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--disable-checking))
2011-07-12 Andrew Pinski <pinskia@gmail.com>
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.
From-SVN: r176213
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From-SVN: r175051
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From-SVN: r174864
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From-SVN: r174848
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From-SVN: r174700
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* cprop.c (struct reg_use): Remove.
(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.
From-SVN: r171999
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PR middle-end/48441
* cprop.c (one_cprop_pass): Do not mark_oprs_set of deleted insns.
From-SVN: r171994
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* cprop.c (struct expr): Split 'expr' field in 'dest' and 'src'.
(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.
From-SVN: r171947
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* cprop.c (implicit_set_cond_p): Assume nothing about COND, move
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.
From-SVN: r171946
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* cprop.c: s/gcse/cprop/ everywhere except for flag_gcse.
(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.
From-SVN: r171945
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* cprop.c (oprs_not_set_p): Remove.
(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.
From-SVN: r171944
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* cprop.c: Clean up hash table building.
(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.
From-SVN: r171794
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* Makefile.in: New rule for cprop.o.
* 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.
From-SVN: r171627
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