[all-commits] [llvm/llvm-project] 63e338: [X86][SSE] Show isNegatibleForFree inability to pe...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 63e338be2cc6a4ab7a95ca7cf264928d41778ff4
      https://github.com/llvm/llvm-project/commit/63e338be2cc6a4ab7a95ca7cf264928d41778ff4
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-02-08 (Sat, 08 Feb 2020)

  Changed paths:
    M llvm/test/CodeGen/X86/fma-fneg-combine-2.ll

  Log Message:
  -----------
  [X86][SSE] Show isNegatibleForFree inability to peek through X86ISD::FRCP

We can safely negate the input of RCP but we can't peek through it.