With ms_struct attribut, Zero-length bitfields following

non-bitfield members are ignore. // rdar://8823265 wip

llvm-svn: 130257

1 files changed, 123 insertions, 0 deletions

diff --git a/clang/test/CodeGen/ms_struct-bitfield.c b/clang/test/CodeGen/ms_struct-bitfield.c
new file mode 100644
index 00000000000..e9bd1d3f31d
--- /dev/null
+++ b/clang/test/CodeGen/ms_struct-bitfield.c
@@ -0,0 +1,123 @@
+// RUN: %clang_cc1 -emit-llvm-only  -triple x86_64-apple-darwin9 %s
+// rdar://8823265
+
+#define ATTR __attribute__((__ms_struct__))
+
+struct
+{
+   char foo;
+   long : 0;
+   char bar;
+} ATTR t1;
+
+struct
+{
+   char foo;
+   long : 0;
+   char : 0;
+   int : 0;
+   char bar;
+} ATTR t2;
+
+struct
+{
+   char foo;
+   long : 0;
+   char : 0;
+   int : 0;
+   char bar;
+   long : 0;
+   char : 0;
+} ATTR t3;
+
+struct
+{
+   long : 0;
+   char bar;
+} ATTR t4;
+
+struct
+{
+   long : 0;
+   long : 0;
+   char : 0;
+   char bar;
+} ATTR t5;
+
+struct
+{
+   long : 0;
+   long : 0;
+   char : 0;
+   char bar;
+} ATTR t6;
+
+struct
+{
+   char foo;
+   long : 0;
+   int : 0;
+   char bar;
+   char bar1;
+   long : 0;
+   char bar2;
+   char bar3;
+   char : 0;
+   char bar4;
+   char bar5;
+   char : 0;
+   char bar6;
+   char bar7;
+} ATTR t7;
+
+struct
+{
+   long : 0;
+   long : 0;
+   char : 0;
+} ATTR t8;
+
+struct
+{
+   char foo;
+   long : 0;
+   int : 0;
+   char bar;
+   char bar1;
+   long : 0;
+   char bar2;
+   char bar3;
+   char : 0;
+   char bar4;
+   char bar5;
+   char : 0;
+   char bar6;
+   char bar7;
+   int  i1;
+   char : 0;
+   long : 0;
+   char :4;
+   char bar8;
+   char : 0;
+   char bar9;
+   char bar10;
+   int  i2;
+   char : 0;
+   long : 0;
+   char :4;
+} ATTR t9;
+
+static int arr1[(sizeof(t1) == 2) -1];
+static int arr2[(sizeof(t2) == 2) -1];
+static int arr3[(sizeof(t3) == 2) -1];
+static int arr4[(sizeof(t4) == 1) -1];
+static int arr5[(sizeof(t5) == 1) -1];
+static int arr6[(sizeof(t6) == 1) -1];
+static int arr7[(sizeof(t7) == 9) -1];
+static int arr8[(sizeof(t8) == 0) -1];
+static int arr9[(sizeof(t9) == 28) -1];
+
+int main() {
+  return 0;
+}
+