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-rw-r--r--clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp b/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
index f20489275b2..0e3aa61314e 100644
--- a/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
+++ b/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
@@ -222,7 +222,7 @@ public:
// PCH files don't have a signature field in the control block,
// but LLVM detects DWO CUs by looking for a non-zero DWO id.
- uint64_t Signature = Buffer->Signature ? Buffer->Signature : ~1UL;
+ uint64_t Signature = Buffer->Signature ? Buffer->Signature : ~1ULL;
Builder->getModuleDebugInfo()->setDwoId(Signature);
// Finalize the Builder.
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