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-rw-r--r--gcc/builtins.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c
index f39a073951b..33102e08e55 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -3810,7 +3810,8 @@ expand_builtin_strcat (tree arglist, tree type, rtx target, enum machine_mode mo
fold (build_function_call_expr (strlen_fn,
build_tree_list (NULL_TREE,
dst)));
- /* Create (dst + strlen (dst)). */
+ /* Create (dst + (cast) strlen (dst)). */
+ newdst = fold_convert (TREE_TYPE (dst), newdst);
newdst = fold (build2 (PLUS_EXPR, TREE_TYPE (dst), dst, newdst));
/* Prepend the new dst argument. */