gcc/ChangeLog

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