gcc/ChangeLog

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