[all-commits] [llvm/llvm-project] 7f5b3f: [X86][SSE] Add X86ISD::FRCP handling to isNegatibl...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 7f5b3fa73c39be2491a74283080a35b7140972d3
      https://github.com/llvm/llvm-project/commit/7f5b3fa73c39be2491a74283080a35b7140972d3
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-02-08 (Sat, 08 Feb 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/fma-fneg-combine-2.ll

  Log Message:
  -----------
  [X86][SSE] Add X86ISD::FRCP handling to isNegatibleForFree

Peek through X86ISD::FRCP nodes to see if there is a negatible input.