diff --git a/clang/test/CodeGen/mingw-long-double-size.c b/clang/test/CodeGen/mingw-long-double.c
similarity index 70%
rename from clang/test/CodeGen/mingw-long-double-size.c
rename to clang/test/CodeGen/mingw-long-double.c
index dd1ffcb5ed8d..a29662c8e7db 100644
--- a/clang/test/CodeGen/mingw-long-double-size.c
+++ b/clang/test/CodeGen/mingw-long-double.c
@@ -1,6 +1,12 @@
 // REQUIRES: x86-registered-target
 // RUN: %clang_cc1 -triple i686-pc-windows-gnu -S %s  -o - | FileCheck %s -check-prefix=CHECK_I686
-// CHECK_I686: lda,12
+// CHECK_I686: _lda,12
+// CHECK_I686: _lds,16
 // RUN: %clang_cc1 -triple x86_64-pc-windows-gnu -S %s  -o - | FileCheck %s -check-prefix=CHECK_X86_64
 // CHECK_X86_64: lda,16
+// CHECK_X86_64: lds,32
 long double lda;
+struct {
+  char c;
+  long double ldb;
+} lds;