merrymercy edited a comment on pull request #6750:
URL: https://github.com/apache/incubator-tvm/pull/6750#issuecomment-716930809
The code looks good to me. But the naming is not intuitive. For example, the
"RewriteWithPlaceholder" option in your code actually accept "PreTransposed"
tensors.
The key difference between the two options is whether adding new stages. We
can make the names much clearer as follows.
```c++
/*!
* \brief Options for applying layout rewrite.
* This is an optimization to rewrite the layout of input tensors according
to the schedule we get.
*/
enum class LayoutRewriteOption : int {
/*! \brief Do not process layout rewrite. */
NoRewrite = 0,
/*! \brief Insert layout transformation stages for input placeholders in
the compute DAG */
AddTransformStage = 1,
/*!
* \brief Do not insert layout transform stages and assume the input
placeholders
* are pre-transformed.
* \note The lowered function with this option does not accept the origial
input shapes,
* so this option must be used along with a layout conversion pass in
Relay.
*/
RewriteForPreTransformed = 2,
};
```
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