message: Use %% for inline assembly rather than % so this compiles with clang.
diff: @@ -64,7 +64,7 @@ struct Warp
  __device__ __forceinline__ static uint laneId()
  {
  uint ret;
  - asm("mov.u32 %0, %laneid;" : "=r"(ret));
  + asm("mov.u32 %0, %%laneid;" : "=r"(ret));
  return ret;
  }
  