FrozenGene commented on pull request #5754:
URL: https://github.com/apache/incubator-tvm/pull/5754#issuecomment-642690898


   > Hi @FrozenGene ,
   > I agree that different strategies should be available to the auto-tuner. 
See if the solution proposed is good enough for you (at least as a temporary 
work-around). For Armv7-A or NCHW, nothing changes, we follow exactly the 
previous path.
   > 
   > For Armv8-A and NHWC we don't convert during the legalization step, but 
during the `_alter_conv2d_layout` pass. The only difference now is that the 
offset contribution will be added after the convolution instead than before.
   > 
   > I agree that a better solution, where the legalization changes depending 
on the strategy, would be better. However, I don't think the legalization step 
has got enough information to know the strategy (for now).
   > 
   > What do you think?
   
   I think it is ok.


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