[PATCH] D152128: [RISCV] Fold special case (xor (setcc constant, y, setlt), 1) -> (setcc y, constant + 1, setlt)

Liao Chunyu via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Jun 5 02:38:38 PDT 2023


liaolucy updated this revision to Diff 528333.
liaolucy added a comment.

revert the last commit.

I tried to set the `related parent` but it always failed, gave up for now. 
I'll post next patch later. (Fold xor(setcc x, y, cond), 1 --> setcc (x, y, inverted(cond)))

I'm sorry to bother you all.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D152128/new/

https://reviews.llvm.org/D152128

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/double-select-icmp.ll
  llvm/test/CodeGen/RISCV/float-select-icmp.ll
  llvm/test/CodeGen/RISCV/half-select-icmp.ll

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