[PATCH] D106041: [WIP][SimpleLoopUnswitch] Re-fix introduction of UB when hoisted condition may be undef or poison

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Much like with pushing freeze within simplifycfg, doing that in loopunswitch seems misplaced.
It's impossible to tell without a phase-ordering test (one with `-O3`, not just a single pass),
but perhaps we simply need to run/move instcombine invocation somewhere in the pipeline?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D106041/new/

https://reviews.llvm.org/D106041