Re-land the fix for PR7139.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104446 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGClass.cpp b/lib/CodeGen/CGClass.cpp
index 82c7228..587a68b 100644
--- a/lib/CodeGen/CGClass.cpp
+++ b/lib/CodeGen/CGClass.cpp
@@ -465,7 +465,7 @@
/*IsInitializer=*/true);
CGF.EmitStoreThroughLValue(RHS, LHS, FieldType);
} else if (FieldType->isArrayType() && !MemberInit->getInit()) {
- CGF.EmitMemSetToZero(LHS.getAddress(), Field->getType());
+ CGF.EmitNullInitialization(LHS.getAddress(), Field->getType());
} else if (!CGF.hasAggregateLLVMType(Field->getType())) {
RHS = RValue::get(CGF.EmitScalarExpr(MemberInit->getInit(), true));
CGF.EmitStoreThroughLValue(RHS, LHS, FieldType);