gcc/ChangeLog

   1 2007-01-10  Robert Kennedy <jimbob@google.com>
   2
   3         * fold-const.c (fold_comparison): Fold comparisons like (x *
   4         1000 < 0) to (x < 0).
   5
   6 2007-01-10  Ian Lance Taylor  <iant@google.com>
   7
   8         * tree-pretty-print.c (dump_generic_node): Print parentheses when
   9         operands have the same priority.
  10
  11 2007-01-10  Tom Tromey  <tromey@redhat.com>
  12
  13         * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
  14         (fold_binary): Likewise.
  15         * langhooks.c (lhd_can_use_bit_fields_p): Removed.
  16         * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
  17         (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
  18         (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
  19         * langhooks.h (struct lang_hooks): Removed field
  20         'can_use_bit_fields_p'.
  21
  22 2007-01-10  Ralf Corsépius <ralf.corsepius@rtems.org>
  23
  24         * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.
  25
  26 2007-01-10  Razya Ladelsky  <razya@il.ibm.com>
  27
  28         * function.c (get_last_funcdef_no): New function.
  29         * function.h (get_last_funcdef_no): Declare.
  30         * tree-inline.c (initialize_cfun): Add initialization.
  31         (tree_function_versioning): Cleanup.
  32
  33 2007-01-10  Jan Hubicka  <jh@suse.cz>
  34
  35         * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
  36         PHIs.
  37
  38 2007-01-10  Sa Liu  <saliu@de.ibm.com>
  39             Ben Elliston  <bje@au.ibm.com>
  40
  41         * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
  42         for SAVE_NONLOCAL and Pmode for any other save level.
  43         * spu-protos.h (spu_restore_stack_block): Declare.
  44         * spu.md (save_stack_block): Remove.
  45         (restore_stack_block): Call spu_restore_stack_block.
  46         * spu.c (spu_restore_stack_block): New function.
  47         (spu_expand_epilogue): Remove old comment.
  48
  49 2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>
  50
  51         PR tree-optimization/30322
  52         * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
  53         (cand_value_at): Return the value as aff_tree.
  54         (may_eliminate_iv): Convert the bound from aff_tree to tree.
  55         * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
  56         aff_combination_mult): New functions.
  57         (aff_combination_add): Use aff_combination_add_cst.
  58         (aff_combination_convert): Allow conversions to a wider type.
  59         (tree_to_aff_combination): Handle BIT_NOT_EXPR.
  60         * tree-affine.h (aff_combination_mult): Declare.
  61
  62 2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>
  63
  64         * doc/tm.texi: Update documentation to reflect reality of exec
  65         and start file search behaviours. Update copyright year.
  66         * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
  67         header file directories.
  68
  69 2007-01-09  Uros Bizjak  <ubizjak@gmail.com>
  70
  71         * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
  72         (*cosxf2): Rename to cosxf2_i387.
  73
  74         (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
  75         using X87MODEF12 mode macro. Rename patterns to
  76         *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
  77         for SSE math.
  78         (*cosdf2, *cossf2): Ditto.
  79         (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
  80         to match extended input operands.
  81
  82         (sincos<mode>3): New expander.
  83
  84         (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
  85         insn patterns and corresponding splitters.
  86
  87 2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>
  88
  89         * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
  90         (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.
  91
  92 2007-01-09  Nicolas Pitre  <nico@cam.org>
  93
  94         PR target/30173
  95         * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.
  96
  97 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
  98
  99         * target.h (struct gcc_target): New field library_rtti_comdat.
 100         * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
 101         (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
 102         * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
 103         * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.
 104
 105 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
 106
 107         * doc/invoke.texi (Optimize Options): Correct description of -O0.
 108
 109 2007-01-08  Richard Guenther  <rguenther@suse.de>
 110
 111         * tree.h (force_fit_type_double): Export.
 112         (force_fit_type): Remove.
 113         * fold-const.c (force_fit_type_double): New function.
 114         (force_fit_type): Remove.
 115         (int_const_binop): Use it.
 116         (fold_convert_const_int_from_int): Likewise.
 117         (fold_convert_const_int_from_real): Likewise.
 118         (fold_div_compare): Likewise.
 119         (fold_sign_changed_comparison): Likewise.
 120         (fold_unary): Likewise.
 121         (fold_negate_const): Likewise.
 122         (fold_abs_const): Likewise.
 123         (fold_not_const): Likewise.
 124         * c-common.c (shorten_compare): Use force_fit_type_double.
 125         * convert.c (convert_to_pointer): Likewise.
 126
 127 2007-01-08  Richard Guenther  <rguenther@suse.de>
 128
 129         * tree.h (build_int_cst_wide_type): Export.
 130         * tree.c (build_int_cst_wide_type): New function.
 131         (build_int_cst_wide): Fix comment.
 132         * builtins.c (fold_builtin_object_size): Use build_int_cst
 133         to build -1 or 0 of the correct type.  Use fit_double_type
 134         to check for overflow.
 135         * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
 136         to build the mask.
 137         (decode_field_reference): Likewise.
 138         (all_ones_mask_p): Likewise.
 139         (native_interpret_int): Use build_int_cst_wide_type.
 140         (fold_binary): Use build_int_cst_type to build an all-ones
 141         value.
 142         * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.
 143
 144 2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>
 145
 146         * config/pa/t-pa64 (libgcc_stub.a): Use $(T).
 147
 148 2007-01-09  Ben Elliston  <bje@au.ibm.com>
 149
 150         * genautomata.c (STATS_OPTION): New option.
 151         (stats_flag): New flag.
 152         (gen_automata_option): Handle it.
 153         (initiate_automaton_gen): Ditto.
 154         (write_automata): Output statistics only if stats_flag is
 155         set. Likewise, output time statistics only if time_flag is set.
 156         * doc/md.texi (Processor pipeline description): Document new flag.
 157
 158 2007-01-08  Richard Guenther  <rguenther@suse.de>
 159
 160         * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
 161         * tree.c (build_int_cst_type): Likewise.
 162         (size_in_bytes): Don't call force_fit_type on the result.
 163         (int_fits_type_p): Use fit_double_type.
 164         * fold-const.c (fit_double_type): New function.
 165         (force_fit_type): Use it.
 166         * tree.h (fit_double_type): Export.
 167
 168 2007-01-08  Jan Hubicka  <jh@suse.cz>
 169
 170         * tree-vectorizer.c (gate_increase_alignment): Fix return type.
 171         * ipa.c (function_and_variable_visibility): Fix return type.
 172
 173 2007-01-08  Richard Guenther  <rguenther@suse.de>
 174
 175         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
 176         of offset to build the index.
 177         * tree-pretty-print.c (dump_generic_node): Don't build negated
 178         const just for printing.
 179         * c-pretty-print.c (pp_c_integer_constant): Likewise.
 180         * builtins.c (fold_builtin_int_roundingfn): Check if result
 181         fits the type by using force_fit_type and comparing the result.
 182         * predict.c (predict_loops): Use compare_tree_int for comparison.
 183         * tree.c (build_int_cst): Fall back to integer_type_node for
 184         NULL_TREE type.
 185         (build_int_cst_wide): Assert type is non-null.
 186
 187 2007-01-08  Roberto Costa  <roberto.costa@st.com>
 188
 189         * tree-vrp.c (extract_range_from_cond_expr): New.
 190         (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
 191         * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
 192         as expressions.
 193         (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
 194         * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
 195         tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
 196         used as expressions.
 197         * tree-object-size.c (cond_expr_object_size): New.
 198         (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.
 199
 200 2007-01-08  Jan Hubicka  <jh@suse.cz>
 201
 202         * tree-ssa-forwprop.c (forward_propagate_into_cond,
 203         tree_ssa_forward_propagate_single_use_va): Release defs of propagated
 204         statement.
 205
 206 2007-01-08  Richard Guenther  <rguenther@suse.de>
 207
 208         PR tree-optimization/23603
 209         * tree-vrp.c (set_value_range_to_truthvalue): New function.
 210         (extract_range_from_binary): Fall back to truthvalue instead of
 211         varying for TRUTH_*_EXPR.
 212         (extract_range_from_comparison): Fall back to truthvalue instead of
 213         varying.
 214         (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
 215         if all visited PHI values were constant.
 216
 217 2007-01-08  Jan Hubicka  <jh@suse.cz>
 218
 219         * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
 220         (cgraph_analyze_function): break out from ...
 221         (cgraph_finalize_compilation_unit): ... here.
 222         (cgraph_expand_function): Remove forgoten commented out line.
 223         (cgraph_optimize): Analyze functions.
 224
 225 2007-01-08  Jan Hubicka  <jh@suse.cz>
 226
 227         * tree-pas.h (TODO_remove_function): New flag.
 228         (TODO_update*): Renumber.
 229         (pass_ipa_increase_alignment,
 230         pass_ipa_function_and_variable_visibility): New passes.
 231         * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
 232         (cgraph_function_and_variable_visibility): Move to ipa.c
 233         (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
 234         cgraph_increase_alignment.
 235         * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
 236         (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
 237         calling tree-inline.
 238         (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
 239         (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
 240         * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
 241         (gate_increase_alignment): New function.
 242         (pass_ipa_increase_alignment): New pass.
 243         * ipa.c: Inline tree-pass.h and timevar.h
 244         (function_and_variable_visibility): Move here from cgraphunit.c
 245         * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
 246         * passes.c (init_optimization_passes): Add the two new passes.
 247         (execute_todo): Handle cgraph_remove_functions.
 248
 249 2007-01-08  Nick Clifton  <nickc@redhat.com>
 250
 251         * config/frv/predicates.md (reg_or_0_operand): Accept
 252         CONST_DOUBLEs.
 253
 254 2007-01-08  Ralf Corsépius <ralf.corsepius@rtems.org>
 255
 256         * config/bfin/rtems.h, config/bfin/t-rtems: New.
 257         * config.gcc: Add bfin*-rtems*.
 258
 259 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
 260
 261         * c.opt: Add -flax-vector-conversions.
 262         * c-typeck.c (convert_for_assignment): Pass flag to
 263         vector_types_convertible_p to allow emission of note.
 264         (digest_init): Likewise.
 265         * c-opts.c: Handle -flax-vector-conversions.
 266         * c-common.c (flag_lax_vector_conversions): New.
 267         (vector_types_convertible_p): Unless -flax-vector conversions
 268         has been passed, disallow conversions between vectors with
 269         differing numbers of subparts and/or element types.  If such
 270         a conversion is disallowed, possibly emit a note on the first
 271         occasion only to inform the user of -flax-vector-conversions.
 272         The new last argument specifies this.
 273         * c-common.h (flag_lax_vector_conversions): New.
 274         (vector_types_convertible_p): Add extra argument.
 275         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
 276         char_type_node for V*QI type vectors.
 277         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
 278         Update to satisfy new typechecking rules.
 279         * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
 280         C and C++ variants.
 281         * doc/invoke.texi (C Dialect Options): Document
 282         -flax-vector-conversions.
 283
 284 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
 285
 286         PR tree-optimization/29877
 287         * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
 288         a register variable on the RHS to not be replaceable.
 289
 290 2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
 291         * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
 292         * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
 293         const_simm15, const_pow2, const_npow2): Added.
 294         * config/score/misc.md (insv, extv, extzv, movmemsi,
 295         move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
 296         * config/score/score.c (score_address_cost, score_select_cc_mode):
 297         Added.
 298         Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
 299         Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
 300         Update score_print_operand.
 301         * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
 302         Adjust register allocate order and update some macro define.
 303         * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
 304         mdx_block_move_straight, mdx_block_move_loop_head,
 305         mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
 306         mdx_block_move): Added.
 307         (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
 308         mdp_limm): Updated and fix some bug and typo.
 309         * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
 310         (movsf, movdf, doloop_end): Added.
 311
 312 2007-01-08  Kazu Hirata  <kazu@codesourcery.com>
 313
 314         * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
 315         config/arm/thumb2.md: Fix comment typos.
 316         * doc/extend.texi: Fix a typo.
 317
 318 2007-01-07  Eric Christopher  <echristo@apple.com>
 319
 320         * configure.ac: Check for __stack_chk_fail for darwin.
 321         * configure: Regenerate.
 322
 323 2007-01-07  Richard Guenther  <rguenther@suse.de>
 324
 325         * tree-vrp.c (extract_range_from_assert): CSE calls to
 326         compare_values where possible.
 327         (extract_range_from_unary_expr): Likewise.
 328
 329 2007-01-07  Anatoly Sokolov <aesok@post.ru>
 330
 331         * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
 332         * config/avr/avr.c (call_insn_operand): Delete function.
 333         * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
 334         instead of register number. Use predicates.
 335         * config/avr/predicates.md (const0_operand, reg_or_0_operand,
 336         call_insn_operand): Add.
 337
 338 2007-01-06  Jan Hubicka  <jh@suse.cz>
 339
 340         * tree-pass.h (pass_build_cgraph_edges): Declare.
 341         * cgraphunit.c (record_refernece): Move to cgraphbuild.c
 342         (visited_nodes): Remove.
 343         (cgraph_create_edges): Move to cgraphbuild.c; rename to
 344         build_cgrpah_edges; make visited_nodes local.
 345         (cgraph_process_new_functions): DO not call initialize_inline_failed.
 346         (record_references_in_initializer): Move to cgraphbuild.c
 347         (initialize_inline_failed, rebuild_cgraph_edges,
 348         pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
 349         (verify_cgraph_node): Make visited_nodes local.
 350         (cgraph_analyze_function): Do not call cgraph_create_edges and
 351         initialize_inline_failed.
 352         (cgraph_expand_function): Do not call cgraph_lower_function;
 353         assert that function is already lowered.
 354         * Makefile.in (cgraphbuild.o): New.
 355         * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
 356         at the end of lowering passes.
 357
 358 2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>
 359
 360         * ifcvt.c (cond_move_convert_if_block): New function, code
 361         factored out from...
 362         (cond_move_process_if_block): ...here.  Call the new function
 363         on the THEN and ELSE blocks.
 364         (merge_if_block): Do not copy global_live_at_end, merge_blocks
 365         already takes care of this.
 366
 367 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 368
 369         PR c/19978
 370         * tree.h (TREE_OVERFLOW_P): New.
 371         * c-typeck.c (parser_build_unary_op): Warn only if result
 372         overflowed and operands did not.
 373         (parser_build_binary_op): Likewise.
 374         (convert_for_assignment): Remove redundant overflow_warning.
 375         * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.
 376
 377 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 378
 379         * c-typeck.c (store_init_value): Split over two lines to follow
 380         the GNU coding style.
 381
 382 2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>
 383
 384         * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
 385         __GXX_EXPERIMENTAL_CXX0X__.
 386         * doc/cpp.texi: Same.
 387
 388 2007-01-05  Richard Guenther  <rguenther@suse.de>
 389
 390         PR middle-end/27826
 391         * tree.c (get_narrower): Do not construct COMPONENT_REFs
 392         with mismatched types.  Instead explicitly build a
 393         conversion NOP_EXPR.
 394
 395 2007-01-05  Ian Lance Taylor  <iant@google.com>
 396
 397         * c-common.c (decl_with_nonnull_addr_p): New function.
 398         (c_common_truthvalue_conversion): Call it.
 399         * c-typeck.c (build_binary_op): Likewise.
 400         * c-common.h (decl_with_nonnull_addr_p): Declare.
 401
 402 2007-01-05  Jakub Jelinek  <jakub@redhat.com>
 403
 404         PR c/30360
 405         * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
 406         denom against 0.0.
 407
 408 2007-01-05  Joel Brobecker  <brobecker@adacore.com>
 409
 410         * doc/install.texi (Final install): Document the fact that
 411         the GNAT runtime should not be stripped.
 412
 413 2007-01-04  Jan Hubicka  <jh@suse.cz>
 414
 415         * tree-inline.c (fold_marked_statements): Update operand caches
 416         and EH after folding
 417
 418 2007-01-04  Ian Lance Taylor  <iant@google.com>
 419
 420         * c-common.c (check_function_nonnull): Whitespace fix.
 421
 422 2007-01-04  Jan Hubicka  <jh@suse.cz>
 423
 424         * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
 425         comitted older version of patch.
 426         (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
 427         function, celanup cfg and collect garbage.
 428
 429 2007-01-04  Mike Stump  <mrs@apple.com>
 430
 431         * Makefile.in (mostlyclean): Don't remove libgcc anymore.
 432         (clean): Likewise.
 433
 434 2007-01-04  Eric Christopher  <echristo@apple.com>
 435
 436         * libgcc2.c (__bswapsi2): Use SItype.
 437         (__bswapdi2): Use DItype.
 438         * libgcc2.h: Update for above.
 439
 440 2007-01-04  Paul Brook  <paul@codesourcery.com>
 441
 442         * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
 443         mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
 444         mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
 445         umulsidi3, umulsidi3adddi, smulsi3_highpart,
 446         umulsi3_highpart): Make conditional on !arm_arch6.
 447         (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
 448         mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
 449         mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
 450         umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
 451         umulsi3_highpart_v6): New insns.
 452
 453 2007-01-04  Roger Sayle  <roger@eyesopen.com>
 454
 455         * fold-const.c (fold_convert): When casting an expression to void,
 456         fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
 457         have a type.  Instead of attempting to build a NOP_EXPR, return
 458         these "special" trees directly.
 459
 460 2007-01-04  Joseph Myers  <joseph@codesourcery.com>
 461
 462         * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
 463         MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
 464         rs6000_cost->fp not 0 as adjustment for outer NEG.
 465
 466 2007-01-04  Jan Hubicka  <jh@suse.cz>
 467
 468         * cgraph.c (cgraph_release_function_body): New function.
 469         (cgraph_remove_node): Use it.
 470         * cgraph.h (cgraph_release_function_body): Declare.
 471         * cgraphunit.c (cgraph_expand_function): Use it.
 472         * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
 473         * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
 474         is initialized and while compilation of other function is running.
 475         * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
 476         statement CFG annotations from here to ...
 477         * tree-cfg.c (delete_tree_cfg_annotations): ... here.
 478
 479 2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>
 480
 481         * cfgloop.h (enum li_flags): Make the constants powers of two.
 482
 483 2007-01-04  Jan Hubicka  <jh@suse.cz>
 484
 485         * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
 486         set.
 487         (fold_marked_statements): New function.
 488         (optimize_inline_calls, tree_function_versioning): Fold new statements.
 489         * tree-inline.h (copy_body_data): Add statements_to_fold.
 490
 491 2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>
 492
 493         * config.gcc: Mention libgcc/config.host.
 494         * Makefile.in: Update comments mentioning libgcc.
 495         (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
 496         (all.cross, start.encap, rest.encap, rest.cross): Update
 497         dependencies for libgcc move.
 498         (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
 499         (clean-target, clean-target-libgcc): Delete.
 500         (srcdirify, GCC_EXTRA_PARTS): New macros.
 501         (libgcc-support, libgcc.mvars): New rules.
 502         (distclean): Remove mention of mklibgcc.
 503         (install): Don't reference INSTALL_LIBGCC.
 504         (install-common): Don't reference EXTRA_PARTS.
 505         (install-libgcc, install-multilib): Delete rules.
 506         * mklibgcc.in: Delete file.
 507         * doc/configfiles.texi: Don't mention mklibgcc.
 508
 509         * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
 510         * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
 511         * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
 512         * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
 513         (mklibgcc, ldblspecs): Likewise.
 514
 515         * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
 516         (posixpre.def): Use $(T).
 517         (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
 518         (SHLIB_SRC, SHLIB_INSTALL): Delete.
 519         (SHLIB_LINK): Make dummy.
 520         * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.
 521
 522         * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.
 523
 524         * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
 525         * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
 526         config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
 527         config/rs6000/t-newas, config/sparc/t-elf: Likewise.
 528
 529         * configure.ac (all_outputs): Remove mklibgcc.
 530         * configure: Regenerated.
 531
 532 2007-01-03  Josh Conner  <jconner@apple.com>
 533
 534         PR middle-end/29683
 535         * calls.c (compute_argument_addresses): Set stack and stack_slot
 536         for partial args, too.
 537         (store_one_arg): Use locate.size.constant for the size when
 538         generating a save_area.
 539
 540 2007-01-03  Robert Kennedy <jimbob@google.com>
 541
 542         * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
 543         whose definitions are deleted due to basic block merging.
 544
 545 2007-01-03  Paul Brook  <paul@codesourcery.com>
 546
 547         PR target/16634
 548         * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
 549         functions.
 550         (use_return_insn): Return 0 for Thumb interrupt functions.
 551         (print_multi_reg): Add rfe argument for IRQ returns.
 552         (arm_output_epilogue): Pop interrupt return address directly into PC.
 553         (arm_expand_prologue): Only adjust IRQ return address in Arm mode.
 554
 555 2007-01-03  Paul Brook  <paul@codesourcery.com>
 556
 557         Merge from sourcerygxx-4_1.
 558         * config/arm/thumb2.md: New file.
 559         * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
 560         Thumb-2.
 561         * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
 562         * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
 563         (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
 564         * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
 565         tables.
 566         (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
 567         * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
 568         comptibility.
 569         * config/arm/ieee754-sf.S: Ditto.
 570         * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
 571         (thumb1_base_register_rtx_p): ... to this.
 572         (thumb_index_register_rtx_p): Rename...
 573         (thumb1_index_register_rtx_p): ... to this.
 574         (thumb_output_function_prologue): Rename...
 575         (thumb1_output_function_prologue): ... to this.
 576         (thumb_legitimate_address_p): Rename...
 577         (thumb1_legitimate_address_p): ... to this.
 578         (thumb_rtx_costs): Rename...
 579         (thumb1_rtx_costs): ... to this.
 580         (thumb_compute_save_reg_mask): Rename...
 581         (thumb1_compute_save_reg_mask): ... to this.
 582         (thumb_final_prescan_insn): Rename...
 583         (thumb1_final_prescan_insn): ... to this.
 584         (thumb_expand_epilogue): Rename...
 585         (thumb1_expand_epilogue): ... to this.
 586         (arm_unwind_emit_stm): Rename...
 587         (arm_unwind_emit_sequence): ... to this.
 588         (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
 589         thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
 590         thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
 591         arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
 592         thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
 593         thumb2_output_casesi): New functions.
 594         (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
 595         (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
 596         FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
 597         THUMB2_WORK_REGS): Define.
 598         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
 599         arm_condexec_mask, arm_condexec_masklen)): New variables.
 600         (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
 601         (arm_override_options): Check new CPU capabilities.
 602         Set new architecture flag variables.
 603         (arm_isr_value): Handle v7m interrupt functions.
 604         (user_return_insn): Return 0 for v7m interrupt functions.  Handle
 605         Thumb-2.
 606         (const_ok_for_arm): Handle Thumb-2 constants.
 607         (arm_gen_constant): Ditto.  Use movw when available.
 608         (arm_function_ok_for_sibcall): Return false for v7m interrupt
 609         functions.
 610         (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
 611         (thumb_find_work_register, arm_load_pic_register,
 612         legitimize_tls_address, arm_address_cost, load_multiple_sequence,
 613         emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
 614         print_multi_reg, output_mov_long_double_fpa_from_arm,
 615         output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
 616         output_mov_double_fpa_from_arm, output_move_double,
 617         arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
 618         output_return_instruction, arm_output_function_prologue,
 619         arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
 620         arm_output_mi_thunk, thumb_set_return_address): Ditto.
 621         (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
 622         (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
 623         (arithmetic_instr, shift_op): Use arm_shift_nmem.
 624         (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
 625         '!' and 'L'.
 626         (arm_final_prescan_insn): Use extract_constrain_insn_cached.
 627         (thumb_expand_prologue): Use thumb_set_frame_pointer.
 628         (arm_file_start): Output directive for unified syntax.
 629         (arm_unwind_emit_set): Handle stack alignment instruction.
 630         * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
 631         Add v6t2, v7, v7a, v7r and v7m.
 632         (RETLDM): Add Thumb-2 code.
 633         (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
 634         * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
 635         (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
 636         TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
 637         THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
 638         ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
 639         THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
 640         CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
 641         ADJUST_INSN_LENGTH): Define.
 642         (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
 643         STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
 644         BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
 645         PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
 646         SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
 647         TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
 648         HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
 649         HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
 650         REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
 651         REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
 652         LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
 653         GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
 654         ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
 655         FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
 656         PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
 657         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
 658         * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
 659         cortex-m3.
 660         * config/arm/arm-tune.md: Regenerate.
 661         * config/arm/arm-protos.h: Update prototypes.
 662         * config/arm/vfp.md: Enable patterns for Thumb-2.
 663         (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
 664         (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
 665         (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
 666         thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
 667         * config/arm/libunwind.S: Add Thumb-2 code.
 668         * config/arm/constraints.md: Update include Thumb-2.
 669         * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
 670         * config/arm/ieee754-df.S: Ditto.
 671         * config/arm/bpabi.S: Ditto.
 672         * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
 673         * config/arm/predicates.md (low_register_operand,
 674         low_reg_or_int_operand, thumb_16bit_operator): New.
 675         (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
 676         (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
 677         * config/arm/t-arm-elf: Add armv7 multilib.
 678         * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
 679         Include thumb2.md.
 680         (UNSPEC_STACK_ALIGN, ce_count): New.
 681         (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
 682         arm_zero_extendsidi2, arm_zero_extendqidi2): New
 683         insns/expanders.
 684         * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
 685         (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
 686         thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
 687         * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
 688         (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
 689         thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
 690         insns.
 691         * doc/extend.texi: Document ARMv7-M interrupt functions.
 692         * doc/invoke.texi: Document Thumb-2 new cores+architectures.
 693
 694 2007-01-03  Jakub Jelinek  <jakub@redhat.com>
 695
 696         * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
 697         (struct _Unwind_Context): Rename args_size to flags, remove
 698         signal_frame field, add a new args_size field and version field.
 699         (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
 700         _Unwind_IsExtendedContext): New inline functions.
 701         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
 702         Assume by_value array is only present if _Unwind_IsExtendedContext.
 703         (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
 704         _Unwind_IsSignalFrame.
 705         (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
 706         (uw_update_context_1): Use _Unwind_SetSignalFrame.
 707         (uw_init_context_1): Initialize context->flags to
 708         EXTENDED_CONTEXT_BIT.
 709         * config/rs6000/linux-unwind.h (frob_update_context): Use
 710         _Unwind_SetSignalFrame.
 711
 712 2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 713
 714         PR middle-end/30353
 715         * gimplify.c (gimplify_modify_expr_complex_part): Move below
 716         tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
 717         the value.
 718
 719 2007-01-03  Kazu Hirata  <kazu@codesourcery.com>
 720
 721         * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
 722         REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
 723         RET, AT_SP): Remove.
 724         * config/i386/i386.md (*sse_prologue_save_insn): Use return
 725         instead of RET.
 726
 727         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 728         * cfgbuild.c (find_basic_blocks): Likewise.
 729         * cfgrtl.c (rtl_create_basic_block): Likewise.
 730         * function.c (temp_slots_at_level): Likewise.
 731         * reg-stack.c (stack_regs_mentioned): Likewise.
 732         * regclass.c (allocate_reg_info): Likewise.
 733         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 734         set_bb_for_stmt, move_block_to_fn): Likewise.
 735         * tree-complex.c (tree_lower_complex): Likewise.
 736         * vec.h (VEC_safe_grow_cleared): New.
 737
 738         * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.
 739
 740 2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>
 741
 742         * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
 743         * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
 744         to loop_version.
 745         * cfgloopmanip.c (scale_loop_frequencies): Export.
 746         (loopify): Scale the frequencies by prescribed coefficients.
 747         (set_zero_probability): New function.
 748         (duplicate_loop_to_header_edge): Improve updating of frequencies.
 749         (lv_adjust_loop_entry_edge, loop_version): Set probabilities
 750         and frequencies according to arguments.
 751         * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
 752         correctly.
 753         * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
 754         * modulo-sched.c (sms_schedule): Set probabilities for entering
 755         versioned loop correctly.
 756         * tree-vect-transform.c (vect_transform_loop): Ditto.
 757         * cfgloop.h (loopify, loop_version): Declaration changed.
 758         (scale_loop_frequencies): Declared.
 759
 760 2007-01-02  Jan Hubicka  <jh@suse.cz>
 761
 762         * cgraph.c: Include tree-flow.h
 763         (cgraph_add_new-function): Handle IPA_SSA mode; execute
 764         early_local_passes.
 765         * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
 766         * tree-pass.h (pass_all_early_optimizations): Declare.
 767         * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
 768         early_local_passes.
 769         (cgraph_analyze_function): Do early_local_passes.
 770         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
 771         Do not add referenced vars.
 772         * tree-optimize.c (gate_all_optimizations): Do not execute when not in
 773         SSA form.
 774         (gate_all_early_local_passes): New gate.
 775         (pass_early_local_passes): Use new gate.
 776         (execute_early_local_optimizations): New functions.
 777         (gate_all_early_optimizations): New gate.
 778         (pass_all_early_optimizations): New pass.
 779         (execute_free_datastructures): Free SSA only when initialized.
 780         (gate_init_datastructures): Init only when optimizing.
 781         (tree_lowering_passes): Do early local passes when called late.
 782         * tree-profile.c (do_tree_profiling): Don't profile functions added
 783         late.
 784         (do_early_tree_profiling, pass_early_tree_profile): Kill.
 785         * tree-cfg.c (update_modified_stmts): Do not update when operands are
 786         not active.
 787         * passes.c (init_optimizations_passes): Reorder so we go into SSA
 788         during early_local_passes.
 789         * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
 790
 791
 792 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
 793
 794         * Makefile.in: Update copyright year.
 795
 796 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
 797
 798         * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
 799         in $(lang_checks) and check-consistency targets.
 800
 801 2007-01-02  Jan Hubicka  <jh@suse.cz>
 802
 803         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
 804         Do not add referenced vars.
 805         * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
 806         are not active.
 807         * passes.c (init_optimization_passes): Put mudflap_2 after
 808         free_datastructures.
 809
 810 2007-01-02  Jan Hubicka  <jh@suse.cz>
 811
 812         * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
 813         Set NOTHROW flag on call statements proved to be nothrow.
 814         Update statement of local calls so new pure/const functions are
 815         updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
 816         goto receivers.
 817         (tree_rest_of_compilation): Register hooks and initialize bitmap
 818         early. Do not set after_inlining flag.
 819
 820 2007-01-02  Steve Ellcey  <sje@cup.hp.com>
 821
 822         * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
 823         HOST_BITS_PER_LONGLONG
 824
 825 2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>
 826
 827         PR c/19977
 828         * c-typeck.c (store_init_value): Don't emit pedantic overflow
 829         warning for non-static initializers.
 830
 831 2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>
 832
 833         * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
 834         m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
 835         rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
 836         Always use set_unique_reg_note to add REG_EQUAL notes.
 837
 838 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 839
 840         Revert:
 841         2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 842
 843         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 844         * cfgbuild.c (find_basic_blocks): Likewise.
 845         * cfgrtl.c (rtl_create_basic_block): Likewise.
 846         * function.c (temp_slots_at_level): Likewise.
 847         * reg-stack.c (stack_regs_mentioned): Likewise.
 848         * regclass.c (allocate_reg_info): Likewise.
 849         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 850         set_bb_for_stmt, move_block_to_fn): Likewise.
 851         * tree-complex.c (tree_lower_complex): Likewise.
 852         * vec.h (VEC_safe_grow_cleared): New.
 853
 854 2007-01-02  Ian Lance Taylor  <iant@google.com>
 855
 856         * c-common.c (c_common_truthvalue_conversion): When warning about
 857         using an assignment as a truth value, set TREE_NO_WARNING.
 858
 859 2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 860
 861         PR middle-end/7651
 862         * c.opt (Wold-style-declaration): New.
 863         * doc/invoke.texi (C-only Warning Options): New.
 864         (Wold-style-declaration): Document it.
 865         (Wextra): Enabled by -Wextra.
 866         * c-opts.c (c_common_post_options): Enabled by -Wextra.
 867         * c-decl.c (declspecs_add_scspec): Replace -Wextra with
 868         -Wold-style-declaration.
 869
 870 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
 871
 872         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
 873         * cfgbuild.c (find_basic_blocks): Likewise.
 874         * cfgrtl.c (rtl_create_basic_block): Likewise.
 875         * function.c (temp_slots_at_level): Likewise.
 876         * reg-stack.c (stack_regs_mentioned): Likewise.
 877         * regclass.c (allocate_reg_info): Likewise.
 878         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
 879         set_bb_for_stmt, move_block_to_fn): Likewise.
 880         * tree-complex.c (tree_lower_complex): Likewise.
 881         * vec.h (VEC_safe_grow_cleared): New.
 882
 883 2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>
 884
 885         * c-common.c(c_common_nodes_and_builtins): Since variants of
 886         void_type_node get built before it is given a name, we need to
 887         give those variants the name, too.
 888         (complete_array_type): We need to work with the canonical main
 889         type of the array, from which we will build the qualified version.
 890         * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
 891         * print-tree.c (print_node): Display canonical type information
 892         for each type.
 893         * stor-layout.c (layout_type): When we don't know the
 894         alignment of a type for which we're building an array, we end up
 895         guessing wrong, so make the type require structural equality.
 896         * tree.c (make_node_stat): When we build a new type, it is its
 897         own canonical type.
 898         (build_type_attribute_qual_variant): When building an attribute
 899         variant, its canonical type is the non-attribute variant. However,
 900         if the attributes are target-dependent and they differ, we need to
 901         use structural equality checks for this type.
 902         (build_qualified_type): A qualified type is not equivalent to its
 903         unqualified variant; set the canonical type appropriately.
 904         (build_distinct_type_copy): When building a distinct type from
 905         another type, the new type is its own canonical type.
 906         (build_variant_type_copy): When building a new type variant, we
 907         assume that it is equivalent to the original type.
 908         (build_pointer_type_for_mode): When building a pointer type, also
 909         build a canonical type pointer.
 910         (build_reference_type_for_mode): When building a reference type,
 911         also build a canonical type reference.
 912         (build_index_type): When we can't hash an index type (e.g.,
 913         because its maximum value is negative), the index type requires
 914         structural equality tests.
 915         (build_array_type): Build the canonical form of an array type.
 916         (build_function_type): Function types require structural equality,
 917         because they contain default arguments, attributes, etc.
 918         (build_method_type_directly): Ditto for method types.
 919         (build_offset_type): Build the canonical offset type.
 920         (build_complex_type): Build the canonical vector type.
 921         (make_vector_type): Build the canonical vector type.
 922         * tree.h (TYPE_CANONICAL): New.
 923         (TYPE_STRUCTURAL_EQUALITY_P): New.
 924         (SET_TYPE_STRUCTURAL_EQUALITY): New.
 925         (struct tree_type): Added "canonical" field.
 926         * params.h (VERIFY_CANONICAL_TYPES): New.
 927         * doc/c-tree.texi (TYPE_CANONICAL): Document.
 928         (TYPE_STRUCTURAL_EQUALITY_P): Document.
 929         (SET_TYPE_STRUCTURAL_EQUALITY): Document.
 930         * doc/invoke.texi (verify-canonical-types): Document --param
 931         parameter for verifying canonical types.
 932
 933 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 934
 935         * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
 936         powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
 937         powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
 938         powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
 939         tm_file.
 940         * config/rs6000/e500.h: New.
 941         * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
 942         TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
 943         Remove.
 944         * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
 945         TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
 946         TARGET_E500_DOUBLE): Remove.
 947         * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
 948         TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
 949         * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
 950         * config/rs6000/rs6000.c (rs6000_override_options): Use
 951         CHECK_E500_OPTIONS.
 952
 953 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 954
 955         * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
 956         TARGET_E500_DOUBLE), not TARGET_E500, for %y.
 957         (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
 958         rs6000_emit_cmove): Don't check TARGET_E500.
 959         * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
 960         sordered): Don't check TARGET_E500.
 961
 962 2007-01-01  Eric Christopher  <echristo@apple.com>
 963
 964         * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
 965         HARD_REGISTER_NUM_P.
 966
 967 2007-01-01  Roger Sayle  <roger@eyesopen.com>
 968
 969         * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
 970         "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
 971         has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
 972         eq/ne Y".
 973
 974 2007-01-01  Mike Stump  <mrs@apple.com>
 975
 976         * configure.ac: Remove support for building with Apple's gcc-3.1.
 977
 978 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
 979
 980         PR middle-end/30311
 981         * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
 982         REG is a hard register.  Do not modify REG before calling
 983         subreg_nregs.
 984         * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
 985         multiple of the size of YMODE for certain lowpart cases.
 986
 987 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
 988
 989         PR middle-end/30253
 990         * gimplify (voidify_wrapper_expr): Update for
 991         GIMPLE_MODIFY_STMT.
 992
 993 2007-01-01  Andreas Schwab  <schwab@suse.de>
 994
 995         PR target/29166
 996         * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
 997         save of BR0 in extra_spill_size instead of spill_size.
 998         (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
 999         area.
1000         (ia64_expand_epilogue): Restore BR0 from its new location.
1001
1002 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1003
1004         * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
1005         Use a temporary variable if the left hand side is not a gimple
1006         register.
1007
1008 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1009
1010         * gimplify.c (gimplify_return_expr): Make the temporary variable
1011         for the return expression, a gimple register variable.
1012
1013 2007-01-01  Jan Hubicka  <jh@suse.cz>
1014
1015         * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
1016         INSN_LIST.
1017
1018 2007-01-01  Mike Stump  <mrs@apple.com>
1019
1020         * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
1021         .literal16.
1022         * config/darwin.c (machopic_select_rtx_section): Use
1023         HAVE_GAS_LITERAL16.
1024         (darwin_mergeable_constant_section): Likewise.
1025         * configure: Regenerate.
1026         * config.in: Regenerate.
1027
1028 2007-01-01  Jan Hubicka  <jh@suse.cz>
1029             Andrew Pinski  <pinskia@gmail.com>
1030
1031         * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
1032         before starting IPA passes.