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-rw-r--r--lib/CodeGen/CGObjCMac.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index 43b347ce353f0..70d24b7913342 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -886,7 +886,7 @@ protected:
/// Cached reference to the class for constant strings. This value has type
/// int * but is actually an Obj-C class pointer.
- llvm::WeakVH ConstantStringClassRef;
+ llvm::WeakTrackingVH ConstantStringClassRef;
/// \brief The LLVM type corresponding to NSConstantString.
llvm::StructType *NSConstantStringType = nullptr;