Get rid of bogus warnings when the second argument in va_start is either an implicit cast expr or a paren expr.

llvm-svn: 46950

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/test/Sema/varargs.c b/clang/test/Sema/varargs.c
index 92faf9ff50b..f52921c5fca 100644
--- a/clang/test/Sema/varargs.c
+++ b/clang/test/Sema/varargs.c
@@ -16,3 +16,11 @@ void f2(int a, int b, ...)
     __builtin_va_start(ap, a); // expected-warning {{second parameter of 'va_start' not last named argument}}
     __builtin_va_start(ap, b);
 }
+
+void f3(float a, ...)
+{
+    __builtin_va_list ap;
+    
+    __builtin_va_start(ap, a);
+    __builtin_va_start(ap, (a));
+}