[PATCH] D90296: [AMDGPU] Allow some modifiers on VOP3B instructions

[Jay Foad via Phabricator via llvm-commits]

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V_DIV_SCALE_F32/F64 <https://reviews.llvm.org/F64> are VOP3B encoded so they can't use the ABS src
modifier, but they can still use NEG and the usual output modifiers.

This partially reverts 3b99f12a4e6f "AMDGPU: Remove modifiers from v_div_scale_*".


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D90296

Files:
  llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
  llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
  llvm/lib/Target/AMDGPU/VOP3Instructions.td
  llvm/test/CodeGen/AMDGPU/fdiv-nofpexcept.ll
  llvm/test/CodeGen/AMDGPU/inserted-wait-states.mir
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.div.scale.ll
  llvm/test/CodeGen/AMDGPU/sched-crash-dbg-value.mir
  llvm/test/MC/AMDGPU/vop3-errs.s
  llvm/test/MC/AMDGPU/vop3.s

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