gcc/ChangeLog

   1 2007-01-12  Julian Brown  <julian@codesourcery.com>
   2             Nathan Sidwell  <nathan@codesourcery.com>
   3             Richard Sandiford  <richard@codesourcery.com>
   4
   5         * config.gcc (m680[012]0-*-*, m68k*-*-*): Set m68k_cpu_ident to
   6         the -mcpu= argument associated with the --with-cpu setting.
   7         Define M68K_DEFAULT_TUNE to the default -mtune= option,
   8         if different from the one implied by the -mcpu setting.
   9         Accept --with-cpu=FOO if FOO is listed in m68k-devices.def,
  10         using mcpu=FOO as the default CPU option.  Set target_cpu_default2.
  11         * doc/invoke.texi: Mention ColdFire in the introduction to the
  12         m68k options.  Document the new -march, -mcpu, -mtune, -mdiv,
  13         -mno-div and -mhard-float options.  Make -m68881 a synonym for
  14         -mhard-float.  Document the previously-undocumented -m5206e,
  15         -m528x, -m5307 and -m5407 options.  Tweak the existing option
  16         documentation for consistency.
  17         * doc/install.texi: Mention new --with-cpu arguments.
  18         * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Only use the
  19         default CPU if neither -mcpu nor -march are specified.
  20         (ASM_CPU_SPEC): Pass down -mcpu and -march options.
  21         (TARGET_CPU_CPP_BUILTINS): Set __mcfisa*__ macros from
  22         TARGET_ISA*.  Set the legacy __mcf*__ cpu macros in the same way,
  23         using m68k_tune to decide between families that implement the
  24         same ISA.  Use m68k_tune to set __mcfv4e__.
  25         (FL_BITFIELD, FL_68881, FL_COLDFIRE, FL_CF_HWDIV, FL_CF_MAC)
  26         (FL_CF_EMAC, FL_CF_EMAC_B, FL_CF_USP, FL_CF_FPU, FL_ISA_68000)
  27         (FL_ISA_68010, FL_ISA_68020, FL_ISA_68040, FL_ISA_A, FL_ISA_B)
  28         (FL_ISA_C, FL_ISA_MMU): New macros.
  29         (MASK_COLDFIRE): Delete.
  30         (TARGET_68010, TARGET_68020, TARGET_68040_ONLY, TARGET_COLDFIRE)
  31         (TARGET_ISAB): Redefine in terms of m68k_cpu_flags.
  32         (TARGET_68881, TARGET_COLDFIRE_FPU): Redefine in terms of m68k_fpu.
  33         (TARGET_HARD_FLOAT): Do not define here.
  34         (TARGET_ISAAPLUS, TARGET_ISAC): New macros.
  35         (TUNE_68000): New macro.
  36         (TUNE_68000_10): Redefine in terms of TUNE_68000 and TUNE_68010.
  37         (TUNE_68010, TUNE_68030, TUNE_68040, TUNE_68060, TUNE_CPU32)
  38         (TUNE_CFV2): Redefine in terms of m68k_tune.
  39         (uarch_type, target_device, fpu_type): New enums.
  40         (m68k_cpu, m68k_tune, m68k_fpu, m68k_cpu_flags): Declare.
  41         * config/m68k/m68k.c (TARGET_DEFAULT): Remove MASK_68881.
  42         (FL_FOR_isa_00, FL_FOR_isa_10, FL_FOR_isa_20, FL_FOR_isa_40)
  43         (FL_FOR_isa_cpu32, FL_FOR_isa_a, FL_FOR_isa_aplus, FL_FOR_isa_b)
  44         (FL_FOR_isa_c): New macros.
  45         (m68k_isa): New enum.
  46         (m68k_target_selection): New structure.
  47         (all_devices, all_isas, all_microarchs): New tables.
  48         (m68k_cpu_entry, m68k_arch_entry, m68k_tune_entry, m68k_cpu)
  49         (m68k_tune, m68k_fpu, m68k_cpu_flags): New variables.
  50         (MASK_ALL_CPU_BITS): Delete.
  51         (m68k_find_selection): New function.
  52         (m68k_handle_option): Handle -mcpu=, -march= and -mtune=.
  53         Map the legacy target options to a combination of the new ones.
  54         (override_options): Set m68k_cpu, m68k_tune, m68k_fpu and
  55         m68k_cpu_flags.  Handle M68K_DEFAULT_TUNE.  Use m68k_cpu_flags
  56         to derive default MASK_BITFIELD, MASK_CF_HWDIV and MASK_HARD_FLOAT
  57         settings.
  58         * config/m68k/m68k.opt (m5200, m5206e, m528x, m5307, m5407, mcfv4e)
  59         (m68010, m68020, m68020-40, m68020-60, m68030, m68040): Remove Mask
  60         properties.
  61         (m68881, msoft-float): Change mask from 68881 to HARD_FLOAT.
  62         (march=, mcpu=, mdiv, mhard-float, mtune=): New options.
  63         * config/m68k/m68k-devices.def: New file.
  64
  65 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
  66             Nathan Sidwell  <nathan@codesourcery.com>
  67
  68         * config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
  69         (SUBTARGET_EXTRA_SPECS): New macros.
  70         * config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
  71         use %(asm_cpu_spec) instead.
  72         * config/m68k/m68k-none.h (ASM_SPEC): Likewise.
  73         * config/m68k/openbsd.h (ASM_SPEC): Likewise.
  74         * config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
  75         (EXTRA_SPECS): Rename to...
  76         (SUBTARGET_EXTRA_SPECS): ...this.
  77
  78 2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
  79             Richard Sandiford  <richard@codesourcery.com>
  80             Julian Brown  <julian@codesourcery.com>
  81
  82         * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
  83         (m68k-*-uclinux*, m68k-*-linux*, m68k-*-rtems*): Set default_m68k_cpu
  84         to the configuration's default CPU.
  85         (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*): Likewise.
  86         Remove default masks.
  87         (m680[012]0-*-*): Set the default with_cpu to the first part of
  88         the target name.
  89         (m68k*-*-*): Set the default with_cpu to m$default_m68k_cpu.
  90         (m68k*-*-linux): Extend the --with-cpu handling to...
  91         (m680[012]0-*-*, m68k*-*-*): ...these configurations.  Allow m68000
  92         and m68010.  Don't set target_cpu_default2.
  93         * doc/install.texi: Document --with-cpu for m68k.
  94         * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Define.
  95         * config/m68k/m68k-none.h (TARGET_CPU_DEFAULT, M68K_CPU_m68k)
  96         (M68K_CPU_m68000, M68K_CPU_m68010, M68K_CPU_m68020, M68K_CPU_m68030)
  97         (M68K_CPU_m68040, M68K_CPU_m68302, M68K_CPU_m68332, TARGET_DEFAULT)
  98         (ASM_CPU_DEFAULT_SPEC, CC1_CPU_DEFAULT_SPEC): Delete.
  99         (ASM_SPEC): Remove use of %(asm_cpu_default).
 100         (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS, MULTILIB_DEFAULTS): Delete.
 101         * config/m68k/linux.h (TARGET_DEFAULT): Delete.
 102         (CPP_SPEC): Merge definitions.  Do not handle __HAVE_68881__ here.
 103         * config/m68k/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Define
 104         __HAVE_FPU__ if TARGET_HARD_FLOAT.
 105         (TARGET_DEFAULT): Delete.
 106         (EXTRA_SPECS): Delete cpp_cpu_default_spec, cpp_cpu_spec,
 107         cpp_fpu_spec, asm_default_spec and netbsd_cpp_spec.
 108         (CPP_CPU_SPEC): Delete.
 109         (TARGET_VERSION): Merge definitions, using TARGET_68010 to pick
 110         the appropriate string.
 111         (CPP_CPU_DEFAULT_SPEC, ASM_DEFAULT_SPEC, CPP_FPU_SPEC): Delete.
 112         (CPP_SPEC): Define to NETBSD_CPP_SPEC.
 113         (ASM_SPEC): Don't use %(asm_default_spec).
 114         * config/m68k/m68k.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
 115         TARGET_DEFAULT and add MASK_68881.
 116         * config/m68k/m68k.md: Remove mention of TARGET_DEFAULT from comments.
 117
 118 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
 119
 120         * config.gcc (m68010-*-netbsdelf*): Add MASK_68010.
 121         (m68k*-*-netbsdelf*, m68k*-*-openbsd*, m68k*-linux*): Add
 122         MASK_68010 alongside MASK_68020.
 123         * doc/invoke.texi: Document -m68010.
 124         * config/m68k/m68k.opt (m68010): New.
 125         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define mc68010
 126         if TUNE_68010.
 127         (TUNE_68010): New macro.
 128         * config/m68k/m68k-none.h (M68K_CPU_m68k, M68K_CPU_m68010)
 129         (M68K_CPU_m68020, M68K_CPU_m68030, M68K_CPU_m68040)
 130         (M68K_CPU_m68332): Add MASK_68010.
 131         * config/m68k/linux.h (TARGET_DEFAULT): Add MASK_68010 to
 132         fallback definition.
 133         * config/m68k/netbsd-elf.h (CPP_CPU_SPEC): Remove now-redundant
 134         defines.
 135         * config/m68k/m68k.c (MASK_ALL_CPU_BITS): Add MASK_68010.
 136         (m68k_handle_option): Handle OPT_m68010.  Add MASK_68010
 137         to all entries that use MASK_68020.
 138         (output_move_simode_const, output_move_himode, output_move_qimode)
 139         (output_move_stricthi, output_move_strictqi): Use TARGET_68010
 140         instead of TARGET_68020 to select clr behavior.  Remove comment
 141         about there being no TARGET_68010.
 142         * config/m68k/m68k.md: Likewise throughout.
 143
 144 2007-01-12  Julian Brown  <julian@codesourcery.com>
 145
 146         * config/m68k/m68k.h (TARGET_ISAB): New macro.
 147         * config/m68k/m68k.c: Use TARGET_ISAB rather than TARGET_CFV4.
 148         * config/m68k/m68k.md: Likewise.
 149
 150 2007-01-12  Julian Brown  <julian@codesourcery.com>
 151
 152         * config/m68k/m68k.h (LEGITIMATE_INDEX_P, LEGITIMIZE_ADDRESS): Use
 153         TARGET_COLDFIRE_FPU instead of TARGET_CFV4E.
 154
 155 2007-01-12  Julian Brown  <julian@codesourcery.com>
 156
 157         * config/m68k/m68k.h (TUNE_68040_60): New macro.
 158         * config/m68k/m68k.c (standard_68881_constant_p): Use it.
 159         * config/m68k/m68k.md: Likewise.
 160
 161 2007-01-12  Julian Brown  <julian@codesourcery.com>
 162             Richard Sandiford  <richard@codesourcery.com>
 163
 164         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Use TUNE_68030
 165         instead of TARGET_68030, TUNE_68040 instead of TARGET_68040,
 166         TUNE_68060 instead of TARGET_68060 and TUNE_CPU32 instead of
 167         TARGET_CPU32.
 168         (TARGET_CPU32): Rename to...
 169         (TUNE_CPU32): ...this.
 170         (TUNE_68000_10, TUNE_68030, TUNE_68040, TUNE_68060)
 171         (TUNE_CFV2): New macros.
 172         * config/m68k/netbsd-elf.h (LONG_DOUBLE_TYPE_SIZE): Simplify;
 173         remove conditions that are implied by TARGET_68020.
 174         * config/m68k/m68k.c (m68k_output_function_prologue): Use TUNE_68040
 175         instead of TARGET_68040 and TUNE_CPU32 instead of TARGET_CPU32.
 176         (m68k_output_function_epilogue): Likewise.
 177         (m68k_rtx_costs): Likewise.  Use TUNE_68060 instead of TARGET_68060
 178         and TUNE_CFV2 instead of TARGET_5200.  Use TUNE_68000_10 instead of
 179         "!TARGET_68020 && !TARGET_COLDFIRE" to choose between 68000 and
 180         non-68000 timings.  Refactor multiplication and division costs.
 181         (output_addsi3): Use TUNE_68040 instead of TARGET_68040 and
 182         TUNE_CPU32 instead of TARGET_CPU32.
 183         (standard_68881_constant_p): Use TUNE_68040 instead of TARGET_68040
 184         and TUNE_68060 instead of TARGET_68060.
 185         * config/m68k/m68k.md: Use TUNE_68040 instead of TARGET_68040,
 186         TUNE_68060 instead of TARGET_68060, and TUNE_CPU32 instead of
 187         TARGET_CPU32.
 188         (movsi_const0): Use TUNE_68000_10 rather than "!TARGET_68020
 189         && !TARGET_COLDFIRE" to choose between moveq and clr.
 190         Likewise in the unnamed movsf pattern.
 191         (ashlsi_17_24, lshrsi_17_24): Guard with TUNE_68000_10 rather than
 192         "!TARGET_68020 && !TARGET_COLDFIRE".  Likewise the unnamed
 193         ashiftrt pattern.
 194
 195 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
 196
 197         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Increase amount
 198         of tabbing before backslashes.
 199
 200 2007-01-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 201
 202         * pa-linux.h (ASM_OUTPUT_INTERNAL_LABEL): Undefine.
 203         * pa.h (ASM_OUTPUT_LABEL): Output colon when using GAS.
 204         (ASM_OUTPUT_INTERNAL_LABEL): Define.
 205
 206 2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>
 207
 208         * tree-ssa-loop-ivopts.c (extract_cond_operands): Split from
 209         find_interesting_uses_cond.
 210         (find_interesting_uses_cond): Use extract_cond_operands.
 211         (rewrite_use_compare): Use extract_cond_operands and
 212         force_gimple_operand_bsi.  Do not call update_stmt.
 213         (determine_use_iv_cost_condition): Use extract_cond_operands.
 214         Return cheaper of using original bound and changing the exit bound.
 215
 216 2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>
 217
 218         PR tree-optimization/29516
 219         * tree-ssa-address.c (tree_mem_ref_addr, add_to_parts,
 220         most_expensive_mult_to_index, addr_to_parts,
 221         create_mem_ref, maybe_fold_tmr): Make the type of
 222         fields of TARGET_MEM_REF sizetype.
 223         (move_fixed_address_to_symbol, move_pointer_to_base):
 224         New functions.
 225         * tree.def (TARGET_MEM_REF): Add comment on types of
 226         the operands.
 227
 228 2007-01-11  Joseph Myers  <joseph@codesourcery.com>
 229
 230         * c-common.c (vector_types_convertible_p): Treat opaque types as
 231         always convertible if they have the same size, but not otherwise.
 232
 233 2007-01-11  Steven Bosscher  <steven@gcc.gnu.org>
 234
 235         * ifcvt.c (struct noce_if_info): Add comments to the fields.
 236         Remove the b_unconditional field.
 237         (noce_try_sign_mask): Do not look at b_unconditional.
 238         (noce_process_if_block): Do not use merge_if_blocks.  Update
 239         the CFG here.  Do not set b_unconditional.
 240         (cond_move_process_if_block): Likewise.
 241         (find_cond_trap): Likewise.
 242         (check_cond_move_block): Require simple jump insns at the end
 243         of the basic block.
 244
 245 2007-01-11  Jan Hubicka  <jh@suse.cz>
 246
 247         PR tree-optimization/1046
 248         * tree-tailcall.c (suitable_for_tail_call_opt_p): Use TREE_ADDRESSABLE
 249         when alias info is not ready.
 250         (pass_tail_recursion): Do not require aliasing.
 251         * tree-ssa-copyrename.c (pass_rename_ssa_cop): Likewise.
 252         * tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Likewise.
 253         * tree-ssa-copy.c (pass_copy_prop): Likewise.
 254         * tree-ssa-forwprop.c (pass_forwprop): Likewise.
 255         * tree-ssa-dce.c (pass_dce, pass_dce_loop, pass_cd_dce): Likewise.
 256         * passes.c (init_optimization_passes): Execute rename_ssa_copies,
 257         ccp, forwprop, copy_prop, merge_phi, copy_prop, dce and tail recursion
 258         before inlining.
 259         * tree-ssa-operands.c (add_virtual_operand, get_indirect_ref_operand):
 260         When aliasing is not build, mark statement as volatile.
 261
 262 2007-01-11  Tom Tromey  <tromey@redhat.com>
 263
 264         PR preprocessor/15185, PR preprocessor/20989:
 265         * doc/cppopts.texi <-MT>: Update description of algorithm for
 266         computing default target.
 267         <-M, -MD>: Reword "basename" text.
 268
 269 2007-01-11  Roger Sayle  <roger@eyesopen.com>
 270
 271         * builtins.c (expand_builtin_pow, expand_builtin_powi,
 272         fold_builtin_cabs, fold_builtin_sqrt, fold_builtin_trunc,
 273         fold_builtin_floor, fold_builtin_ceil, fold_builtin_round,
 274         fold_builtin_int_int_roundingfn, fold_builtin_bitop,
 275         fold_builtin_bswap, real_constp, fold_builtin_pow,
 276         fold_builtin_powi, fold_builtin_signbit, fold_builtin_copysign,
 277         do_mpfr_arg1, do_mpfr_arg2, do_mpfr_arg3, do_mpfr_sincos): Replace
 278         uses of the macro TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
 279         * convert.c (convert_to_pointer): Likewise.
 280         * expr.c (highest_pow2_factor, expand_expr_real_1): Likewise.
 281         * fold-const.c (force_fit_type, fold_negate_expr, int_const_binop,
 282         const_binop, fold_convert_const_int_from_int,
 283         fold_convert_const_int_from_real,
 284         fold_convert_const_real_from_real, sign_bit_p,
 285         optimize_minmax_comparison, extract_muldiv_1, fold_div_compare,
 286         fold_sign_changed_comparison, fold_unary, fold_comparison,
 287         fold_binary, multiple_of_p, tree_Expr_non_zero_p,
 288         fold_negate_const, fold_abs_const, fold_not_const): Likewise.
 289         * print-tree.c (print_node_brief, print_node): Likewise.
 290         * stor-layout.c (place_field, layout_type): Likewise.
 291         * tree-chrec.c (keep_cast): Likewise.
 292         * tree.c (build_vector, build_real, build_real_from_int_cst,
 293         build_complex): Likewise.
 294
 295 2007-01-11  Roger Sayle  <roger@eyesopen.com>
 296
 297         * tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
 298         treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.
 299
 300 2007-01-11  Paolo Bonzini  <bonzini@gnu.org>
 301
 302         * configure.ac (strict1_warn): Rename to strict_warn.
 303         (WERROR, --enable-werror, symlink hacks, stage1_cflags,
 304         cc_set_by_configure, quoted_cc_set_by_configure,
 305         stage_prefix_set_by_configure, quoted_stage_prefix_set_by_configure,
 306         all_boot_languages, all_stagestuff): Remove.
 307         (target_list): Remove bootstrap targets.
 308         * Makefile.in (quickstrap): Unconditionally make a synonym of all.
 309         (BOOT_LANGUAGES, STAGE1_CFLAGS, STAGE1_CHECKING,
 310         REMAKEFLAGS, FLAGS_TO_PASS, PREPEND_DOTDOT_TO_RELATIVE_PATHS,
 311         SUBDIR_FLAGS_TO_PASS, WERROR_FLAGS, STRICT2_WARN, LANG_STAGESTUFF,
 312         VOL_FILES, POSTSTAGE1_FLAGS_TO_PASS, STAGE2_FLAGS_TO_PASS,
 313         STAGEPROFILE_FLAGS_TO_PASS, STAGEFEEDBACK_FLAGS_TO_PASS, stage1_build,
 314         stage1_copy, stage2_build, stage2_copy, stageprofile_build,
 315         stageprofile_copy, stage3_build, stage3_copy, stagefeedback_build,
 316         stagefeedback_copy, stage4_build, clean_s1, clean_sw, bootstrap,
 317         bootstrap-lean, bootstrap2, bootstrap2-lean, bootstrap3,
 318         bootstrap3-lean, bootstrap4, bootstrap4-lean, unstage1, unstage2,
 319         unstage3, unstage4, unstageprofile, unstagefeedback, restage, restage2,
 320         restage3, restage4, restageprofile, restagefeedback, bubbleestrap,
 321         cleanstrap, unstrap, restrap, *compare, *compare3, *compare4,
 322         *compare-lean, *compare3-lean, *compare4-lean, stage1-start, stage1,
 323         stage2-start, stage2, stage3-start, stage3, stage4-start, stage4,
 324         stageprofile-start, stageprofile, stagefeedback-start, stagefeedback,
 325         risky-stage1, risky-stage2, risky-stage3, risky-stage4): Remove.
 326         (ORDINARY_FLAGS_TO_PASS): Rename to FLAGS_TO_PASS.
 327         (STAGECOPYSTUFF, STAGEMOVESTUFF): Consolidate into MOSTLYCLEANFILES.
 328         (mostlyclean): Adjust.
 329         (clean, distclean): Don't mention bootstrap stuff.
 330         * configure: Regenerate.
 331         * ada/config-lang.in, cp/config-lang.in, forttran/config-lang.in,
 332         java/config-lang.in, objc/config-lang.in, objcp/config-lang.in,
 333         treelang/config-lang.in (stagestuff): Remove.
 334         * doc/sourcebuild.texi (stage1, stage2, stage3, stage4,
 335         stageprofile, stagefeedback, stagestuff): Remove mention.
 336
 337 2007-01-11  Nick Clifton  <nickc@redhat.com>
 338
 339         * config/mcore/predicates.md (mcore_general_movesrc_operand):
 340         Accept CONSTs.
 341         (mcore_general_movdst_operand): Do not accept CONST_INTs.
 342         (mcore_arith_K_S_operand): Run the test for the S constraint not
 343         the test for the M constraint.
 344         (mcore_addsub_operand): Do not accept integer values that are
 345         larger than 32 bits.
 346         * config/mcore/mcore.md: Remove unused constraints from split.
 347         (andsi3): Use HOST_WIDE_INT instead of int to hold an INTVAL.
 348         (addsi3): Likewise.
 349         (allocate_stack): Likewise.
 350         * config/mcore/mcore.c (mcore_print_operand): Restrict output of P
 351         operands to 32 bits.
 352         (mcore_const_costs): Use HOST_WIDE_INT instead of int to hold an
 353         INTVAL.
 354         (mcore_and_cost, mcore_modify_comparison, const_ok_for_mcore,
 355         mcore_const_ok_for_inline, mcore_const_trick_uses_not,
 356         try_constant_tricks, mcore_num_ones, mcore_num_zeros,
 357         mcore_output_bclri, mcore_output_andn, output_inline_const,
 358         mcore_output_move, mcore_output_movedouble): Likewise.
 359         (mcore_output_cmov): Use CONST_OK_FOR_M and CONST_OK_FOR_N.
 360         (output_inline_const): Likewise.
 361         (output_inline_const): Fix format strings used in sprintf
 362         statements.
 363         * config/mcore/mcore-protos.h: Update prototypes for changed
 364         functions in mcore.c.
 365         * config/mcore/mcore.h (CONST_OK_FOR_I): Cast values to
 366         HOST_WIDE_INT and not int.
 367         (CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M,
 368         CONST_OK_FOR_N): Likewise.
 369         (LEGITIMATE_CONSTANT_P): Also check CONSTANT_P.
 370         (GO_IF_LEGITIMATE_INDEX): Use HOST_WIDE_INT instead of int to hold
 371         an INTVAL.
 372
 373 2007-01-10  Jan Hubicka  <jh@suse.cz>
 374
 375         * tree-vrp.c (remove_range_assertions): Release defs.
 376         * tree-ssa-loop-ivopts.c (rmeove_statement): Likewise.
 377         * tree-ssa-dom.c (remove_stmt_or_phi): Likewise.
 378
 379 2007-01-10  Paul Brook  <paul@codesourcery.com>
 380
 381         * config/arm/arm.c (arm_rtx_costs_1): Handle mutiply-subtract.
 382         * config/arm/arm.md (mulsi3subsi): New insn.
 383
 384 2007-01-10  Zdenek Dvorak <dvorakz@suse.cz>
 385
 386         * tree-ssa-loop-manip.c (tree_unroll_loop): Make it a wrapper over ...
 387         (tree_transform_and_unroll_loop): New.
 388         * tree-flow.h (transform_callback, tree_transform_and_unroll_loop):
 389         Declare.
 390
 391 2007-01-10  Robert Kennedy <jimbob@google.com>
 392
 393         * fold-const.c (fold_comparison): Fold comparisons like (x *
 394         1000 < 0) to (x < 0).
 395
 396 2007-01-10  Ian Lance Taylor  <iant@google.com>
 397
 398         * tree-pretty-print.c (dump_generic_node): Print parentheses when
 399         operands have the same priority.
 400
 401 2007-01-10  Tom Tromey  <tromey@redhat.com>
 402
 403         * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
 404         (fold_binary): Likewise.
 405         * langhooks.c (lhd_can_use_bit_fields_p): Removed.
 406         * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
 407         (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
 408         (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
 409         * langhooks.h (struct lang_hooks): Removed field
 410         'can_use_bit_fields_p'.
 411
 412 2007-01-10  Ralf Corsépius <ralf.corsepius@rtems.org>
 413
 414         * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.
 415
 416 2007-01-10  Razya Ladelsky  <razya@il.ibm.com>
 417
 418         * function.c (get_last_funcdef_no): New function.
 419         * function.h (get_last_funcdef_no): Declare.
 420         * tree-inline.c (initialize_cfun): Add initialization.
 421         (tree_function_versioning): Cleanup.
 422
 423 2007-01-10  Jan Hubicka  <jh@suse.cz>
 424
 425         * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
 426         PHIs.
 427
 428 2007-01-10  Sa Liu  <saliu@de.ibm.com>
 429             Ben Elliston  <bje@au.ibm.com>
 430
 431         * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
 432         for SAVE_NONLOCAL and Pmode for any other save level.
 433         * spu-protos.h (spu_restore_stack_block): Declare.
 434         * spu.md (save_stack_block): Remove.
 435         (restore_stack_block): Call spu_restore_stack_block.
 436         * spu.c (spu_restore_stack_block): New function.
 437         (spu_expand_epilogue): Remove old comment.
 438
 439 2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>
 440
 441         PR tree-optimization/30322
 442         * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
 443         (cand_value_at): Return the value as aff_tree.
 444         (may_eliminate_iv): Convert the bound from aff_tree to tree.
 445         * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
 446         aff_combination_mult): New functions.
 447         (aff_combination_add): Use aff_combination_add_cst.
 448         (aff_combination_convert): Allow conversions to a wider type.
 449         (tree_to_aff_combination): Handle BIT_NOT_EXPR.
 450         * tree-affine.h (aff_combination_mult): Declare.
 451
 452 2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>
 453
 454         * doc/tm.texi: Update documentation to reflect reality of exec
 455         and start file search behaviours. Update copyright year.
 456         * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
 457         header file directories.
 458
 459 2007-01-09  Uros Bizjak  <ubizjak@gmail.com>
 460
 461         * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
 462         (*cosxf2): Rename to cosxf2_i387.
 463
 464         (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
 465         using X87MODEF12 mode macro. Rename patterns to
 466         *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
 467         for SSE math.
 468         (*cosdf2, *cossf2): Ditto.
 469         (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
 470         to match extended input operands.
 471
 472         (sincos<mode>3): New expander.
 473
 474         (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
 475         insn patterns and corresponding splitters.
 476
 477 2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>
 478
 479         * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
 480         (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.
 481
 482 2007-01-09  Nicolas Pitre  <nico@cam.org>
 483
 484         PR target/30173
 485         * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.
 486
 487 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
 488
 489         * target.h (struct gcc_target): New field library_rtti_comdat.
 490         * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
 491         (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
 492         * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
 493         * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.
 494
 495 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
 496
 497         * doc/invoke.texi (Optimize Options): Correct description of -O0.
 498
 499 2007-01-08  Richard Guenther  <rguenther@suse.de>
 500
 501         * tree.h (force_fit_type_double): Export.
 502         (force_fit_type): Remove.
 503         * fold-const.c (force_fit_type_double): New function.
 504         (force_fit_type): Remove.
 505         (int_const_binop): Use it.
 506         (fold_convert_const_int_from_int): Likewise.
 507         (fold_convert_const_int_from_real): Likewise.
 508         (fold_div_compare): Likewise.
 509         (fold_sign_changed_comparison): Likewise.
 510         (fold_unary): Likewise.
 511         (fold_negate_const): Likewise.
 512         (fold_abs_const): Likewise.
 513         (fold_not_const): Likewise.
 514         * c-common.c (shorten_compare): Use force_fit_type_double.
 515         * convert.c (convert_to_pointer): Likewise.
 516
 517 2007-01-08  Richard Guenther  <rguenther@suse.de>
 518
 519         * tree.h (build_int_cst_wide_type): Export.
 520         * tree.c (build_int_cst_wide_type): New function.
 521         (build_int_cst_wide): Fix comment.
 522         * builtins.c (fold_builtin_object_size): Use build_int_cst
 523         to build -1 or 0 of the correct type.  Use fit_double_type
 524         to check for overflow.
 525         * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
 526         to build the mask.
 527         (decode_field_reference): Likewise.
 528         (all_ones_mask_p): Likewise.
 529         (native_interpret_int): Use build_int_cst_wide_type.
 530         (fold_binary): Use build_int_cst_type to build an all-ones
 531         value.
 532         * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.
 533
 534 2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>
 535
 536         * config/pa/t-pa64 (libgcc_stub.a): Use $(T).
 537
 538 2007-01-09  Ben Elliston  <bje@au.ibm.com>
 539
 540         * genautomata.c (STATS_OPTION): New option.
 541         (stats_flag): New flag.
 542         (gen_automata_option): Handle it.
 543         (initiate_automaton_gen): Ditto.
 544         (write_automata): Output statistics only if stats_flag is
 545         set. Likewise, output time statistics only if time_flag is set.
 546         * doc/md.texi (Processor pipeline description): Document new flag.
 547
 548 2007-01-08  Richard Guenther  <rguenther@suse.de>
 549
 550         * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
 551         * tree.c (build_int_cst_type): Likewise.
 552         (size_in_bytes): Don't call force_fit_type on the result.
 553         (int_fits_type_p): Use fit_double_type.
 554         * fold-const.c (fit_double_type): New function.
 555         (force_fit_type): Use it.
 556         * tree.h (fit_double_type): Export.
 557
 558 2007-01-08  Jan Hubicka  <jh@suse.cz>
 559
 560         * tree-vectorizer.c (gate_increase_alignment): Fix return type.
 561         * ipa.c (function_and_variable_visibility): Fix return type.
 562
 563 2007-01-08  Richard Guenther  <rguenther@suse.de>
 564
 565         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
 566         of offset to build the index.
 567         * tree-pretty-print.c (dump_generic_node): Don't build negated
 568         const just for printing.
 569         * c-pretty-print.c (pp_c_integer_constant): Likewise.
 570         * builtins.c (fold_builtin_int_roundingfn): Check if result
 571         fits the type by using force_fit_type and comparing the result.
 572         * predict.c (predict_loops): Use compare_tree_int for comparison.
 573         * tree.c (build_int_cst): Fall back to integer_type_node for
 574         NULL_TREE type.
 575         (build_int_cst_wide): Assert type is non-null.
 576
 577 2007-01-08  Roberto Costa  <roberto.costa@st.com>
 578
 579         * tree-vrp.c (extract_range_from_cond_expr): New.
 580         (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
 581         * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
 582         as expressions.
 583         (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
 584         * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
 585         tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
 586         used as expressions.
 587         * tree-object-size.c (cond_expr_object_size): New.
 588         (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.
 589
 590 2007-01-08  Jan Hubicka  <jh@suse.cz>
 591
 592         * tree-ssa-forwprop.c (forward_propagate_into_cond,
 593         tree_ssa_forward_propagate_single_use_va): Release defs of propagated
 594         statement.
 595
 596 2007-01-08  Richard Guenther  <rguenther@suse.de>
 597
 598         PR tree-optimization/23603
 599         * tree-vrp.c (set_value_range_to_truthvalue): New function.
 600         (extract_range_from_binary): Fall back to truthvalue instead of
 601         varying for TRUTH_*_EXPR.
 602         (extract_range_from_comparison): Fall back to truthvalue instead of
 603         varying.
 604         (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
 605         if all visited PHI values were constant.
 606
 607 2007-01-08  Jan Hubicka  <jh@suse.cz>
 608
 609         * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
 610         (cgraph_analyze_function): break out from ...
 611         (cgraph_finalize_compilation_unit): ... here.
 612         (cgraph_expand_function): Remove forgoten commented out line.
 613         (cgraph_optimize): Analyze functions.
 614
 615 2007-01-08  Jan Hubicka  <jh@suse.cz>
 616
 617         * tree-pas.h (TODO_remove_function): New flag.
 618         (TODO_update*): Renumber.
 619         (pass_ipa_increase_alignment,
 620         pass_ipa_function_and_variable_visibility): New passes.
 621         * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
 622         (cgraph_function_and_variable_visibility): Move to ipa.c
 623         (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
 624         cgraph_increase_alignment.
 625         * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
 626         (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
 627         calling tree-inline.
 628         (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
 629         (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
 630         * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
 631         (gate_increase_alignment): New function.
 632         (pass_ipa_increase_alignment): New pass.
 633         * ipa.c: Inline tree-pass.h and timevar.h
 634         (function_and_variable_visibility): Move here from cgraphunit.c
 635         * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
 636         * passes.c (init_optimization_passes): Add the two new passes.
 637         (execute_todo): Handle cgraph_remove_functions.
 638
 639 2007-01-08  Nick Clifton  <nickc@redhat.com>
 640
 641         * config/frv/predicates.md (reg_or_0_operand): Accept
 642         CONST_DOUBLEs.
 643
 644 2007-01-08  Ralf Corsépius <ralf.corsepius@rtems.org>
 645
 646         * config/bfin/rtems.h, config/bfin/t-rtems: New.
 647         * config.gcc: Add bfin*-rtems*.
 648
 649 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
 650
 651         * c.opt: Add -flax-vector-conversions.
 652         * c-typeck.c (convert_for_assignment): Pass flag to
 653         vector_types_convertible_p to allow emission of note.
 654         (digest_init): Likewise.
 655         * c-opts.c: Handle -flax-vector-conversions.
 656         * c-common.c (flag_lax_vector_conversions): New.
 657         (vector_types_convertible_p): Unless -flax-vector conversions
 658         has been passed, disallow conversions between vectors with
 659         differing numbers of subparts and/or element types.  If such
 660         a conversion is disallowed, possibly emit a note on the first
 661         occasion only to inform the user of -flax-vector-conversions.
 662         The new last argument specifies this.
 663         * c-common.h (flag_lax_vector_conversions): New.
 664         (vector_types_convertible_p): Add extra argument.
 665         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
 666         char_type_node for V*QI type vectors.
 667         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
 668         Update to satisfy new typechecking rules.
 669         * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
 670         C and C++ variants.
 671         * doc/invoke.texi (C Dialect Options): Document
 672         -flax-vector-conversions.
 673
 674 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
 675
 676         PR tree-optimization/29877
 677         * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
 678         a register variable on the RHS to not be replaceable.
 679
 680 2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
 681         * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
 682         * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
 683         const_simm15, const_pow2, const_npow2): Added.
 684         * config/score/misc.md (insv, extv, extzv, movmemsi,
 685         move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
 686         * config/score/score.c (score_address_cost, score_select_cc_mode):
 687         Added.
 688         Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
 689         Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
 690         Update score_print_operand.
 691         * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
 692         Adjust register allocate order and update some macro define.
 693         * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
 694         mdx_block_move_straight, mdx_block_move_loop_head,
 695         mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
 696         mdx_block_move): Added.
 697         (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
 698         mdp_limm): Updated and fix some bug and typo.
 699         * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
 700         (movsf, movdf, doloop_end): Added.
 701
 702 2007-01-08  Kazu Hirata  <kazu@codesourcery.com>
 703
 704         * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
 705         config/arm/thumb2.md: Fix comment typos.
 706         * doc/extend.texi: Fix a typo.
 707
 708 2007-01-07  Eric Christopher  <echristo@apple.com>
 709
 710         * configure.ac: Check for __stack_chk_fail for darwin.
 711         * configure: Regenerate.
 712
 713 2007-01-07  Richard Guenther  <rguenther@suse.de>
 714
 715         * tree-vrp.c (extract_range_from_assert): CSE calls to
 716         compare_values where possible.
 717         (extract_range_from_unary_expr): Likewise.
 718
 719 2007-01-07  Anatoly Sokolov <aesok@post.ru>
 720
 721         * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
 722         * config/avr/avr.c (call_insn_operand): Delete function.
 723         * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
 724         instead of register number. Use predicates.
 725         * config/avr/predicates.md (const0_operand, reg_or_0_operand,
 726         call_insn_operand): Add.
 727
 728 2007-01-06  Jan Hubicka  <jh@suse.cz>
 729
 730         * tree-pass.h (pass_build_cgraph_edges): Declare.
 731         * cgraphunit.c (record_refernece): Move to cgraphbuild.c
 732         (visited_nodes): Remove.
 733         (cgraph_create_edges): Move to cgraphbuild.c; rename to
 734         build_cgrpah_edges; make visited_nodes local.
 735         (cgraph_process_new_functions): DO not call initialize_inline_failed.
 736         (record_references_in_initializer): Move to cgraphbuild.c
 737         (initialize_inline_failed, rebuild_cgraph_edges,
 738         pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
 739         (verify_cgraph_node): Make visited_nodes local.
 740         (cgraph_analyze_function): Do not call cgraph_create_edges and
 741         initialize_inline_failed.
 742         (cgraph_expand_function): Do not call cgraph_lower_function;
 743         assert that function is already lowered.
 744         * Makefile.in (cgraphbuild.o): New.
 745         * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
 746         at the end of lowering passes.
 747
 748 2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>
 749
 750         * ifcvt.c (cond_move_convert_if_block): New function, code
 751         factored out from...
 752         (cond_move_process_if_block): ...here.  Call the new function
 753         on the THEN and ELSE blocks.
 754         (merge_if_block): Do not copy global_live_at_end, merge_blocks
 755         already takes care of this.
 756
 757 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 758
 759         PR c/19978
 760         * tree.h (TREE_OVERFLOW_P): New.
 761         * c-typeck.c (parser_build_unary_op): Warn only if result
 762         overflowed and operands did not.
 763         (parser_build_binary_op): Likewise.
 764         (convert_for_assignment): Remove redundant overflow_warning.
 765         * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.
 766
 767 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 768
 769         * c-typeck.c (store_init_value): Split over two lines to follow
 770         the GNU coding style.
 771
 772 2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>
 773
 774         * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
 775         __GXX_EXPERIMENTAL_CXX0X__.
 776         * doc/cpp.texi: Same.
 777
 778 2007-01-05  Richard Guenther  <rguenther@suse.de>
 779
 780         PR middle-end/27826
 781         * tree.c (get_narrower): Do not construct COMPONENT_REFs
 782         with mismatched types.  Instead explicitly build a
 783         conversion NOP_EXPR.
 784
 785 2007-01-05  Ian Lance Taylor  <iant@google.com>
 786
 787         * c-common.c (decl_with_nonnull_addr_p): New function.
 788         (c_common_truthvalue_conversion): Call it.
 789         * c-typeck.c (build_binary_op): Likewise.
 790         * c-common.h (decl_with_nonnull_addr_p): Declare.
 791
 792 2007-01-05  Jakub Jelinek  <jakub@redhat.com>
 793
 794         PR c/30360
 795         * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
 796         denom against 0.0.
 797
 798 2007-01-05  Joel Brobecker  <brobecker@adacore.com>
 799
 800         * doc/install.texi (Final install): Document the fact that
 801         the GNAT runtime should not be stripped.
 802
 803 2007-01-04  Jan Hubicka  <jh@suse.cz>
 804
 805         * tree-inline.c (fold_marked_statements): Update operand caches
 806         and EH after folding
 807
 808 2007-01-04  Ian Lance Taylor  <iant@google.com>
 809
 810         * c-common.c (check_function_nonnull): Whitespace fix.
 811
 812 2007-01-04  Jan Hubicka  <jh@suse.cz>
 813
 814         * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
 815         comitted older version of patch.
 816         (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
 817         function, celanup cfg and collect garbage.
 818
 819 2007-01-04  Mike Stump  <mrs@apple.com>
 820
 821         * Makefile.in (mostlyclean): Don't remove libgcc anymore.
 822         (clean): Likewise.
 823
 824 2007-01-04  Eric Christopher  <echristo@apple.com>
 825
 826         * libgcc2.c (__bswapsi2): Use SItype.
 827         (__bswapdi2): Use DItype.
 828         * libgcc2.h: Update for above.
 829
 830 2007-01-04  Paul Brook  <paul@codesourcery.com>
 831
 832         * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
 833         mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
 834         mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
 835         umulsidi3, umulsidi3adddi, smulsi3_highpart,
 836         umulsi3_highpart): Make conditional on !arm_arch6.
 837         (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
 838         mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
 839         mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
 840         umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
 841         umulsi3_highpart_v6): New insns.
 842
 843 2007-01-04  Roger Sayle  <roger@eyesopen.com>
 844
 845         * fold-const.c (fold_convert): When casting an expression to void,
 846         fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
 847         have a type.  Instead of attempting to build a NOP_EXPR, return
 848         these "special" trees directly.
 849
 850 2007-01-04  Joseph Myers  <joseph@codesourcery.com>
 851
 852         * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
 853         MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
 854         rs6000_cost->fp not 0 as adjustment for outer NEG.
 855
 856 2007-01-04  Jan Hubicka  <jh@suse.cz>
 857
 858         * cgraph.c (cgraph_release_function_body): New function.
 859         (cgraph_remove_node): Use it.
 860         * cgraph.h (cgraph_release_function_body): Declare.
 861         * cgraphunit.c (cgraph_expand_function): Use it.
 862         * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
 863         * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
 864         is initialized and while compilation of other function is running.
 865         * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
 866         statement CFG annotations from here to ...
 867         * tree-cfg.c (delete_tree_cfg_annotations): ... here.
 868
 869 2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>
 870
 871         * cfgloop.h (enum li_flags): Make the constants powers of two.
 872
 873 2007-01-04  Jan Hubicka  <jh@suse.cz>
 874
 875         * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
 876         set.
 877         (fold_marked_statements): New function.
 878         (optimize_inline_calls, tree_function_versioning): Fold new statements.
 879         * tree-inline.h (copy_body_data): Add statements_to_fold.
 880
 881 2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>
 882
 883         * config.gcc: Mention libgcc/config.host.
 884         * Makefile.in: Update comments mentioning libgcc.
 885         (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
 886         (all.cross, start.encap, rest.encap, rest.cross): Update
 887         dependencies for libgcc move.
 888         (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
 889         (clean-target, clean-target-libgcc): Delete.
 890         (srcdirify, GCC_EXTRA_PARTS): New macros.
 891         (libgcc-support, libgcc.mvars): New rules.
 892         (distclean): Remove mention of mklibgcc.
 893         (install): Don't reference INSTALL_LIBGCC.
 894         (install-common): Don't reference EXTRA_PARTS.
 895         (install-libgcc, install-multilib): Delete rules.
 896         * mklibgcc.in: Delete file.
 897         * doc/configfiles.texi: Don't mention mklibgcc.
 898
 899         * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
 900         * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
 901         * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
 902         * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
 903         (mklibgcc, ldblspecs): Likewise.
 904
 905         * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
 906         (posixpre.def): Use $(T).
 907         (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
 908         (SHLIB_SRC, SHLIB_INSTALL): Delete.
 909         (SHLIB_LINK): Make dummy.
 910         * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.
 911
 912         * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.
 913
 914         * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
 915         * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
 916         config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
 917         config/rs6000/t-newas, config/sparc/t-elf: Likewise.
 918
 919         * configure.ac (all_outputs): Remove mklibgcc.
 920         * configure: Regenerated.
 921
 922 2007-01-03  Josh Conner  <jconner@apple.com>
 923
 924         PR middle-end/29683
 925         * calls.c (compute_argument_addresses): Set stack and stack_slot
 926         for partial args, too.
 927         (store_one_arg): Use locate.size.constant for the size when
 928         generating a save_area.
 929
 930 2007-01-03  Robert Kennedy <jimbob@google.com>
 931
 932         * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
 933         whose definitions are deleted due to basic block merging.
 934
 935 2007-01-03  Paul Brook  <paul@codesourcery.com>
 936
 937         PR target/16634
 938         * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
 939         functions.
 940         (use_return_insn): Return 0 for Thumb interrupt functions.
 941         (print_multi_reg): Add rfe argument for IRQ returns.
 942         (arm_output_epilogue): Pop interrupt return address directly into PC.
 943         (arm_expand_prologue): Only adjust IRQ return address in Arm mode.
 944
 945 2007-01-03  Paul Brook  <paul@codesourcery.com>
 946
 947         Merge from sourcerygxx-4_1.
 948         * config/arm/thumb2.md: New file.
 949         * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
 950         Thumb-2.
 951         * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
 952         * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
 953         (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
 954         * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
 955         tables.
 956         (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
 957         * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
 958         comptibility.
 959         * config/arm/ieee754-sf.S: Ditto.
 960         * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
 961         (thumb1_base_register_rtx_p): ... to this.
 962         (thumb_index_register_rtx_p): Rename...
 963         (thumb1_index_register_rtx_p): ... to this.
 964         (thumb_output_function_prologue): Rename...
 965         (thumb1_output_function_prologue): ... to this.
 966         (thumb_legitimate_address_p): Rename...
 967         (thumb1_legitimate_address_p): ... to this.
 968         (thumb_rtx_costs): Rename...
 969         (thumb1_rtx_costs): ... to this.
 970         (thumb_compute_save_reg_mask): Rename...
 971         (thumb1_compute_save_reg_mask): ... to this.
 972         (thumb_final_prescan_insn): Rename...
 973         (thumb1_final_prescan_insn): ... to this.
 974         (thumb_expand_epilogue): Rename...
 975         (thumb1_expand_epilogue): ... to this.
 976         (arm_unwind_emit_stm): Rename...
 977         (arm_unwind_emit_sequence): ... to this.
 978         (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
 979         thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
 980         thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
 981         arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
 982         thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
 983         thumb2_output_casesi): New functions.
 984         (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
 985         (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
 986         FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
 987         THUMB2_WORK_REGS): Define.
 988         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
 989         arm_condexec_mask, arm_condexec_masklen)): New variables.
 990         (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
 991         (arm_override_options): Check new CPU capabilities.
 992         Set new architecture flag variables.
 993         (arm_isr_value): Handle v7m interrupt functions.
 994         (user_return_insn): Return 0 for v7m interrupt functions.  Handle
 995         Thumb-2.
 996         (const_ok_for_arm): Handle Thumb-2 constants.
 997         (arm_gen_constant): Ditto.  Use movw when available.
 998         (arm_function_ok_for_sibcall): Return false for v7m interrupt
 999         functions.
1000         (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
1001         (thumb_find_work_register, arm_load_pic_register,
1002         legitimize_tls_address, arm_address_cost, load_multiple_sequence,
1003         emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
1004         print_multi_reg, output_mov_long_double_fpa_from_arm,
1005         output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
1006         output_mov_double_fpa_from_arm, output_move_double,
1007         arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
1008         output_return_instruction, arm_output_function_prologue,
1009         arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
1010         arm_output_mi_thunk, thumb_set_return_address): Ditto.
1011         (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
1012         (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
1013         (arithmetic_instr, shift_op): Use arm_shift_nmem.
1014         (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
1015         '!' and 'L'.
1016         (arm_final_prescan_insn): Use extract_constrain_insn_cached.
1017         (thumb_expand_prologue): Use thumb_set_frame_pointer.
1018         (arm_file_start): Output directive for unified syntax.
1019         (arm_unwind_emit_set): Handle stack alignment instruction.
1020         * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
1021         Add v6t2, v7, v7a, v7r and v7m.
1022         (RETLDM): Add Thumb-2 code.
1023         (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
1024         * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
1025         (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
1026         TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
1027         THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
1028         ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
1029         THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
1030         CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
1031         ADJUST_INSN_LENGTH): Define.
1032         (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
1033         STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
1034         BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
1035         PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
1036         SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
1037         TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
1038         HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
1039         HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
1040         REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
1041         REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
1042         LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
1043         GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
1044         ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
1045         FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
1046         PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
1047         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
1048         * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
1049         cortex-m3.
1050         * config/arm/arm-tune.md: Regenerate.
1051         * config/arm/arm-protos.h: Update prototypes.
1052         * config/arm/vfp.md: Enable patterns for Thumb-2.
1053         (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
1054         (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
1055         (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
1056         thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
1057         * config/arm/libunwind.S: Add Thumb-2 code.
1058         * config/arm/constraints.md: Update include Thumb-2.
1059         * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
1060         * config/arm/ieee754-df.S: Ditto.
1061         * config/arm/bpabi.S: Ditto.
1062         * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
1063         * config/arm/predicates.md (low_register_operand,
1064         low_reg_or_int_operand, thumb_16bit_operator): New.
1065         (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
1066         (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
1067         * config/arm/t-arm-elf: Add armv7 multilib.
1068         * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
1069         Include thumb2.md.
1070         (UNSPEC_STACK_ALIGN, ce_count): New.
1071         (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
1072         arm_zero_extendsidi2, arm_zero_extendqidi2): New
1073         insns/expanders.
1074         * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
1075         (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
1076         thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
1077         * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
1078         (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
1079         thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
1080         insns.
1081         * doc/extend.texi: Document ARMv7-M interrupt functions.
1082         * doc/invoke.texi: Document Thumb-2 new cores+architectures.
1083
1084 2007-01-03  Jakub Jelinek  <jakub@redhat.com>
1085
1086         * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
1087         (struct _Unwind_Context): Rename args_size to flags, remove
1088         signal_frame field, add a new args_size field and version field.
1089         (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
1090         _Unwind_IsExtendedContext): New inline functions.
1091         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
1092         Assume by_value array is only present if _Unwind_IsExtendedContext.
1093         (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
1094         _Unwind_IsSignalFrame.
1095         (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
1096         (uw_update_context_1): Use _Unwind_SetSignalFrame.
1097         (uw_init_context_1): Initialize context->flags to
1098         EXTENDED_CONTEXT_BIT.
1099         * config/rs6000/linux-unwind.h (frob_update_context): Use
1100         _Unwind_SetSignalFrame.
1101
1102 2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
1103
1104         PR middle-end/30353
1105         * gimplify.c (gimplify_modify_expr_complex_part): Move below
1106         tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
1107         the value.
1108
1109 2007-01-03  Kazu Hirata  <kazu@codesourcery.com>
1110
1111         * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
1112         REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
1113         RET, AT_SP): Remove.
1114         * config/i386/i386.md (*sse_prologue_save_insn): Use return
1115         instead of RET.
1116
1117         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1118         * cfgbuild.c (find_basic_blocks): Likewise.
1119         * cfgrtl.c (rtl_create_basic_block): Likewise.
1120         * function.c (temp_slots_at_level): Likewise.
1121         * reg-stack.c (stack_regs_mentioned): Likewise.
1122         * regclass.c (allocate_reg_info): Likewise.
1123         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1124         set_bb_for_stmt, move_block_to_fn): Likewise.
1125         * tree-complex.c (tree_lower_complex): Likewise.
1126         * vec.h (VEC_safe_grow_cleared): New.
1127
1128         * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.
1129
1130 2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>
1131
1132         * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
1133         * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
1134         to loop_version.
1135         * cfgloopmanip.c (scale_loop_frequencies): Export.
1136         (loopify): Scale the frequencies by prescribed coefficients.
1137         (set_zero_probability): New function.
1138         (duplicate_loop_to_header_edge): Improve updating of frequencies.
1139         (lv_adjust_loop_entry_edge, loop_version): Set probabilities
1140         and frequencies according to arguments.
1141         * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
1142         correctly.
1143         * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
1144         * modulo-sched.c (sms_schedule): Set probabilities for entering
1145         versioned loop correctly.
1146         * tree-vect-transform.c (vect_transform_loop): Ditto.
1147         * cfgloop.h (loopify, loop_version): Declaration changed.
1148         (scale_loop_frequencies): Declared.
1149
1150 2007-01-02  Jan Hubicka  <jh@suse.cz>
1151
1152         * cgraph.c: Include tree-flow.h
1153         (cgraph_add_new-function): Handle IPA_SSA mode; execute
1154         early_local_passes.
1155         * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
1156         * tree-pass.h (pass_all_early_optimizations): Declare.
1157         * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
1158         early_local_passes.
1159         (cgraph_analyze_function): Do early_local_passes.
1160         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
1161         Do not add referenced vars.
1162         * tree-optimize.c (gate_all_optimizations): Do not execute when not in
1163         SSA form.
1164         (gate_all_early_local_passes): New gate.
1165         (pass_early_local_passes): Use new gate.
1166         (execute_early_local_optimizations): New functions.
1167         (gate_all_early_optimizations): New gate.
1168         (pass_all_early_optimizations): New pass.
1169         (execute_free_datastructures): Free SSA only when initialized.
1170         (gate_init_datastructures): Init only when optimizing.
1171         (tree_lowering_passes): Do early local passes when called late.
1172         * tree-profile.c (do_tree_profiling): Don't profile functions added
1173         late.
1174         (do_early_tree_profiling, pass_early_tree_profile): Kill.
1175         * tree-cfg.c (update_modified_stmts): Do not update when operands are
1176         not active.
1177         * passes.c (init_optimizations_passes): Reorder so we go into SSA
1178         during early_local_passes.
1179         * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
1180
1181
1182 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
1183
1184         * Makefile.in: Update copyright year.
1185
1186 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
1187
1188         * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
1189         in $(lang_checks) and check-consistency targets.
1190
1191 2007-01-02  Jan Hubicka  <jh@suse.cz>
1192
1193         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
1194         Do not add referenced vars.
1195         * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
1196         are not active.
1197         * passes.c (init_optimization_passes): Put mudflap_2 after
1198         free_datastructures.
1199
1200 2007-01-02  Jan Hubicka  <jh@suse.cz>
1201
1202         * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
1203         Set NOTHROW flag on call statements proved to be nothrow.
1204         Update statement of local calls so new pure/const functions are
1205         updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
1206         goto receivers.
1207         (tree_rest_of_compilation): Register hooks and initialize bitmap
1208         early. Do not set after_inlining flag.
1209
1210 2007-01-02  Steve Ellcey  <sje@cup.hp.com>
1211
1212         * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
1213         HOST_BITS_PER_LONGLONG
1214
1215 2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>
1216
1217         PR c/19977
1218         * c-typeck.c (store_init_value): Don't emit pedantic overflow
1219         warning for non-static initializers.
1220
1221 2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>
1222
1223         * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
1224         m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
1225         rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
1226         Always use set_unique_reg_note to add REG_EQUAL notes.
1227
1228 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1229
1230         Revert:
1231         2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1232
1233         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1234         * cfgbuild.c (find_basic_blocks): Likewise.
1235         * cfgrtl.c (rtl_create_basic_block): Likewise.
1236         * function.c (temp_slots_at_level): Likewise.
1237         * reg-stack.c (stack_regs_mentioned): Likewise.
1238         * regclass.c (allocate_reg_info): Likewise.
1239         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1240         set_bb_for_stmt, move_block_to_fn): Likewise.
1241         * tree-complex.c (tree_lower_complex): Likewise.
1242         * vec.h (VEC_safe_grow_cleared): New.
1243
1244 2007-01-02  Ian Lance Taylor  <iant@google.com>
1245
1246         * c-common.c (c_common_truthvalue_conversion): When warning about
1247         using an assignment as a truth value, set TREE_NO_WARNING.
1248
1249 2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1250
1251         PR middle-end/7651
1252         * c.opt (Wold-style-declaration): New.
1253         * doc/invoke.texi (C-only Warning Options): New.
1254         (Wold-style-declaration): Document it.
1255         (Wextra): Enabled by -Wextra.
1256         * c-opts.c (c_common_post_options): Enabled by -Wextra.
1257         * c-decl.c (declspecs_add_scspec): Replace -Wextra with
1258         -Wold-style-declaration.
1259
1260 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1261
1262         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1263         * cfgbuild.c (find_basic_blocks): Likewise.
1264         * cfgrtl.c (rtl_create_basic_block): Likewise.
1265         * function.c (temp_slots_at_level): Likewise.
1266         * reg-stack.c (stack_regs_mentioned): Likewise.
1267         * regclass.c (allocate_reg_info): Likewise.
1268         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1269         set_bb_for_stmt, move_block_to_fn): Likewise.
1270         * tree-complex.c (tree_lower_complex): Likewise.
1271         * vec.h (VEC_safe_grow_cleared): New.
1272
1273 2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>
1274
1275         * c-common.c(c_common_nodes_and_builtins): Since variants of
1276         void_type_node get built before it is given a name, we need to
1277         give those variants the name, too.
1278         (complete_array_type): We need to work with the canonical main
1279         type of the array, from which we will build the qualified version.
1280         * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
1281         * print-tree.c (print_node): Display canonical type information
1282         for each type.
1283         * stor-layout.c (layout_type): When we don't know the
1284         alignment of a type for which we're building an array, we end up
1285         guessing wrong, so make the type require structural equality.
1286         * tree.c (make_node_stat): When we build a new type, it is its
1287         own canonical type.
1288         (build_type_attribute_qual_variant): When building an attribute
1289         variant, its canonical type is the non-attribute variant. However,
1290         if the attributes are target-dependent and they differ, we need to
1291         use structural equality checks for this type.
1292         (build_qualified_type): A qualified type is not equivalent to its
1293         unqualified variant; set the canonical type appropriately.
1294         (build_distinct_type_copy): When building a distinct type from
1295         another type, the new type is its own canonical type.
1296         (build_variant_type_copy): When building a new type variant, we
1297         assume that it is equivalent to the original type.
1298         (build_pointer_type_for_mode): When building a pointer type, also
1299         build a canonical type pointer.
1300         (build_reference_type_for_mode): When building a reference type,
1301         also build a canonical type reference.
1302         (build_index_type): When we can't hash an index type (e.g.,
1303         because its maximum value is negative), the index type requires
1304         structural equality tests.
1305         (build_array_type): Build the canonical form of an array type.
1306         (build_function_type): Function types require structural equality,
1307         because they contain default arguments, attributes, etc.
1308         (build_method_type_directly): Ditto for method types.
1309         (build_offset_type): Build the canonical offset type.
1310         (build_complex_type): Build the canonical vector type.
1311         (make_vector_type): Build the canonical vector type.
1312         * tree.h (TYPE_CANONICAL): New.
1313         (TYPE_STRUCTURAL_EQUALITY_P): New.
1314         (SET_TYPE_STRUCTURAL_EQUALITY): New.
1315         (struct tree_type): Added "canonical" field.
1316         * params.h (VERIFY_CANONICAL_TYPES): New.
1317         * doc/c-tree.texi (TYPE_CANONICAL): Document.
1318         (TYPE_STRUCTURAL_EQUALITY_P): Document.
1319         (SET_TYPE_STRUCTURAL_EQUALITY): Document.
1320         * doc/invoke.texi (verify-canonical-types): Document --param
1321         parameter for verifying canonical types.
1322
1323 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1324
1325         * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
1326         powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
1327         powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
1328         powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
1329         tm_file.
1330         * config/rs6000/e500.h: New.
1331         * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
1332         TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
1333         Remove.
1334         * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
1335         TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
1336         TARGET_E500_DOUBLE): Remove.
1337         * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
1338         TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
1339         * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
1340         * config/rs6000/rs6000.c (rs6000_override_options): Use
1341         CHECK_E500_OPTIONS.
1342
1343 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1344
1345         * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
1346         TARGET_E500_DOUBLE), not TARGET_E500, for %y.
1347         (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
1348         rs6000_emit_cmove): Don't check TARGET_E500.
1349         * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
1350         sordered): Don't check TARGET_E500.
1351
1352 2007-01-01  Eric Christopher  <echristo@apple.com>
1353
1354         * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
1355         HARD_REGISTER_NUM_P.
1356
1357 2007-01-01  Roger Sayle  <roger@eyesopen.com>
1358
1359         * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
1360         "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
1361         has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
1362         eq/ne Y".
1363
1364 2007-01-01  Mike Stump  <mrs@apple.com>
1365
1366         * configure.ac: Remove support for building with Apple's gcc-3.1.
1367
1368 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1369
1370         PR middle-end/30311
1371         * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
1372         REG is a hard register.  Do not modify REG before calling
1373         subreg_nregs.
1374         * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
1375         multiple of the size of YMODE for certain lowpart cases.
1376
1377 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1378
1379         PR middle-end/30253
1380         * gimplify (voidify_wrapper_expr): Update for
1381         GIMPLE_MODIFY_STMT.
1382
1383 2007-01-01  Andreas Schwab  <schwab@suse.de>
1384
1385         PR target/29166
1386         * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
1387         save of BR0 in extra_spill_size instead of spill_size.
1388         (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
1389         area.
1390         (ia64_expand_epilogue): Restore BR0 from its new location.
1391
1392 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1393
1394         * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
1395         Use a temporary variable if the left hand side is not a gimple
1396         register.
1397
1398 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1399
1400         * gimplify.c (gimplify_return_expr): Make the temporary variable
1401         for the return expression, a gimple register variable.
1402
1403 2007-01-01  Jan Hubicka  <jh@suse.cz>
1404
1405         * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
1406         INSN_LIST.
1407
1408 2007-01-01  Mike Stump  <mrs@apple.com>
1409
1410         * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
1411         .literal16.
1412         * config/darwin.c (machopic_select_rtx_section): Use
1413         HAVE_GAS_LITERAL16.
1414         (darwin_mergeable_constant_section): Likewise.
1415         * configure: Regenerate.
1416         * config.in: Regenerate.
1417
1418 2007-01-01  Jan Hubicka  <jh@suse.cz>
1419             Andrew Pinski  <pinskia@gmail.com>
1420
1421         * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
1422         before starting IPA passes.