1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wall.c b/gcc/testsuite/gcc.dg/Wall.c
new file mode 100644
index 000000000..898484717
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wall.c
@@ -0,0 +1,9 @@
+/* PR 30437: Test -Wall 
+   Don't change this without changing Wno-all.c as well.  */
+/* { dg-do compile } */
+/* { dg-options "-Wall" } */
+
+void foo(int a)
+{
+  5 * (a == 1) | (a == 2);  /* { dg-warning "no effect" "no effect" } */
+}