[PATCH] D67557: [DAG][X86] Convert isNegatibleForFree/GetNegatedExpression to a target hook (PR42863)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 220858.
RKSimon added a comment.

rebase


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67557/new/

https://reviews.llvm.org/D67557

Files:
  include/llvm/CodeGen/TargetLowering.h
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  lib/CodeGen/SelectionDAG/TargetLowering.cpp
  lib/Target/X86/X86ISelLowering.cpp
  lib/Target/X86/X86ISelLowering.h
  test/CodeGen/X86/recip-fastmath.ll
  test/CodeGen/X86/recip-fastmath2.ll

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