[PATCH] D94429: AMDGPU: Move handling of allocation of fixed ABI inputs

[Matt Arsenault via Phabricator via llvm-commits]

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For the fixed ABI, set this in the initial argument constructor,
rather than relying on the allocation logic to set the values. Also
stop passing them for amdgpu_gfx, since the DAG path seems to skip
these. I'm unclear on what amdgpu_gfx's expectations are.  This will
allow moving the special input registers out of the normal argument
range


https://reviews.llvm.org/D94429

Files:
  llvm/lib/Target/AMDGPU/AMDGPUCallLowering.cpp
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-call-return-values.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-call.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-indirect-call.ll

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