1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wstrict-overflow-13.c b/gcc/testsuite/gcc.dg/Wstrict-overflow-13.c
new file mode 100644
index 000000000..170d13777
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstrict-overflow-13.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=2" } */
+
+/* Source: Ian Lance Taylor.  Dual of no-strict-overflow-6.c.  */
+
+/* VRP test.  This turns into an infinite loop (depending on what
+   bigtime_test does), but at least we warn about it.  */
+
+extern int bigtime_test (int);
+int
+foo ()
+{
+  int j;
+  for (j = 1; 0 < j; j *= 2) /* { dg-warning "assuming signed overflow does not occur" "correct warning" } */
+    if (! bigtime_test (j))
+      return 1;
+  return 0;
+}