1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/strlenopt-35.c b/gcc/testsuite/gcc.dg/strlenopt-35.c
new file mode 100644
index 00000000000..03b3e13a8e2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/strlenopt-35.c
@@ -0,0 +1,31 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -fdump-tree-strlen" } */
+
+#include "strlenopt.h"
+
+volatile int v;
+
+size_t
+f1 (char *a1)
+{
+  v += 1;
+  size_t x = strlen (a1);
+  char *a2 = a1 + x;
+  a2[0] = '1';
+  a2[1] = '2';
+  a2[2] = '3';
+  a2[3] = 0;
+  return strlen (a1);
+}
+
+int
+main ()
+{
+  char a[30];
+  strcpy (a, "abcd");
+  if (f1 (a) != 7)
+    abort ();
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "strlen \\(" 1 "strlen" } } */