[PATCH] D102398: [RISCV] Optimize or/xor with immediate

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

Can this be moved into `RISCVTargetLowering::targetShrinkDemandedConstant`? aarch64 has a great `optimizeLogicalImm` which may give some inspiration.


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  https://reviews.llvm.org/D102398/new/

https://reviews.llvm.org/D102398