--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/fold-andxor-1.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,28 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-original" } */
+
+int test1(int a, int b)
+{
+  return (a ^ b) & a;
+}
+
+int test2(int c, int d)
+{
+  return (c ^ d) & d;
+}
+
+int test3(int e, int f)
+{
+  return e & (e ^ f);
+}
+
+int test4(int g, int h)
+{
+  return g & (h ^ g);
+}
+
+/* { dg-final { scan-tree-dump-times "~b \& a" 1 "original" } } */
+/* { dg-final { scan-tree-dump-times "~c \& d" 1 "original" } } */
+/* { dg-final { scan-tree-dump-times "~f \& e" 1 "original" } } */
+/* { dg-final { scan-tree-dump-times "~h \& g" 1 "original" } } */
+