[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.

In D119965#3423713 <https://reviews.llvm.org/D119965#3423713>, @lebedev.ri wrote:

> If this is really as simple as all the incoming values being identical instructions with identical arguments, then it seems like a simple extension of the `InstCombinerImpl::foldPHIArgOpIntoPHI()`

foldPHIArgOpIntoPHI requires all operands are used by PHI only. In our case or instruction in BB3 has other users.


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https://reviews.llvm.org/D119965