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-rw-r--r--clang/lib/CodeGen/CGCUDANV.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CGCUDANV.cpp b/clang/lib/CodeGen/CGCUDANV.cpp
index d76076326e4..1c578bd151b 100644
--- a/clang/lib/CodeGen/CGCUDANV.cpp
+++ b/clang/lib/CodeGen/CGCUDANV.cpp
@@ -520,7 +520,7 @@ llvm::Function *CGNVCUDARuntime::makeModuleCtorFunction() {
// Generate a unique module ID.
SmallString<64> ModuleID;
llvm::raw_svector_ostream OS(ModuleID);
- OS << ModuleIDPrefix << llvm::format("%x", FatbinWrapper->getGUID());
+ OS << ModuleIDPrefix << llvm::format("%" PRIx64, FatbinWrapper->getGUID());
llvm::Constant *ModuleIDConstant =
makeConstantString(ModuleID.str(), "", ModuleIDSectionName, 32);
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