[PATCH] D117210: [CodeGen] Support folds of not(cmp(cc, ...)) -> cmp(!cc, ...) for scalable vectors

[David Sherwood via Phabricator via llvm-commits]

david-arm created this revision.
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I have updated TargetLowering::isConstTrueVal to also consider
SPLAT_VECTOR nodes with constant integer operands. This allows the
optimisation to also work for targets that support scalable vectors.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117210

Files:
  llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
  llvm/test/CodeGen/AArch64/sve-cmp-folds.ll
  llvm/test/CodeGen/RISCV/rvv/cmp-folds.ll

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