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PR rtl-optimization/52800
* cprop.c (execute_rtl_cprop): Call cleanup_cfg with
CLEANUP_CFG_CHANGED.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@186081 138bc75d-0d04-0410-961f-82ee72b054a4
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* loop-init.c (loop_optimizer_init): If loops are preserved
perform incremental initialization of required loop features.
(loop_optimizer_finalize): If loops are to be preserved only
clean up optional loop features.
(rtl_loop_done): Forcefully free loops here.
* cgraph.c (cgraph_release_function_body): Forcefully free
loops.
* cfgexpand.c (expand_gimple_cond): Properly add new basic-blocks
to existing loops.
(construct_init_block): Likewise.
(construct_exit_block): Likewise.
(gimple_expand_cfg): Clear LOOP_CLOSED_SSA loop state. Cleanup
the CFG after expanding.
* cfgloop.c (verify_loop_structure): Calculate or verify
dominators. If we needed to calculate them, free them afterwards.
* tree-pass.h (PROP_loops): New define.
* tree-ssa-loop.c (pass_tree_loop_init): Provide PROP_loops.
* basic-block.h (CLEANUP_CFG_CHANGED): New.
* cfgcleanup.c (merge_blocks_move): Protect loop latches.
(cleanup_cfg): If we did something and have loops around, fix
them up.
* cse.c (rest_of_handle_cse_after_global_opts): Call cleanup_cfg
with CLEANUP_CFG_CHANGED.
* cfghooks.c (merge_blocks): If we merge a loop header into
its predecessor, update the loop structure.
(duplicate_block): If we copy a loop latch, adjust loop state
to note we may have multiple latches.
(delete_basic_block): Mark loops for fixup if we remove a loop.
* cfganal.c (forwarder_block_p): Protect loop latches, headers
and preheaders.
* cfgrtl.c (rtl_can_merge_blocks): Protect loop latches.
(cfg_layout_can_merge_blocks_p): Likewise.
* cprop.c (bypass_block): If we create a loop with multiple
entries, mark it for removal.
* except.c (emit_to_new_bb_before): Add the new basic-block
to existing loops.
* tree-eh.c (lower_resx): Likewise.
* omp-low.c (finalize_task_copyfn): Do not copy PROP_loops.
(expand_omp_taskreg): Likewise.
* tree-inline.c (initialize_cfun): Likewise.
* tree-mudflap.c (add_bb_to_loop): Prototype.
(mf_build_check_statement_for): Properly add new basic-blocks
to existing loops.
* tree-ssa-threadupdate.c (thread_block): Mark loops for fixup
if we remove a loop.
(thread_through_loop_header): Likewise.
* trans-mem.c (tm_log_emit_save_or_restores): Properly add
new basic-blocks to existing loops.
(expand_transaction): Likewise.
* Makefile.in (except.o): Add $(CFGLOOP_H).
(expr.o): Likewise.
(cgraph.o): Likewise.
(cprop.o): Likewise.
(cfgexpand.o): Likewise.
(cfganal.o): Likewise.
(trans-mem.o): Likewise.
(tree-eh.o): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@185913 138bc75d-0d04-0410-961f-82ee72b054a4
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* cprop.c (implicit_set_indexes): New global variable.
(insert_set_in_table): Add additional parameter and record implicit
set information.
(hash_scan_set): Add additional parameter and pass it to above.
(hash_scan_insn): Pass false to hash_scan_set.
(compute_hash_table_work): Pass true to hash_scan_set.
(compute_cprop_data): Add implicit set to AVIN of block which the
implicit set is recorded for.
(one_cprop_pass): Handle implicit_set_indexes array.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181446 138bc75d-0d04-0410-961f-82ee72b054a4
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(hash_scan_set): Rename PAT parameter into SET.
(cprop_pavloc): Rename into...
(cprop_avloc): ...this.
(cprop_absaltered): Rename into...
(cprop_kill): ...this.
(alloc_cprop_mem): Adjust for above renaming.
(free_cprop_mem): Likewise.
(compute_cprop_data): Likewise.
(compute_local_properties): Rename TRANSP parameter into KILL and
adjust throughout. Rework comments.
(try_replace_reg): Fix long line.
(cprop_jump): Likewise.
(constprop_register): Fix prototype and take INSN last.
(cprop_insn): Adjust calls to above function. Fix long lines.
(bypass_block): Likewise.
(one_cprop_pass): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181289 138bc75d-0d04-0410-961f-82ee72b054a4
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* cprop.c (try_replace_reg): Also try to replace uses of FROM that
appear in SET_DEST.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181011 138bc75d-0d04-0410-961f-82ee72b054a4
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PR rtl-opt/49474
* cprop.c (find_implicit_sets): Correct the condition.
2011-07-12 Andrew Pinski <pinskia@gmail.com>
PR rtl-opt/49474
* gcc.c-torture/compile/pr49474.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@176213 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@175051 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174864 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174848 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174700 138bc75d-0d04-0410-961f-82ee72b054a4
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(reg_use_table): Make an array of RTX.
(find_used_regs, constprop_register, local_cprop_pass,
bypass_block): Simplify users of reg_use_table.
(cprop_insn): Likewise. Iterate if copy propagation succeeded
on one of the uses found by find_used_regs.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171999 138bc75d-0d04-0410-961f-82ee72b054a4
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* cprop.c (one_cprop_pass): Do not mark_oprs_set of deleted insns.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171994 138bc75d-0d04-0410-961f-82ee72b054a4
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(expr_equiv_p): Remove.
(insert_set_in_table): Look at <dest, src> pair instead of expr.
(hash_scan_set): Update call to insert_set_in_table.
(dump_hash_table): Dump <dest, src> pair.
(lookup_set): Simplify. Lookup <dest, src> pair.
(compute_transp): Remove, fold heavily simplified code into...
(compute_local_properties): ...here. Expect COMP and TRANSP
unconditionally.
(find_avail_set): Take set directly from struct expr.
(find_bypass-set): Likewise.
(bypass_block): Likewise.
(cprop_insn): Likewise. Remove redundant INSN_P test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171947 138bc75d-0d04-0410-961f-82ee72b054a4
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checks on form of COND from find_implicit_sets to here.
(find_implicit_sets): Cleanup control flow. Split critical edges
if it exposes implicit sets. Allocate/resize implicit_sets as
necessary.
(one_cprop_pass): Only delete unreachable blocks if local_cprop_pass
changed something. Run df_analyze after find_implicit_sets if any
edges were split. Do not allocate implicit_sets here.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171946 138bc75d-0d04-0410-961f-82ee72b054a4
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(gcse_obstack): Renamed to cprop_obstack.
(GNEW, GNEWVEC, GNEWVAR): Remove.
(gmalloc): Remove.
(alloc_hash_table): Use XNEWVAR instead of GNEWVAR.
(GOBNEW, GOBNEWVAR): Adjust for gcse_obstack renaming.
(gcse_alloc): Likewise, and rename to cprop_alloc.
(alloc_gcse_men, free_gcse_mem): Remove.
(gcse_constant_p): Rename to cprop_constant_p, and adjust all callers.
(compute_hash_table_work): Allocate and free reg_set_bitmap here.
(one_cprop_pass): Likewise. Adjust for gcse_obstack renaming.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171945 138bc75d-0d04-0410-961f-82ee72b054a4
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(mark_set, mark_clobber): Remove.
(mark_oprs_set): Rewrite using DF_INSN_INFO_DEFS cache.
(reg_not_set_p): New function.
(find_avail_set): Use reg_not_set_p instead of oprs_not_set_p.
(cprop_insn): Likewise.
(cprop_jump): Use FOR_EACH_EDGE.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171944 138bc75d-0d04-0410-961f-82ee72b054a4
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(reg_avail_info): Remove.
(oprs_available_p): Remove.
(record_last_reg_set_info): Remove.
(record_last_set_info): Remove.
(reg_available_p): New function.
(gcse_constant_p): Do not treat unfolded conditions as constants.
(make_set_regs_unavailable): New function.
(hash_scan_set): Simplify with new reg_available_p.
(compute_hash_table_work): Traverse insns stream only once.
Do not compute reg_avail_info. Traverse insns in reverse order.
Record implicit sets after recording explicit sets from the block.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171794 138bc75d-0d04-0410-961f-82ee72b054a4
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* gcse.c: Move constant/copy propagation to cprop.c.
(compute_local_properties): Only handle expression tables.
(hash_scan_set, compute_hash_table_work, alloc_hash_table,): Likewise.
(one_pre_gcse_pass, one_code_hoisting_pass): Likewise.
(hash_set, insert_set_in_table, gcse_constant_p, lookup_set,
next_set, reset_opr_set_tables, oprs_not_set_p, mark_call, mark_set,
mark_clobber, mark_oprs_set, alloc_cprop_mem, free_cprop_mem,
compute_cprop_data, find_used_regs, try_replace_reg,
find_avail_set, cprop_jump, constprop_register, cprop_insn,
local_cprop_find_used_regs, do_local_cprop, local_cprop_pass,
fis_get_condition, implicit_set_cond_p, find_implicit_sets,
find_bypass_set, reg_killed_on_edge, bypass_block,
bypass_conditional_jumps, one_cprop_pass, gate_rtl_cprop,
execute_rtl_cprop, pass_rtl_cprop): Move to...
* cprop.c: ...here. New file, constant/copy propagation for RTL
moved from gcse.c to here with minor cleanups in duplicated code.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171627 138bc75d-0d04-0410-961f-82ee72b054a4
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