[PATCH] D93853: [CodeGen] recognize select form of and/ors when splitting branch conditions

[Juneyoung Lee via Phabricator via llvm-commits]

aqjune added a comment.

I'm slightly worried that it will still preserve unsound IR-level transformation (because CodeGenPrepare is in IR). :( A bug in CodeGenPrepare will be hard to discover because opt -O<n> won't use it.
If DAGCombiner does that, would it be still okay in terms of performance? I see that SelectionDAGISel::CodeGenAndEmitDAG invokes CurDAG->Combine first.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D93853/new/

https://reviews.llvm.org/D93853