[PATCH] D37780: AMDGPU: Don't spill SP reg like a normal CSR

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, kzhuravl.

https://reviews.llvm.org/D37780

Files:
  lib/Target/AMDGPU/SIFrameLowering.cpp
  lib/Target/AMDGPU/SIFrameLowering.h
  lib/Target/AMDGPU/SIInstrInfo.cpp
  test/CodeGen/AMDGPU/byval-frame-setup.ll
  test/CodeGen/AMDGPU/sibling-call.ll

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