gcc/ChangeLog

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