Merge from glibc:
* regex.c: Declare wcs functions only if compiling with
MBS_SUPPORT.
Don't use #elif for traditional C.
* regex.c: Revamp memory allocation for WCHAR functions to
not use too much stack.
From-SVN: r44471
* combine.c (recog_for_combine): Use the fake recog
only if instruction does not match.
* rtl.h (NOOP_MOVE_INSN_CODE): New.
* rtlanal.c (noop_move_p): Always return 1 for NOOP_MOVE_INSN_CODE.
* combine.c (try_combine): Discover noop jump as direct jump.
From-SVN: r44464
2001-07-29 Daniel Berlin <dan@cgsoftware.com>
* df.c (df_rd_global_compute): Add successors to worklist, not
current item.
(df_ru_global_compute): Ditto for preds.
From-SVN: r44461
2001-07-27 Daniel Berlin <dan@cgsoftware.com>
* regclass.c (reg_scan_mark_refs): Increment REG_N_REFS when we
increment REG_N_SETS.
2001-07-26 Daniel Berlin <dan@cgsoftware.com>
* sbitmap.h: New prototype for sbitmap_a_xor_b.
* sbitmap.c (sbitmap_a_xor_b): New function.
#ifdef the basic block stuff on the define IN_GCC.
From-SVN: r44460
* cppexp.c (parse_defined): Always record the macro name.
(lex): Don't worry about identifiers, or special-case
CPP_NOT here.
(_cpp_parse_expr): Figure out at the end of the routine
whether we saw a valid !defined() expression.
* cppfiles.c (stack_include_file): Update for mi_valid.
(_cpp_pop_file_buffer): Similarly.
* cpplex.c (_cpp_lex_token): Similarly.
* cpphash.h (enum mi_state, enum mi_ind, mi_state,
mi_if_not_defined, mi_lexed): Remove.
(mi_valid): New.
* cpplib.c (do_if): Simplify.
(do_endif, push_conditional, _cpp_handle_directive): Update
for renaming of mi_state to mi_valid.
* cpp.texi: Add index entries for digraphs, and add comment
that C++ refers to them as alternative tokens.
From-SVN: r44459
* dwarf2out.c (dw_val_class_offset): New.
(struct dw_ranges_struct, dw_ranges_ref): New.
(ranges_table, ranges_table_allocated): New.
(ranges_table_in_use, RANGES_TABLE_INCREMENT): New.
(add_AT_offset, add_ranges, output_ranges): New.
(print_die, output_die): Handle dw_val_class_offset.
(attr_checksum, size_of_die, value_format): Likewise.
(gen_lexical_block_die): Handle non-contiguous blocks.
(gen_block_die): Likewise.
(dwarf2out_finish): Add a DW_AT_entry_pc to the compilation unit
if needed. Dump the ranges table.
* final.c (final_start_function): Remove unnecessary notes and
rebuild the block tree before numbering the blocks.
* function.c (reorder_blocks_0): Walk the existing block tree
to unmark all blocks.
(reorder_blocks_1): Create block fragments when duplicate block
notes are seen.
(reorder_fix_fragments): New.
(reorder_blocks): Call it.
* tree.h (BLOCK_FRAGMENT_ORIGIN, BLOCK_FRAGMENT_CHAIN): New.
From-SVN: r44444
* flow.c (add_to_mem_set_list): New function.
(init_propagate_block_info): Use it.
(mark_set_1): Likewise.
(insn_dead_p): Canonicalize memory address for dead store
comparison. Allow wider mode stores to kill narrower mode stores.
(invalidate_mems_from_autoinc): Use invalidate_mems_from_set.
(invalidate_mems_from_set): Don't handle MEMs.
From-SVN: r44441
* basic-block.h (EDGE_FREQUENCY): New macro.
* bb-reorder (fixup_reorder_chain): Set counts and frequencies
for new BB/edges.
* flow.c (find_sub_basic_blocks): Likewise.
(try_crossjump_to_edge): Likewise; use EDGE_FREQUENCY
(redirect_edge_and_branch): Use EDGE_FREQUENCY.
* predict.c (DEF_PREDICTOR): New argument FLAGS.
(HITRATE): New macro.
(PRED_FLAG_FIRST_MATCH): New constant.
(predictor_info): New field flgags.
(combine_predictions_for_insn): Use DS theory to combine
probabilities; set the edge probabilities when finished.
(estimate_probability): Avoid duplicated matches
of LOOP_BRANCH heuristics for nested loops; update comment.
* predict.def: Add flags for each prediction, set probabilities
according to B&L paper.
* predict.h (DEF_PREDICTOR): New argument FLAGS.
* profile.c (compute_branch_probabilities): Cleanup way the edge
probabilities are computed and REG_BR_PROB notes are dropped; if
values does not match, emit error.
(init_branch_prob): Do error instead of warning when profile driven
feedback is missing or corrupt.
From-SVN: r44439
* ifcvt.c (noce_get_alt_condition): If the condition is a compare
against a constant, try to adjust the compare to have the desired
constant in it so that min/max optimizations happen more often.
From-SVN: r44435
cp:
* class.c (mark_primary_virtual_base): Don't adjust base
offsets here.
(dfs_unshared_virtual_bases): Adjust them here.
(mark_primary_bases): Explain why we adjust at the end.
testsuite:
* g++.dg/abi/vbase8-21.C: New test.
From-SVN: r44425
cp:
* class.c (finish_struct_1): When copying the primary base's
VFIELD, make sure we find it is at offset zero.
testsuite:
* g++.dg/abi/vbase8-10.C: New test.
From-SVN: r44421
* simplify-rtx.c (avoid_constant_pool_reference): Export.
* rtl.h (avoid_constant_pool_reference): Declare it.
* dwarf2out.c (add_location_or_const_value_attribute): Use it.
(add_const_value_attribute): Use add_AT_unsigned for unsigned values.
From-SVN: r44411
* rtl.h (cleanup_barriers): Declare.
* jump.c (cleanup_barriers): New function.
* toplev.c (rest_of_compilation): Call cleanup_barriers
before loop optimizer and after bb_reorder.
* flow.c (back_edge_of_syntactic_loop_p): New.
(split_edge): Use it.
From-SVN: r44409
* basic-block.h (PROP_ALLOW_CFG_CHANGES): Define.
(PROP_FINAL): Include PROP_ALLOW_CFG_CHANGES.
(propagate_block): Update prototype.
* flow.c (update_life_info): Simplify the CFG and
recalculate the global regs which are alive when
removing dead code during a global update.
(propagate_block): Return non-zero if an INSN is
deleted.
From-SVN: r44403
2001-07-26 Andrew MacLeod <amacleod@redhat.com>
* params.def (PARAM_MAX_PENDING_LIST_LENGTH): Add parameter to
limit length of dependancy flush list.
* params.h (MAX_PENDING_LIST_LENGTH): Define.
* sched-int.h (struct deps): Add pending_flush_length field.
* sched-deps.c (flush_pending_lists): Last_pending_memory_flush now
has 1 element in it.
(sched_analyze_1): Use MAX_PENDING_LIST_LENGTH.
(sched_analyze): After a jump, if the pending memory flush list is too
large, flush the pending lists.
(init_deps): Initialize pending_flush_length to 0.
* doc/invoke.texi (max_pending_list_length): Document parameter.
From-SVN: r44398
Jan Hubicka
Andrew Haley
Andreas Jaeger
GCC Administrator
Bryce McKinlay
Neil Booth
Daniel Berlin
Jan Hubicka
Neil Booth
Mark Wielaard
Richard Henderson
Golubev I. N.
Kazu Hirata
DJ Delorie
Andrew Haley
Nathan Sidwell
Rainer Orth
Gerald Pfeifer
John Wehle
Stan Cox
Denis Chertykov
Catherine Moore
Andrew MacLeod