[PATCH] D143707: [AMDGPU] Allow architected SGPRs for workgroup IDs

[Christudasan Devadasan via Phabricator via llvm-commits]

cdevadas created this revision.
cdevadas added reviewers: rampitec, foad.
Herald added subscribers: kosarev, StephenFan, kerbowa, hiraditya, tpr, dstuttard, yaxunl, jvesely, kzhuravl, arsenm.
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Some subtargets use architected SGPRs for workgroup
IDs instead of the regular SGPRs. This patch enables
the support for the same and is guarded under the
subtarget feature FeatureArchitectedSGPRs.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D143707

Files:
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
  llvm/test/CodeGen/AMDGPU/workgroup-id-in-arch-sgprs.ll

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