gcc/ChangeLog

   1 2012-01-25  Richard Guenther  <rguenther@suse.de>
   2
   3         * tree.h (get_pointer_alignment_1): Declare.
   4         * builtins.c (get_pointer_alignment_1): New function.
   5         (get_pointer_alignment): Use it.
   6
   7 2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
   8
   9         PR rtl-optimization/48308
  10         * combine.c (enum undo_kind): Add UNDO_LINKS.
  11         (struct undo): Add member l to other_contents and where.
  12         (do_SUBST_LINK): New.
  13         (SUBST_LINK): New.
  14         (try_combine): Handle LOG_LINKS for the dummy i1 case.
  15         (undo_all): Handle UNDO_LINKS.
  16
  17 2012-01-25  Richard Henderson  <rth@redhat.com>
  18
  19         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
  20         mem inputs.
  21
  22 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
  23
  24         * optabs.c (gen_atomic_test_and_set): Use each argument.
  25
  26 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
  27
  28         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
  29         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
  30         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
  31         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
  32         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
  33         TARGET_PAIRED_SINGLE_FLOAT.
  34
  35 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
  36
  37         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
  38         (in_struct, return_val): Remove MEM documentation.
  39         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
  40         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
  41         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
  42         and MEM_SCALAR.
  43         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
  44         * cfgexpand.c (add_alias_set_conflicts): Likewise.
  45         * expr.c (store_field): Likewise.
  46         * function.c (assign_stack_temp_for_type): Likewise.
  47         * ifcvt.c (noce_try_cmove_arith): Likewise.
  48         * reload1.c (reload): Likewise.
  49         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
  50         (alpha_set_memflags): Likewise.
  51         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
  52
  53 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
  54
  55         * rtl.h (true_dependence, canon_true_dependence): Remove varies
  56         parameter.
  57         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
  58         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
  59         (true_dependence_1, true_dependence, canon_true_dependence): Remove
  60         varies parameter.
  61         * cselib.c (cselib_rtx_varies_p): Delete.
  62         (cselib_invalidate_mem): Update call to canon_true_dependence.
  63         * dse.c (record_store, check_mem_read_rtx): Likewise.
  64         (scan_reads_nospill): Likewise.
  65         * cse.c (check_dependence): Likewise.
  66         (cse_rtx_varies_p): Delete.
  67         * expr.c (safe_from_p): Update call to true_dependence.
  68         * ira.c (validate_equiv_mem_from_store): Likewise.
  69         (memref_referenced_p): Likewise.
  70         * postreload-gcse.c (find_mem_conflicts): Likewise.
  71         * sched-deps.c (sched_analyze_2): Likewise.
  72         * store-motion.c (load_kills_store): Likewise.
  73         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
  74         * gcse.c (mems_conflict_for_gcse_p): Likewise.
  75         (compute_transp): Update call to canon_true_dependence.
  76
  77 2012-01-25  Richard Henderson  <rth@redhat.com>
  78
  79         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
  80         (maybe_emit_atomic_test_and_set): New.
  81         (expand_sync_lock_test_and_set): Use it.
  82         (expand_atomic_test_and_set): Likewise.
  83         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
  84         the implementation; clarify implementation defined details.
  85         * doc/md.texi (atomic_test_and_set): Document.
  86
  87 2012-01-25  Richard Henderson  <rth@redhat.com>
  88
  89         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
  90
  91 2012-01-25  Richard Henderson  <rth@redhat.com>
  92
  93         PR target/51968
  94         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
  95         to effect no-op split.
  96
  97 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
  98             Patrick Marlier  <patrick.marlier@gmail.com>
  99
 100         * trans-mem.c (requires_barrier): Do not instrument thread local
 101         variables and emit save/restore for them.
 102
 103 2012-01-24  Jason Merrill  <jason@redhat.com>
 104
 105         PR c++/51812
 106         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
 107         output static aliases.
 108
 109 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
 110
 111         PR driver/47249
 112         * common.opt (-pie, -shared, pie, shared): Change from Common to
 113         Driver.
 114         * gcc.c (display_help): Display help for -pie and -shared.
 115
 116 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
 117
 118         PR target/49868
 119         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
 120         Remove note on size/offset limitation.
 121         (AVR Variable Attributes): Add example how to read data located
 122         with progmem.  Refer to named address spaces.
 123         * doc/invoke.texi (AVR Options): Fix typo.
 124
 125 2012-01-24  Richard Guenther  <rguenther@suse.de>
 126
 127         Forward-port to trunk
 128         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
 129
 130         PR middle-end/45678
 131         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
 132         op0 isn't sufficiently aligned and there is movmisalignM
 133         insn for mode, use it to load op0 into a temporary register.
 134
 135 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
 136
 137         PR target/51957
 138         * target.def (const_not_ok_for_debug_p): New hook.
 139         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
 140         documentation.
 141         * doc/tm.texi: Regenerated.
 142         * dwarf2out.c (const_ok_for_output_1): If
 143         targetm.const_not_ok_for_debug_p returns true, fail.
 144         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
 145         function.
 146         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
 147
 148 2012-01-23  Kai Tietz  <ktietz@redhat.com>
 149
 150         PR target/51900
 151         * config/i386/predicates.md (symbolic_operand): Allow
 152         UNSPEC_PCREL as PIC expression for lea.
 153         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
 154         * config/i386/i386.c (ix86_delegitimize_address): Handle
 155         UNSPEC_PCREL for none-MEM, too.
 156
 157 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
 158
 159         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
 160         (ipa_tm_create_version_alias): Same.
 161
 162 2012-01-18  Uros Bizjak  <ubizjak@gmail.com>
 163
 164         PR libitm/51830
 165         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
 166         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
 167
 168 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
 169             Patrick Marlier  <patrick.marlier@gmail.com>
 170             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
 171
 172         PR lto/51916
 173         * lto-wrapper.c (run_gcc): Pass the LTO section name to
 174         simple_object_start_read.
 175
 176 2012-01-23  Richard Guenther  <rguenther@suse.de>
 177
 178
 179         PR tree-optimization/51895
 180         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
 181         parameter decomposition into BLKmode components.
 182
 183 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
 184
 185         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
 186         fake variables for restrict-qualified pointers whose pointed-to type
 187         contains a placeholder.
 188
 189 2012-01-23  Richard Guenther  <rguenther@suse.de>
 190
 191         PR tree-optimization/51949
 192         * ipa-split.c (execute_split_functions): Do not split malloc functions.
 193
 194 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
 195
 196         PR rtl-optimization/51933
 197         * ree.c (transform_ifelse): Return true right away if dstreg is
 198         already wider or equal to cand->mode.
 199         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
 200         (make_defs_and_copies_lists): Remove defs_list and copies_list
 201         arguments, add state argument, just truncate state->work_list
 202         instead of always allocating and freeing the vector.  Assert that
 203         get_defs succeeds instead of returning 2.  Changed return type to bool.
 204         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
 205         have ext_src_mode, see if it has been modified already with the
 206         right kind of extension and has been extended before from the
 207         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
 208         just return true.  Remember the original mode in state->modified array.
 209         (combine_reaching_defs): Add state argument.  Don't allocate and
 210         free here def_list, copied_list and vec vectors, instead just
 211         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
 212         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
 213         Add state variable, clear vectors in it, initialize state.modified
 214         if needed.  Free all the vectors at the end and state.modified too.
 215         Don't skip a candidate if the extension expression has been modified.
 216
 217 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
 218
 219         PR target/47096
 220         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
 221          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
 222         (extra_options) interix.opt -> i386/interix.opt"
 223         (extra_objs):Add winnt-stubs.o
 224         * configure.ac: Add interix to target_os .comm on PE check.
 225         * configure: Regenerate.
 226         * config/interix3.h: Delete and move bits to..
 227         * config/interix.h: Delete and move bits to..
 228         * config/i386/i386-interix3.h: Delete and move bits to..
 229         * config/i386/i386-interix.h: ..here.
 230         (TARGET_CPU_DEFAULT): Remove redefinition.
 231         (TARGET_ASM_CONSTRUCTOR): Undefine.
 232         (SUBTARGET_SWITCHES): Define for ms-bitfields.
 233         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
 234         (PTRDIFF_TYPE): Define.
 235         (LONG_DOUBLE_TYPE_SIZE): Define.
 236         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
 237         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
 238         (TARGET_SECTION_TYPE_FLAGS): Define.
 239         (ASM_DECLARE_FUNCTION_NAME): Define.
 240         (ASM_OUTPUT_EXTERNAL): Define.
 241         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
 242         (ASM_OUTPUT_ALIGNED_BSS): Define.
 243         (PCC_BITFIELD_TYPE_MATTERS): Define.
 244         (USE_CONST_SECTION): Define.
 245         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
 246         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
 247         (SUPPORTS_ONE_ONLY): Remove.
 248         (I386_PE_STRIP_ENCODING): Define.
 249         * config/interix.opt: Delete and move bits to..
 250         * config/i386/interix.opt: ..here. New.
 251         (mpe-aligned-commons): Add.
 252         * config/i386/t-interix: Add copyright header.
 253         (winnt-stubs.o): Add rule.
 254
 255 2012-01-22  Jason Merrill  <jason@redhat.com>
 256
 257         PR c++/51832
 258         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
 259         for extra name aliases.
 260
 261 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
 262
 263         PR rtl-optimization/51924
 264         * ree.c (combine_set_extension): Improve debugging message.
 265         (combine_reaching_defs): Likewise.
 266         (get_defs): Rename confusingly named variable.
 267         (find_and_remove_re): Skip a candidate if the extension expression has
 268         been modified.
 269
 270 2012-01-21  Robert Millan  <rmh@gnu.org>
 271             Gerald Pfeifer  <gerald@pfeifer.com>
 272
 273         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
 274         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
 275
 276 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
 277
 278         PR tree-optimization/51914
 279         * tree-vect-stmts.c (vectorizable_conversion): For
 280         cvt_type && modifier == WIDEN, put temporary with cvt_type
 281         at the beginning of vec_dsts and set vec_dest to temporary
 282         with vectype_out.
 283
 284 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
 285
 286         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
 287
 288 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
 289
 290         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
 291         * config/rs6000/rs6000.c: Likewise.
 292
 293 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
 294
 295         PR target/51915
 296         * config/arm/arm.c (arm_count_output_move_double_insns): Call
 297         output_move_double on a copy of operands array.
 298
 299 2012-01-20  Cary Coutant  <ccoutant@google.com>
 300             Dodji Seketeli  <dodji@redhat.com>
 301
 302         PR debug/45682
 303         * dwarf2out.c (copy_declaration_context): Return ref to parent
 304         of declaration DIE, if necessary.
 305         (remove_child_or_replace_with_skeleton): Add new parameter; update
 306         caller.  Place skeleton DIE under parent DIE of original declaration.
 307         Move call to copy_declaration_context to here ...
 308         (break_out_comdat_types): ... from here.
 309
 310 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 311
 312         PR rtl-optimization/51856
 313         * reload.c (find_reloads_subreg_address): Set the address_reloaded
 314         flag to reloaded.
 315
 316 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
 317
 318         PR target/51819
 319         * config/arm/arm.c (arm_print_operand): Correct output of alignment
 320         hints for neon loads and stores.
 321
 322 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
 323
 324         PR target/49868
 325         PR target/50887
 326         * doc/extend.texi (Named Address Spaces): Split into subsections.
 327         (AVR Named Address Spaces): New subsection.
 328         (M32C Named Address Spaces): New subsection.
 329         (RL78 Named Address Spaces): New subsection.
 330         (SPU Named Address Spaces): New subsection.
 331         (Variable Attributes): New anchor "AVR Variable Attributes".
 332         (AVR Variable Attributes): Rewrite and avoid wording
 333         "address space" in this context.
 334         * doc/invoke.texi (AVR Options): Rewrite and add documentation
 335         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
 336         (AVR Built-in Macros): New subsubsection therein.
 337         * doc/md.texi (AVR constraints): Remove "C04", "R".
 338
 339 2012-01-20  Richard Guenther  <rguenther@suse.de>
 340
 341         PR tree-optimization/51903
 342         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
 343         when removing stmts.
 344
 345 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
 346
 347         PR target/50313
 348         * config/arm/arm.c (arm_load_pic_register): Use
 349         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
 350         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
 351         (arm_pic_static_addr): Likewise.
 352         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
 353         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
 354         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
 355         (pic_load_addr_unified): New.
 356
 357 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
 358
 359         PR target/51106
 360         * function.c (instantiate_virtual_regs_in_insn): Use
 361         delete_insn_and_edges when removing a wrong asm insn.
 362
 363 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
 364
 365         PR rtl-optimization/40761
 366         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
 367         Add new member loop_num.
 368         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
 369         (ira_build): Remove the parameter.
 370
 371         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
 372         (ira.c): Do not build CFG loops for one region allocation.  Remove
 373         argument from ira_build call.
 374
 375         * ira-build.c (init_loop_tree_node): New function.
 376         (create_loop_tree_nodes): Use it.  Separate the case when CFG
 377         loops are not built.
 378         (more_one_region_p): Check current_loops.
 379         (finish_loop_tree_nodes): Separate the case when CFG loops are not
 380         built.
 381         (add_loop_to_tree): Process loop equal to NULL too.
 382         (form_loop_tree): Separate the case when CFG loops are not built.
 383         Use explicitly number for the root.
 384         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
 385         an assertion.
 386         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
 387         instead of loop->num.
 388         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
 389         (mark_all_loops_for_removal): Ditto.
 390         (remove_unnecessary_regions): Separate the case when CFG loops
 391         are not built.
 392         (ira_build): Remove the parameter.  Use explicit number of regions
 393         when CFG loops are not built.
 394
 395         * ira-color.c (print_loop_title): Separate the case for the root node.
 396         Use loop_num instead of loop->num.
 397         (move_spill_restore): Use loop_num instead of loop->num.
 398
 399         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
 400         (change_loop): Ditto.
 401         (change_loop): Use loop_num instead of loop->num.
 402
 403         * ira-lives.c (process_bb_node_lives): Ditto.
 404
 405         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
 406
 407         * ira-conflicts.c (print_allocno_conflicts): Ditto.
 408
 409 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
 410
 411         PR libmudflap/40778
 412         * tree-mudflap.c (mf_artificial): New function.
 413         (execute_mudflap_function_ops, execute_mudflap_function_decls,
 414         mx_register_decls, mudflap_enqueue_decl): Use it.
 415
 416         PR target/51876
 417         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
 418         numbers in the insn pattern.
 419
 420 2012-01-19  Michael Matz  <matz@suse.de>
 421
 422         PR tree-optimization/46590
 423         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
 424         use it in remembering which conflicts we already created.
 425         (add_scope_conflicts): Adjust call to above, (de)allocate helper
 426         bitmap.
 427
 428 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
 429
 430         PR lto/51280
 431         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
 432         (merge_and_complain): Same.
 433
 434 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
 435
 436         PR bootstrap/50237
 437         * config/initfini-array.h: Guard content of the header
 438         with #ifdef HAVE_INITFINI_ARRAY.
 439         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
 440         Add initfini-array.h to tm_file here.
 441         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
 442         * config.gcc: Don't add initfini-array.h to tm_file here.
 443         * configure: Regenerated.
 444
 445 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
 446
 447         PR rtl-optimization/51505
 448         * df-problems.c (df_kill_notes): New parameter live. Update comment.
 449         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
 450         (df_note_bb_compute): Update the call to df_kill_notes.
 451
 452 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
 453
 454         * trans-mem.c (requires_barrier): Remove call to is_global_var.
 455
 456 2012-01-18  Richard Guenther  <rguenther@suse.de>
 457
 458         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
 459         of conversions to void *.
 460
 461 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 462             Richard Sandiford  <rdsandiford@googlemail.com>
 463
 464         PR middle-end/50325
 465         PR middle-end/51192
 466         * optabs.h (simplify_expand_binop): Declare.
 467         * optabs.c (simplify_expand_binop): Make global.
 468         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
 469         endian targets if the source cannot be exactly covered by word
 470         mode chunks.
 471
 472 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
 473
 474         PR bootstrap/51872
 475         * hard-reg-set.h (struct hard_reg_set_container): New type.
 476         * target.h (struct hard_reg_set_container): Forward declare.
 477         * target.def (set_up_by_prologue): New target hook.
 478         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
 479         * doc/tm.texi: Regenerated.
 480         * function.c (thread_prologue_and_epilogue_insns): Change
 481         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
 482         Call targetm.set_up_by_prologue on it.
 483         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
 484         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
 485
 486 2012-01-17  Nick Clifton  <nickc@redhat.com>
 487
 488         * config/rx/rx.c (rx_can_use_simple_return): New function.
 489         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
 490         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
 491
 492 2012-01-17  Richard Guenther  <rguenther@suse.de>
 493
 494         PR middle-end/51782
 495         * expr.c (expand_assignment): Take address-space information
 496         from the address operand of MEM_REF and TARGET_MEM_REF.
 497         (expand_expr_real_1): Likewise.
 498
 499 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 500
 501         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
 502         reload dump is requested.
 503
 504 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
 505
 506         PR other/51165
 507         * trans-mem.c (requires_barrier): Call may_be_aliased.
 508
 509 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
 510
 511         PR tree-optimization/51877
 512         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
 513         call arguments and fndecls compare equal, instead return false if they
 514         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
 515         both SSA_NAMEs that are valueized the same, or they satisfy
 516         operand_equal_p.
 517
 518 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 519
 520         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
 521         Solaris 11+.
 522         * configure: Regenerate.
 523
 524 2012-01-16  Jan Hubicka  <jh@suse.cz>
 525
 526         PR c/12245
 527         PR c++/14179
 528         * convert.c (convert_to_integer): Use fold_convert for
 529         converting an INTEGER_CST to integer type.
 530
 531 2012-01-16  Jason Merrill  <jason@redhat.com>
 532
 533         PR c++/14179
 534         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
 535
 536 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
 537
 538         PR bootstrap/51860
 539         * config/s390/s390.c (s390_chunkify_start): Don't skip
 540         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
 541         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
 542         If insn is followed by NOTE_INSN_VAR_LOCATION or
 543         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
 544         Don't use location of note insns.
 545
 546         PR tree-optimization/51865
 547         * tree-inline.c (tree_function_versioning): Call remap_decl
 548         on DECL_RESULT whenever it has VOID_TYPE_P type.
 549
 550 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
 551
 552         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
 553         for calls to locally-binding MIPS16 functions if only the return
 554         type uses float regs.
 555
 556 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
 557             Richard Sandiford  <rdsandiford@googlemail.com>
 558
 559         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
 560         (SYMBOL_32_HIGH): Likewise.
 561         (mips_output_tls_reloc_directive): Declare.
 562         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
 563         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
 564         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
 565         (mips_lo_relocs, mips_hi_relocs): Make extern.
 566         (mips16_stub_function): Move up file.
 567         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
 568         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
 569         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
 570         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
 571         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
 572         (mips_get_tp): Add MIPS16 support.
 573         (mips_legitimize_tls_address): Remove MIPS16 sorry().
 574         Generalize DTPREL and TPREL handling.
 575         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
 576         Add MIPS16 TLS support.
 577         (mips_output_tls_reloc_directive): New function.
 578         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
 579         * config/mips/predicates.md (symbolic_operand_with_high)
 580         (tls_reloc_operand): New predicates.
 581         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
 582         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
 583         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
 584         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
 585         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
 586         (*tls_get_tp_mips16_call_<mode>): Likewise.
 587
 588 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
 589
 590         PR rtl-optimization/51821
 591         * recog.c (peep2_find_free_register): Determine clobbered registers
 592         from insn pattern.
 593
 594 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
 595
 596         PR target/50925
 597         * config/avr/avr-protos.h: Revert change of 2012-01-09.
 598         * config/avr/avr.c: Likewise.
 599         * config/avr/avr.h: Likewise.
 600
 601 2012-01-13  Ian Lance Taylor  <iant@google.com>
 602
 603         PR c++/50012
 604         * tree.h (TYPE_QUALS): Add cast to int.
 605         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
 606
 607 2012-01-13  Ian Lance Taylor  <iant@google.com>
 608
 609         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
 610         comparing param_index to VEC_length result.
 611
 612 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
 613
 614         * c-decl.c: Do not include tree-mudflap.h
 615         * tree-optimize.c: Likewise.
 616         * Makefile.in: Update dependencies.
 617
 618 2012-01-13  Richard Guenther  <rguenther@suse.de>
 619
 620         PR middle-end/8081
 621         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
 622         variable-sized result always use RSO.
 623
 624 2012-01-12  DJ Delorie  <dj@redhat.com>
 625
 626         * cfgexpand.c (convert_debug_memory_address): Allow any valid
 627         pointer type, not just the default pointer type.
 628
 629 2012-01-09  Richard Henderson  <rth@redhat.com>
 630             Denis Chertykov  <chertykov@gmail.com>
 631
 632         PR target/50925
 633         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
 634         * config/avr/avr.c (avr_can_eliminate): Simplify.
 635         (avr_initial_elimination_offset): Likewise.
 636         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
 637         (expand_epilogue): Likewise.
 638         (avr_legitimize_address): Gut.
 639         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
 640         (avr_hard_regno_nregs): New.
 641         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
 642         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
 643         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
 644         add soft frame pointer.
 645         (CALL_USED_REGISTERS): Likewise.
 646         (REG_CLASS_CONTENTS): Likewise.
 647         (REGISTER_NAMES): Likewise.
 648         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
 649         (HARD_FRAME_POINTER_REGNUM): New.
 650         (FRAME_POINTER_REGNUM): Use soft frame pointer.
 651         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
 652         remove the HARD_FRAME_POINTER self-elimination.
 653
 654 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
 655
 656         PR target/51756
 657         * config/avr/avr.c (avr_encode_section_info): Test for absence of
 658         DECL_EXTERNAL when checking for initializers of progmem variables.
 659
 660 2012-01-12  Ira Rosen  <irar@il.ibm.com>
 661
 662         PR tree-optimization/51799
 663         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
 664         that the last operation is a type demotion.
 665
 666 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
 667
 668         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
 669         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
 670
 671 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
 672
 673         PR bootstrap/51796
 674         * combine.c (distribute_notes): If i3 is a noreturn call,
 675         allow old_size to be equal to args_size and make sure the
 676         noreturn call gets REG_ARGS_SIZE note.
 677         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
 678         on noreturn calls even when the delta is 0.
 679
 680 2012-01-11  Nathan Sidwell  <nathan@acm.org>
 681
 682         * gcov.c (STRING_SIZE): Remove.
 683         (generate_results): Erase annotations for source files with no
 684         coverage information.
 685         (read_line): New.
 686         (output_lines): Use it.
 687
 688 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 689
 690         * gimple.h (gimplify_body): Remove first argument.
 691         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
 692         pointer set here, instead just pass DATA to walk_tree.
 693         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
 694         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
 695         (unvisit_body): Likewise, but with unmark_visited.
 696         (gimplify_body): Remove BODY_P argument and adjust.
 697         (gimplify_function_tree): Adjust call to gimplify_body.
 698         * omp-low.c (finalize_task_copyfn): Likewise.
 699
 700 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 701
 702         * tree.h (build_function_decl_skip_args): Add boolean parameter.
 703         (build_function_type_skip_args): Delete.
 704         * tree.c (build_function_type_skip_args): Make static and add
 705         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
 706         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
 707         pass it to build_function_type_skip_args.
 708         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
 709         (tree_function_versioning): Likewise.
 710         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
 711         build_function_decl_skip_args.
 712         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
 713         and pass it to build_function_decl_skip_args/tree_function_versioning.
 714         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
 715         * ipa-inline-transform.c (save_inline_function_body): Likewise.
 716         * trans-mem.c (ipa_tm_create_version): Likewise.
 717         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
 718         * tree-inline.c (declare_return_variable): Remove always-true test.
 719         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
 720         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
 721         * ipa-split.c (split_function): Skip the return value for the split
 722         part if it doesn't return.
 723
 724 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 725
 726         PR tree-optimization/49642
 727         * ipa-split.c (forbidden_dominators): New variable.
 728         (check_forbidden_calls): New function.
 729         (dominated_by_forbidden): Likewise.
 730         (consider_split): Check for forbidden dominators.
 731         (execute_split_functions): Initialize and free forbidden
 732         dominators info; call check_forbidden_calls.
 733
 734 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 735
 736         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
 737
 738 2012-01-11  Nick Clifton  <nickc@redhat.com>
 739
 740         * config/rx/rx.md (return): Define pattern.
 741
 742 2012-01-11  Richard Guenther  <rguenther@suse.de>
 743
 744         * doc/extend.texi (malloc attribute): Adjust according to
 745         implementation.
 746
 747 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
 748             Patrick Marlier  <patrick.marlier@gmail.com>
 749
 750         PR middle-end/51516
 751         * trans-mem.c (get_cg_data): Traverse aliases if requested.
 752         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
 753         (ipa_tm_note_irrevocable): Same.
 754         (ipa_tm_scan_irr_block): Same.
 755         (ipa_tm_decrement_clone_counts): Same.
 756         (ipa_tm_scan_irr_function): Same.
 757         (ipa_tm_create_version_alias): Same.
 758         (ipa_tm_create_version): Same.
 759         (ipa_tm_transform_calls_redirect): Same.
 760         (ipa_tm_transform_calls): Same.
 761         (ipa_tm_transform_transaction): Same.
 762         (ipa_tm_execute): Same.
 763
 764 2012-01-10  Richard Guenther  <rguenther@suse.de>
 765
 766         PR middle-end/51806
 767         * opts.c (common_handle_option): Handle -Werror.
 768
 769 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
 770
 771         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
 772         operand number.
 773
 774 2012-01-10  Jason Merrill  <jason@redhat.com>
 775
 776         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
 777         information.
 778
 779 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 780
 781         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
 782         supports R_386_TLS_GD_PLT reloc.
 783         (gcc_cv_as_ix86_tlsldmplt): Check if linker
 784         supports R_386_TLS_LDM_PLT reloc.
 785         * configure: Regenerate.
 786         * config.in: Regenerate.
 787
 788 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
 789
 790         PR target/49868
 791         Extend __pgmx semantics to linearize memory.
 792         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
 793         determine if code comes inline or from libgcc.
 794         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
 795         (movmem_qi, movmem_qi): Set constraint #2 to "n".
 796         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
 797         (movmemx_qi, movmemx_hi): New insns.
 798         (xload_<mode>_libgcc): Rewrite to new insn condition.
 799         (xload_<mode>): Remove insns.
 800         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
 801         cases that don't satisfy avr_xload_libgcc_p().
 802         (avr_addr_space_convert): Allow converting in any direction.
 803         (avr_addr_space_subset_p): Return always true.
 804         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
 805         (avr_emit_movmemhi): Ditto.
 806         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
 807         (avr_out_movmem): Ditto.
 808         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
 809         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
 810         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
 811         (avr_encode_section_info): Encode 'progmem' in symbol flags.
 812         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
 813
 814 2012-01-10  Richard Guenther  <rguenther@suse.de>
 815
 816         PR tree-optimization/50913
 817         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
 818         Require data-refs to be representable by Graphite with respect
 819         to any loop nest.
 820
 821 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
 822
 823         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
 824         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
 825
 826 2012-01-10  Tom de Vries  <tom@codesourcery.com>
 827
 828         PR rtl-optimization/51271
 829         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
 830         handling annulled branch.
 831
 832 2012-01-10  Richard Henderson  <rth@redhat.com>
 833
 834         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
 835         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
 836         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
 837         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
 838         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
 839         arm_expand_vec_perm_const): New.
 840         * config/arm/arm-protos.h: Update.
 841         * config/arm/neon.md (UNSPEC_VCONCAT): New.
 842         (*neon_vswp<VDQX>): New.
 843         (neon_vcombine<VDX>): Use neon_split_vcombine.
 844         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
 845         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
 846         (vec_perm<VE>): New.
 847
 848 2012-01-10  Richard Henderson  <rth@redhat.com>
 849
 850         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
 851         use it if reload_completed.
 852         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
 853         arm_output_asm_insn, arm_process_output_memory_barrier,
 854         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
 855         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
 856         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
 857         arm_process_output_sync_insn, arm_output_sync_insn,
 858         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
 859         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
 860         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
 861         (emit_unlikely_jump): New.
 862         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
 863         (arm_split_atomic_op): New.
 864         * config/arm/arm-protos.h: Update.
 865         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
 866         (struct arm_sync_generator): Remove.
 867         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
 868         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
 869         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
 870         (VUNSPEC_LL, VUNSPEC_SC): New.
 871         (sync_result, sync_memory, sync_required_value, sync_new_value,
 872         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
 873         (attr length): Don't use arm_sync_loop_insns.
 874         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
 875         (movsfcc, movdfcc): Likewise.
 876         * config/arm/constraints.md (Ua): New.
 877         * config/arm/prediates.md (mem_noofs_operand): New.
 878         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
 879         (sync_clobber, sync_t2_reqd): Remove.
 880         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
 881         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
 882         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
 883         (arm_sync_compare_and_swap<SIDI>): Remove.
 884         (arm_sync_compare_and_swap<NARROW>): Remove.
 885         (arm_sync_lock_test_and_set<SIDI>): Remove.
 886         (arm_sync_lock_test_and_set<NARROW>): Remove.
 887         (arm_sync_new_<syncop><SIDI>): Remove.
 888         (arm_sync_new_<syncop><NARROW>): Remove.
 889         (arm_sync_new_nand<SIDI>): Remove.
 890         (arm_sync_new_nand<NARROW>): Remove.
 891         (arm_sync_old_<syncop><SIDI>): Remove.
 892         (arm_sync_old_<syncop><NARROW>): Remove.
 893         (arm_sync_old_nand<SIDI>): Remove.
 894         (arm_sync_old_nand<NARROW>): Remove.
 895         (*memory_barrier): Merge arm_output_memory_barrier.
 896         (atomic_compare_and_swap<QHSD>): New.
 897         (atomic_compare_and_swap<NARROW>_1): New.
 898         (atomic_compare_and_swap<SIDI>_1): New.
 899         (atomic_exchange<QHSD>): New.
 900         (cas_cmp_operand, cas_cmp_str): New.
 901         (atomic_op_operand, atomic_op_str): New.
 902         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
 903         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
 904         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
 905         (arm_load_exclusive<NARROW>): New.
 906         (arm_load_exclusivesi, arm_load_exclusivedi): New.
 907         (arm_store_exclusive<QHSD>): New.
 908
 909 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
 910
 911         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
 912         reload patterns if -mvsx-scalar-memory.
 913
 914         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
 915         generated, even -mno-vsx-scalar-double was used.
 916         (vsx_xscvdpsp_scalar): Likewise.
 917         (vsx_xscvspdp_scalar2): Likewise.
 918
 919 2012-01-09  Tom de Vries  <tom@codesourcery.com>
 920             Andrew Pinski  <apinski@cavium.com>
 921
 922         PR debug/51471
 923         * reorg.c (fill_slots_from_thread): Don't speculate
 924         frame-related insns.
 925
 926 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
 927
 928         * sched-int.h (bb_note): Move to...
 929         * basic-block.h: ...here.
 930         * haifa-sched.c (bb_note): Move to...
 931         * cfgrtl.c: ...here.
 932         * function.c (next_block_for_reg): New function.
 933         (move_insn_for_shrink_wrap): Likewise.
 934         (prepare_shrink_wrap): Rewrite to use the above.
 935
 936 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
 937
 938         * gimple.c (is_gimple_non_addressable): Remove.
 939         * gimple.h: Remove is_gimple_non_addressable.
 940         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
 941         is_gimple_non_addressable.
 942         * trans-mem.c (expand_assign_tm): Same.
 943
 944 2012-01-09  Richard Guenther  <rguenther@suse.de>
 945
 946         PR tree-optimization/51775
 947         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
 948         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
 949
 950 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 951
 952         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
 953         tuning parameters.
 954         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
 955
 956 2012-01-09  Richard Guenther  <rguenther@suse.de>
 957
 958         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
 959
 960 2012-01-08  Jan Hubicka  <jh@suse.cz>
 961
 962         PR tree-optimize/51680
 963         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
 964         on when known_vals needs to be computed; cleanup.
 965
 966 2012-01-08  Jan Hubicka  <jh@suse.cz>
 967
 968         PR tree-optimize/51694
 969         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
 970
 971 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
 972
 973         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
 974         for -std=c++98 and -std=c++11 too.
 975
 976 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
 977
 978         * cfgloop.c (cancel_loop): Add free() of bbs array.
 979
 980 2012-01-07  Jan Hubicka  <jh@suse.cz>
 981
 982         PR tree-optimization/51600
 983         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
 984         that benefits small functions.
 985
 986 2012-01-07  Jan Hubicka  <jh@suse.cz>
 987
 988         * ipa-inline.c (want_inline_small_function_p): Fix formating.
 989
 990 2012-01-07  Jan Hubicka  <jh@suse.cz>
 991
 992         PR tree-optimization/51680
 993         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
 994         whose inlining reduce unit size.
 995
 996 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
 997
 998         PR bootstrap/51725
 999         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
1000         Add canonical node to containing_mem chain after the non-canonical
1001         one, even if there weren't any locs to propagate.
1002         (remove_useless_values): Keep only canonical values.
1003         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
1004         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
1005         canonicalize mem_chain elements that are not discarded.
1006
1007 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
1008
1009         PR target/47333
1010         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
1011         before emitting functions.
1012
1013         PR gcov-profile/50127
1014         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
1015         clear_aux_for_blocks.
1016
1017 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
1018
1019         PR debug/51746
1020         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
1021
1022 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
1023
1024         * c-decl.c (ext_block): Moved up.
1025         (collect_all_refs, for_each_global_decl): Take ext_block into account.
1026
1027 2012-01-06  Han Shen  <shenhan@google.com>
1028
1029         Translate built-in include paths for sysroot.
1030         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
1031         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
1032
1033         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
1034         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
1035
1036         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
1037         control whether sysroot should be prepended to gxx include dir.
1038
1039         * configure: Regenerate.
1040
1041 2012-01-06  Torvald Riegel  <triegel@redhat.com>
1042
1043         PR rtl-optimization/51771
1044         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
1045         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
1046
1047 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1048
1049         PR tree-optimization/51315
1050         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
1051         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
1052
1053 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
1054
1055         PR target/51681
1056         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
1057         for shrp pattern.  Correctly handle and fixup shift variable.
1058         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
1059
1060 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1061
1062         PR debug/51762
1063         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
1064         note when !ACCUMULATE_OUTGOING_ARGS.
1065
1066 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1067
1068         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
1069         condition.
1070         (extract_range_from_unary_expr_1): Avoid useless computations.
1071
1072 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1073
1074         PR rtl-optimization/51767
1075         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
1076         of jump_block and add an extra edge for degenerated asm gotos.
1077
1078         PR middle-end/51768
1079         * stmt.c (check_unique_operand_names): Don't ICE during error
1080         reporting if i is from labels chain.
1081
1082         PR middle-end/44777
1083         * profile.c (branch_prob): Split bbs that have exit edge
1084         and need a fake entry edge too.
1085
1086 2012-01-05  Jan Hubicka  <jh@suse.cz>
1087
1088         PR middle-end/49710
1089         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
1090         unlooping loops.
1091
1092 2012-01-05  Richard Guenther  <rguenther@suse.de>
1093
1094         PR lto/50490
1095         * tree-streamer-out.c (write_ts_optimization): New function.
1096         (streamer_write_tree_body): Call it.
1097         * tree-streamer-in.c (lto_input_ts_optimization): New function.
1098         (streamer_read_tree_body): Call it.
1099         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
1100
1101 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1102
1103         PR middle-end/51761
1104         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
1105         * gimplify.c (gimplify_cleanup_point_expr): Save and set
1106         in_cleanup_point_expr before gimplify_stmt call and restore it
1107         afterwards.
1108         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
1109         in_cleanup_point_expr is false.
1110
1111 2012-01-05  Richard Guenther  <rguenther@suse.de>
1112
1113         PR middle-end/51764
1114         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
1115         to c.opt.
1116         * toplev.c (process_options): Reject combining mudflap and LTO.
1117         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
1118
1119 2012-01-05  Richard Guenther  <rguenther@suse.de>
1120
1121         PR tree-optimization/51760
1122         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
1123         not VARYING.
1124         (bit_value_unop): Handle UNDEFINED operands.
1125         (bit_value_binop): Likewise.
1126
1127 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
1128
1129         * config/avr/avr.c (avr_replace_prefix): Remove.
1130         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
1131         (avr_asm_function_rodata_section): Ditto.
1132         (avr_asm_select_section): Ditto.
1133
1134 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
1135
1136         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
1137         insertion.
1138
1139 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1140
1141         PR bootstrap/51648
1142         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
1143         calls that have any non-fake successor edges.
1144
1145         PR debug/51746
1146         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
1147
1148 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1149
1150         PR tree-optimization/51624
1151         * tree-sra.c (build_ref_for_model): When replicating a chain of
1152         COMPONENT_REFs, stop as soon as the offset would become negative.
1153
1154 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
1155
1156         PR debug/51695
1157         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
1158         in .debug_loc on the floor.
1159
1160 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1161
1162         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
1163
1164 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1165             Adam Nemet  <anemet@caviumnetworks.com>
1166
1167         * config/mips/mips.md (size): Add SI and DI.
1168         (SIZE): New mode attribute.
1169         (U): New code attribute.
1170         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
1171         (mips_lbux_<mode>): Delete.
1172         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
1173         (mips_lhx): Use gen_mips_lhx_extsi.
1174         (mips_lhx_<mode>): Delete.
1175         (mips_lwx): Delete.
1176         (mips_l<size>x): New expand.
1177         (mips_lwx_<mode>): Delete.
1178         (mips_l<GPR:size>x_<P:mode>): New pattern.
1179         (*mips_lw<u>x_<P:mode>_ext): Likewise.
1180         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
1181         * config/mips/mips.c (mips_lx_address_p): New function.
1182         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
1183         (dsp64): New availability predicate.
1184         (mips_builtins): Add an entry for __builtin_mips_ldx.
1185         * config/mips/mips.h (ISA_HAS_LBX): New define.
1186         (ISA_HAS_LBUX): Likewise.
1187         (ISA_HAS_LHX): Likewise.
1188         (ISA_HAS_LHUX): Likewise.
1189         (ISA_HAS_LWX): Likewise.
1190         (ISA_HAS_LWUX): Likewise.
1191         (ISA_HAS_LDX): Likewise.
1192         * doc/extend.texi (__builtin_mips_ldx): Document.
1193
1194 2012-01-04  Tristan Gingold  <gingold@adacore.com>
1195
1196         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
1197         when long pointers are used.
1198         * config.build (*-*-*vms*): Handle all OpenVMS targets.
1199         (alpha64-dec-*vms*, alpha*-dec-*vms*)
1200         (ia64-hp-*vms*): Remove.
1201         * config/vms/xm-vms64.h: Delete.
1202
1203 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1204
1205         PR middle-end/51472
1206         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
1207
1208 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1209
1210         * opts.c (finish_options): Remove duplicate sorry.
1211
1212 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1213
1214         PR middle-end/51696
1215         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
1216         correctly.
1217
1218 2012-01-04  Richard Guenther  <rguenther@suse.de>
1219
1220         PR middle-end/51750
1221         * tree.c (size_low_cst): New function.
1222         * tree.h (size_low_cst): Declare.
1223         * fold-const.c (fold_comparison): Use it to extract the low
1224         part of the POINTER_PLUS_EXPR offset.
1225
1226 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
1227
1228         Fix clearing ZERO_REG
1229         * config/avr/avr.md (cc): Add alternative "ldi".
1230         (movqi_insn): Use it in cc attribute.
1231         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
1232         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
1233         (output_reload_insisf): Use ZERO_REG to pre-clear register.
1234
1235 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1236
1237         * configure: Regenerate.
1238
1239 2012-01-04  Richard Guenther  <rguenther@suse.de>
1240
1241         PR tree-optimization/49651
1242         * tree-ssa-structalias.c (type_can_have_subvars): New function.
1243         (var_can_have_subvars): Use it.
1244         (get_constraint_for_1): Only consider subfields if there can be any.
1245
1246 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1247
1248         PR bootstrap/51725
1249         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
1250         to its new canonical_cselib_val and the cselib_val was in
1251         first_containing_mem chain, but the canonical_cselib_val was not,
1252         add the latter into the chain.
1253         (cselib_invalidate_mem): Compare canonical_cselib_val of
1254         addr_list chain elt with v.
1255
1256         PR pch/51722
1257         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
1258         dwarf2out_undef): Allocate e.info using ggc_strdup instead
1259         of xstrdup.
1260         (output_macinfo_op): Don't ggc_strdup fd->filename.
1261         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
1262         then ggc_strdup it.  Don't free inc->info or cur->info.
1263         (output_macinfo): Don't free ref->info or file->info.
1264
1265 2012-01-03  Ira Rosen  <irar@il.ibm.com>
1266
1267         PR tree-optimization/51269
1268         * tree-vect-loop-manip.c (set_prologue_iterations): Make
1269         first_niters a pointer.
1270         (slpeel_tree_peel_loop_to_edge): Likewise.
1271         (vect_do_peeling_for_loop_bound): Update call to
1272         slpeel_tree_peel_loop_to_edge.
1273         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
1274         here.  Remove it from the parameters list.
1275         (vect_do_peeling_for_alignment): Update calls and compute
1276         wide_prolog_niters.
1277
1278 2012-01-03  Richard Guenther  <rguenther@suse.de>
1279
1280         PR tree-optimization/51070
1281         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
1282         Properly handle calls.
1283
1284 2012-01-03  Richard Guenther  <rguenther@suse.de>
1285
1286         PR tree-optimization/51692
1287         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
1288         the LHS of allocation stmts.
1289
1290 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1291
1292         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
1293
1294 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1295
1296         * collect2.c (main): In AIX specific computations for vector
1297         insertions, use CONST_CAST2 to cast from char ** to const char **.
1298
1299 2012-01-03  Richard Guenther  <rguenther@suse.de>
1300
1301         PR debug/51650
1302         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
1303         the context of a limbo DIE when it does not already exist.
1304
1305 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1306
1307         PR tree-optimization/51719
1308         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
1309         but direct call is, clear direct call's lhs and don't add fallthrough
1310         edge from dcall_bb to join_bb and PHIs.
1311
1312 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1313
1314         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
1315         the instructions emitted by the pattern.
1316         ("*TDC_insn_<mode>"): Add comment.
1317
1318 2012-01-03  Richard Guenther  <rguenther@suse.de>
1319
1320         PR middle-end/51730
1321         * fold-const.c (fold_comparison): Properly canonicalize
1322         tree offset and HOST_WIDE_INT bit position.
1323
1324 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
1325
1326         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
1327         operands for extzv pattern.
1328
1329 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1330
1331         PR bootstrap/51725
1332         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
1333         on mem_elt first.
1334
1335 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
1336
1337         * doc/invoke.texi (-flto and related options): Copy-edit.
1338
1339 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1340
1341         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
1342
1343 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1344
1345         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
1346         New patterns.
1347
1348 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1349
1350         * expr.h (move_by_pieces_ninsns): Declare.
1351         * expr.c (move_by_pieces_ninsns): Make external.
1352         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
1353         (mips_store_by_pieces_p): Likewise.
1354         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
1355         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
1356         * config/mips/mips.c (mips_move_by_pieces_p): New function.
1357         (mips_store_by_pieces_p): Likewise.
1358
1359 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1360
1361         * passes.c (register_one_dump_file): Free full_name.
1362
1363         * reload1.c (reload): Don't allocate reg_max_ref_width here.
1364         (calculate_elim_costs_all_insns): Free offsets_at and
1365         offsets_known_at at the end and clear the pointers.
1366
1367 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1368
1369         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
1370         this option introduced in r180739.
1371
1372 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1373
1374         PR target/51345
1375         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
1376         (tmake_file target=avr): Add avr/t-multilib.
1377
1378         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
1379         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
1380         * config/avr/genmultilib.awk: New file.
1381         * config/avr/t-multilib: New auto-generated file.
1382         * config/avr/multilib.h: New auto-generated file.
1383         * config/avr/t-avr (AVR_MCUS): New variable.
1384         (genopt.sh): Use it.
1385         (s-mlib): Depend on t-multilib.
1386         (t-multilib, multilib.h): New dependencies.
1387         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
1388         (MULTILIB_OPTIONS): Remove.
1389         (MULTILIB_MATCHES): Remove.
1390         (MULTILIB_DIRNAMES): Remove.
1391         (MULTILIB_EXCEPTIONS): Remove:
1392         * config/avr/genopt.sh: Don't use hard coded file name;
1393         pass AVR_MCUS from t-avr instead.
1394
1395 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1396
1397         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
1398
1399 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1400
1401         Implement light-weight DImode support.
1402         * config/avr/avr-dimode.md: New file.
1403         * config/avr/avr.md: Include it.
1404         (adjust_len): Add plus64, compare64.
1405         (HIDI): Remove code iterator.
1406         (code_stdname): New code attribute.
1407         (rotx, rotsmode): Remove DI.
1408         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
1409         as code iterator.
1410         * config/avr/avr-protos.h (avr_have_dimode): New.
1411         (avr_out_plus64, avr_out_compare64): New.
1412         * config/avr/avr.c (avr_out_compare): Handle DImode.
1413         (avr_have_dimode): New variable definition and initialization.
1414         (avr_out_compare64, avr_out_plus64): New functions.
1415         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
1416         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
1417         (avr_compare_pattern): Skip DImode comparisons.
1418
1419 2012-01-02  Revital Eres  <revital.eres@linaro.org>
1420
1421         * ddg.c (def_has_ccmode_p): New function.
1422         (add_cross_iteration_register_deps,
1423         create_ddg_dep_from_intra_loop_link): Call it.
1424
1425 2012-01-02  Richard Guenther  <rguenther@suse.de>
1426
1427         PR other/51679
1428         * invoke.texi (fassociative-math): Remove spurious paranthesis.
1429
1430 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1431
1432         * gcc.c (process_command): Update copyright notice dates.
1433         * gcov.c (print_version): Likewise.
1434         * gcov-dump.c (print_version): Likewise.
1435         * mips-tfile.c (main): Likewise.
1436         * mips-tdump.c (main): Likewise.
1437
1438 2012-01-01  Ira Rosen  <irar@il.ibm.com>
1439
1440         PR tree-optimization/51704
1441         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
1442         a use is inside the basic block or loop before accessing its vect info.
1443
1444 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
1445
1446         PR rtl-optimization/51069
1447         * cfgloopmanip.c (remove_path): Removing path making irreducible
1448         region unconditional makes BB part of the region.
1449
1450 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1451
1452         PR tree-optimization/51683
1453         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
1454         calls with side-effects.
1455         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
1456 \f
1457 Copyright (C) 2012 Free Software Foundation, Inc.
1458
1459 Copying and distribution of this file, with or without modification,
1460 are permitted in any medium without royalty provided the copyright
1461 notice and this notice are preserved.