masahi commented on pull request #9334:
URL: https://github.com/apache/tvm/pull/9334#issuecomment-948921743
> For removing FInferCorrectLayout, it looks like most of attrs are set to
ElemwiseArbitraryLayout, but some of the QNN ops are set to custom layout
methods
Oh yes, `InferLayout` functions for QNN ops are used when a user calls
`ConvertLayout` on a quantized model after the model is imported. So this is
very important.
On the other hand, the ops you removed `FTVMCompute` from in this PR are
not "user-facing" in the same sense that QNN ops are, they are only used by VM
during compilation and `ConvertLayout` pass will never see them. So it should
be safe to remove `FInferCorrectLayout` from them.
I didn't realize that QNN ops are marked `TNonComputational`, but they kind
of distinct from other `TNonComputational` ops in this sense.
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