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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/tree-if-conv.c10
2 files changed, 12 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2d99d1f..ab57f35 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2007-07-16 Richard Guenther <rguenther@suse.de>
+ Uros Bizjak <ubizjak@gmail.com>
+
+ * tree-if-conv.c (find_phi_replacement_condition): Unshare "*cond"
+ before forcing it to gimple operand.
+
2007-07-16 Sandra Loosemore <sandra@codesourcery.com>
David Ung <davidu@mips.com>
diff --git a/gcc/tree-if-conv.c b/gcc/tree-if-conv.c
index b18de42..044c2b9 100644
--- a/gcc/tree-if-conv.c
+++ b/gcc/tree-if-conv.c
@@ -751,7 +751,7 @@ find_phi_replacement_condition (struct loop *loop,
if (TREE_CODE (*cond) == TRUTH_NOT_EXPR)
/* We can be smart here and choose inverted
condition without switching bbs. */
- *cond = invert_truthvalue (*cond);
+ *cond = invert_truthvalue (*cond);
else
/* Select non loop header bb. */
first_edge = second_edge;
@@ -770,9 +770,11 @@ find_phi_replacement_condition (struct loop *loop,
/* Create temp. for the condition. Vectorizer prefers to have gimple
value as condition. Various targets use different means to communicate
- condition in vector compare operation. Using gimple value allows compiler
- to emit vector compare and select RTL without exposing compare's result. */
- *cond = force_gimple_operand_bsi (bsi, *cond, false, NULL_TREE,
+ condition in vector compare operation. Using gimple value allows
+ compiler to emit vector compare and select RTL without exposing
+ compare's result. */
+ *cond = force_gimple_operand_bsi (bsi, unshare_expr (*cond),
+ false, NULL_TREE,
true, BSI_SAME_STMT);
if (!is_gimple_reg (*cond) && !is_gimple_condexpr (*cond))
{