[PATCH] D143201: DAG: Lower single infinity is.fpclass tests to fcmp

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
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InstCombine also should have taken care of this, but this
should be helpful when the fcmp based lowering strategy tries
to combine multiple tests.


https://reviews.llvm.org/D143201

Files:
  llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
  llvm/test/CodeGen/X86/is_fpclass-fp80.ll
  llvm/test/CodeGen/X86/is_fpclass.ll

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