[PATCH] D119965: [LICM][PhaseOrder] Don't speculate in LICM until after running loop rotate

[Guozhi Wei via Phabricator via llvm-commits]

Carrot added a comment.

I added another GVNHoist pass after loop optimizations, then the two "or" instructions are replaced by one "or" instruction and hoisted into PreHeader2, and finally instructions in LoopExit2 got vectorized by SLPVectorizer.

Any comments on this method?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D119965/new/

https://reviews.llvm.org/D119965