[PATCH] D51736: DAG: Change behavior of fminnum/fmaxnum nodes

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: scanon, spatel, rampitec.
Herald added subscribers: tpr, nhaehnle, wdng, jvesely.

Introduce new versions that follow the IEEE semantics
to help with legalization. Start quieting the inputs
on AMDGPU as necessary


https://reviews.llvm.org/D51736

Files:
  include/llvm/CodeGen/ISDOpcodes.h
  include/llvm/CodeGen/TargetLowering.h
  include/llvm/Target/TargetSelectionDAG.td
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
  lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
  lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
  lib/CodeGen/SelectionDAG/TargetLowering.cpp
  lib/CodeGen/TargetLoweringBase.cpp
  lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
  lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  lib/Target/AMDGPU/AMDGPUISelLowering.h
  lib/Target/AMDGPU/AMDGPUInstructions.td
  lib/Target/AMDGPU/SIISelLowering.cpp
  lib/Target/AMDGPU/SIISelLowering.h
  lib/Target/AMDGPU/SIInstructions.td
  lib/Target/AMDGPU/VOP2Instructions.td
  lib/Target/AMDGPU/VOP3Instructions.td
  lib/Target/AMDGPU/VOP3PInstructions.td
  test/CodeGen/AMDGPU/clamp.ll
  test/CodeGen/AMDGPU/fcanonicalize-elimination.ll
  test/CodeGen/AMDGPU/fmax3.f64.ll
  test/CodeGen/AMDGPU/fmax3.ll
  test/CodeGen/AMDGPU/fmax_legacy.f16.ll
  test/CodeGen/AMDGPU/fmax_legacy.ll
  test/CodeGen/AMDGPU/fmaxnum.ll
  test/CodeGen/AMDGPU/fmin3.ll
  test/CodeGen/AMDGPU/fmin_fmax_legacy.amdgcn.ll
  test/CodeGen/AMDGPU/fmin_legacy.f16.ll
  test/CodeGen/AMDGPU/fmin_legacy.ll
  test/CodeGen/AMDGPU/fminnum.f64.ll
  test/CodeGen/AMDGPU/fminnum.ll
  test/CodeGen/AMDGPU/fneg-combines.ll
  test/CodeGen/AMDGPU/known-never-snan.ll
  test/CodeGen/AMDGPU/llvm.maxnum.f16.ll
  test/CodeGen/AMDGPU/llvm.minnum.f16.ll
  test/CodeGen/AMDGPU/reduction.ll

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