gcc/ChangeLog

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