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-rw-r--r--lib/CodeGen/CGBlocks.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/CGBlocks.cpp b/lib/CodeGen/CGBlocks.cpp
index e33e664430..84d8808bb3 100644
--- a/lib/CodeGen/CGBlocks.cpp
+++ b/lib/CodeGen/CGBlocks.cpp
@@ -1566,6 +1566,8 @@ public:
llvm::ConstantPointerNull::get(cast<llvm::PointerType>(value->getType()));
if (CGF.CGM.getCodeGenOpts().OptimizationLevel == 0) {
+ llvm::StoreInst *store = CGF.Builder.CreateStore(null, destField);
+ store->setAlignment(Alignment.getQuantity());
CGF.EmitARCStoreStrongCall(destField, value, /*ignored*/ true);
CGF.EmitARCStoreStrongCall(srcField, null, /*ignored*/ true);
return;