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-rw-r--r--clang/test/CodeGenCUDA/Inputs/cuda.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/test/CodeGenCUDA/Inputs/cuda.h b/clang/test/CodeGenCUDA/Inputs/cuda.h
index a9a4595a14a..9b9f43a1aaa 100644
--- a/clang/test/CodeGenCUDA/Inputs/cuda.h
+++ b/clang/test/CodeGenCUDA/Inputs/cuda.h
@@ -18,3 +18,5 @@ typedef struct cudaStream *cudaStream_t;
int cudaConfigureCall(dim3 gridSize, dim3 blockSize, size_t sharedSize = 0,
cudaStream_t stream = 0);
+
+extern "C" __device__ int printf(const char*, ...);
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