[TIR] Update SplitHostDevice to post-process with ConvertSSA #14496
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Prior to this commit, the same
tir::Var
could be defined both in the body of the host function and in a parameters of the device function. While this is legal, as TIR only requires SSA across eachPrimFunc
, this does result in failure to round-trip through TVMScript, because the round-tripped TIR uses a newtir::Var
in each instance. This PR adds aConvertSSA()
transform that can apply to an entireIRModule
, in addition to the existingConvertSSA(Stmt)
utility.This is part of changes described in #14486, to improve round-trip failures that occur in lowering.