add support for codegening CXXZeroInitValueExprs

llvm-svn: 84418
diff --git a/clang/lib/CodeGen/CGExprAgg.cpp b/clang/lib/CodeGen/CGExprAgg.cpp
index 01f7193..88fdb54 100644
--- a/clang/lib/CodeGen/CGExprAgg.cpp
+++ b/clang/lib/CodeGen/CGExprAgg.cpp
@@ -112,6 +112,7 @@
   void VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E);
   void VisitCXXConstructExpr(const CXXConstructExpr *E);
   void VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E);
+  void VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *E);
 
   void VisitVAArgExpr(VAArgExpr *E);
 
@@ -439,6 +440,11 @@
   CGF.EmitCXXExprWithTemporaries(E, DestPtr, VolatileDest, IsInitializer);
 }
 
+void AggExprEmitter::VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *E) {
+  LValue lvalue = LValue::MakeAddr(DestPtr, Qualifiers());
+  EmitNullInitializationToLValue(lvalue, E->getType());
+}
+
 void AggExprEmitter::EmitInitializationToLValue(Expr* E, LValue LV) {
   // FIXME: Ignore result?
   // FIXME: Are initializers affected by volatile?