10724         * common.opt: Register new pass.
10725         * Makefile.in: Ditto.
10726         * passes.c: Ditto.
10727         * timevar.def: Ditto.
10728         * tree-pass.h: Ditto.
10729         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
10730         * rtl.h (make_jump_insn_raw): Add forward decl.
10731         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
10732
10733 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
10734             Roger Sayle  <roger@eyesopen.com>
10735
10736         * fold-const.c (fold_minmax): New static function.
10737         (fold_binary) <MIN_EXPR>: Call it.
10738         <MAX_EXPR>: Likewise.
10739         * stor-layout.c (place_field): Use DECL_SIZE consistently
10740         in the computation of the new record size.
10741
10742 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
10743
10744         * cse.c (cse_condition_code_reg): Make it static.
10745         * rtl.h: Remove the prototype for cse_condition_code_reg.
10746
10747         * combine.c (combine_instructions): Make it static.
10748         * rtl.h: Remove the prototype for combine_instructions.
10749
10750 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
10751
10752         PR target/25168
10753         * tree.c (get_file_function_name_long): Concatenate the first global
10754         object name with a string derived from the input filename of the object
10755         for type "F".
10756
10757 2006-01-16  Ben Elliston  <bje@au.ibm.com>
10758
10759         * config/i386/winnt-stubs.c: Update FSF address.
10760         * config/xtensa/ieee754-df.S: Ditto.
10761         * config/xtensa/ieee754-sf.S: Ditto.
10762
10763 2006-01-14  Ian Lance Taylor  <ian@airs.com>
10764
10765         * ifcvt.c (noce_init_if_info): New static function, broken out of
10766         noce_process_if_block.
10767         (noce_process_if_block): Call noce_init_if_info.
10768         (check_cond_move_block): New static function.
10769         (cond_move_process_if_block): New static function.
10770         (process_if_block): Call cond_move_process_if_block.
10771
10772 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
10773
10774         * cselib.c (hash_table): Rename to cselib_hash_table.
10775         (cselib_clear_table, discard_useless_values,
10776         remove_useless_values, cselib_lookup_mem, cselib_lookup,
10777         cselib_init, cselib_finish): Adjust uses of hash_table.
10778
10779 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
10780
10781         PR tree-optimization/25485
10782         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
10783         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
10784         is known to be false and true, respectively.
10785
10786 2006-01-14  Richard Guenther  <rguenther@suse.de>
10787
10788         PR tree-optimization/22548
10789         PR tree-optimization/22555
10790         PR tree-optimization/22501
10791         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
10792         * params.def (salias-max-array-elements): New parameter.
10793         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
10794         * doc/invoke.texi (salias-max-array-elements): Document.
10795         * tree-flow-inline.h (var_can_have_subvars): We also handle
10796         arrays now.
10797         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
10798         COMPONENT_REF.
10799         * tree-ssa-structalias.c (params.h): Include.
10800         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
10801         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
10802         (get_constraint_for): For ADDR_EXPR operating on something
10803         containing an ARRAY_REF, add all subvars to the solution.
10804         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
10805         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
10806         for creating MUST_DEFs.
10807         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
10808
10809 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
10810
10811         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
10812         functions.
10813         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
10814         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
10815         number_of_iterations_le): New functions.
10816         (number_of_iterations_special): Removed.
10817         (number_of_iterations_exit): Do not use number_of_iterations_special.
10818         * tree.c (unsigned_type_for): Always return integer type.
10819
10820 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
10821         Richard Guenther  <rguenther@suse.de>
10822
10823         PR rtl-optimization/24257
10824         * gcse.c (find_moveable_store): Only consider a store movable
10825         when the SET_SRC of the insn can be assigned to a register.
10826
10827 2006-01-14  Ian Lance Taylor  <ian@airs.com>
10828
10829         * tree.c (tree_not_class_check_failed): New function.
10830         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
10831         (tree_not_class_check_failed): Declare.
10832
10833 2006-01-13  Ian Lance Taylor  <ian@airs.com>
10834
10835         * reload1.c (do_output_reload): Add assertion rejecting a
10836         CALL_INSN.
10837
10838 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
10839
10840         * combine.c (struct reg_stat): Add new fields truncation_label and
10841         truncated_to_mode.
10842         (record_value_for_reg): Reset truncated_to_mode.
10843         (record_truncated_value): New function.
10844         (check_promoted_subreg): Call it.  Rename to check_conversions.
10845         (combine_instructions): Rename check_promoted_subreg to
10846         check_conversions.
10847         (reg_truncated_to_mode): New function.
10848         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
10849         (gen_lowpart_or_truncate): New function.
10850         (force_to_mode): Use it instead of gen_lowpart.
10851
10852 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
10853
10854         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
10855         VAR is a tag, not its type tag.
10856
10857 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
10858
10859         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
10860         alternatives to match style of other entries.
10861         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
10862
10863 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
10864
10865         PR tree-optimization/25771
10866         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
10867         SSA_NAMES.
10868
10869 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
10870
10871         PR tree-opt/24365
10872         * tree-inline.c (declare_return_variable): If the return variable
10873         was marked as a non gimple complex, set the return slot variable
10874         to be a non gimple comple variable.
10875
10876 2006-01-13  Richard Guenther  <rguenther@suse.de>
10877
10878         * builtins.c (expand_builtin_sincos): New function.
10879         (expand_builtin_mathfn_3): Remove dead code, sin and cos
10880         do not set errno.
10881         (expand_builtin): Expand sincos using expand_builtin_sincos.
10882
10883 2006-01-12  DJ Delorie  <dj@redhat.com>
10884
10885         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
10886         shift counts, separate SI shifts for m32c vs m16c, pass shift type
10887         so that constant shifts can be split.
10888         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
10889         (m32c_valid_pointer_mode): Make static.
10890         (shift_gen_func_for): New.
10891         (m32c_prepare_shift): Use it.  Split large const shifts into
10892         multiple shifts.
10893         * config/m32c/predicates.md (shiftcount_operand): Allow more
10894         general operands.
10895         (longshiftcount_operand): New.
10896         * doc/md.texi (Machine Constraints): Document In6.
10897
10898 2006-01-13  Ben Elliston  <bje@au.ibm.com>
10899
10900         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
10901         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
10902         documentation.
10903
10904 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
10905
10906         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
10907         to try to avoid clobbering pieces of structures when we know
10908         something about the whole structure.
10909         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
10910
10911 2006-01-13  Ben Elliston  <bje@au.ibm.com>
10912
10913         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
10914         return in memory, as this is no limitation is no longer present.
10915
10916 2006-01-12  DJ Delorie  <dj@redhat.com>
10917
10918         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
10919         mova with fb, and for fb+0 -> An.
10920
10921         * config/m32c/mov.md (peephole2): Fix enabling logic.
10922
10923         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
10924         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
10925         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
10926         FINI_ARRAY_SECTION_ASM_OP): Define.
10927
10928         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
10929         variable.
10930         (m32c_legitimize_reload_address): New logic to reload FB to An.
10931         (m32c_output_reg_push): Add newline.
10932         (m32c_output_reg_pop): Likewise.
10933
10934 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
10935
10936         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
10937
10938 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
10939
10940         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
10941
10942 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
10943
10944         * config/sh/predicates.md (sh_rep_vec): Add parallel to
10945         match_code.
10946
10947 2006-01-11  Ben Elliston  <bje@au.ibm.com>
10948
10949         * rtlanal.c (find_reg_note): Assert insn is not null.
10950
10951 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
10952
10953         * df-scan.c (df_hard_reg_init): Move declaration of i outside
10954         ifdef.
10955
10956 2006-01-11  Jeff Law  <law@redhat.com>
10957
10958         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
10959         hold edge pairs.
10960         (mark_threaded_blocks, register_jump_thread): New functions.
10961         (thread_through_all_blocks): Remove unwanted argument.  No
10962         longer rely on e->aux to communicate thread target info.
10963         Call mark_threaded_blocks.  Release the threaded_blocks
10964         bitmap and threaded_edges vector when complete.
10965         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
10966         (threaded_blocks): Remove.
10967         (tree_ssa_dominator_optimize): Remove initialization and
10968         finalization of threaded_blocks.  Simplify call to
10969         thread_through_all_blocks.
10970         (thread_across_edge): Call register_jump_thread rather than
10971         storing thread information into e->aux.
10972         (free_all_edge_infos): Simplify now that e->aux is no longer
10973         used to communicate with thread_through_all_blocks.
10974         * tree-flow.h (thread_through_all_blocks): Update prototype.
10975         (register_jump_thread): Prototype.
10976
10977 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
10978
10979         * df-core.c (df_compact_blocks, df_bb_replace): Use
10980         SET_BASIC_BLOCK instead of BASIC_BLOCK.
10981
10982 2006-01-11  Richard Guenther  <rguenther@suse.de>
10983
10984         PR tree-optimization/25734
10985         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
10986         stop propagation after successful propagation to the LHS.
10987
10988 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
10989
10990         * basic-block.h (control_flow_graph): Change the type of
10991         x_basic_block_info to VEC(basic_block,gc) *.
10992         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
10993         basic_block_info.
10994         (SET_BASIC_BLOCK): New.
10995         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
10996         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
10997         * cfgbuild.c (find_basic_blocks): Likewise.
10998         * cfglayout.c (fixup_reorder_chain): Likewise.
10999         * cfgrtl.c (create_basic_block_structure,
11000         rtl_create_basic_block): Likewise.
11001         * ifcvt.c (find_if_case_1): Likewise.
11002         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
11003         Likewise.
11004
11005 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
11006
11007         * Makefile.in: Removed rotted odf.c entry.
11008
11009 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
11010
11011         PR target/25706
11012         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
11013         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
11014         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
11015         output pattern modifier, not %e.
11016         * config/cris/cris.c (cris_op_str): Update comment about pattern
11017         modifier.
11018         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
11019         before falling through into...
11020         <case 'E'>: Redefined from old 'e' case.
11021
11022 2006-01-11  Jan Hubicka  <jh@suse.cz>
11023
11024         PR target/25042
11025         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
11026
11027 2006-01-11  Jan Hubicka  <jh@suse.cz>
11028
11029         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
11030         * i386.c (x86_decompose_lea): Kill.
11031         (ix86_rtx_costs): Kill.
11032
11033 2006-01-11  Jan Hubicka  <jh@suse.cz>
11034
11035         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
11036         * cgraph.h (cgraph_node): Add inline_decl.
11037         (cgraph_insert_node_to_hashtable): Declare.
11038         (save_inline_function_body): Declare.
11039         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
11040         clones.
11041         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
11042         (cgraph_function_versioning): Update call of tree_function_versioning.
11043         (save_inline_function_body): New function.
11044         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
11045         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
11046         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
11047         (cgraph_default_inline_p): Likewise.
11048         (cgraph_decide_inlining_incrementally): Likewise.
11049         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
11050         (copy_bb): Kill saving; do updating of clones.
11051         (copy_cfg_body): Kill saving.
11052         (initialize_inlined-parameters): Likewise.
11053         (expand_call_inline): Likewise.
11054         (save_body): Kill.
11055         (tree_function_versioning): New parameter "update_clones".
11056         (inlining_p): Kill saving.
11057         * tree-inline.h (tree_function_versioning): Update prototype.
11058         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
11059         saving.
11060
11061 2006-01-11  Ian Lance Taylor <ian@airs.com>
11062
11063         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
11064         Allow undoing set of machine mode.
11065         (do_SUBST): Use enums instead of is_int.
11066         (do_SUBST_MODE): New function.
11067         (SUBST_MODE): New macro.
11068         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
11069         reg and trying to replace reg_regno_rtx with a new register.
11070         (undo_all): Use new enums, handle undoing a PUT_MODE change.
11071         (simplify_set): Use SUBST_MODE.
11072         (distribute_notes): Remove code that tried to update reg notes
11073         for regno_reg_rtx changes.
11074
11075 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
11076
11077         PR tree-optimization/23109
11078         PR tree-optimization/23948
11079         PR tree-optimization/24123
11080
11081         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
11082         * tree-cfg.c (single_noncomplex_succ): New.
11083         * tree-flow.h (single_noncomplex_succ): Declare it.
11084         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
11085         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
11086         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
11087         insert_bb, register_division_in, insert_reciprocals,
11088         replace_reciprocal, free_bb): New.
11089         (execute_cse_reciprocals_1): Rewritten.
11090         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
11091         Do not commit any edge insertion.  Always compute dominators and
11092         create the allocation pool.
11093         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
11094         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
11095         * targhooks.c (default_min_divistions_for_recip_mul): New.
11096         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
11097         * passes.c (init_optimization_passes): Run recip after tree loop
11098         optimizations.
11099         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
11100
11101 2006-01-11  Danny Berlin <dberlin@dberlin.org>
11102             Kenneth Zadeck <zadeck@naturalbridge.com>
11103
11104         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
11105         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
11106         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
11107         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
11108         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
11109         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
11110         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
11111         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
11112         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
11113         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
11114         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
11115         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
11116         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
11117         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
11118         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
11119         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
11120         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
11121         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
11122         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
11123         DF_SCAN_POST_ALLOC): New macros.
11124         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
11125         df_free_bb_function, df_local_compute_function, df_init_function,
11126         df_dataflow_function, df_confluence_function_0,
11127         df_confluence_function_n, df_transfer_function,
11128         df_finalizer_function, df_free_function, df_dump_problem_function,
11129         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
11130         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
11131         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
11132         df_urec_bb_info, ) New types.
11133         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
11134         variables.
11135         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
11136         df_analyze_simple_change_some_blocks,
11137         df_analyze_simple_change_one_block, df_compact_blocks,
11138         df_bb_replace, df_bb_regno_last_use_find,
11139         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
11140         df_insn_regno_def_p, df_find_def, df_find_use,
11141         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
11142         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
11143         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
11144         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
11145         debug_df_chain, df_get_dependent_problem, df_chain_create,
11146         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
11147         df_grow_bb_info, df_chain_dump, df_print_bb_index,
11148         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
11149         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
11150         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
11151         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
11152         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
11153         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
11154         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
11155         df_ref_remove, df_insn_refs_delete, df_refs_delete,
11156         df_reorganize_refs, df_set_state, df_hard_reg_init,
11157         df_read_modify_subreg_p) New public functions.
11158         * df-core.c: The core dataflow solver and glue routines for rtl
11159         dataflow.
11160         (df_init, df_add_problem, df_set_blocks, df_finish,
11161         df_hybrid_search_forward, df_hybrid_search_backward,
11162         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
11163         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
11164         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
11165         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
11166         df_reg_defined, df_find_use, df_reg_used, df_dump,
11167         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
11168         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
11169         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
11170         debug_df_useno, reset_df_after_reload): New functions.
11171         * df-scan.c: The scanning fuctions, once in df.c, completely
11172         rewritten so that they now fully model the functionality of
11173         register usage at the backend.
11174         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
11175         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
11176         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
11177         df_grow_insn_info, df_rescan_blocks, df_ref_create,
11178         df_get_artificial_defs, df_get_artificial_uses,
11179         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
11180         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
11181         df_refs_delete, df_reorganize_refs, df_set_state,
11182         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
11183         df_def_record_1, df_defs_record, df_uses_record,
11184         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
11185         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
11186         df_record_exit_block_uses, df_hard_reg_init): New functions.
11187
11188         * df-problems.c: Seven concrete dataflow problems that use the
11189         scanning in df-scan.c and are solved by the engine in df-core.c.
11190         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
11191         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
11192         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
11193         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
11194         df_ru_free_bb_info, df_ru_alloc,
11195         df_ru_bb_local_compute_process_def,
11196         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
11197         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
11198         df_ru_transfer_function, df_ru_free, df_ru_dump,
11199         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
11200         df_rd_free_bb_info, df_rd_alloc,
11201         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
11202         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
11203         df_rd_transfer_function, df_rd_free, df_rd_dump,
11204         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
11205         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
11206         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
11207         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
11208         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
11209         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
11210         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
11211         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
11212         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
11213         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
11214         df_urec_mark_reg_change, df_urec_check_earlyclobber,
11215         df_urec_mark_reg_use_for_earlyclobber,
11216         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
11217         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
11218         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
11219         df_urec_dump, df_urec_add_problem, df_chain_alloc,
11220         df_chain_create_bb_process_use, df_chain_create_bb,
11221         df_chain_finalize, df_chain_free, df_chains_dump,
11222         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
11223         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
11224         df_reg_lifetime): New functions.
11225         * df.c: Deleted file.
11226         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
11227         consistent with new df api.
11228         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
11229         rest_of_handle_sms): Ditto.
11230         * web.c (unionfind_union, union_defs, entry_register, web_main):
11231         Ditto.
11232         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
11233         invariant_expr_equal_p, find_defs, check_dependencies,
11234         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
11235         free_inv_motion_data, move_loop_invariants): Ditto.
11236         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
11237         Update dependencies.
11238         (odf.c): Added defective entry that was deleted later in day.
11239         * sched-deps.c (sched_analyze_1): Ditto.
11240
11241 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
11242
11243         * tree-ssa-operands.c (get_expr_operands): Record addressable
11244         variables directly.  Do not call add_stmt_operands for CONST_DECLs
11245         and ARRAY_DECLs.
11246         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
11247         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
11248
11249 2006-01-11  Ben Elliston  <bje@au.ibm.com>
11250
11251         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
11252         function returns true in the positive case.
11253
11254 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
11255
11256         PR target/20754
11257         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
11258         for SI, DI, SF and DF modes.  Add alternatives to copy between
11259         general and floating point registers to the 32-bit patterns.
11260         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
11261         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
11262         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
11263         generating 64-bit code.
11264         * config/pa/pa.c (output_move_double): Handle copies between general
11265         and floating registers.
11266
11267 2006-01-10  Stuart Hastings  <stuart@apple.com>
11268
11269         * config/i386/i386.md (set_got): Update.
11270         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
11271         (builtin_setjmp_receiver): Mach-O support.
11272         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
11273         (GOT_SYMBOL_NAME): Define.
11274         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
11275         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
11276         * config/i386/i386.c (override_options): Revise for Darwin.
11277         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
11278         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
11279         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
11280         * config/i386/i386-protos.h (output_set_got): Likewise.
11281         * config/darwin.c (machopic_legitimize_pic_address): Update
11282         regs_ever_live[].
11283
11284 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
11285
11286         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
11287         when MODE isn't BLKmode.
11288
11289 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
11290
11291         PR rtl-optimization/25367
11292         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
11293
11294 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
11295
11296         PR target/25718
11297         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
11298         for a negative bound.
11299
11300 2006-01-10  Richard Guenther  <rguenther@suse.de>
11301
11302         * tree-ssa-structalias.c (get_constraint_for_component_ref):
11303         Never override with anything constraint.
11304
11305 2006-01-10  Jan Beulich  <jbeulich@novell.com>
11306
11307         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
11308         256 bits when optimize_size.
11309
11310 2006-01-10  Jan Beulich  <jbeulich@novell.com>
11311
11312         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
11313         MASK_ALIGN_DOUBLE.
11314         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
11315         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
11316         arguments.
11317
11318 2006-01-10  Ben Elliston  <bje@au.ibm.com>
11319
11320         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
11321         float modes.
11322         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
11323         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
11324         (USE_FP_FOR_ARG): Reject decimal float modes.
11325         (function_arg_advance): Likewise.
11326         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
11327         (rs6000_handle_altivec_attribute): Do not permit decimal floating
11328         point types in AltiVec vectors.
11329         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
11330         (rs6000_libcall_value): Likewise.
11331
11332 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
11333
11334         * config/xtensa/ieee754-df.S: New file.
11335         * config/xtensa/ieee754-sf.S: New file.
11336         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
11337         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
11338         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
11339
11340 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
11341
11342         * config/sh/predicates.md (binary_float_operator,
11343         binary_logical_operator, commutative_float_operator,
11344         equality_comparison_operator, greater_comparison_operator,
11345         less_comparison_operator, logical_operator,
11346         noncommutative_float_operator, shift_operator,
11347         symbol_ref_operand, unary_float_operator): Remove redundant
11348         conditionals.
11349
11350 2006-01-09  Jeff Law  <law@redhat.com>
11351
11352         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
11353         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
11354         now unused arguments.  Callers updated.
11355         (eliminate_redundant_computations): Remove now unused arguments,
11356         callers updated.
11357         (local_fold): Remove, no longer used.
11358         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
11359         and moved to...
11360         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
11361         (simplify_cond): New function.
11362         (forward_propagate_into_cond): Call simplify_cond.
11363
11364 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
11365
11366         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
11367         (*vec_extractv2di_1_sse): New.
11368
11369 2006-01-09  Ben Elliston  <bje@au.ibm.com>
11370
11371         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
11372
11373 2006-01-08  Richard Guenther  <rguenther@suse.de>
11374
11375         * tree-ssa-structalias.c (get_constraint_for): Remove
11376         anyoffset argument.
11377         (get_constraint_for_component_ref): Likewise.
11378         (do_deref): Likewise.
11379         (get_constraint_for): Likewise.
11380         (do_structure_copy): Likewise.
11381         (handle_ptr_arith): Likewise.
11382         (find_func_aliases): Likewise.  Remove unused need_anyoffset
11383         variable.
11384
11385 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
11386             Kaz Kojima  <kkojima@gcc.gnu.org>
11387
11388         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
11389         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
11390         (EXTRA_CONSTRAINT_C16): Remove.
11391         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
11392         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
11393         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
11394         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
11395         constants of SHmedia.  Handle nested constant expressions of
11396         SHmedia correctly.
11397         (andcosts): Fix the costs for SHmedia constants.
11398         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
11399         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
11400         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
11401         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
11402         (movv4hi_i, movv2si_i): Likewise.
11403         (movsi_const): Adjust the second operand of ior so to match with
11404         the Csu constraint.
11405         (movdi_const, movdi_const_32bit): Likewise.
11406         (movdi_const_16bit+1): Don't sign-extend LOW.
11407         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
11408         step.
11409         (*double_shori): Fix the split condition.  Use GEN_INT instead
11410         of get_int_mode calls.  Mask lower 16-bit of the argument of
11411         the last GEN_INT.
11412         (sym2GOTPLT): Remove.
11413         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
11414         gen_rtx_UNSPEC.
11415         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
11416         instead of EXTRA_CONSTRAINT_C16.
11417
11418 2006-01-07  Ian Lance Taylor  <ian@airs.com>
11419             David Edelsohn  <edelsohn@gnu.org>
11420
11421         PR rtl-optimization/25662
11422         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
11423         for constant operands instead of simplify_gen_binary.
11424         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
11425         after trying simplify_binary_operation
11426
11427 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
11428
11429         * tree.c (iterative_hash_expr): Hash decls based on UID.
11430
11431 2006-01-06  Eric Christopher  <echristo@apple.com>
11432
11433         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
11434         (TARGET_UNWIND_EMIT): Fix spelling.
11435         * target.h (gcc_target): Add except_table_label.
11436         * except.c (output_function_exception_table): Use.
11437         * varasm.c (default_emit_except_table_label): New.
11438         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
11439         define.
11440         (asm_out): Add here.
11441         * output.h (default_emit_except_table_label): Prototype.
11442         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
11443         * config/darwin.c (darwin_emit_except_table_label): Define.
11444         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
11445
11446 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
11447
11448         PR tree-optimization/18527
11449         * tree-ssa-loop-niter.c (number_of_iterations_cond,
11450         number_of_iterations_special, number_of_iterations_exit):
11451         Move base and step of an iv to a single structure.  Add
11452         no_overflow flag, and use it in # of iterations analysis.
11453         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
11454         folded_casts argument.
11455         (simple_iv): Pass base and step in a structure.  Set no_overflow
11456         flag.
11457         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
11458         Evaluate expensiveness of computing # of iterations instead of
11459         the final expression.
11460         * tree-scalar-evolution.h (affine_iv): New structure.
11461         (simple_iv): Declaration changed.
11462         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
11463         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
11464         find_givs_in_stmt): Changed due to simple_iv change.
11465
11466 2006-01-06  Jeff Law  <law@redhat.com>
11467
11468         PR ada/24994
11469         * tree-cfg.c (bsi_replace): Rename final argument from
11470         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
11471         change (stmt -> orig_stmt).
11472         * tree-eh.c (verify_eh_throw_stmt_node): New function.
11473         (bsi_remove): Add new argument.  Remove EH information
11474         if requested.
11475         (verify_eh_throw_table_statements): New function.
11476         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
11477         updated.
11478         * tree-optimize.c (execute_free_cfg_annotations): Verify
11479         the EH throw statement table after removing annotations.
11480         * except.h (verify_eh_throw_table_statements): Prototype.
11481         * tree-flow.h (bsi_remove): Update prototype.
11482         * tree-vrp.c (remove_range_assertions): Add new argument to
11483         bsi_remove call.
11484         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
11485         * tree-complex.c (expand_complex_div_wide): Likewise.
11486         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
11487         * tree-tailcall.c (eliminate_tailcall): Likewise.
11488         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
11489         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
11490         * tree-nrv.c (tree_nrv): Likewise.
11491         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
11492         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
11493         (combine_blocks): Likewise.
11494         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
11495         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
11496         (cleanup_control_flow): Likewise.
11497         (remove_forwarder_block): Likewise.
11498         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
11499         * tree-sra.c (sra_replace): Likewise.
11500         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
11501         (forward_propagate_single_use_vars): Likewise.
11502         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
11503         * tree-inline.c (expand_call_inline): Likewise.
11504         * tree-vect-transform.c (vect_transform_loop): Likewise.
11505         * tree-outof-ssa.c (rewrite_trees): Likewise.
11506         * tree-cfg.c (make_goto_expr_edges): Likewise.
11507         (cleanup_dead_labels): Likewise.
11508         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
11509         (bsi_move_before, bsi_move_after): Likewise.
11510         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
11511         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
11512
11513 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
11514
11515         PR tree-opt/25528
11516         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
11517         and IMAGPART_EXPR.
11518         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
11519         on non gimple variables.  Also add checks at the top for decls and
11520         mtags.
11521         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
11522         complex types.
11523         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
11524         and IMAGPART_EXPR for creating MUST_DEFs.
11525         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
11526         and NAME_MEMORY_TAG separately from the DECLs.
11527
11528 2006-01-06  Richard Guenther  <rguenther@suse.de>
11529
11530         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
11531         annotation, if necessary.
11532         * tree-ssa-pre.c (create_expression_by_pieces): Remove
11533         redundant calls to update_stmt.
11534         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
11535         Likewise.
11536
11537 2006-01-05  Richard Henderson  <rth@redhat.com>
11538
11539         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
11540
11541 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
11542
11543         * c-typeck.c: Update copyright date.
11544
11545 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
11546
11547         * c-typeck.c (build_c_cast): Always warn when casting
11548         from a pointer to an integer of different size, even if
11549         the node was constant.
11550
11551 2006-01-05  Richard Guenther  <rguenther@suse.de>
11552
11553         PR tree-optimization/22555
11554         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
11555         if one structure field is an array.
11556         * tree-ssa-operands.c (get_expr_operands): Continue scanning
11557         operands even if we found a subvar, but ignore VOPs in this
11558         case.
11559         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
11560         for renaming.
11561         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
11562
11563 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
11564
11565         PR middle-end/24998
11566         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
11567
11568 2006-01-05  Richard Guenther  <rguenther@suse.de>
11569             Diego Novillo  <dnovillo@redhat.com>
11570
11571         * tree-pass.h (TODO_remove_unused_locals): Define.
11572         * gimple-low.c (expand_var_p, remove_useless_vars,
11573         pass_remove_useless_vars): Remove.  Update all users.
11574         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
11575         (remove_unused_locals): New function.
11576         * tree-flow.h (remove_unused_locals): Declare.
11577         * passes.c (execute_todo): Call remove_unused_locals if
11578         TODO_remove_unused_locals is set.
11579         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
11580         * tree-ssa-dce.c (pass_dce): Likewise.
11581         * tree-outof-ssa.c (pass_del_ssa): Likewise.
11582
11583 2006-01-05  Richard Guenther  <rguenther@suse.de>
11584
11585         * tree-flow.h (struct fieldoff): Decompose field to
11586         type, size and decl.
11587         * tree-ssa-alias.c (create_sft): Take type as parameter.
11588         (create_overlap_variables_for): Store type, size and decl
11589         in the fieldoff structure.
11590         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
11591         of struct fieldoff.
11592         (push_fields_onto_fieldstack): Likewise.
11593         (create_variable_info_for): Likewise.  Use offset for the
11594         SFT name if the decl is not available.
11595
11596 2006-01-04  Paul Brook  <paul@codesourcery.com>
11597
11598         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
11599
11600 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
11601
11602         * lambda-code.c (can_put_in_inner_loop): Relax
11603         restrictions.
11604         (can_put_after_inner_loop): New function.
11605         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
11606         (perfect_nestify): Change to make copies and modify uses.
11607
11608 2006-01-04  Richard Henderson  <rth@redhat.com>
11609
11610         Merge from gomp branch:
11611         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
11612         via integer constant.
11613         (pragma_lex): Remove.
11614         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
11615         rather than parsing it.
11616         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
11617         handle_pragma_extern_prefix): Add %< %> quotes.
11618         (registered_pragmas): New.
11619         (c_register_pragma_1): New.
11620         (c_register_pragma): Use it.
11621         (c_register_pragma_with_expansion): Likewise.
11622         (c_invoke_pragma_handler): New.
11623         (init_pragma): Use cpp_register_deferred_pragma directly for
11624         pch_preprocess.
11625         * c-pragma.h (enum pragma_kind): New.
11626         (pragma_handler): New.
11627         (c_invoke_pragma_handler): Declare.
11628         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
11629         CPP_PRAGMA_EOL.
11630         * c-common.h (c_common_pch_pragma): Update decl.
11631         * Makefile.in (c-parser.o): Update dependencies.
11632         (GTFILES): Add c-pragma.h.
11633         * c-parser.c (struct c_token): Add pragma_kind.
11634         (struct c_parser): Add in_pragma.
11635         (c_lex_one_token): Always initialize keyword and pragma_kind.
11636         Extract data for CPP_PRAGMA.
11637         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
11638         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
11639         Don't allow CPP_PRAGMA_EOL if in_pragma.
11640         (c_parser_consume_pragma): New.
11641         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
11642         (c_parser_skip_to_end_of_parameter): Likewise.
11643         (c_parser_skip_to_end_of_block_or_statement): Likewise.
11644         (c_parser_skip_to_pragma_eol): New.
11645         (c_parser_external_declaration): Handle CPP_PRAGMA.
11646         (c_parser_compound_statement_nostart): Likewise.
11647         (c_parser_statement_after_labels): Likewise.
11648         (c_parser_pragma): New.
11649         (pragma_lex): Likewise.
11650         (c_parser_pragma_pch_preprocess): New.
11651         (c_parser_new): Merge into ...
11652         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
11653
11654 2006-01-04  Jeff Law  <law@redhat.com>
11655
11656         PR ada/24994
11657         * tree-cfg.c (bsi_replace): Remove the original statement
11658         from the EH throw statement table.
11659
11660 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
11661
11662         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
11663         make the prototype extern "C" and add throw ().
11664
11665         PR target/25554
11666         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
11667         and pos non-negative and pos + len <= 32.
11668         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
11669         drop pos + len < HOST_BITS_PER_WIDE_INT test.
11670         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
11671
11672         PR c/25559
11673         * c-common.c (handle_vector_size_attribute): Reject zero vector size
11674         as well as sizes not multiple of component size.
11675
11676         PR debug/25562
11677         * function.c (instantiate_expr): New function.
11678         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
11679         walk its DECL_VALUE_EXPR with instantiate_expr.
11680
11681         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
11682         DW_OP_deref{,_size} if address isn't going to be added.
11683
11684 2006-01-04  Ben Elliston  <bje@au.ibm.com>
11685
11686         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
11687         * config/fp-bit.c: Likewise.
11688
11689 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
11690
11691         * dominance.c: Add comment about why we use DFS numbering
11692         of dominance tree.
11693
11694 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
11695             Richard Henderson  <rth@redhat.com>
11696
11697         Merge from gomp-branch:
11698         * varasm.c (assemble_variable): Handle thread-local COMMON data.
11699         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
11700
11701 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
11702
11703         PR rtl-optimization/25578
11704         * combine.c (combine_simplify_rtx, force_to_mode): Don't
11705         pass a parameter to simplify_shift_const if changing ASHIFTRT
11706         to LSHIFTRT.
11707
11708 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
11709
11710         * builtins.c (get_builtin_sync_mem): New function.
11711         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
11712         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
11713         Call get_builtin_sync_mem to generate mem rtx.
11714
11715 2006-01-03  Richard Guenther  <rguenther@suse.de>
11716
11717         PR c/25183
11718         * stmt.c (add_case_node): Make sure to clear overflow flags
11719         from ranges.
11720
11721 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
11722
11723         Merge from gomp-branch.
11724         * config/sparc/sync.md: New file.
11725         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
11726         UNSPECV_LDSTUB): New constants.
11727         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
11728         * config/sparc/predicates.md (memory_reg_operand): New predicate.
11729         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
11730         prototype.
11731
11732 2006-01-03  Roger Sayle  <roger@eyesopen.com>
11733
11734         * combine.c (reg_subword_p): New predicate to test whether the
11735         destination of a set refers to a subword/piece of a register.
11736         (try_combine): Generalize the code to merge the setting of a
11737         pseudo to a constant followed by a set of a subword of that
11738         register to a constant.
11739
11740 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
11741
11742         * basic-block.h (control_flow_graph): Change the type of
11743         x_label_to_block_map to VEC(basic_block,gc) *.
11744         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
11745         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
11746
11747         * tree-ssa-propagate.c (cfg_blocks): Change the type to
11748         VEC(basic_block,heap) *.
11749         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
11750         ssa_prop_fini): Adjust the uses of cfg_blocks.
11751
11752 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
11753
11754         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
11755         COMPONENT_REFs.
11756         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
11757         hashing trees instead of a pointer hash.
11758         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
11759         compare for MEM_EXPR.
11760
11761         PR rtl-optimization/25130
11762         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
11763         when comparing MEMs for GCSE
11764
11765 2006-01-03  Ben Elliston  <bje@au.ibm.com>
11766
11767         * targhooks.h (default_decimal_float_supported_p): Declare.
11768         * targhooks.c (default_decimal_float_supported_p): Define.
11769         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
11770         `default_decimal_float_supported_p'.
11771         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
11772
11773 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
11774
11775         * combine.c (apply_distributive_law <SUBREG>): Check
11776         TRULY_NOOP_TRUNCATION.
11777
11778 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
11779
11780         * dwarf2out.c (have_switched_text_section): Delete.
11781         (have_multiple_function_sections): New.
11782         (have_location_lists): Make 'bool'.
11783         (add_AT_loc_list): Use 'true' not '1'.
11784         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
11785         (output_loc_list): Use have_multiple_function_sections.
11786         (output_ranges): Likewise.
11787         (dwarf2out_begin_function): Set have_multiple_function_sections if
11788         necessary.
11789         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
11790         Check function_section rather than DECL_SECTION_NAME.
11791         (dwarf2out_finish): Use have_multiple_function_sections.
11792         Don't clear have_location_lists.
11793
11794 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
11795             Jan Hubicka  <jh@suse.cz>
11796
11797         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
11798         case of conditional jump jumping to the next instruction.
11799         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
11800         cases of conditional jump jumping to the next instruction.
11801
11802 2006-01-02  Jan Hubicka  <jh@suse.cz>
11803
11804         * i386.c (*_cost): Add COSTS_N_INSNS.
11805         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
11806
11807 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
11808
11809         PR target/25259
11810         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
11811
11812 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
11813
11814         * config/arm/arm.c (all_fpus): Fix comment typo.
11815         * config/darwin.c: Likewise.
11816         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
11817         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
11818         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
11819
11820 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
11821
11822         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
11823         (rs6000_split_compare_and_swapqhi): New.
11824         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
11825         (sync_compare_and_swapqhi_internal): New.
11826         * config/rs6000/rs6000-protos.h: Declare.