1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wstrict-overflow-11.c b/gcc/testsuite/gcc.dg/Wstrict-overflow-11.c
new file mode 100644
index 000000000..3caf1cb6f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstrict-overflow-11.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=1" } */
+
+/* Based on strict-overflow-5.c.  */
+
+/* We can only unroll when using strict overflow semantics.  But we
+   don't issue a warning for relying on undefined overflow in
+   loops.  */
+
+int foo (int i)
+{
+  int index;
+  int r=0;
+ 
+  for (index = i; index <= i+4; index+=2)
+    r++;
+ 
+  return r;
+}