[PATCH] D28699: AMDGPU: Use source modifiers with f16->f32 conversions

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
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Herald added a reviewer: tstellarAMD.
Herald added subscribers: tony-tye, yaxunl, nhaehnle, wdng, kzhuravl.

The operand types were defined to fit the fp16_to_fp node, which
has the half as an integer type. v_cvt_f32_f16 does support
source modifiers, so change this to have an FP type and modifiers.

      

For targets without legal f16, this requires recognizing the
bit operations and trying to produce them.


https://reviews.llvm.org/D28699

Files:
  lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  lib/Target/AMDGPU/AMDGPUISelLowering.h
  lib/Target/AMDGPU/AMDGPUInstructions.td
  lib/Target/AMDGPU/MCTargetDesc/SIMCCodeEmitter.cpp
  lib/Target/AMDGPU/SIInstrInfo.cpp
  lib/Target/AMDGPU/SIInstrInfo.td
  lib/Target/AMDGPU/SIInstructions.td
  lib/Target/AMDGPU/VOP1Instructions.td
  test/CodeGen/AMDGPU/fabs.f16.ll
  test/CodeGen/AMDGPU/fcmp.f16.ll
  test/CodeGen/AMDGPU/fneg-fabs.f16.ll
  test/CodeGen/AMDGPU/fneg.f16.ll
  test/CodeGen/AMDGPU/fpext.f16.ll
  test/CodeGen/AMDGPU/fptrunc.f16.ll
  test/CodeGen/AMDGPU/v_mac_f16.ll

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