1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/Wparentheses-2.C b/gcc/testsuite/g++.dg/warn/Wparentheses-2.C
new file mode 100644
index 000000000..286e2f97c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wparentheses-2.C
@@ -0,0 +1,43 @@
+// Test operation of -Wparentheses.  Warnings for assignments used as
+// truth-values shouldn't apply other than for plain assignment.
+// Essentially the same as gcc.dg/Wparentheses-10.c.
+// Origin: Joseph Myers <jsm@polyomino.org.uk>
+
+// { dg-do compile }
+// { dg-options "-Wparentheses" }
+
+int foo (int);
+
+int a, b, c;
+bool d;
+
+void
+bar (void)
+{
+  if (a += b)
+    foo (0);
+  if (a -= a)
+    foo (1);
+  if (b *= c)
+    foo (2);
+  else
+    foo (3);
+  if (b /= b)
+    foo (4);
+  else
+    foo (5);
+  while (c %= b)
+    foo (6);
+  while (c <<= c)
+    foo (7);
+  do foo (8); while (a >>= b);
+  do foo (9); while (a &= a);
+  for (;c ^= b;)
+    foo (10);
+  for (;c |= c;)
+    foo (11);
+  d = a += b;
+  foo (12);
+  d = a -= a;
+  foo (13);
+}