[PATCH] D128583: CodeGen: Remove AliasAnalysis from regalloc

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D128583#3612915 <https://reviews.llvm.org/D128583#3612915>, @MatzeB wrote:

> Do you think that there is a risk of target-specific ISel or optimiziation not setting the flags properly in this new scheme? Though even if there is risk, I'd rather push this forward this is too nice a cleanup to block it ;-)

Yes, this could potentially regress rematerializing instructions from target load intrinsics. We would have to pass AA through getTgtMemIntrinsic to allow targets to set the flag themselves.


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  https://reviews.llvm.org/D128583/new/

https://reviews.llvm.org/D128583