yincs-intellif opened a new pull request, #14398:
URL: https://github.com/apache/tvm/pull/14398

   During NPU schedule, we usually encounter multiple out graphs and need do 
loop partition on each out then compute at other block to the different out 
block. But current "compute_at" primitive can't handle it.
   
   This PR add "merge" schedule primitive to merge different loops, when cut 
same tiles on different out blocks by "split" primitive, we can merge these out 
block under an outer loop, then other blocks can "compute_at" this loop 
normally.
   
   cc @Hzfengsy @wrongtest-intellif


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