[PATCH] D89392: [GlobalISel] Fold unary opcodes in CSEMIRBuilder

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

In D89392#2330153 <https://reviews.llvm.org/D89392#2330153>, @gargaroff wrote:

> Is there anything I need to do to use the CSEMIRBuilder?

I think it's enabled by default for some passes, unless you override TargetPassConfig::isGISelCSEEnabled to return false, and enabled in the combiner only if you pass some CSEInfo into combineMachineInstrs, which no in-tree targets do.


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https://reviews.llvm.org/D89392