1 files changed, 2 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CGBlocks.cpp b/clang/lib/CodeGen/CGBlocks.cpp
index 1a6904976fb..4e57e6cd954 100644
--- a/clang/lib/CodeGen/CGBlocks.cpp
+++ b/clang/lib/CodeGen/CGBlocks.cpp
@@ -929,7 +929,8 @@ llvm::Value *CodeGenFunction::EmitBlockLiteral(const CGBlockInfo &blockInfo) {
             AggValueSlot::forAddr(blockField, Qualifiers(),
                                   AggValueSlot::IsDestructed,
                                   AggValueSlot::DoesNotNeedGCBarriers,
-                                  AggValueSlot::IsNotAliased);
+                                  AggValueSlot::IsNotAliased,
+                                  AggValueSlot::DoesNotOverlap);
         EmitAggExpr(copyExpr, Slot);
       } else {
         EmitSynthesizedCXXCopyCtor(blockField, src, copyExpr);