1 files changed, 47 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fold-ior-2.c b/gcc/testsuite/gcc.dg/fold-ior-2.c
new file mode 100644
index 00000000000..41b372d06fa
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/fold-ior-2.c
@@ -0,0 +1,47 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-cddce1" } */
+
+int
+fn1 (int x)
+{
+  return ~x | x;
+}
+
+int
+fn2 (int x)
+{
+  return x | ~x;
+}
+
+unsigned int
+fn3 (unsigned int x)
+{
+  return ~x | x;
+}
+
+unsigned int
+fn4 (unsigned int x)
+{
+  return x | ~x;
+}
+
+int
+fn5 (int x)
+{
+  return ~x | (unsigned) x;
+}
+
+int
+fn6 (int x)
+{
+  return (unsigned) ~x | x;
+}
+
+int
+fn7 (int x)
+{
+  return ~(unsigned) x | x;
+}
+
+/* { dg-final { scan-tree-dump-not "~" "cddce1" } } */
+/* { dg-final { scan-tree-dump-not " \\| " "cddce1" } } */