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tree-ssa-forwprop.c (simplify_bitwise_binary): Don't directly use def1/def2. 

2012-04-24  Andrew Pinski  <apinski@cavium.com>

	* tree-ssa-forwprop.c (simplify_bitwise_binary):
	Don't directly use def1/def2.

From-SVN: r186757
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Andrew Pinski 2012-04-24 08:43:33 +00:00 committed by Andrew Pinski
parent e1b435ad06
commit 8eddb62513
2 changed files with 8 additions and 3 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-04-24 Andrew Pinski <apinski@cavium.com>
* tree-ssa-forwprop.c (simplify_bitwise_binary):
Don't directly use def1/def2.
2012-04-24 Richard Guenther <rguenther@suse.de> 2012-04-24 Richard Guenther <rguenther@suse.de>
PR tree-optimization/53098 PR tree-optimization/53098

6
gcc/tree-ssa-forwprop.c
View File

@ -1913,10 +1913,10 @@ simplify_bitwise_binary (gimple_stmt_iterator *gsi)
/* Simplify (A & B) OP0 (C & B) to (A OP0 C) & B. */ /* Simplify (A & B) OP0 (C & B) to (A OP0 C) & B. */
if (def1_code == def2_code if (def1_code == def2_code
&& def1_code == BIT_AND_EXPR && def1_code == BIT_AND_EXPR
&& operand_equal_for_phi_arg_p (gimple_assign_rhs2 (def1), && operand_equal_for_phi_arg_p (def1_arg2,
gimple_assign_rhs2 (def2))) def2_arg2))
{ {
tree b = gimple_assign_rhs2 (def1); tree b = def1_arg2;
tree a = def1_arg1; tree a = def1_arg1;
tree c = def2_arg1; tree c = def2_arg1;
tree inner = fold_build2 (code, TREE_TYPE (arg2), a, c); tree inner = fold_build2 (code, TREE_TYPE (arg2), a, c);