--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/c-c++-common/Wlogical-not-parentheses-1.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,26 @@
+/* PR c/77292 */
+/* { dg-do compile } */
+/* { dg-options "-Wlogical-not-parentheses" } */
+
+ /* Test that we don't warn if rhs is a comparison or a logical op.  */
+
+int
+foo (int a, int b)
+{
+  int r = 0;
+  r += !a == (a < b);
+  r += !a == (a > b);
+  r += !a == (a >= b);
+  r += !a == (a <= b);
+  r += !a == (a != b);
+  r += !a == (a == b);
+  r += !a == (a || b);
+  r += !a == (a && b);
+  r += !a == (!b);
+
+  r += !a == (a ^ b); /* { dg-warning "logical not is only applied to the left hand side of comparison" } */
+  r += !a == (a | b); /* { dg-warning "logical not is only applied to the left hand side of comparison" } */
+  r += !a == (a & b); /* { dg-warning "logical not is only applied to the left hand side of comparison" } */
+
+  return r;
+}