merrymercy opened a new pull request #6190:
URL: https://github.com/apache/incubator-tvm/pull/6190


   For the full upstream plan, see [Ansor 
RFC](https://discuss.tvm.ai/t/rfc-ansor-an-auto-scheduler-for-tvm-autotvm-v2-0/7005/32).
   
   This PR adds feature extraction for the cost models.
   It is similar to the existing feature extraction in autotvm but
   1. Use a general format for all loop structures, so all workloads can share 
a same cost model.
   2. Includes more analysis results (e.g., reuse distance) into the feature 
vector.
   
   


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