gcc/ChangeLog

   1 2008-01-16  Jakub Jelinek  <jakub@redhat.com>
   2         Richard Guenther  <rguenther@suse.de>
   3
   4         PR c/34668
   5         * gimplify.c (fold_indirect_ref_rhs): Rename to ...
   6         (gimple_fold_indirect_ref_rhs): ... this.
   7         (gimple_fold_indirect_ref): New function with foldings
   8         that preserve lvalueness.
   9         (gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
  10         * tree-flow.h (gimple_fold_indirect_ref): Declare.
  11         * tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
  12         to fold an INDIRECT_REF, fall back to the old use of
  13         fold_indirect_ref_1.
  14
  15 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
  16
  17         * tree-data-ref.c (subscript_dependence_tester_1): Call
  18         free_conflict_function.
  19         (compute_self_dependence): Same.
  20
  21 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
  22
  23         PR debug/34249
  24         * debug.h (dwarf2out_switch_text_section): Move declaration from ...
  25         * dwarf2out.c (dwarf2out_switch_text_section): ... here.  Make
  26         function global.
  27         * final.c (final_scan_insn) [NOTE_INSN_SWITCH_TEXT_SECTIONS]:
  28         Depending on dwarf2out_do_frame, call dwarf2out_switch_text_section
  29         for DWARF2_UNWIND_INFO targets.
  30
  31 2008-01-16  Richard Guenther  <rguenther@suse.de>
  32
  33         PR c/34768
  34         * c-typeck.c (common_pointer_type): Do not merge inconsistent
  35         type qualifiers for function types.
  36
  37 2008-01-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
  38
  39         * tree-parloops.c (gen_parallel_loop): Fix ommision of declaration for
  40         loop_iterator li from previous commit.
  41
  42 2008-01-15  Sebastian Pop  <sebastian.pop@amd.com>
  43
  44         * tree-parloops.c (gen_parallel_loop): Free loop bound estimations.
  45
  46 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
  47
  48         * tree-parloops.c (loop_has_blocks_with_irreducible_flag): New.
  49         (parallelize_loops): Don't parallelize irreducible components.
  50
  51 2008-01-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
  52
  53         PR c++/24924
  54         * c-opts (c_common_post_options): Do not enable CPP
  55         flag_pedantic_errors by default.
  56
  57 2008-01-14  Eric Botcazou  <ebotcazou@adacore.com>
  58
  59         PR rtl-optimization/31944
  60         * cse.c (remove_pseudo_from_table): New function.
  61         (merge_equiv_classes): Use above function to remove pseudo-registers.
  62         (invalidate): Likewise.
  63
  64 2008-01-13  Richard Guenther  <rguenther@suse.de>
  65
  66         PR middle-end/34601
  67         * emit-rtl.c (set_reg_attrs_for_decl_rtl): Use DECL_MODE
  68         instead of TYPE_MODE to deal with calls from expand_one_error_var.
  69
  70 2008-01-13  Uros Bizjak  <ubizjak@gmail.com>
  71
  72         * gcse.c (cprop_jump): Call validate_unshare_change instead of
  73         validate_change to unshare the source of the PC set.
  74
  75 2008-01-12  Jan Hubicka  <jh@suse.cz>
  76
  77         PR middle-end/32135
  78         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Do not construct
  79         references above array bounds.  This might trigger bounds checks for
  80         pointers to arrays.
  81
  82 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
  83
  84         * tree-ssa-ter.c (free_temp_expr_table): Free num_in_part and
  85         new_replaceable_dependencies.
  86
  87 2008-01-12  Doug Kwan  <dougkwan@google.com>
  88
  89         * c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
  90         instead of OPT_Wreturn_type in warning due to ignored return type
  91         qualifiers.
  92         * c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
  93         options included in -Wextra.
  94         * c.opt: New option -Wignored_qualifiers.
  95         * doc/invoke.texi (Warning Options, -Wextra): Add new option
  96         -Wignore_qualifiers.
  97         (-Wignored-qualifiers): Document.
  98         (-Wreturn-type): Remove description of functionality now handled
  99         by -Wignored-qualifiers.
 100
 101 2008-01-12  Eric Botcazou  <ebotcazou@adacore.com>
 102
 103         PR ada/33788
 104         * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Fold an existing
 105         NOP_EXPR if it is between integral types with the same precision.
 106
 107 2008-01-12  Jan Hubicka  <jh@suse.cz>
 108
 109         PR other/28023
 110         * invoke.texi (max-inline-recursive-depth): Fix default value.
 111
 112 2008-01-12  Zdenek Dvorak  <ook@ucw.cz>
 113
 114         * tree-parloops.c (transform_to_exit_first_loop): Cast nit to the
 115         correct type.
 116
 117 2008-01-11  Bob Wilson  <bob.wilson@acm.org>
 118
 119         * config/xtensa/xtensa.c (override_options): Set flag_shlib.
 120
 121 2008-01-11  James E. Wilson  <wilson@specifix.com>
 122
 123         PR target/26015
 124         * config/vax/elf.h (FRAME_POINTER_CFA_OFFSET): Define.
 125
 126 2008-01-11  Anatoly Sokolov <aesok@post.ru>
 127
 128         * config/avr/avr.c (expand_prologue, expand_epilogue): Don't
 129         save/restore frame pointer register and don't use 'call-prologues'
 130         optimization in function with "OS_task" attribute.
 131
 132 2008-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 133
 134         PR middle-end/31309
 135         * expr.c (copy_blkmode_from_reg): Use a mode suited to the size
 136         when copying to memory.
 137
 138 2008-01-11  Steven Bosscher  <stevenb.gcc@gmail.com>
 139
 140         PR rtl-optimization/30905
 141         * cfgcleanup.c: Include dce.h
 142         (crossjumps_occured): New global variable.
 143         (try_crossjump_bb): Exit loop after finding a fallthru edge.
 144         If something changed, set crossjumps_occured to true.
 145         (try_optimize_cfg): Clear crossjumps_occured at the beginning.
 146         Don't add/remove fake edges to exit here...
 147         (cleanup_cfg): ...but do it here, when crossjumping.
 148         Run a fast DCE when successful crossjumps occured in the latest
 149         iteration of try_optimize_cfg.
 150
 151 2008-01-11  Richard Guenther  <rguenther@suse.de>
 152
 153         * tree-ssa-sccvn.c (struct vn_binary_op_s): Move hashcode near opcode.
 154         (struct vn_unary_op_s): Likewise.
 155         (vn_reference_insert): Free old reference on hash collision.
 156
 157 2008-01-10  Raksit Ashok  <raksit@google.com>
 158
 159         PR rtl-optimization/27971
 160         * combine.c (find_split_point): Split PLUS expressions which are
 161         inside a MEM rtx, and whose first operand is complex.
 162
 163 2008-01-10  DJ Delorie  <dj@redhat.com>
 164
 165         * config/m32c/m32c.c (m32c_hard_regno_nregs_1): Renamed from...
 166         (m32c_hard_regno_nregs): ...this, which is now a wrapper.
 167         (m32c_hard_regno_ok): Call the underlying function.
 168
 169 2008-01-10  Richard Guenther  <rguenther@suse.de>
 170
 171         PR middle-end/34683
 172         * tree-cfg.c (tree_merge_blocks): Do not go through the
 173         full-blown folding and stmt updating path if we just deal
 174         with virtual operands.
 175         * tree-ssa-copy.c (may_propagate_copy): Do not short-cut
 176         test for abnormal SSA_NAMEs.
 177
 178 2008-01-10  Andreas Krebbel  <krebbel1@de.ibm.com>
 179
 180         PR middle-end/34641
 181         * reload.c (push_reload): Add assertions.  All constants from
 182         reg_equiv_constant should have been used for replacing the respective
 183         pseudo earlier.
 184         (find_reloads_address): Invoke find_reloads_address_part for
 185         constant taken from the reg_equiv_constant array.
 186
 187 2008-01-10  Steven Bosscher  <stevenb.gcc@gmail.com>
 188
 189         * tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
 190         field (valnum) the first in the struct.  Replace bools with
 191         unit bit fields.
 192
 193 2008-01-10  Richard Guenther  <rguenther@suse.de>
 194
 195         PR tree-optimization/34651
 196         * tree-sra.c (sra_build_assignment): Sanitize.  Use the correct
 197         types and ordering for masking and converting.
 198
 199 2008-01-09  Sebastian Pop  <sebastian.pop@amd.com>
 200
 201         PR tree-optimization/34017
 202         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Generate code
 203         also for PHI_NODE expressions.
 204
 205 2008-01-09  Jan Hubicka  <jh@suse.cz>
 206
 207         PR tree-optimization/34708
 208         * tree-inline.c (estimate_num_insns_1): Compute cost of SWITCH_EXPR
 209         based on number of case labels.
 210         (init_inline_once): Remove switch_cost.
 211         * tree-inline.h (eni_weights_d): Remove switch_cost.
 212
 213 2008-01-09  Richard Guenther  <rguenther@suse.de>
 214         Andrew Pinski  <andrew_pinski@playstation.sony.com>
 215
 216         PR middle-end/30132
 217         * gimplify.c (gimplify_cond_expr): Do not create an addressable
 218         temporary if an rvalue is ok or an lvalue is not required.
 219
 220 2008-01-09  Richard Guenther  <rguenther@suse.de>
 221
 222         PR middle-end/34458
 223         * tree-data-ref.c (initialize_matrix_A): Use tree_low_cst,
 224         adjust return type.
 225
 226 2008-01-09  Richard Guenther  <rguenther@suse.de>
 227
 228         PR middle-end/34679
 229         * tree.c (host_integerp): Check for sizetype only if the
 230         type is an integer type.
 231
 232 2008-01-09  Steven Bosscher  <stevenb.gcc@gmail.com>
 233
 234         PR debug/26364
 235         * opts.c (decode_options): Disable inlining of functions called
 236         once if not in unit-at-a-time mode.
 237
 238 2008-01-09  Alexandre Oliva  <aoliva@redhat.com>
 239
 240         * Makefile.in (dse.o): Remove duplicate $(RECOG_H) dependency.
 241
 242 2008-01-08  Richard Guenther  <rguenther@suse.de>
 243
 244         PR middle-end/31863
 245         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Bail
 246         out early if the result will be unused.
 247
 248 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
 249
 250         PR target/34709
 251         Revert:
 252
 253         2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 254         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
 255         for TARGET_RECIP.
 256
 257 2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
 258
 259         * config/i386/i386.c (k8_cost, amdfam10_cost): Branch costs
 260         for vectorization tuned.
 261
 262 2008-01-08  Richard Guenther  <rguenther@suse.de>
 263
 264         PR tree-optimization/34683
 265         * tree-ssa-operands.c (operand_build_cmp): Export.
 266         * tree-ssa-operands.h (operand_build_cmp): Declare.
 267         * tree-vn.c (vuses_compare): Remove.
 268         (sort_vuses): Use operand_build_cmp.
 269         (sort_vuses_heap): Likewise.
 270         * tree-ssa-sccvn.c (vuses_to_vec): Use VEC_reserve, not VEC_alloc
 271         to re-use old VEC if available.  Do not sort already sorted VUSEs.
 272         (vdefs_to_vec): Do not sort already sorted VDEFs.
 273
 274 2008-01-08  Jakub Jelinek  <jakub@redhat.com>
 275
 276         PR middle-end/34694
 277         * omp-low.c (copy_var_decl): Copy also DECL_SOURCE_LOCATION.
 278
 279 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
 280
 281         PR target/34702
 282         * doc/invoke.texi (i386 and x86-64 Options) [mrecip]: Document
 283         limitations of reciprocal sequences on x86 targets.
 284
 285 2008-01-08  Richard Guenther  <rguenther@suse.de>
 286
 287         PR tree-optimization/34683
 288         * tree-flow-inline.h (var_ann): Remove overzealous asserts.
 289
 290 2008-01-07  Jakub Jelinek  <jakub@redhat.com>
 291
 292         PR target/34622
 293         * config/darwin.c (darwin_mergeable_string_section): Don't use
 294         .cstring if int_size_in_bytes != TREE_STRING_LENGTH.
 295
 296 2008-01-07  Uros Bizjak  <ubizjak@gmail.com>
 297
 298         PR target/34682
 299         * config/i386/i386.md (neg<mode>2): Rename from negsf2, negdf2 and
 300         negxf2.  Macroize expander using X87MODEF mode iterator.  Change
 301         predicates of op0 and op1 to register_operand.
 302         (abs<mode>2): Rename from abssf2, absdf2 and negxf2.  Macroize
 303         expander using X87MODEF mode iterator.  Change predicates of
 304         op0 and op1 to register_operand.
 305         ("*absneg<mode>2_mixed", "*absneg<mode>2_sse"): Rename from
 306         corresponding patterns and macroize using MODEF macro.  Change
 307         predicates of op0 and op1 to register_operand and remove
 308         "m" constraint. Disparage "r" alternative with "!".
 309         ("*absneg<mode>2_i387"): Rename from corresponding patterns and
 310         macroize using X87MODEF macro.  Change predicates of op0 and op1
 311         to register_operand and remove "m" constraint.  Disparage "r"
 312         alternative with "!".
 313         (absneg splitter with memory operands): Remove.
 314         ("*neg<mode>2_1", "*abs<mode>2_1"): Rename from corresponding
 315         patterns and macroize using X87MODEF mode iterator.
 316         * config/i386/sse.md (negv4sf2, absv4sf2, neg2vdf2, absv2df2):
 317         Change predicate of op1 to register_operand.
 318         * config/i386/i386.c (ix86_expand_fp_absneg_operator): Remove support
 319         for memory operands.
 320
 321 2008-01-07  Nathan Froyd  <froydnj@codesourcery.com>
 322
 323         * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add clause for mcpu=8548.
 324
 325 2008-01-07  Richard Guenther  <rguenther@suse.de>
 326
 327         * basic-block.h (struct edge_def): Pair dest_idx with goto_locus
 328         fields.
 329
 330 2008-01-07  Richard Guenther  <rguenther@suse.de>
 331
 332         PR tree-optimization/34683
 333         * tree-ssa-sccvn.c (vuses_to_vec): Pre-allocate the vector of
 334         VOPs of the needed size to save memory.  Use VEC_quick_push
 335         to save compile-time.
 336         (vdefs_to_vec): Likewise.
 337
 338 2008-01-07  Sa Liu  <saliu@de.ibm.com>
 339
 340         * config/spu/spu.md (divdf3): Genetate inline code for double
 341         division.  The implementation doesn't handle INF or NAN, therefore it
 342         only applies when -ffinite-math-only is given.
 343
 344 2008-01-06  Paolo Carlini  <pcarlini@suse.de>
 345
 346         PR libstdc++/34680
 347         * c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
 348         * doc/cpp.texi ([Common Predefined Macros]): Document.
 349
 350 2008-01-06  Uros Bizjak  <ubizjak@gmail.com>
 351
 352         * config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
 353         order to use commutative addition instead of subtraction.
 354
 355 2008-01-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 356             Mircea Namolaru  <namolaru@il.ibm.com>
 357             Vladimir Yanovsky  <yanov@il.ibm.com>
 358             Revital Eres  <eres@il.ibm.com>
 359
 360         PR tree-optimization/34263
 361         * tree-outof-ssa.c (process_single_block_loop_latch,
 362         contains_tree_r): New functions.
 363         (analyze_edges_for_bb): Call process_single_block_loop_latch
 364         function to empty single-basic-block latch block if possible.
 365
 366 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 367
 368         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
 369         for TARGET_RECIP.
 370         (ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.
 371
 372 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
 373
 374         * c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR.
 375
 376 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
 377
 378         * config/mips/mips.c (mips_in_small_data_p): Reinstate size > 0 check.
 379
 380 2008-01-05  Jakub Jelinek  <jakub@redhat.com>
 381
 382         PR tree-optimization/34618
 383         * tree-outof-ssa.c (create_temp): Copy over DECL_GIMPLE_REG_P
 384         flag from T.
 385
 386 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
 387
 388         PR target/34673
 389         * config/i386/i386.c (ix86_emit_swsqrtsf): Swap input operands
 390         in the call to gen_rtx_NE.  Remove unneeded VECTOR_MODE_P check.
 391         Update copyright year.
 392
 393         * config/i386/i386.md (rsqrtsf2): Enable for TARGET_SSE_MATH.
 394         Update copyright year.
 395         * config/i386/sse.md (rsqrtv4sf2): Ditto. Unconditionally expand
 396         using NR fixup.
 397
 398 2008-01-05  Zhouyi Zhou  <zhouzhouyi@FreeBSD.org>
 399
 400         * tree-vrp.c (find_conditional_asserts): Remove redundant check that
 401         edge does not point to current bb before changing need_assert.
 402
 403 2008-01-04  Richard Guenther  <rguenther@suse.de>
 404
 405         PR middle-end/34029
 406         * tree-cfg.c (verify_expr): Do not look inside ADDR_EXPRs
 407         for verifying purposes if they are is_gimple_min_invariant.
 408
 409 2008-01-04  Aldy Hernandez  <aldyh@redhat.com>
 410
 411         PR tree-optimization/34448
 412         PR tree-optimization/34465
 413         * gimplify.c (gimplify_init_constructor): Add new parameter
 414         notify_temp_creation.  Use it.
 415         (gimplify_modify_expr_rhs): Take volatiles into account when
 416         optimizing constructors.
 417         Do not optimize constructors if gimplify_init_constructor will dump to
 418         memory.
 419         * gcc.dg/tree-ssa/pr32901.c: Tests const volatiles.
 420         * gcc.c-torture/compile/pr34448.c: New.
 421
 422 2008-01-04  Jakub Jelinek  <jakub@redhat.com>
 423
 424         PR gcov-profile/34609
 425         * tree-inline.c (declare_return_variable): Set TREE_ADDRESSABLE on
 426         return_slot if result is TREE_ADDRESSABLE.
 427
 428 2008-01-04  Richard Sandiford  <rsandifo@nildram.co.uk>
 429
 430         * config/mips/mips.md (sqrt_condition): Tweak comment.
 431         (recip_condition): Likewise.  Require TARGET_FLOAT64 for DFmode.
 432
 433 2008-01-03  Tom Tromey  <tromey@redhat.com>
 434
 435         PR c/34457
 436         * c-common.c (c_type_hash): Handle VLAs.
 437
 438 2008-01-03  Jan Hubicka  <jh@suse.cz>
 439
 440         PR tree-optimization/31081
 441         * tree-inline.c (remap_ssa_name): Initialize uninitialized SSA vars to
 442         0 when inlining and not inlining to first basic block.
 443         (remap_decl): When var is initialized to 0, don't set default_def.
 444         (expand_call_inline): Set entry_bb.
 445         * tree-inline.h (copy_body_data): Add entry_bb.
 446
 447 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
 448
 449         PR c++/34619
 450         * cgraphunit.c (cgraph_build_static_cdtor): set_cfun back to NULL
 451         before returning.
 452
 453         PR tree-optimization/29484
 454         * tree-inline.c (inline_forbidden_p_2): New function.
 455         (inline_forbidden_p): Disallow inlining if some static var
 456         has an address of a local LABEL_DECL in its initializer.
 457         * doc/extend.texi (Labels as Values): Document &&foo behaviour
 458         vs. inlining.
 459
 460 2008-01-03  Sebastian Pop  <sebastian.pop@amd.com>
 461
 462         PR tree-optimization/34635
 463         * tree-data-ref.c (add_other_self_distances): Make sure that the
 464         evolution step is constant.
 465
 466 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
 467
 468         PR middle-end/34608
 469         * omp-low.c (expand_omp_parallel): Purge dead EH edges in the child fn.
 470
 471 2008-01-02  Richard Sandiford  <rsandifo@nildram.co.uk>
 472
 473         * tree-sra.c (scalarize_init): Insert the generate_element_init
 474         statements after the generate_element_zero statements.
 475
 476 2008-01-02  Richard Guenther  <rguenther@suse.de>
 477
 478         PR middle-end/34093
 479         PR middle-end/31976
 480         * tree-ssa-operands.c (ssa_operand_alloc): Also allocate a buffer
 481         for very large number of operands instead of ICEing.
 482
 483 2008-01-02  Arthur Norman <acn1@cam.ac.uk>
 484
 485         PR target/34013
 486         * gcc/config/i386/i386.c (ix86_expand_prologue): Save red-zone
 487         while stack probing.
 488
 489 2008-01-01  Douglas Gregor  <doug.gregor@gmail.com>
 490
 491         * c-opts.c (sanitize_cpp_opts): Don't warn about "long long" when
 492         in C++0x mode.
 493
 494 2008-01-01  Volker Reichelt  <v.reichelt@netcologne.de>
 495
 496         PR libmudflap/26442
 497         * tree-mudflap.c (mx_register_decls): Guard warning by
 498         !DECL_ARTIFICIAL check.
 499
 500 2008-01-01  Jakub Jelinek  <jakub@redhat.com>
 501
 502         * config/i386/sse.md (sse5_pperm, sse5_pperm_pack_v2di_v4si,
 503         sse5_pperm_pack_v4si_v8hi, sse5_pperm_pack_v8hi_v16qi,
 504         sse5_perm<mode>): Fix constraints.