[PATCH] D90901: [X86] Don't fold (fneg (fma (fneg X), Y, (fneg Z))) to (fma X, Y, Z)

[Jim Lin via Phabricator via llvm-commits]

Jim updated this revision to Diff 346618.
Jim added a comment.

Rebase and update testcases.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D90901/new/

https://reviews.llvm.org/D90901

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/avx2-fma-fneg-combine.ll
  llvm/test/CodeGen/X86/fma-fneg-combine.ll
  llvm/test/CodeGen/X86/fma-signed-zero.ll
  llvm/test/CodeGen/X86/fma_patterns.ll
  llvm/test/CodeGen/X86/fma_patterns_wide.ll

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