1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wstrict-overflow-17.c b/gcc/testsuite/gcc.dg/Wstrict-overflow-17.c
new file mode 100644
index 000000000..5625bc2a7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstrict-overflow-17.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow" } */
+
+/* This erroneously gave an overflow warning.  */
+
+extern void bar (char);
+void
+foo (char *s)
+{
+  int len, i;
+
+  for (len = 1; len < 5000; ++len)
+    {
+      for (i = 0; i < len; ++i)
+	{
+	  if (s[i] != '\0')
+	    bar (s[i]);
+	}
+    }
+}