[PATCH] D119916: Add a machine function pass to convert binop(phi(constants), v) to phi(binop)

[Guozhi Wei via Phabricator via llvm-commits]

Carrot added a comment.

Hi Quentin, thank you for your help! This optimization is still relevant to us.

This optimization calls target function FoldImmediate, it is also called by peephole optimization. X86 didn't implement it previously. After adding this function, it impacts peephole at the same time, some of them are regressions, so I changed peephole to avoid them.


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https://reviews.llvm.org/D119916