1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fwrapv-1.c b/gcc/testsuite/gcc.dg/fwrapv-1.c
new file mode 100644
index 000000000..f7ddda4a3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/fwrapv-1.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 2003 Free Software Foundation.
+
+   Test that the -fwrapv command line option is accepted and disables
+   "unsafe" optimizations that rely on undefined arithmetic overflow.
+
+   Written by Roger Sayle, 24th March 2003.  */
+
+/* { dg-do run } */
+/* { dg-options "-O2 -fwrapv" } */
+
+#include <limits.h>
+
+extern void abort ();
+
+int test(int x)
+{
+  return (2*x)/2;
+}
+
+main()
+{
+  int x = INT_MAX;
+
+  if (test(x) == x)
+    abort ();
+  return 0;
+}
+