[GitHub] [incubator-tvm] comaniac commented on pull request #5811: [AutoTVM][Fix] Fixed 'not in list' error for define_reorder with 'candidate' policy.

[GitBox <gi...@apache.org>]

comaniac commented on pull request #5811:
URL: https://github.com/apache/incubator-tvm/pull/5811#issuecomment-644317657


   > @comaniac A quick replication of the bug is to replace
   > https://github.com/apache/incubator-tvm/blob/520ca0a8b39aeb4765369f169477265230ea7c6c/tutorials/autotvm/tune_simple_template.py#L209
   > 
   > 
   > with
   > ```
   >     cfg.define_reorder('reorder', [yo, xo, k, yi, xi], policy='candidate', candidate=[[yo, xo, k, yi, xi], [xo, yo, k, yi, xi]])
   >     cfg['reorder'].apply(s, C, [yo, xo, k, yi, xi])
   > ```
   
   I see what you meant. It seems like all use cases in current TOPI reorder only the splitted axises, which are all virtual axises already. Accordingly, I'd suggest checking and creating `VirtualAxis` for `axes` in the beginning of `ReorderSpace.__init__`.


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