[PATCH] D147137: Extend handlng of fp min/max.

[Serguei Katkov via Phabricator via llvm-commits]

skatkov created this revision.
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Add support the cases like

  m(m(X,Y),m'(X,Y)) => m(X,Y)

where m is one of maxnum, minnum, maximum, minimum and m' is m or inverse of m.


https://reviews.llvm.org/D147137

Files:
  llvm/lib/Analysis/InstructionSimplify.cpp
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/test/Transforms/InstSimplify/fminmax-folds.ll

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