gcc/ChangeLog

   1 2006-03-13  Jeff Law  <law@redhat.com>
   2
   3         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
   4         virtual operands are interesting.
   5         (vrp_visit_stmt): Corresponding changes.
   6
   7 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
   8
   9         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
  10         of RETS.
  11         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
  12         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
  13         * config/bfin/crti.S: Use it instead of __PIC__.
  14         * config/bfin/crtn.S: Likewise.
  15
  16         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
  17         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
  18         not if flag_pic.
  19         Lose 'G' modifier for call operand.
  20         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
  21         recognize 'G' modifier.
  22
  23 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
  24
  25         PR middle-end/18859
  26         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
  27         * stmt.c (expand_case): Likewise.
  28
  29 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
  30
  31         PR rtl-optimization/26254
  32         * loop-invariant.c (seq_insns_valid_p): New function.
  33         (move_invariant_reg): Only emit new code if it is valid.
  34
  35 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
  36
  37         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
  38         Removed.
  39         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
  40         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
  41         (commit_one_edge_insertion): Do not look for loop notes.
  42
  43 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
  44
  45         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
  46         flag_test_coverage out of loop.
  47
  48 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
  49
  50         * final.c (shorten_branches): Remove outdated comment, and turn
  51         the if branch that guards it to continue.
  52
  53 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
  54
  55         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
  56         * cfgloop.h (struct loop): Remove unused fields.
  57
  58 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
  59
  60         * doc/invoke.texi (-fdump-rtl-loop): Remove.
  61         (-dL, -fdump-rtl-loop2): Update the dump file names
  62
  63         * doc/invoke.texi: Update dump file names.
  64
  65 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
  66
  67         * predict.c (estimate_probability): Remove.
  68         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
  69         * basic-block.h (estimate_probability): Remove prototype.
  70         * passes.c (finish_optimization_passes): Dump branch prediction or
  71         profiling heuristics to the .profile tree dump.
  72         (init_optimization_passes): Unqueue pass_branch_prob.
  73
  74         * doc/invoke.texi (-fdump-rtl-bp): Remove.
  75
  76 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
  77
  78         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
  79         * rtl.h (LABEL_NEXTREF): Remove field accessor.
  80
  81 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
  82
  83         * function.h (frame_offset_overflow): Declare.
  84         * function.c (frame_offset_overflow): New function.
  85         (assign_stack_local_1): Call it to detect that the offset overflows.
  86         * cfgexpand.c (alloc_stack_frame_space): Likewise.
  87
  88 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
  89
  90         * config/sh/sh.c: Include alloc-pool.h.
  91         (label_ref_list_pool): New alloc pool.
  92         (label_ref_list_t): New type for lists of labels.
  93         (struct pool_node): Make wend a label_ref_list_t.
  94         (add_constant): Use the new type, eradicate LABEL_NEXTREF
  95         references.
  96         (dump_table): Likewise.
  97         (sh_reorg): Set up the alloc pool before using add_constant and
  98         dump_table, and destroy it when finishing.
  99
 100 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
 101
 102         * config/mips/mips.c: Remove redundant comment.
 103
 104 2006-03-10  Jason Merrill  <jason@redhat.com>
 105
 106         PR c/26004
 107         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
 108         the target was declared 'register'.
 109
 110 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
 111
 112         * genpreds.c (write_insn_constraint_len): Change definition of
 113         insn_constraint_len to return size_t to match the declaration.
 114
 115 2006-03-10  DJ Delorie  <dj@redhat.com>
 116
 117         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
 118         start at zero.
 119         (m32c_expand_insv): Fix test for an AND mask.
 120
 121 2006-03-10  Richard Guenther  <rguenther@suse.de>
 122
 123         PR middle-end/26565
 124         * builtins.c (get_pointer_alignment): Handle component
 125         references for field alignment.
 126
 127 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
 128
 129         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
 130         when building with libgloss.
 131         (sh*elf): Implement --without-fp option.
 132         (sh64-superh-linux*): Don't multilib.
 133
 134 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
 135
 136         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
 137
 138 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
 139
 140         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
 141         Set it when one of the replacement functions returned true.
 142         Return TODO_cleanup_cfg if cfgchanged is true.
 143         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
 144
 145 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
 146
 147         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
 148         instead of gen_lowpart.
 149
 150 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
 151
 152         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
 153         interface.
 154         (mips_output_order_conditional_branch): Declare.
 155         * config/mips/mips.h (MIPS_BRANCH): New macro.
 156         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
 157         for the comparison.  Use gen_condjump.
 158         (mips_output_conditional_branch): Rework interface to take the
 159         asm templates for a direct branch and the inverse of a direct branch.
 160         (mips_output_order_conditional_branch): New function.
 161         (mips_builtin_branch_and_move): New function.
 162         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
 163         branch condition.  Use gen_single_cc as the condition for
 164         __builtin_mips_upper_* or __builtin_mips_lower_*.
 165         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
 166         Use VOIDmode for the branch condition.
 167         * config/mips/predicates.md (order_operator): New predicate.
 168         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
 169         (branch_fp): Rename to...
 170         (*branch_fp): ...this.  Remove mode from comparison operator.
 171         Use new mips_output_conditional_branch interface.
 172         (branch_fp_inverted): Rename to...
 173         (*branch_fp_inverted): ...this and update as for *branch_fp.
 174         (*branch_zero<mode>): Rename to...
 175         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
 176         Use mips_output_order_conditional_branch.  Only accept ordered
 177         comparisons.
 178         (*branch_zero<mode>_inverted): Rename to...
 179         (*branch_order<mode>_inverted): ...this and update as for
 180         *branch_order<mode>.
 181         (*branch_equality<mode>): Accept zero as the second operand to
 182         the equality operator.  Use the new mips_output_conditional_branch
 183         interface.
 184         (*branch_equality<mode>_inverted): Likewise.
 185         (condjump): New expander.
 186         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
 187         operator.
 188         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
 189         (bc1any2t, bc1any2f): Likewise.
 190         (single_cc): New expander.
 191         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
 192
 193 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
 194
 195         * doc/md.texi: Update documentation of MIPS constraints.
 196         * config/mips/constraints.md: New file.
 197         * config/mips/mips.md: Include it.
 198         * config/mips/mips.c (mips_char_to_class): Delete.
 199         (override_options): Don't initialize mips_char_to_class.
 200         * config/mips/mips.h (mips_char_to_class): Delete.
 201         (REG_CLASS_FROM_LETTER): Delete.
 202         (CONST_OK_FOR_LETTER_P): Delete.
 203         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
 204         (EXTRA_CONSTRAINT_Y): Delete.
 205         (EXTRA_CONSTRAINT_STR): Delete.
 206         (CONSTRAINT_LEN): Delete.
 207         (EXTRA_MEMORY_CONSTRAINT): Delete.
 208
 209 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
 210
 211         * tree-cfg.c (move_block_to_fn): Remove the statements from the
 212         original fn's eh regions.
 213
 214 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
 215
 216         * fold-const.c (build_range_check): Make sure to use a valid type to
 217         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
 218         transformation.
 219
 220         (range_predecessor): New static function.
 221         (range_successor): Likewise.
 222         (merge_ranges): Use them to compute predecessors and successors of
 223         range bounds.
 224
 225 2006-03-09  Roger Sayle  <roger@eyesopen.com>
 226
 227         PR middle-end/26561
 228         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
 229         X op C3, consider whether C3 overflows towards +Inf or -Inf.
 230
 231 2006-03-08  DJ Delorie  <dj@redhat.com>
 232
 233         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
 234         (addpsi3): Expand to include memory operands.  Remove
 235         reload-specific splits.
 236         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
 237         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
 238         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
 239         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
 240         (shift1_qi, shift1_hi, insv): New.
 241         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
 242         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
 243         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
 244         cond_to_int): New.
 245         * config/m32c/m32c-protos.h: Update as needed.
 246         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
 247         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
 248         Fail for unrecognized R* constraints.
 249         (m32c_cannot_change_mode_class): Be more picky about pseudos.
 250         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
 251         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
 252         Add Sp constraint.
 253         (m32c_init_libfuncs): New.
 254         (m32c_legitimate_address_p): Add debug wrapper.
 255         (m32c_rtx_costs): New.
 256         (m32c_address_cost): New.
 257         (conversions): Add 'B' prefix.
 258         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
 259         operands, or word regnames for QI operands.  'B' prints bit
 260         position.
 261         (m32c_expand_setmemhi): New.
 262         (m32c_expand_movmemhi): New.
 263         (m32c_expand_movstr): New.
 264         (m32c_expand_cmpstr): New.
 265         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
 266         (m32c_expand_neg_mulpsi3): Handle non-ints.
 267         (m32c_cmp_flg_0): New.
 268         (m32c_expand_movcc): New.
 269         (m32c_expand_insv): New.
 270         (m32c_scc_pattern): New.
 271         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
 272         a0/a1 out of SIregs.
 273         (STORE_FLAG_VALUE): New.
 274         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
 275         code macros.
 276         (no_insn): New.
 277         * config/m32c/mov.md: Make constraints more liberal.
 278         (zero_extendqihi2): Optimize r0/r1 case.
 279         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
 280         * config/m32c/predicates.md (m32c_any_operand): New.
 281         (m32c_nonimmediate_operand): New.
 282         (m32c_hl_operand): New.
 283         (m32c_r3_operand): New.
 284         (ap_operand): New.
 285         (ma_operand): New.
 286         (memsym_operand): New.
 287         (memimmed_operand): New.
 288         (a_qi_operand): New.
 289         (m32c_eqne_operator): New.
 290         (m32c_1bit8_operand): New.
 291         (m32c_1bit16_operand): New.
 292         (m32c_1mask8_operand): New.
 293         (m32c_1mask16_operand): New.
 294         * config/m32c/blkmov.md: New file.
 295         * config/m32c/t-m32c (MD_FILES): Add blkmov.
 296
 297 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
 298
 299         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
 300         unsigned to fix signed/unsigned comparison issue in
 301         DWARF2_FRAME_REG_OUT.
 302         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
 303         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
 304
 305         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
 306         of ptr into the ENABLE_CHECKING section.
 307
 308 2006-03-08  Jeff Law  <law@redhat.com>
 309
 310         * tree-vrp.c (infer_value_range): Only count pointer uses
 311         and dereferences if -fdelete-null-pointer-checks is enabled.
 312
 313         * tree-vrp.c (find_assert_locations): Infer value ranges for
 314         single use pointers, but do not create ASSERT_EXPRs for them.
 315         When a non-null range is inferred for a pointer, backwards
 316         propagate that range to other equivalent pointers through the
 317         use-def chain.
 318
 319 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
 320
 321         PR bootstrap/26500
 322         * Makefile.in (dvi, html, install-info): Invoke the corresponding
 323         language hook targets.
 324         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
 325         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
 326         if language hook targets were missing.
 327
 328 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
 329
 330         * tree-ssa-opfinalize.h: Removed.
 331         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
 332         dependency.
 333         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
 334         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
 335         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
 336         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
 337         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
 338         finalize_ssa_v_must_def_ops): New.
 339
 340 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
 341
 342         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
 343         block as parameter.
 344
 345 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
 346
 347         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
 348
 349         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
 350         addresses with offsets; reorganize.
 351
 352         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
 353         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
 354         (expand_builtin_init_dwarf_reg_sizes): Likewise.
 355
 356 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
 357
 358         PR target/26588
 359         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
 360
 361 2006-03-08  Ben Elliston  <bje@au.ibm.com>
 362
 363         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
 364
 365 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
 366
 367         PR gomp/26238
 368         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
 369         expansion.
 370
 371 2006-03-07  Richard Guenther  <rguenther@suse.de>
 372
 373         PR tree-optimization/26587
 374         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
 375
 376 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
 377
 378         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
 379
 380 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
 381
 382         * hooks.c (hook_bool_mode_rtx_true): New function.
 383         * hooks.h (hook_bool_mode_rtx_true): Declare.
 384         * toplev.c (compile_file): Call output_shared_constant_pool.
 385         * varasm.c (shared_constant_pool): New variable.
 386         (assemble_start_function, assemble_end_function): Remove arguments
 387         from call to output_constant_pool.
 388         (create_constant_pool): New function, split out from...
 389         (init_varasm_status): ...here.
 390         (force_const_mem): Choose between the shared and per-function constant
 391         pools.  Set current_function_uses_const_pool when reusing old entries
 392         as well as when creating new ones.
 393         (mark_constant): Ignore data argument.
 394         (mark_constants): Remove pool argument.
 395         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
 396         to decide whether the function uses a constant pool.
 397         (output_constant_pool_contents): New function, split out from...
 398         (output_constant_pool): ...here.
 399         (output_shared_constant_pool): New function.
 400         (init_varasm_once): Initialize shared_constant_pool.
 401         * output.h (output_constant_pool): Delete.
 402         (output_shared_constant_pool): Declare.
 403         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
 404         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
 405
 406 2006-03-06  Nick Clifton  <nickc@redhat.com>
 407
 408         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
 409         flag_strength_reduce.
 410
 411 2006-03-06  Ben Elliston  <bje@au.ibm.com>
 412
 413         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
 414         x86_64-*-linux* configurations.
 415
 416         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
 417         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
 418
 419 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
 420
 421         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
 422         Remove.
 423         * basic-block.h: Remove the extern for
 424         rediscover_loops_after_threading.
 425
 426         * cfgloop.c (cancel_loop): Make it static.
 427         * cfgloop.h: Remove the prototype for cancel_loop.
 428
 429         * flow.c (recompute_reg_usage): Make it static.
 430         * rtl.h: Remove the prototype for recompute_reg_usage.
 431
 432         * function.c (use_return_register): Make it static.
 433         * function.h: Remove the prototype.
 434
 435 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
 436
 437         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
 438         Remove.
 439         * recog.h: Remove the prototype for
 440         validate_change_maybe_volatile.
 441
 442 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
 443
 444         * rtlanal.c (replace_reg): Remove.
 445         * rtl.h: Remove the prototype for replace_reg.
 446
 447 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
 448
 449         * regclass.c (reg_scan_update): Remove.
 450         (reg_scan_mark_refs): Remove the last argument.
 451         * rtl.h: Remove the prototype for reg_scan_update.
 452
 453 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
 454
 455         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
 456         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
 457         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
 458         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
 459         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
 460         loop-invariant.c, omp-low.c, opts.c, passes.c,
 461         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
 462         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
 463         tree-ssa-structalias.c, tree-ssa-threadedge.c,
 464         tree-ssa-threadupdate.c, tree-vect-patterns.c,
 465         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
 466         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
 467
 468 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
 469
 470         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
 471         * dwarf2out.h: Remove the prototype for
 472         dwarf2out_add_library_unit_info.
 473
 474 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
 475
 476         * tree.c (add_var_to_bind_expr): Remove.
 477         * tree.h: Remove the prototype for add_var_to_bind_expr.
 478
 479 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
 480
 481         * regclass.c (n_non_fixed_regs): Remove.
 482         (init_reg_sets_1, globalize_reg): Remove all uses of
 483         n_non_fixed_regs.
 484         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
 485
 486 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
 487
 488         * rtlanal.c (insns_safe_to_move_p): Remove.
 489         * rtl.h: Remove the prototype for insns_safe_to_move_p.
 490
 491 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
 492
 493         * expmed.c (expand_mult_add): Remove.
 494         * expr.h: Remove the prototype for expand_mult_add.
 495
 496 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
 497
 498         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
 499         and REG_SAVED_VAL_EXP constants.
 500         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
 501         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
 502         Handle regs stored by value.
 503         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
 504         (execute_cfa_program): Handle DW_CFA_val_offset,
 505         DW_CFA_val_offset_sf and DW_CFA_val_expression.
 506         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
 507         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
 508         (uw_install_context_1): Handle target regs stored by value.
 509
 510 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
 511
 512         * tree-sra.c (tree_sra): Return todoflags;
 513         (generate_one_element): Set TODO_update_smt_usage if needed.
 514         (pass_sra): Remove TODO_update_smt_usage.
 515         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
 516         parameter.
 517         (tree_ssa_forward_propagate_single_use_vars): Return
 518         TODO_update_smt_usage if we need to update SMT usage.
 519         (pass_forwprop): Remove TODO_update_smt_usage.
 520
 521 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
 522
 523         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
 524         (correct_use_link): Remove reference to get_stmt_operands.
 525         (update_stmt_operands): Likewise.
 526         (get_modify_expr_operands): New function factored out of
 527         parse_ssa_operands and get_expr_operands.
 528         Try to create V_MUST_DEFs for LHS by default.
 529         (get_expr_operands) <case MODIFY_EXPR>: Call
 530         get_modify_expr_operands.
 531         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
 532         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
 533         (parse_ssa_operands) <case MODIFY_EXPR>: Call
 534         get_modify_expr_operands.
 535
 536 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
 537
 538         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
 539         * tree-flow.h: Remove the prototype for
 540         referenced_var_lookup_if_exists.
 541
 542 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
 543
 544         PR rtl-optimization/26345
 545         PR target/19061
 546         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
 547
 548 2006-03-03  Roger Sayle  <roger@eyesopen.com>
 549
 550         PR tree-optimization/26524
 551         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
 552         fold_convert to create a constant of the appropriate type.
 553
 554 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
 555
 556         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
 557         SYMBOL_REF_IN_BLOCK_P.
 558         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
 559         of SYMBOL_FLAG_IN_BLOCK.
 560         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
 561         instead of SYMBOL_REF_IN_BLOCK_P.
 562         * explow.c (use_anchored_address): Likewise.
 563         * rtl.c (rtx_size): Likewise.
 564         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
 565         instead of SYMBOL_FLAG_IN_BLOCK.
 566         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
 567         SYMBOL_REF_IN_BLOCK_P.
 568         (assemble_variable): Likewise.
 569         (output_constant_def_contents): Likewise.
 570         (output_constant_pool): Likewise.
 571         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
 572         instead of SYMBOL_FLAG_IN_BLOCK.
 573         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
 574         SYMBOL_REF_IN_BLOCK_P.
 575         (SYMBOL_REF_BLOCK): Likewise.
 576         (SYMBOL_REF_OFFSET): Likewise.
 577         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
 578         SYMBOL_REF_IN_BLOCK_P.
 579         (SYMBOL_FLAG_IN_BLOCK): Replace with...
 580         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
 581         (SYMBOL_REF_IN_BLOCK_P): Replace with...
 582         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
 583
 584 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
 585
 586         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
 587
 588 2006-03-02  Roger Sayle  <roger@eyesopen.com>
 589
 590         * simplify-rtx.c (simplify_unary_operation): When simplifying
 591         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
 592         that we perform the right shift in the appropriate mode, and
 593         then extend or truncate the result to requested mode.
 594
 595 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
 596
 597         * gengtype.c (main): Handle double_int type.
 598         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
 599         * double-int.c: New file.
 600         * double-int.h: New file.
 601         * system.h: Include doubleint.h.
 602         * Makefile.in (SYSTEM_H): Include double-int.h.
 603         (double-int.o): Add.
 604
 605 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
 606
 607         PR bootstrap/26478
 608         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
 609         copying over it.
 610
 611 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
 612
 613         * tree-vrp.c (remove_range_assertions): Do not update statements
 614         unnecessarily.
 615
 616 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
 617
 618         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
 619         cleanup.
 620         * gcse.c (rest_of_handle_gcse): Ditto.
 621         * except.c (gate_handle_eh): Ditto.
 622         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
 623         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
 624
 625 2006-03-02  Eric Christopher  <echristo@apple.com>
 626
 627         * config/i386/i386.c (machopic_output_stub): Add indirection to
 628         jump.
 629
 630 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
 631
 632         * loop.c: Removed.
 633
 634 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
 635
 636         Sun Niagara specific optimizations.
 637         * config.gcc: Recognize niagara as target.
 638         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
 639         (TARGET_CPU_niagara): Define.
 640         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
 641         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
 642         (CPP_CPU_SPEC): Handle -mcpu=niagara.
 643         (ASM_CPU_SPEC): Likewise.
 644         (PROCESSOR_NIAGARA): New enum entry.
 645         (REGISTER_MOVE_COST): Handle Niagara.
 646         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
 647         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
 648         (sparc_override_options): Recognize "niagara", set appropriate
 649         default MASK_* values for it, and align functions to 32-bytes
 650         by default just like ULTRASPARC/ULTRASPARC3.
 651         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
 652         (sparc64_initialize_trampoline): Likewise.
 653         (sparc_use_sched_lookahead): Use zero for niagara.
 654         (sparc_issue_rate): Use one for niagara.
 655         * config/sparc/niagara.md: New file.
 656         * config/sparc/sparc.md: Include it.
 657         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
 658         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
 659         when default cpu is niagara.
 660         (CPP_CPU_SPEC): Handle -mcpu=niagara.
 661         (ASM_CPU_SPEC): Likewise.
 662         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
 663         when default cpu is niagara.
 664         (ASM_CPU_SPEC): Handle -mcpu=niagara.
 665         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
 666         just like v9/ultrasparc/ultrasparc3.
 667         * doc/invoke.texi: Add documentation for "niagara" and improve
 668         existing documentation for ultrasparc variants.
 669
 670 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
 671
 672         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
 673
 674 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
 675
 676         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
 677         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
 678         and say that only one is needed.
 679         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
 680         * target.h (have_switchable_bss_sections): New hook.
 681         * explow.c (use_anchored_address): Check that the symbol is in a block.
 682         * varasm.c (tls_comm_section, comm_section, lcomm_section)
 683         (bss_noswitch_section): New variables.
 684         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
 685         (get_noswitch_section): New function.
 686         (get_block_for_section): Allow SECT to be null.
 687         (unlikely_text_section_p): Use SECTION_STYLE.
 688         (bss_initializer_p): New function.
 689         (get_variable_section): Move earlier in file.  Take a new argument,
 690         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
 691         Return one of the new *_sections in such cases.
 692         (get_block_for_decl): New function, extracting some logic from
 693         use_blocks_for_decl_p.
 694         (change_symbol_section): Remove in favor of...
 695         (change_symbol_block): ...this new function.
 696         (use_blocks_for_decl_p): Remove checks now performed by
 697         get_block_for_decl.
 698         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
 699         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
 700         (emit_local, emit_bss, emit_common): ...these new functions.
 701         Return true if the alignment was honored.
 702         (emit_tls_common): New function.
 703         (asm_emit_uninitialised): Delete.
 704         (assemble_variable_noswitch): New function, split out from...
 705         (assemble_variable): ...here.  Don't make decisions about common
 706         variables here.  Globalize all public decls that go into non-common
 707         sections.  Check whether SYMBOL_REF_BLOCK is null.
 708         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
 709         (output_constant_pool): Likewise.
 710         (init_varasm_once): Initialize the new section variables.
 711         (have_global_bss_p): New function.
 712         (categorize_decl_for_section): Use bss_initializer_p.
 713         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
 714         (place_block_symbol): Assert that the symbol must be in a block.
 715         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
 716         (TARGET_INITIALIZER): Include it.
 717         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
 718         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
 719         (SECTION_MACH_DEP): Bump by two.
 720         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
 721         (unnamed_section): Mention SECTION_UNNAMED in comment.
 722         (named_section): Likewise SECTION_NAMED.
 723         (noswitch_section_callback): New type.
 724         (noswitch_section): New structure.
 725         (section): Add a noswitch_section alternative.
 726         (SECTION_STYLE): New macro.
 727         (tls_comm_section, comm_section, lcomm_section): Declare.
 728         (bss_noswitch_section, have_global_bss_p): Declare.
 729         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
 730         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
 731         Override.
 732         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
 733         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
 734         Override.
 735
 736 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
 737
 738         * gcc/tree-vrp.c (execute_vrp): Return value.
 739         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
 740         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
 741         * gcc/tree-complex.c (tree_lower_complex): Ditto.
 742         (tree_lower_complex_O0): Ditto.
 743         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
 744         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
 745         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
 746         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
 747         (execute_tail_calls): Ditto.
 748         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
 749         * gcc/tree.h (init_function_for_compilation): Ditto.
 750         * gcc/ipa-cp.c (ipcp_driver): Ditto.
 751         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
 752         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
 753         * gcc/final.c (compute_alignments): Ditto.
 754         (rest_of_handle_final): Ditto.
 755         (rest_of_handle_shorten_branches): Ditto.
 756         (rest_of_clean_state): Ditto.
 757         * gcc/omp-low.c (execute_expand_omp): Ditto.
 758         (execute_lower_omp): Ditto.
 759         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
 760         * gcc/ipa-reference.c (static_execute): Ditto.
 761         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
 762         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
 763         (rest_of_handle_machine_reorg): Ditto.
 764         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
 765         * gcc/flow.c (recompute_reg_usage): Ditto.
 766         (rest_of_handle_remove_death_notes): Ditto.
 767         (rest_of_handle_life): Ditto.
 768         (rest_of_handle_flow2): Ditto.
 769         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
 770         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
 771         (do_ssa_store_ccp): Ditto.
 772         (execute_fold_all_builtins): Ditto.
 773         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
 774         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
 775         * gcc/ipa-pure-const.c (static_execute): Ditto.
 776         * gcc/cse.c (rest_of_handle_cse): Ditto.
 777         (rest_of_handle_cse2): Ditto.
 778         * gcc/web.c (rest_of_handle_web): Ditto.
 779         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
 780         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
 781         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
 782         * gcc/tree-nrv.c (tree_nrv): Ditto.
 783         (execute_return_slot_opt): Ditto.
 784         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
 785         (create_structure_vars): Ditto.
 786         * gcc/loop-init.c (rtl_loop_init): Ditto.
 787         (rtl_loop_done): Ditto.
 788         (rtl_move_loop_invariants): Ditto.
 789         (rtl_unswitch): Ditto.
 790         (rtl_unroll_and_peel_loops): Ditto.
 791         (rtl_doloop): Ditto.
 792         * gcc/gimple-low.c (lower_function_body): Ditto.
 793         (mark_used_blocks): Ditto.
 794         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
 795         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
 796         (cgraph_early_inlining): Ditto.
 797         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
 798         * gcc/jump.c (cleanup_barriers): Ditto.
 799         (purge_line_number_notes): Ditto.
 800         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
 801         (rest_of_handle_if_after_reload): Ditto.
 802         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
 803         (tree_ssa_loop_im): Ditto.
 804         (tree_ssa_loop_unswitch): Ditto.
 805         (tree_vectorize): Ditto.
 806         (tree_linear_transform): Ditto.
 807         (tree_ssa_loop_ivcanon): Ditto.
 808         (tree_ssa_empty_loop): Ditto.
 809         (tree_ssa_loop_bounds): Ditto.
 810         (tree_complete_unroll): Ditto.
 811         (tree_ssa_loop_prefetch): Ditto.
 812         (tree_ssa_loop_ivopts): Ditto.
 813         (tree_ssa_loop_done): Ditto.
 814         * gcc/predict.c (tree_estimate_probability): Ditto.
 815         * gcc/recog.c (split_all_insns_noflow): Ditto.
 816         (rest_of_handle_peephole2): Ditto.
 817         (rest_of_handle_split_all_insns): Ditto.
 818         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
 819         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
 820         (rest_of_handle_stack_adjustments): Ditto.
 821         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
 822         * gcc/function.c (instantiate_virtual_regs): Ditto.
 823         (init_function_for_compilation): Ditto.
 824         (rest_of_handle_check_leaf_regs): Ditto.
 825         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
 826         (rest_of_handle_gcse): Ditto.
 827         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
 828         * gcc/alias.c (rest_of_handle_cfg): Ditto.
 829         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
 830         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
 831         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
 832         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
 833         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
 834         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
 835         * gcc/except.c (set_nothrow_function_flags): Ditto.
 836         (convert_to_eh_region_ranges): Ditto.
 837         (rest_of_handle_eh): Ditto.
 838         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
 839         (remove_unnecessary_notes): Ditto.
 840         * gcc/except.h (set_nothrow_function_flags): Ditto.
 841         (convert_to_eh_region_ranges): Ditto.
 842         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
 843         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
 844         * gcc/tree-ssa-pre.c (do_pre): Ditto.
 845         (execute_fre): Ditto.
 846         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
 847         (rest_of_handle_jump2): Ditto.
 848         * gcc/tree-sra.c (tree_sra): Ditto.
 849         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
 850         (execute_mudflap_function_decls): Ditto.
 851         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
 852         (do_store_copy_prop): Ditto.
 853         * gcc/ipa-prop.h (ipcp_driver): Ditto.
 854         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
 855         * gcc/tree-ssa-forwprop.c
 856         (tree_ssa_forward_propagate_single_use_vars): Ditto.
 857         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
 858         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
 859         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
 860         (execute_late_warn_uninitialized): Ditto.
 861         * gcc/rtl.h (cleanup_barriers): Ditto.
 862         (split_all_insns_noflow): Ditto.
 863         (purge_line_number_notes): Ditto.
 864         (unshare_all_rtl): Ditto.
 865         (remove_unnecessary_notes): Ditto.
 866         (recompute_reg_usage): Ditto.
 867         (variable_tracking_main): Ditto.
 868         * gcc/integrate.c (emit_initial_value_sets): Ditto.
 869         * gcc/integrate.h (emit_initial_value_sets): Ditto.
 870         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
 871         (execute_free_cfg_annotations): Ditto.
 872         (execute_fixup_cfg): Ditto.
 873         (execute_cleanup_cfg_pre_ipa): Ditto.
 874         (execute_cleanup_cfg_post_optimizing): Ditto.
 875         (execute_init_datastructures): Ditto.
 876         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
 877         * gcc/combine.c (rest_of_handle_combine): Ditto.
 878         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
 879         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
 880         (rest_of_handle_reorder_blocks): Ditto.
 881         (rest_of_handle_partition_blocks): Ditto.
 882         * gcc/var-tracking.c (variable_tracking_main): Ditto.
 883         * gcc/tree-profile.c (tree_profiling): Ditto.
 884         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
 885         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
 886         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
 887         (rest_of_handle_sched2): Ditto.
 888         * gcc/basic-block.h (free_bb_insn): Ditto.
 889         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
 890         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
 891         (remove_useless_stmts): Ditto.
 892         (split_critical_edges): Ditto.
 893         (execute_warn_function_return): Ditto.
 894         (execute_warn_function_noreturn): Ditto.
 895         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
 896         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
 897         * gcc/passes.c (execute_one_pass): Run additional
 898         todos returned by execute function.
 899         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
 900         return a value.
 901
 902 2006-03-02  Richard Guenther  <rguenther@suse.de>
 903
 904         * tree-ssa-alias.c (find_used_portions): Consider taking
 905         the address as making the variable not write-only.
 906
 907 2006-03-02  Nick Clifton  <nickc@redhat.com>
 908
 909         * config.gcc (default_use_cxa_atexit): Extend the description of
 910         this configure variable.  Set its default value to "yes" for
 911         Linux, NetBSD and ELF targets on the assumption that they will
 912         use C libraries with the __cxa_atexit function.
 913
 914 2006-03-02  Ben Elliston  <bje@au.ibm.com>
 915
 916         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
 917         parameter as unused to suppress a build warning.
 918
 919 2006-03-02  Ben Elliston  <bje@au.ibm.com>
 920
 921         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
 922         config/dfp-bit.c.
 923
 924 2006-03-01  Roger Sayle  <roger@eyesopen.com>
 925
 926         PR other/26489
 927         * gthr-posix.h (__gthrw2): Define to take three parameters, the
 928         declared name, the weak reference name, and the typeof name.
 929         (__gthrw): Avoid expanding the declared name suffix.
 930         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
 931
 932 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
 933
 934         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
 935         from DWARF 3.
 936         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
 937         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
 938         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
 939         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
 940         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
 941         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
 942         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
 943         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
 944         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
 945         DW_DS_leading_separate, DW_DS_trailing_separate): New.
 946         (DW_END_default, DW_END_big, DW_END_little): New.
 947         (DW_END_lo_user, DW_END_hi_user): Define.
 948         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
 949         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
 950         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
 951         DW_LANG_D): New.
 952
 953 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
 954
 955         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
 956         Update all users.
 957         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
 958         Update all users.
 959         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
 960         Update all users.
 961         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
 962         Update all users.
 963         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
 964         to 'symbol_mem_tag'.
 965         Update all users.
 966         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
 967         rename.
 968
 969 2006-03-01  Roger Sayle  <roger@eyesopen.com>
 970
 971         * builtins.c (fold_builtin_copysign): Delete unreachable code.
 972
 973 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
 974
 975         PR target/25761
 976         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
 977         MACHO_DYNAMIC_NO_PIC_P.
 978         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
 979
 980 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
 981
 982         PR target/26389
 983         * config/darwin-protos.h (darwin_asm_output_anchor):
 984         Declare.
 985         * config/darwin-sections.def (cstring_section):
 986         Add SECTION_MERGE to the flags.
 987         (literal4_section): Likewise.
 988         (literal8_section): Likewise.
 989         (objc_selector_refs_section): Likewise.
 990         (objc_cls_refs_section): Likewise.
 991         * config/darwin.c (darwin_asm_output_anchor): New
 992         function.
 993         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
 994
 995 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
 996
 997         Fix PR tree-optimization/26443
 998         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
 999         to todo and PROP_tmt_usage to properties_destroyed.
1000         * tree-ssa-ccp.c (pass_ccp): Ditto.
1001         (pass_store_ccp): Ditto.
1002         * tree-ssa-dom.c (pass_dominator): Ditto.
1003
1004 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
1005
1006         * tree-ssa-operands.c: Cleanup whitespace.
1007         (get_asm_expr_operands): Move before first invocation.
1008         (get_indirect_ref_operands): Likewise.
1009         (get_tmr_operands): Likewise.
1010         (get_call_expr_operands): Likewise.
1011         (append_def): Likewise.
1012         (append_use): Likewise.
1013         (append_v_may_def): Likewise.
1014         (append_v_must_def): Likewise.
1015         (add_call_clobber_ops): Likewise.
1016         (add_call_read_ops): Likewise.
1017         (add_stmt_operand): Likewise.
1018         (add_virtual_operand): Likewise.
1019         (build_ssa_operands): Likewise.
1020
1021 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
1022
1023         PR middle-end/26022
1024         Revert:
1025         PR middle-end/24437
1026         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
1027         with a call expr to ...
1028         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
1029
1030 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
1031
1032         * tree-vrp.c (extract_range_from_assert): Remove special
1033         handling for types with super-types.
1034
1035 2006-03-01  Ben Elliston  <bje@au.ibm.com>
1036
1037         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
1038         and powerpc64-*-linux* configurations.
1039         * config/t-dfprules: New file.
1040
1041         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
1042         Compile dfp-bit.c from the source directory using -DWIDTH and
1043         $DFP_CFLAGS to control the compilation of that file, rather than
1044         generating width-specific versions in the build directory.
1045         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
1046         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
1047
1048 2006-02-28  Zack Weinberg  <zackw@panix.com>
1049
1050         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
1051         continues to work.
1052
1053 2006-02-28  Eric Christopher  <echristo@apple.com>
1054
1055         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
1056         Set up IN_LIBGCC definition of TARGET_64BIT.
1057         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
1058
1059 2006-02-28  Roger Sayle  <roger@eyesopen.com>
1060
1061         PR middle-end/14752
1062         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
1063         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
1064         cases via the construction of "expr != 0".
1065
1066 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
1067
1068         * alias.c (alias_invariant, alias_invariant_size): Remove.
1069         (record_base_value): Remove.
1070         (memrefs_conflict_p): Don't look at alias_invariant.
1071         (end_alias_analysis): Don't free it.
1072         * alias.h (record_base_value): Remove prototype.
1073
1074 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
1075             Adam Nemet  <anemet@caviumnetworks.com>
1076
1077         * rtl.h (truncated_to_mode): Declare it.
1078         (struct rtl_hooks): Add reg_truncated_to_mode hook.
1079         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
1080         (RTL_HOOKS_INITIALIZER): Include it.
1081         * rtlhooks.c (reg_truncated_to_mode_general): New function.
1082         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
1083         reg_truncated_to_mode.
1084         * rtlanal.c (truncated_to_mode): Define it.
1085         * simplify-rtx.c (simplify_unary_operation_1): Use it.
1086
1087 2006-02-28  Jeff Law  <law@redhat.com>
1088
1089         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
1090         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
1091         the range allowed by TYPE_PRECISION.
1092
1093         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
1094
1095 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
1096
1097         PR tree-optimization/26419
1098         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
1099         values of n.
1100
1101 2006-02-27  Zack Weinberg  <zackw@panix.com>
1102
1103         * doc/md.texi: Fix typo in previous change.
1104
1105 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
1106
1107         * df.c: Remove.
1108
1109 2006-02-27  Zack Weinberg  <zackw@panix.com>
1110
1111         * rtl.def (define_constraint, define_register_constraint)
1112         (define_memory_constraint, define_address_constraint): New MD forms.
1113         * gensupport.c (process_rtx): Put define_constraint etc on the
1114         predicate queue.
1115         * genpreds.c (process_define_predicate): Adjust comment.  Validate
1116         the name, and call validate_exp to validate the expression.
1117         (mark_mode_tests, write_extract_subexp): Can assume correct input.
1118         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
1119         all callers changed.
1120         (validate_exp, needs_variable, struct constraint_data)
1121         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
1122         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
1123         (const_dbl_constraints, constraint_max_namelen)
1124         (have_register_constraints, have_memory_constraints)
1125         (have_address_constraints, have_address_constraints)
1126         (have_extra_constraints, have_const_int_constraints)
1127         (have_const_dbl_constraints, mangle, add_constraint)
1128         (process_define_constraint, process_define_register_constraint)
1129         (write_enum_constraint_num, write_lookup_constraint)
1130         (write_insn_constraint_len, write_regclass_for_constraint)
1131         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
1132         (write_insn_extra_memory_constraint)
1133         (write_insn_extra_address_constraint)
1134         (write_satisfies_constraint_fns): New.
1135         (write_tm_preds_h): If we have new-style constraint definitions,
1136         prototype the functions generated from them, and define the
1137         old constraint interface (still used by generic code) in terms of
1138         those functions.
1139         (write_insn_preds_c): If we have new-style constraint definitions,
1140         generate all relevant functions from those definitions.
1141         (main): Handle define_constraint etc.
1142         * genoutput.c (struct constraint_data, indep_constraints)
1143         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
1144         (mdep_constraint_len): New data structures and functions, defined
1145         #ifdef USE_MD_CONSTRAINTS.
1146         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
1147         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
1148         use new logic to validate operand constraints against constraint
1149         definitions.
1150         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
1151         defined.
1152         * defaults.h: If none of the old-style constraint macros are
1153         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
1154         old-style macros; and poison REG_CLASS_FROM_LETTER,
1155         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
1156         EXTRA_CONSTRAINT.
1157         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
1158         * doc/md.texi: Document new constraint-definition mechanism and the
1159         C interface it provides.  Remove references to old mechanism
1160         elsewhere in the document.
1161         (Machine Constraints): Use pathnames relative to gcc directory,
1162         i.e. config/ARCH/FILE.  Change i386 section to refer to
1163         config/i386/predicates.md; update that section to match docstrings.
1164         * doc/tm.texi: Move all documentation of the old constraint-
1165         definition macros to their own section, clearly mark as obsolete.
1166
1167         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
1168         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
1169         definitions.
1170         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
1171         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
1172         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
1173         constraint strings.
1174         (splits and peepholes): Use satisfies_constraint_*.
1175         * config/i386/i386.c (memory_address_length)
1176         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
1177
1178 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1179
1180         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
1181         scalar operation to be put back into the loop.
1182
1183 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
1184
1185         PR other/26208
1186         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
1187         (extract_cie_info): Handle S flag in augmentation string.
1188         (execute_cfa_program): If context->signal_frame, execute also
1189         fs->pc == context->ra instructions.
1190         (uw_frame_state_for): If context->signal_frame, don't subtract one
1191         from context->ra to find FDE.
1192         (uw_update_context_1): Set context->signal_frame to
1193         fs->signal_frame.
1194         (_Unwind_GetIPInfo): New function.
1195         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
1196         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
1197         of _Unwind_GetIP.
1198         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
1199         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
1200         * unwind-compat.c (_Unwind_GetIPInfo): New function.
1201         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
1202         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
1203         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
1204         * config/i386/linux-unwind.h (x86_fallback_frame_state,
1205         x86_64_fallback_frame_state): Set fs->signal_frame.
1206         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
1207         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
1208         (frob_update_context): Likewise.  Workaround missing S flag in
1209         Linux 2.6.12 - 2.6.16 kernel vDSOs.
1210         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
1211         Remove the psw_addr + 1 hack.
1212
1213 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1214
1215         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
1216         with aggregates here.
1217         (find_func_aliases): Remove code for &<aggregate> from here.
1218
1219 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1220
1221         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
1222         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
1223         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
1224         as (X & C) ne/eq 0.
1225
1226 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1227
1228         PR middle-end/19983
1229         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
1230
1231 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
1232
1233         * opts.c (decode_options): Do not handle flag_strength_reduce.
1234         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
1235         and OPT_fstrength_reduce.
1236         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
1237         flag_prefetch_loop_arrays for being nonzero.
1238         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
1239         no-ops.
1240         (fprefetch-loop-arrays-rtl): Removed.
1241         (flag_prefetch_loop_arrays): Do not specify the value.
1242
1243         * doc/passes.texi: Update documentation of loop optimizer
1244         passes.
1245         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
1246         -frerun-loop-opt): Remove.
1247
1248 2006-02-26  Richard Guenther  <rguenther@suse.de>
1249
1250         PR tree-optimization/26421
1251         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
1252         in function calls that are ADDR_EXPRs as using the whole structure.
1253
1254 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
1255
1256         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
1257         * tree-pass.h (pass_loop_optimize): Remove.
1258         * passes.c (pass_loop_optimize): Never run it.
1259         * toplev.c (backend_init): Don't call init_loop.
1260         * opts.c (flag_loop_optimize_set): Remove.
1261         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
1262         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
1263         the old RTL loop optimizer when profiling enabled.
1264         * predict.c (tree_estimate_probability): Always strip builtin_expect.
1265         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
1266         pre-headers for the sake of the old RTL loop optimizer.
1267         * Makefile.in: Remove all references to loop.o.
1268
1269         * doc/invoke.texi: Remove all references to -floop-optimize
1270         and -frerun-loop-opt.
1271
1272 2006-02-26  Zack Weinberg  <zackw@panix.com>
1273
1274         * doc/md.texi (Machine Constraints): Refer to all files with paths
1275         relative to gcc directory (i.e. config/CPU/file).  Add missing
1276         @table @code ... @end table to M32C subsection.
1277
1278 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1279
1280         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
1281         (X & 1) == 0.
1282         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
1283
1284 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1285             James A. Morrison  <phython@gcc.gnu.org>
1286
1287         PR middle-end/21137
1288         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
1289         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
1290         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
1291         signedness of the shift operation.
1292
1293 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
1294
1295         PR tree-optimization/26359
1296         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
1297
1298 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1299
1300         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
1301         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
1302         as X == 0, and some symmetry related transformations.
1303         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
1304
1305 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1306
1307         PR middle-end/23673
1308         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
1309         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
1310         symmetry related transformations.  Fold (X^C1) == C2 as
1311         X == (C1^C2).
1312
1313 2006-02-25  Juergen Weigert  <jw@suse.de>
1314         Richard Guenther  <rguenther@suse.de>
1315
1316         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
1317
1318 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
1319
1320         * combine.c (gen_lowpart_or_truncate): Call
1321         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
1322
1323 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
1324
1325         * doc/invoke.texi: Move -fopenmp description to "Options for
1326         Code Generation".
1327         Remove reference to -lgomp.
1328
1329 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1330
1331         * doc/install.texi: Require GNU tar version 1.14.
1332
1333 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
1334
1335         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
1336         * doc/invoke.texi (C++ Dialect Options): Document
1337         -fno-use-cxa-get-exception-ptr.
1338         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
1339         * configure: Regenerate.
1340         * c.opt (fuse-cxa-get-exception-ptr): New.
1341         * c-opts.c (c_common_handle_option): Handle
1342         OPT_fuse_cxa_get_exception_ptr.
1343         * c-common.c (flag_use_cxa_atexit): Update documentation.
1344         (flag_use_cxa_get_exception_ptr): New.
1345         * c-common.h (flag_use_cxa_get_exception_ptr): New.
1346         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
1347         documentation.
1348         (C_COMMON_OVERRIDE_OPTIONS): New.
1349
1350 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1351
1352         PR middle-end/24952
1353         * combine.c (try_combine): Explicitly check whether GET_CODE is
1354         a SET or a CLOBBER, instead on checking that it isn't a USE.
1355
1356 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1357
1358         * fold-const.c (fold_comparison): New subroutine of fold_binary
1359         containing transformations common to both the equality and
1360         ordering relational operators, factored out of fold_binary.
1361         (fold_binary): Separate out the equality operators (EQ_EXPR
1362         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
1363         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1364         transformations common to both.
1365         (fold_div_compare): Fix latent bugs in the previously unreachable
1366         LT_EXPR and GE_EXPR cases.
1367
1368 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1369
1370         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1371         decl libname for clog to __clog on AIX.
1372
1373         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1374
1375 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1376
1377         PR target/26453
1378         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1379         output traceback table for thunks.  Localise rs6000_stack_info call.
1380
1381 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1382             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1383
1384         * gthr-posix.h (__gthrw): Fix typo in comment.
1385
1386 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1387
1388         * doc/cpp.texi (Character sets): Document that we do support
1389         input files to be in any character set.
1390
1391 2006-02-23  Jeff Law  <law@redhat.com>
1392
1393         * tree.h (PHI_ARG_NONZERO): Remove.
1394         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1395         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1396         node to the new node.
1397
1398         PR tree-optimization/26425
1399         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1400         min/max, then assume its varying.
1401
1402 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1403
1404         PR rtl-optimization/26316
1405         * rtlanal.c (enum may_trap_p_flags): New.
1406         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1407         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1408         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1409         (may_trap_after_code_motion_p): New function.
1410         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1411         (find_invariant_insn): Use may_trap_after_code_motion_p.
1412         * rtl.h (may_trap_after_code_motion_p): Declare.
1413
1414 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1415
1416         * emit-rtl.c (immed_double_const): Cleanup.
1417
1418 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1419
1420         Fix PR tree-optimization/26376
1421         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1422         remove assert.
1423
1424 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1425
1426         PR middle-end/26412
1427         * gimplify.c (omp_add_variable): Guard variable size decl test with
1428         DECL_SIZE (decl) check.
1429
1430 2006-02-23  Richard Guenther  <rguenther@suse.de>
1431
1432         PR middle-end/26439
1433         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1434         like aggregate types.
1435
1436 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1437
1438         * configure.ac: Add --with{,out}-long-double-128 configure option.
1439         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1440         * configure: Rebuilt.
1441         * config.in: Rebuilt.
1442         * doc/install.texi (Options specification): Document
1443         --with-long-double-128.
1444
1445         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1446         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1447         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1448         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1449
1450 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1451
1452         * config/s390/s390.c (override_options): Handle
1453         TARGET_DEFAULT_LONG_DOUBLE_128.
1454
1455         * config/alpha/alpha.c (override_options): Handle
1456         TARGET_DEFAULT_LONG_DOUBLE_128.
1457
1458         * config/sparc/sparc.c (sparc_override_options): Handle
1459         TARGET_DEFAULT_LONG_DOUBLE_128.
1460
1461 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1462
1463         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1464         (real-install-headers-tar, real-install-headers-cpio)
1465         (real-install-headers-cp): New targets.
1466
1467 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1468
1469         * tree.h (variable_section): Delete.
1470         * varasm.c (variable_section): Delete.
1471
1472 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1473
1474         * install.texi: Add notes on install.texi2html.
1475         (Building in parallel): Do not use footnotes.
1476
1477 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1478
1479         PR libgomp/26234
1480         * doc/install.texi (Configuration): Document --disable-libgomp.
1481
1482 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1483
1484         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1485
1486 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1487
1488         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1489         (vec_extractv2df_0_sse): New.
1490
1491 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1492
1493         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1494         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1495         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1496         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1497         to the result of the expression.
1498         (def_cfa_1): Adjust.
1499         (frame_pointer_cfa_offset): Rename to...
1500         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1501         (convert_cfa_to_loc_list): Rename to...
1502         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1503         Pass it on to build_cfa_loc.
1504         (compute_frame_pointer_to_cfa_displacement): Rename to...
1505         (compute_frame_pointer_to_fb_displacement): ... this.  New
1506         offset parameter.  Use it in computation.
1507         (gen_subprogram_die): Compute cfa_fb_offset with the new
1508         macro, and use it to compute the fb loc list and the
1509         displacement.
1510
1511 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1512
1513         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1514         replaced with register_operand.
1515         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1516         non-DREG is expensive.
1517         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1518         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1519         involving memory.
1520
1521 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1522
1523         * doc/install.texi2html: Use set -e.
1524
1525 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1526
1527         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1528         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1529         * doc/invoke.texi (-fshared-data): Delete.
1530         * common.opt (fshared-data): Delete.
1531         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1532         (assemble_static_space): Remove #if 0 code.
1533         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1534         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1535         * config/cris/cris.h: Remove FIXME.
1536
1537 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1538
1539         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1540         hooks.
1541
1542 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1543
1544         PR middle-end/26379
1545         * combine.c (simplify_shift_const_1): Disable nested shifts
1546         optimization for vector shifts.
1547
1548 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1549
1550         PR tree-optimization/26361
1551         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1552         of unsigned integer types.
1553
1554 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1555
1556         * tree-chrec.c (eq_evolutions_p): New.
1557         * tree-chrec.h (eq_evolutions_p): Declared.
1558         * tree-data-ref.c: Fix formatting.
1559         (datadep_stats, dependence_stats): New.
1560         (gcd): Moved...
1561         (print_direction_vector): New.
1562         (dump_data_dependence_relation): Use print_direction_vector.
1563         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1564         (compute_subscript_distance): Static.
1565         (initialize_data_dependence_relation): Static.  Get the number
1566         of loops surrounding the references from the callers, and initialize
1567         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1568         base_object_differ_p analyzers.
1569         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1570         compute_overlap_steps_for_affine_1_2,
1571         analyze_subscript_affine_affine): Count the classified dependences.
1572         Print a message when a test failed.
1573         (can_use_analyze_subscript_affine_affine): New.
1574         (analyze_siv_subscript): Compute the data dependences on symbolic
1575         scevs that verify can_use_analyze_subscript_affine_affine.
1576         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1577         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1578         Handle symbolic scevs.
1579         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1580         analyzed.
1581         (subscript_dependence_tester): Moved...
1582         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1583         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1584         DDR_SIZE_VECT instead of getting it in parameter.
1585         (subscript_dependence_tester): ... here.  Take as a parameter
1586         loop_nest_depth.  Call build_classic_dist_vector and
1587         build_classic_dir_vector.
1588         (compute_affine_dependence): Update subscript_dependence_tester
1589         parameters.  Update datadep_stats counters.  Call
1590         compute_subscript_distance.
1591         (compute_self_dependence): Save the dist and dir vectors.  Call
1592         compute_subscript_distance.
1593         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1594         (compute_all_dependences): Reorder parameters as they were before
1595         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1596         compute_subscript_distance.  Update the use of
1597         compute_affine_dependence and initialize_data_dependence_relation.
1598         (find_data_references_in_loop): Handle COMPONENT_REF.
1599         (compute_data_dependences_for_loop): Initialize dependence_stats.
1600         Don't call build_classic_dist_vector and build_classic_dir_vector.
1601         Update the parameters of initialize_data_dependence_relation and
1602         compute_all_dependences.  Print the statistics from datadep_stats.
1603         (analyze_all_data_dependences): Static.  Not used until the pass for
1604         checking the data dependences is contributed.
1605         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1606         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1607         (initialize_data_dependence_relation, compute_affine_dependence,
1608         analyze_all_data_dependences, compute_subscript_distance): Removed.
1609         (print_direction_vector): New.
1610         * lambda.h (gcd): ... here.
1611         (lambda_vector_gcd): Moved here from gcd_vector.
1612         * lambda-code.c (gcd, gcd_vector): Removed.
1613         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1614         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1615
1616 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1617
1618         * ipa-type-escape.c: Tidy some comments and white space.
1619         * tree-ssa-operands.c: Likewise.
1620
1621 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1622
1623         PR tree-opt/25879
1624         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1625         (dump_decl_name): Do not walk the decl tree chains.
1626         * tree-pass.h (TDF_CHAIN): Remove.
1627
1628 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1629
1630         * Makefile.in (C): Remove
1631         (PROTO): Remove
1632         (.PHONY): Remove C and PROTO
1633
1634 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1635
1636         PR middle-end/26236
1637         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1638         deprecated CHAR_TYPE tree code.
1639
1640 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1641
1642         * configure.ac (target_list): Add install-info, dvi, html.
1643         * configure: Regenerate.
1644
1645         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1646         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1647         treelang/Make-lang.in: Do not use double-colon rules.
1648
1649 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1650
1651         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1652         (TMT_USED_ALONE): New macro.
1653         * tree-pass.h (PROP_tmt_usage): New property.
1654         (TODO_update_tmt_usage): New todo.
1655         * tree-ssa-alias.c (updating_used_alone): New variable.
1656         (recalculate_used_alone): New function.
1657         (compute_may_aliases): Set updating_used_alone, call
1658         recalculate_used_alone.
1659         * tree-sra.c (pass_sra): Note that this pass destroys
1660         PROP_tmt_usage, and add TODO_update_tmt_usage.
1661         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1662         * tree-flow.h (updating_used_alone): Prototype.
1663         (recalculate_used_alone): Ditto.
1664         * passes.c (execute_todo): Add code to set updating_used_alone,
1665         and call recalculate.
1666         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1667         for clobber if used alone, and add assert to verify used_alone
1668         status.
1669
1670 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1671
1672         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1673         for non tls symbols added.
1674         (legitimize_address): Do nothing for PLUS expressions if one of the
1675         addends is a tls symbol reference.
1676
1677 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1678
1679         PR bootstrap/25476
1680
1681         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1682
1683         * Makefile.in (BOOTSTRAPPING): New.
1684         (quickstrap): New definition if BOOTSTRAPPING=yes.
1685
1686         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1687         * configure.ac: Substitute all_selected_languages with the languages
1688         that were configured.  For all the other variables except
1689         lang_specs_files, include all the languages in the tree.
1690         * configure: Regenerate.
1691
1692         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1693         if there is one.  Run the commands to run fixincludes in the same
1694         subshell.
1695
1696         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1697         * doc/install.texi: Document exact conventions for searching target tools.
1698         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1699         something more about building an Ada cross-compiler.  Don't list GNU Make
1700         requirements which affect all platforms.
1701
1702 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1703
1704         PR middle-end/19543
1705         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1706         only equivalent if the have both the same mode and precision.
1707
1708 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1709
1710         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1711
1712 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1713             Steven Bosscher  <stevenb.gcc@gmail.com>
1714
1715         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1716         constant pool references to identify stack mode constants.
1717         * rtlanal.c (constant_pool_constant_p): New predicate to check
1718         whether operand is a floating point constant in the pool.
1719         * rtl.h (constant_pool_constant_p): Prototype here.
1720         * loop.c (scan_loop): Avoid hoisting constants from the constant
1721         pool on STACK_REGS targets.
1722         (load_mems): Likewise.
1723         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1724         loads into x87 registers expensive in terms of register pressure.
1725
1726 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1727
1728         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1729         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1730
1731 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1732
1733         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1734         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1735
1736 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1737
1738         * doc/invoke.texi: Document -fipa-pta.
1739         * common.opt: Add ipa-pta option.
1740         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1741         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1742         (do_ds_constraint): Ditto.
1743         (get_constraint_for): Only add to referenced_vars if
1744         referenced_vars exists.
1745         (insert_into_field_list): Rewrite to do this unsorted.
1746         (insert_into_field_list_sorted): Rename old insert_into_field_list
1747         to this.
1748         (create_function_info_for): Use insert_into_field_list_sorted.
1749         (create_variable_info_for): Rewrite so it uses unsorted version,
1750         since the field list is sorted.
1751         (intra_create_variable_infos): Only add to referenced_vars if
1752         referenced_vars exists.
1753         (ipa_pta_execute): Init heapvars, and delete when done.
1754         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1755
1756 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1757
1758         * doc/install.texi: Add missing `@samp'.
1759
1760 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1761
1762         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1763         Use the arguments.
1764
1765 2006-02-18  Mark Wielaard  <mark@klomp.org>
1766
1767         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1768         who added new 4.1 features, bug fixes and integration support.
1769
1770 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1771
1772         PR target/26350
1773         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1774         MEM for ABI_V4 pic.
1775
1776 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1777
1778         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1779         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1780         (copy_insn_1): Likewise.  Don't copy each field individually.
1781         Reindent.
1782         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1783         of RTX_SIZE.
1784         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1785         * rtl.c (rtx_size): Rename variable to...
1786         (rtx_code_size): ...this.
1787         (rtx_size): New function.
1788         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1789         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1790         Reindent.
1791         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1792         * rtl.h (rtx_code_size): New variable.
1793         (rtx_size): Change from a variable to a function.
1794         (RTX_SIZE): Rename to...
1795         (RTX_CODE_SIZE): ...this.
1796
1797         PR target/9703
1798         PR tree-optimization/17106
1799         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1800         (Anchored Addresses): New section.
1801         * doc/invoke.texi (-fsection-anchors): Document.
1802         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1803         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1804         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1805         * hooks.c (hook_bool_mode_rtx_false): New function.
1806         * hooks.h (hook_bool_mode_rtx_false): Declare.
1807         * gengtype.c (create_optional_field): New function.
1808         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1809         SYMBOL_REF_IN_BLOCK_P is true.
1810         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1811         (min_anchor_offset, max_anchor_offset): Likewise.
1812         (use_anchors_for_symbol_p): New hook.
1813         * toplev.c (compile_file): Call output_object_blocks.
1814         (target_supports_section_anchors_p): New function.
1815         (process_options): Check that -fsection-anchors is only used on
1816         targets that support it and when -funit-at-a-time is in effect.
1817         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1818         if the decl doesn't have one.
1819         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1820         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1821         of force_const_mem through use_anchored_address.
1822         (expand_expr_constant): New function.
1823         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1824         calling expand_expr for INDIRECT_REF.
1825         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1826         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1827         * expr.h (use_anchored_address): Declare.
1828         * loop-unroll.c: Don't declare rtx vectors here.
1829         * explow.c: Include output.h.
1830         (validize_mem): Call use_anchored_address.
1831         (use_anchored_address): New function.
1832         * common.opt (-fsection-anchors): New switch.
1833         * varasm.c (object_block_htab, anchor_labelno): New variables.
1834         (hash_section, object_block_entry_eq, object_block_entry_hash)
1835         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1836         (use_blocks_for_decl_p, change_symbol_section): New functions.
1837         (get_variable_section): New function, split out from assemble_variable.
1838         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1839         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1840         symbol has already been created.
1841         (assemble_variable_contents): New function, split out from...
1842         (assemble_variable): ...here.  Don't output any code for
1843         block symbols; just pass them to place_block_symbol.
1844         Use get_variable_section and assemble_variable_contents.
1845         (get_constant_alignment, get_constant_section, get_constant_size): New
1846         functions, split from output_constant_def_contents.
1847         (build_constant_desc): Create a block symbol if use_object_blocks_p
1848         says so.  Or into SYMBOL_REF_FLAGS.
1849         (assemble_constant_contents): New function, split from...
1850         (output_constant_def_contents): ...here.  Don't output any code
1851         for block symbols; just pass them to place_section_symbol.
1852         Use get_constant_section and get_constant_alignment.
1853         (force_const_mem): Create a block symbol if use_object_blocks_p and
1854         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1855         (output_constant_pool_1): Add an explicit alignment argument.
1856         Don't switch sections here.
1857         (output_constant_pool): Adjust call to output_constant_pool_1.
1858         Switch sections here instead.  Don't output anything for block symbols;
1859         just pass them to place_block_symbol.
1860         (init_varasm_once): Initialize object_block_htab.
1861         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1862         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1863         (place_block_symbol, get_section_anchor, output_object_block)
1864         (output_object_block_htab, output_object_blocks): New functions.
1865         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1866         (TARGET_ASM_OUT): Include it.
1867         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1868         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1869         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1870         (TARGET_INITIALIZER): Include them.
1871         * rtl.c (rtl_check_failed_block_symbol): New function.
1872         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1873         (block_symbol, object_block): New structures.
1874         (rtx_def): Add a block_symbol field to the union.
1875         (BLOCK_SYMBOL_CHECK): New macro.
1876         (rtl_check_failed_block_symbol): Declare.
1877         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1878         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1879         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1880         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1881         * output.h (output_section_symbols): Declare.
1882         (object_block): Name structure.
1883         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1884         (default_use_anchors_for_symbol_p): Declare.
1885         * Makefile.in (RTL_BASE_H): Add vec.h.
1886         (explow.o): Depend on output.h.
1887         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1888         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1889         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1890         (rs6000_use_blocks_for_constant_p): New function.
1891
1892 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1893
1894         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1895
1896 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1897
1898         PR tree-opt/25680
1899         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1900         IMAGPART_EXPR.
1901
1902 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1903
1904         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1905         is_aliased.
1906         Update all users.
1907
1908 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1909
1910         PR middle-end/26334
1911         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1912         instead of DECL_REGISTER.
1913
1914 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1915
1916         PR ada/13408
1917         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1918
1919 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1920
1921         PR target/24837
1922         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1923         * opth-gen.awk: Handle Var and InverseMask together.
1924         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1925         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1926         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1927         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1928         used together.
1929         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1930         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1931         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1932         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1933         LINUX_DYNAMIC_LINKER): Define.
1934         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1935         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1936         TARGET_GLIBC.
1937         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1938         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1939         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1940         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1941         (TARGET_C99_FUNCTIONS): Don't define.
1942         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1943         GLIBC_DYNAMIC_LINKER.
1944         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1945         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1946         GLIBC_DYNAMIC_LINKER64): Define.
1947         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1948         LINUX_DYNAMIC_LINKER64.
1949         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1950         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1951         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1952         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1953         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1954         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1955         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1956         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1957         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1958         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1959         and LINUX_DYNAMIC_LINKER32.
1960         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1961         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1962         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1963         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1964         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1965         TARGET_GLIBC.
1966         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1967         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1968         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1969         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1970         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1971         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1972         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1973         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1974         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1975         LINUX_DYNAMIC_LINKER): Define.
1976         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1977         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1978         GLIBC_DYNAMIC_LINKER64): Define.
1979         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1980         LINUX_DYNAMIC_LINKER64.
1981         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1982         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1983         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1984         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1985         LINUX_DYNAMIC_LINKER): Define.
1986         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1987         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1988         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1989         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1990         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1991         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1992         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1993         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1994         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1995         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1996         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1997         * doc/invoke.texi (-muclibc): Remove caveat about supported
1998         targets.
1999
2000 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
2001
2002         * doc/cpp.texi (__TIMESTAMP__): Document.
2003
2004 2006-02-17  Roger Sayle  <roger@eyesopen.com>
2005
2006         PR middle-end/25600
2007         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
2008         C is one less than the width of X (and related transformations).
2009         * simplify-rtx.c (simplify_unary_operation_1): Transform
2010         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
2011         depending on STORE_FLAG_VALUE, were C is one less then the
2012         width of X.
2013
2014 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
2015
2016         Fix PR tree-optimization/26341
2017         * tree-ssa-operands.c (add_virtual_operand): Remove assert
2018         about NAME_MEMORY_TAG's.
2019
2020 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2021
2022         PR target/26255
2023         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
2024         with hardware float support, and software float support.  Add fcpy
2025         alternative to hardware patterns.  Add alternatives to copy between
2026         general and floating-point registers to the 32-bit pattern.
2027         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
2028         secondary reload to load a QI or HI mode constant into a floating
2029         point register.
2030         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
2031         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
2032
2033 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
2034
2035         PR target/26272
2036         * config/rs6000/darwin.md (load_macho_picbase_si): Add
2037         pc to the pattern.
2038         (load_macho_picbase_di): Likewise.
2039
2040 2006-02-16  Jeff Law  <law@redhat.com>
2041
2042         * tree-vrp.c (set_value_range_to_nonnegative): New function.
2043         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
2044         (ssa_name_nonzero_p): Likewise.
2045         (get_value_range): Return NULL if VRP is not running.
2046         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
2047         VRP routines do not discover a range.
2048         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
2049         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
2050         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
2051         (tree_expr_nonnegative_p): Similarly.
2052         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
2053         (restore_nonzero_vars_to_original_value): Remove.
2054         (unsafe_associative_fp_binop): Remove.
2055         (tree_ssa_dominator_optimize): Remove initialization and
2056         finalization of nonzero_vars and nonzero_vars_stack.
2057         (dom_opt_initialize_block): No longer push marker on
2058         nonzero_vars_stack.
2059         (dom_opt_finalize_block): No longer call
2060         restore_nonzero_vars_to_original_value.
2061         (record_equivalences_from_phis): No longer look for
2062         nonzero PHI arguments.
2063         (cprop_into_successor_phis): No longer propagate nonzero
2064         property into PHI arguments.  Lose unused argument.  Caller
2065         updated.
2066         (record_equivalences_from_stmt): No longer record nonzero
2067         values for SSA_NAMEs.
2068         (lookup_avail_expr): No longer use nonzero_vars.
2069
2070         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
2071         for sizetype when sizetype is unsigned.
2072
2073 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
2074
2075         PR rtl-optimization/25603
2076         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
2077         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
2078         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
2079         with new meaning of SETS.
2080
2081 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
2082
2083         PR target/20353
2084         PR target/24578
2085         PR target/24837
2086         * config/linux.opt: New file.
2087         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
2088         LINUX_DYNAMIC_LINKER): Define.
2089         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
2090         * config.gcc (*-*-linux*): Define extra_options.
2091         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
2092         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
2093         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
2094         GLIBC_DYNAMIC_LINKER.
2095         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
2096         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2097         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2098         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2099         * doc/invoke.texi (GNU/Linux Options): New section.
2100
2101 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
2102
2103         * config/sparc/sparc.md (setjmp): Rewrite.
2104         (setjmp_32): Delete.
2105         (setjmp_64): Likewise.
2106
2107 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
2108
2109         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
2110          previous change.
2111
2112 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
2113
2114         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
2115         read-write uses.
2116
2117 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
2118
2119         PR rtl-optimization/26296
2120         * Makefile.in (loop-invariant.c): Add except.h dependency.
2121         * loop-invariant.c: Include except.h.
2122         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
2123
2124 2005-02-16  Paul Brook  <paul@codesourcery.com>
2125
2126         * reload1.c (emit_reload_insns): Invalidate dead input registers used
2127         for reloads.
2128
2129 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
2130
2131         PR rtl-optimization/25636
2132         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
2133         when deciding whether an insn is an initializing insn.
2134
2135 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
2136
2137         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
2138         (tree_code_size): Ditto.
2139         * tree.h (struct tree_memory_tag): Remove parent_var.
2140         (struct tree_struct_field_tag): New.
2141         (SFT_OFFSET): New.
2142         (SFT_SIZE): New.
2143         (union tree_node): Add sft member.
2144         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
2145         specially here.
2146         (create_sft): Add size and offset argument, set SFT_OFFSET and
2147         SFT_SIZE.
2148         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
2149         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
2150         * tree-flow-inline.h (get_subvar_at): Update for
2151         SFT_OFFSET/SFT_SIZE.
2152         (var_can_have_subvars): Ditto.
2153         (overlap_subvar): Ditto.
2154         * print-tree.c (print_node): Print out interesting things for
2155         SFT's.
2156         * tree-flow.h (struct subvar): Remove offset and size members.
2157         * tree-ssa-operands.c (get_expr_operands): Update for
2158         get_indirect_ref_operands changes.
2159         (get_indirect_ref_operands): Call add_virtual_operand instead of
2160         add_stmt_operand.  Only recurse on base var if requested.
2161         (access_can_touch_variable): New function.
2162         (add_stmt_operand): Split virtual operand handling into ...
2163         (add_virtual_operand): Here.  Add offset, size, and for_clobber
2164         arguments.  Prune alias sets.
2165         (add_call_clobber_ops): Call add_virtual_operand.
2166
2167 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
2168
2169         PR middle-end/26300
2170         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
2171
2172         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
2173         than TREE_CODE as index into omp_clause_num_ops array.
2174
2175 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
2176
2177         PR rtl-optimization/26184
2178         * modulo-sched.c (generate_reg_moves): Free bitmap vector
2179         uses_of_defs.
2180         * modulo-sched.c (sms_schedule): Free g_arr pointer.
2181         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
2182         must_precede, must_follow and tobe_scheduled.
2183
2184         PR other/26147
2185         * opts.c (common_handle_option): Free new_option pointer.
2186         * df-core.c (df_analyze): Free postorder pointer.
2187
2188 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
2189
2190         * Makefile.in: Fix the examples about the use of stamps
2191
2192 2006-02-15  Michael Matz  <matz@suse.de>
2193
2194         PR middle-end/22275
2195
2196         * stor-layout.c (layout_decl): Zero-width bitfields aren't
2197         influenced by maximum_field_alignment or DECL_PACKED.
2198         (update_alignment_for_field): Ditto.
2199         (place_field): Ditto.
2200         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
2201         this behaviour.
2202
2203 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
2204
2205         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
2206         (debug_flow_info): Pass it.
2207         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
2208         * bb-reorder.c (reorder_basic_blocks): Likewise.
2209         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
2210         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
2211         * flow.c (life_analysis, recompute_reg_usage): Likewise.
2212         * gcse.c (gcse_main, bypass_jumps): Likewise.
2213         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
2214         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
2215         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
2216         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
2217         * rtl.h (dump_flow_info): Adjust prototype.
2218         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
2219         * var-tracking.c (variable_tracking_main): Likewise.
2220         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
2221         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
2222         options.
2223
2224 2006-02-15  Marcin Dalecki <martin@dalecki.de>
2225
2226         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
2227         construction.
2228
2229 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2230
2231         PR tree-optimization/26209
2232         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
2233         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
2234         eh edges.
2235         * tree-cfg.c (replace_uses_by): Do not alter cfg.
2236
2237 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2238
2239         PR middle-end/23670
2240         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
2241         (X,Y) and the corresponding symmetry related transformations.
2242         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
2243         (X,Y) and its symmetry related transformations.
2244
2245 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2246
2247         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
2248         and GEU.
2249
2250 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
2251
2252         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
2253
2254 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
2255
2256         PR bootstrap/26053
2257         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
2258         support COMDAT group.
2259         * configure: Regenerate.
2260
2261 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2262
2263         PR middle-end/26279
2264         PR middle-end/26280
2265         PR middle-end/26283
2266         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
2267
2268 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
2269
2270         Fix PR tree-optimization/26260
2271
2272         * doc/invoke.texi (max-fields-for-field-sensitive): Document
2273         param.
2274         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
2275         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
2276         * tree-ssa-structalias.c (create_variable_info_for): Use
2277         MAX_FIELDS_FOR_FIELD_SENSITIVE.
2278
2279 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2280
2281         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
2282         Document.
2283         * tree-ssa-loop-niter.c (number_of_iterations_ne,
2284         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
2285         of the ending condition.
2286         * tree-ssa-loop-manip.c: Include params.h.
2287         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
2288         tree_unroll_loop): New functions.
2289         * tree-pass.h (pass_loop_prefetch): Declare.
2290         * loop.c (rest_of_handle_loop_optimize): Test for
2291         -fprefetch-loop-arrays-rtl.
2292         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
2293         * timevar.def (TV_TREE_PREFETCH): New timevar.
2294         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
2295         pass_loop_prefetch): New.
2296         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
2297         (cleanup_tree_cfg_loop): Call scev_reset.
2298         * common.opt (fprefetch-loop-arrays-rtl): Add.
2299         * tree-ssa-loop-prefetch.c: New file.
2300         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
2301         (new_temp_expr_table): Initialize expr_vars.
2302         (free_temp_expr_table): Cleanup expr_vars.
2303         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
2304         expressions from being merged into one.
2305         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
2306         (struct tree_niter_desc): Add control, bound and cmp fields.
2307         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
2308         Declare.
2309         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
2310         (tree-cfgcleanup.o): Add SCEV_H dependency.
2311         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
2312         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
2313
2314 2006-02-14  Richard Guenther  <rguenther@suse.de>
2315
2316         PR tree-optimization/26258
2317         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
2318         in PHI argument processing.
2319
2320 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
2321
2322         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
2323         new expression in the requested machine mode.
2324
2325 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2326
2327         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
2328         directly, instead let do_compare_rtx_and_jump handle this for us.
2329         * expr.c (expand_expr_real_1): Likewise.
2330         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
2331         before do_jump_by_parts_greater.
2332         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
2333         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
2334
2335 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2336
2337         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
2338
2339 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2340
2341         PR rtl-optimization/26235
2342         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
2343         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
2344         format.
2345
2346 2006-02-13  Jeff Law  <law@redhat.com>
2347
2348         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
2349         TRUTH_XOR_EPR.
2350
2351 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
2352
2353         PR middle-end/26092
2354         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
2355         twice if decl is a builtin.  When trying again, call get_callee_fndecl
2356         first to verify it is still a builtin.
2357
2358 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
2359
2360         * dwarf2out.c (base_type_die): Don't add AT_name here.
2361         (subrange_type_die): Don't add AT_name here.
2362         (modified_type_die): Rearrange code flow.  Do add AT_name here.
2363
2364 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2365
2366         PR rtl-optimization/26247
2367         PR rtl-optimization/26248
2368         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2369
2370 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2371
2372         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2373         * config/fixtfdi.c: Likewise.
2374         * config/fixunstfdi.c: Likewise.
2375         * config/floatditf.c: Likewise.
2376
2377 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2378
2379         PR middle-end/24427
2380         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2381         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2382         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2383         (X&(C1&~C2))|C2.
2384         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2385
2386 2006-02-13  Josh Conner  <jconner@apple.com>
2387
2388         PR target/25376
2389         * varasm.c (function_section): Check for section name before
2390         calling select_section on targets that define
2391         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2392         unlikely_text_section instead of hot_function_section if
2393         first_function_block_is_cold.
2394
2395 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2396
2397         PR middle-end/25335
2398         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2399
2400 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2401
2402         PR rtl-optimization/26222
2403         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2404         after tree->rtl expansion.
2405         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2406         before passing it to emit_move_insn.
2407
2408 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2409
2410         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2411         default.
2412         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2413         Clarify documentation.
2414         * c-common.h (warn_write_strings): Remove.
2415         * c-common.c (warn_write_strings): Likewise.
2416         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2417         default for C++.
2418
2419 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2420
2421         PR middle-end/25724
2422         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2423         (do_jump_parts_zero_rtx): New function renamed from
2424         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2425         (do_jump_parts_equality_rtx): New function split out from
2426         do_jump_parts_equality.  Old implementation renamed as above.
2427         Call do_jump_parts_zero_rtx if either operand is zero.
2428         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2429         do all of the heavy lifting.
2430         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2431         calling either do_jump_by_parts_greater_rtx or
2432         do_jump_by_parts_equality_rtx.
2433         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2434         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2435         moved to do_compare_rtx_and_jump, call it directly.
2436         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2437         mode argument.  Call do_compare_rtx_and_jump.
2438         (emit_case_nodes): Update calls to do_jump_if_equal.
2439
2440 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2441
2442         PR rtl-optimization/26225
2443         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2444
2445 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2446
2447         PR rtl-optimization/26232
2448         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2449
2450 2006-02-11  Jason Merrill  <jason@redhat.com>
2451
2452         PR tree-opt/24365
2453         * tree-inline.c (declare_return_variable): Just don't use the
2454         modify target if it's a gimple complex reg and the return slot
2455         isn't.
2456
2457 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2458
2459         * doc/contrib.texi: Update my entry.
2460
2461 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2462
2463         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2464
2465 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2466
2467         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2468         expensive.
2469
2470 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2471
2472         * doc/invoke.texi (-floop-optimize2): Removed.
2473         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2474         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2475         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2476         * common.opt (floop-optimize2): Removed.
2477         (fmove-loop-invariants): Enabled by default.
2478
2479 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2480
2481         * tree-if-conv.c (combine_blocks): Free the result of
2482         get_loop_exit_edges.
2483
2484 2006-02-10  Jeff Law  <law@redhat.com>
2485
2486         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2487
2488         PR tree-optimization/26213
2489         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2490         loop trying to follow SSA_NAME_VALUE chains.
2491
2492 2006-02-10  Richard Guenther  <rguenther@suse.de>
2493
2494         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2495         deal with structures that end in implicitly variable sized arrays.
2496
2497 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2498
2499         PR rtl-optimization/24762
2500         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2501         eh edges.
2502
2503 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2504
2505         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2506         (struct ivopts_data): Add regs_used field.
2507         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2508         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2509         instead of loop_data->regs_used;
2510         (free_loop_data): Do not free aux fields for loops.
2511         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2512         and tree_ssa_iv_optimize_finalize.
2513
2514 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2515
2516         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2517
2518 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2519
2520         PR target/26141
2521         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2522         computing the effective result type.
2523
2524 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2525
2526         PR inline-asm/16194
2527         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2528         (tree_overlaps_hard_reg_set): Declare.
2529         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2530         type and signature to match function type expected by walk_tree.
2531         (tree_overlaps_hard_reg_set): New function.
2532         (decl_conflicts_with_clobbers_p): Rename to:
2533         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2534         Use tree_overlaps_hard_reg_set.  Changed caller.
2535         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2536         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2537         * cris.c (cris_md_asm_clobbers): Likewise.
2538
2539 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2540
2541         * reload1.c (emit_input_reload_insns): Delete code that tries to
2542         inherit using find_equiv_reg.
2543
2544 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2545
2546         * c-common.h (flag_const_strings): Don't declare.
2547         * c-common.c (flag_const_strings): Remove.
2548         * c.opt (fconst_strings): Remove.
2549         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2550         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2551         (c_common_init_options): Don't set flag_const_strings.
2552         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2553
2554 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2555
2556         * arm.md (tlobits_cbranch): New pattern.
2557         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2558         testing a single bit.
2559
2560 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2561
2562         PR tree-opt/26179
2563         * tree-ssa-pre.c (create_component_ref_by_pieces):
2564         Handle RETURN_DECL like VAR_DECL.
2565
2566 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2567
2568         PR middle-end/26134
2569         * fold-const.c (fold_indirect_ref_1): Fold
2570         "*(foo *)&complexfoo" to "__real__ complexfoo"
2571         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2572
2573 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2574
2575         * tree-flow-inline.h (var_can_have_subvars):
2576         Volatile variables should not have subvariables.
2577
2578 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2579
2580         PR 26180
2581         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2582         multiplying unsigned values.
2583         Tidy comments.
2584
2585 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2586
2587         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2588
2589 2006-02-08  Jason Merrill  <jason@redhat.com>
2590
2591         PR c++/25979
2592         * tree.def: Elaborate on difference from MODIFY_EXPR.
2593         * doc/c-tree.texi (INIT_EXPR): Likewise.
2594         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2595         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2596         (gimplify_target_expr): Likewise.
2597         (gimplify_cond_expr): Remove target handling.
2598         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2599         (gimplify_expr): Clobber it here.
2600         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2601         Do return slot optimization if we have an INIT_EXPR.
2602
2603         PR tree-opt/24365
2604         * tree-inline.c (declare_return_variable): Also clear
2605         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2606
2607         PR c++/16405
2608         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2609
2610         PR middle-end/22439
2611         * gimplify.c (gimplify_one_sizepos): Fix typo.
2612
2613 2006-02-08  Jeff Law  <law@redhat.com>
2614
2615         PR tree-optimization/21417
2616         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2617         across a backedge if the control statement at the end of the
2618         block is data dependent on other statements in the same block.
2619         (record_temporary_equivalences_from_stmts): Remove over-conservative
2620         test for threading across backedges.
2621
2622         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2623         control statement, handle all three special cases in the same
2624         manner as they all have the same desired solution.  No longer
2625         special case edge flag updating when the post dominator is
2626         the exit block.
2627
2628 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2629
2630         * tree.def (CHAR_TYPE): Remove.
2631         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2632         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2633         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2634         (gen_string_type_die): Delete unreachable function.
2635
2636         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2637         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2638         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2639         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2640         * builtins.c (type_to_class): Likewise.
2641         * fold-const.c (fold_convert, build_range_check,
2642         merge_ranges): Likewise.
2643         * expr.c (count_type_elements): Likewise.
2644         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2645         * stor-layout.c (layout_type): Likewise.
2646         * ipa-type-escape.c (type_to_consider): Likewise.
2647         * gimplify.c (omp_firstprivatize_type_sizes,
2648         gimplify_type_sizes): Likewise.
2649         * explow.c (promote_mode): Likewise.
2650         * tree-sra.c (is_sra_scalar_type): Likewise.
2651         * varasm.c (output_constant): Likewise.
2652         * tree-inline.c (remap_type_1): Likewise.
2653         * convert.c (convert_to_pointer, convert_to_real,
2654         convert_to_integer, convert_to_complex): Likewise.
2655
2656 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2657
2658         * df-scan.c (df_def_record_1): A set destination may
2659         be a parallel regardless of mode.
2660
2661 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2662
2663         PR target/22209
2664         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2665         * config/mips/_tilib.c: Remove.
2666         * config/fixtfdi.c: New libgcc source file.
2667         * config/fixunstfdi.c: New source file.
2668         * config/floatditf.c: New source file.
2669         * config/floatunditf.c: New souce file.
2670         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2671         files above instead of config/mips/_tilib.c.
2672         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2673
2674 2006-02-08  Jeff Law  <law@redhat.com>
2675
2676         PR tree-optimization/26169
2677         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2678         threading jumps.
2679
2680 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2681
2682         * df.h (DF_REG_SIZE): Return the length of the initialized
2683         part of the array.
2684
2685 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2686
2687         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2688         __muldf3): Return a correctly signed zero.
2689
2690 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2691
2692         * passes.c (register_one_dump_file): Accept the current properties
2693         instead of pass number.  Adjust call to dump_register.  Remove
2694         duplicated code.
2695         (register_dump_files): Now a wrapper around...
2696         (register_dump_files_1): ... this one.  Do not modify the pass
2697         structure.
2698         (next_pass_1): Cosmetic fix.
2699         (execute_todo): Keep second parameter only.  Use curr_properties
2700         instead of fetching it from the pass structure.  Check and set
2701         last_verified.
2702         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2703         instead of fetching it from the pass structure.  Fix calls to
2704         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2705         after running the pass.  Reset last_verified.
2706         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2707         at the beginning.
2708         (FIRST_AUTO_NUMBERED_DUMP): New.
2709         (dump_register): Remove "num" parameter, assign it within the
2710         function.
2711         (get_dump_file_name): Modify template for dumps.
2712         * tree-dump.h (dump_register): Adjust prototype.
2713         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2714         (PROP_trees): Add PROP_gimple_lomp.
2715         (TODO_set_props): New.
2716         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2717         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2718         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2719
2720 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2721
2722         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2723         (sparc64-*-linux*): Likewise.
2724         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2725         * config/sparc/t-linux: New file.
2726         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2727         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2728         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2729         -m32 -mlong-double-128.
2730
2731         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2732         * config/alpha/t-linux: New file.
2733         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2734
2735         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2736         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2737         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2738         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2739         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2740         (CPP_ARCH32_SPEC): Remove.
2741
2742 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2743
2744         PR tree-optimization/26145
2745         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2746         bbs pointer.
2747
2748 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2749
2750         PR target/26109
2751         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2752         >= 240000 when generating code for SOM runtime.
2753         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2754         to $$dyncall when generating code for SOM runtime..
2755
2756 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2757
2758         PR c++/18150
2759         * doc/invoke.texi (-Wsequence-point): Update documentation
2760         that -Wsequence-point is implemented for C++ as well.
2761
2762 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2763
2764         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2765         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2766         (LIB_SPEC): Likewise.
2767         * doc/invoke.texi (SPARC options): Document -pthread.
2768
2769 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2770
2771         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2772         PIC addresses.
2773
2774 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2775
2776         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2777         Correct comment describing BOOLEAN_TYPE.
2778
2779 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2780
2781         * c.opt: C++ frontend supports -Wdiv-by-zero.
2782         * c-opts.c (c_common_handle_option): Remove dead case.
2783
2784 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2785
2786         * configure.ac (TLS assembler check): Do not enable TLS by
2787         default on SPARC/Solaris before version 10.
2788         * configure: Regenerate.
2789
2790 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2791
2792         * doc/invoke.texi (xl-compat): Document conversion and support
2793         routine names.
2794
2795 2006-02-07  Jeff Law  <law@redhat.com>
2796
2797         * tree-vrp.c (find_conditional_asserts): Update comments.
2798         (simplify_stmt_for_jump_threading): New.
2799         (identify_jump_threads, finalize_jump_threads): New.
2800         (vrp_finalize): Call identify_jump_threads.
2801         (execute_vrp): Call finalize_jump_threads.
2802         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2803         (vrp_element, vrp_data, vrp_element_p): Remove.
2804         (vrp_hash_elt, vrp_variables_stack): Remove.
2805         (vrp_hash, vrp_eq, record_range): Remove.
2806         (simplify_cond_and_lookup_avail_expr): Remove.
2807         (extract_range_from_cond): Remove.
2808         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2809         (simplify_stmt_for_jump_threading): New.
2810         (dom_thread_across_edge): New wrapper.
2811         (tree_ssa_dominator_optimize): No longer initialize or
2812         finalize any of the VRP datastructures.  Remove iteration
2813         step and simplify as a result of removal of iteration step.
2814         (pass_dominator): Perform a cfg cleanup after DOM.
2815         (dom_opt_finalize_block): Use the new common routines
2816         for threading jumps.  Simplify stack management slightly.
2817         No longer need to unwind VRP state.
2818         (record_equivalences_from_incoming_edge): No longer record
2819         VRP information.
2820         (eliminate_redundant_computations): No longer call
2821         simplify_cond_and_lookup_avail_expr.
2822         * tree-flow.h (potentially_threadable_block): Prototype.
2823         (thread_across_edge): Likewise.
2824         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2825         (tree-ssa-threadedge.o): Add dependencies.
2826         * tree-ssa-threadedge.c: New file.
2827         * passes.c (init_optimization_passes): Merge PHIs before
2828         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2829
2830 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2831
2832         * df-core.c (df_set_blocks): Do not dereference function pointers.
2833         (df_finish1): Likewise.
2834         (df_hybrid_search_forward): Likewise.
2835         (df_hybrid_search_backward): Likewise.
2836         (df_iterative_dataflow): Likewise.
2837         (df_analyze_problem): Likewise.
2838         (df_compact_blocks): Likewise.
2839         (df_dump): Likewise.
2840         * df-scan.c (df_rescan_blocks): Likewise.
2841         (df_record_entry_block_defs): Likewise.
2842
2843         * genconditions.c (write_conditions): Guard the definition of
2844         'insn_conditions' with the check on GCC version.
2845         (write_writer): Guard the traversal 'insn_conditions' with
2846         the check on GCC version.
2847
2848 2006-02-07  Richard Guenther  <rguenther@suse.de>
2849
2850         PR c++/26140
2851         Revert
2852         2006-01-30  Richard Guenther  <rguenther@suse.de>
2853         PR c++/23372
2854         * gimplify.c (gimplify_target_expr): Handle easy cases
2855         without creating a temporary.
2856
2857 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2858
2859         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2860         use of float in probability computations.  Use edge probabilities
2861         in place of statically computed probabilities.
2862         (min_spec_prob): New static variable.
2863         (schedule_insns): Initialize it.
2864         (GET_SRC_PROB): Removed.
2865         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2866
2867 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2868
2869         PR debug/24444
2870         * config/ia64/unwind-ia64.c: Revert last change.
2871         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2872         (INCOMING_FRAME_SP_OFFSET): Define.
2873
2874 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2875
2876         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2877
2878 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2879
2880         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2881         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2882         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2883         (ix86_return_in_memory): Handle TDmode.
2884         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2885         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2886
2887 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2888
2889         * reorg.c (dbr_schedule): Use dump_file instead of file.
2890
2891 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2892
2893         PR target/25917
2894         * config/ia64/predicates.md (extr_len_operand): New predicate.
2895         * config/ia64/ia64.md (extv): Tighten constraints.
2896         (extzv): Ditto.
2897         (*tbit_and_2): Ditto.
2898         (*tbit_and_3): Ditto.
2899         (*tbit_or_2): Ditto.
2900         (*tbit_or_3): Ditto.
2901         (*bit_zero): Ditto.
2902         (*bit_one): Ditto.
2903
2904 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2905
2906         PR target/23359
2907         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2908
2909 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2910
2911         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2912         loop_optimizer_init and loop_optimizer_finalize
2913         * tree-ssa-sink.c (execute_sink_code): Ditto.
2914         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2915         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2916         tree_ssa_loop_done): Ditto.
2917         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2918         * sched-ebb.c: Include output.h.
2919         (schedule_ebbs): Do not use dump argument.
2920         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2921         * loop.c (loop_dump_stream): Removed.
2922         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2923         argument.
2924         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2925         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2926         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2927         loop_iterations, strength_reduce, record_biv, record_giv,
2928         final_giv_value, check_final_value, check_ext_dependent_givs,
2929         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2930         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2931         dump_file instead of loop_dump_stream.
2932         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2933         argument dump_file.
2934         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2935         dump argument.
2936         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2937         * haifa-sched.c: Include output.h
2938         (schedule_insns, sched_init): Do not use dump argument.
2939         * mode-switching.c (optimize_mode_switching): Ditto.
2940         * modulo-sched.c (stats_file): Removed.
2941         (print_node_sched_params): Do not call argument dump_file.
2942         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2943         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2944         of stats_file.
2945         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2946         use dump argument.
2947         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2948         rtl_loop_init, rtl_loop_done): Ditto.
2949         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2950         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2951         Ditto.
2952         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2953         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2954         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2955         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2956         * emit-rtl.c (renumber_insns): Ditto.
2957         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2958         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2959         * regclass.c (regclass): Ditto.
2960         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2961         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2962         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2963         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2964         Ditto.
2965         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2966         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2967         to regclass.
2968         * gcse.c (gcse_file, debug_stderr): Removed.
2969         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2970         rest_of_handle_gcse): Do not use dump argument.
2971         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2972         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2973         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2974         compute_code_hoist_vbeinout, compute_code_hoist_data,
2975         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2976         compute_store_table, build_store_vectors, insert_insn_start_bb,
2977         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2978         store_motion): Use dump_file instead of gcse_file.
2979         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2980         * profile.c (profile_dump_file): Removed.
2981         (branch_prob): Use dump_file instead of profile_dump_file.
2982         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2983         dump_file.
2984         * tree-ssa-copy.c (dump_copy_of): Ditto.
2985         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2986         dump file to life_analysis.
2987         * bt-load.c (branch_target_load_optimize): Ditto.
2988         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2989         renumber_insns.
2990         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2991         regclass, dbr_schedule): Declaration changed.
2992         * sched-int.h (sched_init): Declaration changed.
2993         * tree-profile.c (tree_profile_dump_file): Removed.
2994         (tree_profile_hooks): Removed profile_dump_file hook.
2995         * rtl-profile (rtl_profile_dump_file): Removed.
2996         (rtl_profile_hooks): emoved profile_dump_file hook.
2997         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2998         changed.
2999         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
3000         * tree-cfg.c (build_tree_cfg): Ditto.
3001         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
3002         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
3003         Declaration changed.
3004         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
3005         life_analysis and schedule_insns.
3006         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
3007         life_analysis.
3008         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
3009         dbr_schedule.
3010         * config/mips/mips.c (mips_reorg): Ditto.
3011         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
3012         schedule_ebbs.
3013
3014 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
3015
3016         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3017         (s390_mangle_fundamental_type): New.
3018         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3019         Define.
3020
3021         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3022         (alpha_mangle_fundamental_type): New.
3023         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3024         Define.
3025
3026         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3027         Define.
3028         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3029         Define.
3030         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3031         (sparc_mangle_fundamental_type): New.
3032
3033 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
3034
3035         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
3036         (s390x-*-linux*): Likewise.
3037         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
3038         * config/s390/t-linux: New file.
3039
3040 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
3041
3042         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
3043         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
3044
3045 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
3046
3047         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
3048         (ANTIC_SAFE_LOADS): New macro.
3049         (find_or_generate_expression): Add prototype.
3050         (set_contains_value): Allow null set for sake of not always having
3051         to allocate ANTIC_SAFE_LOADS.
3052         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
3053         Allow COMPONENT_REF too.
3054         (valid_in_set): Allow COMPONENT_REF.
3055         Check ANTIC_SAFE_LOADS too.
3056         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
3057         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
3058         rename.
3059         (can_PRE_operation): Add COMPONENT_REF.
3060         (create_component_ref_by_pieces): New function.
3061         (create_expression_by_pieces): Use create_component_ref_by_pieces.
3062         (insert_aux): Move AGGREGATE_TYPE_P check here.
3063         (compute_avail): Set bb local stmt uids.
3064         (pass_pre): Use TODO_update_ssa_only_virtuals.
3065
3066 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3067
3068         * configure.ac: Unconditionally disable decimal float by default.
3069         * configure: Regenerate.
3070
3071 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3072
3073         * read-rtl.c (read_name): Terminate reading on EOF.
3074
3075 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3076
3077         * dfp.c (decimal_real_arithmetic): Change second argument type
3078         from int to enum tree_code. Do not always return true, but now
3079         return result of any call to decimal_do helper functions.
3080         * dfp.h (decimal_real_arithmetic): Update prototype.
3081
3082 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
3083
3084         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
3085
3086 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
3087
3088         PR tree-opt/25251
3089         * tree-cfg.c (cleanup_dead_labels): Also don't remove
3090         forced labels.
3091
3092 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
3093
3094         * tree-vrp.c (cfg_loops): Removed.
3095         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
3096         Use current_loops instead of cfg_loops.  Pass flags to
3097         loop_optimizer_init.
3098         * cfgloopmanip.c (fix_loop_structure): Update only available
3099         information.
3100         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
3101         loop_optimizer_init.
3102         * modulo-sched.c (build_loops_structure): Removed.
3103         (sms_schedule): Use loop_optimizer_init.
3104         * loop-init.c (loop_optimizer_init): Use flags to determine
3105         which properties of loops to prepare.
3106         (rtl_loop_init): Pass flags to loop_optimizer_init.
3107         * tree-ssa-sink.c (execute_sink_code): Ditto.
3108         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
3109         * tree-ssa-pre.c (init_pre): Ditto.
3110         * cfgloop.h (LOOPS_NORMAL): New.
3111         (loop_optimizer_init): Declaration changed.
3112
3113 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3114
3115         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
3116         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
3117         pa/t-pa.
3118         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
3119         pa/t-pa.
3120         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
3121         pa/x-ada.
3122         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
3123         * pa/t-pa64: Delete quadlib.c rule.
3124         * pa/x-ada: Revert last change.
3125         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
3126
3127 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
3128
3129         PR rtl-optimization/26087
3130         * rtlanal.c (canonicalize_condition): Do not cross basic block
3131         boundaries.
3132
3133 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
3134
3135         PR debug/24444
3136         * config/ia64/ia64.c: Include debug.h.
3137         (MAX_ARTIFICIAL_LABEL_BYTES): New.
3138         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
3139         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
3140         (process_epilogue, process_set, process_for_unwind_directive):
3141         Output unwind info only if requested.  Add CFA info if requested.
3142         Add new arguments as needed.  Adjust callers.
3143         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
3144         incorrect default.
3145         (DWARF2_FRAME_INFO): Define to zero.
3146         * config/ia64/unwind-ia64.c: Remove code that compensated for
3147         the CFA offset error fixed above.
3148         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
3149         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
3150         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
3151         -funwind-tables and -fexceptions to enable frame info.
3152         (dwarf2out_frame_init): Define initial CFA even if
3153         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
3154         DWARF2_UNWIND_INFO is nonzero, not just defined.
3155         (dwarf2out_frame_finish): Output non-EH call frame info only
3156         if DWARF2_FRAME_INFO is nonzero.
3157         (convert_cfa_to_loc_list,
3158         compute_frame_pointer_to_cfa_displacement): Define even if
3159         unwind info is not supported.
3160         (gen_subprogram_die): Use the above unconditionally.  Remove
3161         legacy alternate code.
3162         * toplev.c (compile_file): Compile in call to
3163         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
3164         (lang_dependent_init): Ditto for dwarf2out_frame_init.
3165
3166 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
3167             Jakub Jelinek  <jakub@redhat.com>
3168
3169         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
3170         IBM extended float format long double as "g" on powerpc*-linux.
3171
3172 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3173
3174         PR target/25926
3175         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
3176         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
3177
3178 2006-02-03  Jason Merrill  <jason@redhat.com>
3179
3180         PR c++/25979
3181         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
3182
3183         PR middle-end/25977
3184         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
3185         on the return slot if it's an NRV.
3186
3187 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
3188
3189         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
3190         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
3191         rewrite_use): Do not handle USE_OUTER.
3192         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
3193         add_iv_outer_candidates, may_replace_final_value,
3194         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
3195         (find_interesting_uses_op): Functionality of
3196         find_interesting_uses_outer_or_nonlin moved here.
3197         (find_interesting_uses_outside): Use find_interesting_uses_op.
3198
3199 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
3200
3201         PR target/25960
3202         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
3203
3204 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
3205             Ulrich Weigand  <uweigand@de.ibm.com>
3206
3207         PR target/25864
3208         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
3209         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
3210         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
3211         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
3212         and dxr fields.
3213         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
3214         (s390_rtx_costs): Use the new fields to calculate rtx costs.
3215         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
3216         Define secondary reloads for TFmode moves.
3217         (constant_modes): Add TFmode.
3218         (NR_C_MODES): Set to 8.
3219         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
3220         builtin define.
3221         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
3222         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
3223         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
3224         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
3225         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
3226         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
3227         (FPR mode macro): Add TFmode.
3228         (DSF mode macro): New.
3229         (<de>, <dee> mode attributes): Removed.
3230         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
3231         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
3232         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
3233         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
3234         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
3235         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
3236         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
3237         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
3238         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
3239         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
3240         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
3241         "*negabs<mode>2", "sqrt<mode>2"):
3242         Changed <de> to <xde>. R constraint replaced by <Rf>.
3243         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
3244         <Rf>.
3245         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
3246         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
3247         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
3248         splitters.
3249         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
3250         "extenddftf2", "extendsftf2"): New expanders.
3251         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
3252         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
3253         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
3254         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
3255         New options.
3256         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
3257         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
3258         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
3259         __floatditf): Add a GCC_4.1.0 symbol version tag.
3260         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
3261         the new options.
3262
3263 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
3264
3265         PR target/25377
3266         * config/i386/i386.c (ix86_function_ok_for_sibcall):
3267         Use targetm.binds_local_p instead of TREE_PUBLIC.
3268
3269 2006-02-02  Roger Sayle  <roger@eyesopen.com>
3270
3271         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
3272         on INTEGER_TYPEs to indicate that it denotes a character type.
3273         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
3274         signed_char_type_node, unsigned_char_type_node and char_type_node.
3275         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
3276         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
3277         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
3278
3279 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
3280             Daniel Berlin  <dberlin@dberlin.org>
3281
3282         * tree-tailcall.c (arg_needs_copy_p): New function.
3283         (eliminate_tail_call): Use arg_needs_copy_p.
3284         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
3285         (add_virtual_phis): New function.
3286
3287 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
3288
3289         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
3290         #ignore instead of #scratch for %g7 .register directive.
3291
3292 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
3293
3294         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
3295         object files.
3296
3297 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
3298
3299         * flow.c (calculate_global_regs_live): Assert that there aren't any
3300         EDGE_FAKE edges.
3301
3302 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
3303
3304         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
3305         what its name says.
3306         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
3307         bsi_after_labels iterator.
3308         * tree-if-conv.c (find_phi_replacement_condition,
3309         replace_phi_with_cond_modify_expr): Likewise.
3310         * tree-scalar-evolution.c (scev_const_prop): Likewise.
3311         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
3312
3313 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3314
3315         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
3316
3317 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3318
3319         PR 25990
3320         * tree-cfg.c (move_block_to_fn): Clear out the basic block
3321         array after growing it.
3322
3323 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3324
3325         PR middle-end/24901
3326         * fold-const.c (fold_checksum_tree): Change type of buf.
3327
3328 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
3329
3330         * reload.c (push_secondary_reload): Initialize t_icode.
3331
3332 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
3333
3334         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
3335         -msoft-float -mlong-double-128 only issue a warning, but don't
3336         swich to DFmode long double.
3337
3338 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
3339
3340         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
3341         has a constant equivalent, iterate over equivalents for arg0,
3342         calling simplify_relational_operation and if there's a result
3343         cheaper than X, apply fold_rtx and return the result.
3344
3345 2006-02-01  Jan Hubicka  <jh@suse.cz>
3346
3347         * opts.c (no_unit_at_a_time_default): New global variable.
3348         (decode_options): Use it.
3349         * opts.h (no_unit_at_a_time_default): Declare.
3350
3351 2006-02-01  Paul Brook  <paul@codesourcery.com>
3352
3353         * function.c (assign_parm_setup_reg): Use function argument promotion
3354         rules.
3355         * expr.c (expand_expr_real_1): Use function argument promotion rules
3356         for PARM_DECLs.
3357
3358 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3359
3360         * gcc.c (process_command): Change j to 'unsigned int'.
3361
3362 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3363
3364         PR middle-end/26001
3365         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
3366         Use the corrected index for the character
3367         out of the string constant.
3368
3369 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3370
3371         * mode-switching.c (optimize_mode_switching): Fix size
3372         allocated for bb_info[n_entities].
3373
3374 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3375
3376         * gcc.c (main): Correct type that is allocated for
3377         explicit_link_files.
3378
3379 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3380
3381         * config/s390/s390.c (init_alignment_context): Set
3382         ALIAS_SET_MEMORY_BARRIER on the MEM.
3383         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3384
3385 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3386
3387         PR middle-end/25933
3388         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3389         dom_bbs pointer.
3390         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3391         call to tpa_init.
3392
3393 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3394
3395         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3396         * regrename.c: Ditto.
3397         * tree-ssa-loop-im.c: Ditto.
3398         * tree-dump.c: Ditto.
3399         * tree-complex.c: Ditto.
3400         * genrecog.c: Ditto.
3401         * tree-ssa-threadupdate.c: Ditto.
3402         * tracer.c: Ditto.
3403         * java/class.c: Ditto.
3404         * java/jcf-parse.c: Ditto.
3405         * java/resource.c: Ditto.
3406         * java/except.c: Ditto.
3407         * java/jvspec.c: Ditto.
3408         * java/jcf-write.c: Ditto.
3409         * java/jcf-path.c: Ditto.
3410         * java/gjavah.c: Ditto.