message: Use %% for inline assembly rather than % so this compiles with clang.
  Same as but for this file too.
diff: @@ -64,7 +64,7 @@ namespace cv { namespace cuda { namespace device
  static __device__ __forceinline__ unsigned int laneId()
  {
  unsigned int ret;
  - asm("mov.u32 %0, %laneid;" : "=r"(ret) );
  + asm("mov.u32 %0, %%laneid;" : "=r"(ret) );
  return ret;
  }
  