| Age | Commit message (Collapse) | Author | Files | Lines |
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From-SVN: r44498
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* i386.c (ix86_output_main_function_alignment_hack): New function.
(TARGET_ASM_FUNCTION_PROLOGUE): Default to it.
* flow.c (mark_dfs_back_edges): Move from loop_p ; mark back
edges by EDGE_DFS_BACK flag.
(dump_edge_info): Add dfs_back flag.
* basic-block.h (EDGE_DFS_BACK): New constant.
(mark_dfs_back_edges): Declare.
* alias.c (loop_p): Remove.
(mark_constant_function): Use mark_dfs_back_edges.
* reg-stack.c (block_info_def): Add predecesors counter and stack_out.
(reg_to_stack): Call mark_dfs_back_edges; count the predecesors.
(compensate_edge): Break out from ...
(convert_regs_1): ... here; do smart choosing of stack_out to copy.
(convert_regs_2): Set block_done once block is really done;
Do updating of the predecesors counts.
* toplev.c (rest_of_compilation): Recompute block_for_insn
before post-reload cfg_cleanup.
* function.c (thread_prologue_epilogue_insns):
Call set_block_for_new_insns when emitting prologue directly.
From-SVN: r44486
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* flow.c (mark_set_1): Use REG_FREQ_FROM_BB.
(attempt_auto_inc): LIkewise.
(mark_used_reg): Likewise.
(try_pre_increment_1): Likewise.
* regclass.c (regclass): Likewise.
* global.c (allocno_compare): Update comment; change scaling factor.
* local-alloc.c (QTY_CMP_PRI): Likewise.
* regs.h (REG_FREQ_FROM_BB): New.
(REG_FREQ_MAX): Likewise.
From-SVN: r44483
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* basic-block.h (CLEANUP_PRE_LOOP): New.
* except.c (finish_eh_generation): Update call of cleanup_cfg.
* sibcall.c (optimize_sibling_calls): Likewise.
* toplev.c (rest_of_compilation): Likewise.
* flow.c (try_forward_edges): Take argument MODE;
do not forward over loop pre-headers if CLEANUP_PRE_LOOP.
(try_optimize_cfg): Update call of try_forward_edges.
* (validate_replace_rtx_1): Fix simplification of MINUS.
From-SVN: r44458
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* flow.c (life_analysis): Elide PROP_ALLOW_CFG_CHANGES if
not optimizing.
From-SVN: r44451
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* 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
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* 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
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* flow.c (last_loop_beg_note): New function.
(redirect_edge_and_branch): Use it.
(split_edge): Likewise.
* alias.c (loop_p): Avoid uninitialized memory access.
* flow.c (try_forward_edges): Avoid accessing freed memory.
* flow.c (backward_edge_of_syntactic_loop_p): Avoid uninitialized
variable access.
From-SVN: r44429
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* flow.c (redirect_edge_and_branch_force): Test
target->global_live_at_start.
From-SVN: r44412
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* 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
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* 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
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* flow.c (delete_dead_jumptables): New function.
(life_analyzis): Call it.
* bb-reorder.c (skip_insns_after_block): Handle contradictive sequences.
From-SVN: r44365
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* flow.c (find_sub_basic_blocks): Fix handling of the last BB in
the sequence.
(make_edges): New argument update_p; populate the edge cache if set.
(find_basic_blocks): Update make_edges invocation.
Co-Authored-By: Richard Henderson <rth@redhat.com>
From-SVN: r44335
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* flow.c (try_simplify_condjump): Avoid duplicated edges.
(verify_flow_info): Check for duplicated edges; clarify
error reporting.
* flow.c (block_label): Update basic_block_for_insn.
(commit_edge_insertions): Call compute_bb_for_insn.
* flow.c (purge_dead_edges): Handle conditional jumps and conditional
returns too.
* flow.c (redirect_edge_and_branch,
try_optimize_cfg): Use redirect_edge_succ_nodup
(redirect_edge_succ_nodup): New.
* basic_block.h (redirect_edge_succ_nodup): Declare.
* toplev.c (rest_of_compilation): Rebuild CFG before cfg_cleanup
after gcse.
From-SVN: r44320
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* flow.c (try_forward_edges): Accept fallthru edge; Update comment.
(try_crossjump_to_edge): Update commetns.
(try_crossjump_bb): Likewise.
From-SVN: r44318
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From-SVN: r44290
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From-SVN: r44287
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can_fallthru.
* flow.c (try_simplify_condjump): Unlink insn chain on
fallthru edge; use can_fallthru.
From-SVN: r44268
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* basic-block.h (find_sub_basic_block): Declare.
* flow.c (make_edges): New arguments MIN and MAX;
(find_sub_basic_blocks): Revamp to use make_edges
and purge_dead_edges.
(find_basic_blocks): Update call of find_sub_basic_block.
* recog.c (split_all_insns): Always expect CFG to be consistent;
call find_sub_basic_blocks in case something has changed.
* toplev.c (rest_of_compilation): Always call split_all_insns once CFG
has been built.
* basic-block.h (delete_noop_moves): Declare.
* combine.c (combine_instructions): Call it.
(recog_for_combine): Tolerate noop moves
(distribute_notes): Force refresh when register dies at noop move.
* flow.c (delete_noop_moves): Use BB structure; delete JUMP insns
too.
(life_analysis): Update delete_noop_moves call.
(set_noop_p): Move too ...
* rtlanal.c (noop_move_p): ... here.
* rtl.h (noop_move_p): Declare.
* basic-block.h (purge_all_dead_edges, purge_dead_edges): New functions.
* toplev.c (rest_of_compilation): Conditionally call purge_all_dead_edges
after combine.
* gcse.c (cprop_cc0_jump, cprop_insn): New argument "basic_block".
(cprop_jump): Likewise; call purge_dead_edges if substitution suceeded.
From-SVN: r44267
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* flow.c: Grammar check and clarify a lot of comments.
(try_simplify_condjump): Rename variables to be clearer.
(try_forward_edges): Skip complex and fallthru edges.
Rearrange tests to avoid duplicate checks.
(flow_find_cross_jump): Likewise.
(outgoing_edges_match): Allow match if neither branch has
probability data. Loosen probability match to 5%.
(try_crossjump_to_edge): Hoist repeated indirection into
local variables.
(try_crossjump_bb): Don't check complex edges. Eliminate
redundant crossjump tests.
(try_optimize_cfg): Fix use of bool. Reorganize cheaper
checks before more expensive checks.
From-SVN: r44257
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splitting before a label.
* flow.c (split_block): Make sure bb_note is included in the
new block when splitting before a label.
From-SVN: r44250
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* basic-block.h (redirect_edge_and_branch_force,
redirect_edge_and_branch, block_label, forwarder_block_p): Declare.
* flow.c (redirect_edge_and_branch_force,
redirect_edge_and_branch, block_label, forwarder_block_p): Make global.
(redirect_edge_and_branch_force): Fix copying of lifeness information.
(block_label): Handle EXIT_BLOCK_PTR by returning NULL.
* ifcvt.c (dead_or_predictable): Take BB as an new destionation
instead of label; update CFG after transformation.
(find_if_case_1): Update call, use redirect_edge_and_branch_force
for finishing the transformation; handle even case where ELSE
does not follow THEN.
(find_if_case_2): Update call of dead_or_predictable; simplify
CFG update.
* emit-rtl.c (split_branch_probability): New global variable.
(try_split): Take care to set split_branch_probability and
create REG_BR_PROB note for new jump insns.
* md.texi (define_split): Document new feature.
* i386.c (ix86_split_fp_branch): Redistribute branch probability notes.
From-SVN: r44249
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delete in the presence of cc0 in a jump insn.
* flow.c (try_redirect_by_replacing_jump): Correctly compute which
insns to delete in the presence of cc0 in a jump insn.
From-SVN: r44217
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* flow.c (redirect_edge_and_branch): Bail out on complex edges.
(try_optimize_cfg): Do not remove tail recursive labels before sibcall.
* jump.c (mark_jump_label): Do not forward branches.
Co-Authored-By: Jan Hubicka <jh@suse.cz>
From-SVN: r44118
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* config/i386/unix.h (ASM_OUTPUT_MI_THUNK): Fix output format for
x86-64 pic support.
* lcm.c (optimize_mode_switching): Avoid warning for unused
variable if !NORMAL_MODE
* flow.c (try_crossjump_to_edge): Remove unused variable.
From-SVN: r44062
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* basic-block.h (CLEANUP_PRE_SIBCALL): New constant.
* except.c (finish_eh_generation): Update call of cleanup_cfg;
do rebuild_jump_labels instead of jump_optimize
* sibcall.c (optimize_sibling_and_tail_recursive_call): Likewise.
* toplev.c (rest_of_compulation): Likewise for -Wreturn_type.
* flow.c (try_optimize_cfg): Remove unneeded code_labels.
* flow.c: Include timevar.h
(find_basic_block): Push/pop timevar;
(cleanup_cfg): Likewise.
* timevar.def (TV_CFG, TV_CLEANUP_CFG): New.
* Makefile: Add dependencies on timevar.h
* integrate.c (save_for_inline): Kill all BASIC_BLOCK notes.
(copy_insn_list): Avoid killing of BASIC_BLOCK notes.
* rtl.h (delete_trivially_dead_insns): Add new parameter.
* toplev.c (rest_of_compilation): Update calls.
* cse.c (set_live_p, insn_live_p, dead_libcall_p): Break out from ...
(delete_trivially_dead_insns): ... here; accept new argument
preserve_basic_blocks; preserve basic blocks if set.
* reg-stack.c (stack_regs_mentioned): Return 0 if
stack_regs_mentioned_data is not initialized.
(reg_to_stack): Make stack_regs_mentioned survive after the
reg-stack is completted; do not call cleanup_cfg.
* toplev.c (rest_of_compilation): Do cleanup_cfg before bb-reorder;
make cleanup_cfg after bb-reorder to output to debug file.
From-SVN: r44056
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* hard-reg-set.h (regs_invalidated_by_call): Declare.
* regclass.c (regs_invalidated_by_call): Move from cse.c.
(init_reg_sets_1): Move initialization from cse_main.
* cse.c (regs_invalidated_by_call): Move to regclass.c.
(cse_main): Move its initialization also.
* df.c (df_insn_refs_record): Use regs_invalidated_by_call.
* flow.c (propagate_one_insn): Likewise.
* gcse.c (compute_hash_table): Likewise.
(compute_kill_rd, compute_store_table): Likewise.
* sched-deps.c (sched_analyze_1): Likewise.
From-SVN: r44053
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global_live_at_end.
* flow.c (redirect_edge_and_branch_force): Initialize
global_live_at_start and global_live_at_end.
(allocate_bb_life_data): Export.
* basic-block.h (allocate_bb_life_data): Declare it.
* toplev.c (rest_of_compilation): Call it.
From-SVN: r44023
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* emit-rtl.c (try_split): Update mark_jump_label call.
* flow.c (find_sub_basic_blocks): Likewise.
* jump.c (cross_jump_death_matters, find_cross_jump, do_cross_jump,
jump_back_p): Kill.
(mark_all_labels): Kill second parameter.
(jump_optimize, jump_optimize_1): Kill cross_jump parameter.
(rebuild_jump_labels, jump_optimize_minimal): Update call
of jump_optimize_1.
(jump_optimize_1): Kill crossjumping code.
(mark_jump_label): Kill cross_jump parameter.
* rtl.h (mark_jump_label, jump_optimize): Update prototypes.
(JUMP_CROSS_JUMP, JUMP_CROSS_JUMP_DEATH_MATTERS): Kill.
* reg-stack.c (reg_to_stack): Do not rebuild if not needed; do
splitting.
* toplev.c (enum dump_file_index): Kill DFI_jump2; put DFI_stack before
DFI_bpro.
(dump_file_info): Likewise.
(rest_of_compilation): Update calls to jump_optimize; kill jump2 pass;
reorganize passes to do reg-stack first, bb-reorder second.
* invoke.texi (-d letters doc): Remove the jump2 pass.
From-SVN: r44008
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* bb-reorder.c (skip_insn_after_block): Get past the line number notes.
* flow.c (redirect_edge_and_branch_force, split_edge,
try_crossjump_to_edge): Use set_block_for_new_insns.
* bb-reorder.c (emit_jump_to_block_after): Call set_block_for_new_insns.
From-SVN: r44002
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From-SVN: r43986
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* emit-rtl.c (try_split): Update mark_jump_label call.
* flow.c (find_sub_basic_blocks): Likewise.
* jump.c (cross_jump_death_matters, find_cross_jump, do_cross_jump,
jump_back_p): Kill.
(mark_all_labels): Kill second parameter.
(jump_optimize, jump_optimize_1): Kill cross_jump parameter.
(rebuild_jump_labels, jump_optimize_minimal): Update call
of jump_optimize_1.
(jump_optimize_1): Kill crossjumping code.
(mark_jump_label): Kill cross_jump parameter.
* rtl.h (mark_jump_label, jump_optimize): Update prototypes.
(JUMP_CROSS_JUMP, JUMP_CROSS_JUMP_DEATH_MATTERS): Kill.
* reg-stack.c (reg_to_stack): Do not rebuild if not needed; do
splitting.
* toplev.c (enum dump_file_index): Kill DFI_jump2; put DFI_stack before
DFI_bpro.
(rest_of_compilation): Update calls to jump_optimize; kill jump2 pass;
reorganize passes to do reg-stack first, bb-reorder second.
* invoke.texi (-d letters doc): Remove the jump2 pass.
From-SVN: r43979
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* flow.c (try_optimize_cfg): Delete whole chain of trivially dead
basic blocks.
(verify_flow_info): Make diagnostics prettier.
From-SVN: r43967
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* flow.c (find_basic_blocks_1): Do not emit NOP after call.
* flow.c (outgoing_edges_match): Return early if condition reversal
failed.
From-SVN: r43965
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edge is present.
* flow.c (merge_blocks_move_successor_nojumps): Do not crash
when fallthru edge is present.
(mege_blocks): Handle case where creation of jump insn
is required.
* basic-block.h (CLEANUP_EXPENSIVE, CLEANUP_CROSSJUMP,
CLEANUP_POST_REGSTACK): New constants.
* except.c (finish_eh_generation): Update call of cleanup_cfg,
* jump.c (rtx_renumbered_equal_p): Handle 't' fields.
* output.h (cleanup_cfg): Update prototype.
* reg-stack.c (reg_to_stack): Use cleanup_cfg instead of jump_optimize
* sibcall.c (optimize_sibling_and_tail_recursive_call): Update
cleanup_cfg call; kill missleading comment.
* toplev.c (rest_of_compilation): Update all cleanup_cfg calls.
* flow.c (merge_blocks, try_optimize_cfg, cleanup_cfg): Accept mode
parameter; control optimizations performed using it.
(flow_find_cross_jump, outgoing_edges_match, try_crossjump_to_edge,
try_crossjump_bb): New functions.
From-SVN: r43950
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vectors/g
* gcse.c, lcm.c, sched-deps.c:
s/free on sbitmap vectors/sbitmap_vector_free on sbitmap vectors/g
* flow.c (flow_loops_find): Free dom if we found no loops, since
we aren't going to save it.
* lcm.c (pre_edge_rev_lcm): Free st_antin, st_antout when we are
done.
From-SVN: r43938
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2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl>
* regmove.c (replace_in_call_usage): Fix warnings.
* sched-deps.c (add_dependence): Fix warnings.
* simplify-rtx.c (simplify_subreg): Likewise.
Return NULL_RTX instead of NULL.
* reg-stack.c (emit_swap_insn): Eliminate warnings.
(subst_asm_stack_regs): Likewise.
* combine.c (num_sign_bit_copies): Cast bitwidth to int to avoid
warnings.
* dwarf2out.c (output_call_frame_info): Declare i as int.
(build_abbrev_table): Declare n_alloc as int.
(dwarf2out_finish): Initialize die.
* except.c: Declare sjlj_funcdef_number as unsigned.
(connect_post_landing_pads): Declare j as unsigned.
(convert_to_eh_region_ranges): Initialize call_site.
(output_function_exception_table): Initialize tt_format_size.
* expr.c (move_by_pieces_1): Initialize to1.
(store_constructor): Initialize minelt and maxelt.
* flow.c (mark_regs_live_at_end): Declare i as unsigned.
* function.c (instantiate_decls): Avoid signed/unsigned warning.
* c-decl.c (combine_parm_decls): Unused, remove.
* c-tree.h: Remove prototype for combine_parm_decls.
* reload.c (push_reload): Fix warning.
(regno_clobbered_p): Likewise.
* reload1.c (replace_pseudos_in_call_usage): Likewise.
(reload_combine): Likewise.
* bitmap.c: Rename bitmap_zero to bitmap_zero_bits to fix warnings.
* bitmap.h: Rename bitmap_zero to bitmap_zero_bits to fix
warnings.
* bitmap.c (bitmap_operation): Change user.
* bitmap.h (EXECUTE_IF_AND_COMPL_IN_BITMAP): Likewise.
For cp/:
2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl>
* call.c (build_op_delete_call): Initialize fn.
(convert_like_real): Delete conditional.
(joust): Initialize *w and *l.
* class.c: Add prototype for binfo_ctor_vtable.
(get_primary_binfo): Initialize result.
* init.c (build_java_class_ref): Initialize name.
* typeck.c (unary_complex_lvalue): Do not duplicate the
argument to modify, pre-, or post-increment when used as an
lvalue and when the argument has side-effects.
For ch/:
2001-07-10 Jan van Male <jan.vanmale@fenk.wau.nl>
* ch-tree.h: Remove prototype for combine_parm_decls, unused
function.
From-SVN: r43893
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2001-07-09 Diego Novillo <dnovillo@redhat.com>
* basic-block.h (tree_node): Forward declare if needed.
(struct basic_block_def): Add fields 'head_tree' and 'end_tree'.
(BLOCK_HEAD_TREE): Define.
(BLOCK_END_TREE): Define.
(struct loops): Rename field 'tree' to 'tree_root'.
* flow.c (entry_exit_blocks): Add initializers for 'head_tree' and
'end_tree'.
(flow_loops_tree_build): Rename reference to field 'tree' to
'tree_root'.
(flow_loops_level_compute): Ditto.
* predict.c (estimate_bb_frequencies): Ditto.
* tree.h (struct tree_common): Add field 'aux'.
From-SVN: r43886
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* flow.c (redirect_edge_and_branch_force): New.
(can_fallthru): Ensure that basic blocks are succeeding.
(try_optimize_cfg): Do not delete basic block if it is the last one.
* flow.c (try_redirect_by_replacing_jump): Do not remove
jumps with side effects, unlink chain on fallthru edge;
set block for new jump instruction; avoid basic block to
over by line number note.
* flow.c (try_simplify_condjump): Verify that the condjump
is not always falling trought.
Re-install patch:
* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.
* flow.c (forwarder_block_p): Fix for fallthru blocks.
(try_redirect_by_replacing_jump): Update properly the count
and frequency information.
From-SVN: r43867
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* basic-block.h (first_insn_after_basic_block_note): Declare.
* flow.c (first_insn_after_basic_block_note): Define. Moved
from...
* ssa.c (first_insn_after_basic_block_note): Remove.
* ssa-dce.c (find_inherently_necessary): Consider BARRIERs
necessary.
(ssa_eliminate_dead_code): Properly update the CFG and PHI
nodes when we find a dead conditional branch. Insert BARRIERs
after any blocks with no successors, but which do not have
any BARRIERs.
From-SVN: r43816
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2001-07-05 Jeffrey Oldham <oldham@codesourcery.com>
* flow.c: Reverse Jan Hubicka's patch of 02July2001.
(try_redirect_by_replacing_jump): Reverse updating properly the
count and frequency information. Reverse removing cc0 setter.
(forwarder_block_p): Reverse fixing for fallthru blocks.
From-SVN: r43788
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* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.
* flow.c (forwarder_block_p): Fix for fallthru blocks.
(try_redirect_by_replacing_jump): Update properly the count
and frequency information.
From-SVN: r43708
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From-SVN: r43695
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2001-06-28 Diego Novillo <dnovillo@redhat.com>
* flow.c (dump_bb): Remove unused third argument to call
to fprintf when displaying the basic block header.
From-SVN: r43649
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* Makefile.in (OBJS): Add df.o
(df.o): Add dependencies.
* basic-block.h (flow_depth_first_order_compute): Declare.
* flow.c (flow_depth_first_order_compute): No longer declare.
Make external.
* df.c, df.h: New files.
* po/POTFILES.in: Update for new files.
From-SVN: r43647
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simplifications on the CFG.
* flow.c (try_merge_block): Rename to try_optimize_cfg;
do basic simplifications on the CFG.
(is_forwarder_block_p, can_fallthru, try_redirect_by_replacing_jump,
try_simplify_condjump): New.
(redirect_edge_and_branch): Try replace jump insn.
(flow_delete_insn): Handle deleting of ADDR_VEC insns.
* basic-block.h (FALLTHRU_EDGE, BRANCH_EDGE): New macros.
From-SVN: r43642
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* i386.md (cmp?i): Simplify; refuse immediate operand
in alternative 0
* i386.c (cmpsi_operand): Refuse constants.
* i386.md (movsi_insv_1, movsi_insv_1_rex64): Allow immediate operand.
* flow.c (block_label, redirect_edge_and_branch): Split out from ....
(split_edge) .... here;
From-SVN: r43635
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From-SVN: r43527
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* flow.c (mark_set_1, attempt_auto_inc, mark_used_reg,
try_pre_increment_1): compute REG_FREQ using bb->frequency.
* regclass.c (loop_cost): Kill.
(frequency): New global variable.
(record_operand_costs): Replace loop_cost by frequency.
(scan_one_insn): Likewise.
(regclass): Likewise; set frequency according to bb->frequency.
* flow.c (split_edge): Set frequency.
From-SVN: r43523
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* predict.c (block_info_def): Add nvisited.
(propagate_freq): Count nvisited; re-queue delayed blocks; handle
irreducible regions.
* flow.c (dump_edge_info): Dump the probability of edge.
(combine_predictions_for_insn): Dump the basic block.
From-SVN: r43522
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