[PATCH] D140326: DAG: Use getNegatedExpression in combineMinNumMaxNum

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: bogner, spatel, bkramer, RKSimon, greened, foad.
Herald added subscribers: ecnelises, hiraditya.
Herald added a project: All.
arsenm requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

Computing the negated RHS expression just to see if it compares equal
and throw it away feels dirty.


https://reviews.llvm.org/D140326

Files:
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/ARM/unsafe-fneg-select-minnum-maxnum-combine.ll

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