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From-SVN: r53537
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From-SVN: r53522
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* i386.md (testsi to testqi spliters): New.
2002-01-14 Josef Zlomek <zlomek@matfyz.cz>
cfg.c (dump_edge_info): added dumping of EDGE_CAN_FALLTHRU.
Wed Jan 9 2002 Josef Zlomek <zlomj9am@artax.karlin.mff.cuni.cz>
* basic-block.h: New flag EDGE_CAN_FALLTHRU
* cfganal.c (set_edge_can_fallthru_flag): New function; marks the edges
that can be made fallthru.
Mon Nov 12 16:25:53 CET 2001 Jan Hubicka <jh@suse.cz>
* cfglayout.c (cleanup_unconditional_jumps): New static function.
(cfg_layout_initialize): Use it.
Co-Authored-By: Pavel Nejedly <bim@atrey.karlin.mff.cuni.cz>
From-SVN: r53383
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* cfglayout.c (function_tail_eff_head): Rename to ...
(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.
From-SVN: r53285
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* basic-block.h (update_br_prob_note): Declare.
* 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.
From-SVN: r48750
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* cfglayout.c (scope_def, scope_forest_info, forest,
relate_bbs_with_scopes, make_new_scope, build_scope_forest,
remove_scope_notes, insert_intra_before_1, insert_intra_1,
insert_intra_bb_scope_notes, insert_inter_bb_scope_notes,
rebuild_scope_notes, free_scope_forest_1, dump_scope_forest,
dump_scope_forest_1, get_next_bb_note, get_prev_bb_note): Remove.
(fixup_reorder_chain): Don't set scope for bb.
(insn_scopes, scope_to_insns_initialize, set_block_levels,
change_scope, scope_to_insns_finalize): New.
(cfg_layout_initialize, cfg_layout_finalize): Update to match.
* cfglayout.h (scope_def, scope): Remove.
(reorder_block_def): Remove scope member.
(scope_to_insns_initialize, scope_to_insns_finalize): Declare.
* haifa-sched.c: Revert reemit_other_notes change.
* sched-ebb.c (schedule_ebbs): Don't call remove_unnecessary_notes.
Use scope_to_insns_initialize and scope_to_insns_finalize.
* sched-rgn.c (schedule_insns): Likewise.
* gcc.dg/debug-6.c: New.
From-SVN: r48412
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* cfglayout.c (insert_intra_before_1): New.
(insert_inter_bb_scope_notes): Emit sibling block notes which don't
span multiple basic blocks.
* gcc.dg/debug-3.c: New test.
* gcc.dg/debug-4.c: New test.
* gcc.dg/debug-5.c: New test.
From-SVN: r48380
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* haifa-sched.c (reemit_other_notes): New.
(schedule_block): Use it.
* sched-ebb.c (schedule_ebbs): Call remove_unnecessary_notes.
* sched-rgn.c (schedule_insns): Likewise.
* cfglayout.c (remove_scope_notes): Handle removing note at
the end of the insn chain.
* function.c (debug_find_var_in_block_tree): New.
* gcc.dg/debug-1.c, gcc.dg/debug-2.c: New.
From-SVN: r48333
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* rtl.h (in_expr_list_p): New declaration.
* rtlanal.c (in_expr_list_p): New function.
* cfgcleanup.c: Reformatting and minor code rearrangement.
* cfglayout.c, cfgloop.c, cfgrtl.c: Likewise.
From-SVN: r48304
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* cfglayout.c (fixup_fallthru_exit_predecesor): Make void, rename
to ....
(fixup_fallthru_exit_predecessor): ... this.
Change callers and prototype.
From-SVN: r47098
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* cfglayout.c (fixup_fallthru_exit_predecesor): New static function.
(cfg_layout_finalize): Use it.
* bb-reorder.c (HAVE_epilogue): Remove.
(make_reorder_chain): Do not care special placement of
last basic block.
* predict.c (expected_value_to_br_prob): Delete the note
once transformed.
* c-decl.c (c_expand_body): Fix TV_EXPAND nesting problem;
measure integration time separately.
From-SVN: r47019
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* ChangeLog.2, ChangeLog.3, ChangeLog.4, ChangeLog.5, ChangeLog,
cfg.c, cfganal.c, cfgcleanup.c, cfglayout.c, cfgloop.c, cfgrtl.c,
collect2.c, combine.c, config.in, configure, configure.in,
conflict.c, dwarf2out.c, dwarfout.c, except.c, final.c, flow.c,
genattrtab.c, ggc-page.c, jump.c, lcm.c, predict.c, reg-stack.c,
reload1.c, rtlanal.c, sched-rgn.c, toplev.c, unwind-dw2-fde.h: Fix
spelling errors.
From-SVN: r46928
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depdendencies;
* Makefile.in (bb-reoder.o): Add depdendency on cfglayout.h;
remove unneded depdendencies;
(cfglayout.o): New.
* cfglayout.c, cfglayout.h: New files; break out from ...
* bb-reorder.c: ... here; Remove unneeded includes;
From-SVN: r46786
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