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re PR tree-optimization/56150 (ICE segfault in do_pre / tail_merge_optimize)

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2013-01-31  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/56150
	* tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Do not
	visit virtual operands.
	(find_uses_to_rename_bb): Likewise.

From-SVN: r195609
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Richard Biener 2013-01-31 08:53:43 +00:00 committed by Richard Biener
parent fcfa87ac3d
commit 636f59cfb3
2 changed files with 12 additions and 4 deletions
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9
gcc/ChangeLog
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@ -1,4 +1,11 @@
2013-01-30 Richard Biener <rguenther@suse.de>
2013-01-31 Richard Biener <rguenther@suse.de>
PR tree-optimization/56150
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Do not
visit virtual operands.
(find_uses_to_rename_bb): Likewise.
2013-01-31 Richard Biener <rguenther@suse.de>
PR tree-optimization/56150
* tree-ssa-tail-merge.c (gimple_equal_p): Properly handle

7
gcc/tree-ssa-loop-manip.c
View File

@ -402,7 +402,7 @@ find_uses_to_rename_stmt (gimple stmt, bitmap *use_blocks, bitmap need_phis)
if (is_gimple_debug (stmt))
return;
FOR_EACH_SSA_TREE_OPERAND (var, stmt, iter, SSA_OP_ALL_USES)
FOR_EACH_SSA_TREE_OPERAND (var, stmt, iter, SSA_OP_USE)
find_uses_to_rename_use (bb, var, use_blocks, need_phis);
}
@ -422,8 +422,9 @@ find_uses_to_rename_bb (basic_block bb, bitmap *use_blocks, bitmap need_phis)
for (bsi = gsi_start_phis (e->dest); !gsi_end_p (bsi); gsi_next (&bsi))
{
gimple phi = gsi_stmt (bsi);
find_uses_to_rename_use (bb, PHI_ARG_DEF_FROM_EDGE (phi, e),
use_blocks, need_phis);
if (! virtual_operand_p (gimple_phi_result (phi)))
find_uses_to_rename_use (bb, PHI_ARG_DEF_FROM_EDGE (phi, e),
use_blocks, need_phis);
}
for (bsi = gsi_start_bb (bb); !gsi_end_p (bsi); gsi_next (&bsi))