[SIMT] [cuda] Use correct source lane offset for warp intrinsics #4734
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qiao-bo
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Related issue = #4631
For warp size of 32, correct lane offset is 0 for
shfl_up*and 31 forshfl_down*.ref https://docs.nvidia.com/cuda/parallel-thread-execution/index.html#data-movement-and-conversion-instructions-shfl-sync