--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bitops-1.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,72 @@
+/* { dg-do run } */
+/* { dg-options "-O -fdump-tree-optimized-raw" } */
+
+#define DECLS(n,VOL)			\
+__attribute__((noinline,noclone))	\
+int f##n(int A,int B){			\
+    VOL int C = A & ~B;			\
+    VOL int D = A ^ B;			\
+    return C | D;			\
+}					\
+__attribute__((noinline,noclone))	\
+int g##n(int A,int B){			\
+    VOL int C = A & ~B;			\
+    return C ^ ~A;			\
+}					\
+__attribute__((noinline,noclone))	\
+int h##n(int A,int B){			\
+    VOL int C = A | B;			\
+    VOL int D = A ^ B;			\
+    return C & ~D;			\
+}					\
+__attribute__((noinline,noclone))	\
+int i##n(int A,int B){			\
+    VOL int C = A ^ B;			\
+    return A | ~C;			\
+}					\
+__attribute__((noinline,noclone))	\
+int J##n(int A,int B){			\
+    VOL int C = A | B;			\
+    VOL int D = A & B;			\
+    return C | D;			\
+}					\
+__attribute__((noinline,noclone))	\
+int k##n(int A,int B){			\
+    VOL int C = A & B;			\
+    VOL int D = A ^ B;			\
+    return C | ~D;			\
+}					\
+__attribute__((noinline,noclone))	\
+int l##n(int A,int B){			\
+    VOL int C = A & ~B;			\
+    return ~C;				\
+}					\
+__attribute__((noinline,noclone))	\
+int m##n(int A,int B){			\
+    VOL int C = A & B;			\
+    VOL int D = A ^ B;			\
+    return C ^ D;			\
+}
+
+DECLS(0,)
+DECLS(1,volatile)
+
+int main(){
+    for(int A = 0; A <= 1; ++A)
+      for(int B = 0; B <= 1; ++B)
+	{
+	  if (f0 (A, B) != f1 (A, B)) __builtin_abort();
+	  if (g0 (A, B) != g1 (A, B)) __builtin_abort();
+	  if (h0 (A, B) != h1 (A, B)) __builtin_abort();
+	  if (i0 (A, B) != i1 (A, B)) __builtin_abort();
+	  if (J0 (A, B) != J1 (A, B)) __builtin_abort();
+	  if (k0 (A, B) != k1 (A, B)) __builtin_abort();
+	  if (l0 (A, B) != l1 (A, B)) __builtin_abort();
+	  if (m0 (A, B) != m1 (A, B)) __builtin_abort();
+	}
+}
+
+/* { dg-final { scan-tree-dump-times "bit_not_expr" 12 "optimized"} } */
+/* { dg-final { scan-tree-dump-times "bit_and_expr"  9 "optimized"} } */
+/* { dg-final { scan-tree-dump-times "bit_ior_expr" 10 "optimized"} } */
+/* { dg-final { scan-tree-dump-times "bit_xor_expr"  9 "optimized"} } */