1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ext/builtin11.C b/gcc/testsuite/g++.dg/ext/builtin11.C
new file mode 100644
index 000000000..2749671fb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/builtin11.C
@@ -0,0 +1,9 @@
+// PR c++/40138
+// { dg-options "-Wall" }
+
+void foo(int i, ...)
+{
+  V v;				// { dg-error "not declared|expected" }
+  __builtin_va_start(v, i);	// { dg-error "not declared" }
+  i = __builtin_va_arg(v, int);
+}