Code gen. for ivar references; including bitfield
ivars.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61043 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index 201f53e..33dfff1 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -1328,9 +1328,12 @@
   for (ObjCInterfaceDecl::ivar_iterator 
          i = ID->getClassInterface()->ivar_begin(),
          e = ID->getClassInterface()->ivar_end(); i != e; ++i) {
-    ObjCIvarDecl *V = *i;
+    const ObjCIvarDecl *V = *i;
+    ObjCInterfaceDecl *OID = 
+      const_cast<ObjCInterfaceDecl *>(ID->getClassInterface());
+    FieldDecl *Field = OID->lookupFieldDeclForIvar(CGM.getContext(), V);
     unsigned Offset = 
-      Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(V));
+      Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(Field));
     std::string TypeStr;
     Ivar[0] = GetMethodVarName(V->getIdentifier());
     CGM.getContext().getObjCEncodingForType(V->getType(), TypeStr, true);