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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@60174 138bc75d-0d04-0410-961f-82ee72b054a4
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* cfg.c: Likewise.
* cfgcleanup.c: Likewise.
* cfglayout.c: Likewise.
* cfgrtl.c: Likewise.
* c-typeck.c: Likewise.
* dominance.c: Likewise.
* dwarf2asm.c: Likewise.
* dwarfout.c: Likewise.
* expmed.c: Likewise.
* expr.c: Likewise.
* final.c: Likewise.
* flow.c: Likewise.
* function.c: Likewise.
* gcc.c: Likewise.
* genautomata.c: Likewise.
* integrate.c: Likewise.
* loop.c: Likewise.
* loop.h: Likewise.
* output.h: Likewise.
* profile.c: Likewise.
* ra.h: Likewise.
* reload1.c: Likewise.
* reload.c: Likewise.
* sched-rgn.c: Likewise.
* stmt.c: Likewise.
* tree.h: Likewise.
* vmsdbgout.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@60085 138bc75d-0d04-0410-961f-82ee72b054a4
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PR c/7344
* cfgbuild.c (make_edges): Create edge cache when we do have
large jumptable.
(do_tablejump): Note size of maximal jumptable.
* function.c (prepare_function_start): Zero out size.
* function.h (function): Add max_jumptable_ents.
* cfgcleanup.c (insn_match_p): Verify sibcall flag for calls to.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@58063 138bc75d-0d04-0410-961f-82ee72b054a4
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* c-common.def: Likewise.
* cfgcleanup.c: Likewise.
* combine.c: Likewise.
* gengtype.c: Likewise.
* params.def: Likewise.
* predict.def: Likewise.
* rtl.def: Likewise.
* stab.def: Likewise.
* stor-layout.c: Likewise.
* tree.def: Likewise.
* config/darwin.c: Likewise.
* config/darwin.h: Likewise.
* config/dbxcoff.h: Likewise.
* config/elfos.h: Likewise.
* config/fp-bit.c: Likewise.
* config/freebsd-spec.h: Likewise.
* config/interix.h: Likewise.
* config/libgloss.h: Likewise.
* config/linux-aout.h: Likewise.
* config/linux.h: Likewise.
* config/lynx-ng.h: Likewise.
* config/lynx.h: Likewise.
* config/netbsd-aout.h: Likewise.
* config/netbsd.h: Likewise.
* config/netware.h: Likewise.
* config/psos.h: Likewise.
* config/ptx4.h: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@57624 138bc75d-0d04-0410-961f-82ee72b054a4
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loop optimization; this broke doloop detection.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@57260 138bc75d-0d04-0410-961f-82ee72b054a4
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information.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@56916 138bc75d-0d04-0410-961f-82ee72b054a4
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2002-08-05 Geoffrey Keating <geoffk@redhat.com>
* attribs.c: Don't include obstack.h.
* builtins.c: Likewise.
* cfganal.c: Likewise.
* cfgbuild.c: Likewise.
* cfgcleanup.c: Likewise.
* emit-rtl.c: Likewise.
* loop.c: Likewise.
* stmt.c: Likewise.
Index: cp/ChangeLog
2002-08-05 Geoffrey Keating <geoffk@redhat.com>
* class.c: Don't include obstack.h.
(popclass):
* decl2.c: Delete bogus comment.
* error.c: Don't include obstack.h.
* except.c: Likewise.
(dump_type): Correct comment.
* method.c: Don't include obstack.h.
* tree.c: Likewise.
Index: java/ChangeLog
2002-08-05 Geoffrey Keating <geoffk@redhat.com>
* mangle_name.c: Don't include obstack.h twice.
* xref.c: Don't include obstack.h.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@56055 138bc75d-0d04-0410-961f-82ee72b054a4
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merge bb with itself.
* gcc.c-torture/compile/20020605-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@54456 138bc75d-0d04-0410-961f-82ee72b054a4
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(expunge_block_nocompact): Declaration removed.
(compact_blocks): Declare.
* cfg.c (last_basic_block): New variable.
(expunge_block_nocompact): Removed.
(expunge_block): Do not compact basic blocks.
(compact_blocks): New.
* cfganal.c (flow_call_edges_add): Use the fact that bb indices no
longer change.
* cfgbuild.c (find_basic_blocks_1, find_basic_blocks): Set
last_basic_block.
* cfgcleanup.c (merge_blocks_move_predecessor_nojumps): Do not change
real positions of blocks.
(delete_unreachable_blocks): Simplified -- quadratic behavior now
cannot occur.
(cleanup_cfg): Compact blocks.
* cfgrtl.c (create_basic_block): Insert basic blocks to the end of
basic_block_info varray.
(flow_delete_block): Comment update.
(back_edge_of_syntactic_loop_p): Modify position check code.
(verify_flow_info): Update checking.
* flow.c (calculate_global_regs_live): Use FOR_EACH_BB.
* ifcvt.c (SET_ORIG_INDEX, ORIG_INDEX): Removed.
(find_if_case_1, find_if_case_2, if_convert): Use the fact that bb
indices no longer change.
* lcm.c (optimize_mode_switching): Replace n_basic_blocks with
last_basic_block.
* predict.c (estimate_bb_frequencies): Remove unneccessary code.
* profile.c (branch_prob): Compact blocks.
* sched-rgn.c (find_rgns): Replace n_basic_blocks with
last_basic_block.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53957 138bc75d-0d04-0410-961f-82ee72b054a4
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Use FOR_EACH_BB macros to iterate over basic block chain.
* cfg.c (clear_edges, clear_bb_flags, dump_flow_info,
alloc_aux_for_blocks, clear_aux_for_blocks, alloc_aux_for_edges):
Likewise.
* cfganal.c (set_edge_can_fallthru_flag, flow_call_edges_add,
find_unreachable_blocks, create_edge_list, verify_edge_list,
remove_fake_edges, add_noreturn_fake_exit_edges,
flow_preorder_transversal_compute, flow_dfs_compute_reverse_execute):
Likewise.
* cfgbuild.c (make_edges, find_basic_blocks, find_many_sub_basic_blocks,
find_sub_basic_blocks): Likewise.
* cfgcleanup.c (try_optimize_cfg, delete_unreachable_blocks):
Likewise.
* cfglayout.c (record_effective_endpoints, cleanup_unconditional_jumps):
Likewise.
* cfgloop.c (flow_loops_cfg_dump, flow_loops_find):
Likewise.
* cfgrtl.c (compute_bb_for_insn, tidy_fallthru_edges,
commit_edge_insertions, commit_edge_insertions_watch_calls,
print_rtl_with_bb, verify_flow_info, purge_all_dead_edges): Likewise.
* combine.c (combine_instructions, reg_dead_at_p): Likewise.
* conflict.c (conflict_graph_compute): Likewise.
* df.c (df_bitmaps_alloc, df_bitmaps_free, df_alloc, df_analyse_1,
df_modified_p, df_refs_unlink, df_dump): Likewise.
* dominance.c (calc_dfs_tree, calculate_dominance_info): Likewise.
* final.c (compute_alignments): Likewise.
* flow.c (update_life_info, update_life_info_in_dirty_blocks,
delete_noop_moves, calculate_global_regs_live, allocate_bb_life_data,
count_or_remove_death_notes): Likewise.
* gcse.c (oprs_unchanged_p, record_last_reg_set_info,
compute_hash_table, compute_kill_rd, compute_rd, compute_ae_kill,
classic_gcse, compute_transp, cprop, compute_pre_data,
compute_transpout, invalidate_nonnull_info,
delete_null_pointer_checks_1, delete_null_pointer_checks,
compute_code_hoist_vbeinout, hoist_code, compute_ld_motion_mems,
compute_store_table, build_store_vectors, store_motion): Likewise.
* global.c (global_conflicts, mark_elimination): Likewise.
* graph.c (print_rtl_graph_with_bb): Likewise.
* haifa-sched.c (sched_init): Likewise.
* ifcvt.c (if_convert): Likewise.
* lcm.c (compute_antinout_edge, compute_laterin, compute_insert_delete,
compute_available, compute_nearerout, compute_rev_insert_delete,
optimize_mode_switching): Likewise.
* local-alloc.c (local_alloc, update_equiv_regs): Likewise.
* predict.c (estimate_probability, note_prediction_to_br_prob,
propagate_freq, counts_to_freqs, expensive_function_p,
estimate_bb_frequencies): Likewise.
* profile.c (instrument_edges, get_exec_counts,
compute_branch_probabilities, compute_checksum, branch_prob,
find_spanning_tree): Likewise.
* recog.c (split_all_insns, peephole2_optimize): Likewise.
* reg-stack.c (reg_to_stack, convert_regs_entry, convert_regs):
Likewise.
* regclass.c (scan_one_insn, regclass): Likewise.
* regmove.c (mark_flags_life_zones, regmove_optimize,
record_stack_memrefs): Likewise.
* regrename.c (regrename_optimize, copyprop_hardreg_forward): Likewise.
* reload1.c (reload, reload_combine, fixup_abnormal_edges): Likewise.
* resource.c (find_basic_block): Likewise.
* sched-ebb.c (schedule_ebbs): Likewise.
* sched-rgn.c (is_cfg_nonregular, build_control_flow,
find_single_block_region, find_rgns, schedule_insns)
* sibcall.c (optimize_sibling_and_tail_recursive_call)
* ssa-ccp.c (optimize_unexecutable_edges,
ssa_ccp_df_delete_unreachable_insns): Likewise.
* ssa-dce.c (ssa_eliminate_dead_code): Likewise.
* ssa.c (find_evaluations, compute_dominance_frontiers_1,
rename_block, convert_to_ssa, compute_conservative_reg_partition,
compute_coalesced_reg_partition, rename_equivalent_regs,
convert_from_ssa): Likewise.
* config/ia64/ia64.c (emit_predicate_relation_info, process_epilogue,
process_for_unwind_directive): Likewise.
* df.c (FOR_ALL_BBS): Removed.
* gcse.c (struct null_pointer_info): Type of current_block field
changed.
(struct reg_avail_info): Type of last_bb field changed.
* config/ia64/ia64.c (block_num): Removed.
(need_copy_state): Type changed.
(last_block): New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53804 138bc75d-0d04-0410-961f-82ee72b054a4
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* basic-block.h (CLEANUP_NO_INSN_DEL): Define it.
* cfgcleanup.c (cleanup_cfg): If it is set do not
attempt to delete trivially dead insns.
* except.c (finish_eh_generation): Pass it to cleanup_cfg.
* toplev.c (rest_of_compilation): Document non-trivial aspect
the RTL before optimize_save_area_alloca is run.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53789 138bc75d-0d04-0410-961f-82ee72b054a4
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* cfg.c: Likewise.
* cfgcleanup.c: Likewise.
* cfglayout.c: Likewise.
* cfgloop.c: Likewise.
* cfgrtl.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53717 138bc75d-0d04-0410-961f-82ee72b054a4
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* cfganal.c (can_fallthru, flow_call_edges_add,
flow_preorder_transversal_compute): Modified.
* cfgbuild.c (make_edges, find_basic_blocks, find_many_sub_basic_blocks,
find_sub_basic_blocks): Modified.
* cfgcleanup.c (try_simplify_condjump, try_optimize_cfg): Modified.
* cfglayout.c (skip_insns_after_block, fixup_reorder_chain,
fixup_fallthru_exit_predecessor, cfg_layout_redirect_edge): Modified.
* cfgrtl.c (tidy_fallthru_edges, verify_flow_info): Modified.
* combine.c (this_basic_block): Type changed to basic_block.
(combine_instructions, set_nonzero_bits_and_sign_copies, try_combine,
nonzero_bits, num_sign_bit_copies, get_last_value_validate,
get_last_value, distribute_notes, distribute_links): Modified.
* final.c (compute_alignments): Modified.
* flow.c (regno_uninitialized, regno_clobbered_at_setjmp): Modified.
* function.c (thread_prologue_and_epilogue_insns): Modified.
* gcse.c (compute_code_hoist_vbeinout): Modified.
* global.c (build_insn_chain): Modified.
* ifcvt.c (find_if_block, find_cond_trap): Modified.
* predict.c (last_basic_block_p, note_prediction_to_br_prob): Modified.
* regmove.c (regmove_optimize): Modified.
* resource.c (find_basic_block): Modified.
* sched-ebb.c (schedule_ebbs): Modified.
* ssa-dce.c (find_control_dependence, find_pdom): Modified.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53695 138bc75d-0d04-0410-961f-82ee72b054a4
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fields.
(FOR_BB_BETWEEN, FOR_ALL_BB, FOR_ALL_BB_REVERSE): New macros for
traversing basic block chain.
(create_basic_block_structure, create_basic_block): Declaration changed.
(link_block, unlink_block): Declare.
* cfg.c (entry_exit_blocks): Initialize new fields.
(link_block, unlink_block): New.
(expunge_block_nocompact): Unlink basic block.
(dump_flow_info): Print prev_bb/next_bb fields.
* cfgbuild.c (find_basic_blocks_1, find_basic_blocks): Modified.
* cfgcleanup.c (merge_blocks_move_predecessor_nojumps): Modified.
* cfglayout.c (fixup_reorder_chain, cfg_layout_duplicate_bb): Modified.
* cfgrtl.c (create_basic_block_structure, create_basic_block,
split_block, force_nonfallthru_and_redirect, split_edge): Modified.
(verify_flow_info): Check that list agrees with numbering.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53642 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53537 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53522 138bc75d-0d04-0410-961f-82ee72b054a4
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* i386-protos.h (x86_output_mi_thunk): Declare.
* unix.h (ASM_OUTPUT_MI_THUNK): Move offline to ...
* i386.c (x86_output_mi_thunk): ... here; handle 64bits.
* dwarf2out.c (output_call_frame_info): Do not skip unwind info
when flag_asynchronous_unwind_tables is set.
* flags.h (flag_reorder_functions): Declare.
* function.c (prepare_function_start): Initialize frequnecy.
* params.def (HOT_BB_COUNT_FRACTION, HOT_BB_FREQUENCY_FRACTION): New paramters.
* Makefile.in (predict.o): Add dependency on target.h and params.h
* defaults.h (HOT_TEXT_SECTION_NAME,
UNLIKELY_EXECUTED_TEXT_SECTION_NAME): New macros.
* predict.c (choose_function_section): New function.
(estimate_bb_frequencies): Use it.
* toplev.c (flag_reorder_functions): New global variable.
(lang_independent_options): New.
(parse_options_and_default_flags): Set.
* varasm.c (assemble_start_function): Bypass functdion alignment
for never executed functions.
* invoke.texi (-freorder-blocks, -freorder-functions): Document.
(param hot-bb-count-fraction, hot-bb-frequency-fraction): New.
* tm.texi (HOT_TEXT_SECTION_NAME, UNLIKELY_EXECUTED_TEXT_SECTION_NAME):
Document.
Thu Jan 3 21:52:09 CET 2002 Jan Hubicka <jh@suse.cz>
* predict.c: Inlude profile.h
(MIN_COUNT): Rename to MIN_COUNT_FRACTION
(maybe_hot_bb_p, probably_cold_bb_p, probably_never_executed_bb_p):
Use the information about maximal counter in the program.
Thu Dec 20 22:14:00 CET 2001 Jan Hubicka <jh@suse.cz>
* basic-block.h (maybe_hot_bb_p, probably_cold_bb_p,
probably_never_executed_bb_p): New functions.
* cfgcleanup.c (outgoing_edges_match): Use them.
* predict.c (MIN_COUNT, MIN_FREQUENCY): New macros.
(maybe_hot_bb_p, probably_cold_bb_p,
probably_never_executed_bb_p): New functions.
* function.h (function): Add new field function_frequency.
* predict.c (compute_function_frequency): New function.
(estimate_probability): Call it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53478 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53288 138bc75d-0d04-0410-961f-82ee72b054a4
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(function_footer): ... this one.
(unlink_insn_chain): New functions.
(label_for_bb): Only call block_label and emit debug message.
(record_effective_endpoints): Actually unlink the headers and footers.
(fixup_reorder_cahin): Re-insert the unlinked sequences.
(cfg_layout_duplicate_bb): Use duplicate_insn_chain.
* cfglayout.h (struct reorder_block_def): New fields footer/header;
remove eff_head/eff_end.
* rtl.h (set_first_insn): Declare.
* emit-rtl.c (set_first_insn): New function.
* cfglayout.c (fixup_reorder_chain): Dump duplicated
(cfg_layout_can_duplicate_bb_p, cfg_layout_rerirect_edge,
cfg_layout_duplicate_bb): New global function.
(duplicate_insn_chain): New static function.
* cfglayout.h (cfg_layout_can_duplicate_bb_p, cfg_layout_rerirect_edge,
cfg_layout_duplicate_bb): Declare.
(struct reorder_block_def): Add "original" field.
* emit-rtl.c (emit_copy_of_insn_after): New function.
* rtl.h (emit_copy_of_insn_after): Declare.
* cfglayout.c (fixup_fallthru_exit_predecessor): Kill.
(fixup_reorder_chain): properly handle edges to exit block.
Wed May 8 11:10:31 CEST 2002 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
Jan Hubicka <jh@suse.cz>
* basic-block.h (note_prediction_to_br_prob): declare.
* c-semantics.c: Inlucde predit.h
(expand_stmt): predict GOTO_STMT as not taken.
* cfgcleanup.c: (delete_unreachable_blocks): Make global.
(cleanup_cfg): Do not free tail_recursion_list.
* cfgrtl.c (can_delete_note_p): Delete NOTE_INSN_PREDICTION.
(flow_delete_block): Kill predictions past end of basic block.
* output.h (delete_unreachable_blocks): Declare.
* predict.c (predicted_by_p, process_note_predictions,
process_note_prediction, last_block_p): New function.
(estimate_probability): Bypass loop on PRED_CONTINUE;
do not handle noreturn heuristics; kill PRED_RETURN; add
PRED_EARLY_RETURN.
* predict.def (PRED_CONTINUE, PRED_EARLY_RETURN, PRED_GOTO,
PRED_CONST_RETURN, PRED_NEGATIVE_RETURN, PRED_NULL_RETURN): New.
* predict.h (IS_TAKEN): New constant.
* print-rtl.c (print_rtx): Pretty print NOTE_INSN_PREDICTION.
* rtl.c (NOTE_INSN_PREDICTION): New.
* rtl.h (NOTE_PREDICTION, NOTE_PREDICTION_ALG, NOTE_PREDICTION_FLAGS):
New macro.
(insn_note): add NOTE_INSN_PREDICTION.
* sibcall.c (optimize_sibling_and_tail_recursive_call): Do not build
CFG; free tail_recursion_label_list.
* stmt.c: Include predict.h;
(return_prediction): New.
(expand_value_return): Use it.
* toplev.c: Lower NOTE_INSN_PREDICTION before sibcall.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53285 138bc75d-0d04-0410-961f-82ee72b054a4
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jump is simplejump.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53129 138bc75d-0d04-0410-961f-82ee72b054a4
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info before expunging the block.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53014 138bc75d-0d04-0410-961f-82ee72b054a4
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(expunge_block_nocompact): Declare.
* cfg.c (expunge_block_nocompact): Split out from ...
(expunge_block): ... here.
* cfgrtl.c (can_delete_label_p): Don't use exception_handler_labels.
(flow_delete_block_noexpunge): Split out from ...
(flow_delete_block): ... here.
* cfgcleanup.c (delete_unreachable_blocks): Compact while
removing dead blocks.
* except.c (exception_handler_labels): Remove.
(exception_handler_label_map): New.
(struct eh_region): Add aka member.
(mark_ehl_map_entry, mark_ehl_map, free_region): New.
(ehl_hash, ehl_eq, ehl_free, add_ehl_entry): New.
(for_each_eh_label, for_each_eh_label_1): New.
(init_eh): Register exception_handler_label_map.
(free_eh_status): Use free_region.
(find_exception_handler_labels): Use the map, not the list.
(remove_exception_handler_label): Likewise.
(maybe_remove_eh_handler): Likewise.
(remove_eh_handler): Use the region aka bitmap.
* except.h (exception_handler_labels): Remove.
(for_each_eh_label): Declare.
* jump.c (rebuild_jump_labels): Don't check exception_handler_labels.
* loop.c (invalidate_loops_containing_label): New.
(find_and_verify_loops): Use it. Use for_each_eh_label.
* sched-rgn.c (is_cfg_nonregular): Use
current_function_has_exception_handlers.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@52100 138bc75d-0d04-0410-961f-82ee72b054a4
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optimizing.
* toplev.c (rest_of_compilation): Cann mark_constant_function
only when optimizing.
* flow.c (calculate_global_regs_live): Ensure that all AUX fields are NULL.
* cfgcleanup.c (bb_flags): Add BB_NONTHREADABLE_BLOCK.
(thread_jump): Set BB_NONTHREADABLE_BLOCK, check it.
(try_optimize_cfg): clear all AUX fields.
* i386.c (aligned_operand): Be prepared for SUBREGed registers.
(ix86_decompose_address): Use REG_P instead of GET_CODE (...) == REG.
(ix86_address_cost): Be prepared for SUBREGed registers.
(legitimate_address_p): Accept SUBREGed registers.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@51604 138bc75d-0d04-0410-961f-82ee72b054a4
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(may_trap_p): Do not mark FP operations if trapping
if !flag_trapping_math
* Makefile.in (rtlanal.o): Add dependency on flag.h
* ifcvt.c (noce_operand_ok): Avoid the lameness.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@51508 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@51170 138bc75d-0d04-0410-961f-82ee72b054a4
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frequencies match; avoid match on different loop depths.
(try_crossjump_to_bb): Kill tests that no longer brings time
savings.
* cfgrtl.c (force_nonfallthru_and_redirect): Fix loop_depth
updating code.
(split_edge): Likewise.
* flow.c (update_life_info_in_dirty_blocks): Fix uninitialized
variable.
* Makefile.in (cfgrtl): Add insn-config.h depenendency.
* cfgrtl.c: Include insn-config.h
(split_block) Dirtify block in presence of conditional execution
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@51168 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50876 138bc75d-0d04-0410-961f-82ee72b054a4
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consistently call delete_trivially_dead_insns after CSE and GCSE;
fix DFI_life dumping; do jump threading after liveness; do crossjumping
after liveness2; update comment in last crossjumping.
* cfgcleanup.c (try_crossjump_to_edge): Dirtify block.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50373 138bc75d-0d04-0410-961f-82ee72b054a4
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(thread_jump): Use it.
* toplev.c (rest_of_compilation): Run jump threading after
liveness.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50361 138bc75d-0d04-0410-961f-82ee72b054a4
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* rtl.h (delete_insn_and_edges, delete_insn_chain_and_edges): Declare
* basic-block.h (update_life_info, update_life_info_in_dirty_blocks,
delete_noop_moves): Return indeger.
* flow.c (ndead): New variable.
(propagate_block_delete_insn): Use delete_insn_and_edges; remove
BB argument; update callers.
(propagate_block_delete_libcall): Use delete_insn_chain_and_edges.
(life_analysis): Do not call purge_all_dead_edges.
(update_life_info): Return number of deleted insns; print statistics.
(update_life_info_in_dirty_blocks): likewise.
(delete_noop_moves): Use delete_insn_and_edges; print statistics;
return number of insns deleted.
* cse.c: Include timevar.h
(delete_trivially_dead_insns): Kill preserve_basic_blocks argument;
iterate until stabilizes; print statistics; return number of killed
insns.
* Makefile.in: (cse.o): Add timevar.h dependency
* rtl.h (delete_trivially_dead_insns): New.
* timever.def: Add TV_DELETE_TRIVIALLY_DEAD timer.
* toplev.c (rest_of_compilation): Update callers.
* cfgcleanup.c (try_optimize_cfg): Kill blocks.
(try_optimize_cfg): Do not update liveness.
(cleanup-cfg): Loop until try_optimize_cfg and dead code
removal stabilizes; use delete_trivially_dead_insns.
* cfgrtl.c (verify_flow_info): Sanity check outgoing edges.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50355 138bc75d-0d04-0410-961f-82ee72b054a4
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(BB_DIRTY, BB_NEW): New flags.
(clear_bb_flags): Declare.
(update_life_info_in_dirty_blocks): Declare.
* cfg.c (clear_bb_flags): New function.
* cfgrtl.c (create_basic_block_structure): Set flags to BB_NEW.
* emit-rtl.c (add_insn_after, add_insn_before, remove_insn,
reorder_insns, emit_insn_after): Mark block as dirty.
* flow.c (update_life_info): Fix clearing of PROP_LOG_LINKS.
(update_life_info_in_dirty_blocks): New function.
* recog.c (apply_change_group): Dirtify block.
* cse.c (cse_insn): Reorder emitting of jump insn to keep
cfg consistent.
* gcse.c (delete_null_pointer_checks): Likewise.
* toplev.c (dump_file_index): Move cse2 after bp,
add DFI_null
(dump_file_info): Similary.
(rest_of_compilation): Avoid most of CFG rebuilds;
do first if converision after null pointer checks, do cse2
after branch prediction; avoid full liveness rebuild after
initializing subregs.
* invoke.texi (-d options): Document -du, renumber.
* cfgcleanup.c (bb_flags): Remove BB_UPDATE_LIFE.
(notice_new_block): Do not set BB_UPDATE_LIFE.
(try_forward_edges, merge_blocks_move_predecessor_nojumps,
merge_blocks_move_successor_nojumps, merge_blocks,
try_crossjump_to_edge): Likewise.
(try_optimize_cfg): Likewise; use update_life_info_in_dirty_blocks.
* cfgrtl.c (merge_blocks_nomove): Copy b's flags to a.
* ifcvt.c (SET_UPDATE_LIFE, UPDATE_LIFE): Kill.
(merge_of_block): Do not use life_data_ok.
(find_if_case_1): Do not use SET_UPDATE_LIFE.
(if_convert): Use BB_DIRTY mechanizm to update life.
* lcm.c (optimize_mode_switching): Update
update_life_info_in_dirty_blocks
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50127 138bc75d-0d04-0410-961f-82ee72b054a4
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* hooks.h: New file.
* Makefile.in (HOOKS_H): New.
(TARGET_DEF_H): Added $(HOOKS_H).
(OBJS): Added hooks.o.
(cfgcleanup.o, bb-reorder.o): Added target.h.
(hooks.o): Added dependencies.
* target-def.h (TARGET_CANNOT_MODIFY_JUMPS_P): New, added to...
(TARGET_INITIALIZER): this.
* doc/tm.texi (TARGET_CANNOT_MODIFY_JUMPS_P): Document.
* target.h (struct gcc_target): Added cannot_modify_jumps_p.
* bb-reorder.c: Include target.h.
(reorder_basic_blocks): Skip if cannot modify jumps.
* cfgcleanup.c: Include target.h.
(try_optimize_cfg): Skip merge blocking if cannot modify jumps.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49627 138bc75d-0d04-0410-961f-82ee72b054a4
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threaded loop.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48837 138bc75d-0d04-0410-961f-82ee72b054a4
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* cfgcleanup.c (try_simplify_condjump): Call update_br_prob_note.
(try_forward_edges): Care negative frequencies and update note.
(outgoing_edges_match): Tweek conditional merging heuristics.
(try_crossjump_to_edge): use update_br_prob_note.
* cfglayout.c (fixup_reorder_chain): Likewise.
* cfrtl.c (update_br_prob_note): New.
* ifcvt.c (dead_or_predicable): Call update_br_prob_note.
* i386.c (ix86_decompose_address): Return -1 if address contains
shift.
(legitimate_address_p): Require ix86_decompose_address to return 1.
* gcse.c (hash_scan_set): Use CONSTANT_INSN_P.
(cprop_insn): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48750 138bc75d-0d04-0410-961f-82ee72b054a4
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update edge probabilities to match.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48734 138bc75d-0d04-0410-961f-82ee72b054a4
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* cfgcleanup.c (thread_jump): Fix 2 typos.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48592 138bc75d-0d04-0410-961f-82ee72b054a4
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jump threading.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48574 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48563 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48554 138bc75d-0d04-0410-961f-82ee72b054a4
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(mark_effect): Fix handling of hard register; fix handling of SET
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48553 138bc75d-0d04-0410-961f-82ee72b054a4
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to fail if target is EXIT_BLOCK_PTR, die otherwise.
(redirect_edge_and_branch): Likewise.
* cfgcleanup.c (try_forward_edge): Don't force jump redirecting
if target is EXIT_BLOCK_PTR.
* gcc.c-torture/compile/20011229-2.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48399 138bc75d-0d04-0410-961f-82ee72b054a4
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* rtlanal.c (in_expr_list_p): New function.
* cfgcleanup.c: Reformatting and minor code rearrangement.
* cfglayout.c, cfgloop.c, cfgrtl.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48304 138bc75d-0d04-0410-961f-82ee72b054a4
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if one of block does not contain jump.
(outgoing_edge_math): Revert last path; require edges to be noncomplex
nonfake to match single exit edge; require conditional jumps to not
have side effect.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48203 138bc75d-0d04-0410-961f-82ee72b054a4
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a single outgoing edge too.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48114 138bc75d-0d04-0410-961f-82ee72b054a4
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* basic-block.h (CLEANUP_THREADING): New constant.
* cfgcleanup.c: Include cselib.h
(thread_jump, mark_effect): New functions.
(try_forward_edges): Do jump threading when asked for.
* jump.c (mark_modified_reg, save_regs, num_same_regs, modified_regs,
modified_mem, thread_jumps, rtx_equal_for-thread_p): Kill.
* rtl.h (thread_jumps, rtx_equal_for_thread_p): Kill.
* toplev.c (rest_of_compilation): Do now call thread_jumps; use
CLEANUP_THREAD instead.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48108 138bc75d-0d04-0410-961f-82ee72b054a4
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ATTRIBUTE_UNUSED.
* cfgcleanup.c (insns_match_p): Likewise.
* regrename.c (mode_change_ok): Likewise.
* gcc.c (execute): Const-ify.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48033 138bc75d-0d04-0410-961f-82ee72b054a4
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by active_insn_p; count conditional jump as instruction.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@48022 138bc75d-0d04-0410-961f-82ee72b054a4
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* predict.def (PRED_OPCODE_POSITIVE, PRED_OPCODE_NONEQUAL,
PRED_FPOPCODE): New.
* i386.c (override_options): Recognize various CPU variants and set
SSE/MMX/3dNOW flags accordingly.
* i386.h (MASK_MMX_SET, MASK_SSE_SET, MASK_SSE2_SET, MASK_3DNOW_SET,
MASK_3DNOW_A_SET): New.
(MASK_ACCUMULATE_OUTGOING_ARGS_SET): New.
(MASK_NO_ACCUMULATE_OUTGOING_ARGS): Delete.
(MASK_*): Renumber.
(TARGET_FLAGS): Use new masks.
(CPP_CPU_SPECS): Recognize new CPU variants.
* invoke.texi (-mcpu): Update documentation.
* flags.h (flag_prefetch_loop_arrays): Declare.
* loop.h (LOOP_PREFETCH): Define new constant.
* loop.c (strength_reduce): Call emit_prefetch_instructions.
(MAX_PREFETCHES, PREFETCH_BLOCKS_BEFORE_LOOP_MAX,
PREFETCH_BLOCKS_BEFORE_LOOP_MIN, PREFETCH_BLOCKS_IN_LOOP_MIN): New
constants.
(check_store_data): New structure.
(check_store, emit_prefetch_instructions, rtx_equal_for_prefetch_p):
New functions.
* toplev.c: Include insn-flags.h.
(flag_prefetch_loop_arrays): New global variable.
(lang_independent_option): Add -fprefetch-loop-arrays.
(rest_of_compilation) Pass LOOP_PREFETCH when flag_prefetch_loop_arrays
is set.
* Makefile.in (toplev.c): Depend on insn-flags.h.
* invoke.texi (-fprefetch-loop-arrays): Document.
* predict.c (estimate_probability): Distribute the loop exit
probability according to number of exit edges.
* cfgcleanup.c (insns_match_p): Break out from ...;
(flow_find_cross_jump): ... here;
(outgoing_edges_match): Add parameter MODE; attempt to match everything
except for tablejumps.
(try_crossjump_to_edge): Accept complex edges.
(try_crossjump_bb): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@47969 138bc75d-0d04-0410-961f-82ee72b054a4
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(try_optimize_cfg): Use label_is_jump_target_p to check if label is
target of a JUMP_INSN from the preceding block.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@47825 138bc75d-0d04-0410-961f-82ee72b054a4
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conditional jump, request updating life into for the block
containing it. Fix a typo which prevented life info update.
Clear blocks bitmap before using it.
* gcc.c-torture/compile/20011114-3.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@47050 138bc75d-0d04-0410-961f-82ee72b054a4
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