[PATCH] D144265: DAG: Handle lowering unordered compare with inf

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: jcranmer-intel, kpn, sepavloff, andrew.w.kaylor, spatel, RKSimon.
Herald added subscribers: StephenFan, pengfei, hiraditya, nemanjai.
Herald added a project: All.
arsenm requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

Try to take advantage of the nan check behavior of fcmp.


https://reviews.llvm.org/D144265

Files:
  llvm/include/llvm/CodeGen/CodeGenCommonISel.h
  llvm/lib/CodeGen/CodeGenCommonISel.cpp
  llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
  llvm/test/CodeGen/PowerPC/is_fpclass.ll
  llvm/test/CodeGen/X86/is_fpclass.ll

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