tlopex commented on PR #20057:
URL: https://github.com/apache/tvm/pull/20057#issuecomment-5431007823

   Thanks for the update. One issue remains: 
`_get_spatial_domains_in_access_order` uses `info.dom`, but `_normalize` uses 
`split_expr.extent` when `lower_factor > 1`.
   
   e.g. with spatial shape `(2, 3, 8)` and access `A[n, y, k, x // 2]`, the 
guard chooses `tx=8`, while the normalized innermost extent is `4`. `bind` 
still raises `ScheduleError`, aborting the fallback chain.
   
   Please base the guard and thread extent on the normalized effective extent 
and add a regression test for this case.


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