gcc/ChangeLog

   1 2004-07-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
   2
   3         * pa.md (prefetch, prefetch_32, prefetch_64): Only allow short
   4         displacements with the spatial-locality cache-control completer.
   5
   6 2004-07-05  Zack Weinberg  <zack@codesourcery.com>
   7
   8         * langhooks.c: Don't include gt-langhooks.h.
   9         (var_labelno): Delete.
  10         (lhd_set_decl_assembler_name): Do not append a distinguishing
  11         number to file-scope internal-linkage declarations for the first
  12         input file, even if they have DECL_CONTEXT set.  Use DECL_UID of
  13         the declaration itself (if at block scope), or its containing
  14         TRANSLATION_UNIT_DECL (if at file scope) for the distinguishing
  15         number.
  16
  17         * opts.c (cur_in_fname): New global.
  18         * opts.h: Declare it.
  19         * tree.c: Include opts.h.
  20         (make_node_stat): If creating a TRANSLATION_UNIT_DECL, give it
  21         DECL_UID equal to cur_in_fname.
  22         (copy_node_stat): Do not change DECL_UID when copying a
  23         TRANSLATION_UNIT_DECL.
  24         (build_common_tree_nodes): Adjust next_decl_uid to reserve the
  25         range 0 .. num_in_fnames-1 for TRANSLATION_UNIT_DECLs.
  26
  27         * c-decl.c (c_static_assembler_name): Delete.
  28         * c-tree.h (c_static_assembler_name): Delete prototype.
  29         * c-lang.c, objc/objc-lang.c: Don't override
  30         LANG_HOOKS_SET_DECL_ASSEMBLER_NAME.
  31
  32         * Makefile.in (tree.o): Update dependencies.
  33         (GTFILES): Remove langhooks.c.
  34
  35 2004-07-05  Roger Sayle  <roger@eyesopen.com>
  36
  37         * fold-const.c (fold) <TRUNC_MOD_EXPR>: Optimize unsigned modulus
  38         by a power of two into a bit-wise AND, i.e. "X % C" as "X & (C-1)".
  39         Normalize "X % C" as "X % -C" for signed modulus and negative C.
  40         Optimize "X % -Y" as "X % Y" for signed modulus.
  41         <EQ_EXPR>: Recursively call "fold" when transforming "(X % Y) == 0"
  42         into "((unsigned) X % Y) == 0".
  43
  44 2004-07-05  Joseph S. Myers  <jsm@polyomino.org.uk>
  45
  46         * sourcebuild.texi (Config Fragments): Use @comma{} in
  47         cross-reference to section title.
  48
  49 2004-07-05  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
  50
  51         * tree.h (DECL_SEEN_IN_BIND_EXPR_P): New macro.
  52         * gimplify.c (gimple_add_tmp_var, gimplify_bind_expr): Use it.
  53         (gimplify_target_expr, gimplify_expr): Likewise.
  54         (copy_if_shared_r): No longer need special case for BIND_EXPR.
  55         (unshare_body, unvisit_body): Only look at nested if BODY_P is
  56         whole function.
  57         (gimplify_compound_lval): See if we can strip any useless conversion.
  58         (gimplify_modify_expr, gimplify_modify_expr_to_memcpy): Take size
  59         from RHS, not LHS.
  60         (gimplify_modify_expr_to_memset): Likewise.
  61         (gimplify_expr, case CONSTRUCTOR): Handle use as statement.
  62         * tree-inline.c (setup_one_parameter): Use DECL_SEEN_IN_BIND_EXPR_P.
  63         (declare_inline_vars): Likewise.
  64         (walk_type_fields): New function.
  65         (walk_tree): Use it.
  66         * tree-nested.c (create_tmp_var_for): Show seen in BIND_EXPR.
  67
  68         * tree-sra.c (struct sra_walk_fns): Init function now returns bool.
  69         (sra_walk_modify_expr): Allow init function to fail.
  70         (scan_init): Now returns bool.
  71         (generate_element_init): If can't understand INIT, return false.
  72         (scalarize_init): Return false if generate_element_init does.
  73
  74         * tree-pretty-print.c (dump_generic_node, case ARRAY_TYPE): Properly
  75         print bounds.
  76
  77         * expr.c (expand_expr_real_1, case SWITCH_EXPR): Don't check against
  78         bounds if bounds aren't constant.
  79
  80         * tree-cfg.c (verify_expr): Use CHECK_OP in binary case.
  81
  82         * function.c, langhooks-def.h, langhooks.h: Move max_size hook
  83         to type hooks; remove bogus PARAMS.
  84
  85 2004-07-05  Nathan Sidwell  <nathan@codesourcery.com>
  86
  87         * c-tree.h (TYPE_ACTUAL_ARG_TYPES): Use TYPE_LANG_SLOT_1.
  88         * dwarf2out.c (add_data_member_location_attribute): Check for
  89         TREE_BINFO.
  90         * tree.c (tree_node_kinds): Add "binfos".
  91         (binfo_lang_slots): New.
  92         (make_node_stat): Add TREE_BINFO.
  93         (make_tree_binfo_stat): New.
  94         (tree_node_structure): Add TREE_BINFO.
  95         * tree.def (TREE_BINFO): New.
  96         * tree.h (REC_OR_UNION_CHECK): Rename to ...
  97         (RECORD_OR_UNION_CHECK): ... here.
  98         (NOT_RECORD_OR_UNION_CHECK): New.
  99         (TRE_VIA_VIRTUAL): Allow TREE_LIST or TREE_BINFO.
 100         (TYPE_FIELDS, TYPE_METHODS, TYPE_VFIELD): Adjust for
 101         RECORD_OR_UNION_CHECK.
 102         (TYPE_BINFO): Use RECORD_OR_UNION_CHECK.
 103         (TYPE_LANG_SLOT_1): New.
 104         (BINFO_TYPE, BINFO_OFFSET, BINFO_VTABLE, BINFO_VIRTUALS,
 105         BINFO_BASETYPES, TYPE_BINFO_BASETYPES, BINFO_VPTR_FIELD,
 106         BINFO_BASEACCESSES, BINFO_INHERITANCE_CHAIN): Adjust.
 107         (BINFO_ELTS): Remove.
 108         (BINFO_LANG_SLOT): New.
 109         (struct tree_binfo): New.
 110         (binfo_lang_slots): Declare.
 111         (enum tree_node_structure_enum): Add TS_BINFO.
 112         (union tree_node): Add binfo.
 113         (make_tree_binfo_stat): Declare.
 114         (make_tree_binfo): New.
 115         (enum tree_node_kind): Add binfo_kind.
 116
 117         * objc/objc-act.c (start_class, objc_declare_protocols,
 118         start_protocols): Use TYPE_LANG_SLOT_1.
 119         * objc/objc-act.h (CLASS_BINFO_ELTS, PROTOCOL_BINFO_ELTS): Rename
 120         to ...
 121         (CLASS_LANG_SLOT_ELTS, PROTOCOL_LANG_SLOT_ELTS): ... here.
 122         (CLASS_IVARS, CLASS_RAW_IVARS, CLASS_STATIC_TEMPLATE,
 123         CLASS_CATEGORY_LIST, CLASS_PROTOCOL_LIST, CLASS_OWN_IVARS,
 124         PROTOCOL_LIST, PROTOCOL_FORWARD_DECL): Use TYPE_LANG_SLOT_1.
 125
 126 2004-07-05  Steven Bosscher  <stevenb@suse.de>
 127
 128         * rtl.h (struct rtx_def): Remove the integrated flag.
 129         Use the return_val flag for MEM_SCALAR_P.
 130         Reshuffle and update flags in CLEAR_RTX_FLAGS.
 131
 132 2004-07-05  Richard Sandiford  <rsandifo@redhat.com>
 133
 134         PR target/16357
 135         * config/mips/mips.c (mips_block_move_straight): Pass BLKmode memrefs
 136         to mips_expand_unaligned_load, mips_expand_unaligned_store, and
 137         move_by_pieces.
 138
 139 2004-07-05  Josef Zlomek  <zlomekj@suse.cz>
 140
 141         * var-tracking.c: Fix some comments.
 142         (frame_stack_adjust): New.
 143         (vt_stack_adjustments): Init stack_adjust of entry block to
 144         minus stack adjustment of function prologue.
 145         (adjust_stack_reference): Do not adjust if adjustment == 0.
 146         (compute_bb_dataflow): Use plus_constant instead of gen_rtx_PLUS.
 147         (emit_notes_in_bb): Likewise.
 148         (vt_add_function_parameters): Do not adjust locations of
 149         function arguments.
 150         (vt_initialize): Compute the stack adjustment of function
 151         prologue and offset the initial "location" of frame_base_decl
 152         from the stack pointer after prologue.
 153
 154 2004-07-04  Richard Henderson  <rth@redhat.com>
 155
 156         * function.c (struct assign_parm_data_all): New.
 157         (struct assign_parm_data_one): New.
 158         (assign_parms_initialize_all, assign_parms_augmented_arg_list,
 159         assign_parm_find_data_types, assign_parms_setup_varargs,
 160         assign_parm_find_entry_rtl, assign_parm_is_stack_parm,
 161         assign_parm_find_stack_rtl, assign_parm_adjust_entry_rtl,
 162         assign_parm_adjust_stack_rtl, assign_parm_setup_block_p,
 163         assign_parm_setup_block, assign_parm_setup_reg,
 164         assign_parm_setup_stack, assign_parms_unsplit_complex): Split from ...
 165         (assign_parms): ... here.
 166
 167 2004-07-04  Daniel Berlin  <dberlin@dberlin.org>
 168
 169         * tree-ssa-pre.c (bb_value_sets): phi_gen, tmp_gen, new_sets
 170         now are bitmap_set_t's.
 171         (bitmap_insert_into_set): No point in inserting the value if
 172         it's invariant.
 173         (bitmap_set_contains): New function.
 174         (bitmap_set_replace_value): Add comment on why we do it
 175         this way.
 176         (set_contains): Removed.
 177         (bitmap_set_subtract_from_value_set): New name of
 178         set_subtract now that it's arguments are two different
 179         types of sets.
 180         Update callers.
 181         (bitmap_find_leader): Change algorithm used.
 182         (find_or_generate_expression): Update use of functions for new
 183         bitmap sets.
 184         (create_expression_by_pieces): Ditto.
 185         (insert_aux): Ditto.
 186         (insert): Ditto.
 187         (add_to_sets): Ditto.
 188         (init_pre): Ditto.
 189         (execute_pre): Ditto.
 190         (compute_avail): Ditto.
 191         Also ignore virtual phis.
 192
 193 2004-07-04  Richard Sandiford  <rsandifo@redhat.com>
 194
 195         * combine.c (simplify_comparison): Fix comment typo.
 196
 197 2004-07-04  Eric Botcazou  <ebotcazou@libertysurf.fr>
 198
 199         * config/sparc/sparc.c (SIBCALL_SLOT_EMPTY_P): Rename
 200         into LEAF_SIBCALL_SLOT_RESERVED_P after negation.
 201         (eligible_for_sibcall_delay): Adjust use of SIBCALL_SLOT_EMPTY_P.
 202         (output_restore): Change parameter from 'insn' to 'pat'.
 203         (output_return): Adjust call to output_restore.
 204         (output_sibcall): Adjust use of SIBCALL_SLOT_EMPTY_P.
 205         Adjust call to output_restore.
 206
 207 2004-07-04  Neil Booth  <neil@duron.akihabara.co.uk>
 208
 209         * config/netbsd.h (NETBSD_OS_CPP_BUILTINS_COMMON): Define __unix__
 210         and assert system is bsd.
 211
 212 2004-07-04  Richard Sandiford  <rsandifo@redhat.com>
 213
 214         * config/mips/mips.h (MASK_DEBUG_C, TARGET_DEBUG_C_MODE): Delete.
 215         (TARGET_SWITCHES): Remove -mdebugc.
 216         * config/mips/mips.md (seq, sne, sgt, sge, slt, sle, sgtu, sgeu)
 217         (sltu, sleu): Remove TARGET_DEBUG_C_MODE handling.
 218         (seq_[sd]i, sne_[sd]i, sge_[sd]i, sle_[sd]i_reg, sgeu_[sd]i)
 219         (sle_[sd]i_reg): Delete.
 220
 221 2004-07-04  Steven Bosscher  <stevenb@suse.de>
 222
 223         * config/iq2000/iq2000.c (TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE):
 224         Define.
 225         * config/iq2000/iq2000.md: Translate old pipeline description to an
 226         equivalent new one.
 227
 228 2004-07-04  Roger Sayle  <roger@eyesopen.com>
 229
 230         * tree-ssa-ccp.c (set_rhs): Change function to return a bool.
 231         Ensure the replacement rhs is valid gimple before performing
 232         the substitution.  Return false if these sanity checks fail.
 233         (fold_stmt): Only set changed to true, if set_rhs returns true.
 234         (execute_fold_all_builtins): Only call modify_stmt if set_rhs
 235         succeeds.
 236
 237 2004-07-04  Richard Henderson  <rth@redhat.com>
 238
 239         PR c/16348
 240         * c-typeck.c (c_finish_loop): Don't clear cond for cond_is_first loops.
 241
 242 2004-07-04  Mark Mitchell  <mark@codesourcery.com>
 243
 244         * configure.ac (ranlib_flags): New variable.
 245         * Makefile.in (RANLIB_FLAGS): New variable.
 246         (libbackend.a): Use it.
 247         * configure: Regenerated.
 248
 249 2004-07-04  Roger Sayle  <roger@eyesopen.com>
 250
 251         * ifcvt.c (noce_try_sign_mask): Call emit_store_flag to generate
 252         a "sign mask" instead of using ashr_optab directly.
 253
 254 2004-07-04  Neil Booth  <neil@duron.akihabara.co.uk>
 255
 256         * doc/cpp.texi: Don't document what we do for ill-formed expressions.
 257         * doc/cppopts.texi: Clarify processing of command-line defines.
 258
 259 2004-07-04  Gerald Pfeifer  <gerald@pfeifer.com>
 260
 261         * doc/contrib.texi (Contributors): Adjust link for GNU Classpath.
 262
 263 2004-07-04  Richard Henderson  <rth@redhat.com>
 264
 265         * rtl.def (ADDRESSOF): Remove.
 266         * alias.c (rtx_equal_for_memref_p): Don't handle addressof.
 267         (find_base_term, memrefs_conflict_p): Likewise.
 268         * cse.c (fixed_base_plus_p, find_best_addr: Likewise.
 269         (fold_rtx, cse_insn, set_live_p): Likewise.
 270         * dwarf2out.c (mem_loc_descriptor): Likewise.
 271         (add_location_or_const_value_attribute): Likewise.
 272         * emit-rtl.c (copy_insn_1): Likewise.
 273         * explow.c (memory_address): Likewise.
 274         * expmed.c (store_split_bit_field): Likewise.
 275         * expr.c (expand_expr_real_1): Likewise.
 276         * function.c (instantiate_decl
 277         (instantiate_virtual_regs_1, fix_lexical_addr): Likewise.
 278         * genrecog.c (preds, validate_pattern): Likewise.
 279         * integrate.c (copy_rtx_and_substitute): Likewise.
 280         * recog.c (general_operand, register_operand): Likewise.
 281         (memory_address_p): Likwise.
 282         * reload1.c (eliminate_regs, elimination_effects): Likewise.
 283         * rtl.c (copy_rtx): Likewise.
 284         * rtlanal.c (rtx_unstable_p, rtx_varies_p): Likewise.
 285         (rtx_addr_can_trap_p, nonzero_address_p, address_cost): Likewise.
 286         * rtlhooks.c (gen_lowpart_general): Likewise.
 287         * stmt.c (expand_asm_operands): Likewise.
 288         * web.c (entry_register, replace_ref, web_main): Likewise.
 289         * config/alpha/alpha.c (input_operand, alpha_legitimate_address_p,
 290         alpha_expand_block_move, alpha_expand_block_clear): Likewise.
 291         * config/arm/arm.c (thumb_rtx_costs): Likewise.
 292         * config/c4x/c4x.c (c4x_valid_operands): Likewise.
 293         * config/frv/frv.c (move_destination_operand, move_source_operand,
 294         condexec_dest_operand, condexec_source_operand,
 295         condexec_memory_operand): Likewise.
 296         * config/h8300/h8300.h (PREDICATE_CODES): Likewise.
 297         * config/ia64/ia64.c (general_xfmode_operand): Likewise.
 298         (destination_xfmode_operand): Likewise.
 299         * config/mips/mips.h (PREDICATE_CODES): Likewise.
 300         * config/mn10300/mn10300.c (mn10300_address_cost_1): Likewise.
 301         * config/s390/s390.c (general_s_operand): Likewise.
 302         * config/s390/s390.md (mov*): Likewise.
 303         * config/sparc/sparc.h (PREDICATE_CODES): Likewise.
 304
 305         * c-typeck.c (c_mark_addressable): Don't put_var_into_stack.
 306         * expr.c (expand_expr_real_1): Likewise.
 307         * stmt.c (expand_decl): Likewise.
 308         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
 309
 310         * function.c (struct fixup_replacement, struct insns_for_mem_entry,
 311         postponed_insns, put_var_into_stack, put_reg_into_stack,
 312         schedule_fixup_var_refs, fixup_var_refs, find_fixup_replacement,
 313         fixup_var_refs_insns, fixup_var_refs_insns_with_hash,
 314         fixup_var_refs_insn, fixup_var_refs_1, fixup_memory_subreg,
 315         walk_fixup_memory_subreg, fixup_stack_1, optimize_bit_field,
 316         gen_mem_addressof, flush_addressof, put_addressof_into_stack,
 317         purge_bitfield_addressof_replacements, purge_addressof_replacements,
 318         purge_addressof_1, insns_for_mem_hash, insns_for_mem_comp,
 319         struct insns_for_mem_walk_info, insns_for_mem_walk,
 320         compute_insns_for_mem, is_addressof, purge_addressof, setjmp_protect,
 321         setjmp_protect_args): Remove.
 322         (push_function_context_to): Don't handle var_refs_queue.
 323         (pop_function_context_from, free_after_compilation): Likewise.
 324         (instantiate_virtual_regs): Don't handle parm_reg_stack_loc.
 325         (assign_parms, allocate_struct_function): Likewise.
 326         (use_register_for_decl): New.
 327         (expand_function_end): Don't setjmp_protect.
 328         * function.h (struct emit_status): Update commentary.
 329         (struct function): Remove x_max_parm_reg, x_parm_reg_stack_loc.
 330         (max_parm_reg, parm_reg_stack_loc): Remove.
 331         * passes.c (DFI_addressof): Remove.
 332         (dump_file_info): Remove addressof.
 333         (rest_of_handle_addressof): Remove.
 334         (rest_of_compilation): Don't call it.
 335         * rtl.h (ADDRESSOF_REGNO, ADDRESSOF_DECL): Remove.
 336         * stmt.c (expand_decl): Use use_register_for_decl.
 337         * tree.h: Update decls.
 338         * web.c (mark_addressof): Remove.
 339         * doc/invoke.texi (-dF): Remove.
 340
 341 2004-07-03  Richard Henderson  <rth@redhat.com>
 342
 343         * config/ia64/ia64.c (spill_xfmode_operand): Use assign_stack_temp
 344         instead of gen_mem_addressof.
 345         * config/ia64/ia64.md (movxf): Use assign_stack_temp to handle
 346         TImode output register.
 347
 348 2004-07-03  Richard Henderson  <rth@redhat.com>
 349
 350         PR tree-optimization/16341
 351         * tree-sra.c (sra_walk_function): Increment to next stmt before
 352         processing the current stmt.
 353         (sra_insert_after): Always use BSI_SAME_STMT.
 354
 355 2004-07-03  Richard Henderson  <rth@redhat.com>
 356
 357         * tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Don't fold
 358         fp plus with minus.
 359
 360 2004-07-03  Joseph S. Myers  <jsm@polyomino.org.uk>
 361
 362         * tree.c (type_hash_eq): Allow TYPE_MIN_VALUE which compares equal
 363         with tree_int_cst_equal.
 364
 365 2004-07-03  Andreas Schwab  <schwab@suse.de>
 366
 367         * config/ia64/ia64.md: Define new attribute "empty".
 368         (prologue_use, nop_x, insn_group_barrier): Set it.
 369
 370         * config/ia64/ia64.c (ia64_reorg): When looking for trailing call
 371         skip over "empty" insns.
 372
 373 2004-07-03  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 374
 375         * tree-inline.c (initialize_inlined_parameters): Pass proper function
 376         context to gimplify_body.
 377         (walk_tree): Don't walk into types twice.
 378         (walk_tree, case POINTER_TYPE): Deal with mutually recursive pointers.
 379
 380         * tree-sra.c (generate_element_init): Remove any useless conversions.
 381
 382         * gimplify.c (gimplify_conversion): Remove stripping useless
 383         conversions from here.
 384         (gimplify_expr): Put it here, in place of call to STRIP_MAIN_TYPE_NOPS.
 385         (gimplify_modify_expr_to_memcpy, gimplify_variable_sized_compare):
 386         Unshare before substituting PLACEHOLDER_EXPR.
 387         (gimplify_modify_expr_to_memset): Likewise.
 388         Pass address of TO to memset, not TO itself.
 389         (gimplify_init_constructor): Make copy of OBJECT so we have it each
 390         time we make an expression (to match a PLACEHOLDER_EXPR).
 391
 392         * tree-ssa.c (tree_ssa_useless_type_conversion): Also look at
 393         VIEW_CONVERT_EXPR and NON_LVALUE_EXPR.
 394         * tree-ssa-ccp.c (fold_stmt): Call just STRIP_USELESS_TYPE_CONVERSION.
 395         * tree-ssa-dom.c (local_fold): Likewise.
 396
 397         * langhooks-def.h (LANG_HOOKS_TYPE_MAX_SIZE): New langhook.
 398         * langhooks.h (strct lang_hooks): New field type_max_size.
 399         * function.c (assign_temp): Call it.
 400
 401 2004-07-03  Steven Bosscher  <stevenb@suse.de>
 402
 403         * config/sh/sh.c (sh_use_dfa_interface): Add TARGET_SH1.
 404         * config/sh/sh.md: Convert the SH1 pipeline description to
 405         a DFA model.
 406
 407 2004-07-02  Zack Weinberg  <zack@codesourcery.com>
 408
 409         * c-decl.c (struct c_binding): Remove contour field; add
 410         depth, invisible, nested fields.
 411         (B_IN_SCOPE, B_IN_CURRENT_SCOPE, B_IN_FILE_SCOPE)
 412         (B_IN_EXTERNAL_SCOPE): New convenience macros.
 413         (bind): Add invisible and nested arguments. Initialize
 414         new fields of struct c_binding; adjust loop scanning for
 415         insertion point.
 416         (free_binding_and_advance): Clear structure with memset.
 417         (pop_scope): Adjust to match.  Set DECL_CONTEXT on everything
 418         in file scope, even if it's in external scope too.
 419         (pushdecl): Adjust to match.  Create invisible file-scope
 420         declarations for block-scope forward declarations of static functions.
 421         (pushtag, warn_if_shadowing, pushdecl_top_level, implicitly_declare)
 422         (undeclared_variable, lookup_label, declare_label, define_label)
 423         (lookup_tag, lookup_name, lookup_name_in_scope, builtin_function)
 424         (c_make_fname_decl, store_parm_decls_newstyle, identifier_global_value)
 425         (store_parm_decls_oldstyle): Adjust to match.
 426         (diagnose_mismatched_decls): Correct handling of linkage clashes.
 427         (merge_decls): No need to copy C_DECL_IN_EXTERNAL_SCOPE.
 428
 429         * c-tree.h (C_DECL_IN_EXTERNAL_SCOPE): Delete.
 430         (C_DECL_DECLARED_BUILTIN, C_DECL_REGISTER): Slide down one.
 431
 432 2004-07-02  Richard Henderson  <rth@redhat.com>
 433
 434         * c-decl.c (grokdeclarator): Don't frob current_function_decl
 435         around variable_size.
 436         (set_decl_nonlocal): Remove.
 437         (store_parm_decls): Add stmts for pending sizes.
 438         * calls.c (calls_function, calls_function_1): Remove.
 439         (precompute_arguments): Don't call it.
 440         * cfgexpand.c (set_save_expr_context): Remove.
 441         (tree_expand_cfg): Don't call it.
 442         * dwarf2out.c (add_bound_info): Don't handle SAVE_EXPR.
 443         (dwarf2out_finish): Likewise.
 444         * expr.c (emit_block_move): Adjust addresses to BLKmode.
 445         (store_constructor): Don't pre-evaluate SAVE_EXPR.
 446         (safe_from_p): Don't queue SAVE_EXPRs.
 447         (expand_expr_real_1 <case SAVE_EXPR>): Rewrite to expect,
 448         or build plain VAR_DECLs.
 449         * fold-const.c (twoval_comparison_p): Don't look at SAVE_EXPR_RTL.
 450         (fold): Likewise.
 451         (fold_checksum_tree): Don't special-case SAVE_EXPR.
 452         * function.c (free_after_compilation): Don't clear x_save_expr_regs.
 453         (put_var_into_stack): Don't handle SAVE_EXPR.
 454         (gen_mem_addressof): Likewise.
 455         * function.h (struct function): Remove x_save_expr_regs.
 456         (save_expr_regs): Remove.
 457         * gengtype.c (adjust_field_tree_exp): Don't special-case SAVE_EXPR.
 458         * print-tree.c (print_node): Don't dump SAVE_EXPR_NOPLACEHOLDER.
 459         * stor-layout.c (variable_size): Don't set it.
 460         (force_type_save_exprs, force_type_save_exprs_1): Remove.
 461         * tree-inline.c (remap_save_expr): Remove fn argument.  Update
 462         all callers.  Don't set SAVE_EXPR_CONTEXT.
 463         * tree-inline.h (remap_save_expr): Update decl.
 464         * tree.c (save_expr): Update build size.
 465         (first_rtl_op): Don't handle SAVE_EXPR.
 466         (unsave_expr_1, contains_placeholder_p): Likewise.
 467         (decl_function_context): Likewise.
 468         * tree.def (SAVE_EXPR): Remove args 1 and 2.
 469         * tree.h (SAVE_EXPR_CONTEXT, SAVE_EXPR_RTL): Remove.
 470         (SAVE_EXPR_NOPLACEHOLDER, SAVE_EXPR_PERSISTENT_P): Remove.
 471
 472 2004-07-03  Joseph S. Myers  <jsm@polyomino.org.uk>
 473
 474         * doc/bugreport.texi, doc/configterms.texi, doc/contrib.texi,
 475         doc/contribute.texi, doc/cpp.texi, doc/cppinternals.texi,
 476         doc/extend.texi, doc/install.texi, doc/invoke.texi, doc/md.texi,
 477         doc/portability.texi, doc/tree-ssa.texi, doc/trouble.texi: Avoid
 478         some first-person references and patronizing comments.  Based on
 479         printed manual.
 480         * doc/invoke.texi: Don't reference fortran@gnu.org.
 481         * doc/trouble.texi (Warning when a non-void function value is
 482         ignored): Rewrite.  From Russ Allbery and Chris Devers.
 483
 484 2004-07-02  Daniel Berlin  <dberlin@dberlin.org)
 485
 486         * tree-ssa-pre.c (bitmap_set_t): New.
 487         (bb_value_sets): avail_out is now a bitmap_set_t.
 488         (bitmap_find_leader): New function.
 489         (bitmap_value_insert_into_set): Ditto.
 490         (bitmap_set_copy): Ditto.
 491         (bitmap_value_replace_in_set): Ditto.
 492         (bitmap_set_contains_value): Ditto.
 493         (bitmap_set_new): Ditto.
 494         (bitmap_set_pool): New pool.
 495         (find_or_generate_expression): Use bitmap_ functions on AVAIL sets.
 496         (insert_aux): Ditto.
 497         (add_to_sets): Ditto.
 498         (compute_avail): Ditto
 499         (eliminate): Ditto.
 500         (init_pre): Ditto.
 501         (fini_pre): Ditto.
 502         (execute_pre): Ditto.
 503
 504 2004-07-02  Roger Sayle  <roger@eyesopen.com>
 505
 506         * config/rs6000/rs6000.c (struct processor_costs): New structure
 507         used to hold instruction latencies/sizes for processor types.
 508         (rs6000_cost): New global variable pointing to current CPU's costs.
 509         (rs6000_override_options): Initialize rs6000_cost to point to the
 510         appropriate cost table based upon rs6000_cpu and optimize_size.
 511         (rs6000_rtx_costs): Use rs6000_cost to avoid hardcoding processor
 512         timings inline.
 513
 514 2004-07-02  Richard Henderson  <rth@redhat.com>
 515
 516         * expmed.c (make_tree): Don't use SET_DECL_RTL.
 517
 518 2004-07-02  Steven Bosscher  <stevenb@suse.de>
 519
 520         * tree-flow.h (bb_ann_d): Remove ephi_nodes field.
 521
 522 2004-07-01  Richard Henderson  <rth@redhat.com>
 523
 524         * config/alpha/alpha.c (struct machine_function): Add gp_save_rtx.
 525         (alpha_gp_save_rtx): Use assign_stack_local instead of
 526         gen_mem_addressof.
 527
 528 2004-07-01  Richard Henderson  <rth@redhat.com>
 529
 530         * config/alpha/alpha.c (struct alpha_rtx_cost_data): Add int_div.
 531         (alpha_rtx_cost_data): Update to match.
 532         (alpha_rtx_cost_size): New.
 533         (alpha_rtx_costs): Honor optimize_size.
 534
 535 2004-07-01  Richard Henderson  <rth@redhat.com>
 536
 537         * gimple-low.c (lower_function_body): Don't reset_block_changes here.
 538         * cfgexpand.c (tree_expand_cfg): Do it here.
 539         * config/alpha/alpha.c (alpha_output_mi_thunk_osf): And here.
 540         * config/ia64/ia64.c (ia64_output_mi_thunk): And here.
 541         * config/mips/mips.c (mips_output_mi_thunk): And here.
 542         * config/rs6000/rs6000.c (rs6000_output_mi_thunk): And here.
 543         * config/sh/sh.c (sh_output_mi_thunk): And here.
 544         * config/sparc/sparc.c (sparc_output_mi_thunk): And here.
 545
 546 2004-07-01  Richard Henderson  <rth@redhat.com>
 547
 548         * tree.def (RTL_EXPR): Remove.
 549         * c-typeck.c (lvalue_p): Don't handle it.
 550         * expr.c (safe_from_p): Likewise.
 551         (expand_expr_real_1): Likewise.
 552         * fold-const.c (non_lvalue, operand_equal_p, fold): Likewise.
 553         (fold_checksum_tree, tree_expr_nonnegative_p): Likewise.
 554         * gengtype.c (adjust_field_tree_exp): Likewise.
 555         * stmt.c (warn_if_unused_value): Likewise.
 556         * tree-gimple.c (recalculate_side_effects): Likewise.
 557         * tree-pretty-print.c (dump_generic_node): Likewise.
 558         * tree.c (make_node_stat, first_rtl_op, unsave_expr_1): Likewise.
 559         (unsafe_for_reeval, stabilize_reference, build1_stat): Likewise.
 560         * tree.h (RTL_EXPR_SEQUENCE, RTL_EXPR_RTL, RTL_EXPR_ALT_RTL): Remove.
 561
 562         * stmt.c (struct stmt_status): Remove x_last_expr_type,
 563         x_last_expr_value, x_last_expr_alt_rtl, x_expr_stmts_for_value.
 564         (last_expr_type, last_expr_value, last_expr_alt_rtl): Remove.
 565         (expand_expr_stmt): Merge with expand_expr_stmt_value.  Remove
 566         all the bits that tracked last_expr.
 567         (expand_end_bindings): Don't track last_expr.
 568         (expand_start_stmt_expr, expand_end_stmt_expr): Remove.
 569         (clear_last_expr): Remove.
 570         (expand_asm): Don't call it.
 571         (expand_asm_operands, expand_end_cond): Likewise.
 572         (expand_naked_return, expand_null_return_1): Likewise.
 573         * c-typeck.c (c_begin_compound_stmt): Likewise.
 574         * cfgexpand.c (expand_block): Use expand_expr_stmt.
 575         * expr.c (expand_expr_real_1): Likewise.
 576         * tree.h: Update prototypes.
 577
 578         * function.h (struct sequence_stack): Remove sequence_rtl_expr.
 579         (struct emit_status): Remove sequence_rtl_expr.
 580         (struct function): Remove x_rtl_expr_chain.
 581         (seq_rtl_expr, rtl_expr_chain): Remove.
 582         * function.c (struct temp_slot): Remove rtl_expr.
 583         (assign_stack_temp_for_type): Don't set it.
 584         (free_temp_slots, pop_temp_slots): Don't check it.
 585         (free_after_compilation): Don't clear x_rtl_expr_chain.
 586         (fixup_var_refs): Don't search it.
 587         (preserve_rtl_expr_result, free_temps_for_rtl_expr): Remove.
 588         * emit-rtl.c (start_sequence): Don't use sequence_rtl_expr
 589         or seq_rtl_expr.
 590         (push_topmost_sequence): Likewise.
 591         (end_sequence, init_emit): Likewise.
 592         (start_sequence_for_rtl_expr): Remove.
 593         * expmed.c (make_tree): Build a VAR_DECL instead of an RTL_EXPR.
 594         * rtl.h (preserve_rtl_expr_result): Remove.
 595
 596 2004-07-02  Kazu Hirata  <kazu@cs.umass.edu>
 597
 598         * ifcvt.c, modulo-sched.c, tree-alias-common.c, tree-sra.c,
 599         tree-ssa-copy.c, tree-ssa-dom.c, tree-ssa-pre.c: Fix comment
 600         typos.
 601
 602 2004-07-02  Aaron W. LaFramboise <aaronraolete36@aaronwl.com>
 603
 604         * gcc.c (STANDARD_STARTFILE_PREFIX_1): Define.
 605         (STANDARD_STARTFILE_PREFIX_2): Define.
 606         (standard_startfile_prefix_1): Initialize to
 607         STANDARD_STARTFILE_PREFIX_1.
 608         (standard_startfile_prefix_2): Initialize to
 609         STANDARD_STARTFILE_PREFIX_2.
 610         * config/i386/mingw32.h (MD_STARTFILE_PREFIX): Remove.
 611         (STANDARD_STARTFILE_PREFIX_1): Define.
 612         (STANDARD_STARTFILE_PREFIX_2): Define.
 613         * doc/tm.texi (STANDARD_STARTFILE_PREFIX_1): Document.
 614         (STANDARD_STARTFILE_PREFIX_2): Document.
 615
 616 2004-07-01  Richard Henderson  <rth@redhat.com>
 617
 618         * tree-sra.c (sra_walk_expr): Don't maybe_lookup_element_for_expr
 619         in order to disable scalarization.  Instead set a flag and wait
 620         for a candidate decl.
 621
 622 2004-07-01  Joseph S. Myers  <jsm@polyomino.org.uk>
 623
 624         * doc/cppinternals.texi, doc/install.texi, doc/invoke.texi,
 625         doc/md.texi, doc/sourcebuild.texi, doc/tm.texi, doc/trouble.texi:
 626         Use terminology "testsuite" and "enumerated".
 627
 628 2004-07-01  Richard Henderson  <rth@redhat.com>
 629
 630         * dwarf2out.c (reg_save): Use INVALID_REGNUM.
 631         (dwarf2out_reg_save, dwarf2out_return_save): Likewise.
 632         (initial_return_save): Likewise.
 633         (flush_queued_reg_saves): Remap register numbers.
 634         (dwarf2out_return_reg): Likewise.
 635
 636 2004-07-01  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 637
 638         * gimplify.c (gimplify_one_sizepos): Don't do anything if any VAR_DECL.
 639
 640         * tree-pretty-print.c (dump_generic_node, case ARRAY_REF): Use
 641         access functions for lower bound and element size and only output
 642         if lower bound nonzero or element size not same as that of type.
 643         (dump_generic_node, case COMPONENT_REF): Use access func. for offset.
 644
 645 2004-07-01  Paolo Bonzini  <bonzini@gnu.org>
 646
 647         * c-pretty-print.c (pp_c_postfix_expression): Fix pasto.
 648
 649 2004-07-01  Per Bothner  <per@bothner.com>
 650
 651         * final.c (final):  Fix typo reported by Aaron W. LaFramboise.
 652
 653 2004-07-01  Jakub Jelinek  <jakub@redhat.com>
 654
 655         * expr.c (expand_assignment): Optimize bitfld += cst for 1 bit
 656         bitfields as well.  STRIP_NOPS from src operand and PLUS_EXPR's
 657         first operand.  Don't optimize if the bitfield is volatile.
 658
 659 2004-07-01  Paolo Bonzini  <bonzini@gnu.org>
 660
 661         * c-pretty-print.c (pp_c_postfix_expression): Handle
 662         floating-point comparison operators.
 663         (pp_c_expression): Pass floating-point comparison
 664         operators to pp_c_postfix_expression.
 665
 666 2004-07-01  Roger Sayle  <roger@eyesopen.com>
 667
 668         * simplify-rtx.c (simplify_binary_operation) <PLUS, MINUS>: Use
 669         rtx_cost instead of "had_mult" to determine whether the transformed
 670         expression is cheaper than the original.
 671
 672 2004-07-01  Jerry Quinn  <jlquinn@optonline.net>
 673
 674         * alias.c (get_alias_set, canon_rtx, get_addr,
 675         nonoverlapping_memrefs_p, nonlocal_referenced_p_1, memory_modified_1):
 676         Use MEM_P.
 677         * builtins.c (expand_builtin_prefetch, expand_builtin_profile_func,
 678         expand_builtin): Likewise.
 679         * calls.c (expand_call, emit_library_call_value_1, store_one_arg):
 680         Likewise.
 681         * combine.c (can_combine_p, combinable_i3pat, try_combine,
 682         find_split_point, combine_simplify_rtx, simplify_set, make_extraction,
 683         rtx_equal_for_field_assignment_p, gen_lowpart_for_combine,
 684         record_dead_and_set_regs_1, get_last_value_validate,
 685         mark_used_regs_combine, move_deaths, unmentioned_reg_p_1): Likewise.
 686         * cse.c (check_dependence, canon_hash, equiv_constant,
 687         gen_lowpart_if_possible, cse_insn, invalidate_from_clobbers,
 688         cse_around_loop, cse_check_loop_start, cse_set_around_loop,
 689         count_reg_usage): Likewise.
 690         * cselib.c (rtx_equal_for_cselib_p, add_mem_for_addr, cselib_lookup,
 691         cselib_invalidate_mem, cselib_invalidate_rtx, cselib_record_set,
 692         cselib_record_sets): Likewise.
 693         * dbxout.c (PARM_PASSED_IN_MEMORY, dbxout_symbol,
 694         dbxout_symbol_location, dbxout_parms, dbxout_reg_parms): Likewise.
 695         * ddg.c (mark_mem_use, mark_mem_store, rtx_mem_access_p): Likewise.
 696         * df.c (df_uses_record): Likewise.
 697         * dojump (do_jump): Likewise.
 698         * dwarf2out.c (stack_adjust_offset, mem_loc_descriptor,
 699         loc_descriptor_from_tree, rtl_for_decl_location, add_bound_info,
 700         decl_start_label): Likewise.
 701         * emit-rtl.c (gen_complex_constant_part, gen_highpart,
 702         operand_subword, change_address_1, make_safe_from): Likewise.
 703         * explow.c (break_out_memory_refs, copy_all_regs, validize_mem,
 704         stabilize, force_not_mem): Likewise.
 705         * expmed.c (store_bit_field, store_split_bit_field, extract_bit_field,
 706         expand_mult_const, expand_divmod, emit_store_flag): Likewise.
 707         * expr.c (convert_move, convert_modes, emit_block_move,
 708         emit_group_load, emit_group_store, clear_storage, emit_move_insn,
 709         emit_move_insn_1, expand_assignment, store_expr,
 710         store_constructor_field, store_constructor, store_field,
 711         force_operand, safe_from_p, expand_expr_real_1, expand_increment):
 712         Likewise.
 713         * final.c (cleanup_subreg_operands, alter_subreg,
 714         get_mem_expr_from_op): Likewise.
 715         * flow.c (notice_stack_pointer_modification_1,
 716         init_propagate_block_info, insn_dead_p, mark_set_1, mark_used_regs):
 717         Likewise.
 718         * function.c (mark_temp_addr_taken, preserve_temp_slots,
 719         preserve_rtl_expr_result, put_var_into_stack, fixup_var_refs_1,
 720         optimize_bit_field, flush_addressof, purge_addressof_1,
 721         instantiate_decl, instantiate_virtual_regs_1, assign_parms,
 722         setjmp_protect, setjmp_protect_args, fix_lexical_addr,
 723         keep_stack_depressed): Likewise.
 724         * ifcvt.c (noce_try_cmove_arith, noce_try_abs, noce_operand_ok,
 725         noce_process_if_block, find_memory): Likewise.
 726         * integrate.c (subst_constants, allocate_initial_values): Likewise.
 727         * local-alloc.c (validate_equiv_mem_from_store, memref_referenced_p,
 728         update_equiv_regs): Likewise.
 729         * loop.c (scan_loop, prescan_loop, note_addr_stored, check_store,
 730         maybe_eliminate_biv_1, find_mem_in_note_1): Likewise.
 731         * optabs.c (expand_abs, emit_unop_insn): Likewise.
 732         * passes.c (rest_of_handle_final): Likewise.
 733         * postreload.c (reload_cse_simplify_set, reload_cse_simplify_operands,
 734         move2add_note_store): Likewise.
 735         * ra-build.c (detect_remat_webs): Likewise.
 736         * ra-debug.c (dump_static_insn_cost): Likewise.
 737         * ra-rewrite.c (slots_overlap_p, insert_stores): Likewise.
 738         * recog.c (validate_change, apply_change_group, cancel_changes,
 739         validate_replace_rtx_1, general_operand, register_operand,
 740         nonmemory_operand, push_operand, pop_operand, memory_operand,
 741         indirect_operand, asm_operand_ok, offsettable_memref_p,
 742         offsettable_nonstrict_memref_p, constrain_operands,
 743         store_data_bypass_p): Likewise.
 744         * reg-stack.c (subst_stack_regs_pat): Likewise.
 745         * regclass.c (record_operand_costs, scan_one_insn, record_reg_classes,
 746         copy_cost, reg_scan_mark_refs): Likewise.
 747         * regmove.c (optimize_reg_copy_3, stack_memref_p,
 748         combine_stack_adjustments_for_block): Likewise.
 749         * regrename.c (copyprop_hardreg_forward_1): Likewise.
 750         * reload.c (can_reload_into, push_reload, decompose, immune_p,
 751         find_reloads, find_reloads_address, find_reloads_address_1,
 752         reg_overlap_mentioned_for_reload_p, refers_to_mem_for_reload_p,
 753         find_equiv_reg): Likewise.
 754         * reload1.c (reload, eliminate_regs, eliminate_regs_in_insn,
 755         reload_as_needed, choose_reload_regs, emit_input_reload_insns,
 756         do_input_reload, emit_reload_insns, gen_reload, delete_output_reload,
 757         delete_address_reloads): Likewise.
 758         * resource.c (mark_referenced_resources): Likewise.
 759         * rtlanal.c (get_jump_table_offset, count_occurrences,
 760         reg_referenced_p, reg_set_p, set_of_1, set_noop_p,
 761         reg_overlap_mentioned_p, note_uses, replace_regs, nonzero_bits1,
 762         num_sign_bit_copies1): Likewise.
 763         * rtlhooks.c (gen_lowpart_general): Likewise.
 764         * sched-deps.c (sched_analyze_1, sched_analyze_2): Likewise.
 765         * sdbout.c (PARM_PASSED_IN_MEMORY, sdbout_symbol,
 766         sdbout_toplevel_data, sdbout_parms, sdbout_reg_parms,
 767         sdbout_global_decl): Likewise.
 768         * simplify-rtx.c (simplify_subreg): Likewise.
 769         * stmt.c (expand_asm_operands, expand_expr_stmt_value, expand_decl,
 770         expand_anon_union_decl, expand_end_case_type): Likewise.
 771         * unroll.c (calculate_giv_inc): Likewise.
 772         * var-tracking.c (stack_adjust_offset_pre_post,
 773         bb_stack_adjust_offset, track_expr_p, count_uses, add_uses,
 774         add_stores, compute_bb_dataflow, vt_get_decl_and_offset,
 775         vt_add_function_parameters): Likewise.
 776         * varasm.c (make_var_volatile, notice_global_symbol,
 777         assemble_external, decode_addr_const, mark_weak,
 778         default_encode_section_info): Likewise.
 779
 780 2004-07-01  Steven Bosscher  <stevenb@suse.de>
 781
 782         * stmt.c (check_seenlabel): Remove.
 783         (pushcase, pushcase_range, expand_end_case_type): Don't call it.
 784
 785 2004-07-01  Richard Henderson  <rth@redhat.com>
 786
 787         * function.h (struct function): Remove x_function_call_count.
 788         (function_call_count): Remove.
 789         * calls.c (expand_call): Don't set it.
 790         * integrate.c (copy_rtx_and_substitute): Likewise.
 791
 792         * function.h (struct function): Remove x_cleanup_label.
 793         (cleanup_label): Remove.
 794         * stmt.c (expand_value_return): Don't use it.
 795         * function.c (free_after_compilation): Don't set it.
 796         (expand_function_start): Likewise.  Remove parms_have_cleanups arg.
 797         * cfgexpand.c (tree_expand_cfg): Update call.
 798         * tree.h (expand_function_start): Update decl.
 799
 800 2004-07-01  Joseph S. Myers  <jsm@polyomino.org.uk>
 801
 802         PR c/1027
 803         * c-lang.c (c_initialize_diagnostics): Move from here ...
 804         * c-objc-common.c: ... to here.  Include "c-pretty-print.h".
 805         (c_tree_printer): Use pretty-printer to format %T.
 806         * c-pretty-print.c (pp_c_specifier_qualifier_list): Include space
 807         before '*' if not C++.
 808         (pp_c_direct_abstract_declarator): Don't try to print array upper
 809         bound for flexible array members.
 810         * c-tree.h: Include "diagnostic.h".
 811         (c_initialize_diagnostics): Declare.
 812         * objc/objc-lang.c (LANG_HOOKS_INITIALIZE_DIAGNOSTICS): Define.
 813         * c-format.c (format_type_warning): New function.  Improve
 814         diagnostics for incorrect format argument types.
 815         (check_format_types): Use it.  Add two parameters.  Use the
 816         TYPE_MAIN_VARIANT of wanted_type.
 817         (check_format_info_main): Pass new parameters to
 818         check_format_types.
 819         (struct format_wanted_type): Update comment.
 820
 821 2004-07-01  Nick Clifton  <nickc@redhat.com>
 822
 823         * target.h (struct gcc_target): Add new field to struct cxx:
 824         import_export_class.
 825         * target-def.h (TARGET_CXX): Initialise the new field.
 826         (TARGET_CXX_IMPORT_EXPORT_CLASS): Provide a default value for
 827         the new field.
 828         * doc/tm.texi: Document the new target hook.
 829
 830 2004-07-01  Paolo Bonzini  <bonzini@gnu.org>
 831
 832         * builtins.c (fold_builtin_classify): Fix typo.
 833
 834 2004-07-01  Richard Henderson  <rth@redhat.com>
 835
 836         * function.c (identify_blocks, identify_blocks_1): Remove.
 837         * function.h (identify_blocks): Remove.
 838         * rtl.h (NOTE_INSN_BLOCK_BEG): Update comment.
 839
 840 2004-07-01  Paolo Bonzini  <bonzini@gnu.org>
 841
 842         * builtins.c (fold_builtin_classify): New.
 843         (fold_builtin_unordered_cmp): Fix commentary.
 844         (fold_builtin): Use it.
 845         * builtins.def: Define builtins for isnan,
 846         isnanf, isnanl, finite, finitef, finitel,
 847         isinf, isinff, isinfl.
 848
 849 2004-07-01  Richard Henderson  <rth@redhat.com>
 850
 851         * function.h (struct function): Remove dont_emit_block_notes.
 852         * gimple-low.c (lower_function_body): Don't set it.
 853         * cfgexpand.c (expand_block): Don't check it.
 854         * cfglayout.c (insn_locators_initialize): Likewise.
 855         * expr.c (expand_expr_real, expand_expr_real_1): Likewise.
 856         * passes.c (rest_of_compilation): Likewise.
 857         * stmt.c (expand_start_bindings_and_block): Likewise.
 858         (expand_end_bindings): Likewise.
 859
 860 2004-07-01  Richard Henderson  <rth@redhat.com>
 861
 862         * cgraph.h (cgraph_build_static_cdtor): Declare.
 863         * cgraphunit.c (cgraph_build_static_cdtor): New.
 864         * c-objc-common.c (build_cdtor): Use it.
 865         * coverage.c (create_coverage): Likewise.
 866         * libfuncs.h (LTI_gcov_init, gcov_init_libfunc): Remove.
 867         * optabs.c (init_optabs): Don't set gcov_init_libfunc.
 868
 869 See ChangeLog.11 for earlier changes.