[PATCH] D76585: [PowerPC] Require NSZ flag for c-a*b to FNMSUB

[Qiu Chaofan via Phabricator via llvm-commits]

qiucf updated this revision to Diff 257233.
qiucf added a comment.

Rebase after the `getNegatibleCost` refactoring patch: D77319 <https://reviews.llvm.org/D77319>


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76585/new/

https://reviews.llvm.org/D76585

Files:
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.h
  llvm/lib/Target/PowerPC/PPCInstrInfo.td
  llvm/lib/Target/PowerPC/PPCInstrVSX.td
  llvm/test/CodeGen/PowerPC/combine-fneg.ll
  llvm/test/CodeGen/PowerPC/fma-assoc.ll
  llvm/test/CodeGen/PowerPC/fma-ext.ll
  llvm/test/CodeGen/PowerPC/fma-negate.ll
  llvm/test/CodeGen/PowerPC/fma.ll
  llvm/test/CodeGen/PowerPC/repeated-fp-divisors.ll

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