And a test case for my previous patch.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61044 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGenObjC/bitfield-1.m

@@ -0,0 +1,79 @@
+// RUN: clang -emit-llvm -o %t %s
+
+@interface Object
+- (id) alloc;
+- (id) init;
+@end
+
+extern void abort(void);
+
+#define CHECK_IF(expr) if(!(expr)) abort();
+
+@interface Base: Object 
+{
+    int full;
+    int full2: 32;
+    int _refs: 8;
+    int field2: 3;
+    unsigned f3: 8;
+    short cc;
+    unsigned g: 16;
+    int r2: 8;
+    int r3: 8;
+    int r4: 2;
+    int r5: 8;
+    char c;
+}
+- (void)setValues;
+@end
+
+@interface Derived: Base
+{
+    char d;
+    int _field3: 6;
+}
+- (void)checkValues;
+@end
+
+@implementation Base
+-(void)setValues {
+  full = 1;
+  full2 = 2;
+  _refs = 3;
+  field2 = 1;
+  f3 = 6;
+  cc = 7;
+  g = 8;
+  r2 = 9;
+  r3 = 10;
+  r4 = 1;
+  r5 = 12;
+  c = 13;
+}
+@end
+
+@implementation Derived
+-(void)checkValues {
+  CHECK_IF(full == 1);
+  CHECK_IF(full2 == 2);
+  CHECK_IF(_refs == 3);
+  CHECK_IF(field2 == 1);
+  CHECK_IF(f3 == 6);
+  CHECK_IF(cc == 7);
+  CHECK_IF(g == 8);
+  CHECK_IF(r2 == 9);
+  CHECK_IF(r3 == 10);
+  CHECK_IF(r4 == 1);
+  CHECK_IF(r5 == 12);
+  CHECK_IF(c == 13);
+}
+@end
+
+int main(void) {
+  Derived *obj = [[Derived alloc] init];
+
+  [obj setValues];
+  [obj checkValues];
+
+  return 0;
+}