gcc/ChangeLog

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