1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree.c b/gcc/tree.c
index 849482d3..4ee70bf 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -1053,6 +1053,8 @@ build_string (int len, const char *str)
 
   memset (s, 0, sizeof (struct tree_common));
   TREE_SET_CODE (s, STRING_CST);
+  TREE_CONSTANT (s) = 1;
+  TREE_INVARIANT (s) = 1;
   TREE_STRING_LENGTH (s) = len;
   memcpy ((char *) TREE_STRING_POINTER (s), str, len);
   ((char *) TREE_STRING_POINTER (s))[len] = '\0';