[PATCH] D155328: [RISCV] Add a DAG combine for (czero_eq X, (xor Y, 1)) -> (czero_ne X, Y) if Y is 0 or 1.

[Craig Topper via Phabricator via llvm-commits]

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This is an alternative to D155288 <https://reviews.llvm.org/D155288> that can handle other sources of
xori like FP compares. Unfortunately, it misses the i64 setge case
on RV32 in condops.ll.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D155328

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/condops.ll

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