[PATCH] D149365: [SimplifyCFG] Improve the way hoisting skips over non-matching instructions

[Jay Foad via Phabricator via llvm-commits]

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D129370 <https://reviews.llvm.org/D129370> introduced the idea that hoisting could skip over non-matching
instructions and continue to look for matching (hoistable) instructions,
but certain types of mismatch still aborted the whole hoisting attempt.

Fix this by splitting out some of the instruction matching checks into a
helper function.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149365

Files:
  llvm/lib/Transforms/Utils/SimplifyCFG.cpp
  llvm/test/Transforms/SimplifyCFG/convergent.ll
  llvm/test/Transforms/SimplifyCFG/hoist-common-skip.ll

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