gcc/ChangeLog

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