[GitHub] [tvm] masahi commented on pull request #12415: [TOPI][Hexagon] Test case to reproduce buffer store bug

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masahi commented on PR #12415:
URL: https://github.com/apache/tvm/pull/12415#issuecomment-1217418265

   ok I was able to reproduce this. As expected, `Simplify` at https://github.com/apache/tvm/blob/main/src/te/operation/create_primfunc.cc#L234 is commuting inputs. This seems like a bug to me, especially given that `layout_transform` and `cache_read` etc depends on the order of buffers. cc @vinx13 @junrushao1994 
   
   ```
   [03:26:49] /home/masa/projects/dev/tvm/src/te/operation/create_primfunc.cc:234: compute body                                                           
   [03:26:49] /home/masa/projects/dev/tvm/src/te/operation/create_primfunc.cc:235: uint8(max(0, min(tir.shift_right((((int32(A[n, h, w, c])*17348) + (int3
   2(B[n, h, w, 0])*17359)) + -2360824), 14), 255)))                                                                                                      
   [03:26:49] /home/masa/projects/dev/tvm/src/te/operation/create_primfunc.cc:237: simplified                                                             
   [03:26:49] /home/masa/projects/dev/tvm/src/te/operation/create_primfunc.cc:238: uint8(max(0, min(tir.shift_right((((int32(B[n, h, w, 0])*17359) + (int3
   2(A[n, h, w, c])*17348)) - 2360824), 14), 255)))
   ```


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