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authorRichard Guenther <rguenther@suse.de>2005-11-19 21:40:28 +0000
committerRichard Biener <rguenth@gcc.gnu.org>2005-11-19 21:40:28 +0000
commit41b9109a5565194e18132b8949b1952feab6557a (patch)
tree86cca737b2d981739302836702a628969d5411f1 /gcc/fold-const.c
parent815d8045e0779059e39afdcd9cf372412287a5b9 (diff)
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fold-const.c (fold_indirect_ref_1): Make sure we fold ARRAY_REFs of constant strings.
2005-11-19 Richard Guenther <rguenther@suse.de> * fold-const.c (fold_indirect_ref_1): Make sure we fold ARRAY_REFs of constant strings. From-SVN: r107229
Diffstat (limited to 'gcc/fold-const.c')
-rw-r--r--gcc/fold-const.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index b8576fc..c4dd4f9 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -11523,9 +11523,15 @@ fold_indirect_ref_1 (tree type, tree op0)
{
tree op = TREE_OPERAND (sub, 0);
tree optype = TREE_TYPE (op);
- /* *&p => p */
+ /* *&p => p; make sure to handle *&"str"[cst] here. */
if (type == optype)
- return op;
+ {
+ tree fop = fold_read_from_constant_string (op);
+ if (fop)
+ return fop;
+ else
+ return op;
+ }
/* *(foo *)&fooarray => fooarray[0] */
else if (TREE_CODE (optype) == ARRAY_TYPE
&& type == TREE_TYPE (optype))