gcc/ChangeLog

   1 2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>
   2
   3         * config/sh/linux-atomic.asm: New file.
   4         * config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.
   5
   6 2006-03-31  DJ Delorie  <dj@redhat.com>
   7
   8         * config/m32c/cond.md: Set condition flags properly throughout.
   9         * config/m32c/minmax.md: Likewise.
  10         * config/m32c/prologue.md: Likewise.
  11         * config/m32c/bitops.md: Likewise.
  12         * config/m32c/muldiv.md: Likewise.
  13         * config/m32c/mov.md: Likewise.
  14         * config/m32c/addsub.md: Likewise.
  15         * config/m32c/m32c.md: Likewise.
  16         * config/m32c/jump.md: Likewise.
  17         * config/m32c/shift.md: Likewise.
  18
  19         * config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
  20         conditionally output the pattern for this.
  21         * config/m32c/m32c.c (flags_needed_for_conditional): New.
  22         (m32c_compare_redundant): New.
  23         (m32c_output_compare): New.
  24         * config/m32c/m32c-protos.h (m32c_output_compare): New.
  25
  26         * config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
  27         dest, not src.  Allow other 4-byte modes.
  28
  29 2006-03-30  Denis Chertykov  <denisc@overta.ru>
  30
  31         * doc/md.texi: Refer to avr/constraints.md instead of
  32         avr/avr.h.
  33
  34 2006-03-30  Roger Sayle  <roger@eyesopen.com>
  35
  36         * expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
  37         signed vs. unsigned comparison failures on some hosts.
  38
  39 2006-03-31  Alan Modra  <amodra@bigpond.net.au>
  40
  41         PR target/26459
  42         * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
  43         change to FLOAT_REGS.
  44
  45         * config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
  46         (rs6000_override_options): Use it.
  47         (rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
  48         only for -mabi=spe/no-spe and -mabi=altivec.
  49
  50 2006-03-30  Geoffrey Keating  <geoffk@apple.com>
  51
  52         * config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
  53         !Zdynamiclib.
  54
  55 2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>
  56
  57         * Makefile.in: Rename docdir to gcc_docdir.
  58
  59 2006-03-30  Roger Sayle  <roger@eyesopen.com>
  60
  61         PR target/17959
  62         * expr.c (emit_group_store):  Optimize group stores into a pseudo
  63         register by using a paradoxical subreg to initialize the destination
  64         if the first or last member of the group specifies a "low part".
  65
  66 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
  67
  68         PR target/26734
  69         * rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
  70         * target.h (struct gcc_target.speculate_insn): Change type of the
  71         second parameter to 'int'.
  72         * lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
  73         the second operand of the DEPS_LIST.
  74         (copy_DEPS_LIST_list): Update reference to the second operand of the
  75         DEPS_LIST.
  76         * rtl.h (alloc_DEPS_LIST): Update signature.
  77         * sched-int.h (ds_t): Change typedef to 'int'.
  78         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
  79
  80 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
  81
  82         * haifa-sched.c (try_ready): Change condition to restore
  83         non-speculative pattern of the instruction.
  84         (process_insn_depend_be_in_spec): Code to keep probability of the
  85         speculative dependence non-decreasing.
  86
  87 2006-03-30  Jie Zhang  <jie.zhang@analog.com>
  88
  89         * config/bfin/bfin.c (single_move_for_strmov): Renamed to...
  90         (single_move_for_movmem): ... this. Also change all uses.
  91         (bfin_expand_strmov): Renamed to...
  92         (bfin_expand_movmem): ... this. Also change all uses.
  93         * config/bfin/bfin.md (movstrsi): Renamed to...
  94         (movstrsi): ...this.
  95
  96 2006-03-30  Paolo Bonzini  <bonzini@gnu.org>
  97
  98         PR tree-optimization/26830
  99
 100         * tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
 101         (copy_prop_visit_stmt): Remove write-only variable ann.
 102         (init_copy_prop): Check variable loop depth here.  Do not simulate
 103         memory-tag and virtual operand PHIs except for store copy prop.
 104
 105 2006-03-30  Richard Guenther  <rguenther@suse.de>
 106
 107         * config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
 108         variants with double arguments.
 109
 110 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
 111
 112         * genpreds.c (write_tm_constrs_h): Delete variable p.
 113         * genconditions.c (write_header): Add tm-constrs.h to included
 114         headers.
 115         * genpeep.c (main): Add toplev.h to included headers.
 116         * Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
 117         (build/genpeep.o): Add toplev.h dependency.
 118         * config/rs6000/constraints.md: Add "W" constraint.
 119
 120 2006-03-29  Roger Sayle  <roger@eyesopen.com>
 121
 122         * stor-layout.c (mode_for_size_tree): Remove restiction on type
 123         sizes by correctly testing whether the size fits a host integer.
 124         (initialize_sizetypes): Use set_min_and_max_values_for_integral_type
 125         to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
 126         SImode range for the default sizetype and bitsizetype.
 127
 128 2006-03-29  Roger Sayle  <roger@eyesopen.com>
 129
 130         * convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
 131         and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
 132         quickly if the argument is already of the correct type.
 133         Call fold_build1 instead of build1.  Tidy up blank lines.
 134
 135 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
 136
 137         * genemit.c (main): Add tm-constrs.h to included headers.
 138         * genoutput.c (output_prologue): Add tm-constrs.h to included headers.
 139         * genpeep.c (main): Add tm-constrs.h to included headers.
 140         * genpreds.c (write_satisfies_constraint_fns): Rename to ...
 141         (write_tm_constrs_h): this and write complete file.
 142         (write_tm_preds_h): Do not emit satisfies_constraint fns.
 143         (write_insn_preds_c): Add tm-constrs.h to included headers.
 144         (gen_constrs): New variable.
 145         (parse_option): Parse "-c".
 146         (main): Invoke write_tm_constrs_h.
 147         * genrecog.c (write_header): Add tm-constrs.h to included headers.
 148         * Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
 149         (object_out_file): Add tm-constrs.h dependency.
 150         (insn-emit.o): Same.
 151         (insn-output.o): Same.
 152         (insn-peep.o): Same.
 153         (insn-preds.o): Same.
 154         (insn-recog.o): Same.
 155         (tm-constsr.h): New target.
 156         (s-constrs-h): New target.
 157
 158         * config/rs6000/constraints.md: New file.
 159         * config/rs6000/rs6000.c: Include tm-constrs.h.
 160         (num_insn_constant_wide): Convert to satisfies_constraint.
 161         (rs6000_rtx_costs): Convert to satisfies_constraint.
 162         * config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
 163         (CONST_OK_FOR_LETTER_P): Delete.
 164         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
 165         (EXTRA_CONSTRAINT): Delete.
 166         (EXTRA_MEMORY_CONSTRAINT): Delete.
 167         (EXTRA_ADDRESS_CONSTRAINT): Delete.
 168         * config/rs6000/predicates.md: Convert to satisfies_constraint.
 169         * config/rs6000/rs6000.md: Include constraints.md.  Convert to
 170         satisfies_constraint.
 171
 172         * config/i386/i386.c: Include tm-constrs.h.
 173
 174 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
 175
 176         * tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
 177         * tree-data-ref.c (find_data_references_in_loop,
 178         compute_data_dependences_for_loop): Use pointers to VEC.
 179         (analyze_all_data_dependences): Adjust calls.
 180         * tree-data-ref.h (find_data_references_in_loop,
 181         compute_data_dependences_for_loop): Adjust declarations.
 182         * tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
 183         compute_data_dependences_for_loop.
 184
 185 2006-03-29  Paul Brook  <paul@codesourcery.com>
 186
 187         * config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
 188         (movdf_vfp): Ditto.
 189
 190 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
 191
 192         PR tree-optimization/26859
 193         * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
 194         division by zero.
 195         (convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
 196         for the step after fold_convert.
 197
 198 2006-03-29  Paul Brook  <paul@codesourcery.com>
 199
 200         * reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
 201         (inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.
 202
 203 2006-03-29  Paul Brook  <paul@codesourcery.com>
 204
 205         PR middle-end/23623
 206         * targhooks.c (default_narrow_bitfield): New fuction.
 207         * targhooks.h (default_narrow_bitfield): add prototype.
 208         * target.h (gcc_target): Add narrow_volatile_bitfield.
 209         * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
 210         * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
 211         * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
 212         * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.
 213
 214 2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>
 215
 216         * config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
 217         tmake_file.
 218         * config/s390/s390.c (S390_scalar_mode_supported_p): New function.
 219         (NR_C_MODES): Add TDmode, DDmode and SDmode.
 220         (s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
 221         (s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
 222         (s390_function_arg_float): Allow SDmode and DDmode values to be
 223         passed in floating point registers.
 224         (s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
 225         check with SCALAR_FLOAT_MODE_P.
 226         (TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.
 227
 228 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
 229
 230         PR tree-optimization/25985
 231         * tree-ssa-loop-niter.c (number_of_iterations_le,
 232         number_of_iterations_ne): Make comments more precise.
 233         (number_of_iterations_cond): Add only_exit argument.  Use the
 234         fact that signed variables do not overflow only when only_exit
 235         is true.
 236         (loop_only_exit_p): New.
 237         (number_of_iterations_exit): Pass result of loop_only_exit_p to
 238         number_of_iterations_cond.
 239
 240 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
 241
 242         PR tree-optimization/26643
 243         * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
 244         bit_field_refs.
 245
 246 2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>
 247
 248         * config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
 249         (divsi3_i4_int): Likewise.
 250
 251 2006-03-28  Roger Sayle   <roger@eyesopen.com>
 252
 253         * expr.c (emit_group_store): Only create a new pseudo reg if the
 254         quantity it needs to hold isn't already a suitable pseudo.
 255
 256 2006-03-28  Jeff Law  <law@redhat.com>
 257
 258         * timevar.def (TV_TREE_PHI_CPROP): New timevar.
 259         * tree-ssa-dom.c (pass_phi_only_cprop): Use it.
 260
 261 2006-03-28  Roger Sayle  <roger@eyesopen.com>
 262
 263         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
 264         the equivalent ~X & Y, and the symmetry related transformations.
 265         (fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
 266         ~X & Y, and symmetry related transforms.
 267
 268 2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
 269
 270         Revert my 2006-03-27 patches.
 271
 272 2006-03-28  Roger Sayle  <roger@eyesopen.com>
 273
 274         * fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
 275         ~(T1)X, when T1 and T2 are integer types of the same precision
 276         and (T2)X isn't an extension.
 277
 278 2006-03-28  Jeff Law  <law@redhat.com>
 279
 280         PR tree-optimization/26796
 281         * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
 282         need EH edge cleanups rather than purging them immediately.
 283         (eliminate_degenerate_phis): Handle queued EH cleanups.
 284
 285 2006-03-28  Daniel Berlin  <dberlin@dberlin.org>
 286
 287         * tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
 288         from parent_var.
 289
 290 2006-03-27  Roger Sayle  <roger@eyesopen.com>
 291
 292         PR middle-end/22524
 293         * fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
 294         cast BIT_NOT_EXPR operand to the correct type.
 295
 296 2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>
 297
 298         * tree-loop-linear.c: Don't include varray.h.
 299         (gather_interchange_stats, try_interchange_loops,
 300         linear_transform_loops): Use VEC instead of VARRAY.
 301         * lambda-mat.c: Don't include varray.h.
 302         * tree-chrec.c: Same.
 303         * lambda-trans.c: Same.
 304         * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
 305         VEC instead of VARRAY.
 306         * tree-vectorizer.h: Idem.
 307         * tree-data-ref.c (dump_data_references,
 308         dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
 309         initialize_data_dependence_relation, finalize_ddr_dependent,
 310         compute_all_dependences, find_data_references_in_loop,
 311         compute_data_dependences_for_loop, analyze_all_data_dependences,
 312         free_dependence_relation, free_dependence_relations,
 313         free_data_refs): Idem.
 314         * tree-data-ref.h (data_reference_p, subscript_p): New.
 315         (data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
 316         VEC instead of VARRAY.
 317         (DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
 318         (find_data_references_in_loop, compute_data_dependences_for_loop,
 319         dump_ddrs, dump_dist_dir_vectors, dump_data_references,
 320         dump_data_dependence_relations, free_dependence_relations,
 321         free_data_refs): Adjust declaration.
 322         (lambda_transform_legal_p): Move declaration here...
 323         * tree-vect-analyze.c (vect_analyze_data_ref_dependences,
 324         vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
 325         vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
 326         vect_analyze_data_refs): Use VEC instead of VARRAY.
 327         * lambda.h (lambda_transform_legal_p): ...from here.
 328         * lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
 329         * tree-vect-transform.c (vect_update_inits_of_drs): Idem.
 330         * Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
 331         tree-chrec.o): Don't depend on VARRAY_H.
 332
 333 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
 334
 335         * rtl.def (Copyright): Update date.
 336         (DEPS_LIST): Change type of the second operand to 'int'.
 337         * target.h (Copyright): Update date.
 338         (struct gcc_target.speculate_insn): Change type of the second parameter
 339         to 'int'.
 340         * lists.c (Copyright): Update date.
 341         (alloc_DEPS_LIST): Change signature.  Update reference to the second
 342         operand of the DEPS_LIST.
 343         (copy_DEPS_LIST_list): Update reference to the second operand of the
 344         DEPS_LIST.
 345         * rtl.h (Copyright): Update date.
 346         (alloc_DEPS_LIST): Update signature.
 347         * sched-int.h (Copyright): Update date.
 348         (ds_t): Change typedef to 'int'.
 349         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
 350
 351 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
 352
 353         * haifa-sched.c (Copyright): Update date.
 354         (try_ready): Change condition to restore non-speculative pattern
 355         of the instruction.
 356         (process_insn_depend_be_in_spec): Code to keep probability of the
 357         speculative dependence non-decreasing.
 358
 359 2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>
 360
 361         * regrename.c (replace_oldest_value_addr): Initialize a variable to
 362         shut up the compiler.
 363
 364 2006-03-27  J"orn Rennecke <joern.rennecke@st.com>
 365
 366         * config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
 367         to use lib prefix for target.
 368         ($(T)libic_invalidate_array_4-200.a): Likewise.
 369         ($(T)libic_invalidate_array_4a.a): Likewise.
 370
 371 2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
 372             J"orn Rennecke <joern.rennecke@st.com>
 373
 374         * superh.opt: New file.
 375         * sh.c (boardtype, osruntime): Remove.
 376         * superh.h (SUBTARGET_OPTIONS): Remove.
 377         * config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.
 378
 379         * config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
 380         arguments with ^ and/or [].
 381
 382         * config.gcc (sh-*-*): Add quoting to account for quirk of
 383         Solaris /bin/sh.
 384         Replace == with = in enable_incomplete_targets test.
 385
 386         * config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
 387         with MASK_LITTLE_ENDIAN.
 388
 389         * config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
 390         * config/sh/sh.opt: Added to some comments.
 391         * config/sh/superh.h: Removed some chaff.
 392
 393         * config/sh/sh.opt: Add m4-[1234]00* options.
 394         * config/sh/sh.c (sh_handle_option): Likewise.
 395         * config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
 396         (ic_invalidate_array_4-100.o): New rule.
 397         ($(T)libic_invalidate_array_4-100.a): Likewise.
 398         (ic_invalidate_array_4-200.o): Likewise.
 399         ($(T)libic_invalidate_array_4-200.a): Likewise.
 400         (ic_invalidate_array_4a.o): Likewise.
 401         ($(T)libic_invalidate_array_4a.a): Likewise.
 402         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
 403         * config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
 404         m4-200*, and m4a*.
 405         * config/sh/crt1.asm: Merged in profiling code.
 406         * config/sh/superh.h (STARTFILE_SPEC): Override.
 407         * config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
 408         Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
 409         * config.gcc (sh*-superh-elf): Add t-superh to tmake_file.
 410
 411         * t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
 412         * config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
 413         MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.
 414
 415         * sh.opt (mpretend-cmove): New option.
 416         * sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
 417         * sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
 418         (movsicc): Add TARGET_PRETEND_CMOVE code.
 419
 420 2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>
 421
 422         * config/s390/s390-protos.h (s390_hard_regno_mode_ok,
 423         s390_class_max_nregs): New function prototypes.
 424         * config/s390/s390.c (REGNO_PAIR_OK): New macro.
 425         (s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
 426         * config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
 427         CLASS_MAX_NREGS): Macro bodies replaced by function calls.
 428
 429 2006-03-26  Geoffrey Keating  <geoffk@apple.com>
 430
 431         * dwarf2out.c (add_location_or_const_value_attribute): Call
 432         tree_add_const_value_attribute if nothing else works.
 433         (reference_to_unused): New.
 434         (rtl_for_decl_init): Use reference_to_unused to decide whether
 435         to output an initializer.
 436
 437 2006-03-27  Alan Modra  <amodra@bigpond.net.au>
 438
 439         PR target/26459
 440         * config/rs6000/rs6000.md (DF reg move peephole): Prevent
 441         peephole removing spe frob_di_df_2.
 442
 443 2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>
 444
 445         * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
 446         (subscript_dependence_tester_1): Declared.
 447         (print_dir_vectors, print_dist_vectors): New.
 448         (debug_data_dependence_relation): New.
 449         (dump_data_dependence_relation): Print more details.
 450         (initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
 451         (analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
 452         (save_dist_v, save_dir_v, add_outer_distances,
 453         build_classic_dist_vector_1): New.
 454         (build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
 455         Don't test for lambda_vector_lexico_pos.
 456         (same_access_functions, add_multivariate_self_dist,
 457         add_other_self_distances, dir_from_dist): New.
 458         (build_classic_dir_vector): Replace implementation almost identical to
 459         build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
 460         dir_from_dist.
 461         (subscript_dependence_tester_1): New.
 462         (subscript_dependence_tester): Handle the lexicographically negative
 463         distance vectors by recomputing the dependence relation.
 464         (compute_affine_dependence): Remove parameter loop_nest_depth.
 465         (compute_self_dependence): Don't call compute_subscript_distance.
 466         (compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
 467         Add a parameter for the loop_nest.
 468         (find_loop_nest_1, find_loop_nest): New.
 469         (compute_data_dependences_for_loop): Compute the loop nest, and give
 470         up if the nest is not well formed.
 471         * tree-data-ref.h (loop_p): New.
 472         (struct data_dependence_relation): Replace size_vect field with
 473         loop_nest, a vec of loops.
 474         (DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
 475         (DDR_LOOP_NEST): New.
 476         (print_dir_vectors, print_dist_vectors,
 477         debug_data_dependence_relation): Declared.
 478         (index_in_loop_nest): New.
 479         * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
 480         DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
 481         distance.
 482
 483 2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>
 484
 485         * simplify-rtx.c (simplify_relational_operation): Call
 486         simplify_relational_operation_1 even if mode is VOIDmode.
 487
 488 2006-03-25  Daniel Berlin  <dberlin@dberlin.org>
 489
 490         PR tree-optimization/26804
 491         * tree.h (DECL_CALL_CLOBBERED): New macro.
 492         (tree_decl_common): Add call_clobbered_flag.
 493         * tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
 494         (mark_call_clobbered): Set DECL_CALL_CLOBBERED.
 495         (clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
 496         (mark_non_addressable): Ditto.
 497         * tree-ssa.c (verify_call_clobbered): New function.
 498         (verify_alias_info): Use it.
 499         * tree-pass.h (pass_reset_cc_flags): New prototype.
 500         * tree-ssa-alias.c (pass_reset_cc_flags): New structure.
 501         (reset_cc_flags): New function.
 502         * passes.c (init_optimization_passes): Call reset_cc_flags after
 503         initializing referenced_vars.
 504
 505 2006-03-25  Uros Bizjak  <uros@kss-loka.si>
 506             Roger Sayle  <roger@eyesopen.com>
 507
 508         PR middle-end/26717
 509         * fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
 510         to 1.0 for non-real operands. Implement A / A optimization for
 511         complex operands.
 512
 513 2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>
 514
 515         * config/i386/i386.c (size_cost): Correct the comment for
 516         cost of storing fp registers.
 517         (i386_cost): Likewise.
 518         (i486_cost): Likewise.
 519         (pentium_cost): Likewise.
 520         (pentiumpro_cost): Likewise.
 521         (k6_cost): Likewise.
 522         (athlon_cost): Likewise.
 523         (k8_cost): Likewise.
 524         (pentium4_cost): Likewise.
 525         (nocona_cost): Likewise.
 526         (generic64_cost): Likewise.
 527         (generic32_cost): Likewise.
 528
 529 2006-03-24  Denis Chertykov  <denisc@overta.ru>
 530
 531         * config/avr/avr-protos.h (extra_constraint): Delete.
 532         (extra_constraint_Q): New declaration.
 533         * config/avr/constraints.md: New file.
 534         * config/avr/avr.md: Include it.
 535         (REG_X, REG_Y, REG_Z, REG_W): New constants.
 536         (TMP_REGNO, ZERO_REGNO): Likewise.
 537         (UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
 538         * config/avr/avr.c (avr_reg_class_from_letter): Delete.
 539         (extra_constraint): Delete.
 540         (extra_constraint_Q): Test for memory constraint 'Q'.
 541         * config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
 542         (REG_CLASS_FROM_LETTER): Delete.
 543         (CONST_OK_FOR_LETTER_P): Delete.
 544         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
 545         (EXTRA_CONSTRAINT): Delete.
 546         (TMP_REGNO): Delete.
 547         (ZERO_REGNO): Delete.
 548
 549 2006-03-24  Jeff Law  <law@redhat.com>
 550
 551         * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
 552         directly.  Call mark_new_vars_to_rename slightly earlier.
 553
 554 2006-03-24  Geoffrey Keating  <geoffk@apple.com>
 555
 556         * dwarf2out.c (is_c_family): Understand new DWARF3 language types.
 557         (is_cxx): Likewise.
 558         (gen_compile_unit_die): Use new language types for Objective-C and
 559         Objective-C++.
 560         (dwarf2out_decl): Use is_cxx rather than testing explicitly against
 561         DW_LANG_C_plus_plus.
 562
 563         PR 26793
 564         * config/t-darwin (crt3.o): Work around bug 26840.
 565         * config/darwin-crt3.c: Rewrite.
 566         * config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.
 567
 568 2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>
 569
 570         * doc/invoke.texi: Document -femit-class-debug-always
 571         * common.opt: Add -femit-class-debug-always.
 572
 573 2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>
 574
 575         * config/s390/s390.c (s390_decompose_address): Allow SImode for
 576         index and base register.
 577         (s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
 578         print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
 579         with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
 580         REGNO_OK_FOR_INDEX_P.
 581         * config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
 582         ADDR_REGNO_P.
 583         (REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
 584         REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
 585         REG_OK_FOR_BASE_P): Definitions removed.
 586
 587 2006-03-24  Jakub Jelinek  <jakub@redhat.com>
 588
 589         PR middle-end/26611
 590         * gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
 591         non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
 592         set yet or weren't marked as local yet.
 593
 594 2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>
 595
 596         * regrename.c (scan_rtx_address): Initialize a variable to shut up
 597         the compiler.
 598
 599 2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>
 600
 601         * config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
 602         (rs6000_legitimate_small_data_p): Delete.
 603         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
 604         (rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
 605         and make static.  Add forward declaration.  Update uses.
 606         (rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
 607         of offsettable_memref_p.
 608         * config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
 609         Use rs6000_offsettable_memref_p instead of a less accurate predicate.
 610
 611 2006-03-24  Jeff Law  <law@redhat.com>
 612
 613         * tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
 614         around bug in immediate-use iterator.
 615
 616 2006-03-24  Alan Modra  <amodra@bigpond.net.au>
 617
 618         PR target/26607
 619         * config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
 620         or __LITTLE_ENDIAN__.
 621
 622 2006-03-23  J"orn Rennecke <joern.rennecke@st.com>
 623
 624         * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
 625         * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
 626         * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
 627         * config/sh/sh.opt (mdiv=): Amend description.
 628         * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
 629         (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
 630         (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
 631         SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
 632         (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
 633         Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
 634         * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
 635         (udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
 636         TARGET_DIVIDE_CALL_FP.
 637
 638 2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
 639
 640         * haifa-sched.c (choose_ready): Fix type of the local variable.
 641         Move local variables.  Add comment.
 642         (check_reg_live): Change signature.  Make callable from debugger.
 643         * sched-int.h (check_reg_live): Update signature.
 644         * sched-ebb.c (check_reg_live): Update parameters.
 645         * sched-rgn.c (check_reg_live): Ditto.
 646         (region_head_or_leaf_p): Check pointer before dereferencing.
 647         * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
 648         before reload on optimization levels below 1.
 649
 650 2006-03-23  Richard Henderson  <rth@redhat.com>
 651
 652         * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
 653         tls symbols.
 654
 655         PR target/26347
 656         * config/alpha/predicates.md (local_symbolic_operand): Reject
 657         weak symbols.
 658
 659 2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>
 660
 661         PR tree-opt/26795
 662         * tree-ssa-pre.c (create_value_expr_from): Don't reject
 663         expressions which have overflowed constants.
 664
 665 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
 666
 667         * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.
 668
 669 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
 670
 671         * cfgloopmanip.c (create_loop_notes): Removed.
 672         * final.c (final_scan_insn): Do not handle loop notes.
 673         * jump.c (squeeze_notes): Ditto.
 674         * cfglayout.c (skip_insns_after_block,
 675         duplicate_insn_chain): Ditto.
 676         * cfgcleanup.c (rest_of_handle_jump2): Do not call
 677         create_loop_notes.
 678         * cfgloop.h (create_loop_notes): Declaration removed.
 679
 680 2006-03-23  Richard Sandiford  <richard@codesourcery.com>
 681
 682         * varasm.c (output_constant_pool): Restore fnname and fndecl
 683         arguments.
 684         (assemble_start_function): Adjust call accordingly.
 685         (assemble_end_function): Likewise.
 686
 687 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 688
 689         PR mudflap/26790
 690         * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.
 691
 692         PR mudflap/26789
 693         * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.
 694
 695 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 696
 697         PR driver/22600
 698         * system.h (ICE_EXIT_CODE): New macro.
 699         * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
 700         (diagnostic_action_after_output): Likewise.
 701         * gcc.c (fatal_ice): New function.
 702         (execute): Use it instead of fatal.
 703         (fancy_abort): Likewise.
 704         * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.
 705
 706 2006-03-22  Jeff Law  <law@redhat.com>
 707
 708         * loop-unroll.c (analyze_iv_to_split_insn): Handle
 709         iv_analyze_result returning false.
 710
 711 2006-03-22  Jie Zhang  <jie.zhang@analog.com>
 712
 713         * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.
 714
 715 2006-03-22  Richard Henderson  <rth@redhat.com>
 716
 717         PR middle-end/26084
 718         * except.c (duplicate_eh_regions_0): New.
 719         (duplicate_eh_region_1): Duplicate the children of the node as
 720         well as the node itself.  Link them up properly.
 721         (duplicate_eh_region_2): Merge into ...
 722         (duplicate_eh_regions): ... here.  Take copy_region argument, and
 723         copy only a sub-tree if asked.  Simplify copying and fixup.
 724         (eh_region_outer_p): New.
 725         * except.h (duplicate_eh_regions): Update decl.
 726         (eh_region_outer_p): Declare.
 727         * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
 728         (lower_omp_master): Likewise.
 729         (lower_omp_ordered): Likewise.
 730         * tree-cfg.c (struct move_stmt_d): Add new_label_map.
 731         (move_stmt_r): Use it to remap labels.  Handle recursion vs
 732         remap_decls_p properly.
 733         (move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
 734         (find_outermost_region_in_block): New.
 735         (new_label_mapper): New.
 736         (move_sese_region_to_fn): Copy eh information to the new function
 737         properly.
 738         * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
 739         argument.
 740         * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
 741         number.
 742
 743 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
 744
 745         * doc/md.texi (-mshared): Mention that -mshared code can be linked
 746         into shared libraries.
 747
 748 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
 749
 750         * doc/md.texi: Refer to i386/constraints.md instead of
 751         i386/predicates.md.
 752         * config/i386/constraints.md: New file, extracted from...
 753         * config/i386/predicates.md: ...here.
 754         * config/i386/i386.md: Include constraints.md.
 755
 756 2006-03-21  Jason Merrill  <jason@redhat.com>
 757
 758         * builtins.c (expand_builtin_fork_or_exec): Fix pasto.
 759
 760         PR middle-end/20297
 761         * expr.c (init_block_move_fn): Force default visibility.
 762         (init_block_clear_fn): Likewise.
 763         * builtins.c (expand_builtin_fork_or_exec): Likewise.
 764         * targhooks.c (default_external_stack_protect_fail): Likewise.
 765
 766 2006-03-21  Richard Sandiford  <richard@codesourcery.com>
 767
 768         * config/mips/predicates.md (const_call_insn_operand): Allow direct
 769         calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
 770         * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
 771         Use TARGET_OLDABI instead of !TARGET_NEWABI.
 772         (loadgp): Use mips_current_loadgp_style.
 773         (loadgp_noshared): New pattern.
 774         (sibcall_internal): Use MIPS_CALL.
 775         (sibcall_value_internal): Likewise.
 776         (sibcall_value_multiple_internal): Likewise.
 777         (call_internal): Likewise.
 778         (call_value_internal): Likewise.
 779         (call_value_multiple_internal): Likewise.
 780         (call_split): Use MIPS_CALL and add an 'S' constraint.
 781         (call_value_split): Likewise.
 782         (call_value_multiple_split): Likewise.
 783         * config/mips/mips.opt (-mabicalls): Tweak docstring.
 784         (-mshared): New option.
 785         * config/mips/mips-protos.h (mips_loadgp_style): New enum.
 786         (mips_current_loadgp_style): Declare.
 787         * config/mips/mips.c (mips_classify_symbol): Avoid using
 788         SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
 789         rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
 790         TARGET_ABSOLUTE_ABICALLS.
 791         (override_options): Adjust comments.  Improve the warning that is
 792         issued when -mabicalls and -G are used together.
 793         (mips_file_start): Remove comment.
 794         (mips_current_loadgp_style): New function.
 795         (mips_gnu_local_gp): New variable.
 796         (mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
 797         LOADGP_ABSOLUTE.
 798         (mips_output_function_prologue): Use mips_current_laodgp_style.
 799         (mips_expand_prologue): Call mips_emit_loadgp before emitting
 800         the cprestore instruction.
 801         (mips_extra_live_on_entry): Fix reversed test.  Don't make $25
 802         live for TARGET_ABSOLUTE_ABICALLS.
 803         * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
 804         (ASM_SPEC): Pass down -mshared and -mno-shared.
 805         (MIPS_CALL): New macro.
 806         * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
 807         definition.
 808         * doc/invoke.texi (-mabicalls): Update documentation.
 809         (-mshared): Document.
 810
 811 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
 812
 813         * config/ia64/unwind-hpux.c: New file.
 814         * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.
 815
 816 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
 817
 818         PR libgomp/26384
 819         * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.
 820
 821 2006-03-21  Jeff Law  <law@redhat.com>
 822
 823         * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
 824         type conversions of a VR_VARYING source to a wider type.
 825
 826 2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>
 827
 828         * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
 829         tm_file on Solaris 10 and later.
 830         (sparc64-*-solaris2*): Likewise.
 831         (sparc-*-solaris2*): Likewise.
 832         * config/sol26.h: Rename to config/sol2-6.h.
 833         * config/sol2-10.h: New file.
 834
 835 2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>
 836
 837         PR tree-opt/26781
 838         * tree-ssa-pre.c (create_component_ref_by_pieces):
 839         Handle STRING_CST.
 840
 841 2006-03-21  Jakub Jelinek  <jakub@redhat.com>
 842
 843         PR c++/26690
 844         * tree.c (get_callee_fndecl): If CALL is error_mark_node,
 845         return it immediately.
 846
 847 2006-03-21  Michael Matz  <matz@suse.de>
 848
 849         * genautomata.c (<struct state>, num_out_arcs, presence_signature):
 850         New members.
 851         (remove_arc, add_arc): Update num_out_arcs member.
 852         (set_out_arc_insns_equiv_num): Returns nothing instead of number
 853         of out arcs.
 854         (cache_presence): New function.
 855         (compare_states_for_equiv): New function.
 856         (state_is_differed): Don't take number of outargs, adjust callers.
 857         Use new invariant for speeding up.
 858         (init_equiv_class): Create initial classes based on sorted
 859         input.
 860         (partition_equiv_class): Don't track out_arcs_num.
 861         (evaluate_equiv_classes): Call cache_presence on all states and
 862         sort them.
 863
 864 2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>
 865
 866         * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
 867         * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
 868         (bfin_valid_reg_p): Test for pseudos explicitly and use only
 869         REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
 870         callers changed.
 871         * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
 872         (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
 873         (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
 874         (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
 875         REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
 876         macros.
 877         (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
 878         REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
 879         (REGNO_REG_CLASS): ARGP is in PREGS.
 880         * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
 881         IREGS.
 882         (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
 883         to deal with those addresses.
 884         * addresses.h: New file.
 885         * caller-save.c: Include "addresses.h".
 886         (init_caller_save): Use new base_reg_class function.
 887         * rtl-factoring.c: Include "addresses.h".
 888         (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
 889         * recog.c: Include "addresses.h".
 890         (preprocess_constraints): Use new base_reg_class function.
 891         * regrename.c: Include "addresses.h".
 892         (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
 893         functions.  Keep track of a new var INDEX_CODE to compute valid
 894         classes.
 895         (replace_oldest_value_addr): Likewise.
 896         (replace_oldest_value_mem): Use base_reg_class.
 897         * reload.c: Include "addresses.h".
 898         (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
 899         (find_reloads): Use new base_reg_class function.
 900         (find_reloads_address): Likewise; also use regno_ok_for_base_p.
 901         (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
 902         all callers and prototype changed.
 903         * reload1.c: Include "addresses.h".
 904         (maybe_fix_stack_asms): Use base_reg_class.
 905         * regclass.c: Include "addresses.h".
 906         (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
 907         (init_reg_autoinc): Use new base_reg_class function.
 908         (record_reg_classes): Likewise.
 909         (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
 910         OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
 911         Use new args to compute necessary class.
 912
 913         * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
 914         regrename.o, rtl-factoring.o): Update dependencies.
 915         * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
 916         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
 917         (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
 918         REG_OK_FOR_INDEX_P): Delete documentation.
 919
 920 2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>
 921
 922         * config.gcc (sparc-*-solaris2*): Change the default CPU setting
 923         from V7 to V9 for Solaris 7 and above.
 924
 925 2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>
 926
 927         * doc/invoke.texi: Document new flag -fargument-noalias-anything.
 928         * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
 929         argument pointers may not alias any other storage.
 930         * common.opt: Define option -fargument-noalias-anything.
 931         * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
 932         alias semantics is specified by flag_argument_noalias > 2.
 933
 934 2006-03-20  Jeff Law  <law@redhat.com>
 935
 936         * tree-pass.h (pass_phi_only_copy_prop): Delete.
 937         (pass_phi_only_cprop): Declare.
 938         * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
 939         with phi_only_cprop
 940         * tree-ssa-dom.c (degenerate_phi_result): New function.
 941         (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
 942         (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
 943         (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
 944         (eliminate_degenerate_phis): Likewise.
 945         (pass_phi_only_cprop): New pass descriptor.
 946         * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
 947         support code.  Callers updated.
 948         (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
 949         (store_copy_prop): Likewise.
 950         (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.
 951
 952 2006-03-20  Jason Merrill  <jason@redhat.com>
 953
 954         PR c++/21764
 955         * c-pragma.c (visstack): Move out of handle_pragma_visibility.
 956         (push_visibility, pop_visibility): Likewise.
 957         * c-pragma.h: Declare them.
 958
 959 2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>
 960
 961         * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.
 962
 963         * config/sh/sh.c (find_regmode_weight): Change the type of the first
 964         parameter and use get_ebb_head_tail.
 965         (sh_md_init_global): Adjust uses of find_regmode_weight.
 966
 967 2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>
 968
 969         * function.h (struct function) <x_tail_recursion_reentry>:
 970         Rename to x_stack_check_probe_note.
 971         (tail_recursion_reentry): Rename to stack_check_probe_note.
 972         * function.c: Replace tail_recursion_reentry with
 973         stack_check_probe_note everywhere.
 974         (expand_function_start): Only emit a note for
 975         stack_check_probe_note with -fstack-protect.
 976         * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.
 977
 978         * emit-rtl.c (remove_unnecessary_notes): Remove.
 979         (pass_remove_unnecessary_notes): Remove.
 980         * rtl.h (remove_unnecessary_notes): Remove prototype.
 981         * final.c (final_start_function): Don't call remove_unnecessary_notes.
 982         * tree-pass.h (pass_remove_unnecessary_notes): Remove.
 983         * passes.c (pass_remove_unnecessary_notes): Don't run it.
 984
 985 2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>
 986
 987         PR tree-opt/26629
 988         * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
 989         (valid_in_set): Handle ARRAY_REF.
 990         Change "if min_variant or VH" to asserts.
 991         (create_component_ref_by_pieces): Handle ARRAY_REF.
 992         (create_expression_by_pieces): Likewise.
 993         (can_PRE_operation): ARRAY_REFs can now be PRE'd.
 994
 995 2006-03-20  David Edelsohn  <edelsohn@gnu.org>
 996
 997         * genpreds.c (write_insn_extra_address_constraint): Argument `c'
 998         is operand of switch, not str[0].
 999
1000 2006-03-20  Alan Modra  <amodra@bigpond.net.au>
1001
1002         * config/rs6000/rs6000.c (rs6000_handle_option): Use
1003         TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.
1004
1005 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
1006
1007         * genpreds.c (write_tm_preds_h): Add semicolon and newline at
1008         end of insn_extra_address_constraint declaration.
1009
1010 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
1011
1012         * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
1013         (no-sum-in-toc): Same.
1014         * config/rs6000/rs6000.c (rs6000_handle_option): Use new
1015         variables.
1016         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
1017         NO_FP_IN_TOC for -fPIC instead of mask.
1018
1019         * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
1020         (BOOT_LDFLAGS): Delete.
1021         (LDFLAGS): Delete.
1022         * config/rs6000/t-aix52: Same.
1023
1024         * config/rs6000/rs6000.md (store_multiple_power): Delete.
1025         (stmsi[345678]_power): New.
1026
1027 2006-03-17  Steve Ellcey  <sje@cup.hp.com>
1028
1029         * config/ia64/ia64.opt: Add empty line to end of file.
1030
1031 2006-03-17  Richard Guenther  <rguenther@suse.de>
1032
1033         PR middle-end/26721
1034         * builtins.c (get_pointer_alignment): For component style references
1035         adjust alignment to the component type alignment.  Make sure
1036         to adjust alignment for component access of constants.
1037
1038 2006-03-17  David Edelsohn  <edelsohn@gnu.org>
1039
1040         * config/rs6000/rs6000.md (strlensi): Emit barrier after
1041         unconditional jump.
1042
1043 2006-03-17  Paul Brook  <paul@codesourcery.com>
1044
1045         * doc/install.texi: Docuemnt --with-mode.
1046         * config.gcc: Add --with-mode for arm*-*-*.
1047         * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".
1048
1049 2006-03-17  J"orn Rennecke <joern.rennecke@st.com>
1050
1051         * sh.c (max_labelno_before_reorg): New variable.
1052         (sh_reorg): Initialize it.
1053         (find_barrier): Check max_labelno_before_reorg before using
1054         label_to_alignment.  Take length of explicit alignment insns
1055         into account.  When seeing a UNSPECV_CONST_END, return it.
1056
1057         * sh.c (fixup_mova): Set mode of affected label to QImode.
1058         (untangle_mova): New function.
1059         (find_barrier): Use it.  Check mode of label before decrementing
1060         num_mova.
1061         (sh_reorg): Likewise.
1062         Set mode of all insns back to VOIDmode.
1063
1064         * sh.c (MOVA_LABELREF): New macro.
1065         (mova_p, fixup_mova, sh_reorg): Use it.
1066         (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
1067         ADDR_DIFF_VEC matches mova.
1068
1069 2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>
1070
1071         * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
1072         with ATTRIBUTE_UNUSED.
1073
1074 2006-03-17  Alexandre Oliva  <aoliva@redhat.com>
1075
1076         * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
1077         pointer, instead of assuming it is possible to derive the
1078         correct args size from a call insn.
1079
1080 2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
1081
1082         * rtl.h (CONST_INT_P): Define.
1083         * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
1084         instead of GET_CODE(x) == CONST_INT.
1085         (vax_rtx_costs): Likewise.
1086         (vax_output_int_move): Likewise.
1087         (vax_output_int_add): Likewise.
1088         (legitimate_constant_address_p): Likewise.
1089         (index_term_p): Likewise.
1090         * config/vax/vax.h (PRINT_OPERAND): Likewise.
1091         * config/vax/vax.md (and<mode>3): Likewise.
1092         (ashrsi3): Likewise.
1093         (extv): Likewise.
1094         (movstricthi): Likewise.
1095         (movstrictqi): Likewise.
1096         (rotrsi3): Likewise.
1097         (five unnamed insns): Likewise.
1098
1099 2006-03-16  Geoffrey Keating  <geoffk@apple.com>
1100
1101         * doc/tm.texi (SDB and DWARF): Add extra parameter to
1102         ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
1103         * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
1104         * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
1105         Pass to ASM_OUTPUT_DWARF_OFFSET.
1106         * dwarf2out.c (debug_frame_section): New.
1107         (output_call_frame_info): Use debug_frame_section.  Pass it to
1108         dw2_asm_output_offset.
1109         (output_die): Pass appropriate section to dw2_asm_output_offset.
1110         (output_compilation_unit_header): Likewise.
1111         (output_pubnames): Likewise.
1112         (output_aranges): Likewise.
1113         (enum dw_val_class): Break dw_val_class_lbl_offset into
1114         dw_val_class_lineptr and dw_val_class_macptr.
1115         (add_AT_lbl_offset): Delete.
1116         (add_AT_lineptr): New.
1117         (add_AT_macptr): New.
1118         (AT_lbl): Expect a lineptr or macptr.
1119         (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
1120         (attr_checksum): Likewise.
1121         (same_dw_val_p): Likewise.
1122         (size_of_die): Likewise.
1123         (value_format): Likewise.
1124         (output_die): Likewise.
1125         (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
1126         add_AT_lbl_offset.
1127         * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
1128         * config/i386/i386.c (x86_file_start): Call darwin_file_start.
1129         * config/darwin-protos.h (darwin_file_start): New.
1130         (darwin_asm_output_dwarf_offset): New.
1131         * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
1132         * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
1133         darwin_file_start.
1134         * config/darwin.c (darwin_emit_unwind_label): Don't output label
1135         if not EH section; simplify.
1136         (darwin_file_start): New.
1137         (darwin_asm_output_dwarf_offset): New.
1138         * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
1139         mark as 'debug'.
1140         (DEBUG_INFO_SECTION): Likewise.
1141         (DEBUG_ABBREV_SECTION): Likewise.
1142         (DEBUG_ARANGES_SECTION): Likewise.
1143         (DEBUG_MACINFO_SECTION): Likewise.
1144         (DEBUG_LINE_SECTION): Likewise.
1145         (DEBUG_LOC_SECTION): Likewise.
1146         (DEBUG_PUBNAMES_SECTION): Likewise.
1147         (DEBUG_STR_SECTION): Likewise.
1148         (DEBUG_RANGES_SECTION): Likewise.
1149         (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
1150         (ASM_OUTPUT_DWARF_OFFSET): New.
1151
1152 2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>
1153
1154         * config.gcc (tm_defines): Always add to previous value rather
1155         than replacing it.
1156
1157 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
1158
1159         * config/mips/predicates.md (splittable_const_int_operand): New,
1160         split from move_operand.
1161         (splittable_symbolic_operand): New.
1162         (move_operand): Add commentary.  Use splittable_const_int_operand.
1163         Inline mips_atomic_symbolic_constant_p.
1164         * config/mips/mips.md: Add combine splitters for handling moves
1165         of splittable_const_int_operands and splittable_symbolic_operands.
1166         * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
1167         (mips_split_symbol): Declare.
1168         (mips_move_integer): Declare.
1169         * config/mips/mips.c (mips_split_p): Make global.
1170         (TARGET_MIN_ANCHOR_OFFSET): Override default.
1171         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1172         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1173         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
1174         (mips_offset_within_object_p): Handle block symbols.
1175         (mips_atomic_symbolic_constant_p): Delete.
1176         (mips_cannot_force_const_mem): Return false for constants that
1177         mips_legitimize_move can handle.
1178         (mips_use_blocks_for_constant_p): New function.
1179         (mips_split_symbol): Make global.
1180         (mips_move_integer): Likewise.  Add a temporary register argument.
1181         (mips_legitimize_const_move): Use splittable_const_int_operand and
1182         splittable_symbolic_operand.
1183         (mips_use_anchors_for_symbol_p): New function.
1184         * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
1185         (mips_split_p): Declare.
1186
1187 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
1188
1189         * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
1190         (mips*-*-linux*): Likewise.
1191
1192 2006-03-16  Roger Sayle  <roger@eyesopen.com>
1193             Daniel Speyer  <dspeyer@wam.umd.edu>
1194
1195         PR middle-end/18259
1196         * tree-dump.c (dump_real): New function.
1197         (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
1198         * Makefile.in (REAL_H): New macro for dependencies on real.h.
1199         (tree-dump.o): Add $(REAL_H) to the dependencies.
1200
1201 2006-03-16  Roger Sayle  <roger@eyesopen.com>
1202
1203         PR middle-end/21781
1204         * real.c (real_from_string): If the mantissa is zero, don't bother
1205         parsing the exponent as the result should always be zero.
1206
1207 2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>
1208
1209         * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.
1210
1211 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1212
1213         * config/ia64/ia64.c (stops_p): Added explicit initialization.
1214         (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
1215         ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
1216         ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
1217         ia64_sched_finish_global): New static functions to implement
1218         hooks from gcc_target.sched.
1219         (spec_check_no, max_uid, pending_data_specs): New static variables.
1220         (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
1221         ia64_spec_check_src_p): New static functions.
1222         (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
1223         (TARGET_SCHED_ADJUST_COST): Removed.
1224         (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
1225         TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
1226         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
1227         TARGET_SCHED_GEN_CHECK,
1228         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
1229         TARGET_SCHED_SET_SCHED_FLAGS): New macros.
1230         (update_set_flags, group_barrier_needed, set_src_needs_barrier):
1231         Fixed to handle speculation checks.
1232         (rtx_needs_barrier): Fixed to handle speculative loads and
1233         their checks.
1234         (ia64_variable_issue): Added code to count speculative loads and their
1235         checks.
1236         (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
1237         speculative loads.
1238         (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
1239         New enumerations.
1240         (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
1241         New constants.
1242         (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
1243         (ia64_reorg): Reset stops_p to NULL after it is freed.
1244         * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
1245         UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
1246         (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
1247         chk_a.
1248         (data_speculative, control_speculative, check_load): New attributes.
1249         (mov<mode>_advanced, mov<mode>_speculative,
1250         mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
1251         zero_extend<mode>di2_speculative,
1252         zero_extend<mode>di2_speculative_advanced): New patterns for
1253         data and control speculative loads.
1254         (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
1255         check loads.
1256         (advanced_load_check_clr_<mode>, speculation_check_<mode>):
1257         New pattern for data and control speculation checks.
1258         (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
1259         ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
1260         reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
1261         Auxiliary definitions for the patterns.
1262         * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
1263         1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
1264         constraints.
1265         (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
1266         for speculation.
1267         (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
1268         * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
1269         2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
1270         New resource constraints.
1271         (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
1272         for speculation.
1273         (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
1274         * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
1275         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
1276         msched-in-control-spec, msched-ldc, msched-control-ldc,
1277         msched-spec-verbose, msched-prefer-non-data-spec-insns,
1278         msched-prefer-non-control-spec-insns,
1279         msched-count-spec-in-critical-path): New flags to tune speculative
1280         scheduling.
1281         * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
1282         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
1283         msched-in-control-spec, msched-ldc, msched-control-ldc,
1284         msched-spec-verbose, msched-prefer-non-data-spec-insns,
1285         msched-prefer-non-control-spec-insns,
1286         msched-count-spec-in-critical-path): Document new flags.
1287
1288 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1289
1290         * target.h (struct spec_info_def): New opaque declaration.
1291         (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
1292         speculate_insn, needs_block_p, gen_check,
1293         first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
1294         * target-def.h (TARGET_SCHED_ADJUST_COST_2,
1295         TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
1296         TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
1297         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
1298         TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
1299         gcc_target.sched.
1300         (TARGET_SCHED): Use new macros.
1301         * rtl.h (copy_DEPS_LIST_list): New prototype.
1302         * sched-int.h (struct sched_info): Change signature of new_ready field,
1303         adjust all initializations. New fields: add_remove_insn,
1304         begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
1305         region_head_or_leaf_p.
1306         (struct spec_info_def): New structure declaration.
1307         (spec_info_t): New typedef.
1308         (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
1309         recovery_block, orig_pat.
1310         (glat_start, glat_end): New variables declaraions.
1311         (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
1312         New access macros.
1313         (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
1314         DETACH_LIFE_INFO, USE_GLAT.
1315         (enum SPEC_SCHED_FLAGS): New enumeration.
1316         (NOTE_NOTE_BB_P): New macro.
1317         (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
1318         attach_life_info, debug_spec_status, check_reg_live): New functions.
1319         (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
1320         all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
1321         sched-ebb.c
1322         (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
1323         * ddg.c (get_block_head_tail): Adjust all uses.
1324         * modulo-sched.c (get_block_head_tail): Adjust all uses.
1325         (sms_sched_info): Initialize new fields.
1326         (contributes_to_priority): Removed.
1327         * haifa-sched.c (params.h): New include.
1328         (get_block_head_tail): Adjust all uses.
1329         (ISSUE_POINTS): New macro.
1330         (glat_start, glat_end): New global variables.
1331         (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
1332         nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
1333         old_last_basic_block, before_recovery, current_sched_info_var,
1334         rgn_n_insns, luid): New static variables.
1335         (insn_cost1): New function.  Move logic from insn_cost to here.
1336         (find_insn_reg_weight1): New function.  Move logic from
1337         find_insn_reg_weight to here.
1338         (reemit_notes, move_insn, max_issue): Change signature.
1339         (move_insn1): Removed.
1340         (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
1341         extend_bb): New static functions to support extension of scheduler's
1342         data structures.
1343         (generate_recovery_code, process_insn_depend_be_in_spec,
1344         begin_speculative_block, add_to_speculative_block,
1345         init_before_recovery, create_recovery_block, create_check_block_twin,
1346         fix_recovery_deps): New static functions to support
1347         generation of recovery code.
1348         (fix_jump_move, find_fallthru_edge, dump_new_block_header,
1349         restore_bb_notes, move_block_after_check, move_succs): New static
1350         functions to support ebb scheduling.
1351         (init_glat, init_glat1, attach_life_info1, free_glat): New static
1352         functions to support handling of register live information.
1353         (associate_line_notes_with_blocks, change_pattern, speculate_insn,
1354         sched_remove_insn, clear_priorities, calc_priorities, bb_note,
1355         add_jump_dependencies): New static functions.
1356         (check_cfg, has_edge_p, check_sched_flags): New static functions for
1357         consistancy checking.
1358         (debug_spec_status): New function to call from debugger.
1359         (priority): Added code to handle speculation checks.
1360         (rank_for_schedule): Added code to distinguish speculative instructions.
1361         (schedule_insn): Added code to handle speculation checks.
1362         (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
1363         Fixed to handle ebbs.
1364         (move_insn): Added code to handle ebb scheduling.
1365         (max_issue): Added code to use ISSUE_POINTS of instructions.
1366         (choose_ready): Added code to choose between speculative and
1367         non-speculative instructions.
1368         (schedule_block): Added code to handle ebb scheduling and scheduling of
1369         speculative instructions.
1370         (sched_init): Initialize new variables.
1371         (sched_finish): Free new variables.  Print statistics.
1372         (try_ready): Added code to handle speculative instructions.
1373         * lists.c (copy_DEPS_LIST_list): New function.
1374         * sched-deps.c (extend_dependency_caches): New function.  Move logic
1375         from create_dependency_caches to here.
1376         (get_dep_weak, ds_merge): Make global.
1377         * genattr.c (main): Code to output prototype for
1378         dfa_clear_single_insn_cache.
1379         * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
1380         (output_dfa_clean_insn_cache_func): Code to output
1381         dfa_clear_single_insn_cache function.
1382         * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
1383         n_insns.
1384         (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
1385         Removed.
1386         (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
1387         New static variables.
1388         (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
1389         fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
1390         struct sched_info.
1391         (ebb_sched_info): Initialize new fields.
1392         (get_block_head_tail): Adjust all uses.
1393         (compute_jump_reg_dependencies): Fixed to use glat_start.
1394         (schedule_ebb): Code to remove unreachable last block.
1395         (schedule_ebbs): Added code to update register live information.
1396         * sched-rgn.c (region_sched_info): Initialize new fields.
1397         (get_block_head_tail): Adjust all uses.
1398         (last_was_jump): Removed.  Adjust users.
1399         (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
1400         add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
1401         Implement new hooks.
1402         (check_dead_notes1): New static function.
1403         (struct region): New fields: dont_calc_deps, has_real_ebb.
1404         (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
1405         (BB_TO_BLOCK): Fixed to handle EBBs.
1406         (EBB_FIRST_BB, EBB_LAST_BB): New macros.
1407         (ebb_head): New static variable.
1408         (debug_regions, contributes_to_priority): Fixed to handle EBBs.
1409         (find_single_block_regions, find_rgns, find_more_rgns): Initialize
1410         new fields.
1411         (compute_dom_prob_ps): New assertion.
1412         (check_live_1, update_live_1): Fixed to work with glat_start instead of
1413         global_live_at_start.
1414         (init_ready_list): New assertions.
1415         (can_schedule_ready_p): Split update code to begin_schedule_ready.
1416         (new_ready): Add support for BEGIN_CONTROL speculation.
1417         (schedule_insns): Fixed code that updates register live information
1418         to handle EBBs.
1419         (schedule_region): Fixed to handle EBBs.
1420         (init_regions): Use extend_regions and check_dead_notes1.
1421         * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
1422         PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
1423         * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
1424         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
1425         TARGET_SCHED_GEN_CHECK,
1426         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
1427         TARGET_SCHED_SET_SCHED_FLAGS): Document.
1428         * doc/invoke.texi (max-sched-insn-conflict-delay,
1429         sched-spec-prob-cutoff): Document.
1430
1431 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1432
1433         * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
1434         inter_tick, queue_index.
1435         (struct sched_info): Change signature of init_ready_list field.
1436         Adjust all initializations.
1437         (RESOLVED_DEPS): New access macro.
1438         (ready_add): Remove prototype.
1439         (try_ready): Add prototype.
1440         * sched-rgn.c (init_ready_list): Use try_ready.
1441         (schedule_region): Initialize
1442         current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
1443         * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
1444         (init_ready_list): Use try_ready.
1445         (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
1446         * lists.c (remove_list_elem): Remove `static'.
1447         (remove_free_INSN_LIST_elem): New function.
1448         * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
1449         * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
1450         (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
1451         New constants.
1452         (readyp): New variable.
1453         (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
1454         change_queue_index, resolve_dep): New static functions.
1455         (try_ready): New function.  Adjust callers in sched-rgn.c and
1456         sched-ebb.c to use it instead of ready_add.
1457         (clock_var): Move at the begining of file.
1458         (rank_for_schedule): Fix typo.
1459         (queue_insn): Add assertion.  Handle QUEUE_INDEX.
1460         (ready_lastpos): Enforce assertion.
1461         (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
1462         update all callers.
1463         (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
1464         (schedule_insn): Rewrite to use try_ready and resolve_dep.
1465         (queue_to_ready): Use free_INSN_LIST_list.
1466         (early_queue_to_ready): Fix typo.
1467         (schedule_block): Init readyp.  Move init_ready_list call after the
1468         initialization of clock_var.  Fix error in rejecting insn by
1469         targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
1470         that previously corrected INSN_TICKs.  Add code for handling
1471         QUEUE_INDEX.
1472         (set_priorities): Fix typo.
1473         (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
1474         Clarify comment and code that keeps current_sched_info->next_tail
1475         non-null.
1476
1477 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1478
1479         * sched-rgn.c (extend_rgns): New static function.
1480         (find_rgns): Use it.
1481         (gather_region_statistics, print_region_statistics): New static
1482         functions.
1483         * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
1484         * doc/invoke.texi (max-sched-extend-regions-iters): Document.
1485
1486 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1487             Andrey Belevantsev <abel@ispras.ru>
1488
1489         * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
1490         * lists.c (unused_deps_list): New variable.
1491         (free_list): Add assertions to verify the proper distinguishing
1492         between INSN_LISTs and DEPS_LISTs.
1493         (find_list_elem, remove_list_elem, remove_list_node): New static
1494         functions.
1495         (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
1496         remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
1497         remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
1498         (alloc_INSN_LIST): Assert that the list we're working on is indeed
1499         an INSN_LIST.
1500         (free_INSN_LIST_node): Likewise.
1501         * modulo-sched.c (current_sched_info): Initialize flags field.
1502         * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
1503         * rtl.def (DEPS_LIST): Define.
1504         * rtl.h: Declare new functions from lists.c.
1505         * sched-deps.c (spec_dependency_cache): New static variable.
1506         (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
1507         (add_dependence): Change return type to void.  Move the logic to ...
1508         (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
1509         (delete_all_dependences): Add comment about forward_dependency_cache.
1510         Handle spec_dependency_cache.  Handle DEPS_LISTs.
1511         (fixup_sched_groups): Clarify the change of priority of output
1512         and anti dependencies.
1513         (sched_analyze_2): Adjust add_dependence calls to create data
1514         speculative dependence.
1515         (add_forward_dependence): Renamed to add_forw_dep, change prototype.
1516         Adjust all callers.  Handle DEPS_LISTS.
1517         (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
1518         presence of speculation.
1519         (init_dependency_caches, free_dependency_caches):
1520         Handle spec_dependency_cache.
1521         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
1522         estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
1523         New static functions.
1524         (add_or_update_back_dep, add_or_update_back_forw_dep,
1525         add_back_forw_dep, delete_back_forw_dep): New functions.
1526         * sched-int.h (ds_t, dw_t): New typedefs.
1527         (struct sched_info): Add new field flags.
1528         (struct haifa_insn_data): Add new bitfield has_internal_dep.
1529         Prototype new sched-deps.c functions.
1530         (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
1531         (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
1532         MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
1533         BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
1534         SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
1535         SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
1536         New constants.
1537         (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
1538         New enums.
1539         * sched-rgn.c (current_sched_info): Initialize flags field.
1540         (schedule_insns): Initialize current_sched_info before the sched_init
1541         call.
1542         * sched-ebb.c (current_sched_info): Initialize flags field.
1543         (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
1544         Call add_or_update_back_dep instead of add_dependence.
1545         Create control speculative dependencies.
1546         (schedule_insns): Initialize current_sched_info before the sched_init
1547         call.
1548
1549 2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>
1550
1551         * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
1552         fs->signal_frame.
1553         (sh_fallback_frame_state): Likewise.
1554
1555 2006-03-15  Geoffrey Keating  <geoffk@apple.com>
1556
1557         * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
1558         Do switch on default_use_cxa_atexit.
1559         (powerpc*-*-darwin*): Build crt2.o on powerpc.
1560         * config/darwin-crt3.o: New.
1561         * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
1562         to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
1563         (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
1564         OS version.
1565         * config/rs6000/t-darwin: Move crt2.o building to here.
1566         * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
1567         Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
1568         of __cxa_atexit.
1569
1570 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
1571
1572         * config/vax/vax.c (nonindexed_address_p): Change logical negation
1573         from '! xxx' to '!xxx' for coding-style conformance.
1574         * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
1575         (EXTRA_CONSTRAINT): Likewise.
1576         * config/vax/vax.md (four unnamed insns): Likewise.
1577
1578 2006-03-15  Paul Brook  <paul@codesourcery.com>
1579
1580         * config/arm/arm.c (minipool_pad): New.
1581         (add_minipool_forward_ref): Include pool alignment padding in address
1582         calculation.
1583         (push_minipool_fix): Set minipool_pad.
1584         (minipool_pad): Ditto.
1585
1586 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
1587
1588         * config/vax/vax.c (split_quadword_operands): Use MEM_P()
1589         instead of GET_CODE() == MEM and REG_P() instead of
1590         GET_CODE() == REG.
1591         (print_operand_address): Likewise.
1592         (vax_address_cost): Likewise.
1593         (vax_rtx_costs): Likewise.
1594         (vax_notice_update_cc): Likewise.
1595         (vax_output_int_add): Likewise.
1596         (INDEX_REGISTER_P): Likewise.
1597         (BASE_REGISTER_P): Likewise.
1598         (nonindexed_address_p): Likewise.
1599         (vax_mode_dependent_address_p): Likewise.
1600         * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
1601         (PRINT_OPERAND): Likewise.
1602         * config/vax/vax.md (ashlsi3): Likewise.
1603         (ashlsi3): Likewise.
1604         (some more unnamed insns): Likewise.
1605
1606 2006-03-15  Kazu Hirata  <kazu@codesourcery.com>
1607
1608         * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
1609         iterator-style macro.
1610         (mark_control_dependent_edges_necessary): Update the use of
1611         EXECUTE_IF_CONTROL_DEPENDENT.
1612
1613 2006-03-15  J"orn Rennecke <joern.rennecke@st.com>
1614
1615         * config/sh/predicates.md (cache_address_operand): Special.
1616         (ua_address_operand): Likewise.
1617
1618 2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>
1619
1620         * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
1621         loop notes.
1622         * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.
1623
1624 2006-03-15  Andreas Schwab  <schwab@suse.de>
1625
1626         * gensupport.c (identify_predicable_attribute): Don't free p_false
1627         when it is still in use.
1628
1629 2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>
1630
1631         * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
1632         the default setting here.
1633
1634 2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>
1635
1636         * tree-pass.h (pass_cfg): Remove.
1637         * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
1638         * passes.c (pass_cfg): Don't run it.
1639
1640 2006-03-14  Kazu Hirata  <kazu@codesourcery.com>
1641
1642         * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
1643         * reg-stack.c (stack_regs_mentioned_data): Change the type to
1644         VEC(char,heap) *.
1645         (stack_regs_mentioned): Update the uses of
1646         stack_regs_mentioned_data.  Don't access the array beyond its
1647         end.
1648         (reg_to_stack): Update the uses of stack_regs_mentioned_data.
1649         Don't include gt-reg-stack.h.
1650
1651         * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
1652         * system.h (UNALIGNED_WORD_ASM_OP): Poison.
1653
1654         * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.
1655
1656         PR middle-end/26684
1657         * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
1658         STACK_REGS.
1659
1660 2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1661
1662         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.
1663
1664 2006-03-14  Richard Guenther  <rguenther@suse.de>
1665
1666         PR tree-optimization/26672
1667         * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
1668         SSA form.
1669
1670 2006-03-14  Richard Guenther  <rguenther@suse.de>
1671
1672         PR tree-optimization/26667
1673         * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
1674         node for the callees.  Always allow inlining if it will shrink
1675         the function size.
1676
1677 2006-03-14  Richard Guenther  <rguenther@suse.de>
1678
1679         PR middle-end/26659
1680         * builtins.c (get_pointer_alignment): Prefer alignment
1681         information from decls over that from types.
1682
1683 2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>
1684
1685         PR target/26657
1686         * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.
1687
1688 2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>
1689
1690         * config/rs6000/rs6000.opt (mdlmzb): New option.
1691         (msched-prolog, msched-epilog): Use Var not Mask.
1692         * doc/invoke.texi (-mdlmzb): Document.
1693         * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
1694         MASK_SCHED_PROLOG.
1695         (rs6000_override_options): Enable -mdlmzb for 405 and 440.
1696         * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.
1697
1698 2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>
1699
1700         PR rtl-optimization/25739
1701         * bt-load.c (augment_live_range): Free tos pointer.
1702
1703         * gensupport.c (identify_predicable_attribute): Free
1704         p_false pointer.
1705         * gcov.c (create_file_names): Free name pointer.
1706
1707 2006-03-13  Roger Sayle  <roger@eyesopen.com>
1708
1709         PR middle-end/26557
1710         * stmt.c (emit_case_nodes): Handle the case where the index is a
1711         CONST_INT, where the comparison mode is specified by the index type.
1712
1713 2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1714
1715         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
1716         is defined.
1717
1718 2006-03-13  Richard Sandiford  <richard@codesourcery.com>
1719
1720         * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
1721         (*branch_fp_inverted): Likewise.
1722
1723 2006-03-13  Jakub Jelinek  <jakub@redhat.com>
1724
1725         PR middle-end/25989
1726         * omp-low.c (expand_omp_for_generic): Mark istart0
1727         and iend0 as addressable.
1728
1729 2006-03-13  Jie Zhang  <jie.zhang@analog.com>
1730
1731         * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
1732
1733 2006-03-13  Jeff Law  <law@redhat.com>
1734
1735         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
1736         virtual operands are interesting.
1737         (vrp_visit_stmt): Corresponding changes.
1738
1739 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
1740
1741         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
1742         of RETS.
1743         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
1744         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
1745         * config/bfin/crti.S: Use it instead of __PIC__.
1746         * config/bfin/crtn.S: Likewise.
1747
1748         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
1749         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
1750         not if flag_pic.
1751         Lose 'G' modifier for call operand.
1752         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
1753         recognize 'G' modifier.
1754
1755 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
1756
1757         PR middle-end/18859
1758         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
1759         * stmt.c (expand_case): Likewise.
1760
1761 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1762
1763         PR rtl-optimization/26254
1764         * loop-invariant.c (seq_insns_valid_p): New function.
1765         (move_invariant_reg): Only emit new code if it is valid.
1766
1767 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1768
1769         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
1770         Removed.
1771         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
1772         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
1773         (commit_one_edge_insertion): Do not look for loop notes.
1774
1775 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1776
1777         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
1778         flag_test_coverage out of loop.
1779
1780 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1781
1782         * final.c (shorten_branches): Remove outdated comment, and turn
1783         the if branch that guards it to continue.
1784
1785 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1786
1787         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
1788         * cfgloop.h (struct loop): Remove unused fields.
1789
1790 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
1791
1792         * doc/invoke.texi (-fdump-rtl-loop): Remove.
1793         (-dL, -fdump-rtl-loop2): Update the dump file names
1794
1795         * doc/invoke.texi: Update dump file names.
1796
1797 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
1798
1799         * predict.c (estimate_probability): Remove.
1800         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
1801         * basic-block.h (estimate_probability): Remove prototype.
1802         * passes.c (finish_optimization_passes): Dump branch prediction or
1803         profiling heuristics to the .profile tree dump.
1804         (init_optimization_passes): Unqueue pass_branch_prob.
1805
1806         * doc/invoke.texi (-fdump-rtl-bp): Remove.
1807
1808 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
1809
1810         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
1811         * rtl.h (LABEL_NEXTREF): Remove field accessor.
1812
1813 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
1814
1815         * function.h (frame_offset_overflow): Declare.
1816         * function.c (frame_offset_overflow): New function.
1817         (assign_stack_local_1): Call it to detect that the offset overflows.
1818         * cfgexpand.c (alloc_stack_frame_space): Likewise.
1819
1820 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
1821
1822         * config/sh/sh.c: Include alloc-pool.h.
1823         (label_ref_list_pool): New alloc pool.
1824         (label_ref_list_t): New type for lists of labels.
1825         (struct pool_node): Make wend a label_ref_list_t.
1826         (add_constant): Use the new type, eradicate LABEL_NEXTREF
1827         references.
1828         (dump_table): Likewise.
1829         (sh_reorg): Set up the alloc pool before using add_constant and
1830         dump_table, and destroy it when finishing.
1831
1832 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
1833
1834         * config/mips/mips.c: Remove redundant comment.
1835
1836 2006-03-10  Jason Merrill  <jason@redhat.com>
1837
1838         PR c/26004
1839         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
1840         the target was declared 'register'.
1841
1842 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
1843
1844         * genpreds.c (write_insn_constraint_len): Change definition of
1845         insn_constraint_len to return size_t to match the declaration.
1846
1847 2006-03-10  DJ Delorie  <dj@redhat.com>
1848
1849         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
1850         start at zero.
1851         (m32c_expand_insv): Fix test for an AND mask.
1852
1853 2006-03-10  Richard Guenther  <rguenther@suse.de>
1854
1855         PR middle-end/26565
1856         * builtins.c (get_pointer_alignment): Handle component
1857         references for field alignment.
1858
1859 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
1860
1861         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
1862         when building with libgloss.
1863         (sh*elf): Implement --without-fp option.
1864         (sh64-superh-linux*): Don't multilib.
1865
1866 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
1867
1868         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
1869
1870 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
1871
1872         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
1873         Set it when one of the replacement functions returned true.
1874         Return TODO_cleanup_cfg if cfgchanged is true.
1875         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
1876
1877 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
1878
1879         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
1880         instead of gen_lowpart.
1881
1882 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
1883
1884         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
1885         interface.
1886         (mips_output_order_conditional_branch): Declare.
1887         * config/mips/mips.h (MIPS_BRANCH): New macro.
1888         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
1889         for the comparison.  Use gen_condjump.
1890         (mips_output_conditional_branch): Rework interface to take the
1891         asm templates for a direct branch and the inverse of a direct branch.
1892         (mips_output_order_conditional_branch): New function.
1893         (mips_builtin_branch_and_move): New function.
1894         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
1895         branch condition.  Use gen_single_cc as the condition for
1896         __builtin_mips_upper_* or __builtin_mips_lower_*.
1897         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
1898         Use VOIDmode for the branch condition.
1899         * config/mips/predicates.md (order_operator): New predicate.
1900         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
1901         (branch_fp): Rename to...
1902         (*branch_fp): ...this.  Remove mode from comparison operator.
1903         Use new mips_output_conditional_branch interface.
1904         (branch_fp_inverted): Rename to...
1905         (*branch_fp_inverted): ...this and update as for *branch_fp.
1906         (*branch_zero<mode>): Rename to...
1907         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
1908         Use mips_output_order_conditional_branch.  Only accept ordered
1909         comparisons.
1910         (*branch_zero<mode>_inverted): Rename to...
1911         (*branch_order<mode>_inverted): ...this and update as for
1912         *branch_order<mode>.
1913         (*branch_equality<mode>): Accept zero as the second operand to
1914         the equality operator.  Use the new mips_output_conditional_branch
1915         interface.
1916         (*branch_equality<mode>_inverted): Likewise.
1917         (condjump): New expander.
1918         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
1919         operator.
1920         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
1921         (bc1any2t, bc1any2f): Likewise.
1922         (single_cc): New expander.
1923         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
1924
1925 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
1926
1927         * doc/md.texi: Update documentation of MIPS constraints.
1928         * config/mips/constraints.md: New file.
1929         * config/mips/mips.md: Include it.
1930         * config/mips/mips.c (mips_char_to_class): Delete.
1931         (override_options): Don't initialize mips_char_to_class.
1932         * config/mips/mips.h (mips_char_to_class): Delete.
1933         (REG_CLASS_FROM_LETTER): Delete.
1934         (CONST_OK_FOR_LETTER_P): Delete.
1935         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
1936         (EXTRA_CONSTRAINT_Y): Delete.
1937         (EXTRA_CONSTRAINT_STR): Delete.
1938         (CONSTRAINT_LEN): Delete.
1939         (EXTRA_MEMORY_CONSTRAINT): Delete.
1940
1941 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
1942
1943         * tree-cfg.c (move_block_to_fn): Remove the statements from the
1944         original fn's eh regions.
1945
1946 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
1947
1948         * fold-const.c (build_range_check): Make sure to use a valid type to
1949         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
1950         transformation.
1951
1952         (range_predecessor): New static function.
1953         (range_successor): Likewise.
1954         (merge_ranges): Use them to compute predecessors and successors of
1955         range bounds.
1956
1957 2006-03-09  Roger Sayle  <roger@eyesopen.com>
1958
1959         PR middle-end/26561
1960         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
1961         X op C3, consider whether C3 overflows towards +Inf or -Inf.
1962
1963 2006-03-08  DJ Delorie  <dj@redhat.com>
1964
1965         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
1966         (addpsi3): Expand to include memory operands.  Remove
1967         reload-specific splits.
1968         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
1969         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
1970         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
1971         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
1972         (shift1_qi, shift1_hi, insv): New.
1973         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
1974         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
1975         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
1976         cond_to_int): New.
1977         * config/m32c/m32c-protos.h: Update as needed.
1978         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
1979         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
1980         Fail for unrecognized R* constraints.
1981         (m32c_cannot_change_mode_class): Be more picky about pseudos.
1982         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
1983         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
1984         Add Sp constraint.
1985         (m32c_init_libfuncs): New.
1986         (m32c_legitimate_address_p): Add debug wrapper.
1987         (m32c_rtx_costs): New.
1988         (m32c_address_cost): New.
1989         (conversions): Add 'B' prefix.
1990         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
1991         operands, or word regnames for QI operands.  'B' prints bit
1992         position.
1993         (m32c_expand_setmemhi): New.
1994         (m32c_expand_movmemhi): New.
1995         (m32c_expand_movstr): New.
1996         (m32c_expand_cmpstr): New.
1997         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
1998         (m32c_expand_neg_mulpsi3): Handle non-ints.
1999         (m32c_cmp_flg_0): New.
2000         (m32c_expand_movcc): New.
2001         (m32c_expand_insv): New.
2002         (m32c_scc_pattern): New.
2003         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
2004         a0/a1 out of SIregs.
2005         (STORE_FLAG_VALUE): New.
2006         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
2007         code macros.
2008         (no_insn): New.
2009         * config/m32c/mov.md: Make constraints more liberal.
2010         (zero_extendqihi2): Optimize r0/r1 case.
2011         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
2012         * config/m32c/predicates.md (m32c_any_operand): New.
2013         (m32c_nonimmediate_operand): New.
2014         (m32c_hl_operand): New.
2015         (m32c_r3_operand): New.
2016         (ap_operand): New.
2017         (ma_operand): New.
2018         (memsym_operand): New.
2019         (memimmed_operand): New.
2020         (a_qi_operand): New.
2021         (m32c_eqne_operator): New.
2022         (m32c_1bit8_operand): New.
2023         (m32c_1bit16_operand): New.
2024         (m32c_1mask8_operand): New.
2025         (m32c_1mask16_operand): New.
2026         * config/m32c/blkmov.md: New file.
2027         * config/m32c/t-m32c (MD_FILES): Add blkmov.
2028
2029 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
2030
2031         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
2032         unsigned to fix signed/unsigned comparison issue in
2033         DWARF2_FRAME_REG_OUT.
2034         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
2035         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
2036
2037         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
2038         of ptr into the ENABLE_CHECKING section.
2039
2040 2006-03-08  Jeff Law  <law@redhat.com>
2041
2042         * tree-vrp.c (infer_value_range): Only count pointer uses
2043         and dereferences if -fdelete-null-pointer-checks is enabled.
2044
2045         * tree-vrp.c (find_assert_locations): Infer value ranges for
2046         single use pointers, but do not create ASSERT_EXPRs for them.
2047         When a non-null range is inferred for a pointer, backwards
2048         propagate that range to other equivalent pointers through the
2049         use-def chain.
2050
2051 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
2052
2053         PR bootstrap/26500
2054         * Makefile.in (dvi, html, install-info): Invoke the corresponding
2055         language hook targets.
2056         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
2057         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
2058         if language hook targets were missing.
2059
2060 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
2061
2062         * tree-ssa-opfinalize.h: Removed.
2063         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
2064         dependency.
2065         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
2066         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
2067         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
2068         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
2069         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
2070         finalize_ssa_v_must_def_ops): New.
2071
2072 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
2073
2074         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
2075         block as parameter.
2076
2077 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
2078
2079         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
2080
2081         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
2082         addresses with offsets; reorganize.
2083
2084         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
2085         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
2086         (expand_builtin_init_dwarf_reg_sizes): Likewise.
2087
2088 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
2089
2090         PR target/26588
2091         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
2092
2093 2006-03-08  Ben Elliston  <bje@au.ibm.com>
2094
2095         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
2096
2097 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
2098
2099         PR gomp/26238
2100         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
2101         expansion.
2102
2103 2006-03-07  Richard Guenther  <rguenther@suse.de>
2104
2105         PR tree-optimization/26587
2106         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
2107
2108 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
2109
2110         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
2111
2112 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
2113
2114         * hooks.c (hook_bool_mode_rtx_true): New function.
2115         * hooks.h (hook_bool_mode_rtx_true): Declare.
2116         * toplev.c (compile_file): Call output_shared_constant_pool.
2117         * varasm.c (shared_constant_pool): New variable.
2118         (assemble_start_function, assemble_end_function): Remove arguments
2119         from call to output_constant_pool.
2120         (create_constant_pool): New function, split out from...
2121         (init_varasm_status): ...here.
2122         (force_const_mem): Choose between the shared and per-function constant
2123         pools.  Set current_function_uses_const_pool when reusing old entries
2124         as well as when creating new ones.
2125         (mark_constant): Ignore data argument.
2126         (mark_constants): Remove pool argument.
2127         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
2128         to decide whether the function uses a constant pool.
2129         (output_constant_pool_contents): New function, split out from...
2130         (output_constant_pool): ...here.
2131         (output_shared_constant_pool): New function.
2132         (init_varasm_once): Initialize shared_constant_pool.
2133         * output.h (output_constant_pool): Delete.
2134         (output_shared_constant_pool): Declare.
2135         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
2136         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
2137
2138 2006-03-06  Nick Clifton  <nickc@redhat.com>
2139
2140         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
2141         flag_strength_reduce.
2142
2143 2006-03-06  Ben Elliston  <bje@au.ibm.com>
2144
2145         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
2146         x86_64-*-linux* configurations.
2147
2148         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
2149         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
2150
2151 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2152
2153         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
2154         Remove.
2155         * basic-block.h: Remove the extern for
2156         rediscover_loops_after_threading.
2157
2158         * cfgloop.c (cancel_loop): Make it static.
2159         * cfgloop.h: Remove the prototype for cancel_loop.
2160
2161         * flow.c (recompute_reg_usage): Make it static.
2162         * rtl.h: Remove the prototype for recompute_reg_usage.
2163
2164         * function.c (use_return_register): Make it static.
2165         * function.h: Remove the prototype.
2166
2167 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2168
2169         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
2170         Remove.
2171         * recog.h: Remove the prototype for
2172         validate_change_maybe_volatile.
2173
2174 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2175
2176         * rtlanal.c (replace_reg): Remove.
2177         * rtl.h: Remove the prototype for replace_reg.
2178
2179 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2180
2181         * regclass.c (reg_scan_update): Remove.
2182         (reg_scan_mark_refs): Remove the last argument.
2183         * rtl.h: Remove the prototype for reg_scan_update.
2184
2185 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2186
2187         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
2188         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
2189         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
2190         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
2191         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
2192         loop-invariant.c, omp-low.c, opts.c, passes.c,
2193         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
2194         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
2195         tree-ssa-structalias.c, tree-ssa-threadedge.c,
2196         tree-ssa-threadupdate.c, tree-vect-patterns.c,
2197         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
2198         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
2199
2200 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2201
2202         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
2203         * dwarf2out.h: Remove the prototype for
2204         dwarf2out_add_library_unit_info.
2205
2206 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2207
2208         * tree.c (add_var_to_bind_expr): Remove.
2209         * tree.h: Remove the prototype for add_var_to_bind_expr.
2210
2211 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2212
2213         * regclass.c (n_non_fixed_regs): Remove.
2214         (init_reg_sets_1, globalize_reg): Remove all uses of
2215         n_non_fixed_regs.
2216         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
2217
2218 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2219
2220         * rtlanal.c (insns_safe_to_move_p): Remove.
2221         * rtl.h: Remove the prototype for insns_safe_to_move_p.
2222
2223 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2224
2225         * expmed.c (expand_mult_add): Remove.
2226         * expr.h: Remove the prototype for expand_mult_add.
2227
2228 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
2229
2230         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
2231         and REG_SAVED_VAL_EXP constants.
2232         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
2233         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
2234         Handle regs stored by value.
2235         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
2236         (execute_cfa_program): Handle DW_CFA_val_offset,
2237         DW_CFA_val_offset_sf and DW_CFA_val_expression.
2238         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
2239         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
2240         (uw_install_context_1): Handle target regs stored by value.
2241
2242 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
2243
2244         * tree-sra.c (tree_sra): Return todoflags;
2245         (generate_one_element): Set TODO_update_smt_usage if needed.
2246         (pass_sra): Remove TODO_update_smt_usage.
2247         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
2248         parameter.
2249         (tree_ssa_forward_propagate_single_use_vars): Return
2250         TODO_update_smt_usage if we need to update SMT usage.
2251         (pass_forwprop): Remove TODO_update_smt_usage.
2252
2253 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
2254
2255         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
2256         (correct_use_link): Remove reference to get_stmt_operands.
2257         (update_stmt_operands): Likewise.
2258         (get_modify_expr_operands): New function factored out of
2259         parse_ssa_operands and get_expr_operands.
2260         Try to create V_MUST_DEFs for LHS by default.
2261         (get_expr_operands) <case MODIFY_EXPR>: Call
2262         get_modify_expr_operands.
2263         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
2264         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
2265         (parse_ssa_operands) <case MODIFY_EXPR>: Call
2266         get_modify_expr_operands.
2267
2268 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
2269
2270         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
2271         * tree-flow.h: Remove the prototype for
2272         referenced_var_lookup_if_exists.
2273
2274 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
2275
2276         PR rtl-optimization/26345
2277         PR target/19061
2278         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
2279
2280 2006-03-03  Roger Sayle  <roger@eyesopen.com>
2281
2282         PR tree-optimization/26524
2283         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
2284         fold_convert to create a constant of the appropriate type.
2285
2286 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
2287
2288         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
2289         SYMBOL_REF_IN_BLOCK_P.
2290         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
2291         of SYMBOL_FLAG_IN_BLOCK.
2292         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
2293         instead of SYMBOL_REF_IN_BLOCK_P.
2294         * explow.c (use_anchored_address): Likewise.
2295         * rtl.c (rtx_size): Likewise.
2296         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
2297         instead of SYMBOL_FLAG_IN_BLOCK.
2298         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
2299         SYMBOL_REF_IN_BLOCK_P.
2300         (assemble_variable): Likewise.
2301         (output_constant_def_contents): Likewise.
2302         (output_constant_pool): Likewise.
2303         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
2304         instead of SYMBOL_FLAG_IN_BLOCK.
2305         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
2306         SYMBOL_REF_IN_BLOCK_P.
2307         (SYMBOL_REF_BLOCK): Likewise.
2308         (SYMBOL_REF_OFFSET): Likewise.
2309         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
2310         SYMBOL_REF_IN_BLOCK_P.
2311         (SYMBOL_FLAG_IN_BLOCK): Replace with...
2312         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
2313         (SYMBOL_REF_IN_BLOCK_P): Replace with...
2314         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
2315
2316 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
2317
2318         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
2319
2320 2006-03-02  Roger Sayle  <roger@eyesopen.com>
2321
2322         * simplify-rtx.c (simplify_unary_operation): When simplifying
2323         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
2324         that we perform the right shift in the appropriate mode, and
2325         then extend or truncate the result to requested mode.
2326
2327 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
2328
2329         * gengtype.c (main): Handle double_int type.
2330         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
2331         * double-int.c: New file.
2332         * double-int.h: New file.
2333         * system.h: Include doubleint.h.
2334         * Makefile.in (SYSTEM_H): Include double-int.h.
2335         (double-int.o): Add.
2336
2337 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
2338
2339         PR bootstrap/26478
2340         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
2341         copying over it.
2342
2343 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
2344
2345         * tree-vrp.c (remove_range_assertions): Do not update statements
2346         unnecessarily.
2347
2348 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
2349
2350         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
2351         cleanup.
2352         * gcse.c (rest_of_handle_gcse): Ditto.
2353         * except.c (gate_handle_eh): Ditto.
2354         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
2355         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
2356
2357 2006-03-02  Eric Christopher  <echristo@apple.com>
2358
2359         * config/i386/i386.c (machopic_output_stub): Add indirection to
2360         jump.
2361
2362 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
2363
2364         * loop.c: Removed.
2365
2366 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
2367
2368         Sun Niagara specific optimizations.
2369         * config.gcc: Recognize niagara as target.
2370         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
2371         (TARGET_CPU_niagara): Define.
2372         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
2373         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
2374         (CPP_CPU_SPEC): Handle -mcpu=niagara.
2375         (ASM_CPU_SPEC): Likewise.
2376         (PROCESSOR_NIAGARA): New enum entry.
2377         (REGISTER_MOVE_COST): Handle Niagara.
2378         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
2379         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
2380         (sparc_override_options): Recognize "niagara", set appropriate
2381         default MASK_* values for it, and align functions to 32-bytes
2382         by default just like ULTRASPARC/ULTRASPARC3.
2383         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
2384         (sparc64_initialize_trampoline): Likewise.
2385         (sparc_use_sched_lookahead): Use zero for niagara.
2386         (sparc_issue_rate): Use one for niagara.
2387         * config/sparc/niagara.md: New file.
2388         * config/sparc/sparc.md: Include it.
2389         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
2390         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
2391         when default cpu is niagara.
2392         (CPP_CPU_SPEC): Handle -mcpu=niagara.
2393         (ASM_CPU_SPEC): Likewise.
2394         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
2395         when default cpu is niagara.
2396         (ASM_CPU_SPEC): Handle -mcpu=niagara.
2397         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
2398         just like v9/ultrasparc/ultrasparc3.
2399         * doc/invoke.texi: Add documentation for "niagara" and improve
2400         existing documentation for ultrasparc variants.
2401
2402 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
2403
2404         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
2405
2406 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
2407
2408         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
2409         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
2410         and say that only one is needed.
2411         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
2412         * target.h (have_switchable_bss_sections): New hook.
2413         * explow.c (use_anchored_address): Check that the symbol is in a block.
2414         * varasm.c (tls_comm_section, comm_section, lcomm_section)
2415         (bss_noswitch_section): New variables.
2416         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
2417         (get_noswitch_section): New function.
2418         (get_block_for_section): Allow SECT to be null.
2419         (unlikely_text_section_p): Use SECTION_STYLE.
2420         (bss_initializer_p): New function.
2421         (get_variable_section): Move earlier in file.  Take a new argument,
2422         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
2423         Return one of the new *_sections in such cases.
2424         (get_block_for_decl): New function, extracting some logic from
2425         use_blocks_for_decl_p.
2426         (change_symbol_section): Remove in favor of...
2427         (change_symbol_block): ...this new function.
2428         (use_blocks_for_decl_p): Remove checks now performed by
2429         get_block_for_decl.
2430         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
2431         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
2432         (emit_local, emit_bss, emit_common): ...these new functions.
2433         Return true if the alignment was honored.
2434         (emit_tls_common): New function.
2435         (asm_emit_uninitialised): Delete.
2436         (assemble_variable_noswitch): New function, split out from...
2437         (assemble_variable): ...here.  Don't make decisions about common
2438         variables here.  Globalize all public decls that go into non-common
2439         sections.  Check whether SYMBOL_REF_BLOCK is null.
2440         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
2441         (output_constant_pool): Likewise.
2442         (init_varasm_once): Initialize the new section variables.
2443         (have_global_bss_p): New function.
2444         (categorize_decl_for_section): Use bss_initializer_p.
2445         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
2446         (place_block_symbol): Assert that the symbol must be in a block.
2447         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
2448         (TARGET_INITIALIZER): Include it.
2449         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
2450         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
2451         (SECTION_MACH_DEP): Bump by two.
2452         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
2453         (unnamed_section): Mention SECTION_UNNAMED in comment.
2454         (named_section): Likewise SECTION_NAMED.
2455         (noswitch_section_callback): New type.
2456         (noswitch_section): New structure.
2457         (section): Add a noswitch_section alternative.
2458         (SECTION_STYLE): New macro.
2459         (tls_comm_section, comm_section, lcomm_section): Declare.
2460         (bss_noswitch_section, have_global_bss_p): Declare.
2461         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
2462         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
2463         Override.
2464         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
2465         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
2466         Override.
2467
2468 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
2469
2470         * gcc/tree-vrp.c (execute_vrp): Return value.
2471         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
2472         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
2473         * gcc/tree-complex.c (tree_lower_complex): Ditto.
2474         (tree_lower_complex_O0): Ditto.
2475         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
2476         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
2477         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
2478         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
2479         (execute_tail_calls): Ditto.
2480         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2481         * gcc/tree.h (init_function_for_compilation): Ditto.
2482         * gcc/ipa-cp.c (ipcp_driver): Ditto.
2483         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
2484         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
2485         * gcc/final.c (compute_alignments): Ditto.
2486         (rest_of_handle_final): Ditto.
2487         (rest_of_handle_shorten_branches): Ditto.
2488         (rest_of_clean_state): Ditto.
2489         * gcc/omp-low.c (execute_expand_omp): Ditto.
2490         (execute_lower_omp): Ditto.
2491         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
2492         * gcc/ipa-reference.c (static_execute): Ditto.
2493         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
2494         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
2495         (rest_of_handle_machine_reorg): Ditto.
2496         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
2497         * gcc/flow.c (recompute_reg_usage): Ditto.
2498         (rest_of_handle_remove_death_notes): Ditto.
2499         (rest_of_handle_life): Ditto.
2500         (rest_of_handle_flow2): Ditto.
2501         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
2502         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
2503         (do_ssa_store_ccp): Ditto.
2504         (execute_fold_all_builtins): Ditto.
2505         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
2506         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
2507         * gcc/ipa-pure-const.c (static_execute): Ditto.
2508         * gcc/cse.c (rest_of_handle_cse): Ditto.
2509         (rest_of_handle_cse2): Ditto.
2510         * gcc/web.c (rest_of_handle_web): Ditto.
2511         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
2512         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
2513         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
2514         * gcc/tree-nrv.c (tree_nrv): Ditto.
2515         (execute_return_slot_opt): Ditto.
2516         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
2517         (create_structure_vars): Ditto.
2518         * gcc/loop-init.c (rtl_loop_init): Ditto.
2519         (rtl_loop_done): Ditto.
2520         (rtl_move_loop_invariants): Ditto.
2521         (rtl_unswitch): Ditto.
2522         (rtl_unroll_and_peel_loops): Ditto.
2523         (rtl_doloop): Ditto.
2524         * gcc/gimple-low.c (lower_function_body): Ditto.
2525         (mark_used_blocks): Ditto.
2526         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
2527         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
2528         (cgraph_early_inlining): Ditto.
2529         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
2530         * gcc/jump.c (cleanup_barriers): Ditto.
2531         (purge_line_number_notes): Ditto.
2532         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
2533         (rest_of_handle_if_after_reload): Ditto.
2534         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
2535         (tree_ssa_loop_im): Ditto.
2536         (tree_ssa_loop_unswitch): Ditto.
2537         (tree_vectorize): Ditto.
2538         (tree_linear_transform): Ditto.
2539         (tree_ssa_loop_ivcanon): Ditto.
2540         (tree_ssa_empty_loop): Ditto.
2541         (tree_ssa_loop_bounds): Ditto.
2542         (tree_complete_unroll): Ditto.
2543         (tree_ssa_loop_prefetch): Ditto.
2544         (tree_ssa_loop_ivopts): Ditto.
2545         (tree_ssa_loop_done): Ditto.
2546         * gcc/predict.c (tree_estimate_probability): Ditto.
2547         * gcc/recog.c (split_all_insns_noflow): Ditto.
2548         (rest_of_handle_peephole2): Ditto.
2549         (rest_of_handle_split_all_insns): Ditto.
2550         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
2551         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
2552         (rest_of_handle_stack_adjustments): Ditto.
2553         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
2554         * gcc/function.c (instantiate_virtual_regs): Ditto.
2555         (init_function_for_compilation): Ditto.
2556         (rest_of_handle_check_leaf_regs): Ditto.
2557         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
2558         (rest_of_handle_gcse): Ditto.
2559         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
2560         * gcc/alias.c (rest_of_handle_cfg): Ditto.
2561         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
2562         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
2563         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
2564         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
2565         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
2566         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
2567         * gcc/except.c (set_nothrow_function_flags): Ditto.
2568         (convert_to_eh_region_ranges): Ditto.
2569         (rest_of_handle_eh): Ditto.
2570         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
2571         (remove_unnecessary_notes): Ditto.
2572         * gcc/except.h (set_nothrow_function_flags): Ditto.
2573         (convert_to_eh_region_ranges): Ditto.
2574         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
2575         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
2576         * gcc/tree-ssa-pre.c (do_pre): Ditto.
2577         (execute_fre): Ditto.
2578         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
2579         (rest_of_handle_jump2): Ditto.
2580         * gcc/tree-sra.c (tree_sra): Ditto.
2581         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
2582         (execute_mudflap_function_decls): Ditto.
2583         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
2584         (do_store_copy_prop): Ditto.
2585         * gcc/ipa-prop.h (ipcp_driver): Ditto.
2586         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
2587         * gcc/tree-ssa-forwprop.c
2588         (tree_ssa_forward_propagate_single_use_vars): Ditto.
2589         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
2590         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
2591         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
2592         (execute_late_warn_uninitialized): Ditto.
2593         * gcc/rtl.h (cleanup_barriers): Ditto.
2594         (split_all_insns_noflow): Ditto.
2595         (purge_line_number_notes): Ditto.
2596         (unshare_all_rtl): Ditto.
2597         (remove_unnecessary_notes): Ditto.
2598         (recompute_reg_usage): Ditto.
2599         (variable_tracking_main): Ditto.
2600         * gcc/integrate.c (emit_initial_value_sets): Ditto.
2601         * gcc/integrate.h (emit_initial_value_sets): Ditto.
2602         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
2603         (execute_free_cfg_annotations): Ditto.
2604         (execute_fixup_cfg): Ditto.
2605         (execute_cleanup_cfg_pre_ipa): Ditto.
2606         (execute_cleanup_cfg_post_optimizing): Ditto.
2607         (execute_init_datastructures): Ditto.
2608         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
2609         * gcc/combine.c (rest_of_handle_combine): Ditto.
2610         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
2611         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
2612         (rest_of_handle_reorder_blocks): Ditto.
2613         (rest_of_handle_partition_blocks): Ditto.
2614         * gcc/var-tracking.c (variable_tracking_main): Ditto.
2615         * gcc/tree-profile.c (tree_profiling): Ditto.
2616         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
2617         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
2618         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
2619         (rest_of_handle_sched2): Ditto.
2620         * gcc/basic-block.h (free_bb_insn): Ditto.
2621         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
2622         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
2623         (remove_useless_stmts): Ditto.
2624         (split_critical_edges): Ditto.
2625         (execute_warn_function_return): Ditto.
2626         (execute_warn_function_noreturn): Ditto.
2627         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
2628         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
2629         * gcc/passes.c (execute_one_pass): Run additional
2630         todos returned by execute function.
2631         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
2632         return a value.
2633
2634 2006-03-02  Richard Guenther  <rguenther@suse.de>
2635
2636         * tree-ssa-alias.c (find_used_portions): Consider taking
2637         the address as making the variable not write-only.
2638
2639 2006-03-02  Nick Clifton  <nickc@redhat.com>
2640
2641         * config.gcc (default_use_cxa_atexit): Extend the description of
2642         this configure variable.  Set its default value to "yes" for
2643         Linux, NetBSD and ELF targets on the assumption that they will
2644         use C libraries with the __cxa_atexit function.
2645
2646 2006-03-02  Ben Elliston  <bje@au.ibm.com>
2647
2648         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
2649         parameter as unused to suppress a build warning.
2650
2651 2006-03-02  Ben Elliston  <bje@au.ibm.com>
2652
2653         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
2654         config/dfp-bit.c.
2655
2656 2006-03-01  Roger Sayle  <roger@eyesopen.com>
2657
2658         PR other/26489
2659         * gthr-posix.h (__gthrw2): Define to take three parameters, the
2660         declared name, the weak reference name, and the typeof name.
2661         (__gthrw): Avoid expanding the declared name suffix.
2662         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
2663
2664 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
2665
2666         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
2667         from DWARF 3.
2668         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
2669         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
2670         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
2671         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
2672         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
2673         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
2674         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
2675         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
2676         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
2677         DW_DS_leading_separate, DW_DS_trailing_separate): New.
2678         (DW_END_default, DW_END_big, DW_END_little): New.
2679         (DW_END_lo_user, DW_END_hi_user): Define.
2680         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
2681         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
2682         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
2683         DW_LANG_D): New.
2684
2685 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
2686
2687         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
2688         Update all users.
2689         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
2690         Update all users.
2691         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
2692         Update all users.
2693         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
2694         Update all users.
2695         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
2696         to 'symbol_mem_tag'.
2697         Update all users.
2698         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
2699         rename.
2700
2701 2006-03-01  Roger Sayle  <roger@eyesopen.com>
2702
2703         * builtins.c (fold_builtin_copysign): Delete unreachable code.
2704
2705 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
2706
2707         PR target/25761
2708         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
2709         MACHO_DYNAMIC_NO_PIC_P.
2710         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
2711
2712 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
2713
2714         PR target/26389
2715         * config/darwin-protos.h (darwin_asm_output_anchor):
2716         Declare.
2717         * config/darwin-sections.def (cstring_section):
2718         Add SECTION_MERGE to the flags.
2719         (literal4_section): Likewise.
2720         (literal8_section): Likewise.
2721         (objc_selector_refs_section): Likewise.
2722         (objc_cls_refs_section): Likewise.
2723         * config/darwin.c (darwin_asm_output_anchor): New
2724         function.
2725         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
2726
2727 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
2728
2729         Fix PR tree-optimization/26443
2730         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
2731         to todo and PROP_tmt_usage to properties_destroyed.
2732         * tree-ssa-ccp.c (pass_ccp): Ditto.
2733         (pass_store_ccp): Ditto.
2734         * tree-ssa-dom.c (pass_dominator): Ditto.
2735
2736 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
2737
2738         * tree-ssa-operands.c: Cleanup whitespace.
2739         (get_asm_expr_operands): Move before first invocation.
2740         (get_indirect_ref_operands): Likewise.
2741         (get_tmr_operands): Likewise.
2742         (get_call_expr_operands): Likewise.
2743         (append_def): Likewise.
2744         (append_use): Likewise.
2745         (append_v_may_def): Likewise.
2746         (append_v_must_def): Likewise.
2747         (add_call_clobber_ops): Likewise.
2748         (add_call_read_ops): Likewise.
2749         (add_stmt_operand): Likewise.
2750         (add_virtual_operand): Likewise.
2751         (build_ssa_operands): Likewise.
2752
2753 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
2754
2755         PR middle-end/26022
2756         Revert:
2757         PR middle-end/24437
2758         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
2759         with a call expr to ...
2760         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
2761
2762 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
2763
2764         * tree-vrp.c (extract_range_from_assert): Remove special
2765         handling for types with super-types.
2766
2767 2006-03-01  Ben Elliston  <bje@au.ibm.com>
2768
2769         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
2770         and powerpc64-*-linux* configurations.
2771         * config/t-dfprules: New file.
2772
2773         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
2774         Compile dfp-bit.c from the source directory using -DWIDTH and
2775         $DFP_CFLAGS to control the compilation of that file, rather than
2776         generating width-specific versions in the build directory.
2777         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
2778         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
2779
2780 2006-02-28  Zack Weinberg  <zackw@panix.com>
2781
2782         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
2783         continues to work.
2784
2785 2006-02-28  Eric Christopher  <echristo@apple.com>
2786
2787         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
2788         Set up IN_LIBGCC definition of TARGET_64BIT.
2789         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
2790
2791 2006-02-28  Roger Sayle  <roger@eyesopen.com>
2792
2793         PR middle-end/14752
2794         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
2795         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
2796         cases via the construction of "expr != 0".
2797
2798 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
2799
2800         * alias.c (alias_invariant, alias_invariant_size): Remove.
2801         (record_base_value): Remove.
2802         (memrefs_conflict_p): Don't look at alias_invariant.
2803         (end_alias_analysis): Don't free it.
2804         * alias.h (record_base_value): Remove prototype.
2805
2806 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
2807             Adam Nemet  <anemet@caviumnetworks.com>
2808
2809         * rtl.h (truncated_to_mode): Declare it.
2810         (struct rtl_hooks): Add reg_truncated_to_mode hook.
2811         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
2812         (RTL_HOOKS_INITIALIZER): Include it.
2813         * rtlhooks.c (reg_truncated_to_mode_general): New function.
2814         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
2815         reg_truncated_to_mode.
2816         * rtlanal.c (truncated_to_mode): Define it.
2817         * simplify-rtx.c (simplify_unary_operation_1): Use it.
2818
2819 2006-02-28  Jeff Law  <law@redhat.com>
2820
2821         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
2822         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
2823         the range allowed by TYPE_PRECISION.
2824
2825         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
2826
2827 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
2828
2829         PR tree-optimization/26419
2830         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
2831         values of n.
2832
2833 2006-02-27  Zack Weinberg  <zackw@panix.com>
2834
2835         * doc/md.texi: Fix typo in previous change.
2836
2837 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
2838
2839         * df.c: Remove.
2840
2841 2006-02-27  Zack Weinberg  <zackw@panix.com>
2842
2843         * rtl.def (define_constraint, define_register_constraint)
2844         (define_memory_constraint, define_address_constraint): New MD forms.
2845         * gensupport.c (process_rtx): Put define_constraint etc on the
2846         predicate queue.
2847         * genpreds.c (process_define_predicate): Adjust comment.  Validate
2848         the name, and call validate_exp to validate the expression.
2849         (mark_mode_tests, write_extract_subexp): Can assume correct input.
2850         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
2851         all callers changed.
2852         (validate_exp, needs_variable, struct constraint_data)
2853         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
2854         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
2855         (const_dbl_constraints, constraint_max_namelen)
2856         (have_register_constraints, have_memory_constraints)
2857         (have_address_constraints, have_address_constraints)
2858         (have_extra_constraints, have_const_int_constraints)
2859         (have_const_dbl_constraints, mangle, add_constraint)
2860         (process_define_constraint, process_define_register_constraint)
2861         (write_enum_constraint_num, write_lookup_constraint)
2862         (write_insn_constraint_len, write_regclass_for_constraint)
2863         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
2864         (write_insn_extra_memory_constraint)
2865         (write_insn_extra_address_constraint)
2866         (write_satisfies_constraint_fns): New.
2867         (write_tm_preds_h): If we have new-style constraint definitions,
2868         prototype the functions generated from them, and define the
2869         old constraint interface (still used by generic code) in terms of
2870         those functions.
2871         (write_insn_preds_c): If we have new-style constraint definitions,
2872         generate all relevant functions from those definitions.
2873         (main): Handle define_constraint etc.
2874         * genoutput.c (struct constraint_data, indep_constraints)
2875         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
2876         (mdep_constraint_len): New data structures and functions, defined
2877         #ifdef USE_MD_CONSTRAINTS.
2878         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
2879         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
2880         use new logic to validate operand constraints against constraint
2881         definitions.
2882         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
2883         defined.
2884         * defaults.h: If none of the old-style constraint macros are
2885         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
2886         old-style macros; and poison REG_CLASS_FROM_LETTER,
2887         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
2888         EXTRA_CONSTRAINT.
2889         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
2890         * doc/md.texi: Document new constraint-definition mechanism and the
2891         C interface it provides.  Remove references to old mechanism
2892         elsewhere in the document.
2893         (Machine Constraints): Use pathnames relative to gcc directory,
2894         i.e. config/ARCH/FILE.  Change i386 section to refer to
2895         config/i386/predicates.md; update that section to match docstrings.
2896         * doc/tm.texi: Move all documentation of the old constraint-
2897         definition macros to their own section, clearly mark as obsolete.
2898
2899         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
2900         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
2901         definitions.
2902         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
2903         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
2904         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
2905         constraint strings.
2906         (splits and peepholes): Use satisfies_constraint_*.
2907         * config/i386/i386.c (memory_address_length)
2908         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
2909
2910 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
2911
2912         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
2913         scalar operation to be put back into the loop.
2914
2915 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
2916
2917         PR other/26208
2918         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
2919         (extract_cie_info): Handle S flag in augmentation string.
2920         (execute_cfa_program): If context->signal_frame, execute also
2921         fs->pc == context->ra instructions.
2922         (uw_frame_state_for): If context->signal_frame, don't subtract one
2923         from context->ra to find FDE.
2924         (uw_update_context_1): Set context->signal_frame to
2925         fs->signal_frame.
2926         (_Unwind_GetIPInfo): New function.
2927         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
2928         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
2929         of _Unwind_GetIP.
2930         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
2931         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
2932         * unwind-compat.c (_Unwind_GetIPInfo): New function.
2933         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
2934         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
2935         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
2936         * config/i386/linux-unwind.h (x86_fallback_frame_state,
2937         x86_64_fallback_frame_state): Set fs->signal_frame.
2938         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
2939         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
2940         (frob_update_context): Likewise.  Workaround missing S flag in
2941         Linux 2.6.12 - 2.6.16 kernel vDSOs.
2942         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
2943         Remove the psw_addr + 1 hack.
2944
2945 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
2946
2947         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
2948         with aggregates here.
2949         (find_func_aliases): Remove code for &<aggregate> from here.
2950
2951 2006-02-26  Roger Sayle  <roger@eyesopen.com>
2952
2953         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
2954         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
2955         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
2956         as (X & C) ne/eq 0.
2957
2958 2006-02-26  Roger Sayle  <roger@eyesopen.com>
2959
2960         PR middle-end/19983
2961         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
2962
2963 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
2964
2965         * opts.c (decode_options): Do not handle flag_strength_reduce.
2966         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
2967         and OPT_fstrength_reduce.
2968         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
2969         flag_prefetch_loop_arrays for being nonzero.
2970         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
2971         no-ops.
2972         (fprefetch-loop-arrays-rtl): Removed.
2973         (flag_prefetch_loop_arrays): Do not specify the value.
2974
2975         * doc/passes.texi: Update documentation of loop optimizer
2976         passes.
2977         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
2978         -frerun-loop-opt): Remove.
2979
2980 2006-02-26  Richard Guenther  <rguenther@suse.de>
2981
2982         PR tree-optimization/26421
2983         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
2984         in function calls that are ADDR_EXPRs as using the whole structure.
2985
2986 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
2987
2988         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
2989         * tree-pass.h (pass_loop_optimize): Remove.
2990         * passes.c (pass_loop_optimize): Never run it.
2991         * toplev.c (backend_init): Don't call init_loop.
2992         * opts.c (flag_loop_optimize_set): Remove.
2993         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
2994         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
2995         the old RTL loop optimizer when profiling enabled.
2996         * predict.c (tree_estimate_probability): Always strip builtin_expect.
2997         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
2998         pre-headers for the sake of the old RTL loop optimizer.
2999         * Makefile.in: Remove all references to loop.o.
3000
3001         * doc/invoke.texi: Remove all references to -floop-optimize
3002         and -frerun-loop-opt.
3003
3004 2006-02-26  Zack Weinberg  <zackw@panix.com>
3005
3006         * doc/md.texi (Machine Constraints): Refer to all files with paths
3007         relative to gcc directory (i.e. config/CPU/file).  Add missing
3008         @table @code ... @end table to M32C subsection.
3009
3010 2006-02-26  Roger Sayle  <roger@eyesopen.com>
3011
3012         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
3013         (X & 1) == 0.
3014         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
3015
3016 2006-02-26  Roger Sayle  <roger@eyesopen.com>
3017             James A. Morrison  <phython@gcc.gnu.org>
3018
3019         PR middle-end/21137
3020         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
3021         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
3022         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
3023         signedness of the shift operation.
3024
3025 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
3026
3027         PR tree-optimization/26359
3028         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
3029
3030 2006-02-25  Roger Sayle  <roger@eyesopen.com>
3031
3032         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
3033         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
3034         as X == 0, and some symmetry related transformations.
3035         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
3036
3037 2006-02-25  Roger Sayle  <roger@eyesopen.com>
3038
3039         PR middle-end/23673
3040         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
3041         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
3042         symmetry related transformations.  Fold (X^C1) == C2 as
3043         X == (C1^C2).
3044
3045 2006-02-25  Juergen Weigert  <jw@suse.de>
3046         Richard Guenther  <rguenther@suse.de>
3047
3048         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
3049
3050 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
3051
3052         * combine.c (gen_lowpart_or_truncate): Call
3053         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
3054
3055 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
3056
3057         * doc/invoke.texi: Move -fopenmp description to "Options for
3058         Code Generation".
3059         Remove reference to -lgomp.
3060
3061 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
3062
3063         * doc/install.texi: Require GNU tar version 1.14.
3064
3065 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
3066
3067         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
3068         * doc/invoke.texi (C++ Dialect Options): Document
3069         -fno-use-cxa-get-exception-ptr.
3070         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
3071         * configure: Regenerate.
3072         * c.opt (fuse-cxa-get-exception-ptr): New.
3073         * c-opts.c (c_common_handle_option): Handle
3074         OPT_fuse_cxa_get_exception_ptr.
3075         * c-common.c (flag_use_cxa_atexit): Update documentation.
3076         (flag_use_cxa_get_exception_ptr): New.
3077         * c-common.h (flag_use_cxa_get_exception_ptr): New.
3078         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
3079         documentation.
3080         (C_COMMON_OVERRIDE_OPTIONS): New.
3081
3082 2006-02-24  Roger Sayle  <roger@eyesopen.com>
3083
3084         PR middle-end/24952
3085         * combine.c (try_combine): Explicitly check whether GET_CODE is
3086         a SET or a CLOBBER, instead on checking that it isn't a USE.
3087
3088 2006-02-24  Roger Sayle  <roger@eyesopen.com>
3089
3090         * fold-const.c (fold_comparison): New subroutine of fold_binary
3091         containing transformations common to both the equality and
3092         ordering relational operators, factored out of fold_binary.
3093         (fold_binary): Separate out the equality operators (EQ_EXPR
3094         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
3095         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
3096         transformations common to both.
3097         (fold_div_compare): Fix latent bugs in the previously unreachable
3098         LT_EXPR and GE_EXPR cases.
3099
3100 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
3101
3102         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
3103         decl libname for clog to __clog on AIX.
3104
3105         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
3106
3107 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
3108
3109         PR target/26453
3110         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
3111         output traceback table for thunks.  Localise rs6000_stack_info call.
3112
3113 2006-02-23  Roger Sayle  <roger@eyesopen.com>
3114             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
3115
3116         * gthr-posix.h (__gthrw): Fix typo in comment.
3117
3118 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
3119
3120         * doc/cpp.texi (Character sets): Document that we do support
3121         input files to be in any character set.
3122
3123 2006-02-23  Jeff Law  <law@redhat.com>
3124
3125         * tree.h (PHI_ARG_NONZERO): Remove.
3126         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
3127         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
3128         node to the new node.
3129
3130         PR tree-optimization/26425
3131         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
3132         min/max, then assume its varying.
3133
3134 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
3135
3136         PR rtl-optimization/26316
3137         * rtlanal.c (enum may_trap_p_flags): New.
3138         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
3139         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
3140         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
3141         (may_trap_after_code_motion_p): New function.
3142         * loop-invariant.c (find_identical_invariants): Fix dump formating.
3143         (find_invariant_insn): Use may_trap_after_code_motion_p.
3144         * rtl.h (may_trap_after_code_motion_p): Declare.
3145
3146 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
3147
3148         * emit-rtl.c (immed_double_const): Cleanup.
3149
3150 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
3151
3152         Fix PR tree-optimization/26376
3153         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
3154         remove assert.
3155
3156 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
3157
3158         PR middle-end/26412
3159         * gimplify.c (omp_add_variable): Guard variable size decl test with
3160         DECL_SIZE (decl) check.
3161
3162 2006-02-23  Richard Guenther  <rguenther@suse.de>
3163
3164         PR middle-end/26439
3165         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
3166         like aggregate types.
3167
3168 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
3169
3170         * configure.ac: Add --with{,out}-long-double-128 configure option.
3171         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
3172         * configure: Rebuilt.
3173         * config.in: Rebuilt.
3174         * doc/install.texi (Options specification): Document
3175         --with-long-double-128.
3176
3177         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
3178         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
3179         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
3180         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
3181
3182 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
3183
3184         * config/s390/s390.c (override_options): Handle
3185         TARGET_DEFAULT_LONG_DOUBLE_128.
3186
3187         * config/alpha/alpha.c (override_options): Handle
3188         TARGET_DEFAULT_LONG_DOUBLE_128.
3189
3190         * config/sparc/sparc.c (sparc_override_options): Handle
3191         TARGET_DEFAULT_LONG_DOUBLE_128.
3192
3193 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
3194
3195         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
3196         (real-install-headers-tar, real-install-headers-cpio)
3197         (real-install-headers-cp): New targets.
3198
3199 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
3200
3201         * tree.h (variable_section): Delete.
3202         * varasm.c (variable_section): Delete.
3203
3204 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
3205
3206         * install.texi: Add notes on install.texi2html.
3207         (Building in parallel): Do not use footnotes.
3208
3209 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
3210
3211         PR libgomp/26234
3212         * doc/install.texi (Configuration): Document --disable-libgomp.
3213
3214 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
3215
3216         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
3217
3218 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
3219
3220         * config/i386/sse.md (vec_extractv2df_1_sse): New.
3221         (vec_extractv2df_0_sse): New.
3222
3223 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
3224
3225         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
3226         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
3227         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
3228         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
3229         to the result of the expression.
3230         (def_cfa_1): Adjust.
3231         (frame_pointer_cfa_offset): Rename to...
3232         (frame_pointer_fb_offset): ... this.  Adjust all uses.
3233         (convert_cfa_to_loc_list): Rename to...
3234         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
3235         Pass it on to build_cfa_loc.
3236         (compute_frame_pointer_to_cfa_displacement): Rename to...
3237         (compute_frame_pointer_to_fb_displacement): ... this.  New
3238         offset parameter.  Use it in computation.
3239         (gen_subprogram_die): Compute cfa_fb_offset with the new
3240         macro, and use it to compute the fb loc list and the
3241         displacement.
3242
3243 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
3244
3245         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
3246         replaced with register_operand.
3247         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
3248         non-DREG is expensive.
3249         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
3250         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
3251         involving memory.
3252
3253 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
3254
3255         * doc/install.texi2html: Use set -e.
3256
3257 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
3258
3259         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
3260         (ASM_OUTPUT_SHARED_LOCAL): Delete.
3261         * doc/invoke.texi (-fshared-data): Delete.
3262         * common.opt (fshared-data): Delete.
3263         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
3264         (assemble_static_space): Remove #if 0 code.
3265         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
3266         (ASM_OUTPUT_SHARED_LOCAL): Poison.
3267         * config/cris/cris.h: Remove FIXME.
3268
3269 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
3270
3271         * doc/sourcebuild.texi (Front End Directory): No more double-colon
3272         hooks.
3273
3274 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
3275
3276         PR middle-end/26379
3277         * combine.c (simplify_shift_const_1): Disable nested shifts
3278         optimization for vector shifts.
3279
3280 2006-02-20  Roger Sayle  <roger@eyesopen.com>
3281
3282         PR tree-optimization/26361
3283         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
3284         of unsigned integer types.
3285
3286 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
3287
3288         * tree-chrec.c (eq_evolutions_p): New.
3289         * tree-chrec.h (eq_evolutions_p): Declared.
3290         * tree-data-ref.c: Fix formatting.
3291         (datadep_stats, dependence_stats): New.
3292         (gcd): Moved...
3293         (print_direction_vector): New.
3294         (dump_data_dependence_relation): Use print_direction_vector.
3295         (object_analysis, create_data_ref): Handle COMPONENT_REF.
3296         (compute_subscript_distance): Static.
3297         (initialize_data_dependence_relation): Static.  Get the number
3298         of loops surrounding the references from the callers, and initialize
3299         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
3300         base_object_differ_p analyzers.
3301         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
3302         compute_overlap_steps_for_affine_1_2,
3303         analyze_subscript_affine_affine): Count the classified dependences.
3304         Print a message when a test failed.
3305         (can_use_analyze_subscript_affine_affine): New.
3306         (analyze_siv_subscript): Compute the data dependences on symbolic
3307         scevs that verify can_use_analyze_subscript_affine_affine.
3308         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
3309         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
3310         Handle symbolic scevs.
3311         (analyze_overlapping_iterations): Let symbolic affine scevs to be
3312         analyzed.
3313         (subscript_dependence_tester): Moved...
3314         (build_classic_dist_vector, build_classic_dir_vector): Don't use
3315         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
3316         DDR_SIZE_VECT instead of getting it in parameter.
3317         (subscript_dependence_tester): ... here.  Take as a parameter
3318         loop_nest_depth.  Call build_classic_dist_vector and
3319         build_classic_dir_vector.
3320         (compute_affine_dependence): Update subscript_dependence_tester
3321         parameters.  Update datadep_stats counters.  Call
3322         compute_subscript_distance.
3323         (compute_self_dependence): Save the dist and dir vectors.  Call
3324         compute_subscript_distance.
3325         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
3326         (compute_all_dependences): Reorder parameters as they were before
3327         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
3328         compute_subscript_distance.  Update the use of
3329         compute_affine_dependence and initialize_data_dependence_relation.
3330         (find_data_references_in_loop): Handle COMPONENT_REF.
3331         (compute_data_dependences_for_loop): Initialize dependence_stats.
3332         Don't call build_classic_dist_vector and build_classic_dir_vector.
3333         Update the parameters of initialize_data_dependence_relation and
3334         compute_all_dependences.  Print the statistics from datadep_stats.
3335         (analyze_all_data_dependences): Static.  Not used until the pass for
3336         checking the data dependences is contributed.
3337         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
3338         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
3339         (initialize_data_dependence_relation, compute_affine_dependence,
3340         analyze_all_data_dependences, compute_subscript_distance): Removed.
3341         (print_direction_vector): New.
3342         * lambda.h (gcd): ... here.
3343         (lambda_vector_gcd): Moved here from gcd_vector.
3344         * lambda-code.c (gcd, gcd_vector): Removed.
3345         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
3346         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
3347
3348 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
3349
3350         * ipa-type-escape.c: Tidy some comments and white space.
3351         * tree-ssa-operands.c: Likewise.
3352
3353 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
3354
3355         PR tree-opt/25879
3356         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
3357         (dump_decl_name): Do not walk the decl tree chains.
3358         * tree-pass.h (TDF_CHAIN): Remove.
3359
3360 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
3361
3362         * Makefile.in (C): Remove
3363         (PROTO): Remove
3364         (.PHONY): Remove C and PROTO
3365
3366 2006-02-20  Roger Sayle  <roger@eyesopen.com>
3367
3368         PR middle-end/26236
3369         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
3370         deprecated CHAR_TYPE tree code.
3371
3372 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
3373
3374         * configure.ac (target_list): Add install-info, dvi, html.
3375         * configure: Regenerate.
3376
3377         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
3378         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
3379         treelang/Make-lang.in: Do not use double-colon rules.
3380
3381 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
3382
3383         * tree.h (struct tree_memory_tag): Add is_used_alone member.
3384         (TMT_USED_ALONE): New macro.
3385         * tree-pass.h (PROP_tmt_usage): New property.
3386         (TODO_update_tmt_usage): New todo.
3387         * tree-ssa-alias.c (updating_used_alone): New variable.
3388         (recalculate_used_alone): New function.
3389         (compute_may_aliases): Set updating_used_alone, call
3390         recalculate_used_alone.
3391         * tree-sra.c (pass_sra): Note that this pass destroys
3392         PROP_tmt_usage, and add TODO_update_tmt_usage.
3393         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
3394         * tree-flow.h (updating_used_alone): Prototype.
3395         (recalculate_used_alone): Ditto.
3396         * passes.c (execute_todo): Add code to set updating_used_alone,
3397         and call recalculate.
3398         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
3399         for clobber if used alone, and add assert to verify used_alone
3400         status.
3401
3402 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
3403
3404         * config/s390/s390.c (legitimize_pic_address): Assertions checking
3405         for non tls symbols added.
3406         (legitimize_address): Do nothing for PLUS expressions if one of the
3407         addends is a tls symbol reference.
3408
3409 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
3410
3411         PR bootstrap/25476
3412
3413         * Makefile.in (LDFLAGS): Define from autoconf substitution.
3414
3415         * Makefile.in (BOOTSTRAPPING): New.
3416         (quickstrap): New definition if BOOTSTRAPPING=yes.
3417
3418         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
3419         * configure.ac: Substitute all_selected_languages with the languages
3420         that were configured.  For all the other variables except
3421         lang_specs_files, include all the languages in the tree.
3422         * configure: Regenerate.
3423
3424         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
3425         if there is one.  Run the commands to run fixincludes in the same
3426         subshell.
3427
3428         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
3429         * doc/install.texi: Document exact conventions for searching target tools.
3430         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
3431         something more about building an Ada cross-compiler.  Don't list GNU Make
3432         requirements which affect all platforms.
3433
3434 2006-02-19  Roger Sayle  <roger@eyesopen.com>
3435
3436         PR middle-end/19543
3437         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
3438         only equivalent if the have both the same mode and precision.
3439
3440 2006-02-20  Ben Elliston  <bje@au.ibm.com>
3441
3442         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
3443
3444 2006-02-19  Roger Sayle  <roger@eyesopen.com>
3445             Steven Bosscher  <stevenb.gcc@gmail.com>
3446
3447         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
3448         constant pool references to identify stack mode constants.
3449         * rtlanal.c (constant_pool_constant_p): New predicate to check
3450         whether operand is a floating point constant in the pool.
3451         * rtl.h (constant_pool_constant_p): Prototype here.
3452         * loop.c (scan_loop): Avoid hoisting constants from the constant
3453         pool on STACK_REGS targets.
3454         (load_mems): Likewise.
3455         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
3456         loads into x87 registers expensive in terms of register pressure.
3457
3458 2006-02-19  Roger Sayle  <roger@eyesopen.com>
3459
3460         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
3461         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
3462
3463 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
3464
3465         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
3466         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
3467
3468 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
3469
3470         * doc/invoke.texi: Document -fipa-pta.
3471         * common.opt: Add ipa-pta option.
3472         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
3473         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
3474         (do_ds_constraint): Ditto.
3475         (get_constraint_for): Only add to referenced_vars if
3476         referenced_vars exists.
3477         (insert_into_field_list): Rewrite to do this unsorted.
3478         (insert_into_field_list_sorted): Rename old insert_into_field_list
3479         to this.
3480         (create_function_info_for): Use insert_into_field_list_sorted.
3481         (create_variable_info_for): Rewrite so it uses unsorted version,
3482         since the field list is sorted.
3483         (intra_create_variable_infos): Only add to referenced_vars if
3484         referenced_vars exists.
3485         (ipa_pta_execute): Init heapvars, and delete when done.
3486         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
3487
3488 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3489
3490         * doc/install.texi: Add missing `@samp'.
3491
3492 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
3493
3494         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
3495         Use the arguments.
3496
3497 2006-02-18  Mark Wielaard  <mark@klomp.org>
3498
3499         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
3500         who added new 4.1 features, bug fixes and integration support.
3501
3502 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
3503
3504         PR target/26350
3505         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
3506         MEM for ABI_V4 pic.
3507
3508 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
3509
3510         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
3511         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
3512         (copy_insn_1): Likewise.  Don't copy each field individually.
3513         Reindent.
3514         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
3515         of RTX_SIZE.
3516         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
3517         * rtl.c (rtx_size): Rename variable to...
3518         (rtx_code_size): ...this.
3519         (rtx_size): New function.
3520         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
3521         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
3522         Reindent.
3523         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
3524         * rtl.h (rtx_code_size): New variable.
3525         (rtx_size): Change from a variable to a function.
3526         (RTX_SIZE): Rename to...
3527         (RTX_CODE_SIZE): ...this.
3528
3529         PR target/9703
3530         PR tree-optimization/17106
3531         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
3532         (Anchored Addresses): New section.
3533         * doc/invoke.texi (-fsection-anchors): Document.
3534         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
3535         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
3536         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
3537         * hooks.c (hook_bool_mode_rtx_false): New function.
3538         * hooks.h (hook_bool_mode_rtx_false): Declare.
3539         * gengtype.c (create_optional_field): New function.
3540         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
3541         SYMBOL_REF_IN_BLOCK_P is true.
3542         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
3543         (min_anchor_offset, max_anchor_offset): Likewise.
3544         (use_anchors_for_symbol_p): New hook.
3545         * toplev.c (compile_file): Call output_object_blocks.
3546         (target_supports_section_anchors_p): New function.
3547         (process_options): Check that -fsection-anchors is only used on
3548         targets that support it and when -funit-at-a-time is in effect.
3549         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
3550         if the decl doesn't have one.
3551         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
3552         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
3553         of force_const_mem through use_anchored_address.
3554         (expand_expr_constant): New function.
3555         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
3556         calling expand_expr for INDIRECT_REF.
3557         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
3558         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
3559         * expr.h (use_anchored_address): Declare.
3560         * loop-unroll.c: Don't declare rtx vectors here.
3561         * explow.c: Include output.h.
3562         (validize_mem): Call use_anchored_address.
3563         (use_anchored_address): New function.
3564         * common.opt (-fsection-anchors): New switch.
3565         * varasm.c (object_block_htab, anchor_labelno): New variables.
3566         (hash_section, object_block_entry_eq, object_block_entry_hash)
3567         (use_object_blocks_p, get_block_for_section, create_block_symbol)
3568         (use_blocks_for_decl_p, change_symbol_section): New functions.
3569         (get_variable_section): New function, split out from assemble_variable.
3570         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
3571         use_blocks_for_decl_p say so.  Use change_symbol_section if the
3572         symbol has already been created.
3573         (assemble_variable_contents): New function, split out from...
3574         (assemble_variable): ...here.  Don't output any code for
3575         block symbols; just pass them to place_block_symbol.
3576         Use get_variable_section and assemble_variable_contents.
3577         (get_constant_alignment, get_constant_section, get_constant_size): New
3578         functions, split from output_constant_def_contents.
3579         (build_constant_desc): Create a block symbol if use_object_blocks_p
3580         says so.  Or into SYMBOL_REF_FLAGS.
3581         (assemble_constant_contents): New function, split from...
3582         (output_constant_def_contents): ...here.  Don't output any code
3583         for block symbols; just pass them to place_section_symbol.
3584         Use get_constant_section and get_constant_alignment.
3585         (force_const_mem): Create a block symbol if use_object_blocks_p and
3586         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
3587         (output_constant_pool_1): Add an explicit alignment argument.
3588         Don't switch sections here.
3589         (output_constant_pool): Adjust call to output_constant_pool_1.
3590         Switch sections here instead.  Don't output anything for block symbols;
3591         just pass them to place_block_symbol.
3592         (init_varasm_once): Initialize object_block_htab.
3593         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
3594         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
3595         (place_block_symbol, get_section_anchor, output_object_block)
3596         (output_object_block_htab, output_object_blocks): New functions.
3597         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
3598         (TARGET_ASM_OUT): Include it.
3599         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
3600         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
3601         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
3602         (TARGET_INITIALIZER): Include them.
3603         * rtl.c (rtl_check_failed_block_symbol): New function.
3604         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
3605         (block_symbol, object_block): New structures.
3606         (rtx_def): Add a block_symbol field to the union.
3607         (BLOCK_SYMBOL_CHECK): New macro.
3608         (rtl_check_failed_block_symbol): Declare.
3609         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
3610         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
3611         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
3612         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
3613         * output.h (output_section_symbols): Declare.
3614         (object_block): Name structure.
3615         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
3616         (default_use_anchors_for_symbol_p): Declare.
3617         * Makefile.in (RTL_BASE_H): Add vec.h.
3618         (explow.o): Depend on output.h.
3619         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
3620         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
3621         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
3622         (rs6000_use_blocks_for_constant_p): New function.
3623
3624 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3625
3626         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
3627
3628 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
3629
3630         PR tree-opt/25680
3631         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
3632         IMAGPART_EXPR.
3633
3634 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
3635
3636         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
3637         is_aliased.
3638         Update all users.
3639
3640 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
3641
3642         PR middle-end/26334
3643         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
3644         instead of DECL_REGISTER.
3645
3646 2006-02-18  Olivier Hainque  <hainque@adacore.com>
3647
3648         PR ada/13408
3649         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
3650
3651 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
3652
3653         PR target/24837
3654         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
3655         * opth-gen.awk: Handle Var and InverseMask together.
3656         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
3657         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
3658         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
3659         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
3660         used together.
3661         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
3662         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
3663         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
3664         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
3665         LINUX_DYNAMIC_LINKER): Define.
3666         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
3667         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
3668         TARGET_GLIBC.
3669         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3670         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
3671         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3672         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3673         (TARGET_C99_FUNCTIONS): Don't define.
3674         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
3675         GLIBC_DYNAMIC_LINKER.
3676         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
3677         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
3678         GLIBC_DYNAMIC_LINKER64): Define.
3679         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
3680         LINUX_DYNAMIC_LINKER64.
3681         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3682         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3683         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
3684         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3685         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3686         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3687         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
3688         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
3689         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
3690         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
3691         and LINUX_DYNAMIC_LINKER32.
3692         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3693         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3694         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
3695         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3696         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
3697         TARGET_GLIBC.
3698         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
3699         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
3700         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
3701         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
3702         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
3703         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
3704         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
3705         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
3706         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
3707         LINUX_DYNAMIC_LINKER): Define.
3708         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
3709         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
3710         GLIBC_DYNAMIC_LINKER64): Define.
3711         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
3712         LINUX_DYNAMIC_LINKER64.
3713         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3714         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3715         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
3716         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
3717         LINUX_DYNAMIC_LINKER): Define.
3718         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3719         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
3720         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
3721         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
3722         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
3723         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
3724         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
3725         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
3726         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
3727         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3728         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3729         * doc/invoke.texi (-muclibc): Remove caveat about supported
3730         targets.
3731
3732 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
3733
3734         * doc/cpp.texi (__TIMESTAMP__): Document.
3735
3736 2006-02-17  Roger Sayle  <roger@eyesopen.com>
3737
3738         PR middle-end/25600
3739         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
3740         C is one less than the width of X (and related transformations).
3741         * simplify-rtx.c (simplify_unary_operation_1): Transform
3742         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
3743         depending on STORE_FLAG_VALUE, were C is one less then the
3744         width of X.
3745
3746 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
3747
3748         Fix PR tree-optimization/26341
3749         * tree-ssa-operands.c (add_virtual_operand): Remove assert
3750         about NAME_MEMORY_TAG's.
3751
3752 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3753
3754         PR target/26255
3755         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
3756         with hardware float support, and software float support.  Add fcpy
3757         alternative to hardware patterns.  Add alternatives to copy between
3758         general and floating-point registers to the 32-bit pattern.
3759         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
3760         secondary reload to load a QI or HI mode constant into a floating
3761         point register.
3762         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
3763         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
3764
3765 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
3766
3767         PR target/26272
3768         * config/rs6000/darwin.md (load_macho_picbase_si): Add
3769         pc to the pattern.
3770         (load_macho_picbase_di): Likewise.
3771
3772 2006-02-16  Jeff Law  <law@redhat.com>
3773
3774         * tree-vrp.c (set_value_range_to_nonnegative): New function.
3775         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
3776         (ssa_name_nonzero_p): Likewise.
3777         (get_value_range): Return NULL if VRP is not running.
3778         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
3779         VRP routines do not discover a range.
3780         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
3781         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
3782         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
3783         (tree_expr_nonnegative_p): Similarly.
3784         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
3785         (restore_nonzero_vars_to_original_value): Remove.
3786         (unsafe_associative_fp_binop): Remove.
3787         (tree_ssa_dominator_optimize): Remove initialization and
3788         finalization of nonzero_vars and nonzero_vars_stack.
3789         (dom_opt_initialize_block): No longer push marker on
3790         nonzero_vars_stack.
3791         (dom_opt_finalize_block): No longer call
3792         restore_nonzero_vars_to_original_value.
3793         (record_equivalences_from_phis): No longer look for
3794         nonzero PHI arguments.
3795         (cprop_into_successor_phis): No longer propagate nonzero
3796         property into PHI arguments.  Lose unused argument.  Caller
3797         updated.
3798         (record_equivalences_from_stmt): No longer record nonzero
3799         values for SSA_NAMEs.
3800         (lookup_avail_expr): No longer use nonzero_vars.
3801
3802         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
3803         for sizetype when sizetype is unsigned.
3804
3805 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
3806
3807         PR rtl-optimization/25603
3808         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
3809         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
3810         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
3811         with new meaning of SETS.
3812
3813 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
3814
3815         PR target/20353
3816         PR target/24578
3817         PR target/24837
3818         * config/linux.opt: New file.
3819         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
3820         LINUX_DYNAMIC_LINKER): Define.
3821         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
3822         * config.gcc (*-*-linux*): Define extra_options.
3823         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
3824         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
3825         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
3826         GLIBC_DYNAMIC_LINKER.
3827         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
3828         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3829         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3830         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3831         * doc/invoke.texi (GNU/Linux Options): New section.
3832
3833 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
3834
3835         * config/sparc/sparc.md (setjmp): Rewrite.
3836         (setjmp_32): Delete.
3837         (setjmp_64): Likewise.
3838
3839 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
3840
3841         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
3842          previous change.
3843
3844 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
3845
3846         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
3847         read-write uses.
3848
3849 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
3850
3851         PR rtl-optimization/26296
3852         * Makefile.in (loop-invariant.c): Add except.h dependency.
3853         * loop-invariant.c: Include except.h.
3854         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
3855
3856 2005-02-16  Paul Brook  <paul@codesourcery.com>
3857
3858         * reload1.c (emit_reload_insns): Invalidate dead input registers used
3859         for reloads.
3860
3861 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
3862
3863         PR rtl-optimization/25636
3864         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
3865         when deciding whether an insn is an initializing insn.
3866
3867 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
3868
3869         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
3870         (tree_code_size): Ditto.
3871         * tree.h (struct tree_memory_tag): Remove parent_var.
3872         (struct tree_struct_field_tag): New.
3873         (SFT_OFFSET): New.
3874         (SFT_SIZE): New.
3875         (union tree_node): Add sft member.
3876         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
3877         specially here.
3878         (create_sft): Add size and offset argument, set SFT_OFFSET and
3879         SFT_SIZE.
3880         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
3881         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
3882         * tree-flow-inline.h (get_subvar_at): Update for
3883         SFT_OFFSET/SFT_SIZE.
3884         (var_can_have_subvars): Ditto.
3885         (overlap_subvar): Ditto.
3886         * print-tree.c (print_node): Print out interesting things for
3887         SFT's.
3888         * tree-flow.h (struct subvar): Remove offset and size members.
3889         * tree-ssa-operands.c (get_expr_operands): Update for
3890         get_indirect_ref_operands changes.
3891         (get_indirect_ref_operands): Call add_virtual_operand instead of
3892         add_stmt_operand.  Only recurse on base var if requested.
3893         (access_can_touch_variable): New function.
3894         (add_stmt_operand): Split virtual operand handling into ...
3895         (add_virtual_operand): Here.  Add offset, size, and for_clobber
3896         arguments.  Prune alias sets.
3897         (add_call_clobber_ops): Call add_virtual_operand.
3898
3899 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
3900
3901         PR middle-end/26300
3902         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
3903
3904         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
3905         than TREE_CODE as index into omp_clause_num_ops array.
3906
3907 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
3908
3909         PR rtl-optimization/26184
3910         * modulo-sched.c (generate_reg_moves): Free bitmap vector
3911         uses_of_defs.
3912         * modulo-sched.c (sms_schedule): Free g_arr pointer.
3913         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
3914         must_precede, must_follow and tobe_scheduled.
3915
3916         PR other/26147
3917         * opts.c (common_handle_option): Free new_option pointer.
3918         * df-core.c (df_analyze): Free postorder pointer.
3919
3920 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
3921
3922         * Makefile.in: Fix the examples about the use of stamps
3923
3924 2006-02-15  Michael Matz  <matz@suse.de>
3925
3926         PR middle-end/22275
3927
3928         * stor-layout.c (layout_decl): Zero-width bitfields aren't
3929         influenced by maximum_field_alignment or DECL_PACKED.
3930         (update_alignment_for_field): Ditto.
3931         (place_field): Ditto.
3932         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
3933         this behaviour.
3934
3935 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
3936
3937         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
3938         (debug_flow_info): Pass it.
3939         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
3940         * bb-reorder.c (reorder_basic_blocks): Likewise.
3941         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
3942         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
3943         * flow.c (life_analysis, recompute_reg_usage): Likewise.
3944         * gcse.c (gcse_main, bypass_jumps): Likewise.
3945         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
3946         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
3947         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
3948         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
3949         * rtl.h (dump_flow_info): Adjust prototype.
3950         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
3951         * var-tracking.c (variable_tracking_main): Likewise.
3952         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
3953         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
3954         options.
3955
3956 2006-02-15  Marcin Dalecki <martin@dalecki.de>
3957
3958         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
3959         construction.
3960
3961 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
3962
3963         PR tree-optimization/26209
3964         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
3965         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
3966         eh edges.
3967         * tree-cfg.c (replace_uses_by): Do not alter cfg.
3968
3969 2006-02-14  Roger Sayle  <roger@eyesopen.com>
3970
3971         PR middle-end/23670
3972         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
3973         (X,Y) and the corresponding symmetry related transformations.
3974         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
3975         (X,Y) and its symmetry related transformations.
3976
3977 2006-02-14  Roger Sayle  <roger@eyesopen.com>
3978
3979         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
3980         and GEU.
3981
3982 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
3983
3984         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
3985
3986 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
3987
3988         PR bootstrap/26053
3989         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
3990         support COMDAT group.
3991         * configure: Regenerate.
3992
3993 2006-02-14  Roger Sayle  <roger@eyesopen.com>
3994
3995         PR middle-end/26279
3996         PR middle-end/26280
3997         PR middle-end/26283
3998         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
3999
4000 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
4001
4002         Fix PR tree-optimization/26260
4003
4004         * doc/invoke.texi (max-fields-for-field-sensitive): Document
4005         param.
4006         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
4007         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
4008         * tree-ssa-structalias.c (create_variable_info_for): Use
4009         MAX_FIELDS_FOR_FIELD_SENSITIVE.
4010
4011 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
4012
4013         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
4014         Document.
4015         * tree-ssa-loop-niter.c (number_of_iterations_ne,
4016         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
4017         of the ending condition.
4018         * tree-ssa-loop-manip.c: Include params.h.
4019         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
4020         tree_unroll_loop): New functions.
4021         * tree-pass.h (pass_loop_prefetch): Declare.
4022         * loop.c (rest_of_handle_loop_optimize): Test for
4023         -fprefetch-loop-arrays-rtl.
4024         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
4025         * timevar.def (TV_TREE_PREFETCH): New timevar.
4026         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
4027         pass_loop_prefetch): New.
4028         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
4029         (cleanup_tree_cfg_loop): Call scev_reset.
4030         * common.opt (fprefetch-loop-arrays-rtl): Add.
4031         * tree-ssa-loop-prefetch.c: New file.
4032         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
4033         (new_temp_expr_table): Initialize expr_vars.
4034         (free_temp_expr_table): Cleanup expr_vars.
4035         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
4036         expressions from being merged into one.
4037         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
4038         (struct tree_niter_desc): Add control, bound and cmp fields.
4039         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
4040         Declare.
4041         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
4042         (tree-cfgcleanup.o): Add SCEV_H dependency.
4043         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
4044         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
4045
4046 2006-02-14  Richard Guenther  <rguenther@suse.de>
4047
4048         PR tree-optimization/26258
4049         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
4050         in PHI argument processing.
4051
4052 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
4053
4054         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
4055         new expression in the requested machine mode.
4056
4057 2006-02-13  Roger Sayle  <roger@eyesopen.com>
4058
4059         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
4060         directly, instead let do_compare_rtx_and_jump handle this for us.
4061         * expr.c (expand_expr_real_1): Likewise.
4062         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
4063         before do_jump_by_parts_greater.
4064         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
4065         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
4066
4067 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4068
4069         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
4070
4071 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
4072
4073         PR rtl-optimization/26235
4074         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
4075         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
4076         format.
4077
4078 2006-02-13  Jeff Law  <law@redhat.com>
4079
4080         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
4081         TRUTH_XOR_EPR.
4082
4083 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
4084
4085         PR middle-end/26092
4086         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
4087         twice if decl is a builtin.  When trying again, call get_callee_fndecl
4088         first to verify it is still a builtin.
4089
4090 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
4091
4092         * dwarf2out.c (base_type_die): Don't add AT_name here.
4093         (subrange_type_die): Don't add AT_name here.
4094         (modified_type_die): Rearrange code flow.  Do add AT_name here.
4095
4096 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
4097
4098         PR rtl-optimization/26247
4099         PR rtl-optimization/26248
4100         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
4101
4102 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
4103
4104         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
4105         * config/fixtfdi.c: Likewise.
4106         * config/fixunstfdi.c: Likewise.
4107         * config/floatditf.c: Likewise.
4108
4109 2006-02-13  Roger Sayle  <roger@eyesopen.com>
4110
4111         PR middle-end/24427
4112         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
4113         into (X,C2) if C1 is a subset of the bits of C2.  Transform
4114         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
4115         (X&(C1&~C2))|C2.
4116         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
4117
4118 2006-02-13  Josh Conner  <jconner@apple.com>
4119
4120         PR target/25376
4121         * varasm.c (function_section): Check for section name before
4122         calling select_section on targets that define
4123         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
4124         unlikely_text_section instead of hot_function_section if
4125         first_function_block_is_cold.
4126
4127 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
4128
4129         PR middle-end/25335
4130         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
4131
4132 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
4133
4134         PR rtl-optimization/26222
4135         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
4136         after tree->rtl expansion.
4137         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
4138         before passing it to emit_move_insn.
4139
4140 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
4141
4142         * doc/invoke.texi (-Write-strings): Document that it is enabled by
4143         default.
4144         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
4145         Clarify documentation.
4146         * c-common.h (warn_write_strings): Remove.
4147         * c-common.c (warn_write_strings): Likewise.
4148         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
4149         default for C++.
4150
4151 2006-02-12  Roger Sayle  <roger@eyesopen.com>
4152
4153         PR middle-end/25724
4154         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
4155         (do_jump_parts_zero_rtx): New function renamed from
4156         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
4157         (do_jump_parts_equality_rtx): New function split out from
4158         do_jump_parts_equality.  Old implementation renamed as above.
4159         Call do_jump_parts_zero_rtx if either operand is zero.
4160         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
4161         do all of the heavy lifting.
4162         (do_compare_rtx_and_jump): Handle multi-word comparisons by
4163         calling either do_jump_by_parts_greater_rtx or
4164         do_jump_by_parts_equality_rtx.
4165         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
4166         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
4167         moved to do_compare_rtx_and_jump, call it directly.
4168         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
4169         mode argument.  Call do_compare_rtx_and_jump.
4170         (emit_case_nodes): Update calls to do_jump_if_equal.
4171
4172 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
4173
4174         PR rtl-optimization/26225
4175         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
4176
4177 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
4178
4179         PR rtl-optimization/26232
4180         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
4181
4182 2006-02-11  Jason Merrill  <jason@redhat.com>
4183
4184         PR tree-opt/24365
4185         * tree-inline.c (declare_return_variable): Just don't use the
4186         modify target if it's a gimple complex reg and the return slot
4187         isn't.
4188
4189 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
4190
4191         * doc/contrib.texi: Update my entry.
4192
4193 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
4194
4195         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
4196
4197 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
4198
4199         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
4200         expensive.
4201
4202 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
4203
4204         * doc/invoke.texi (-floop-optimize2): Removed.
4205         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
4206         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
4207         Test flag_branch_on_count_reg only if HAVE_doloop_end.
4208         * common.opt (floop-optimize2): Removed.
4209         (fmove-loop-invariants): Enabled by default.
4210
4211 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
4212
4213         * tree-if-conv.c (combine_blocks): Free the result of
4214         get_loop_exit_edges.
4215
4216 2006-02-10  Jeff Law  <law@redhat.com>
4217
4218         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
4219
4220         PR tree-optimization/26213
4221         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
4222         loop trying to follow SSA_NAME_VALUE chains.
4223
4224 2006-02-10  Richard Guenther  <rguenther@suse.de>
4225
4226         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
4227         deal with structures that end in implicitly variable sized arrays.
4228
4229 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
4230
4231         PR rtl-optimization/24762
4232         * df-scan.c (df_bb_refs_record): Record correct registers defined on
4233         eh edges.
4234
4235 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
4236
4237         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
4238         (struct ivopts_data): Add regs_used field.
4239         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
4240         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
4241         instead of loop_data->regs_used;
4242         (free_loop_data): Do not free aux fields for loops.
4243         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
4244         and tree_ssa_iv_optimize_finalize.
4245
4246 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
4247
4248         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
4249
4250 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
4251
4252         PR target/26141
4253         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
4254         computing the effective result type.
4255
4256 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
4257
4258         PR inline-asm/16194
4259         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
4260         (tree_overlaps_hard_reg_set): Declare.
4261         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
4262         type and signature to match function type expected by walk_tree.
4263         (tree_overlaps_hard_reg_set): New function.
4264         (decl_conflicts_with_clobbers_p): Rename to:
4265         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
4266         Use tree_overlaps_hard_reg_set.  Changed caller.
4267         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
4268         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
4269         * cris.c (cris_md_asm_clobbers): Likewise.
4270
4271 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
4272
4273         * reload1.c (emit_input_reload_insns): Delete code that tries to
4274         inherit using find_equiv_reg.
4275
4276 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
4277
4278         * c-common.h (flag_const_strings): Don't declare.
4279         * c-common.c (flag_const_strings): Remove.
4280         * c.opt (fconst_strings): Remove.
4281         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
4282         <OPT_Wwrite_strings>: Don't set flag_const_strings.
4283         (c_common_init_options): Don't set flag_const_strings.
4284         * doc/invoke.texi (-fno-const-strings): Remove documentation.
4285
4286 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
4287
4288         * arm.md (tlobits_cbranch): New pattern.
4289         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
4290         testing a single bit.
4291
4292 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
4293
4294         PR tree-opt/26179
4295         * tree-ssa-pre.c (create_component_ref_by_pieces):
4296         Handle RETURN_DECL like VAR_DECL.
4297
4298 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
4299
4300         PR middle-end/26134
4301         * fold-const.c (fold_indirect_ref_1): Fold
4302         "*(foo *)&complexfoo" to "__real__ complexfoo"
4303         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
4304
4305 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
4306
4307         * tree-flow-inline.h (var_can_have_subvars):
4308         Volatile variables should not have subvariables.
4309
4310 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
4311
4312         PR 26180
4313         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
4314         multiplying unsigned values.
4315         Tidy comments.
4316
4317 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
4318
4319         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
4320
4321 2006-02-08  Jason Merrill  <jason@redhat.com>
4322
4323         PR c++/25979
4324         * tree.def: Elaborate on difference from MODIFY_EXPR.
4325         * doc/c-tree.texi (INIT_EXPR): Likewise.
4326         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
4327         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
4328         (gimplify_target_expr): Likewise.
4329         (gimplify_cond_expr): Remove target handling.
4330         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
4331         (gimplify_expr): Clobber it here.
4332         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
4333         Do return slot optimization if we have an INIT_EXPR.
4334
4335         PR tree-opt/24365
4336         * tree-inline.c (declare_return_variable): Also clear
4337         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
4338
4339         PR c++/16405
4340         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
4341
4342         PR middle-end/22439
4343         * gimplify.c (gimplify_one_sizepos): Fix typo.
4344
4345 2006-02-08  Jeff Law  <law@redhat.com>
4346
4347         PR tree-optimization/21417
4348         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
4349         across a backedge if the control statement at the end of the
4350         block is data dependent on other statements in the same block.
4351         (record_temporary_equivalences_from_stmts): Remove over-conservative
4352         test for threading across backedges.
4353
4354         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
4355         control statement, handle all three special cases in the same
4356         manner as they all have the same desired solution.  No longer
4357         special case edge flag updating when the post dominator is
4358         the exit block.
4359
4360 2006-02-08  Roger Sayle  <roger@eyesopen.com>
4361
4362         * tree.def (CHAR_TYPE): Remove.
4363         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
4364         * dwarf2out.c (base_type_die, is_base_type): Likewise.
4365         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
4366         (gen_string_type_die): Delete unreachable function.
4367
4368         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
4369         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
4370         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
4371         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
4372         * builtins.c (type_to_class): Likewise.
4373         * fold-const.c (fold_convert, build_range_check,
4374         merge_ranges): Likewise.
4375         * expr.c (count_type_elements): Likewise.
4376         * c-pretty-print.c (pp_c_type_specifier): Likewise.
4377         * stor-layout.c (layout_type): Likewise.
4378         * ipa-type-escape.c (type_to_consider): Likewise.
4379         * gimplify.c (omp_firstprivatize_type_sizes,
4380         gimplify_type_sizes): Likewise.
4381         * explow.c (promote_mode): Likewise.
4382         * tree-sra.c (is_sra_scalar_type): Likewise.
4383         * varasm.c (output_constant): Likewise.
4384         * tree-inline.c (remap_type_1): Likewise.
4385         * convert.c (convert_to_pointer, convert_to_real,
4386         convert_to_integer, convert_to_complex): Likewise.
4387
4388 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
4389
4390         * df-scan.c (df_def_record_1): A set destination may
4391         be a parallel regardless of mode.
4392
4393 2006-02-08  Roger Sayle  <roger@eyesopen.com>
4394
4395         PR target/22209
4396         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
4397         * config/mips/_tilib.c: Remove.
4398         * config/fixtfdi.c: New libgcc source file.
4399         * config/fixunstfdi.c: New source file.
4400         * config/floatditf.c: New source file.
4401         * config/floatunditf.c: New souce file.
4402         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
4403         files above instead of config/mips/_tilib.c.
4404         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
4405
4406 2006-02-08  Jeff Law  <law@redhat.com>
4407
4408         PR tree-optimization/26169
4409         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
4410         threading jumps.
4411
4412 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
4413
4414         * df.h (DF_REG_SIZE): Return the length of the initialized
4415         part of the array.
4416
4417 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
4418
4419         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
4420         __muldf3): Return a correctly signed zero.
4421
4422 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
4423
4424         * passes.c (register_one_dump_file): Accept the current properties
4425         instead of pass number.  Adjust call to dump_register.  Remove
4426         duplicated code.
4427         (register_dump_files): Now a wrapper around...
4428         (register_dump_files_1): ... this one.  Do not modify the pass
4429         structure.
4430         (next_pass_1): Cosmetic fix.
4431         (execute_todo): Keep second parameter only.  Use curr_properties
4432         instead of fetching it from the pass structure.  Check and set
4433         last_verified.
4434         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
4435         instead of fetching it from the pass structure.  Fix calls to
4436         execute_todo.  Update curr_properties and initialize .vcg RTL dump
4437         after running the pass.  Reset last_verified.
4438         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
4439         at the beginning.
4440         (FIRST_AUTO_NUMBERED_DUMP): New.
4441         (dump_register): Remove "num" parameter, assign it within the
4442         function.
4443         (get_dump_file_name): Modify template for dumps.
4444         * tree-dump.h (dump_register): Adjust prototype.
4445         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
4446         (PROP_trees): Add PROP_gimple_lomp.
4447         (TODO_set_props): New.
4448         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
4449         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
4450         * cfgexpand.c (pass_expand): Destroy PROP_trees.
4451
4452 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
4453
4454         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
4455         (sparc64-*-linux*): Likewise.
4456         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
4457         * config/sparc/t-linux: New file.
4458         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
4459         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
4460         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
4461         -m32 -mlong-double-128.
4462
4463         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
4464         * config/alpha/t-linux: New file.
4465         * config/alpha/libgcc-alpha-ldbl.ver: New file.
4466
4467         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
4468         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
4469         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
4470         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
4471         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
4472         (CPP_ARCH32_SPEC): Remove.
4473
4474 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
4475
4476         PR tree-optimization/26145
4477         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
4478         bbs pointer.
4479
4480 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4481
4482         PR target/26109
4483         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
4484         >= 240000 when generating code for SOM runtime.
4485         (output_indirect_call): Don't use "b,l" instruction for indirect calls
4486         to $$dyncall when generating code for SOM runtime..
4487
4488 2006-02-07  Dirk Mueller  <dmueller@suse.com>
4489
4490         PR c++/18150
4491         * doc/invoke.texi (-Wsequence-point): Update documentation
4492         that -Wsequence-point is implemented for C++ as well.
4493
4494 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
4495
4496         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
4497         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
4498         (LIB_SPEC): Likewise.
4499         * doc/invoke.texi (SPARC options): Document -pthread.
4500
4501 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
4502
4503         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
4504         PIC addresses.
4505
4506 2006-02-07  Roger Sayle  <roger@eyesopen.com>
4507
4508         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
4509         Correct comment describing BOOLEAN_TYPE.
4510
4511 2006-02-07  Dirk Mueller  <dmueller@suse.com>
4512
4513         * c.opt: C++ frontend supports -Wdiv-by-zero.
4514         * c-opts.c (c_common_handle_option): Remove dead case.
4515
4516 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
4517
4518         * configure.ac (TLS assembler check): Do not enable TLS by
4519         default on SPARC/Solaris before version 10.
4520         * configure: Regenerate.
4521
4522 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
4523
4524         * doc/invoke.texi (xl-compat): Document conversion and support
4525         routine names.
4526
4527 2006-02-07  Jeff Law  <law@redhat.com>
4528
4529         * tree-vrp.c (find_conditional_asserts): Update comments.
4530         (simplify_stmt_for_jump_threading): New.
4531         (identify_jump_threads, finalize_jump_threads): New.
4532         (vrp_finalize): Call identify_jump_threads.
4533         (execute_vrp): Call finalize_jump_threads.
4534         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
4535         (vrp_element, vrp_data, vrp_element_p): Remove.
4536         (vrp_hash_elt, vrp_variables_stack): Remove.
4537         (vrp_hash, vrp_eq, record_range): Remove.
4538         (simplify_cond_and_lookup_avail_expr): Remove.
4539         (extract_range_from_cond): Remove.
4540         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
4541         (simplify_stmt_for_jump_threading): New.
4542         (dom_thread_across_edge): New wrapper.
4543         (tree_ssa_dominator_optimize): No longer initialize or
4544         finalize any of the VRP datastructures.  Remove iteration
4545         step and simplify as a result of removal of iteration step.
4546         (pass_dominator): Perform a cfg cleanup after DOM.
4547         (dom_opt_finalize_block): Use the new common routines
4548         for threading jumps.  Simplify stack management slightly.
4549         No longer need to unwind VRP state.
4550         (record_equivalences_from_incoming_edge): No longer record
4551         VRP information.
4552         (eliminate_redundant_computations): No longer call
4553         simplify_cond_and_lookup_avail_expr.
4554         * tree-flow.h (potentially_threadable_block): Prototype.
4555         (thread_across_edge): Likewise.
4556         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
4557         (tree-ssa-threadedge.o): Add dependencies.
4558         * tree-ssa-threadedge.c: New file.
4559         * passes.c (init_optimization_passes): Merge PHIs before
4560         calling VRP.  Run VRP again late in the SSA optimization pipeline.
4561
4562 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
4563
4564         * df-core.c (df_set_blocks): Do not dereference function pointers.
4565         (df_finish1): Likewise.
4566         (df_hybrid_search_forward): Likewise.
4567         (df_hybrid_search_backward): Likewise.
4568         (df_iterative_dataflow): Likewise.
4569         (df_analyze_problem): Likewise.
4570         (df_compact_blocks): Likewise.
4571         (df_dump): Likewise.
4572         * df-scan.c (df_rescan_blocks): Likewise.
4573         (df_record_entry_block_defs): Likewise.
4574
4575         * genconditions.c (write_conditions): Guard the definition of
4576         'insn_conditions' with the check on GCC version.
4577         (write_writer): Guard the traversal 'insn_conditions' with
4578         the check on GCC version.
4579
4580 2006-02-07  Richard Guenther  <rguenther@suse.de>
4581
4582         PR c++/26140
4583         Revert
4584         2006-01-30  Richard Guenther  <rguenther@suse.de>
4585         PR c++/23372
4586         * gimplify.c (gimplify_target_expr): Handle easy cases
4587         without creating a temporary.
4588
4589 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
4590
4591         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
4592         use of float in probability computations.  Use edge probabilities
4593         in place of statically computed probabilities.
4594         (min_spec_prob): New static variable.
4595         (schedule_insns): Initialize it.
4596         (GET_SRC_PROB): Removed.
4597         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
4598
4599 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
4600
4601         PR debug/24444
4602         * config/ia64/unwind-ia64.c: Revert last change.
4603         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
4604         (INCOMING_FRAME_SP_OFFSET): Define.
4605
4606 2006-02-06  Roger Sayle  <roger@eyesopen.com>
4607
4608         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
4609
4610 2006-02-07  Ben Elliston  <bje@au.ibm.com>
4611
4612         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
4613         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
4614         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
4615         (ix86_return_in_memory): Handle TDmode.
4616         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
4617         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
4618
4619 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
4620
4621         * reorg.c (dbr_schedule): Use dump_file instead of file.
4622
4623 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
4624
4625         PR target/25917
4626         * config/ia64/predicates.md (extr_len_operand): New predicate.
4627         * config/ia64/ia64.md (extv): Tighten constraints.
4628         (extzv): Ditto.
4629         (*tbit_and_2): Ditto.
4630         (*tbit_and_3): Ditto.
4631         (*tbit_or_2): Ditto.
4632         (*tbit_or_3): Ditto.
4633         (*bit_zero): Ditto.
4634         (*bit_one): Ditto.
4635
4636 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
4637
4638         PR target/23359
4639         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
4640
4641 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
4642
4643         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
4644         loop_optimizer_init and loop_optimizer_finalize
4645         * tree-ssa-sink.c (execute_sink_code): Ditto.
4646         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
4647         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
4648         tree_ssa_loop_done): Ditto.
4649         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
4650         * sched-ebb.c: Include output.h.
4651         (schedule_ebbs): Do not use dump argument.
4652         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
4653         * loop.c (loop_dump_stream): Removed.
4654         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
4655         argument.
4656         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
4657         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
4658         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
4659         loop_iterations, strength_reduce, record_biv, record_giv,
4660         final_giv_value, check_final_value, check_ext_dependent_givs,
4661         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
4662         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
4663         dump_file instead of loop_dump_stream.
4664         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
4665         argument dump_file.
4666         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
4667         dump argument.
4668         * flow.c (life_analysis, rest_of_handle_life): Ditto.
4669         * haifa-sched.c: Include output.h
4670         (schedule_insns, sched_init): Do not use dump argument.
4671         * mode-switching.c (optimize_mode_switching): Ditto.
4672         * modulo-sched.c (stats_file): Removed.
4673         (print_node_sched_params): Do not call argument dump_file.
4674         (sms_schedule_by_order, loop_canon_p, sms_schedule,
4675         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
4676         of stats_file.
4677         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
4678         use dump argument.
4679         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
4680         rtl_loop_init, rtl_loop_done): Ditto.
4681         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
4682         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
4683         Ditto.
4684         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
4685         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
4686         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
4687         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
4688         * emit-rtl.c (renumber_insns): Ditto.
4689         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
4690         expand_gimple_basic_block, tree_expand_cfg): Ditto.
4691         * regclass.c (regclass): Ditto.
4692         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
4693         remove_ssa_form, rewrite_out_of_ssa): Ditto.
4694         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
4695         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
4696         Ditto.
4697         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
4698         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
4699         to regclass.
4700         * gcse.c (gcse_file, debug_stderr): Removed.
4701         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
4702         rest_of_handle_gcse): Do not use dump argument.
4703         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
4704         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
4705         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
4706         compute_code_hoist_vbeinout, compute_code_hoist_data,
4707         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
4708         compute_store_table, build_store_vectors, insert_insn_start_bb,
4709         insert_store, remove_reachable_equiv_notes, replace_store_insn,
4710         store_motion): Use dump_file instead of gcse_file.
4711         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
4712         * profile.c (profile_dump_file): Removed.
4713         (branch_prob): Use dump_file instead of profile_dump_file.
4714         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
4715         dump_file.
4716         * tree-ssa-copy.c (dump_copy_of): Ditto.
4717         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
4718         dump file to life_analysis.
4719         * bt-load.c (branch_target_load_optimize): Ditto.
4720         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
4721         renumber_insns.
4722         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
4723         regclass, dbr_schedule): Declaration changed.
4724         * sched-int.h (sched_init): Declaration changed.
4725         * tree-profile.c (tree_profile_dump_file): Removed.
4726         (tree_profile_hooks): Removed profile_dump_file hook.
4727         * rtl-profile (rtl_profile_dump_file): Removed.
4728         (rtl_profile_hooks): emoved profile_dump_file hook.
4729         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
4730         changed.
4731         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
4732         * tree-cfg.c (build_tree_cfg): Ditto.
4733         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
4734         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
4735         Declaration changed.
4736         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
4737         life_analysis and schedule_insns.
4738         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
4739         life_analysis.
4740         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
4741         dbr_schedule.
4742         * config/mips/mips.c (mips_reorg): Ditto.
4743         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
4744         schedule_ebbs.
4745
4746 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
4747
4748         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
4749         (s390_mangle_fundamental_type): New.
4750         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
4751         Define.
4752
4753         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
4754         (alpha_mangle_fundamental_type): New.
4755         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
4756         Define.
4757
4758         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
4759         Define.
4760         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
4761         Define.
4762         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
4763         (sparc_mangle_fundamental_type): New.
4764
4765 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
4766
4767         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
4768         (s390x-*-linux*): Likewise.
4769         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
4770         * config/s390/t-linux: New file.
4771
4772 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
4773
4774         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
4775         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
4776
4777 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
4778
4779         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
4780         (ANTIC_SAFE_LOADS): New macro.
4781         (find_or_generate_expression): Add prototype.
4782         (set_contains_value): Allow null set for sake of not always having
4783         to allocate ANTIC_SAFE_LOADS.
4784         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
4785         Allow COMPONENT_REF too.
4786         (valid_in_set): Allow COMPONENT_REF.
4787         Check ANTIC_SAFE_LOADS too.
4788         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
4789         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
4790         rename.
4791         (can_PRE_operation): Add COMPONENT_REF.
4792         (create_component_ref_by_pieces): New function.
4793         (create_expression_by_pieces): Use create_component_ref_by_pieces.
4794         (insert_aux): Move AGGREGATE_TYPE_P check here.
4795         (compute_avail): Set bb local stmt uids.
4796         (pass_pre): Use TODO_update_ssa_only_virtuals.
4797
4798 2006-02-06  Ben Elliston  <bje@au.ibm.com>
4799
4800         * configure.ac: Unconditionally disable decimal float by default.
4801         * configure: Regenerate.
4802
4803 2006-02-06  Ben Elliston  <bje@au.ibm.com>
4804
4805         * read-rtl.c (read_name): Terminate reading on EOF.
4806
4807 2006-02-06  Ben Elliston  <bje@au.ibm.com>
4808
4809         * dfp.c (decimal_real_arithmetic): Change second argument type
4810         from int to enum tree_code. Do not always return true, but now
4811         return result of any call to decimal_do helper functions.
4812         * dfp.h (decimal_real_arithmetic): Update prototype.
4813
4814 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
4815
4816         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
4817
4818 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
4819
4820         PR tree-opt/25251
4821         * tree-cfg.c (cleanup_dead_labels): Also don't remove
4822         forced labels.
4823
4824 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
4825
4826         * tree-vrp.c (cfg_loops): Removed.
4827         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
4828         Use current_loops instead of cfg_loops.  Pass flags to
4829         loop_optimizer_init.
4830         * cfgloopmanip.c (fix_loop_structure): Update only available
4831         information.
4832         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
4833         loop_optimizer_init.
4834         * modulo-sched.c (build_loops_structure): Removed.
4835         (sms_schedule): Use loop_optimizer_init.
4836         * loop-init.c (loop_optimizer_init): Use flags to determine
4837         which properties of loops to prepare.
4838         (rtl_loop_init): Pass flags to loop_optimizer_init.
4839         * tree-ssa-sink.c (execute_sink_code): Ditto.
4840         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
4841         * tree-ssa-pre.c (init_pre): Ditto.
4842         * cfgloop.h (LOOPS_NORMAL): New.
4843         (loop_optimizer_init): Declaration changed.
4844
4845 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4846
4847         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
4848         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
4849         pa/t-pa.
4850         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
4851         pa/t-pa.
4852         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
4853         pa/x-ada.
4854         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
4855         * pa/t-pa64: Delete quadlib.c rule.
4856         * pa/x-ada: Revert last change.
4857         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
4858
4859 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
4860
4861         PR rtl-optimization/26087
4862         * rtlanal.c (canonicalize_condition): Do not cross basic block
4863         boundaries.
4864
4865 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
4866
4867         PR debug/24444
4868         * config/ia64/ia64.c: Include debug.h.
4869         (MAX_ARTIFICIAL_LABEL_BYTES): New.
4870         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
4871         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
4872         (process_epilogue, process_set, process_for_unwind_directive):
4873         Output unwind info only if requested.  Add CFA info if requested.
4874         Add new arguments as needed.  Adjust callers.
4875         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
4876         incorrect default.
4877         (DWARF2_FRAME_INFO): Define to zero.
4878         * config/ia64/unwind-ia64.c: Remove code that compensated for
4879         the CFA offset error fixed above.
4880         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
4881         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
4882         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
4883         -funwind-tables and -fexceptions to enable frame info.
4884         (dwarf2out_frame_init): Define initial CFA even if
4885         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
4886         DWARF2_UNWIND_INFO is nonzero, not just defined.
4887         (dwarf2out_frame_finish): Output non-EH call frame info only
4888         if DWARF2_FRAME_INFO is nonzero.
4889         (convert_cfa_to_loc_list,
4890         compute_frame_pointer_to_cfa_displacement): Define even if
4891         unwind info is not supported.
4892         (gen_subprogram_die): Use the above unconditionally.  Remove
4893         legacy alternate code.
4894         * toplev.c (compile_file): Compile in call to
4895         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
4896         (lang_dependent_init): Ditto for dwarf2out_frame_init.
4897
4898 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
4899             Jakub Jelinek  <jakub@redhat.com>
4900
4901         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
4902         IBM extended float format long double as "g" on powerpc*-linux.
4903
4904 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4905
4906         PR target/25926
4907         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
4908         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
4909
4910 2006-02-03  Jason Merrill  <jason@redhat.com>
4911
4912         PR c++/25979
4913         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
4914
4915         PR middle-end/25977
4916         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
4917         on the return slot if it's an NRV.
4918
4919 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
4920
4921         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
4922         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
4923         rewrite_use): Do not handle USE_OUTER.
4924         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
4925         add_iv_outer_candidates, may_replace_final_value,
4926         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
4927         (find_interesting_uses_op): Functionality of
4928         find_interesting_uses_outer_or_nonlin moved here.
4929         (find_interesting_uses_outside): Use find_interesting_uses_op.
4930
4931 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
4932
4933         PR target/25960
4934         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
4935
4936 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
4937             Ulrich Weigand  <uweigand@de.ibm.com>
4938
4939         PR target/25864
4940         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
4941         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
4942         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
4943         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
4944         and dxr fields.
4945         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
4946         (s390_rtx_costs): Use the new fields to calculate rtx costs.
4947         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
4948         Define secondary reloads for TFmode moves.
4949         (constant_modes): Add TFmode.
4950         (NR_C_MODES): Set to 8.
4951         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
4952         builtin define.
4953         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
4954         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
4955         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
4956         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
4957         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
4958         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
4959         (FPR mode macro): Add TFmode.
4960         (DSF mode macro): New.
4961         (<de>, <dee> mode attributes): Removed.
4962         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
4963         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
4964         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
4965         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
4966         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
4967         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
4968         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
4969         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
4970         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
4971         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
4972         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
4973         "*negabs<mode>2", "sqrt<mode>2"):
4974         Changed <de> to <xde>. R constraint replaced by <Rf>.
4975         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
4976         <Rf>.
4977         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
4978         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
4979         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
4980         splitters.
4981         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
4982         "extenddftf2", "extendsftf2"): New expanders.
4983         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
4984         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
4985         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
4986         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
4987         New options.
4988         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
4989         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
4990         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
4991         __floatditf): Add a GCC_4.1.0 symbol version tag.
4992         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
4993         the new options.
4994
4995 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
4996
4997         PR target/25377
4998         * config/i386/i386.c (ix86_function_ok_for_sibcall):
4999         Use targetm.binds_local_p instead of TREE_PUBLIC.
5000
5001 2006-02-02  Roger Sayle  <roger@eyesopen.com>
5002
5003         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
5004         on INTEGER_TYPEs to indicate that it denotes a character type.
5005         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
5006         signed_char_type_node, unsigned_char_type_node and char_type_node.
5007         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
5008         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
5009         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
5010
5011 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
5012             Daniel Berlin  <dberlin@dberlin.org>
5013
5014         * tree-tailcall.c (arg_needs_copy_p): New function.
5015         (eliminate_tail_call): Use arg_needs_copy_p.
5016         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
5017         (add_virtual_phis): New function.
5018
5019 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
5020
5021         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
5022         #ignore instead of #scratch for %g7 .register directive.
5023
5024 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
5025
5026         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
5027         object files.
5028
5029 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
5030
5031         * flow.c (calculate_global_regs_live): Assert that there aren't any
5032         EDGE_FAKE edges.
5033
5034 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
5035
5036         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
5037         what its name says.
5038         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
5039         bsi_after_labels iterator.
5040         * tree-if-conv.c (find_phi_replacement_condition,
5041         replace_phi_with_cond_modify_expr): Likewise.
5042         * tree-scalar-evolution.c (scev_const_prop): Likewise.
5043         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
5044
5045 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
5046
5047         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
5048
5049 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
5050
5051         PR 25990
5052         * tree-cfg.c (move_block_to_fn): Clear out the basic block
5053         array after growing it.
5054
5055 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
5056
5057         PR middle-end/24901
5058         * fold-const.c (fold_checksum_tree): Change type of buf.
5059
5060 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
5061
5062         * reload.c (push_secondary_reload): Initialize t_icode.
5063
5064 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
5065
5066         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
5067         -msoft-float -mlong-double-128 only issue a warning, but don't
5068         swich to DFmode long double.
5069
5070 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
5071
5072         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
5073         has a constant equivalent, iterate over equivalents for arg0,
5074         calling simplify_relational_operation and if there's a result
5075         cheaper than X, apply fold_rtx and return the result.
5076
5077 2006-02-01  Jan Hubicka  <jh@suse.cz>
5078
5079         * opts.c (no_unit_at_a_time_default): New global variable.
5080         (decode_options): Use it.
5081         * opts.h (no_unit_at_a_time_default): Declare.
5082
5083 2006-02-01  Paul Brook  <paul@codesourcery.com>
5084
5085         * function.c (assign_parm_setup_reg): Use function argument promotion
5086         rules.
5087         * expr.c (expand_expr_real_1): Use function argument promotion rules
5088         for PARM_DECLs.
5089
5090 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
5091
5092         * gcc.c (process_command): Change j to 'unsigned int'.
5093
5094 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
5095
5096         PR middle-end/26001
5097         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
5098         Use the corrected index for the character
5099         out of the string constant.
5100
5101 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
5102
5103         * mode-switching.c (optimize_mode_switching): Fix size
5104         allocated for bb_info[n_entities].
5105
5106 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
5107
5108         * gcc.c (main): Correct type that is allocated for
5109         explicit_link_files.
5110
5111 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
5112
5113         * config/s390/s390.c (init_alignment_context): Set
5114         ALIAS_SET_MEMORY_BARRIER on the MEM.
5115         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
5116
5117 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
5118
5119         PR middle-end/25933
5120         * loop-unroll.c (unroll_loop_runtime_iterations): Free
5121         dom_bbs pointer.
5122         * tree-ssa-live.c (type_var_init): Allocate bitmap after
5123         call to tpa_init.
5124
5125 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
5126
5127         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
5128         * regrename.c: Ditto.
5129         * tree-ssa-loop-im.c: Ditto.
5130         * tree-dump.c: Ditto.
5131         * tree-complex.c: Ditto.
5132         * genrecog.c: Ditto.
5133         * tree-ssa-threadupdate.c: Ditto.
5134         * tracer.c: Ditto.
5135         * java/class.c: Ditto.
5136         * java/jcf-parse.c: Ditto.
5137         * java/resource.c: Ditto.
5138         * java/except.c: Ditto.
5139         * java/jvspec.c: Ditto.
5140         * java/jcf-write.c: Ditto.
5141         * java/jcf-path.c: Ditto.
5142         * java/gjavah.c: Ditto.
5143         * java/zextract.c: Ditto.
5144         * java/jcf-io.c: Ditto.
5145         * java/jcf.h: Ditto.
5146         * java/buffer.c: Ditto.
5147         * java/lang.c: Ditto.
5148         * java/parse-scan.y: Ditto.
5149         * java/lex.c: Ditto.
5150         * java/lex.h: Ditto.
5151         * cfgloopmanip.c: Ditto.
5152         * postreload-gcse.c: Ditto.
5153         * tree-ssa-loop-manip.c: Ditto.
5154         * postreload.c: Ditto.
5155         * tree-ssa-loop-ch.c: Ditto.
5156         * loop.c: Ditto.
5157         * ipa-cp.c: Ditto.
5158         * cppspec.c: Ditto.
5159         * diagnostic.c: Ditto.
5160         * final.c: Ditto.
5161         * genoutput.c: Ditto.
5162         * gcc.c: Ditto.
5163         * cfghooks.c: Ditto.
5164         * cfgloopanal.c: Ditto.
5165         * objc/objc-act.c: Ditto.
5166         * gcov.c: Ditto.
5167         * genextract.c: Ditto.
5168         * genautomata.c: Ditto.
5169         * pretty-print.c: Ditto.
5170         * genemit.c: Ditto.
5171         * cgraphunit.c: Ditto.
5172         * flow.c: Ditto.
5173         * df-scan.c: Ditto.
5174         * haifa-sched.c: Ditto.
5175         * dominance.c: Ditto.
5176         * dbxout.c: Ditto.
5177         * tree-ssa-loop-ivopts.c: Ditto.
5178         * df-core.c: Ditto.
5179         * mode-switching.c: Ditto.
5180         * modulo-sched.c: Ditto.
5181         * graph.c: Ditto.
5182         * ipa-pure-const.c: Ditto.
5183         * cse.c: Ditto.
5184         * fix-header.c: Ditto.
5185         * web.c: Ditto.
5186         * tree-stdarg.c: Ditto.
5187         * ipa-utils.c: Ditto.
5188         * loop-init.c: Ditto.
5189         * ipa-inline.c: Ditto.
5190         * cfganal.c: Ditto.
5191         * global.c: Ditto.
5192         * alloc-pool.c: Ditto.
5193         * dwarf2out.c: Ditto.
5194         * opts.c: Ditto.
5195         * genattrtab.c: Ditto.
5196         * tree-ssa-loop-ivcanon.c: Ditto.
5197         * predict.c: Ditto.
5198         * timevar.c: Ditto.
5199         * lcm.c: Ditto.
5200         * fortran/gfortranspec.c: Ditto.
5201         * regmove.c: Ditto.
5202         * local-alloc.c: Ditto.
5203         * langhooks.c: Ditto.
5204         * function.c: Ditto.
5205         * tree-vectorizer.c: Ditto.
5206         * gcse.c: Ditto.
5207         * ipa-type-escape.c: Ditto.
5208         * alias.c: Ditto.
5209         * tree-if-conv.c: Ditto.
5210         * profile.c: Ditto.
5211         * ipa.c: Ditto.
5212         * tree-data-ref.c: Ditto.
5213         * loop-unroll.c: Ditto.
5214         * treelang/treetree.c: Ditto.
5215         * calls.c: Ditto.
5216         * bt-load.c: Ditto.
5217         * ggc-common.c: Ditto.
5218         * except.c: Ditto.
5219         * coverage.c: Ditto.
5220         * cselib.c: Ditto.
5221         * tree-cfgcleanup.c: Ditto.
5222         * tree-ssa-pre.c: Ditto.
5223         * cfgcleanup.c: Ditto.
5224         * loop-invariant.c: Ditto.
5225         * loop-iv.c: Ditto.
5226         * ipa-prop.c: Ditto.
5227         * print-tree.c: Ditto.
5228         * conflict.c: Ditto.
5229         * ggc-page.c: Ditto.
5230         * sched-deps.c: Ditto.
5231         * regclass.c: Ditto.
5232         * tree-object-size.c: Ditto.
5233         * combine.c: Ditto.
5234         * bb-reorder.c: Ditto.
5235         * resource.c: Ditto.
5236         * var-tracking.c: Ditto.
5237         * cfgloop.c: Ditto.
5238         * df-problems.c: Ditto.
5239         * reg-stack.c: Ditto.
5240         * tlink.c: Ditto.
5241         * gccspec.c: Ditto.
5242         * sched-rgn.c: Ditto.
5243         * tree-ssa-structalias.c: Ditto.
5244         * tree-ssa-reassoc.c: Ditto.
5245         * config/darwin-c.c: Ditto.
5246         * config/darwin.c: Ditto.
5247         * config/arm/arm.c: Ditto.
5248         * cfgrtl.c: Ditto.
5249         * collect2.c: Ditto.
5250         * reload1.c: Ditto.
5251
5252 2006-01-31  Nicolas Pitre  <nico@cam.org>
5253
5254         * arm.md (smaxsi3): Make aware of smax_m1.
5255         (smax_m1): New.
5256
5257 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
5258
5259         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
5260
5261 2006-01-31  Richard Guenther  <rguenther@suse.de>
5262
5263         * doc/invoke.texi (-msselibm): Document.
5264         * target.h (expand_library_builtin): New target hook.
5265         * builtins.c (expand_builtin): Use expand_library_builtin.
5266         (default_expand_library_builtin): New function.
5267         * gcc.c (LINK_GCC_MATH_SPEC): Define.
5268         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
5269         (link_gcc_math_spec): Declare.
5270         (static_specs): Add link_gcc_math_spec.
5271         * expr.h (default_expand_library_builtin): Declare.
5272         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
5273         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
5274         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
5275         * config/i386/i386.opt (msselibm): New target option.
5276         * config/i386/i386.c (ix86_builtin_function_variants): New array.
5277         (ix86_init_sse_abi_builtins): New function.
5278         (ix86_expand_library_builtin): Likewise.
5279         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
5280         (override_options): Handle error conditions wrt -msselibm.
5281         (ix86_builtins): Add function codes for SSE2 ABI builtins.
5282         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
5283         * doc/extend.texi (__builtin_sse2_*): Document new target specific
5284         builtins.
5285
5286 2006-01-31  Richard Guenther  <rguenther@suse.de>
5287         Paolo Bonzini  <bonzini@gnu.org>
5288
5289         * doc/install.texi (--disable-libgcc-math): Document.
5290
5291 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
5292
5293         * expr.h (expand_normal): new inline function.
5294         * builtins.c: use it, use EXPAND_NORMAL explicitely.
5295         * dojump.c: use it.
5296         * dwarf2out.c: use it.
5297         * expr.c: use it.
5298         * calls.c: use it.
5299         * expmed.c: use it.
5300         * except.c: use it.
5301         * config/sparc/sparc.c: use it.
5302         * config/i386/i386.c: use it.
5303         * config/rs6000/rs6000.c: use it.
5304         * config/arm/arm.c: use it.
5305         * config/mips/mips.c: use it.
5306         * stmt.c: use it, use EXPAND_NORMAL explicitely.
5307
5308 2006-01-30  Roger Sayle  <roger@eyesopen.com>
5309
5310         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
5311         argv to the appropriate type.
5312
5313 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
5314
5315         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
5316         unreachable code.
5317
5318 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
5319
5320         PR target/26018
5321         * config/s390/s390.c (struct machine_function): New flag
5322         decomposed_literal_pool_addresses_ok_p.
5323         (s390_reorg): Set it before final stage of literal pool transforms.
5324         (s390_decompose_address): Only accept displacements of the form
5325         (minus (label_ref ...) (label_ref ...)) if that flag is set.
5326
5327 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
5328
5329         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
5330         the comparison routine return.
5331
5332 2006-01-30  Michael Matz  <matz@suse.de>
5333
5334         * global.c (find_reg): Only evict for global regs.
5335         Take n_refs into account and dump more info.
5336
5337 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
5338
5339         PR target/14798:
5340         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
5341         (pragma_trap, pragma_nosave_low_regs): Likewise.
5342         (current_function_anonymous_args): Likewise.
5343         (sh_deferred_function_attributes): New variable.
5344         (sh_deferred_function_attributes_tail): Likewise.
5345         (print_operand): For '@', look up trap_exit attribute.
5346         (calc_live_regs): Look up trapa_handler attribute.  For trapa
5347         handlers, save/restore fpscr, but don't do any other
5348         interrupt-specific saves.
5349         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
5350         Fix check for partially saved registers to check for SHmedia.
5351         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
5352         (sh_output_function_epilogue): Don't clear any of the removed
5353         variables.
5354         (sh_insert_attributes): Don't check pragma_interrupt.
5355         Insert deferred attributes.  Check that interrupt attribute is
5356         present for other attributes that require its presence.
5357         (sh_attribute_table): Add new attributes trapa_handler and
5358         nosave_low_regs.
5359         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
5360         Don't check for pragma_interrupt.  Don't store argument.
5361         * sh.h (pragma_interrupt, sp_switch): Don't declare.
5362         (sh_deferred_function_attributes): Declare.
5363         (sh_deferred_function_attributes_tail): Likewise.
5364         * sh.md (sp_switch_1): Add operand.  Change generator caller.
5365         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
5366         (*return_i): Don't use when trap_exit attribute is in effect.
5367         (*return_trapa): New insn pattern.
5368         * sh-c.c: New file.
5369         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
5370         setting c_target_objs and cxx_target_objs.
5371         * t-sh: Add rule for sh-c.o.
5372
5373 2006-01-30  Richard Guenther  <rguenther@suse.de>
5374
5375         PR c++/23372
5376         * gimplify.c (gimplify_target_expr): Handle easy cases
5377         without creating a temporary.
5378
5379 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
5380
5381         * vec.h (safe_grow): Remove duplicated line.
5382
5383 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
5384
5385         PR 25874
5386         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
5387         (expand_omp): ... here.
5388         (expand_omp_parallel): Only remove barriers for combined
5389         parallel+workshare constructs.
5390
5391 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
5392
5393         Revert
5394
5395         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
5396         * tree.c (build_qualified_type): Chain the new type to the original
5397         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
5398         a POINTER_TYPE or a REFERENCE_TYPE respectively.
5399         (build_pointer_type_for_mode): Only return unqualified types.
5400         (build_reference_type_for_mode): Likewise.
5401
5402 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
5403
5404         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
5405         * Makefile.in (CXX_COMPAT_WARN): Define.
5406         * configure: Regenerate.
5407
5408 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
5409
5410         PR tree-opt/25911
5411         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
5412         to an if check.
5413
5414 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
5415
5416         * toplev.c: Fix thinko.
5417
5418 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
5419             Marcin Dalecki  <martin@dalecki.de>
5420
5421         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
5422         (push_srcloc): Use XNEW.
5423         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
5424
5425 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
5426
5427         * df-core.c (df_set_blocks): Deleted all variable.
5428
5429 2006-01-28  Ian Lance Taylor  <ian@airs.com>
5430
5431         * cgraphunit.c (cgraph_assemble_pending_functions): Call
5432         cgraph_output_pending_asms.
5433
5434 2006-01-28  Zack Weinberg  <zackw@panix.com>
5435
5436         * c.opt: Add -W(no-)overlength-strings.
5437         * doc/invoke.texi: Document it.
5438         * c-opts.c (c_common_handle_option): -pedantic implies
5439         -Woverlength-strings, if not explicitly disabled already.
5440         (c_common_post_options): -Woverlength-strings defaults to off, and
5441         is always off for C++.
5442         * c-common.c (fix_string_type): Issue warning about strings longer
5443         than is portable only if warn_overlength_strings.  Rearrange code
5444         a little for clarity.
5445         * configure.in: Check for -Wno-overlength-strings as well before
5446         enabling -pedantic in stage 1.
5447         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
5448         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
5449
5450         * genconditions.c (write_header, write_one_condition)
5451         (write_conditions, write_writer): Consolidate very long strings
5452         that were broken up to fit in C89 portable limit.  Don't use
5453         printf when fputs will do.
5454
5455 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
5456
5457         * combine.c (simplify_comparison <AND>): Check
5458         TRULY_NOOP_TRUNCATION before start using a subreg.
5459
5460         * config/mips/mips.md (*branch_zero<mode>,
5461         *branch_zero<mode>_inverted, *branch_equality<mode>,
5462         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
5463         Remove mode check from comparisons.
5464
5465 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
5466
5467         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
5468
5469 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
5470
5471         * expmed.c (const_mult_add_overflow_p): Remove.
5472         * expr.h: Remove the prototype for const_mult_add_overflow_p.
5473
5474         * recog.c (validate_replace_rtx_subexp): Remove.
5475         * recog.h: Remove the prototype for
5476         validate_replace_rtx_subexp.
5477
5478         * integrate.h: Remove the prototype for
5479         copy_decl_for_inlining.
5480         * rtl.h: Remove the prototype for mark_constant_function.
5481         * tree-vectorizer.h: Remove the prototype for
5482         vect_strip_conversion.
5483
5484         * modulo-sched.c (create_partial_schedule,
5485         free_partial_schedule, reset_partial_schedule): Make them
5486         static.
5487
5488         * hooks.c (hook_bool_rtx_int_false): Remove.
5489         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
5490
5491 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
5492
5493         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
5494         and -mlong-double-128 are incompatible.
5495         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
5496         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
5497         (TARGET_LIBGCC2_CFLAGS): Define.
5498         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
5499         (TARGET_LIBGCC2_CFLAGS): Same.
5500         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
5501
5502 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
5503
5504         PR c/19606.
5505         * c-typeck.c (build_binary_op): Perform implicit casts of
5506         operands before shortening them.
5507
5508         * cfgloopmanip.c (split_loop_bb): Remove.
5509         * cfgloop.h: Remove the prototype for split_loop_bb.
5510
5511         * cfgloop.c (flow_loop_outside_edge_p): Remove.
5512         * cfgloop.h: Remove the prototype for
5513         flow_loop_outside_edge_p.
5514
5515         * emit-rtl.c (init_virtual_regs): Make it static.
5516         * function.h: Remove the prototype for init_virtual_regs.
5517
5518         * recog.c (peephole2_optimize): Make it static.
5519         * recog.h: Remove the prototype for peephole2_optimize.
5520
5521 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
5522
5523         * df-scan.c (df_record_entry_block_defs): Check if
5524         INCOMING_RETURN_ADDR_RTX is defined.
5525
5526 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
5527             Kenneth Zadeck <zadeck@naturalbridge.com>
5528
5529         PR rtl-optimization/24762
5530         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
5531         * targhooks.c (hook_void_bitmap): New hook prototype.
5532         * targhoohs.h (hook_void_bitmap): Ditto.
5533         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
5534         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
5535         * target.h (live_on_entry): New function pointer.
5536         * df-scan.c (df_all_hard_regs): Removed.
5537         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
5538         (df_scan_free_internal): Added df->entry_block_defs.
5539         (df_scan_alloc): Ditto.
5540         (df_scan_dump): Ditto.
5541         (df_uses_record): Plumbed flag field properly thru calls.
5542         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
5543         This part fixes PR24762.
5544         (df_bb_refs_record): Added code to make the frame and arg
5545         pointers live in EH blocks.
5546         (df_refs_record): Added call to df_record_entry_block_defs.
5547         (df_record_entry_block_defs): New function.
5548         * df-core.c: Added comments to describe new artifical defs.
5549         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
5550         (entry_block_defs): New field in struct df.
5551         (df_all_hard_regs): Deleted.
5552         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
5553         * df-problems.c (df_ru_bb_local_compute_process_def):
5554         Added code to handle artifical defs in the entry to a function.
5555         (df_ru_bb_local_compute): Ditto.
5556         (df_rd_bb_local_compute_process_def):  Ditto.
5557         (df_rd_bb_local_compute): Ditto.
5558         (df_lr_bb_local_compute): Ditto.
5559         (df_ur_bb_local_compute): Ditto.
5560         (df_urec_bb_local_compute):  Ditto.
5561         (df_chain_create_bb):  Ditto.
5562         (df_ur_local_finalize): Removed entry.
5563         (df_urec_init): Ditto.
5564         (df_urec_local_finalize): Ditto.
5565         (df_ri_bb_compute): Added detection of last use of pseudos.
5566         * Makefile.in (df-scan.o): Updated dependencies.
5567         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
5568         * config/mips/mips.c (mips_set_live_on_entry): Added.
5569         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
5570         for target hook.
5571         * dce.c (marked_insn_p): Added code to handle artifical defs.
5572
5573 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
5574
5575         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
5576         intrinsic.
5577         (_mm_cvtsi128_si64): Likewise.
5578         (_mm_cvtsd_si64): Likewise.
5579         (_mm_cvttsd_si64): Likewise.
5580         (_mm_cvtsi64_sd): Likewise.
5581         (_mm_cvtsi64_si128): Likewise.
5582         * config/i386/mmintrin.h (_m_from_int64): Likewise.
5583         (_mm_cvtsi64_m64): Likewise.
5584         (_m_to_int64): Likewise.
5585         (_mm_cvtm64_si64): Likewise.
5586         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
5587         (_mm_cvttss_si64): Likewise.
5588         (_mm_cvtsi64_ss): Likewise.
5589         (_mm_cvtss_f32): Likewise.
5590
5591 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
5592
5593         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
5594         for pragma redefine_extname.
5595
5596 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
5597
5598         PR target/25864
5599         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
5600         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
5601         -mno-minimal-toc to previous content.
5602         (bispecs): Remove goal.
5603         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
5604         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
5605         compatibility aliases on powerpc-*-*gnu*.
5606         * config/rs6000/libgcc-ppc-glibc.ver: New file.
5607         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
5608         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
5609         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
5610         (ldblspecs): New goal.
5611         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
5612         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
5613         _df_to_tf.
5614         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
5615         L_sf_to_tf or L_df_to_tf is defined.
5616
5617 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
5618             Alan Modra  <amodra@bigpond.net.au>
5619
5620         PR target/25864
5621         * config/rs6000/linux.h (POWERPC_LINUX): Define.
5622         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
5623         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
5624         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
5625         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
5626         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
5627         (rs6000_override_options): Initialize rs6000_ieeequad.
5628         Initialize TFmode format to ibm_extended_format if not
5629         TARGET_IEEEQUAD.
5630         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
5631         ieeelongdouble.
5632         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
5633         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
5634         (function_arg_advance): IBM long double passed in two FPRs, not
5635         split.
5636         (function_arg): IBM long double passed in FPRs.
5637         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
5638         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
5639         Only multireg GPR aligned.
5640         (rs6000_init_libfuncs): Enable IBM long double functions if not
5641         IEEEQUAD.
5642         (rs6000_generate_compare): Use IBM long double compare if not
5643         TARGET_IEEEQUAD.
5644         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
5645         (TARGET_IEEEQUAD): Define.
5646         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
5647         not TARGET_IEEEQUAD.
5648         * config/rs6000/rs6000.md: Enable TFmode patterns if
5649         !TARGET_IEEEQUAD.
5650         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
5651         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
5652         and -mlong-double-128 are incompatible.
5653         * doc/invoke.texi (-mabi): Collect options together.  Add
5654         ibmlongdouble and ieeelongdouble.
5655
5656 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
5657
5658         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
5659         opaque type.
5660         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
5661         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
5662         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
5663         * rtl.h (rtunion_def): Remove rt_ptr.
5664         (X0PTR): Delete.
5665         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
5666         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
5667         * config/i386/winnt.c (i386_pe_mark_dllexport)
5668         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
5669
5670 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
5671
5672         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
5673
5674 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
5675
5676         PR other/24829
5677         PR target/24831
5678         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
5679         pthread_key_delete.  From John David Anglin.  gthrw-ify
5680         pthread_getunique_np only if it it's not a macro.  Delete
5681         UNUSED macro.
5682         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
5683         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
5684         __gthread_objc_condition_signal, __gthread_key_delete): Add
5685         "__attribute__ ((__unused__))" to unused arguments.
5686         (__gthread_recursive_mutex_init_function): Add missing return.
5687         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
5688         gthr-posix95.h: Use macro-based approach for name redirection
5689         on targets missing weakref.
5690
5691 2006-01-26  Zack Weinberg  <zackw@panix.com>
5692
5693         * genconditions.c (write_header): In generated code, #ifdef out
5694         all includes and fake declarations, except includes of bconfig.h
5695         and system.h, unless GCC_VERSION >= 3001.  Do not include
5696         gensupport.h in any case.
5697         (write_conditions): Generate a definition of struct c_test.  Add
5698         a comment to the generated #endif.
5699         (write_one_condition): Escape backslashes in string too.
5700         (write_writer): Generated code must escape backslashes and quote
5701         marks (but not newlines) in the strings it writes.
5702         * Makefile.in (build/gencondmd.o): Update dependencies.
5703
5704 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
5705
5706         PR target/25961
5707         * Makefile.in (insn-automata.o): Add header file dependencies.
5708         * genautomata.c: Add includes.
5709
5710 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
5711
5712         PR target/25961
5713         * Makefile.in (insn-automata.o): Add -Wno-error flag.
5714
5715 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
5716
5717         * configure.ac: Expect target tools paths to be passed from the toplevel
5718         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
5719         AS_SET_VAR_IF.
5720         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
5721
5722 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
5723
5724         PR c/25892
5725         * c.opt (Wpointer-sign): Init to -1.
5726         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
5727         OPT_pedantic, to 0 otherwise.
5728         * doc/invoke.texi: Update.
5729
5730 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
5731
5732         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
5733         constants provided by 80387 instructions in the destination mode.
5734
5735 2006-01-26  Richard Guenther  <rguenther@suse.de>
5736             Andrew Pinski  <pinskia@physics.uc.edu>
5737
5738         PR tree-opt/21470
5739         partial PR tree-opt/17064
5740         * tree-ssa-structalias.c (intra_create_variable_infos):
5741         Create heap variables for incoming parameters if
5742         flag_argument_noalias > 1.
5743         (find_what_p_points_to): Look through default defs of
5744         parameter decls.
5745
5746 2006-01-26  Jeff Law  <law@redhat.com>
5747
5748         PR ada/25900
5749         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
5750         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
5751         within the VR_RANGE, use the VR_RANGE as the result, not the
5752         VR_ANTI_RANGE.
5753         (adjust_range_with_scev): Reject ranges from SCEV which are out of
5754         bounds for the type.
5755
5756 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
5757
5758         * tree-ssa-alias.c (maybe_create_global_var): Change
5759         subvar walking to an assertion that we don't have subvar'd variables.
5760
5761 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
5762
5763         PR C/25861
5764         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
5765         Use a new variable, inner.  PARM_DECLs are always non-weak.
5766
5767 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
5768
5769         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
5770         --disable-checking.
5771
5772 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
5773
5774         * config/mips/mips.md (*clear_upper32): New combiner pattern.
5775
5776 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
5777
5778         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
5779         (smax_insn, smin_insn, smax_0, smin_0): New.
5780
5781 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
5782
5783         PR target/25947
5784         * config/cris/cris.c (cris_order_for_addsi3): New function.
5785         * config/cris/cris-protos.h: Prototype it.
5786         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
5787         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
5788         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
5789         (split for "op.S1 [rx=rx+i],ry (swapped)")
5790         (split for "op(s|u).S1 [rx=rx+i],ry")
5791         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
5792         Apply cris_order_for_addsi3 when generating addsi3 insns.
5793
5794 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
5795
5796         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
5797         (TREE_BLOCK): Add call to EXPR_CHECK.
5798
5799 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
5800
5801         PR 25886
5802         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
5803         * tree-pretty-print.c (dump_omp_clause): Extract from ...
5804         (dump_omp_clauses): ... here.
5805         (dump_generic_node): Handle OMP_CLAUSE.
5806         * tree.c (omp_clause_num_ops): New.
5807         (omp_clause_code_name): New.
5808         (tree_code_size): Handle OMP_CLAUSE.
5809         (tree_size): Likewise.
5810         (make_node): Document handling of OMP_CLAUSE.
5811         (tree_node_structure): Handle OMP_CLAUSE.
5812         (omp_clause_check_failed): New.
5813         (omp_clause_range_check_failed): New.
5814         (omp_clause_operand_check_failed): New.
5815         (build_omp_clause): New.
5816         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
5817         * tree.h (enum omp_clause_code): Declare.
5818         (OMP_CLAUSE_SUBCODE_CHECK): Define.
5819         (OMP_CLAUSE_RANGE_CHECK): Define.
5820         (OMP_CLAUSE_ELT_CHECK): Define.
5821         (omp_clause_check_failed): Declare.
5822         (omp_clause_operand_check_failed): Declare.
5823         (omp_clause_range_check_failed): Declare.
5824         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
5825         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
5826         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
5827         (OMP_CLAUSE_LASTPRIVATE): Likewise.
5828         (OMP_CLAUSE_IF_EXPR): Likewise.
5829         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
5830         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
5831         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
5832         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
5833         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
5834         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
5835         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
5836         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
5837         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
5838         (OMP_CLAUSE_CODE): Define.
5839         (OMP_CLAUSE_SET_CODE): Define.
5840         (OMP_CLAUSE_CODE): Define.
5841         (OMP_CLAUSE_OPERAND): Define.
5842         (struct tree_omp_clause): Declare.
5843         (union tree_node): Add field 'omp_clause'.
5844         * treestruct.def (TS_OMP_CLAUSE): Define.
5845         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
5846         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
5847         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
5848         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
5849         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
5850         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
5851         (OMP_CLAUSE): Define.
5852         * print-tree.c (print_node): Handle OMP_CLAUSE.
5853         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
5854         * c-typeck.c: Likewise.
5855         * gimplify.c: Likewise.
5856         * c-omp.c: Likewise.
5857         * tree-nested.c: Likewise.
5858         * tree-inline.c: Likewise.
5859         * c-parser.c: Likewise.
5860         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
5861         clauses.
5862
5863 2006-01-25  Roger Sayle  <roger@eyesopen.com>
5864
5865         PR rtl-optimization/25703
5866         * combine.c (try_combine): Handle zero_extract and strict_low_part
5867         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
5868
5869 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
5870
5871         * global.c: Fix comment typos.
5872
5873 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
5874
5875         PR target/25758
5876         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
5877         Use output_addr_const instead of assemble_name.
5878
5879 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
5880
5881         * Makefile.in (sched-vis.o): Update dependencies.
5882         * haifa-sched.c (sched_finish): Clear current_sched_info.
5883         * cfg.c (dump_bb_info): New, split from dump_flow_info.
5884         (dump_flow_info): Call it.
5885         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
5886         a slim RTL dump.
5887         * basic-block.h (dump_bb_info): Declare.
5888         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
5889         option, and apply options only for dump files whose TDF_RTL,
5890         TDF_TREE, or TDF_IPA bits match.
5891         * rtl.h: Declare new functions exported from sched-vis.c.
5892         * sched-vis.c: Enable also if scheduling is not used.
5893         (print_value): Print the mode of registers if not inside scheduling.
5894         (print_insn): Make it work outside the scheduler.  Beautify the output
5895         a bit.
5896         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
5897
5898 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
5899
5900         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
5901         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
5902         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
5903         depending on the value of CONSTANT_POOL_ADDRESS_P.
5904         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
5905         SYMBOL_REF_DECL.
5906         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
5907         rather than SYMBOL_REF_DECL.
5908         (rtx_constant_pool): Remove const_rtx_sym_htab.
5909         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
5910         (init_varasm_status): Don't initialize const_rtx_sym_htab.
5911         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
5912         Remove handling of const_rtx_sym_htab.
5913         (find_pool_constant): Delete.
5914         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
5915         rather than find_pool_constant.
5916         (get_pool_constant_for_function): Delete.
5917         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
5918         find_pool_constant.
5919         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
5920         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
5921         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
5922         (SYMBOL_REF_CONSTANT): New macro.
5923         (get_pool_constant_for_function): Delete.
5924         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
5925         rather than SYMBOL_REF_DECL.
5926         (i386_pe_mark_dllimport): Likewise.
5927         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
5928         rather than SYMBOL_REF_DECL.
5929         * config/darwin.c (machopic_indirect_data_reference): Likewise.
5930         (machopic_indirect_call_target): Likewise.
5931
5932 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
5933
5934         * flow.c (delete_noop_moves): Add missing EOL to dump message.
5935
5936 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
5937
5938         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
5939
5940 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
5941
5942         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
5943
5944 2006-01-24  David Daney  <ddaney@avtrex.com>
5945
5946         PR java/25816
5947         * configure.ac (enable_tls): New enable option.
5948         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
5949         * configure: Regenerate.
5950         * doc/install.texi (--enable-tls): Document new option.
5951         (--disable-tls): Ditto.
5952
5953 2006-01-24  Richard Henderson  <rth@redehat.com>
5954
5955         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
5956         * alias.c (true_dependence): Respect it.
5957         (canon_true_dependence, write_dependence_p): Likewise.
5958         * builtins.c (get_builtin_sync_mem): Set it.
5959
5960 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
5961
5962         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
5963         efficient way.
5964
5965 2006-01-24  DJ Delorie  <dj@redhat.com>
5966
5967         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
5968         for storing constants in single-bit bitfields.
5969
5970 2006-01-25  Ben Elliston  <bje@au.ibm.com>
5971
5972         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
5973
5974 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
5975
5976         PR tree-opt/25860
5977         * tree-ssa-pre.c (phi_translate): Return NULL
5978         for AGGREGATE_TYPE's.
5979
5980 2006-01-24  Zack Weinberg  <zackw@panix.com>
5981
5982         * genautomata.c (process_state_for_insn_equiv_partition):
5983         Use xcalloc for insn_arcs_array.
5984         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
5985         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
5986
5987 2006-01-24  Richard Henderson  <rth@redhat.com>
5988
5989         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
5990         update all callers.
5991
5992 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
5993
5994         PR rtl-optimization/25890
5995         PR rtl-optimization/25905
5996         * combine.c (expand_compound_operation, expand_field_assignment):
5997         Fail if the bitfield's final position is out of bounds.
5998
5999 2006-01-24  Ian Lance Taylor  <ian@airs.com>
6000
6001         PR middle-end/25930
6002         * cgraphunit.c (cgraph_output_in_order): Don't clear
6003         cgraph_asm_nodes until after asm strings have been output.
6004
6005 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
6006
6007         * fix-header.c (read_scan_file): Add new parameter imultilib when
6008         calling register_include_chains.
6009
6010 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
6011
6012         * omp-low.c: Update documentation.
6013
6014 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
6015             Daniel Berlin  <dberlin@dberlin.org>
6016
6017         PR tree-opt/25315
6018         PR tree-opt/25857
6019         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
6020         return from the function.
6021
6022 2006-01-22  Zack Weinberg  <zackw@panix.com>
6023
6024         * rtl.def (match_code): Add second argument.
6025         * genpreds.c (write_extract_subexp): New function.
6026         (write_match_code): Add path argument.  Use write_extract_subexp.
6027         (write_predicate_expr): Pass path to write_match_code.
6028         (mark_mode_tests): MATCH_CODE applied to a subexpression does
6029         not perform a mode test.
6030         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
6031         a subexpression does not constrain the top-level code set.
6032         * read-rtl.c (read_rtx_variadic): New function.
6033         (read_rtx_1): Use it; allow AND and IOR to be variadic.
6034         * doc/md.texi: Document new notation.
6035         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
6036         (cmpsi_operand): ... here, using new notation.
6037
6038 2006-01-22  Zack Weinberg  <zackw@panix.com>
6039
6040         * varray.c: Remove GENERATOR_FILE #ifdefs.
6041
6042 2006-01-22  Zack Weinberg  <zackw@panix.com>
6043
6044         * genautomata.c (output_reserved_units_table): Emit nothing if
6045         description->query_units_num is zero.  Remove extra blank line.
6046         (output_cpu_unit_reservation_p): Short circuit
6047         if description->query_units_num is zero.
6048
6049 2006-01-22  Zack Weinberg  <zackw@panix.com>
6050
6051         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
6052         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
6053         nor any of the random handful of variables that used to be necessary
6054         when this program was linked with rtlanal.o.  Prune set of forward
6055         function declarations.
6056         (struct attr_desc): Remove static_p field.
6057         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
6058         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
6059         (attr_string): Do not read the character one past the length of
6060         the string.
6061         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
6062         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
6063         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
6064         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
6065         (make_automaton_attrs): New.
6066         (main): Do not call into genautomata.  Call local gen_bypass
6067         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
6068         Remove special case for insn_alts.
6069         * genautomata.c: Include gensupport.h; not genattrtab.h nor
6070         varray.h (leftover from previous change).  Prune set of forward
6071         function declarations.  Remove state_alts fields from all
6072         structures.  Remove state_alts_table from struct automaton.
6073         Make everything except main static.  Do not maintain num_dfa_decls.
6074         Do not maintain state_alts fields of various structures.
6075         (process_decls): Don't validate condexp for dm_insn_reserv decls.
6076         (add_arc): Remove state_alts argument.  All callers updated.
6077         (output_reserved_units_table): Emit #ifdef here...
6078         (output_tables): ...not here.  Don't generate state_alts tables.
6079         (expand_automata): Don't generate attributes.
6080         (write_automata): Don't generate state_alts functions.
6081         (main): New function.
6082         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
6083         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
6084         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
6085         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
6086         (BYPASS_P_FUNC_NAME, output_state_alts_table)
6087         (output_automata_list_state_alts_code, output_internal_state_alts_func)
6088         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
6089         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
6090         Delete.
6091         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
6092         * genattrtab.h: Delete file.
6093         * Makefile.in (OBJS-common): Add insn-automata.o.
6094         (insn-automata.o): New rule.
6095         (simple_generated_c): Add insn-automata.c.
6096         (build/genattrtab.o, build/genautomata.o): Update dependencies.
6097         (genprogmd): Add automata.
6098         (build/genattrtab): Needs no extra objects nor libraries.
6099         (build/genautomata): Needs build/vec.o and -lm.
6100
6101 2006-01-22  Zack Weinberg  <zackw@panix.com>
6102
6103         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
6104         (output_dfa_max_issue_rate, locked_states_num): Delete.
6105         (struct automaton): Add locked_states field.
6106         (output_dead_lock_vect): Save number of locked states in
6107         automaton->locked_states.  If it is zero, don't print anything.
6108         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
6109         (output_internal_dead_lock_func): Only test the dead_lock_vect
6110         for automata that have locked states.
6111         (output_statistics): Always print the number of locked states for
6112         each automaton.  Calculate total number of locked states here.
6113         (write_automata): Don't call output_dfa_max_issue_rate.
6114         * genattrtab.c: Define length_unit_log as a const variable.
6115         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
6116         max_insn_queue_index const.
6117         * final.c (length_unit_log): Declare const.
6118         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
6119
6120 2006-01-22  Zack Weinberg  <zackw@panix.com>
6121
6122         * genautomata.c:  Include vec.h, not varray.h.
6123         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
6124         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
6125         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
6126         VEC_* macros operating on appropriately typed vectors, or to
6127         malloced arrays when the size is known in advance.  Const-ify
6128         many char* variables and function arguments.  No functional changes.
6129         * Makefile.in (build/varray.o): Delete rule.
6130         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
6131         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
6132
6133 2006-01-22  Zack Weinberg  <zackw@panix.com>
6134
6135         * gensupport.c: Define get_insn_name and record_insn_name here.
6136         (read_md_rtx): Call record_insn_name as appropriate.
6137         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
6138         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
6139         * genpreds.c, genrecog.c: Don't define get_insn_name nor
6140         record_insn_name.
6141         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
6142         (BUILD_VARRAY): Delete.
6143         (genprognormal): Rename genprogmd.  Fold in all programs from
6144         genprognoprint; also attrtab.
6145         (build/genattrtab): Just mention genautomata.o and varray.o.
6146         Reorganize a bit, add comments to make the categories clearer.
6147
6148 2006-01-22  Zack Weinberg  <zackw@panix.com>
6149
6150         * genconditions.c (condition_table, add_condition): Delete.
6151         (write_conditions): Don't emit n_insn_conditions nor
6152         insn_elision_unavailable.  Issue the gcc version #ifdef here,
6153         inside the table, with no #else clause ...
6154         (write_header): ...not here.
6155         (write_writer): New function.
6156         (main): Don't initialize condition_table.  Use add_c_test.
6157         Call write_writer.
6158         * gensupport.c (init_md_reader_args_cb): Handle multiple input
6159         files on the command line.
6160         (maybe_eval_c_test): Don't check insn_elision_unavailable.
6161         Return -1 if there is no entry in the table, don't abort.
6162         (add_c_test, traverse_c_tests): New functions.
6163         * gensupport.h (insn_elision_unavailable, insn_conditions)
6164         (n_insn_conditions): Delete declarations.
6165         (add_c_test, traverse_c_tests): Declare.
6166         * read-rtl.c: Include gensupport.h.
6167         (read_conditions): New function.
6168         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
6169         (read_rtx_1): If we get EOF when we were looking for an initial
6170         open paren, return 0.  Call read_conditions when appropriate.
6171         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
6172         dummy-conditions.o.  Eliminate references to insn-conditions.o,
6173         or change them to build/gencondmd.o, as appropriate.  Remove
6174         insn-constants.h from $(simple_generated_h) and insn-conditions.c
6175         from $(simple_generated_c).  For all files remaining in those
6176         two lists, add insn-conditions.md to the generator command line.
6177         Give insn-constants.h/s-constants their own rules.  Add rules
6178         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
6179         (build/read-rtl.o): Depend on gensupport.h.
6180         (genprognormal): Include preds.
6181         (genprogearly): Rename genprognoprint; only difference is now that
6182         they don't link with $(BUILD_PRINT).
6183         * dummy-conditions.c: Delete.
6184
6185 2006-01-22  Zack Weinberg  <zackw@panix.com>
6186
6187         * genextract.c: Don't include insn-config.h.  Do include vec.h.
6188         Declare vectors of int, char, and locstr.
6189         (locstr): New typedef.
6190         (struct extraction): Make all array fields into bare pointers.
6191         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
6192         (insn_code_number): Delete.
6193         (accum_extract): New struct.
6194         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
6195         (gen_insn): Take insn_code_number as an argument.  Use an
6196         accum_extract structure instead of loading data directly into
6197         a struct extraction, and having to know how big it might get.
6198         (walk_rtx): Operate entirely on an accum_extract structure.
6199         (print_path): Avoid unnecessary use of printf.
6200         (print_header): New function, split out of main.  Distinguish
6201         more carefully between an unrecognizable insn and an insn that
6202         has the code number of a define_expand.
6203         (main): Pass insn_code_number to gen_insn.  Call print_header
6204         only after parsing.  Avoid unnecessary use of printf.
6205         * Makefile.in (build/vec.o): New rule.
6206         (build/genextract): Depend on build/vec.o.
6207         (build/genextract.o): Don't depend on insn-config.h.
6208
6209 2006-01-22  Zack Weinberg  <zackw@panix.com>
6210
6211         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
6212         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
6213         practical.  Eliminate per-generator-program link rules.
6214
6215 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
6216
6217         PR middle-end/24437
6218         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
6219         with a call expr to ...
6220         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
6221
6222 2006-01-23  Richard Guenther  <rguenther@suse.de>
6223
6224         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
6225         before make_edge with conditional EDGE_TRUE_VALUE.
6226
6227 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
6228         Jan Hubicka  <jh@suse.cz>
6229         Richard Guenther  <rguenther@suse.de>
6230
6231         PR rtl-optimization/25654
6232         * cfgexpand.c (aggregate_contains_union_type): New function.
6233         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
6234         for structure variables that contain a union type.
6235
6236 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
6237
6238         * gengtype.c (new_structure): Return the structure.
6239         (create_option): Add an extra "next" argument.
6240         (create_field): New function.
6241         (adjust_field_rtx_def): Use create_option and create_field.
6242         Remove a now-unnecessary call to find_structure.
6243         (adjust_field_tree_def): Likewise.
6244         (note_yacc_type): Remove an unnecessary call to find_structure.
6245         * gengtype.h (new_structure): Return the structure.
6246         (create_option): Add an extra argument.
6247         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
6248         (option): Adjust calls to create_option.
6249
6250 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
6251
6252         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
6253
6254 2006-01-22  Paul Brook  <paul@codesourcery.com>
6255         Peter Barada  <peter@the-baradas.com>
6256
6257         * config/m68k/m68k.md: Add Coldfire FPU support.
6258         Define FP mode macro and associated attributes.
6259         Use it for float mode patterns.
6260         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
6261         (LIBCALL_VALUE): Use m68k_libcall_value.
6262         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
6263         (m68k_function_value): Ditto.
6264         (emit_move_sequence): Ditto.
6265         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
6266         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
6267         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
6268         (MULTILIB_EXCEPTIONS): Ditto.
6269         * config/m68k/m68k.opt: Add mcfv4e.
6270         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
6271         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
6272         (m68k_output_function_prologue): Save ColdFire FPU registers.
6273         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
6274         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
6275         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
6276         ColdFire FPU registers.
6277         (m68k_libcall_value, m68k_function_value): New functions.
6278         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
6279         (LIBCALL_VALUE): Use m68k_libcall_value.
6280         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
6281         (MASK_COLDFIRE): Add MASK_CFV4E.
6282         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
6283         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
6284         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
6285         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
6286         (GO_IF_LEGITIMATE_ADDRESS): Use it.
6287         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
6288         * doc/invoke.tex: Document -mcfv4e on m68k.
6289
6290 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
6291
6292         * doc/contribute.texi: Change CVS to SVN and update the corresponding
6293         URL.
6294
6295 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
6296
6297         PR c++/16190
6298         * c-opts.c (c_common_handle_option): Don't include
6299         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
6300         * doc/invoke.texi (C++ Dialect Options): Document that
6301         -Wnon-virtual-dtor is no longer included in -Wall.
6302
6303 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
6304
6305         * gcov.c (print_version), gcov-dump.c (print_version),
6306         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
6307         dates.
6308
6309 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
6310
6311         * df-scan.c (problem_SCAN): Added NULL reset function.
6312         (df_scan_reset_blocks): Added code to call reset block function
6313         (df_bb_refs_delete) Fixed comment.
6314         (df_insn_refs_delete): Made tolerant of deleting non existent info
6315         for dataflow problems that need to be reset.
6316         * df-core.c (df_set_blocks): Ditto.
6317         * df.h (struct df_problem): Added reset_fun.
6318         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
6319         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
6320         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
6321         functions to clear out all references to def-use or use-def chains.
6322
6323 2006-01-21  Ben Elliston  <bje@au.ibm.com>
6324
6325         * varasm.c (assemble_real): Initialise data array.
6326
6327 2006-01-20  Paul Brook  <paul@codesourcery.com>
6328
6329         Merge from csl-arm-branch.
6330         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
6331         * config/arm/arm.md (movdi): Force operands[1] to a register
6332         if we have a non-register source.
6333         (*arm_movdi, *movdf_soft_insn): Require that one of the
6334         operands be a register.
6335         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
6336         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
6337
6338 2006-01-20  DJ Delorie  <dj@redhat.com>
6339
6340         * varasm.c (initialize_constant_valid_p): Allow pointers
6341         initialized from integer constants of lesser precision.
6342         (output_constant): Allow non-int-sized pointer modes to be
6343         initialized from integer constants.
6344
6345 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
6346
6347         PR libstdc++/25524
6348         * cppdefault.h (struct default_include): Add multilib flag.
6349         * cppdefault.c (cpp_include_defaults): Set it.
6350         * c.opt (-imultilib): New option.
6351         * c-opts.c (imultilib): New.
6352         (c_common_handle_option): Handle -imultilib.
6353         (c_common_post_options): Likewise.
6354         * c-incpath.c (add_standard_paths, register_include_chains):
6355         Likewise.
6356         * c-incpath.h (register_include_chains): Add extra parameter.
6357         * gcc.c (do_spec_1): Generate -imultilib option.
6358         (The Specs Language): Update %I description.
6359         (process_command): Update copyright notice.
6360         * doc/cppopts.texi (-imultilib): Document.
6361         * doc/invoke.texi (-imultilib): Include in option summary.
6362         (%I): Update specs documentation.
6363
6364 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
6365
6366         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
6367
6368 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
6369
6370         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
6371         label numbers.
6372
6373 2006-01-20  Richard Guenther  <rguenther@suse.de>
6374         Steven Bosscher <stevenb.gcc@gmail.com>
6375
6376         PR rtl-optimization/24626
6377         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
6378         EDGE_TRUE_VALUE if in RTL mode.
6379
6380         Revert
6381         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
6382         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
6383
6384 2006-01-20  Dirk Mueller  <dmueller@suse.com>
6385
6386         PR c++/5520
6387         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
6388         instead of a special NOP marker.
6389         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
6390         NOP marker handling.
6391         * c-common.h (empty_body_warning): Add forward declaration.
6392         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
6393         Now uses IS_EMPTY_STMT() instead of special NOP markers.
6394
6395 2006-01-20  Paul Brook  <paul@codesourcery.com>
6396
6397         * Makefile.in (lang_checks): Keep going if mkdir fails.
6398
6399 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
6400
6401         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
6402         be able to clean out basic block when not necessary.
6403         (df_scan_free): Fixed to properly delete information if df is
6404         unused before calling df_finish.
6405         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
6406         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
6407         or comment typos.
6408         (df_bb_refs_delete): New function.
6409         (df_refs_delete): Moved per block code to df_bb_refs_delete.
6410         * df-core.c (df_set_blocks): Added code to properly clean out
6411         unused blocks if they are not part of the blocks to consider.
6412         Added additional null check.
6413         (df_compact_blocks): Added basic block parameter to free_bb_fun to
6414         be able to clean out basic block when not necessary
6415         * df.h (df_free_bb_function): Ditto.
6416         (df_bb_refs_delete): New function.
6417         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
6418         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
6419         basic block parameter to be able to clean out basic block when not
6420         necessary.
6421         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
6422         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
6423         Fixed to properly delete information if df is unused before
6424         calling df_finish.
6425
6426 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
6427
6428         PR rtl-optimization/25799
6429         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
6430         Corrected confluence operator to remove bits from op2 before oring
6431         with op1 rather than removing bits from op1.
6432         (df_ru_transfer_function): Corrected test on wrong bitmap which
6433         caused infinite loop.  Both of these problems were introduced in
6434         the dataflow rewrite.
6435
6436 2006-01-19  DJ Delorie  <dj@redhat.com>
6437
6438         * reload1.c (find_reload_regs): Note the details of reload
6439         failures in the dump file.
6440         (spill_failure): Likewise.
6441
6442 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
6443
6444         * loop-iv.c: Include df.h and hashtab.h.
6445         (enum iv_grd_result): New enum.
6446         (DF_REF_IV, DF_REF_IV_SET): New macros.
6447         (struct biv_entry): New.
6448         (df, bivs): New global variables.
6449         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
6450         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
6451         Removed.
6452         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
6453         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
6454         analyzed_for_bivness_p, record_biv): New functions.
6455         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
6456         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
6457         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
6458         UD chains.
6459         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
6460         analysed.
6461         (iv_number_of_iterations): Use new interface to iv analysis.
6462         * loop-unroll.c: Do not include varray.h.
6463         (analyze_iv_to_split_insn): Use new interface to iv
6464         analysis.
6465         * loop-unswitch.c (may_unswitch_on): Ditto.
6466         * df.c (df_bitmaps_free): Only work for bbs for that structures are
6467         allocated.
6468         (df_bb_modify): Realloc tables to the new index.
6469         (df_find_use): New function.
6470         * df.h (df_find_use): Declare.
6471         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
6472         outmode.
6473         * cfgloop.h (struct rtx_iv): Remove analysed field.
6474         (iv_get_reaching_def): Removed.
6475         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
6476         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
6477         (loop-iv.o): Add df.h and hashtab.h dependency.
6478         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
6479
6480 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
6481
6482         PR target/25668
6483         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
6484         Double TFmode.
6485         (__floatundisf, __floatundidf): Likewise.
6486         * libgcc2.h (IS_IBM_EXTENDED): Define.
6487
6488 2006-01-19  DJ Delorie  <dj@redhat.com>
6489
6490         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
6491
6492 2006-01-19  Paul Brook  <paul@codesourcery.com>
6493
6494         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
6495         as nothrow when unwinding tables are disabled.
6496
6497 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6498
6499         PR testsuite/25171
6500         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
6501         of bit-field" when in system header.
6502
6503 2006-01-19  DJ Delorie  <dj@redhat.com>
6504
6505         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
6506         the 16 bit shift limit of the m16c.
6507
6508 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
6509
6510         PR target/22099
6511         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
6512         * config/i386/i386.c (output_set_got): Output the label if we have one
6513         for the TARGET_DEEP_BRANCH_PREDICTION case.
6514
6515 2006-01-19  Jan Hubicka  <jh@suse.cz>
6516             H.J. Lu  <hongjiu.lu@intel.com>
6517             Evandro Menezes <evandro.menezes@amd.com>
6518
6519         * invoke.texi (generic): Document
6520         (i686) Update.
6521         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
6522         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
6523         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
6524         (x86_use_incdec, x86_pad_returns): New variables
6525         (TARGET_CPU_DEFAULT_generic): New constant
6526         (TARGET_CPU_DEFAULT_NAMES): Add generic.
6527         (enum processor_type): Add generic32 and generic64.
6528         * i386.md (cpu attribute): Add generic32/generic64
6529         (movhi splitter): Behave sanely when both partial_reg_dependency and
6530         partial_reg_stall are set.
6531         (K8 splitters): Enable for generic as well.
6532         * predicates.md (incdec_operand): Use TARGET_INCDEC
6533         (aligned_operand): Avoid memory mismatch stalls.
6534         * athlon.md: Enable for generic64, new patterns for 128bit moves.
6535         * ppro.md: Enable for generic32
6536         * i386.c (generic64_cost, generic32_cost): New.
6537         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
6538         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
6539         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
6540         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
6541         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
6542         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
6543         x86_partial_reg_dependency, x86_memory_mismatch_stall,
6544         x86_accumulate_outgoing_args, x86_prologue_using_move,
6545         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
6546         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
6547         Enable for generic.
6548         (x86_use_incdec, x86_pad_returns): New.
6549         (override_options): Add generic32 and generic64, translate "generic"
6550         to generic32/generic64 and "i686" to "generic32", refuse
6551         "generic32"/"generic64" as arch target.
6552         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
6553         (ix86_reorg): Honor PAD_RETURNS.
6554
6555 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
6556
6557         * tree-pretty-print.c (dump_generic_node): Handle
6558         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
6559         * cgraph.c (cgraph_expand_queue): Rename from
6560         cgraph_analyze_queue.  Update all users.
6561         * cgraphunit.c (cgraph_assemble_pending_functions): Process
6562         cgraph_expand_queue.
6563         (cgraph_expand_all_functions): Likewise.
6564         (cgraph_finalize_pending_functions): Remove.  Update callers.
6565
6566         * tree.h (OMP_DIRECTIVE_P): Define.
6567         (OMP_PARALLEL_FN): Define.
6568         (OMP_PARALLEL_DATA_ARG): Define.
6569         (OMP_SECTIONS_SECTIONS): Define.
6570         * tree-pass.h (pass_expand_omp): Declare.
6571         * omp-low.c (struct omp_region): Declare.
6572         (struct omp_context): Remove fields 'parallel_type',
6573         'parallel_start_ix' and 'parallel_start_additional_args'.
6574         Update all users.
6575         (struct omp_for_data): Rename from struct expand_omp_for_data.
6576         (omp_regions): New static variable.
6577         (root_omp_region): New static variable.
6578         (find_omp_clause): Make static.
6579         (is_in_combined_parallel_ctx): Remove.
6580         (is_combined_parallel): New.
6581         (extract_omp_for_data): Move earlier in the file.
6582         (workshare_safe_to_combine_p): New.
6583         (get_ws_args_for): New.
6584         (determine_parallel_type): Move earlier in the file.
6585         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
6586         child function.
6587         (omp_copy_decl): Likewise.
6588         (create_omp_child_function): Likewise.
6589         (lookup_omp_region): New.
6590         (dump_omp_region): New.
6591         (debug_omp_region): New.
6592         (debug_all_omp_regions): New.
6593         (new_omp_region): New.
6594         (scan_omp_parallel): If parallel_nesting_level > 1, the
6595         directive is nested within another parallel directive.
6596         Set OMP_PARALLEL_FN.
6597         (scan_omp_for): Do not try to handle combined parallel+for
6598         cases.
6599         Remove FIXME comment.
6600         (scan_omp_nested): Remove.
6601         (scan_omp_1): Do not call scan_omp_nested when
6602         parallel_nesting_level is > 1.
6603         Do not change the DECL_CONTEXT of local variables found.
6604         (lookup_decl_in_outer_ctx): New.
6605         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
6606         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
6607         (lower_reduction_clauses): Rename from expand_reduction_clauses.
6608         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
6609         If CTX is nested, lookup VAR in the outer context when
6610         building copy assignment.
6611         (lower_send_clauses): Rename from expand_send_clauses.
6612         If CTX is nested, lookup VAR in the outer context when
6613         building copy assignments.
6614         (lower_send_shared_vars): Rename from expand_send_shared_vars.
6615         If CTX is nested, lookup VAR in the outer context when
6616         building copy assignments.
6617         (expand_parallel_call): Rename from build_parallel_call.
6618         Handle combined parallel+workshare cases.
6619         Re-implement to emit code into the CFG.
6620         (list2chain): New.
6621         (expand_omp_parallel): Re-implement to emit code into the CFG.
6622         Call move_sese_region_to_fn to outline the sub-graph
6623         containing the parallel region.
6624         (expand_omp_for_1): Remove.
6625         (expand_omp_for_generic): Re-implement to emit code into the
6626         CFG.
6627         (expand_omp_for_static_nochunk): Likewise.
6628         (expand_omp_for_static_chunk): Likewise.
6629         (expand_omp_for): Likewise.
6630         (expand_omp_sections): Likewise.
6631         (remove_exit_barriers): New.
6632         (expand_omp_synch): New.
6633         (expand_omp): New.
6634         (build_omp_regions_1): New.
6635         (build_omp_regions): New.
6636         (execute_expand_omp): New.
6637         (gate_expand_omp): New.
6638         (pass_expand_omp): Define.
6639         (lower_omp_sections): Rename from expand_omp_sections.
6640         Set OMP_SECTIONS_SECTIONS.
6641         (lower_omp_single_simple): Rename from expand_omp_single_simple.
6642         (lower_omp_single_copy): Rename from expand_omp_single_copy.
6643         (lower_omp_single): Rename from expand_omp_simple.
6644         (lower_omp_master): Rename from expand_omp_master.
6645         (lower_omp_ordered): Rename from expand_omp_ordered.
6646         (lower_omp_critical): Rename from expand_omp_critical.
6647         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
6648         (lower_omp_for): Re-implement.
6649         (lower_omp_parallel): Re-implement.
6650         (lower_regimplify): Rename from expand_regimplify.
6651         (lower_omp_1): Rename from expand_omp_1.
6652         If there are syntax errors in the program, replace every
6653         OpenMP directive with NOP.
6654         Call lower_omp_* instead of expand_omp_*.
6655         (lower_omp): Rename from expand_omp.
6656
6657         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
6658         * tree-gimple.h (enum omp_parallel_type): Remove.
6659         (gimple_boolify): Declare extern.
6660         (find_omp_clause, determine_parallel_type): Remove.
6661
6662         * gimple-low.c (lower_omp_directive): New.
6663         (lower_stmt): Call it.
6664         (record_vars_into): Move from ...
6665         (record_vars): ... here.
6666         Call record_vars_into with current_function_decl.
6667
6668         * gimplify.c (struct gimplify_ctx): Remove fields
6669         combined_pre_p and combined_ctxp.  Update users.
6670         (get_formal_tmp_var): Add documentation.
6671         (gimple_boolify): Make extern.
6672         (gimplify_expr_in_ctx): Remove.  Update callers.
6673         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
6674         will always be a BIND_EXPR.
6675         (gimplify_expr): Handle OMP_RETURN_EXPR.
6676         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
6677         (OMP_PARALLEL): Add 3 operands.
6678         (OMP_SECTIONS): Add 1 operand.
6679         (OMP_RETURN_EXPR): Define.
6680
6681         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
6682         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
6683         * tree-iterator.c (alloc_stmt_list): Assert that we are not
6684         creating a circular free list.
6685         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
6686
6687         * tree-flow.h (move_sese_region_to_fn): Declare.
6688         (record_vars_into): Declare.
6689         * tree-cfg.c (make_omp_sections_edges): New.
6690         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
6691         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
6692         OMP_SECTIONS and OMP_SECTION.
6693         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
6694         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
6695         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
6696         (gather_blocks_in_sese_region): New.
6697         (struct move_stmt_d): Declare.
6698         (move_stmt_r): New.
6699         (move_block_to_fn): New.
6700         (move_sese_region_to_fn): New.
6701
6702         * passes.c (init_optimization_passes): Schedule
6703         pass_expand_omp after pass_init_datastructures.
6704
6705         * tree-ssa-operands.c (get_expr_operands): Handle
6706         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
6707         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
6708
6709 2006-01-19  Jeff Law  <law@redhat.com>
6710
6711         * tree-vrp.c (extract_range_from_assert): Refine the result range
6712         if the variable referenced by the ASSERT_EXPR has a range and
6713         either the tentative result range or the previous range is a
6714         VR_ANTI_RANGE.
6715
6716 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
6717
6718         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
6719
6720 2006-01-19  Jan Hubicka  <jh@suse.cz>
6721
6722         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
6723
6724 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
6725
6726         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
6727         (expand_compound_operation, expand_field_assignment): Fail if the
6728         bit lengths of an extract operation are out of range.
6729         (make_extraction): Compute wanted_inner_mode based on the position
6730         and length of the extraction.  Make it extraction_mode for non-constant
6731         positions, and do not modify offset in that case.  When generating a
6732         new MEM, use a mode that can hold the extraction while keeping correct
6733         alignment.  Remove code that supported MEMs wrapped by USEs.
6734         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
6735
6736 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
6737
6738         * config/s390/s390.md ("Y", "y"): New mode attribute.
6739         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
6740         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
6741         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
6742         "*addsi3_imm_cc", "*addsi3_carry1_cc",
6743         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
6744         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
6745         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
6746         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
6747         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
6748         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
6749         "addsi3", "subsi3"): Insn patterns removed.
6750         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
6751         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
6752         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
6753         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
6754         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
6755         "*sub<mode>3_cconly2"): New insn patterns.
6756         ("addsi3", "subsi3"): New expanders.
6757
6758 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
6759
6760         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
6761         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
6762         existing STMT_VINFO_VECTYPE if available.
6763         (vect_mark_relevant): Add special handling for stmts that are
6764         marked as STMT_VINFO_IN_PATTERN_P.
6765         (vect_analyze_loop): Call vect_pattern_recog.
6766         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
6767         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
6768         stmt_info.
6769         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
6770         (vect_recog_func_ptr): New function-pointer type.
6771         * tree-vect-patterns.c: New file.
6772         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
6773         (vect_recog_dot_prod_pattern, vect_pattern_recog):
6774         (vect_pattern_recog_1): New functions.
6775         (vect_pattern_recog_funcs): New array of function pointers.
6776
6777         * tree-vectorizer.h (ternary_op): New enum value.
6778         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
6779         declaration. Revised documentation. Removed redundant dump prints.
6780         Removed redundant argument. Added support for reduction patterns.
6781         (vectorizable_reduction): Added support for reduction patterns.
6782         (vect_transform_stmt): Added support for patterns.
6783
6784         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
6785         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
6786         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
6787         (expand_widen_pattern_expr): New function.
6788         (init_optabs): Initialize new optabs udot_prod_optab,
6789         sdot_prod_optab.
6790         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
6791         (sdot_prod_optab, udot_prod_optab): Define new optabs.
6792         (expand_widen_pattern_expr): New function declaration.
6793         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
6794         tree-codes.
6795         * tree-inline.c (estimate_num_insns_1): Added cases for new
6796         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
6797         * tree-pretty-print.c (dump_generic_node): Likewise.
6798         (op_prio): Likewise.
6799         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
6800         * tree-ssa-operands.c (get_expr_operands): Added case for
6801         DOT_PROD_EXPR.
6802         * tree-vect-patterns.c (widened_name_p): New function.
6803         (vect_recog_dot_prod_pattern): Added function implementation.
6804         * tree-vect-transform.c (get_initial_def_for_reduction): Added
6805         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
6806         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
6807         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
6808
6809         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
6810         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
6811         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
6812         (init_optabs): Initialize new optabs widen_ssum_optab,
6813         widen_usum_optab.
6814         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
6815         (widen_ssum_optab, widen_usum_optab): Define new optabs.
6816         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
6817         use instead of type of def.
6818         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
6819         function implementation.
6820         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
6821         widen_ssumv8hi): New.
6822
6823         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
6824         patterns.
6825
6826 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
6827
6828         PR c/25805
6829         * c-decl.c (add_flexible_array_elts_to_size): New function.
6830         (finish_decl): Use it.
6831
6832 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
6833
6834         * diagnostic.h: Include options.h.
6835         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
6836         dependancies for diagnostic.h.
6837         * Makefile.in (DIAGNOSTIC_H): Add options.h.
6838
6839 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
6840
6841         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
6842         (ssa_ro_call_cache_valid): Ditto.
6843         * tree-ssa-alias.c (sort_tags_by_id): New function.
6844         (init_transitive_clobber_worklist): Ditto.
6845         (add_to_worklist): Ditto.
6846         (mark_aliases_call_clobbered): Ditto.
6847         (compute_tag_properties): Ditto.
6848         (set_initial_properties): Ditto.
6849         (compute_call_clobbered): Ditto.
6850         (compute_may_aliases):  Call compute_call_clobbered and grouping.
6851         (compute_flow_sensitive_aliasing): Remove clobbering related code.
6852         (compute_flow_insensitive_aliasing): Grouping now happens in our
6853         caller.
6854         (setup_pointers_and_addressables): Remove clobbering related code.
6855         (add_may_alias): Ditto.
6856         (replace_may_alias): Ditto.
6857         (get_nmt_for): Ditto.
6858         (create_global_var):
6859         (is_escape_site): Return an escape_type enumeration.
6860         * tree-flow-inline.h (is_call_clobbered):  Global var does not
6861         imply call clobbered.
6862         (mark_call_clobbered): Take a reason for marking this. Remove
6863         marking of globalness, and cache invalidation.
6864         (clear_call_clobbered): Remove cache invalidation code.
6865         * tree-dfa.c (dump_variable): If details is on, dump the reason
6866         for escaping.
6867         * tree-outof-ssa.c (create_temp): Copy escape mask from original
6868         variable.
6869         * tree-flow.h (struct ptr_info_def): Add escape mask member.
6870         (struct var_ann_d): Ditto.
6871         (enum escape_type): New.
6872         (mark_call_clobbered): Adjust prototype.
6873         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
6874         are never call clobbered.
6875         Record reasons for escaping.
6876         * tree-ssa-structalias.h (is_escape_site): Update prototype.
6877         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
6878         (ssa_ro_call_cache_valid): Ditto.
6879         (clobbered_v_may_defs): Ditto.
6880         (clobbered_vuses): Ditto.
6881         (ro_call_vuses): Ditto.
6882         (clobber_stats): New.
6883         (init_ssa_operands): Zero out clobber stats.
6884         (fini_ssa_operands): Print out clobber stats.
6885         (get_call_expr_operands): Pass callee fndecl to
6886         add_call_read_ops).
6887         (add_call_clobber_ops): Remove use of cache.
6888         Add use of PURE_CONST information.
6889         (add_call_read_ops): Remove use of cache.
6890         Add use of static not_read information.
6891
6892 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
6893
6894         Introduce TLS descriptors for i386 and x86_64.
6895         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
6896         (TARGET_ANY_GNU_TLS): New macro.
6897         (enum tls_dialect): Added TLS_DIALECT_GNU2.
6898         (struct machine_function): Add tls_descriptor_call_expanded_p.
6899         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
6900         (ix86_current_function_calls_tls_descriptor): Likewise.
6901         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
6902         (override_options): Introduce gnu2 tls dialect.
6903         (ix86_frame_pointer_required): Functions containing TLSCALLs are
6904         not leaves.
6905         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
6906         Likewise.
6907         (legitimize_tls_address): Adjust logic for GNU2 TLS.
6908         (ix86_init_machine_status): Initialize new field.
6909         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
6910         (ix86_tls_module_base): New.
6911         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
6912         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
6913         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
6914         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
6915         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
6916         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
6917         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
6918         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
6919         * config/i386/predicates.md (tls_modbase_operand): New.
6920         (tp_or_register_operand): New.
6921
6922 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
6923
6924         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
6925         (look_for_address_of): Ditto.
6926         (ipa_init): Walk the function decls.
6927         (static_execute): Don't set readonly on FUNCTION_DECL's.
6928
6929 2006-01-18  Roger Sayle  <roger@eyesopen.com>
6930
6931         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
6932         for shifts where the source and destination registers are different.
6933
6934 2006-01-18  Paul Brook  <paul@codesourcery.com>
6935
6936         Merge from csl-arm-branch.
6937         2005-03-14  Julian Brown  <julian@codesourcery.com>
6938         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
6939         (aeabi_llsl): Likewise.
6940         (ashrdi3): Likewise.
6941         (aeabi_lasr): Likewise.
6942         (lshrdi3): Likewise.
6943         (aeabi_llsr): Likewise.
6944         2005-03-10  Julian Brown  <julian@codesourcery.com>
6945         * config.gcc: Disable shared libgcc for SymbianOS.
6946         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
6947
6948 2006-01-18  DJ Delorie  <dj@redhat.com>
6949
6950         * c-pragma.c (handle_pragma_diagnostic): New.
6951         (init_pragma): Register it.
6952         * doc/extend.texi: Document it.
6953
6954         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
6955         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
6956         (diagnostic_context): Add classify_diagnostic[].
6957         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
6958         as errors if they're overridden to DK_WARNING.
6959         (diagnostic_initialize): Initialize classify_diagnostic[].
6960         (diagnostic_set_kind_override): New.
6961         (diagnostic_report_diagnostic): Check for kind changes.
6962         * opts.c (common_handle_option): Take lang_mask.  Update callers.
6963         Handle OPT_Werror_.
6964         * common.opt (Werror=): New.
6965         * doc/invoke.texi: Document -Werror=*
6966
6967 2006-01-18  Jeff Law  <law@redhat.com>
6968
6969         * tree-vrp.c (test_for_singularity): Correct test for new
6970         min limit.  Use operand_equal_p rather than pointer equality
6971         for testing if new min/max values are equal.
6972
6973         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
6974         using range information until after propagation and folding.
6975
6976 2006-01-18  Richard Henderson  <rth@redhat.com>
6977             Aldy Hernandez  <aldyh@redhat.com>
6978             Jakub Jelinek  <jakub@redhat.com>
6979             Diego Novillo  <dnovillo@redhat.com>
6980
6981         * omp-low.c: New file.
6982         * c-omp.c: New file.
6983
6984 2006-01-18  Richard Henderson  <rth@redhat.com>
6985             Jakub Jelinek  <jakub@redhat.com>
6986             Diego Novillo  <dnovillo@redhat.com>
6987
6988         * doc/invoke.texi: Document -fopenmp.
6989         * tree-dump.h (debug_function): Declare.
6990         * hooks.c (hook_bool_tree_bool_false): New function.
6991         (hook_tree_tree_null): Remove.
6992         (hook_tree_tree_tree_null): New.
6993         * hooks.h: Update to match.
6994         * tree-pretty-print.c (debug_tree_chain): New.
6995         (print_generic_expr): Handle TDF_CHAIN.
6996         (dump_generic_node): Handle BLOCK.
6997         Do not abort with incomplete SWITCH_EXPRs.
6998         Do not dump body of an OpenMP directive if TDF_SLIM is given.
6999         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
7000         print space after directive name.
7001         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
7002         Handle OMP_MASTER and OMP_ORDERED.
7003         Handle printing of OMP_BODY just in one place, goto
7004         dump_omp_body in the rest of OMP_* nodes that have
7005         OMP_BODY.
7006         Don't handle clause nodes here.  Update omp statements to
7007         use dump_omp_clauses.
7008         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
7009         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
7010         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
7011         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
7012         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
7013         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
7014         Adjust output for GOMP_PARALLEL.
7015         (dump_omp_clauses): New.
7016         (print_declaration): Dump DECL_VALUE_EXPR.
7017         (op_symbol_1): Split out of op_symbol.
7018         (dumping_stmts): Remove.  Update all users.
7019         * cgraph.c (cgraph_analyze_queue): New.
7020         (cgraph_add_new_function): New.
7021         * cgraph.h (cgraph_analyze_queue): Declare.
7022         (cgraph_add_new_function): Declare.
7023         (cgraph_lower_function): Remove.
7024         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
7025         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
7026         and TYPE_P nodes in its default clause.
7027         (empty_body_p): New.
7028         (tree_range_check_failed): New.
7029         (build5_stat): New.
7030         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
7031         OMP_CLAUSE_REDUCTION_MERGE,
7032         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
7033         OMP_CLAUSE_PRIVATE_DEBUG,
7034         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
7035         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
7036         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
7037         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
7038         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
7039         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
7040         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
7041         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
7042         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
7043         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
7044         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
7045         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
7046         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
7047         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
7048         (TREE_RANGE_CHECK): New.
7049         (empty_body_p): Declare.
7050         (enum omp_clause_default_kind): New.
7051         (build_string_literal): Declare.
7052         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
7053         (build5_stat, build5): Declare.
7054         * tree-pass.h (TDF_CHAIN): Define.
7055         * tree-pass.h (PROP_gimple_lomp): Define.
7056         (pass_lower_omp): Declare.
7057         * diagnostic.h (debug_tree_chain): Declare.
7058         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
7059         mode_for_size.
7060         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
7061         * builtins.c (build_string_literal): Make extern.
7062         * gcc.c (include_spec_function): New.
7063         (static_spec_functions): Add it.
7064         (main): Move load of libgomp.spec ...
7065         (LINK_COMMAND_SPEC): ... here.
7066         (link_gomp_spec): New.
7067         (static_specs): Include it.
7068         (LINK_COMMAND_SPEC): Add link_gomp.
7069         (GOMP_SELF_SPECS): New.
7070         (driver_self_specs): Include it.
7071         (switch_matches): Don't mark inline.
7072         (main): Load libgomp.spec.
7073         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
7074         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
7075         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
7076         * tree-gimple.h (enum omp_parallel): Declare.
7077         (determine_parallel_type): Declare.
7078         (omp_firstprivatize_variable): Declare.
7079         (omp_reduction_init): Declare.
7080         (diagnose_omp_structured_block_errors): Declare.
7081         (struct walk_stmt_info): Add want_return_expr.
7082         (struct walk_stmt_info): Add want_bind_expr, want_locations.
7083         (find_omp_clause): Declare.
7084         (insert_field_into_struct): Declare.
7085         (struct walk_stmt_info): Move from tree-nested.c
7086         (walk_stmts): Declare.
7087         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
7088         to 200505.
7089         * cgraphunit.c (cgraph_lower_function): Make static.
7090         (cgraph_finalize_pending_functions): New.
7091         (cgraph_finalize_function): Call it.
7092         (cgraph_finalize_compilation_unit): Likewise.
7093         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
7094         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
7095         (BT_FN_UINT_UINT): New.
7096         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
7097         DEF_FUNCTION_TYPE_VAR_4): Document.
7098         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
7099         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
7100         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
7101         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
7102         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
7103         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
7104         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
7105         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
7106         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
7107         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
7108         into separate files.
7109         (DEF_GOMP_BUILTIN): New.
7110         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
7111         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
7112         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
7113         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
7114         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
7115         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
7116         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
7117         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
7118         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
7119         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
7120         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
7121         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
7122         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
7123         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
7124         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
7125         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
7126         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
7127         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
7128         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
7129         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
7130         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
7131         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
7132         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
7133         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
7134         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
7135         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
7136         * sync-builtins.def: New file, moved from builtins.def.
7137         * omp-builtins.def: New file, moved from builtins.def.
7138         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
7139         * gimple-low.c (lower_function_body): Clear data.
7140         (lower_stmt): Do not handle COMPOUND_EXPR.
7141         Remove call to print_node_brief.
7142         * c-tree.h (c_finish_omp_clauses): New prototype.
7143         (C_DECL_THREADPRIVATE_P): Define.
7144         (lookup_name_no_remap, c_omp_remap_private): Remove
7145         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
7146         (check_for_loop_decls): Update decl.
7147         (lookup_name_no_remap, c_omp_remap_private): Declare.
7148         (build_indirect_ref, build_modify_expr, pushdecl,
7149         pushdecl_top_level): Move to c-common.h.
7150         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
7151         before the switch, but just in the 2 places that need it.
7152         * c-decl.c (diagnose_mismatched_decls): Do not check for
7153         mismatched thread-local attributes when OLDDECL is marked
7154         threadprivate and NEWDECL has no thread-local attributes.
7155         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
7156         (c_gimple_diagnostics_recursively): Rename from
7157         c_warn_unused_result_recursively.  Invoke
7158         diagnose_omp_structured_block_errors.
7159         (check_for_loop_decls): Return a singular decl found.
7160         * langhooks.c (lhd_omp_predetermined_sharing): Return
7161         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
7162         (lhd_omp_firstprivatize_type_sizes): New.
7163         (lhd_omp_assignment): New.
7164         (lhd_omp_predetermined_sharing): New.
7165         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
7166         (struct lang_hooks_for_types): Add
7167         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
7168         omp_predetermined_sharing, omp_disregard_value_expr,
7169         omp_private_debug_clause, omp_clause_default_ctor,
7170         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
7171         (c_finish_omp_clauses): New.
7172         (c_finish_bc_stmt): Diagnose break within omp for.
7173         (c_begin_omp_parallel, c_finish_omp_parallel): New.
7174         (build_unary_op): Return error_mark after reporting
7175         a readonly_error.
7176         (build_modify_expr): Likewise.
7177         * gimplify.c: Include optabs.h and pointer-set.h.
7178         (enum gimplify_omp_var_data): Declare.
7179         (struct gimplify_omp_ctx): Declare.
7180         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
7181         and combined_ctxp.
7182         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
7183         (push_gimplify_context, pop_gimplify_context): Allow nesting.
7184         (splay_tree_compare_decl_uid): New.
7185         (new_omp_context): New.
7186         (delete_omp_context): New.
7187         (gimple_add_tmp_var): Call omp_add_variable.
7188         (gimplify_bind_expr): Likewise.
7189         (gimplify_var_or_parm_decl): If omp_notice_variable returned
7190         true, disregard DECL_VALUE_EXPR on the decl if any.
7191         (gimplify_expr_in_ctx): New.
7192         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
7193         omp_add_variable, omp_notice_variable, omp_is_private
7194         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
7195         gimplify_adjust_omp_clauses, gimplify_omp_parallel
7196         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
7197         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
7198         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
7199         gimplify_omp_atomic): New.
7200         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
7201         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
7202         OMP_CRITICAL and OMP_ATOMIC.
7203         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
7204         * c-pragma.h (enum pragma_kind): Add
7205         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
7206         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
7207         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
7208         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
7209         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
7210         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
7211         PRAGMA_OMP_THREADPRIVATE.
7212         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
7213         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
7214         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
7215         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
7216         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
7217         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
7218         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
7219         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
7220         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
7221         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
7222         * tree-ssa-dce.c (find_control_dependence): Do not assume that
7223         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
7224         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
7225         OpenMP directives.
7226         (struct nesting_info): Add field_map,
7227         suppress_expansion, debug_var_chain.
7228         (create_nesting_tree): Initialize them.
7229         (lookup_field_for_decl): Use field_map.
7230         (get_nonlocal_debug_decl, get_local_debug_decl): New.
7231         (convert_local_omp_clauses): New.
7232         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
7233         (walk_body): Split out of walk_function.
7234         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
7235         (convert_nonlocal_reference): Handle omp statements.
7236         (convert_local_reference): Likewise.
7237         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
7238         (unnest_nesting_tree): New.
7239         (lower_nested_functions): Call it.
7240         (insert_field_into_struct): Make extern.
7241         (struct walk_stmt_info): Move to tree-gimple.h.
7242         (walk_stmts): Make extern.
7243         * omp-builtins.def: New file.
7244         * tree-iterator.c (expr_only): Clarify comment.
7245         * c-common.h (pushdecl_top_level, pushdecl,
7246         build_modify_expr, build_indirect_ref,
7247         c_finish_omp_master, c_finish_omp_critical,
7248         c_finish_omp_ordered, c_finish_omp_barrier,
7249         c_finish_omp_atomic, c_finish_omp_flush,
7250         c_finish_omp_for, c_split_parallel_clauses,
7251         omp_clause_default_kind, c_omp_sharing_predetermined,
7252         c_omp_remap_decl): Declare.
7253         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
7254         (OBJS-common): Add omp-low.o.
7255         (c-omp.o, omp-low.o): Add.
7256         (gimplify.o): Add dependency on $(OPTABS_H).
7257         (GTFILES): Add omp-low.c.
7258         (gt-stringpool.h): Add.
7259         * tree-cfg.c (set_bb_for_stmt): Do not update the
7260         block-to-labels map if we are currently expanding to RTL.
7261         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
7262         checks.
7263         Handle IDENTIFIER_NODE.
7264         (tree_verify_flow_info): Do not ICE when emitting error
7265         messages about invalid labels.
7266         (dump_function_to_file): Reset CFUN before emitting the body
7267         of the function.
7268         (debug_function): New.
7269         * passes.c (init_optimization_passes): Schedule
7270         pass_lower_omp.
7271         * langhooks-def.h (lhd_omp_predetermined_sharing,
7272         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
7273         Declare.
7274         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
7275         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
7276         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
7277         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
7278         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
7279         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
7280         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
7281         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
7282         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
7283         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
7284         (LANG_HOOK_DECLS): Use them.
7285
7286 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
7287             Richard Henderson  <rth@redhat.com>
7288             Jakub Jelinek  <jakub@redhat.com>
7289             Diego Novillo  <dnovillo@redhat.com>
7290
7291         * c-parser.c (pragma_omp_clause): Define.
7292         (c_parser_declaration_or_fndef): Document OpenMP syntax.
7293         (c_parser_compound_statement): Likewise.
7294         (c_parser_statement): Likewise.
7295         (c_parser_pragma): Handle omp pragmas.
7296         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
7297         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
7298         (c_parser_omp_clause_name, check_no_duplicate_clause,
7299         c_parser_omp_variable_list,
7300         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
7301         c_parser_omp_clause_copyprivate,
7302         c_parser_omp_clause_default,
7303         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
7304         c_parser_omp_clause_lastprivate,
7305         c_parser_omp_clause_nowait,
7306         c_parser_omp_clause_num_threads,
7307         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
7308         c_parser_omp_clause_reduction,
7309         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
7310         c_parser_omp_all_clauses, c_parser_omp_structured_block,
7311         c_parser_omp_atomic, c_parser_omp_barrier,
7312         c_parser_omp_critical, c_parser_omp_flush,
7313         c_parser_omp_for_loop, c_parser_omp_for,
7314         c_parser_omp_master, c_parser_omp_ordered,
7315         c_parser_omp_sections_scope, c_parser_omp_sections,
7316         c_parser_omp_parallel, c_parser_omp_single,
7317         c_parser_omp_construct, c_parser_omp_threadprivate): New.
7318         * c-pragma.c (init_pragma): Do omp pragma registration here.
7319         * c.opt (fopenmp): New flag.
7320
7321 2006-01-18  Eric Christopher  <echristo@apple.com>
7322
7323         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
7324         * config/darwin.h (GOMP_SELF_SPECS): Define.
7325
7326 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
7327
7328         * rtl.h: Remove the prototype for reg_alloc.
7329
7330 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7331
7332         PR target/25731
7333         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
7334         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
7335         sjlj and dwarf2 exception handling.
7336         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
7337         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
7338         * pa/pa.c (function_value): Treat complex and vector types as
7339         aggregates.
7340         (function_arg): Likewise.  Only pass scalar floats in the floating
7341         point argument registers.
7342         * pa/t-slibgcc-dwarf-ver: New file.
7343         * pa/t-slibgcc-sjlj-ver: New file.
7344         * pa/t-slibgcc-elf-ver: Delete file.
7345
7346 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
7347
7348         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
7349         unlikely_test_section_p test.
7350
7351 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
7352
7353         * mode-switching.c (optimize_mode_switching): Make it static.
7354         * basic-block.h: Remove the prototype for
7355         optimize_mode_switching.
7356
7357         * modulo-sched.c (sms_schedule): Make it static.
7358         * rtl.h: Remove the prototype for sms_schedule.
7359
7360         * postreload-gcse.c (gcse_after_reload_main): Make it static.
7361         * rtl.h: Remove the prototype for gcse_after_reload_main.
7362
7363         * reg-stack.c (reg_to_stack): Make it static.
7364         * rtl.h: Remove the prototype for reg_to_stack.
7365
7366         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
7367         Make them static.
7368         * rtl.h: Remove the prototypes for regrename_optimize and
7369         copyprop_hardreg_forward.
7370
7371 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
7372
7373         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
7374         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
7375         Test against the appropriate null constant for the mode.
7376         If 'fixup_overlap' is true, swap the operands if they overlap.
7377         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
7378         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
7379         alpha_split_tmode_pair and adjust for above change.
7380         * config/alpha/alpha.md (movtf_internal): Adjust call to
7381         alpha_split_tfmode_pair and rely on it to swap the operands.
7382         (movti_internal): New insn and post-reload splitter.
7383         (movti): New expander.
7384
7385 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
7386
7387         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
7388         operands.
7389
7390 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
7391
7392         * rtlanal.c (global_reg_mentioned_p_1,
7393         global_reg_mentioned_p): Remove.
7394         * rtl.h: Remove the prototype for global_reg_mentioned_p.
7395
7396         * flow.c (initialize_uninitialized_subregs): Make it static.
7397         * rtl.h: Remove the prototype for
7398         initialize_uninitialized_subregs.
7399
7400         * function.c (instantiate_virtual_regs): Make it static.
7401         * function.h: Remove the prototype for
7402         instantiate_virtual_regs.
7403
7404         * regmove.c (regmove_optimize, combine_stack_adjustments):
7405         Make them static.
7406         * rtl.h: Remove the prototypes for regmove_optimize and
7407         combine_stack_adjustments.
7408
7409 2006-01-17  Roger Sayle  <roger@eyesopen.com>
7410
7411         * config/i386/i386.c (COSTS_N_BYTES): New macro.
7412         (size_cost): Encode costs in bytes so that a reg-reg addition is
7413         equivalent to COSTS_N_INSNS(1).
7414         (override_options): Use the size_cost.branch_cost as the default
7415         ix86_branch_cost when optimizing for size.
7416
7417 2006-01-18  Ben Elliston  <bje@au.ibm.com>
7418
7419         * Makefile.in (D32PBIT_FUNCS): New.
7420         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
7421         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
7422         D64PBIT_FUNCS and D128PBIT_FUNCS.
7423         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
7424         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
7425         D128PBIT are set.
7426         (decnumber_dep): Define.
7427         * doc/libgcc.texi (Decimal float library routines): New node.
7428         * config/dfp-bit.h, config/dfp-bit.c: New files.
7429
7430 2006-01-18  Ben Elliston  <bje@au.ibm.com>
7431
7432         * expr.c (emit_move_change_mode): Always adjust addresses, not
7433         just during reload.  Copy replacements only during reload.
7434         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
7435         emit_move_via_integer.
7436
7437 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
7438
7439         * Makefile.in (check-%, check-consistency): Use $${srcdir}
7440         instead of $(srcdir) and ${srcdir}.
7441
7442 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
7443
7444         PR target/592
7445         PR middle-end/11135
7446         * arm.h (struct machine_function): Add pic_reg.
7447         * arm.c (arm_pic_register): Make unsigned.
7448         (arm_override_options): Only set arm_pic_register if
7449         TARGET_SINGLE_PIC_BASE.
7450         (use_return_insn): Only test for a pic register if it is fixed.
7451         (arm_compute_save_reg0_reg12_mask): Likewise.
7452         (thumb_compute_save_reg_mask): Likewise.
7453         (legitimate_pic_operand): Factor out some known invariants.
7454         (legitimize_pic_address): If we don't have a fixed pic register,
7455         then set up a pseudo in the function entry sequence.  Handle the
7456         pic base being in a pseudo.
7457         (arm_load_pic_register): Handle the pic register being in a pseudo.
7458         (arm_expand_prologue): Only set up the pic register if it is fixed.
7459         (thumb_expand_prologue): Likewise.
7460         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
7461         (pic_load_addr_based_insn): Likewise.
7462         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
7463         fixed.
7464
7465 2006-01-18  Ben Elliston  <bje@au.ibm.com>
7466
7467         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
7468         decimal float modes for all floating point registers.
7469
7470         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
7471         match_code "mem" with match_test "macho_lo_sum_memory_operand".
7472
7473 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
7474
7475         PR c/25682
7476         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
7477         even when the pointer is not NULL.
7478
7479 2006-01-16  Ian Lance Taylor  <ian@airs.com>
7480
7481         * common.opt (ftoplevel-reorder): New option.
7482         * cgraph.c (cgraph_asm_nodes): New global variable.
7483         (cgraph_asm_last_node): New static variable.
7484         (cgraph_order): New global variable.
7485         (cgraph_create_node): Set new order field.
7486         (cgraph_varpool_node): Likewise.
7487         (decide_is_variable_needed): Return true if not
7488         flag_toplevel_reorder.
7489         (cgraph_add_asm_node): New function.
7490         * cgraph.h (struct cgraph_node): Add order field.
7491         (struct cgraph_varpool_node): Add order field.
7492         (struct cgraph_asm_node): Define.
7493         (cgraph_asm_nodes, cgraph_order): Declare.
7494         (cgraph_add_asm_node): Declare.
7495         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
7496         function.
7497         (cgraph_varpool_assemble_pending_decls): Call it.
7498         (cgraph_output_pending_asms): New static function.
7499         (cgraph_finalize_compilation_unit): Call it.
7500         (struct cgraph_order_sort): Define.
7501         (cgraph_output_in_order): New static function.
7502         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
7503         !flag_toplevel_reorder case.
7504         * c-parser.c: Include "cgraph.h".
7505         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
7506         assemble_asm.
7507         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
7508         than -fno-unit-at-a-time.
7509         * doc/invoke.texi (Option Summary): Mention
7510         -fno-toplevel-reorder.
7511         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
7512         -funit-at-a-time documentation.
7513
7514 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
7515             Kazu Hirata  <kazu@codesourcery.com>
7516
7517         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
7518
7519 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
7520
7521         * Makefile.in (FUNCTION_H): New.  Use it instead of
7522         function.h throughout the file.
7523         * function.h: Include tree.h.
7524
7525 2006-01-17  Ben Elliston  <bje@au.ibm.com>
7526
7527         * recog.c: Separate some functions with whitespace.
7528
7529 2006-01-16  Richard Henderson  <rth@redhat.com>
7530
7531         Merge from gomp branch:
7532         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
7533         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
7534         and rename from struct inline_data.  Rename callee* to dst*;
7535         caller* to src*; add copy_decl hook, transform_call_graph_edges,
7536         transform_new_cfg, transform_return_to_modify, and
7537         transform_lang_insert_block flags; remove cloning_p, versioning_p,
7538         update_clones_p.
7539         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
7540         (copy_decl_for_dup): Remove.
7541         * tree-inline.c (struct inline_data): Move to header.
7542         (insert_decl_map): Export.
7543         (remap_decl): Update for member name changes.  Use copy_decl hook.
7544         Allow for replacement to be a non-decl.  Remove dead code.
7545         (remap_type_1): Check for existing mapping.
7546         (remap_type): Export.
7547         (remap_decls): Update for member name changes.
7548         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
7549         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
7550         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
7551         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
7552         (tree_function_versioning, build_duplicate_type): Likewise.
7553         (copy_body_r): Likewise.  Export.
7554         (copy_decl_for_dup): Split into ...
7555         (copy_decl_for_dup_finish, copy_decl_to_var,
7556         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
7557         (replace_ref_tree, inlining_p): Remove.
7558
7559 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
7560
7561         * ifcvt.c (if_convert): Make it static.
7562         * rtl.h: Remove the prototype for if_convert.
7563
7564         * local-alloc.c (local_alloc): Make it static.
7565         * rtl.h: Remove the prototype for local_alloc.
7566
7567         * loop.c (loop_optimize): Make it static.
7568         * cfgloop.h: Remove the prototype for loop_optimize.
7569         * rtl.h: Likewise.
7570
7571 2006-01-16  DJ Delorie  <dj@redhat.com>
7572
7573         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
7574         mems.
7575
7576 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7577
7578         * pa.md: Disparage copies between general and floating-point registers
7579         in 32-bit move patterns.
7580
7581 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
7582
7583         PR testsuite/25741
7584         * Makefile.in (check-%): Depend on site.exp instead of
7585         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
7586         directories.
7587
7588 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
7589
7590         * global.c (global_alloc): Make it static.
7591         * rtl.h: Remove the prototype for global_alloc.
7592
7593 2006-01-16  Richard Guenther  <rguenther@suse.de>
7594
7595         * tree-ssa-alias.c (struct used_part): Add write_only field.
7596         (get_or_create_used_part_for): Initialize it to true.
7597         (create_overlap_variables_for): Don't create structure variables
7598         for structures that only are written to.
7599         (find_used_portions): Handle MODIFY_EXPR to track whether a
7600         structure is only written to.
7601
7602 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
7603
7604         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
7605         static.
7606         * basic-block.h: Remove the prototype for
7607         partition_hot_cold_basic_blocks.
7608
7609 2006-01-16  Rafael Ãvila de EspÃï¿½ndola <rafael.espindola@gmail.com>
7610
7611         * cppspec.c (lang_specific_spec_functions): Remove.
7612         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
7613         * gcc.h (lang_specific_spec_functions): Remove.
7614         * gccspec.c (lang_specific_spec_functions): Remove.
7615
7616 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
7617
7618         * combine.c (record_value_for_reg): Invalidate registers
7619         if INSN is null.
7620         (record_dead_and_set_regs_1): Likewise, by passing them to
7621         record_value_for_reg.
7622         (record_dead_and_set_regs): Invalidate stores made by a
7623         call.  We do not combine across a call, but we still
7624         relied on equivalences.
7625
7626 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7627
7628         * tree-vrp.c (extract_range_from_binary_expr): Cope with
7629         vrp_int_const_binop returning non-constant nodes.
7630
7631 2006-01-16  Paul Brook  <paul@codesourcery.com>
7632
7633         * config/m68k/m68k.c (output_move_const_into_data_reg):
7634         Output correct mnemonic for mvz and mvs.
7635
7636 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
7637
7638         * rtl-factoring.c: Add sequence abstraction algorithm.
7639         * cfgcleanup.c (outgoing_edges_match): Extra checks.
7640         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
7641         ABNORMAL edges.
7642         (block_has_preserve_label): New function.
7643         * common.opt: Register new pass.
7644         * Makefile.in: Ditto.
7645         * passes.c: Ditto.
7646         * timevar.def: Ditto.
7647         * tree-pass.h: Ditto.
7648         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
7649         * rtl.h (make_jump_insn_raw): Add forward decl.
7650         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
7651
7652 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7653             Roger Sayle  <roger@eyesopen.com>
7654
7655         * fold-const.c (fold_minmax): New static function.
7656         (fold_binary) <MIN_EXPR>: Call it.
7657         <MAX_EXPR>: Likewise.
7658         * stor-layout.c (place_field): Use DECL_SIZE consistently
7659         in the computation of the new record size.
7660
7661 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
7662
7663         * cse.c (cse_condition_code_reg): Make it static.
7664         * rtl.h: Remove the prototype for cse_condition_code_reg.
7665
7666         * combine.c (combine_instructions): Make it static.
7667         * rtl.h: Remove the prototype for combine_instructions.
7668
7669 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7670
7671         PR target/25168
7672         * tree.c (get_file_function_name_long): Concatenate the first global
7673         object name with a string derived from the input filename of the object
7674         for type "F".
7675
7676 2006-01-16  Ben Elliston  <bje@au.ibm.com>
7677
7678         * config/i386/winnt-stubs.c: Update FSF address.
7679         * config/xtensa/ieee754-df.S: Ditto.
7680         * config/xtensa/ieee754-sf.S: Ditto.
7681
7682 2006-01-14  Ian Lance Taylor  <ian@airs.com>
7683
7684         * ifcvt.c (noce_init_if_info): New static function, broken out of
7685         noce_process_if_block.
7686         (noce_process_if_block): Call noce_init_if_info.
7687         (check_cond_move_block): New static function.
7688         (cond_move_process_if_block): New static function.
7689         (process_if_block): Call cond_move_process_if_block.
7690
7691 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
7692
7693         * cselib.c (hash_table): Rename to cselib_hash_table.
7694         (cselib_clear_table, discard_useless_values,
7695         remove_useless_values, cselib_lookup_mem, cselib_lookup,
7696         cselib_init, cselib_finish): Adjust uses of hash_table.
7697
7698 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
7699
7700         PR tree-optimization/25485
7701         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
7702         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
7703         is known to be false and true, respectively.
7704
7705 2006-01-14  Richard Guenther  <rguenther@suse.de>
7706
7707         PR tree-optimization/22548
7708         PR tree-optimization/22555
7709         PR tree-optimization/22501
7710         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
7711         * params.def (salias-max-array-elements): New parameter.
7712         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
7713         * doc/invoke.texi (salias-max-array-elements): Document.
7714         * tree-flow-inline.h (var_can_have_subvars): We also handle
7715         arrays now.
7716         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
7717         COMPONENT_REF.
7718         * tree-ssa-structalias.c (params.h): Include.
7719         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
7720         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
7721         (get_constraint_for): For ADDR_EXPR operating on something
7722         containing an ARRAY_REF, add all subvars to the solution.
7723         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
7724         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
7725         for creating MUST_DEFs.
7726         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
7727
7728 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
7729
7730         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
7731         functions.
7732         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
7733         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
7734         number_of_iterations_le): New functions.
7735         (number_of_iterations_special): Removed.
7736         (number_of_iterations_exit): Do not use number_of_iterations_special.
7737         * tree.c (unsigned_type_for): Always return integer type.
7738
7739 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
7740         Richard Guenther  <rguenther@suse.de>
7741
7742         PR rtl-optimization/24257
7743         * gcse.c (find_moveable_store): Only consider a store movable
7744         when the SET_SRC of the insn can be assigned to a register.
7745
7746 2006-01-14  Ian Lance Taylor  <ian@airs.com>
7747
7748         * tree.c (tree_not_class_check_failed): New function.
7749         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
7750         (tree_not_class_check_failed): Declare.
7751
7752 2006-01-13  Ian Lance Taylor  <ian@airs.com>
7753
7754         * reload1.c (do_output_reload): Add assertion rejecting a
7755         CALL_INSN.
7756
7757 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
7758
7759         * combine.c (struct reg_stat): Add new fields truncation_label and
7760         truncated_to_mode.
7761         (record_value_for_reg): Reset truncated_to_mode.
7762         (record_truncated_value): New function.
7763         (check_promoted_subreg): Call it.  Rename to check_conversions.
7764         (combine_instructions): Rename check_promoted_subreg to
7765         check_conversions.
7766         (reg_truncated_to_mode): New function.
7767         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
7768         (gen_lowpart_or_truncate): New function.
7769         (force_to_mode): Use it instead of gen_lowpart.
7770
7771 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
7772
7773         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
7774         VAR is a tag, not its type tag.
7775
7776 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
7777
7778         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
7779         alternatives to match style of other entries.
7780         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
7781
7782 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
7783
7784         PR tree-optimization/25771
7785         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
7786         SSA_NAMES.
7787
7788 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
7789
7790         PR tree-opt/24365
7791         * tree-inline.c (declare_return_variable): If the return variable
7792         was marked as a non gimple complex, set the return slot variable
7793         to be a non gimple comple variable.
7794
7795 2006-01-13  Richard Guenther  <rguenther@suse.de>
7796
7797         * builtins.c (expand_builtin_sincos): New function.
7798         (expand_builtin_mathfn_3): Remove dead code, sin and cos
7799         do not set errno.
7800         (expand_builtin): Expand sincos using expand_builtin_sincos.
7801
7802 2006-01-12  DJ Delorie  <dj@redhat.com>
7803
7804         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
7805         shift counts, separate SI shifts for m32c vs m16c, pass shift type
7806         so that constant shifts can be split.
7807         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
7808         (m32c_valid_pointer_mode): Make static.
7809         (shift_gen_func_for): New.
7810         (m32c_prepare_shift): Use it.  Split large const shifts into
7811         multiple shifts.
7812         * config/m32c/predicates.md (shiftcount_operand): Allow more
7813         general operands.
7814         (longshiftcount_operand): New.
7815         * doc/md.texi (Machine Constraints): Document In6.
7816
7817 2006-01-13  Ben Elliston  <bje@au.ibm.com>
7818
7819         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
7820         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
7821         documentation.
7822
7823 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
7824
7825         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
7826         to try to avoid clobbering pieces of structures when we know
7827         something about the whole structure.
7828         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
7829
7830 2006-01-13  Ben Elliston  <bje@au.ibm.com>
7831
7832         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
7833         return in memory, as this is no limitation is no longer present.
7834
7835 2006-01-12  DJ Delorie  <dj@redhat.com>
7836
7837         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
7838         mova with fb, and for fb+0 -> An.
7839
7840         * config/m32c/mov.md (peephole2): Fix enabling logic.
7841
7842         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
7843         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
7844         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
7845         FINI_ARRAY_SECTION_ASM_OP): Define.
7846
7847         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
7848         variable.
7849         (m32c_legitimize_reload_address): New logic to reload FB to An.
7850         (m32c_output_reg_push): Add newline.
7851         (m32c_output_reg_pop): Likewise.
7852
7853 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
7854
7855         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
7856
7857 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
7858
7859         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
7860
7861 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
7862
7863         * config/sh/predicates.md (sh_rep_vec): Add parallel to
7864         match_code.
7865
7866 2006-01-11  Ben Elliston  <bje@au.ibm.com>
7867
7868         * rtlanal.c (find_reg_note): Assert insn is not null.
7869
7870 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
7871
7872         * df-scan.c (df_hard_reg_init): Move declaration of i outside
7873         ifdef.
7874
7875 2006-01-11  Jeff Law  <law@redhat.com>
7876
7877         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
7878         hold edge pairs.
7879         (mark_threaded_blocks, register_jump_thread): New functions.
7880         (thread_through_all_blocks): Remove unwanted argument.  No
7881         longer rely on e->aux to communicate thread target info.
7882         Call mark_threaded_blocks.  Release the threaded_blocks
7883         bitmap and threaded_edges vector when complete.
7884         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
7885         (threaded_blocks): Remove.
7886         (tree_ssa_dominator_optimize): Remove initialization and
7887         finalization of threaded_blocks.  Simplify call to
7888         thread_through_all_blocks.
7889         (thread_across_edge): Call register_jump_thread rather than
7890         storing thread information into e->aux.
7891         (free_all_edge_infos): Simplify now that e->aux is no longer
7892         used to communicate with thread_through_all_blocks.
7893         * tree-flow.h (thread_through_all_blocks): Update prototype.
7894         (register_jump_thread): Prototype.
7895
7896 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
7897
7898         * df-core.c (df_compact_blocks, df_bb_replace): Use
7899         SET_BASIC_BLOCK instead of BASIC_BLOCK.
7900
7901 2006-01-11  Richard Guenther  <rguenther@suse.de>
7902
7903         PR tree-optimization/25734
7904         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
7905         stop propagation after successful propagation to the LHS.
7906
7907 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
7908
7909         * basic-block.h (control_flow_graph): Change the type of
7910         x_basic_block_info to VEC(basic_block,gc) *.
7911         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
7912         basic_block_info.
7913         (SET_BASIC_BLOCK): New.
7914         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
7915         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
7916         * cfgbuild.c (find_basic_blocks): Likewise.
7917         * cfglayout.c (fixup_reorder_chain): Likewise.
7918         * cfgrtl.c (create_basic_block_structure,
7919         rtl_create_basic_block): Likewise.
7920         * ifcvt.c (find_if_case_1): Likewise.
7921         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
7922         Likewise.
7923
7924 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
7925
7926         * Makefile.in: Removed rotted odf.c entry.
7927
7928 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
7929
7930         PR target/25706
7931         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
7932         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
7933         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
7934         output pattern modifier, not %e.
7935         * config/cris/cris.c (cris_op_str): Update comment about pattern
7936         modifier.
7937         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
7938         before falling through into...
7939         <case 'E'>: Redefined from old 'e' case.
7940
7941 2006-01-11  Jan Hubicka  <jh@suse.cz>
7942
7943         PR target/25042
7944         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
7945
7946 2006-01-11  Jan Hubicka  <jh@suse.cz>
7947
7948         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
7949         * i386.c (x86_decompose_lea): Kill.
7950         (ix86_rtx_costs): Kill.
7951
7952 2006-01-11  Jan Hubicka  <jh@suse.cz>
7953
7954         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
7955         * cgraph.h (cgraph_node): Add inline_decl.
7956         (cgraph_insert_node_to_hashtable): Declare.
7957         (save_inline_function_body): Declare.
7958         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
7959         clones.
7960         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
7961         (cgraph_function_versioning): Update call of tree_function_versioning.
7962         (save_inline_function_body): New function.
7963         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
7964         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
7965         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
7966         (cgraph_default_inline_p): Likewise.
7967         (cgraph_decide_inlining_incrementally): Likewise.
7968         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
7969         (copy_bb): Kill saving; do updating of clones.
7970         (copy_cfg_body): Kill saving.
7971         (initialize_inlined-parameters): Likewise.
7972         (expand_call_inline): Likewise.
7973         (save_body): Kill.
7974         (tree_function_versioning): New parameter "update_clones".
7975         (inlining_p): Kill saving.
7976         * tree-inline.h (tree_function_versioning): Update prototype.
7977         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
7978         saving.
7979
7980 2006-01-11  Ian Lance Taylor <ian@airs.com>
7981
7982         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
7983         Allow undoing set of machine mode.
7984         (do_SUBST): Use enums instead of is_int.
7985         (do_SUBST_MODE): New function.
7986         (SUBST_MODE): New macro.
7987         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
7988         reg and trying to replace reg_regno_rtx with a new register.
7989         (undo_all): Use new enums, handle undoing a PUT_MODE change.
7990         (simplify_set): Use SUBST_MODE.
7991         (distribute_notes): Remove code that tried to update reg notes
7992         for regno_reg_rtx changes.
7993
7994 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
7995
7996         PR tree-optimization/23109
7997         PR tree-optimization/23948
7998         PR tree-optimization/24123
7999
8000         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
8001         * tree-cfg.c (single_noncomplex_succ): New.
8002         * tree-flow.h (single_noncomplex_succ): Declare it.
8003         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
8004         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
8005         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
8006         insert_bb, register_division_in, insert_reciprocals,
8007         replace_reciprocal, free_bb): New.
8008         (execute_cse_reciprocals_1): Rewritten.
8009         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
8010         Do not commit any edge insertion.  Always compute dominators and
8011         create the allocation pool.
8012         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
8013         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
8014         * targhooks.c (default_min_divistions_for_recip_mul): New.
8015         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
8016         * passes.c (init_optimization_passes): Run recip after tree loop
8017         optimizations.
8018         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
8019
8020 2006-01-11  Danny Berlin <dberlin@dberlin.org>
8021             Kenneth Zadeck <zadeck@naturalbridge.com>
8022
8023         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
8024         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
8025         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
8026         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
8027         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
8028         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
8029         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
8030         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
8031         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
8032         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
8033         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
8034         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
8035         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
8036         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
8037         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
8038         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
8039         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
8040         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
8041         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
8042         DF_SCAN_POST_ALLOC): New macros.
8043         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
8044         df_free_bb_function, df_local_compute_function, df_init_function,
8045         df_dataflow_function, df_confluence_function_0,
8046         df_confluence_function_n, df_transfer_function,
8047         df_finalizer_function, df_free_function, df_dump_problem_function,
8048         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
8049         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
8050         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
8051         df_urec_bb_info, ) New types.
8052         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
8053         variables.
8054         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
8055         df_analyze_simple_change_some_blocks,
8056         df_analyze_simple_change_one_block, df_compact_blocks,
8057         df_bb_replace, df_bb_regno_last_use_find,
8058         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
8059         df_insn_regno_def_p, df_find_def, df_find_use,
8060         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
8061         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
8062         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
8063         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
8064         debug_df_chain, df_get_dependent_problem, df_chain_create,
8065         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
8066         df_grow_bb_info, df_chain_dump, df_print_bb_index,
8067         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
8068         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
8069         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
8070         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
8071         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
8072         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
8073         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
8074         df_ref_remove, df_insn_refs_delete, df_refs_delete,
8075         df_reorganize_refs, df_set_state, df_hard_reg_init,
8076         df_read_modify_subreg_p) New public functions.
8077         * df-core.c: The core dataflow solver and glue routines for rtl
8078         dataflow.
8079         (df_init, df_add_problem, df_set_blocks, df_finish,
8080         df_hybrid_search_forward, df_hybrid_search_backward,
8081         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
8082         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
8083         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
8084         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
8085         df_reg_defined, df_find_use, df_reg_used, df_dump,
8086         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
8087         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
8088         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
8089         debug_df_useno, reset_df_after_reload): New functions.
8090         * df-scan.c: The scanning fuctions, once in df.c, completely
8091         rewritten so that they now fully model the functionality of
8092         register usage at the backend.
8093         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
8094         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
8095         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
8096         df_grow_insn_info, df_rescan_blocks, df_ref_create,
8097         df_get_artificial_defs, df_get_artificial_uses,
8098         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
8099         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
8100         df_refs_delete, df_reorganize_refs, df_set_state,
8101         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
8102         df_def_record_1, df_defs_record, df_uses_record,
8103         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
8104         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
8105         df_record_exit_block_uses, df_hard_reg_init): New functions.
8106
8107         * df-problems.c: Seven concrete dataflow problems that use the
8108         scanning in df-scan.c and are solved by the engine in df-core.c.
8109         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
8110         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
8111         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
8112         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
8113         df_ru_free_bb_info, df_ru_alloc,
8114         df_ru_bb_local_compute_process_def,
8115         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
8116         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
8117         df_ru_transfer_function, df_ru_free, df_ru_dump,
8118         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
8119         df_rd_free_bb_info, df_rd_alloc,
8120         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
8121         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
8122         df_rd_transfer_function, df_rd_free, df_rd_dump,
8123         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
8124         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
8125         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
8126         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
8127         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
8128         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
8129         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
8130         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
8131         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
8132         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
8133         df_urec_mark_reg_change, df_urec_check_earlyclobber,
8134         df_urec_mark_reg_use_for_earlyclobber,
8135         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
8136         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
8137         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
8138         df_urec_dump, df_urec_add_problem, df_chain_alloc,
8139         df_chain_create_bb_process_use, df_chain_create_bb,
8140         df_chain_finalize, df_chain_free, df_chains_dump,
8141         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
8142         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
8143         df_reg_lifetime): New functions.
8144         * df.c: Deleted file.
8145         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
8146         consistent with new df api.
8147         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
8148         rest_of_handle_sms): Ditto.
8149         * web.c (unionfind_union, union_defs, entry_register, web_main):
8150         Ditto.
8151         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
8152         invariant_expr_equal_p, find_defs, check_dependencies,
8153         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
8154         free_inv_motion_data, move_loop_invariants): Ditto.
8155         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
8156         Update dependencies.
8157         (odf.c): Added defective entry that was deleted later in day.
8158         * sched-deps.c (sched_analyze_1): Ditto.
8159
8160 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
8161
8162         * tree-ssa-operands.c (get_expr_operands): Record addressable
8163         variables directly.  Do not call add_stmt_operands for CONST_DECLs
8164         and ARRAY_DECLs.
8165         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
8166         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
8167
8168 2006-01-11  Ben Elliston  <bje@au.ibm.com>
8169
8170         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
8171         function returns true in the positive case.
8172
8173 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
8174
8175         PR target/20754
8176         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
8177         for SI, DI, SF and DF modes.  Add alternatives to copy between
8178         general and floating point registers to the 32-bit patterns.
8179         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
8180         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
8181         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
8182         generating 64-bit code.
8183         * config/pa/pa.c (output_move_double): Handle copies between general
8184         and floating registers.
8185
8186 2006-01-10  Stuart Hastings  <stuart@apple.com>
8187
8188         * config/i386/i386.md (set_got): Update.
8189         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
8190         (builtin_setjmp_receiver): Mach-O support.
8191         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
8192         (GOT_SYMBOL_NAME): Define.
8193         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
8194         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
8195         * config/i386/i386.c (override_options): Revise for Darwin.
8196         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
8197         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
8198         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
8199         * config/i386/i386-protos.h (output_set_got): Likewise.
8200         * config/darwin.c (machopic_legitimize_pic_address): Update
8201         regs_ever_live[].
8202
8203 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
8204
8205         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
8206         when MODE isn't BLKmode.
8207
8208 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
8209
8210         PR rtl-optimization/25367
8211         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
8212
8213 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
8214
8215         PR target/25718
8216         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
8217         for a negative bound.
8218
8219 2006-01-10  Richard Guenther  <rguenther@suse.de>
8220
8221         * tree-ssa-structalias.c (get_constraint_for_component_ref):
8222         Never override with anything constraint.
8223
8224 2006-01-10  Jan Beulich  <jbeulich@novell.com>
8225
8226         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
8227         256 bits when optimize_size.
8228
8229 2006-01-10  Jan Beulich  <jbeulich@novell.com>
8230
8231         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
8232         MASK_ALIGN_DOUBLE.
8233         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
8234         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
8235         arguments.
8236
8237 2006-01-10  Ben Elliston  <bje@au.ibm.com>
8238
8239         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
8240         float modes.
8241         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
8242         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
8243         (USE_FP_FOR_ARG): Reject decimal float modes.
8244         (function_arg_advance): Likewise.
8245         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
8246         (rs6000_handle_altivec_attribute): Do not permit decimal floating
8247         point types in AltiVec vectors.
8248         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
8249         (rs6000_libcall_value): Likewise.
8250
8251 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
8252
8253         * config/xtensa/ieee754-df.S: New file.
8254         * config/xtensa/ieee754-sf.S: New file.
8255         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
8256         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
8257         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
8258
8259 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
8260
8261         * config/sh/predicates.md (binary_float_operator,
8262         binary_logical_operator, commutative_float_operator,
8263         equality_comparison_operator, greater_comparison_operator,
8264         less_comparison_operator, logical_operator,
8265         noncommutative_float_operator, shift_operator,
8266         symbol_ref_operand, unary_float_operator): Remove redundant
8267         conditionals.
8268
8269 2006-01-09  Jeff Law  <law@redhat.com>
8270
8271         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
8272         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
8273         now unused arguments.  Callers updated.
8274         (eliminate_redundant_computations): Remove now unused arguments,
8275         callers updated.
8276         (local_fold): Remove, no longer used.
8277         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
8278         and moved to...
8279         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
8280         (simplify_cond): New function.
8281         (forward_propagate_into_cond): Call simplify_cond.
8282
8283 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
8284
8285         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
8286         (*vec_extractv2di_1_sse): New.
8287
8288 2006-01-09  Ben Elliston  <bje@au.ibm.com>
8289
8290         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
8291
8292 2006-01-08  Richard Guenther  <rguenther@suse.de>
8293
8294         * tree-ssa-structalias.c (get_constraint_for): Remove
8295         anyoffset argument.
8296         (get_constraint_for_component_ref): Likewise.
8297         (do_deref): Likewise.
8298         (get_constraint_for): Likewise.
8299         (do_structure_copy): Likewise.
8300         (handle_ptr_arith): Likewise.
8301         (find_func_aliases): Likewise.  Remove unused need_anyoffset
8302         variable.
8303
8304 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
8305             Kaz Kojima  <kkojima@gcc.gnu.org>
8306
8307         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
8308         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
8309         (EXTRA_CONSTRAINT_C16): Remove.
8310         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
8311         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
8312         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
8313         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
8314         constants of SHmedia.  Handle nested constant expressions of
8315         SHmedia correctly.
8316         (andcosts): Fix the costs for SHmedia constants.
8317         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
8318         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
8319         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
8320         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
8321         (movv4hi_i, movv2si_i): Likewise.
8322         (movsi_const): Adjust the second operand of ior so to match with
8323         the Csu constraint.
8324         (movdi_const, movdi_const_32bit): Likewise.
8325         (movdi_const_16bit+1): Don't sign-extend LOW.
8326         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
8327         step.
8328         (*double_shori): Fix the split condition.  Use GEN_INT instead
8329         of get_int_mode calls.  Mask lower 16-bit of the argument of
8330         the last GEN_INT.
8331         (sym2GOTPLT): Remove.
8332         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
8333         gen_rtx_UNSPEC.
8334         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
8335         instead of EXTRA_CONSTRAINT_C16.
8336
8337 2006-01-07  Ian Lance Taylor  <ian@airs.com>
8338             David Edelsohn  <edelsohn@gnu.org>
8339
8340         PR rtl-optimization/25662
8341         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
8342         for constant operands instead of simplify_gen_binary.
8343         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
8344         after trying simplify_binary_operation
8345
8346 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
8347
8348         * tree.c (iterative_hash_expr): Hash decls based on UID.
8349
8350 2006-01-06  Eric Christopher  <echristo@apple.com>
8351
8352         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
8353         (TARGET_UNWIND_EMIT): Fix spelling.
8354         * target.h (gcc_target): Add except_table_label.
8355         * except.c (output_function_exception_table): Use.
8356         * varasm.c (default_emit_except_table_label): New.
8357         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
8358         define.
8359         (asm_out): Add here.
8360         * output.h (default_emit_except_table_label): Prototype.
8361         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
8362         * config/darwin.c (darwin_emit_except_table_label): Define.
8363         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
8364
8365 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
8366
8367         PR tree-optimization/18527
8368         * tree-ssa-loop-niter.c (number_of_iterations_cond,
8369         number_of_iterations_special, number_of_iterations_exit):
8370         Move base and step of an iv to a single structure.  Add
8371         no_overflow flag, and use it in # of iterations analysis.
8372         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
8373         folded_casts argument.
8374         (simple_iv): Pass base and step in a structure.  Set no_overflow
8375         flag.
8376         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
8377         Evaluate expensiveness of computing # of iterations instead of
8378         the final expression.
8379         * tree-scalar-evolution.h (affine_iv): New structure.
8380         (simple_iv): Declaration changed.
8381         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
8382         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
8383         find_givs_in_stmt): Changed due to simple_iv change.
8384
8385 2006-01-06  Jeff Law  <law@redhat.com>
8386
8387         PR ada/24994
8388         * tree-cfg.c (bsi_replace): Rename final argument from
8389         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
8390         change (stmt -> orig_stmt).
8391         * tree-eh.c (verify_eh_throw_stmt_node): New function.
8392         (bsi_remove): Add new argument.  Remove EH information
8393         if requested.
8394         (verify_eh_throw_table_statements): New function.
8395         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
8396         updated.
8397         * tree-optimize.c (execute_free_cfg_annotations): Verify
8398         the EH throw statement table after removing annotations.
8399         * except.h (verify_eh_throw_table_statements): Prototype.
8400         * tree-flow.h (bsi_remove): Update prototype.
8401         * tree-vrp.c (remove_range_assertions): Add new argument to
8402         bsi_remove call.
8403         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
8404         * tree-complex.c (expand_complex_div_wide): Likewise.
8405         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
8406         * tree-tailcall.c (eliminate_tailcall): Likewise.
8407         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
8408         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
8409         * tree-nrv.c (tree_nrv): Likewise.
8410         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
8411         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
8412         (combine_blocks): Likewise.
8413         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
8414         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
8415         (cleanup_control_flow): Likewise.
8416         (remove_forwarder_block): Likewise.
8417         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
8418         * tree-sra.c (sra_replace): Likewise.
8419         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
8420         (forward_propagate_single_use_vars): Likewise.
8421         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
8422         * tree-inline.c (expand_call_inline): Likewise.
8423         * tree-vect-transform.c (vect_transform_loop): Likewise.
8424         * tree-outof-ssa.c (rewrite_trees): Likewise.
8425         * tree-cfg.c (make_goto_expr_edges): Likewise.
8426         (cleanup_dead_labels): Likewise.
8427         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
8428         (bsi_move_before, bsi_move_after): Likewise.
8429         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
8430         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
8431
8432 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
8433
8434         PR tree-opt/25528
8435         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
8436         and IMAGPART_EXPR.
8437         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
8438         on non gimple variables.  Also add checks at the top for decls and
8439         mtags.
8440         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
8441         complex types.
8442         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
8443         and IMAGPART_EXPR for creating MUST_DEFs.
8444         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
8445         and NAME_MEMORY_TAG separately from the DECLs.
8446
8447 2006-01-06  Richard Guenther  <rguenther@suse.de>
8448
8449         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
8450         annotation, if necessary.
8451         * tree-ssa-pre.c (create_expression_by_pieces): Remove
8452         redundant calls to update_stmt.
8453         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
8454         Likewise.
8455
8456 2006-01-05  Richard Henderson  <rth@redhat.com>
8457
8458         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
8459
8460 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
8461
8462         * c-typeck.c: Update copyright date.
8463
8464 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
8465
8466         * c-typeck.c (build_c_cast): Always warn when casting
8467         from a pointer to an integer of different size, even if
8468         the node was constant.
8469
8470 2006-01-05  Richard Guenther  <rguenther@suse.de>
8471
8472         PR tree-optimization/22555
8473         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
8474         if one structure field is an array.
8475         * tree-ssa-operands.c (get_expr_operands): Continue scanning
8476         operands even if we found a subvar, but ignore VOPs in this
8477         case.
8478         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
8479         for renaming.
8480         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
8481
8482 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
8483
8484         PR middle-end/24998
8485         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
8486
8487 2006-01-05  Richard Guenther  <rguenther@suse.de>
8488             Diego Novillo  <dnovillo@redhat.com>
8489
8490         * tree-pass.h (TODO_remove_unused_locals): Define.
8491         * gimple-low.c (expand_var_p, remove_useless_vars,
8492         pass_remove_useless_vars): Remove.  Update all users.
8493         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
8494         (remove_unused_locals): New function.
8495         * tree-flow.h (remove_unused_locals): Declare.
8496         * passes.c (execute_todo): Call remove_unused_locals if
8497         TODO_remove_unused_locals is set.
8498         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
8499         * tree-ssa-dce.c (pass_dce): Likewise.
8500         * tree-outof-ssa.c (pass_del_ssa): Likewise.
8501
8502 2006-01-05  Richard Guenther  <rguenther@suse.de>
8503
8504         * tree-flow.h (struct fieldoff): Decompose field to
8505         type, size and decl.
8506         * tree-ssa-alias.c (create_sft): Take type as parameter.
8507         (create_overlap_variables_for): Store type, size and decl
8508         in the fieldoff structure.
8509         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
8510         of struct fieldoff.
8511         (push_fields_onto_fieldstack): Likewise.
8512         (create_variable_info_for): Likewise.  Use offset for the
8513         SFT name if the decl is not available.
8514
8515 2006-01-04  Paul Brook  <paul@codesourcery.com>
8516
8517         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
8518
8519 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
8520
8521         * lambda-code.c (can_put_in_inner_loop): Relax
8522         restrictions.
8523         (can_put_after_inner_loop): New function.
8524         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
8525         (perfect_nestify): Change to make copies and modify uses.
8526
8527 2006-01-04  Richard Henderson  <rth@redhat.com>
8528
8529         Merge from gomp branch:
8530         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
8531         via integer constant.
8532         (pragma_lex): Remove.
8533         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
8534         rather than parsing it.
8535         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
8536         handle_pragma_extern_prefix): Add %< %> quotes.
8537         (registered_pragmas): New.
8538         (c_register_pragma_1): New.
8539         (c_register_pragma): Use it.
8540         (c_register_pragma_with_expansion): Likewise.
8541         (c_invoke_pragma_handler): New.
8542         (init_pragma): Use cpp_register_deferred_pragma directly for
8543         pch_preprocess.
8544         * c-pragma.h (enum pragma_kind): New.
8545         (pragma_handler): New.
8546         (c_invoke_pragma_handler): Declare.
8547         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
8548         CPP_PRAGMA_EOL.
8549         * c-common.h (c_common_pch_pragma): Update decl.
8550         * Makefile.in (c-parser.o): Update dependencies.
8551         (GTFILES): Add c-pragma.h.
8552         * c-parser.c (struct c_token): Add pragma_kind.
8553         (struct c_parser): Add in_pragma.
8554         (c_lex_one_token): Always initialize keyword and pragma_kind.
8555         Extract data for CPP_PRAGMA.
8556         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
8557         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
8558         Don't allow CPP_PRAGMA_EOL if in_pragma.
8559         (c_parser_consume_pragma): New.
8560         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
8561         (c_parser_skip_to_end_of_parameter): Likewise.
8562         (c_parser_skip_to_end_of_block_or_statement): Likewise.
8563         (c_parser_skip_to_pragma_eol): New.
8564         (c_parser_external_declaration): Handle CPP_PRAGMA.
8565         (c_parser_compound_statement_nostart): Likewise.
8566         (c_parser_statement_after_labels): Likewise.
8567         (c_parser_pragma): New.
8568         (pragma_lex): Likewise.
8569         (c_parser_pragma_pch_preprocess): New.
8570         (c_parser_new): Merge into ...
8571         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
8572
8573 2006-01-04  Jeff Law  <law@redhat.com>
8574
8575         PR ada/24994
8576         * tree-cfg.c (bsi_replace): Remove the original statement
8577         from the EH throw statement table.
8578
8579 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
8580
8581         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
8582         make the prototype extern "C" and add throw ().
8583
8584         PR target/25554
8585         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
8586         and pos non-negative and pos + len <= 32.
8587         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
8588         drop pos + len < HOST_BITS_PER_WIDE_INT test.
8589         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
8590
8591         PR c/25559
8592         * c-common.c (handle_vector_size_attribute): Reject zero vector size
8593         as well as sizes not multiple of component size.
8594
8595         PR debug/25562
8596         * function.c (instantiate_expr): New function.
8597         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
8598         walk its DECL_VALUE_EXPR with instantiate_expr.
8599
8600         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
8601         DW_OP_deref{,_size} if address isn't going to be added.
8602
8603 2006-01-04  Ben Elliston  <bje@au.ibm.com>
8604
8605         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
8606         * config/fp-bit.c: Likewise.
8607
8608 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
8609
8610         * dominance.c: Add comment about why we use DFS numbering
8611         of dominance tree.
8612
8613 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
8614             Richard Henderson  <rth@redhat.com>
8615
8616         Merge from gomp-branch:
8617         * varasm.c (assemble_variable): Handle thread-local COMMON data.
8618         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
8619
8620 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
8621
8622         PR rtl-optimization/25578
8623         * combine.c (combine_simplify_rtx, force_to_mode): Don't
8624         pass a parameter to simplify_shift_const if changing ASHIFTRT
8625         to LSHIFTRT.
8626
8627 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
8628
8629         * builtins.c (get_builtin_sync_mem): New function.
8630         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
8631         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
8632         Call get_builtin_sync_mem to generate mem rtx.
8633
8634 2006-01-03  Richard Guenther  <rguenther@suse.de>
8635
8636         PR c/25183
8637         * stmt.c (add_case_node): Make sure to clear overflow flags
8638         from ranges.
8639
8640 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
8641
8642         Merge from gomp-branch.
8643         * config/sparc/sync.md: New file.
8644         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
8645         UNSPECV_LDSTUB): New constants.
8646         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
8647         * config/sparc/predicates.md (memory_reg_operand): New predicate.
8648         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
8649         prototype.
8650
8651 2006-01-03  Roger Sayle  <roger@eyesopen.com>
8652
8653         * combine.c (reg_subword_p): New predicate to test whether the
8654         destination of a set refers to a subword/piece of a register.
8655         (try_combine): Generalize the code to merge the setting of a
8656         pseudo to a constant followed by a set of a subword of that
8657         register to a constant.
8658
8659 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
8660
8661         * basic-block.h (control_flow_graph): Change the type of
8662         x_label_to_block_map to VEC(basic_block,gc) *.
8663         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
8664         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
8665
8666         * tree-ssa-propagate.c (cfg_blocks): Change the type to
8667         VEC(basic_block,heap) *.
8668         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
8669         ssa_prop_fini): Adjust the uses of cfg_blocks.
8670
8671 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
8672
8673         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
8674         COMPONENT_REFs.
8675         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
8676         hashing trees instead of a pointer hash.
8677         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
8678         compare for MEM_EXPR.
8679
8680         PR rtl-optimization/25130
8681         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
8682         when comparing MEMs for GCSE
8683
8684 2006-01-03  Ben Elliston  <bje@au.ibm.com>
8685
8686         * targhooks.h (default_decimal_float_supported_p): Declare.
8687         * targhooks.c (default_decimal_float_supported_p): Define.
8688         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
8689         `default_decimal_float_supported_p'.
8690         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
8691
8692 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
8693
8694         * combine.c (apply_distributive_law <SUBREG>): Check
8695         TRULY_NOOP_TRUNCATION.
8696
8697 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
8698
8699         * dwarf2out.c (have_switched_text_section): Delete.
8700         (have_multiple_function_sections): New.
8701         (have_location_lists): Make 'bool'.
8702         (add_AT_loc_list): Use 'true' not '1'.
8703         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
8704         (output_loc_list): Use have_multiple_function_sections.
8705         (output_ranges): Likewise.
8706         (dwarf2out_begin_function): Set have_multiple_function_sections if
8707         necessary.
8708         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
8709         Check function_section rather than DECL_SECTION_NAME.
8710         (dwarf2out_finish): Use have_multiple_function_sections.
8711         Don't clear have_location_lists.
8712
8713 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
8714             Jan Hubicka  <jh@suse.cz>
8715
8716         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
8717         case of conditional jump jumping to the next instruction.
8718         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
8719         cases of conditional jump jumping to the next instruction.
8720
8721 2006-01-02  Jan Hubicka  <jh@suse.cz>
8722
8723         * i386.c (*_cost): Add COSTS_N_INSNS.
8724         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
8725
8726 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
8727
8728         PR target/25259
8729         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
8730
8731 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
8732
8733         * config/arm/arm.c (all_fpus): Fix comment typo.
8734         * config/darwin.c: Likewise.
8735         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
8736         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
8737         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
8738
8739 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
8740
8741         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
8742         (rs6000_split_compare_and_swapqhi): New.
8743         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
8744         (sync_compare_and_swapqhi_internal): New.
8745         * config/rs6000/rs6000-protos.h: Declare.