1 files changed, 22 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/20020104-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/20020104-1.c
new file mode 100644
index 000000000..be36a7427
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/20020104-1.c
@@ -0,0 +1,22 @@
+/* Test whether statement with no effect warnings are not given for last
+   statements inside of statement expression.  */
+/* { dg-do compile } */
+/* { dg-options "-O -Wall" } */
+
+void bar (char *p, char *q);
+
+int main()
+{
+  char foo [32], *p;
+
+  ({
+    void *s = (foo);
+    __builtin_memset (s, '\0', sizeof (foo));
+    s; /* { dg-warning "no effect" "statement with no effect warning" } */
+    s; /* { dg-bogus "no effect" "bogus statement with no effect warning" } */
+  });
+  p = foo;
+  p;   /* { dg-warning "no effect" "statement with no effect warning" } */
+  bar (foo, p);
+  return 0;
+}