Implement Obj-C ivar references to aggregates.

Implement Obj-C lvalue message sends (aggregate returns).

Update several places to emit more precise ErrorUnsupported warnings
  for currently unimplemented Obj-C features (main missing chunks are
  property references, Obj-C exception handling, and the for ... in
  syntax).

llvm-svn: 55234

1 files changed, 7 insertions, 1 deletions

diff --git a/clang/lib/CodeGen/CGExprAgg.cpp b/clang/lib/CodeGen/CGExprAgg.cpp
index bc6af1251e5..fbba9c6c0c4 100644
--- a/clang/lib/CodeGen/CGExprAgg.cpp
+++ b/clang/lib/CodeGen/CGExprAgg.cpp
@@ -88,7 +88,13 @@ public:
   void VisitBinComma(const BinaryOperator *E);
 
   void VisitObjCMessageExpr(ObjCMessageExpr *E);
-
+  void VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
+    EmitAggLoadOfLValue(E);
+  }
+  void VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
+    // FIXME: Implement!
+    CGF.ErrorUnsupported(E, "aggregate expression (Objective-C property reference)");
+  }
   
   void VisitConditionalOperator(const ConditionalOperator *CO);
   void VisitInitListExpr(InitListExpr *E);