Make -mms-bitfields behave consistently.

Patch by Jeremiah Zanin.

llvm-svn: 165849

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/test/Sema/mms-bitfields.c b/clang/test/Sema/mms-bitfields.c
new file mode 100644
index 00000000000..9289b9029a1
--- /dev/null
+++ b/clang/test/Sema/mms-bitfields.c
@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -mms-bitfields -fsyntax-only -verify -triple x86_64-apple-darwin9 %s
+
+// The -mms-bitfields commandline parameter should behave the same
+// as the ms_struct attribute.
+struct
+{
+   int a : 1;
+   short b : 1;
+} t;
+
+// MS pads out bitfields between different types.
+static int arr[(sizeof(t) == 8) ? 1 : -1];