gcc/ChangeLog

   1 2008-01-27  Joseph Myers  <joseph@codesourcery.com>
   2
   3         * config.gcc (strongarm*-*, ep9312*-*, xscale*-*, parisc*-*,
   4         m680[012]0-*, *-*-beos*, *-*-kaos*, *-*-linux*aout*,
   5         *-*-linux*libc1*, *-*-solaris2.[0-6], *-*-solaris2.[0-6].*,
   6         *-*-sysv*, *-*-windiss*, alpha*-*-unicosmk*, cris-*-aout,
   7         hppa1.1-*-pro*, hppa1.1-*-osf*, hppa1.1-*-bsd*,
   8         i[34567]86-sequent-ptx4*, i[34567]86-*-nto-qnx*,
   9         i[34567]86-*-sco3.2v5*, i[34567]86-*-uwin*, powerpc-*-chorusos*,
  10         vax-*-bsd*, vax-*-ultrix*): Mark obsolete.
  11
  12 2008-01-27  Bernhard Fischer  <aldot@gcc.gnu.org>
  13
  14         * basic-block.h (condjump_equiv_p): Fix comment.
  15
  16 2008-01-27  Bernhard Fischer  <aldot@gcc.gnu.org>
  17
  18         * tree-pretty-print.c (print_generic_decl, print_generic_stmt,
  19         print_generic_stmt_indented): Fix comment.
  20
  21 2008-01-27  Bernhard Fischer  <aldot@gcc.gnu.org>
  22
  23         * configure.ac (__stack_chk_fail): Add detecion for availability
  24         of SSP in uClibc by checking if __UCLIBC_HAS_SSP__ is defined.
  25         * configure: Regenerate.
  26
  27 2008-01-26  Maxim Kuvyrkov  <maxim@codesourcery.com>
  28
  29         PR middle-end/34688
  30         * final.c (output_addr_const): Handle TRUNCATE.
  31
  32 2008-01-26  Zdenek Dvorak  <ook@ucw.cz>
  33
  34         PR target/34711
  35         * tree-ssa-loop-ivopts.c (comp_cost): New type.
  36         (zero_cost, infinite_cost): New constants.
  37         (struct cost_pair): Change type of cost to comp_cost.
  38         (struct iv_ca): Change type of cand_use_cost and cost to comp_cost.
  39         (new_cost, add_costs, sub_costs, compare_costs, infinite_cost_p):
  40         New functions.
  41         (set_use_iv_cost, force_expr_to_var_cost, force_var_cost,
  42         split_address_cost, ptr_difference_cost, difference_cost,
  43         get_computation_cost_at, get_computation_cost,
  44         determine_use_iv_cost_generic, determine_use_iv_cost_address,
  45         determine_use_iv_cost_condition, determine_use_iv_costs,
  46         cheaper_cost_pair, iv_ca_recount_cost, iv_ca_set_no_cp,
  47         iv_ca_set_cp, iv_ca_cost, iv_ca_new, iv_ca_dump, iv_ca_extend,
  48         iv_ca_narrow, iv_ca_prune, try_improve_iv_set, find_optimal_iv_set):
  49         Change type of cost to comp_cost.
  50         (determine_iv_cost): Increase cost of non-original ivs, instead
  51         of decreasing the cost of original ones.
  52         (get_address_cost): Indicate the complexity of the addressing mode
  53         in comp_cost.
  54         (try_add_cand_for): Prefer using ivs not specific to some object.
  55         * tree-flow.h (force_expr_to_var_cost): Declaration removed.
  56
  57 2008-01-26  Peter Bergner  <bergner@vnet.ibm.com>
  58             Janis Johnson  <janis187@us.ibm.com>
  59
  60         PR target/34814
  61         * doc/tm.texi (TARGET_EXPAND_TO_RTL_HOOK): Document.
  62         (TARGET_INSTANTIATE_DECLS): Likewise.
  63         * target.h (expand_to_rtl_hook): New target hook.
  64         (instantiate_decls): Likewise.
  65         * function.c (instantiate_decl): Make non-static.  Rename to...
  66         (instantiate_decl_rtl): ... this.
  67         (instantiate_expr): Use instantiate_decl_rtl.
  68         (instantiate_decls_1): Likewise.
  69         (instantiate_decls): Likewise.
  70         (instantiate_virtual_regs: Call new instantiate_decls taget hook.
  71         * function.h (instantiate_decl_rtl): Add prototype.
  72         * cfgexpand.c (target.h): New include.
  73         (tree_expand_cfg): Call new expand_to_rtl_hook target hook.
  74         * target-def.h (TARGET_EXPAND_TO_RTL_HOOK): New define.
  75         (TARGET_INSTANTIATE_DECLS): Likewise.
  76         (TARGET_INITIALIZER): New target hooks added.
  77         * config/rs6000/rs6000-protos.h (rs6000_secondary_memory_needed_rtx):
  78         New prototype.
  79         * config/rs6000/rs6000.c (tree-flow.h): New include.
  80         (machine_function): Add sdmode_stack_slot field.
  81         (rs6000_alloc_sdmode_stack_slot): New function.
  82         (rs6000_instantiate_decls): Likewise.
  83         (rs6000_secondary_memory_needed_rtx): Likewise.
  84         (rs6000_check_sdmode): Likewise.
  85         (TARGET_EXPAND_TO_RTL_HOOK): Target macro defined.
  86         (TARGET_INSTANTIATE_DECLS): Likewise.
  87         (rs6000_hard_regno_mode_ok): Allow SDmode.
  88         (num_insns_constant): Likewise.  Handle _Decimal32 constants.
  89         (rs6000_emit_move): Handle SDmode.
  90         (function_arg_advance): Likewise.
  91         (function_arg): Likewise.
  92         (rs6000_gimplify_va_arg): Likewise.  Add special handling of
  93         SDmode var args for 32-bit compiles.
  94         (rs6000_secondary_reload_class): Handle SDmode.
  95         (rs6000_output_function_epilogue): Likewise.
  96         (rs6000_function_value): Simplify if statement.
  97         (rs6000_libcall_value): Likewise.
  98         * config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Handle SDmode.
  99         (SECONDARY_MEMORY_NEEDED_RTX): Add define.
 100         * config/rs6000/dfp.md (movsd): New define_expand and splitter.
 101         (movsd_hardfloat): New define_insn.
 102         (movsd_softfloat): Likewise.
 103         (movsd_store): Likewise.
 104         (movsd_load): Likewise.
 105         (extendsddd2): Likewise.
 106         (extendsdtd2): Likewise.
 107         (truncddsd2): Likewise.
 108         (movdd_hardfloat64): Fixup comment.
 109         (UNSPEC_MOVSD_LOAD): New constant.
 110         (UNSPEC_MOVSD_STORE): Likewise.
 111
 112 2008-01-26  Jakub Jelinek  <jakub@redhat.com>
 113
 114         PR c++/34965
 115         * c-pretty-print.c (pp_c_exclusive_or_expression): Handle
 116         TRUTH_XOR_EXPR.
 117         (pp_c_logical_and_expression): Handle TRUTH_AND_EXPR.
 118         (pp_c_logical_or_expression): Handle TRUTH_OR_EXPR.
 119         (pp_c_expression): Handle TRUTH_AND_EXPR, TRUTH_OR_EXPR
 120         and TRUTH_XOR_EXPR.
 121
 122 2008-01-26  David Edelsohn  <edelsohn@gnu.org>
 123
 124         PR target/34794
 125         * config.gcc: Separate AIX 5.3 from AIX 6.1.
 126         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
 127         __LONGDOUBLE128 too.
 128         * config/rs6000/aix61.h: New file.
 129
 130 2008-01-26  Richard Sandiford  <rsandifo@nildram.co.uk>
 131
 132         PR rtl-optimization/34959
 133         * optabs.c (expand_unop): In libcall notes, give ffs, clz, ctz,
 134         popcount and parity rtxes the same mode as their operand.
 135         Truncate or extend the result to the return value's mode
 136         if necessary.
 137
 138 2008-01-26  Richard Sandiford  <rsandifo@nildram.co.uk>
 139
 140         PR target/34981
 141         * config/mips/mips-protos.h (mips_expand_call): Return an rtx.
 142         * config/mips/mips.h (FIRST_PSEUDO_REGISTER): Rename FAKE_CALL_REGNO
 143         to GOT_VERSION_REGNUM.
 144         (CALL_REALLY_USED_REGISTERS): Set the GOT_VERSION_REGNUM entry to 0.
 145         (EPILOGUE_USES): Include GOT_VERSION_REGNUM if TARGET_USE_GOT.
 146         * config/mips/mips.c (mips_emit_call_insn): New function.
 147         (mips_call_tls_get_addr): Call mips_expand_call directly.
 148         (mips16_copy_fpr_return_value): Use mips_emit_call_insn rather than
 149         emit_call_insn.
 150         (mips16_build_call_stub): Likewise.  Return the call insn or null.
 151         (mips_expand_call): Update the call to mips16_build_call_stub
 152         accordingly and a remove redundant condition.  Assert that MIPS16
 153         stubs do not use lazy binding.  Use mips_emit_call_insn and return
 154         the call insn.
 155         (mips_extra_live_on_entry): Include GOT_VERSION_REGNUM if
 156         TARGET_USE_GOT.
 157         (mips_hard_regno_mode_ok_p): Allow SImode for GOT_VERSION_REGNUM.
 158         (mips_avoid_hazard): Remove hazard_set handling.
 159         * config/mips/mips.md (UNSPEC_EH_RECEIVER): Rename to...
 160         (UNSPEC_RESTORE_GP): ...this.
 161         (UNSPEC_SET_GOT_VERSION, UNSPEC_UPDATE_GOT_VERSION): New constants.
 162         (FAKE_CALL_REGNO): Rename to...
 163         (GOT_VERSION_REGNUM): ...this.
 164         (type): Add "ghost" value.  Add an associated insn reservation.
 165         (hazard_set): Remove.
 166         (exception_receiver): Rename to...
 167         (restore_gp): ...this and update the unspec identifier accordingly.
 168         (exception_receiver, nonlocal_got_receiver): New expanders.
 169         (load_call<mode>): Use GOT_VERSION_REGNUM.  Don't set
 170         FAKE_CALL_REGNO.  Remove hazard_set attribute.
 171         (set_got_version, update_got_version): New patterns.
 172
 173 2008-01-26  Danny Smith  <dannysmith@users.sourceforge.net>
 174
 175         PR target/34970
 176         * config/i386/cygming.h (ASM_OUTPUT_LABELREF): Define.
 177
 178 2008-01-25  Joseph Myers  <joseph@codesourcery.com>
 179
 180         PR other/31955
 181         * doc/install.texi2html: Generate gcc-vers.texi.
 182
 183 2008-01-25  DJ Delorie  <dj@redhat.com>
 184
 185         * config/m32c/m32c.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
 186
 187 2008-01-25  Joseph Myers  <joseph@codesourcery.com>
 188
 189         * config/c4x: Remove directory.
 190         * config.gcc (crx-*, mt-*): Mark obsolete.
 191         (c4x-*, tic4x-*, c4x-*-rtems*, tic4x-*-rtems*, c4x-*, tic4x-*,
 192         h8300-*-rtemscoff*, ns32k-*-netbsdelf*, ns32k-*-netbsd*,
 193         sh-*-rtemscoff*): Remove cases.
 194         * defaults.h (C4X_FLOAT_FORMAT): Remove.
 195         * real.c (encode_c4x_single, decode_c4x_single,
 196         encode_c4x_extended, decode_c4x_extended, c4x_single_format,
 197         c4x_extended_format): Remove.
 198         * real.h (c4x_single_format, c4x_extended_format): Remove.
 199         * doc/extend.texi (interrupt, naked): Remove mention of attributes
 200         on C4x.
 201         (Pragmas): Remove comment about c4x pragmas.
 202         * doc/install.texi (c4x): Remove target-specific instructions.
 203         * doc/invoke.texi (TMS320C3x/C4x Options): Remove.
 204         * doc/md.texi (Machine Constraints): Remove C4x documentation.
 205         * doc/tm.texi (MEMBER_TYPE_FORCES_BLK, c_register_pragma): Do not
 206         refer to C4x source files as examples.
 207         (C4X_FLOAT_FORMAT): Remove documentation.
 208
 209 2008-01-25  Bernd Schmidt  <bernd.schmidt@analog.com>
 210
 211         * config/bfin/bfin.c (override_options): Reorder tests so that
 212         flag_pic gets enabled for -msep-data.
 213
 214 2008-01-25  Richard Guenther  <rguenther@suse.de>
 215
 216         PR middle-end/32244
 217         * expr.c (expand_expr_real_1): Reduce result of LSHIFT_EXPR
 218         to its bitfield precision if required.
 219
 220 2008-01-25  Jakub Jelinek  <jakub@redhat.com>
 221
 222         PR middle-end/33880
 223         * tree-nested.c (walk_omp_for): New function.
 224         (convert_nonlocal_reference, convert_local_reference): Call
 225         walk_omp_for on OMP_FOR.
 226         (convert_call_expr): Call walk_body on OMP_FOR's
 227         OMP_FOR_PRE_INIT_BODY.
 228
 229 2008-01-25  Richard Guenther  <rguenther@suse.de>
 230
 231         PR tree-optimization/34966
 232         * tree-ssa-math-opts.c (execute_cse_sincos_1): For all but
 233         default defs and PHI_NODEs we have to insert after the
 234         defining statement.
 235
 236 2008-01-24  Nick Clifton  <nickc@redhat.com>
 237
 238         * config/stormy16/stormy16-lib2.c (MIN_UNITS_PER_WORD):
 239         Provide a default definition.
 240         (LIBGCC2_UNITS_PER_WORD): Likewise.
 241
 242         * config/stormy16/stormy16.c: Include df.h for the prototype
 243         for df_regs_ever_live_p.
 244         (xstormy16_expand_builtin_va_start): Convert the stack offset
 245         into a component_ref and then use POINTER_PLUS_EXPR to add it
 246         to the incoming_virtual_args_rtx.
 247         (xstormy16_gimplify_va_arg_expr): Rename to
 248         xstormy16_gimplify_va_arg_expr.
 249         Use POINTER_PLUS_EXPR when performing pointer arithmetic.
 250         (TARGET_GIMPLIFY_VA_ARG_EXPR): Use renamed
 251         xstormy16_gimplify_va_arg_expr.
 252         Fix up some formatting issues.
 253
 254         * config/stormy16/stormy16.c: (xstormy16_carry_plus_operand):
 255         Move to predicates.md.
 256         (xs_hi_general_operand): Likewise.
 257         (xs_hi_nonmemory_operand): Likewise.
 258         * config/stormy16/predicates.md:
 259         (xstormy16_carry_plus_operand): New predicate.
 260         (xs_hi_general_operand): New predicate.
 261         (xs_hi_nonmemory_operand): New predicate.
 262         * config/stormy16/stormy16-protos.h:
 263         (xstormy16_carry_plus_operand): Delete prototype.
 264         (xs_hi_general_operand): Likewise.
 265         (xs_hi_nonmemory_operand): Likewise.
 266
 267         * config/storm16/stormy16.md (addhi3): Remove earlyclobber
 268         modifiers as they are no longer needed and they can trigger
 269         reload spill failures.
 270
 271         * config/storm16/stormy16.md (ineqbranchsi): Replace match_dup
 272         with a match_operand in order to help reload.
 273
 274         * config/storm16/stormy16.md (movhi_internal): Replace 'r'
 275         constraint with 'e' for the 8th alternative as this version of
 276         the mov.w instruction only accepts the lower 8 registers.
 277
 278 2008-01-25  Uros Bizjak  <ubizjak@gmail.com>
 279
 280         PR target/34856
 281         * simplifx-rtx.c (simplify_const_binary_operation) [VEC_CONCAT]:
 282         Consider only CONST_INT, CONST_DOUBLE and CONST_FIXED as constant
 283         vector elements.
 284
 285 2008-01-25  Jakub Jelinek  <jakub@redhat.com>
 286
 287         PR middle-end/33333
 288         * gimplify.c (gimplify_omp_for): Gimplify OMP_FOR_PRE_BODY.
 289
 290 2008-01-25  Golovanevsky Olga  <olga@il.ibm.com>
 291
 292         * ipa-struct-reorg.c (remove_str_allocs_in_func, remove_str_allocs):
 293         New functions.
 294         (remove_structure): Update allocations list before removing structure.
 295
 296 2008-01-25  Golovanevsky Olga  <olga@il.ibm.com>
 297
 298         * ipa-struct-reorg.c (is_safe_cond_expr,
 299         create_new_stmts_for_cond_expr): Use integer_zerop function,
 300         that recognize not only zero-pointer, but zero-integer too.
 301
 302 2008-01-25  Ben Elliston  <bje@au.ibm.com>
 303
 304         PR other/22232
 305         * fixproto: Escape "." in sed expression that strips leading "./".
 306
 307 2008-01-24  H.J. Lu  <hongjiu.lu@intel.com>
 308
 309         PR driver/34904
 310         * gcc.c (SWITCH_OK): Removed.
 311         (SWITCH_LIVE): Changed to bit.
 312         (SWITCH_FALSE): Likewise.
 313         (SWITCH_IGNORE): Likewise.
 314         (switchstr): Change live_cond to unsigned int.
 315         (process_command): Replace SWITCH_OK with 0.
 316         (do_self_spec): Likewise.
 317         (set_collect_gcc_options): Check the SWITCH_IGNORE bit.
 318         (give_switch): Likewise.
 319         (used_arg): Likewise.
 320         (do_spec_1): Set the SWITCH_IGNORE bit.
 321         (check_live_switch): Check both SWITCH_LIVE and SWITCH_FALSE
 322         bits.  Set the SWITCH_LIVE bit.
 323
 324 2008-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>
 325
 326         * config/s390/s390.h (MOVE_RATIO): Define new target macro.
 327
 328 2008-01-24  Richard Sandiford  <rsandifo@nildram.co.uk>
 329
 330         PR tree-optimization/34472
 331         * ipa-struct-reorg.c (safe_cond_expr_check): Change the DATA
 332         parameter to a "bool *" and set *DATA to false if there is
 333         an unsafe access.  Do not delete the structure here.
 334         (check_cond_exprs): Delete it here instead.
 335         (check_cond_exprs, exclude_cold_structs): Do not increase
 336         I when removing a structure.
 337
 338 2008-01-24  Uros Bizjak  <ubizjak@gmail.com>
 339
 340         PR target/34856
 341         * config/i386/i386.c (ix86_expand_vector_init): Consider only
 342         CONST_INT, CONST_DOUBLE and CONST_FIXED as constant vector elements.
 343
 344 2008-01-24  Jakub Jakub Jelinek  <jakub@redhat.com>
 345
 346         PR middle-end/34934
 347         * tree-stdarg.c (reachable_at_most_once): Use VEC vector instead of
 348         a fixed vector for stack.
 349
 350 2008-01-24  Ben Elliston  <bje@au.ibm.com>
 351
 352         PR c++/25701
 353         * doc/gcc.texi (Software development): Add a direntry for g++.
 354
 355 2008-01-23  Hans-Peter Nilsson  <hp@axis.com>
 356
 357         * config/cris/cris.h (CC1PLUS_SPEC, OPTIMIZATION_OPTIONS): Drop
 358         stale and straggling -fforce-addr comments above.
 359
 360         * config/cris/cris.h (CRIS_SUBTARGET_VERSION, TARGET_VERSION): Don't
 361         define.
 362         * config/cris/linux.h (CRIS_SUBTARGET_VERSION): Don't define.
 363         * config/cris/aout.h (CRIS_SUBTARGET_VERSION): Don't define.
 364
 365 2008-01-23  Michael Matz  <matz@suse.de>
 366
 367         PR debug/34895
 368         * dwarf2out.c (force_type_die): Use modified_type_die instead of
 369         gen_type_die.
 370
 371 2008-01-23  Andreas Krebbel  <krebbel1@de.ibm.com>
 372
 373         * ipa-struct-reorg.c (create_new_malloc): Use pointer type as
 374         malloc result type.
 375
 376 2008-01-23 Anatoly Sokolov <aesok@post.ru>
 377
 378         * config/avr/avr.c (avr_current_arch): New variable.
 379         (avr_arch_types): Add 'avr31' and 'avr51' entries.
 380         (avr_arch): Add 'ARCH_AVR31' and 'ARCH_AVR51'.
 381         (avr_mcu_types): Add 'avr31' and 'avr51' architectures.
 382         (avr_override_options): Init 'avr_current_arch'.
 383         (base_arch_s): Move from here...
 384         * config/avr/avr.h (base_arch_s): ... here. Add new members
 385         'have_elpm', 'have_elpmx', 'have_eijmp_eicall', 'reserved'. Rename
 386         'mega' to 'have_jmp_call'.
 387         (TARGET_CPU_CPP_BUILTINS): Define "__AVR_HAVE_JMP_CALL__",
 388         "__AVR_HAVE_RAMPZ__",   "__AVR_HAVE_ELPM__" and  "__AVR_HAVE_ELPMX__"
 389         macros.
 390         (LINK_SPEC, CRT_BINUTILS_SPECS, ASM_SPEC): Add 'avr31' and 'avr51'
 391         architectures.
 392         * config/avr/t-avr (MULTILIB_OPTIONS, MULTILIB_DIRNAMES,
 393         MULTILIB_MATCHES): (Ditto.).
 394
 395 2008-01-23  Richard Guenther  <rguenther@suse.de>
 396
 397         PR middle-end/31529
 398         * cgraphunit.c (cgraph_reset_node): Always mark the node
 399         not reachable if it is not queued already.
 400
 401 2008-01-23  Bernd Schmidt  <bernd.schmidt@analog.com>
 402
 403         * config/bfin/bfin-protos.h (WA_RETS, ENABLE_WA_RETS): New macros.
 404         * config/bfin/bfin.c (bfin_cpus): Add WA_RETS everywhere.
 405         (cputype_selected): New static variable.
 406         (bfin_handle_option): Set it if -mcpu is used.
 407         (override_option): Select default set of workarounds if no cpu type
 408         selected on the command line.
 409         (workaround_rts_anomaly): Only run if ENABLE_WA_RETS.
 410
 411         From  Michael Frysinger  <michael.frysinger@analog.com>
 412         * config/bfin/bfin-protos.h (enum bfin_cpu_type): Add
 413         BFIN_CPU_BF547, BFIN_CPU_BF523, BFIN_CPU_BF524, and BFIN_CPU_BF526.
 414
 415         * config/bfin/elf.h (LIB_SPEC): Use proper linker script
 416         for bf547, bf523, bf524, and bf526.
 417         * config/bfin/bfin.c (bfin_cpus[]): Add bf547,  bf523, bf524, and
 418         bf526.
 419         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
 420         __ADSPBF523__ for bf523, __ADSPBF524__ for bf524,
 421         __ADSPBF526__ for bf526, __ADSPBF52x__ for all three, as well as
 422         __ADSPBF547__ and __ADSPBF54x__ for bf547.
 423         * doc/invoke.texi (Blackfin Options): Document that
 424         -mcpu now accept bf547, bf523, bf524, and bf526.
 425
 426 2008-01-22  Eric Botcazou  <ebotcazou@adacore.com>
 427
 428         PR rtl-optimization/34628
 429         * combine.c (try_combine): Stop and undo after the first combination
 430         if an autoincrement side-effect on the first insn has effectively
 431         been lost.
 432
 433 2008-01-22  David Edelsohn  <edelsohn@gnu.org>
 434
 435         PR target/34529
 436         * config/rs6000/rs6000.c (rs6000_legitimate_offset_address_p):
 437         Offset addresses are not valid for Altivec or paired float modes.
 438
 439 2008-01-22  Jakub Jelinek  <jakub@redhat.com>
 440
 441         PR c++/34607
 442         * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for
 443         if DECL_INITIAL (decl) is error_mark_node.
 444
 445         PR c++/34914
 446         * c-common.c (handle_vector_size_attribute): Only allow
 447         integral, scalar float and fixed point types.  Handle OFFSET_TYPE
 448         the same way as pointer, array etc. types.
 449         * tree.c (reconstruct_complex_type): Handle OFFSET_TYPE.
 450
 451         PR c++/34917
 452         * tree.c (build_type_attribute_qual_variant): Call
 453         build_qualified_type if attributes are equal, but quals are not.
 454
 455 2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 456
 457         PR 32102
 458         * doc/invoke.texi (-Wall): -Wall enables -Wstrict-overflow=1.
 459         * flags.h (warn_strict_aliasing): Remove.
 460         (warn_strict_overflow): Remove.
 461         * opts.c (warn_strict_aliasing): Remove.
 462         (warn_strict_overflow): Remove.
 463         * c-opts.c (c_common_handle_option): -Wall only sets
 464         -Wstrict-aliasing or -Wstrict-overflow if they are uninitialized.
 465         (c_common_post_options): Give default values to -Wstrict-aliasing
 466         and -Wstrict-overflow if they are uninitialized.
 467         * common.opt (Wstrict-aliasing): Specify Var and Init.
 468         (Wstrict-overflow): Likewise.
 469
 470 2008-01-22  Kenneth Zadeck <zadeck@naturalbridge.com>
 471
 472         PR rtl-optimization/26854
 473         PR rtl-optimization/34400
 474         PR rtl-optimization/34884
 475         * ddg.c (create_ddg_dep_from_intra_loop_link): Use
 476         DF_RD->gen.
 477         * df.h (df_changeable_flags.DF_RD_NO_TRIM): Deleted
 478         (df_rd_bb_info.expanded_lr_out): Deleted
 479         * loop_invariant.c (find_defs): Deleted DF_RD_NO_TRIM flag.
 480         * loop_iv.c (iv_analysis_loop_init): Ditto.  * df-problems.c
 481         (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
 482         df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
 483         Removed code to allocate, initialize or free expanded_lr_out.
 484         (df_rd_bb_local_compute_process_def): Restructured to make more
 485         understandable.
 486         (df_rd_confluence_n): Removed code to no apply invalidate_by_call
 487         sets if the sets are being trimmed.
 488
 489 2008-01-22  H.J. Lu  <hongjiu.lu@intel.com>
 490
 491         PR bootstrap/32287
 492         * configure.ac (ld_vers): Support GNU linker version xx.xx.*
 493         (as_vers): Likewise.
 494         * configure: Regenerated.
 495
 496 2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 497
 498         PR middle-end/33092
 499         * tree-pass.h (pass_build_alias): New pass.
 500         * tree-ssa-alias.c (gate_build_alias): New.
 501         (pass_build_alias): New.
 502         * passes.c (init_optimization_passes): Add pass_build_alias after
 503         pass_create_structure_vars.
 504
 505 2008-01-22  Wolfgang Gellerich  <gellerich@de.ibm.com>
 506
 507         * config/s390/s390.h (S390_TDC_POSITIVE_NORMALIZED_NUMBER):
 508         Renamed to S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER.
 509         (S390_TDC_NEGATIVE_NORMALIZED_NUMBER): Renamed to
 510         S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER.
 511         (S390_TDC_POSITIVE_DENORMALIZED_NUMBER): Renamed to
 512         S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER.
 513         (S390_TDC_NEGATIVE_DENORMALIZED_NUMBER): Renamed to
 514         S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER.
 515         (S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER): New constant.
 516         (S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER): New constant.
 517         (S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER): New constant.
 518         (S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER): New constant.
 519         * config/s390/s390.md (FP_ALL): New mode iterator.
 520         (_d): New mode attribute.
 521         ("*signbit<mode>2>"): Changed mode of first operand.
 522         ("isinf<mode>2"): Changed mode of first operand.
 523         ("*TDC_insn"): Adaptation for DFP modes.
 524
 525 2008-01-22  Ben Elliston  <bje@au.ibm.com>
 526
 527         * tree.c (check_qualified_type): Improve function description.
 528
 529 2008-01-21  Jason Merrill  <jason@redhat.com>
 530
 531         PR c++/34196
 532         * tree.h (TRY_CATCH_IS_CLEANUP): New macro.
 533         * tree-eh.c (honor_protect_cleanup_actions): Strip TRY_CATCH_EXPR
 534         if it is set.
 535
 536 2008-01-21  DJ Delorie  <dj@redhat.com>
 537
 538         * doc/tm.texi (HARD_REGNO_NREGS): Note that this macro must not
 539         return zero.
 540
 541 2008-01-21  Richard Guenther  <rguenther@suse.de>
 542
 543         PR middle-end/34856
 544         * tree-cfg.c (verify_expr): Allow all invariant expressions
 545         instead of just constant class ones as reference argument.
 546         * tree-ssa-loop-im.c (for_each_index): Handle CONSTRUCTOR
 547         like any other constant.
 548         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.
 549
 550 2008-01-21  H.J. Lu  <hongjiu.lu@intel.com>
 551
 552         * regmove.c (fixup_match_1): Update call crossed frequencies.
 553
 554 2008-01-21  Richard Guenther  <rguenther@suse.de>
 555
 556         PR c/34885
 557         * tree-inline.c (setup_one_parameter): Deal with mismatched
 558         types using a VIEW_CONVERT_EXPR.
 559
 560 2008-01-21  Alon Dayan  <alond@il.ibm.com>
 561             Olga Golovanevsky  <olga@il.ibm.com>
 562
 563         PR tree-optimization/34701
 564         * ipa-struct-reorg.c (gen_size): Fix the malloc parameter calculation
 565         when the structure size is not a power of 2.
 566
 567 2008-01-20  Kenneth Zadeck <zadeck@naturalbridge.com>
 568
 569         * doc/install.texi: Add doc for --enable-checking=df.
 570
 571 2008-01-20  Kaz Kojima  <kkojima@gcc.gnu.org>
 572
 573         PR rtl-optimization/34808
 574         * emit-rtl.c (try_split): Handle REG_RETVAL notes.
 575
 576 2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
 577
 578         * global.c (find_reg): Only compute EH_RETURN_DATA_REGNO once per
 579         input.
 580
 581 2008-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
 582
 583         PR rtl-optimization/26854
 584         PR rtl-optimization/34400
 585         * ddg.c (create_ddg_dep_from_intra_loop_link): Do not use
 586         DF_RD->gen.
 587         * df.h (df_changeable_flags.DF_RD_NO_TRIM): New.
 588         (df_rd_bb_info.expanded_lr_out): New.
 589         * loop_invariant.c (find_defs): Added DF_RD_NO_TRIM flag.
 590         * loop_iv.c (iv_analysis_loop_init): Ditto.
 591         * df-problems.c (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
 592         df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
 593         Added code to allocate, initialize or free expanded_lr_out.
 594         (df_rd_bb_local_compute_process_def): Restructured to make
 595         more understandable.
 596         (df_rd_confluence_n): Add code to do nothing with fake edges and
 597         code to no apply invalidate_by_call sets if the sets are being trimmed.
 598         (df_lr_local_finalize): Renamed to df_lr_finalize.
 599         (df_live_local_finalize): Renamed to df_live_finalize.
 600
 601 2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
 602
 603         PR target/34831
 604         * config/mips/mips.md (div<mode>3): Use <recip_condition> when
 605         deciding whether to use reciprocal instructions.
 606
 607 2008-01-19  Uros Bizjak  <ubizjak@gmail.com>
 608
 609         * dwarf2out.c (dwarf2out_switch_text_section): Do not call
 610         dwarf2out_note_section_used if cold_text_section is NULL.
 611
 612 2008-01-19  Jakub Jelinek  <jakub@redhat.com>
 613
 614         PR gcov-profile/34610
 615         * tree-cfg.c (make_edges): Mark both outgoing edges from
 616         OMP_CONTINUE and from OMP_FOR as EDGE_ABNORMAL.
 617         * omp-low.c (expand_omp_for): Clear EDGE_ABNORMAL bits
 618         from OMP_FOR and OMP_CONTINUE outgoing edges.
 619
 620         * tree-profile.c (tree_profiling): Return early if
 621         cfun->after_tree_profile != 0.  Set cfun->after_tree_profile
 622         at the end.
 623         * omp-low.c (expand_omp_parallel): Copy after_tree_profile
 624         from cfun to child_cfun.
 625         * function.h (struct function): Add after_tree_profile bit.
 626
 627 2008-01-19 Anatoly Sokolov <aesok@post.ru>
 628
 629         * config/avr/avr.S (_exit): Disable interrupt.
 630
 631 2008-01-18  Kenneth Zadeck  <zadeck@naturalbridge.com>
 632             Steven Bosscher  <stevenb.gcc@gmail.com>
 633
 634         PR rtl-optimization/26854
 635         PR rtl-optimization/34400
 636         * df-problems.c (df_live_scratch): New scratch bitmap.
 637         (df_live_alloc): Allocate df_live_scratch when doing df_live.
 638         (df_live_reset): Clear the proper bitmaps.
 639         (df_live_bb_local_compute): Only process the artificial defs once
 640         since the order is not important.
 641         (df_live_init): Init the df_live sets only with the variables
 642         found live by df_lr.
 643         (df_live_transfer_function): Use the df_lr sets to prune the
 644         df_live sets as they are being computed.
 645         (df_live_free): Free df_live_scratch.
 646
 647 2008-01-18  Ian Lance Taylor  <iant@google.com>
 648
 649         * common.opt: Add fmerge-debug-strings.
 650         * dwarf2out.c (DEBUG_STR_SECTION_FLAGS): Test
 651         flag_merge_debug_strings rather than flag_merge_constants.
 652         * doc/invoke.texi (Option Summary): Mention
 653         -fmerge-debug-strings.
 654         (Debugging Options): Document -fmerge-debug-strings.
 655
 656 2008-01-18  Ian Lance Taylor  <iant@google.com>
 657
 658         PR c++/33407
 659         * tree.h (DECL_IS_OPERATOR_NEW): Define.
 660         (struct tree_function_decl): Add new field operator_new_flag.
 661         * tree-inline.c (expand_call_inline): When inlining a call to
 662         operator new, force the return value to go into a variable, and
 663         set DECL_NO_TBAA_P on that variable.
 664         * c-decl.c (merge_decls): Merge DECL_IS_OPERATOR_NEW flag.
 665
 666 2008-01-18  Uros Bizjak  <ubizjak@gmail.com>
 667
 668         PR debug/34484
 669         * dwarf2out.c (dwarf2out_switch_text_section): Do not guard with
 670         DWARF2_DEBUGGING_INFO.
 671         (dwarf2out_note_section_used): Ditto.  Add prototype.
 672         (have_multiple_function_sections, text_section_used,
 673         cold_text_section_used, *cold_text_sections): Move declarations
 674         before their uses.
 675
 676 2007-01-17  Bob Wilson  <bob.wilson@acm.org>
 677
 678         * config/xtensa/unwind-dw2-xtensa.h (_Unwind_FrameState): Remove pc
 679         field and add signal_ra.
 680         * config/xtensa/unwind-dw2-xtensa.c (uw_frame_state_for): Remove
 681         assignments to frame state pc.  Move end of stack check after
 682         MD_FALLBACK_FRAME_STATE_FOR.
 683         (uw_update_context_1): Use frame state signal_regs if set, instead
 684         of checking signal_frame flag.
 685         (uw_update_context): Use frame state signal_ra if set.
 686         * config/xtensa/linux.h (MD_UNWIND_SUPPORT): Define.
 687         * config/xtensa/linux-unwind.h: New file.
 688
 689 2007-01-18  Bernhard Fischer  <aldot@gcc.gnu.org>
 690
 691         * modulo-sched.c (get_sched_window): Fix comment typo.
 692
 693 2008-01-17  Andrew MacLeod  <amacleod@redhat.com>
 694
 695         PR tree-optimization/34648
 696         * tree-ssa-sccvn.c (visit_use): Expressions which can throw are varying.
 697
 698 2008-01-17  Anatoly Sokolov <aesok@post.ru>
 699
 700         * config/avr/avr.h (LINK_SPEC): Support -mrelax and -mpmem-wrap-around.
 701         * config/avr/avr.opt (mrelax, mpmem-wrap-around): Add.
 702
 703 2008-01-17  Seongbae Park  <seongbae.park@gmail.com>
 704
 705         PR rtl-optimization/34400
 706         * df-core.c (df_worklist_dataflow_overeager,
 707         df_worklist_dataflow_doublequeue): New functions.
 708         (df_worklist_dataflow): Two different worklist solvers.
 709         * params.def (PARAM_DF_DOUBLE_QUEUE_THRESHOLD_FACTOR):
 710         New param.
 711
 712 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 713
 714         PR testsuite/34821
 715         * doc/invoke.texi: Document the dependence on pthread for fopenmp
 716         and ftree-parallelize-loops.
 717
 718 2008-01-17  Mircea Namolaru  <namolaru@il.ibm.com>
 719
 720         PR rtl-optimization/34826
 721         * loop-doloop (doloop_modify): Update the REG_BR_PROB note.
 722
 723 2008-01-17  Andreas Krebbel  <krebbel1@de.ibm.com>
 724
 725         * global.c (find_reg): Mark the eh regs as used if necessary.
 726         * ra-conflict.c (global_conflicts): Set no_eh_reg flag.
 727         * ra.h (struct allocno): no_eh_reg field added.  Changed
 728         no_stack_reg type to bitfield.
 729
 730 2008-01-17  Eric Botcazou  <ebotcazou@adacore.com>
 731
 732         * tree.c (substitute_in_expr): Add missing 'break'.
 733
 734 2008-01-17  Richard Guenther  <rguenther@suse.de>
 735
 736         PR tree-optimization/34825
 737         * tree-ssa-math-opts.c (is_division_by): Do not recognize
 738         x / x as division to handle.
 739
 740 2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 741
 742         * pa64-hpux.h (LIB_SPEC): Add "-lpthread" in shared links if "-mt" or
 743         "-pthread" is specified.
 744         * pa-hpux11.h (LIB_SPEC): Likewise.
 745
 746 2007-01-16  Janis Johnson  <janis187@us.ibm.com>
 747             Peter Bergner  <bergner@vnet.ibm.com>
 748
 749         PR rtl-optimization/33796
 750         * sparseset.c (sparseset_alloc): Use xcalloc rather than xmalloc.
 751
 752 2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 753
 754         PR libgfortran/34699
 755         * pa-hpux.h (LINK_SPEC): Only search /lib/pa1.1 and /usr/lib/pa1.1 on
 756         static links.
 757         * pa-hpux10.h (LINK_SPEC): Likewise.
 758         * pa-hpux11.h (LINK_SPEC): Don't search /lib/pa1.1 and /usr/lib/pa1.1.
 759
 760 2008-01-16  Richard Guenther  <rguenther@suse.de>
 761
 762         PR middle-end/32628
 763         * fold-const.c (fold_convert_const_int_from_int): Do not
 764         set overflow if that occured only because of a sign extension
 765         change when converting from/to a sizetype with the same
 766         precision and signedness.
 767
 768 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
 769
 770         PR debug/34249
 771         * dwarf2out.c (output_call_frame_info): Move output of FDE initial
 772         location address to the correct place.  Update copyright year.
 773
 774 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 775
 776         * lambda-code.c (lambda_transform_legal_p): Handle the case of
 777         no dependences in the dependence_relations vector.
 778
 779 2008-01-16  Jan Hubicka  <jh@suse.cz>
 780
 781         PR rtl-optimization/31396
 782         * regstat.c (regstat_bb_compute_ri): Compute FREQ_CALLS_CROSSED.
 783         * cfg.c (dump_reg_info): Print it.
 784         * regs.h (struct reg_info_t): add freq_calls_crossed.
 785         (REG_FREQ_CALLS_CROSSED): New macro.
 786         * global.c (global_alloc): Compute freq_calls_crossed for allocno.
 787         (find_reg): Update call of CALLER_SAVE_PROFITABLE.
 788         * regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
 789         regmove_optimize): Update call crossed frequencies.
 790         * local-alloc.c (struct qty): Add freq_calls_crossed.
 791         (alloc_qty): Copute freq_calls_crossed.
 792         (update_equiv_regs, combine_regs): Update REG_FREQ_CALLS_CROSSED.
 793         (find_free_reg): Update call of CALLER_SAVE_PROFITABLE.
 794         * ra.h (struct allocno): Add freq_calls_crossed.
 795
 796 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 797
 798         * gcc.c (LINK_COMMAND_SPEC): Add includes and link options for
 799         libgomp when compiling with ftree-parallelize-loops.
 800         (GOMP_SELF_SPECS): Add -pthread for ftree-parallelize-loops.
 801
 802 2008-01-16  Richard Guenther  <rguenther@suse.de>
 803
 804         PR tree-optimization/34769
 805         * tree-data-ref.c (initialize_matrix_A): Revert fix for PR34458.
 806         * tree.c (int_cst_value): Instead make this function more
 807         permissive in what it accepts as valid input.  Document this
 808         function always sign-extends the value.
 809
 810 2008-01-16  Jakub Jelinek  <jakub@redhat.com>
 811             Richard Guenther  <rguenther@suse.de>
 812
 813         PR c/34668
 814         * gimplify.c (fold_indirect_ref_rhs): Rename to ...
 815         (gimple_fold_indirect_ref_rhs): ... this.
 816         (gimple_fold_indirect_ref): New function with foldings
 817         that preserve lvalueness.
 818         (gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
 819         * tree-flow.h (gimple_fold_indirect_ref): Declare.
 820         * tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
 821         to fold an INDIRECT_REF, fall back to the old use of
 822         fold_indirect_ref_1.
 823
 824 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
 825
 826         * tree-data-ref.c (subscript_dependence_tester_1): Call
 827         free_conflict_function.
 828         (compute_self_dependence): Same.
 829
 830 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
 831
 832         PR debug/34249
 833         * debug.h (dwarf2out_switch_text_section): Move declaration from ...
 834         * dwarf2out.c (dwarf2out_switch_text_section): ... here.  Make
 835         function global.
 836         * final.c (final_scan_insn) [NOTE_INSN_SWITCH_TEXT_SECTIONS]:
 837         Depending on dwarf2out_do_frame, call dwarf2out_switch_text_section
 838         for DWARF2_UNWIND_INFO targets.
 839
 840 2008-01-16  Richard Guenther  <rguenther@suse.de>
 841
 842         PR c/34768
 843         * c-typeck.c (common_pointer_type): Do not merge inconsistent
 844         type qualifiers for function types.
 845
 846 2008-01-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 847
 848         * tree-parloops.c (gen_parallel_loop): Fix ommision of declaration for
 849         loop_iterator li from previous commit.
 850
 851 2008-01-15  Sebastian Pop  <sebastian.pop@amd.com>
 852
 853         * tree-parloops.c (gen_parallel_loop): Free loop bound estimations.
 854
 855 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
 856
 857         * tree-parloops.c (loop_has_blocks_with_irreducible_flag): New.
 858         (parallelize_loops): Don't parallelize irreducible components.
 859
 860 2008-01-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 861
 862         PR c++/24924
 863         * c-opts (c_common_post_options): Do not enable CPP
 864         flag_pedantic_errors by default.
 865
 866 2008-01-14  Eric Botcazou  <ebotcazou@adacore.com>
 867
 868         PR rtl-optimization/31944
 869         * cse.c (remove_pseudo_from_table): New function.
 870         (merge_equiv_classes): Use above function to remove pseudo-registers.
 871         (invalidate): Likewise.
 872
 873 2008-01-13  Richard Guenther  <rguenther@suse.de>
 874
 875         PR middle-end/34601
 876         * emit-rtl.c (set_reg_attrs_for_decl_rtl): Use DECL_MODE
 877         instead of TYPE_MODE to deal with calls from expand_one_error_var.
 878
 879 2008-01-13  Uros Bizjak  <ubizjak@gmail.com>
 880
 881         * gcse.c (cprop_jump): Call validate_unshare_change instead of
 882         validate_change to unshare the source of the PC set.
 883
 884 2008-01-12  Jan Hubicka  <jh@suse.cz>
 885
 886         PR middle-end/32135
 887         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Do not construct
 888         references above array bounds.  This might trigger bounds checks for
 889         pointers to arrays.
 890
 891 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
 892
 893         * tree-ssa-ter.c (free_temp_expr_table): Free num_in_part and
 894         new_replaceable_dependencies.
 895
 896 2008-01-12  Doug Kwan  <dougkwan@google.com>
 897
 898         * c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
 899         instead of OPT_Wreturn_type in warning due to ignored return type
 900         qualifiers.
 901         * c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
 902         options included in -Wextra.
 903         * c.opt: New option -Wignored_qualifiers.
 904         * doc/invoke.texi (Warning Options, -Wextra): Add new option
 905         -Wignore_qualifiers.
 906         (-Wignored-qualifiers): Document.
 907         (-Wreturn-type): Remove description of functionality now handled
 908         by -Wignored-qualifiers.
 909
 910 2008-01-12  Eric Botcazou  <ebotcazou@adacore.com>
 911
 912         PR ada/33788
 913         * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Fold an existing
 914         NOP_EXPR if it is between integral types with the same precision.
 915
 916 2008-01-12  Jan Hubicka  <jh@suse.cz>
 917
 918         PR other/28023
 919         * invoke.texi (max-inline-recursive-depth): Fix default value.
 920
 921 2008-01-12  Zdenek Dvorak  <ook@ucw.cz>
 922
 923         * tree-parloops.c (transform_to_exit_first_loop): Cast nit to the
 924         correct type.
 925
 926 2008-01-11  Bob Wilson  <bob.wilson@acm.org>
 927
 928         * config/xtensa/xtensa.c (override_options): Set flag_shlib.
 929
 930 2008-01-11  James E. Wilson  <wilson@specifix.com>
 931
 932         PR target/26015
 933         * config/vax/elf.h (FRAME_POINTER_CFA_OFFSET): Define.
 934
 935 2008-01-11  Anatoly Sokolov <aesok@post.ru>
 936
 937         * config/avr/avr.c (expand_prologue, expand_epilogue): Don't
 938         save/restore frame pointer register and don't use 'call-prologues'
 939         optimization in function with "OS_task" attribute.
 940
 941 2008-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 942
 943         PR middle-end/31309
 944         * expr.c (copy_blkmode_from_reg): Use a mode suited to the size
 945         when copying to memory.
 946
 947 2008-01-11  Steven Bosscher  <stevenb.gcc@gmail.com>
 948
 949         PR rtl-optimization/30905
 950         * cfgcleanup.c: Include dce.h
 951         (crossjumps_occured): New global variable.
 952         (try_crossjump_bb): Exit loop after finding a fallthru edge.
 953         If something changed, set crossjumps_occured to true.
 954         (try_optimize_cfg): Clear crossjumps_occured at the beginning.
 955         Don't add/remove fake edges to exit here...
 956         (cleanup_cfg): ...but do it here, when crossjumping.
 957         Run a fast DCE when successful crossjumps occured in the latest
 958         iteration of try_optimize_cfg.
 959
 960 2008-01-11  Richard Guenther  <rguenther@suse.de>
 961
 962         * tree-ssa-sccvn.c (struct vn_binary_op_s): Move hashcode near opcode.
 963         (struct vn_unary_op_s): Likewise.
 964         (vn_reference_insert): Free old reference on hash collision.
 965
 966 2008-01-10  Raksit Ashok  <raksit@google.com>
 967
 968         PR rtl-optimization/27971
 969         * combine.c (find_split_point): Split PLUS expressions which are
 970         inside a MEM rtx, and whose first operand is complex.
 971
 972 2008-01-10  DJ Delorie  <dj@redhat.com>
 973
 974         * config/m32c/m32c.c (m32c_hard_regno_nregs_1): Renamed from...
 975         (m32c_hard_regno_nregs): ...this, which is now a wrapper.
 976         (m32c_hard_regno_ok): Call the underlying function.
 977
 978 2008-01-10  Richard Guenther  <rguenther@suse.de>
 979
 980         PR middle-end/34683
 981         * tree-cfg.c (tree_merge_blocks): Do not go through the
 982         full-blown folding and stmt updating path if we just deal
 983         with virtual operands.
 984         * tree-ssa-copy.c (may_propagate_copy): Do not short-cut
 985         test for abnormal SSA_NAMEs.
 986
 987 2008-01-10  Andreas Krebbel  <krebbel1@de.ibm.com>
 988
 989         PR middle-end/34641
 990         * reload.c (push_reload): Add assertions.  All constants from
 991         reg_equiv_constant should have been used for replacing the respective
 992         pseudo earlier.
 993         (find_reloads_address): Invoke find_reloads_address_part for
 994         constant taken from the reg_equiv_constant array.
 995
 996 2008-01-10  Steven Bosscher  <stevenb.gcc@gmail.com>
 997
 998         * tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
 999         field (valnum) the first in the struct.  Replace bools with
1000         unit bit fields.
1001
1002 2008-01-10  Richard Guenther  <rguenther@suse.de>
1003
1004         PR tree-optimization/34651
1005         * tree-sra.c (sra_build_assignment): Sanitize.  Use the correct
1006         types and ordering for masking and converting.
1007
1008 2008-01-09  Sebastian Pop  <sebastian.pop@amd.com>
1009
1010         PR tree-optimization/34017
1011         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Generate code
1012         also for PHI_NODE expressions.
1013
1014 2008-01-09  Jan Hubicka  <jh@suse.cz>
1015
1016         PR tree-optimization/34708
1017         * tree-inline.c (estimate_num_insns_1): Compute cost of SWITCH_EXPR
1018         based on number of case labels.
1019         (init_inline_once): Remove switch_cost.
1020         * tree-inline.h (eni_weights_d): Remove switch_cost.
1021
1022 2008-01-09  Richard Guenther  <rguenther@suse.de>
1023         Andrew Pinski  <andrew_pinski@playstation.sony.com>
1024
1025         PR middle-end/30132
1026         * gimplify.c (gimplify_cond_expr): Do not create an addressable
1027         temporary if an rvalue is ok or an lvalue is not required.
1028
1029 2008-01-09  Richard Guenther  <rguenther@suse.de>
1030
1031         PR middle-end/34458
1032         * tree-data-ref.c (initialize_matrix_A): Use tree_low_cst,
1033         adjust return type.
1034
1035 2008-01-09  Richard Guenther  <rguenther@suse.de>
1036
1037         PR middle-end/34679
1038         * tree.c (host_integerp): Check for sizetype only if the
1039         type is an integer type.
1040
1041 2008-01-09  Steven Bosscher  <stevenb.gcc@gmail.com>
1042
1043         PR debug/26364
1044         * opts.c (decode_options): Disable inlining of functions called
1045         once if not in unit-at-a-time mode.
1046
1047 2008-01-09  Alexandre Oliva  <aoliva@redhat.com>
1048
1049         * Makefile.in (dse.o): Remove duplicate $(RECOG_H) dependency.
1050
1051 2008-01-08  Richard Guenther  <rguenther@suse.de>
1052
1053         PR middle-end/31863
1054         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Bail
1055         out early if the result will be unused.
1056
1057 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
1058
1059         PR target/34709
1060         Revert:
1061
1062         2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
1063         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
1064         for TARGET_RECIP.
1065
1066 2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
1067
1068         * config/i386/i386.c (k8_cost, amdfam10_cost): Branch costs
1069         for vectorization tuned.
1070
1071 2008-01-08  Richard Guenther  <rguenther@suse.de>
1072
1073         PR tree-optimization/34683
1074         * tree-ssa-operands.c (operand_build_cmp): Export.
1075         * tree-ssa-operands.h (operand_build_cmp): Declare.
1076         * tree-vn.c (vuses_compare): Remove.
1077         (sort_vuses): Use operand_build_cmp.
1078         (sort_vuses_heap): Likewise.
1079         * tree-ssa-sccvn.c (vuses_to_vec): Use VEC_reserve, not VEC_alloc
1080         to re-use old VEC if available.  Do not sort already sorted VUSEs.
1081         (vdefs_to_vec): Do not sort already sorted VDEFs.
1082
1083 2008-01-08  Jakub Jelinek  <jakub@redhat.com>
1084
1085         PR middle-end/34694
1086         * omp-low.c (copy_var_decl): Copy also DECL_SOURCE_LOCATION.
1087
1088 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
1089
1090         PR target/34702
1091         * doc/invoke.texi (i386 and x86-64 Options) [mrecip]: Document
1092         limitations of reciprocal sequences on x86 targets.
1093
1094 2008-01-08  Richard Guenther  <rguenther@suse.de>
1095
1096         PR tree-optimization/34683
1097         * tree-flow-inline.h (var_ann): Remove overzealous asserts.
1098
1099 2008-01-07  Jakub Jelinek  <jakub@redhat.com>
1100
1101         PR target/34622
1102         * config/darwin.c (darwin_mergeable_string_section): Don't use
1103         .cstring if int_size_in_bytes != TREE_STRING_LENGTH.
1104
1105 2008-01-07  Uros Bizjak  <ubizjak@gmail.com>
1106
1107         PR target/34682
1108         * config/i386/i386.md (neg<mode>2): Rename from negsf2, negdf2 and
1109         negxf2.  Macroize expander using X87MODEF mode iterator.  Change
1110         predicates of op0 and op1 to register_operand.
1111         (abs<mode>2): Rename from abssf2, absdf2 and negxf2.  Macroize
1112         expander using X87MODEF mode iterator.  Change predicates of
1113         op0 and op1 to register_operand.
1114         ("*absneg<mode>2_mixed", "*absneg<mode>2_sse"): Rename from
1115         corresponding patterns and macroize using MODEF macro.  Change
1116         predicates of op0 and op1 to register_operand and remove
1117         "m" constraint. Disparage "r" alternative with "!".
1118         ("*absneg<mode>2_i387"): Rename from corresponding patterns and
1119         macroize using X87MODEF macro.  Change predicates of op0 and op1
1120         to register_operand and remove "m" constraint.  Disparage "r"
1121         alternative with "!".
1122         (absneg splitter with memory operands): Remove.
1123         ("*neg<mode>2_1", "*abs<mode>2_1"): Rename from corresponding
1124         patterns and macroize using X87MODEF mode iterator.
1125         * config/i386/sse.md (negv4sf2, absv4sf2, neg2vdf2, absv2df2):
1126         Change predicate of op1 to register_operand.
1127         * config/i386/i386.c (ix86_expand_fp_absneg_operator): Remove support
1128         for memory operands.
1129
1130 2008-01-07  Nathan Froyd  <froydnj@codesourcery.com>
1131
1132         * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add clause for mcpu=8548.
1133
1134 2008-01-07  Richard Guenther  <rguenther@suse.de>
1135
1136         * basic-block.h (struct edge_def): Pair dest_idx with goto_locus
1137         fields.
1138
1139 2008-01-07  Richard Guenther  <rguenther@suse.de>
1140
1141         PR tree-optimization/34683
1142         * tree-ssa-sccvn.c (vuses_to_vec): Pre-allocate the vector of
1143         VOPs of the needed size to save memory.  Use VEC_quick_push
1144         to save compile-time.
1145         (vdefs_to_vec): Likewise.
1146
1147 2008-01-07  Sa Liu  <saliu@de.ibm.com>
1148
1149         * config/spu/spu.md (divdf3): Genetate inline code for double
1150         division.  The implementation doesn't handle INF or NAN, therefore it
1151         only applies when -ffinite-math-only is given.
1152
1153 2008-01-06  Paolo Carlini  <pcarlini@suse.de>
1154
1155         PR libstdc++/34680
1156         * c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
1157         * doc/cpp.texi ([Common Predefined Macros]): Document.
1158
1159 2008-01-06  Uros Bizjak  <ubizjak@gmail.com>
1160
1161         * config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
1162         order to use commutative addition instead of subtraction.
1163
1164 2008-01-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>
1165             Mircea Namolaru  <namolaru@il.ibm.com>
1166             Vladimir Yanovsky  <yanov@il.ibm.com>
1167             Revital Eres  <eres@il.ibm.com>
1168
1169         PR tree-optimization/34263
1170         * tree-outof-ssa.c (process_single_block_loop_latch,
1171         contains_tree_r): New functions.
1172         (analyze_edges_for_bb): Call process_single_block_loop_latch
1173         function to empty single-basic-block latch block if possible.
1174
1175 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
1176
1177         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
1178         for TARGET_RECIP.
1179         (ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.
1180
1181 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
1182
1183         * c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR.
1184
1185 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
1186
1187         * config/mips/mips.c (mips_in_small_data_p): Reinstate size > 0 check.
1188
1189 2008-01-05  Jakub Jelinek  <jakub@redhat.com>
1190
1191         PR tree-optimization/34618
1192         * tree-outof-ssa.c (create_temp): Copy over DECL_GIMPLE_REG_P
1193         flag from T.
1194
1195 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
1196
1197         PR target/34673
1198         * config/i386/i386.c (ix86_emit_swsqrtsf): Swap input operands
1199         in the call to gen_rtx_NE.  Remove unneeded VECTOR_MODE_P check.
1200         Update copyright year.
1201
1202         * config/i386/i386.md (rsqrtsf2): Enable for TARGET_SSE_MATH.
1203         Update copyright year.
1204         * config/i386/sse.md (rsqrtv4sf2): Ditto. Unconditionally expand
1205         using NR fixup.
1206
1207 2008-01-05  Zhouyi Zhou  <zhouzhouyi@FreeBSD.org>
1208
1209         * tree-vrp.c (find_conditional_asserts): Remove redundant check that
1210         edge does not point to current bb before changing need_assert.
1211
1212 2008-01-04  Richard Guenther  <rguenther@suse.de>
1213
1214         PR middle-end/34029
1215         * tree-cfg.c (verify_expr): Do not look inside ADDR_EXPRs
1216         for verifying purposes if they are is_gimple_min_invariant.
1217
1218 2008-01-04  Aldy Hernandez  <aldyh@redhat.com>
1219
1220         PR tree-optimization/34448
1221         PR tree-optimization/34465
1222         * gimplify.c (gimplify_init_constructor): Add new parameter
1223         notify_temp_creation.  Use it.
1224         (gimplify_modify_expr_rhs): Take volatiles into account when
1225         optimizing constructors.
1226         Do not optimize constructors if gimplify_init_constructor will dump to
1227         memory.
1228         * gcc.dg/tree-ssa/pr32901.c: Tests const volatiles.
1229         * gcc.c-torture/compile/pr34448.c: New.
1230
1231 2008-01-04  Jakub Jelinek  <jakub@redhat.com>
1232
1233         PR gcov-profile/34609
1234         * tree-inline.c (declare_return_variable): Set TREE_ADDRESSABLE on
1235         return_slot if result is TREE_ADDRESSABLE.
1236
1237 2008-01-04  Richard Sandiford  <rsandifo@nildram.co.uk>
1238
1239         * config/mips/mips.md (sqrt_condition): Tweak comment.
1240         (recip_condition): Likewise.  Require TARGET_FLOAT64 for DFmode.
1241
1242 2008-01-03  Tom Tromey  <tromey@redhat.com>
1243
1244         PR c/34457
1245         * c-common.c (c_type_hash): Handle VLAs.
1246
1247 2008-01-03  Jan Hubicka  <jh@suse.cz>
1248
1249         PR tree-optimization/31081
1250         * tree-inline.c (remap_ssa_name): Initialize uninitialized SSA vars to
1251         0 when inlining and not inlining to first basic block.
1252         (remap_decl): When var is initialized to 0, don't set default_def.
1253         (expand_call_inline): Set entry_bb.
1254         * tree-inline.h (copy_body_data): Add entry_bb.
1255
1256 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
1257
1258         PR c++/34619
1259         * cgraphunit.c (cgraph_build_static_cdtor): set_cfun back to NULL
1260         before returning.
1261
1262         PR tree-optimization/29484
1263         * tree-inline.c (inline_forbidden_p_2): New function.
1264         (inline_forbidden_p): Disallow inlining if some static var
1265         has an address of a local LABEL_DECL in its initializer.
1266         * doc/extend.texi (Labels as Values): Document &&foo behaviour
1267         vs. inlining.
1268
1269 2008-01-03  Sebastian Pop  <sebastian.pop@amd.com>
1270
1271         PR tree-optimization/34635
1272         * tree-data-ref.c (add_other_self_distances): Make sure that the
1273         evolution step is constant.
1274
1275 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
1276
1277         PR middle-end/34608
1278         * omp-low.c (expand_omp_parallel): Purge dead EH edges in the child fn.
1279
1280 2008-01-02  Richard Sandiford  <rsandifo@nildram.co.uk>
1281
1282         * tree-sra.c (scalarize_init): Insert the generate_element_init
1283         statements after the generate_element_zero statements.
1284
1285 2008-01-02  Richard Guenther  <rguenther@suse.de>
1286
1287         PR middle-end/34093
1288         PR middle-end/31976
1289         * tree-ssa-operands.c (ssa_operand_alloc): Also allocate a buffer
1290         for very large number of operands instead of ICEing.
1291
1292 2008-01-02  Arthur Norman <acn1@cam.ac.uk>
1293
1294         PR target/34013
1295         * gcc/config/i386/i386.c (ix86_expand_prologue): Save red-zone
1296         while stack probing.
1297
1298 2008-01-01  Douglas Gregor  <doug.gregor@gmail.com>
1299
1300         * c-opts.c (sanitize_cpp_opts): Don't warn about "long long" when
1301         in C++0x mode.
1302
1303 2008-01-01  Volker Reichelt  <v.reichelt@netcologne.de>
1304
1305         PR libmudflap/26442
1306         * tree-mudflap.c (mx_register_decls): Guard warning by
1307         !DECL_ARTIFICIAL check.
1308
1309 2008-01-01  Jakub Jelinek  <jakub@redhat.com>
1310
1311         * config/i386/sse.md (sse5_pperm, sse5_pperm_pack_v2di_v4si,
1312         sse5_pperm_pack_v4si_v8hi, sse5_pperm_pack_v8hi_v16qi,
1313         sse5_perm<mode>): Fix constraints.