1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr17581-1.c b/gcc/testsuite/gcc.dg/pr17581-1.c
new file mode 100644
index 000000000..b63517c84
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr17581-1.c
@@ -0,0 +1,30 @@
+/* PR rtl-optimization/17581 */
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+void abort (void);
+
+int foo(int x)
+{
+  unsigned long long tmp = 0;
+
+  switch(x) {
+    case 21:
+      tmp |= 1;
+      tmp |= 2;
+      tmp |= 8;
+      break;
+    default:
+      break;
+  }
+  
+  return (int)tmp;
+}
+
+int main()
+{
+  if (foo(21) != 11)
+    abort ();
+  return 0;
+}
+