[PATCH] D139673: [AMDGPU][SIFrameLowering] Mark VGPR used for AGPR spills as reserved

[Jeffrey Byrnes via Phabricator via llvm-commits]

jrbyrnes updated this revision to Diff 481729.
jrbyrnes added a comment.

Add test to capture bug. Consecutive accvgpr reads before buffer load result in clobber before patch.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139673/new/

https://reviews.llvm.org/D139673

Files:
  llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
  llvm/test/CodeGen/AMDGPU/accvgpr-spill-scc-clobber.mir
  llvm/test/CodeGen/AMDGPU/agpr-copy-no-free-registers.ll
  llvm/test/CodeGen/AMDGPU/copyVGPRClobberSpillVGPR.mir

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