yzh119 commented on PR #14161:
URL: https://github.com/apache/tvm/pull/14161#issuecomment-1452342966

   Thank you @quic-sanirudh , currently we have these checks:
   1. whether the access region is a single point
   2. whether the set of block itervars appeared in lhs and rhs of cache stage 
matches.
   3. (TODO) whether there is only one consumer block
   
   There are some other checks that I can add:
   1. Whether we can guarantee the indices to access cache buffer >= 0
   2. Whether the user provided index map is bijective (I notice that 
https://github.com/apache/tvm/pull/14095 is relaxing this checks, so I doubt if 
it is necessary).
   
   


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