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-rw-r--r--gcc/builtins.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c
index e3c91dc..0436229 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -8970,7 +8970,8 @@ fold_builtin_memory_op (tree dest, tree src, tree len, tree type, bool ignore, i
}
srctype = TREE_TYPE (TREE_TYPE (src));
if (srctype
- && TREE_CODE (srctype) == ARRAY_TYPE)
+ && TREE_CODE (srctype) == ARRAY_TYPE
+ && !tree_int_cst_equal (TYPE_SIZE_UNIT (srctype), len))
{
srctype = TREE_TYPE (srctype);
STRIP_NOPS (src);
@@ -8978,7 +8979,8 @@ fold_builtin_memory_op (tree dest, tree src, tree len, tree type, bool ignore, i
}
desttype = TREE_TYPE (TREE_TYPE (dest));
if (desttype
- && TREE_CODE (desttype) == ARRAY_TYPE)
+ && TREE_CODE (desttype) == ARRAY_TYPE
+ && !tree_int_cst_equal (TYPE_SIZE_UNIT (desttype), len))
{
desttype = TREE_TYPE (desttype);
STRIP_NOPS (dest);