1 files changed, 67 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/shiftopt-1.c b/gcc/testsuite/gcc.c-torture/execute/shiftopt-1.c
new file mode 100644
index 000000000..8c855b888
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/shiftopt-1.c
@@ -0,0 +1,67 @@
+/* Copyright (C) 2002  Free Software Foundation
+
+   Check that constant folding of shift operations is working.
+
+   Roger Sayle, 10th October 2002.  */
+
+extern void abort (void);
+extern void link_error (void);
+
+void
+utest (unsigned int x)
+{
+  if (x >> 0 != x)
+    link_error ();
+
+  if (x << 0 != x)
+    link_error ();
+
+  if (0 << x != 0)
+    link_error ();
+
+  if (0 >> x != 0)
+    link_error ();
+
+  if (-1 >> x != -1)
+    link_error ();
+
+  if (~0 >> x != ~0)
+    link_error ();
+}
+
+void
+stest (int x)
+{
+  if (x >> 0 != x)
+    link_error ();
+
+  if (x << 0 != x)
+    link_error ();
+
+  if (0 << x != 0)
+    link_error ();
+
+  if (0 >> x != 0)
+    link_error ();
+}
+
+int
+main ()
+{
+  utest(9);
+  utest(0);
+
+  stest(9);
+  stest(0);
+
+  return 0;
+}
+
+#ifndef __OPTIMIZE__
+void
+link_error ()
+{
+  abort ();
+}
+#endif
+