Makes A Microsoft Layout CodeGen Test Explicit

This patch tests introduces a proper codegen test in place of the 
"codegen no longer crashes" test introduced in r193664. The test is also 
moved from layout to CodeGenCXX.

Differential Revision: http://llvm-reviews.chandlerc.com/D2174

llvm-svn: 194739

1 files changed, 10 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/microsoft-abi-alignment-fail.cpp b/clang/test/CodeGenCXX/microsoft-abi-alignment-fail.cpp
new file mode 100644
index 00000000000..7407efed2f9
--- /dev/null
+++ b/clang/test/CodeGenCXX/microsoft-abi-alignment-fail.cpp
@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 -fno-rtti -emit-llvm -cxx-abi microsoft -triple=i686-pc-win32 -o - %s  2>/dev/null | FileCheck %s
+// RUN: %clang_cc1 -fno-rtti -emit-llvm -cxx-abi microsoft -triple=x86_64-pc-win32 -o - %s  2>/dev/null | FileCheck %s -check-prefix CHECK-X64
+
+struct B { char a; };
+struct A : virtual B {} a;
+
+// The <> indicate that the pointer is packed, which is required to support
+// microsoft layout in 32 bit mode, but not 64 bit mode.
+// CHECK: %struct.A = type <{ i32*, %struct.B }>

+// CHECK-X64: %struct.A = type { i32*, %struct.B }