[PATCH] D96336: [AMDGPU] Save VGPR of whole wave when spilling

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


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Comment at: llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp:1337-1338
+    RegScavenger TmpRS;
+    TmpRS.enterBasicBlock(*MBB);
+    TmpRS.forward(MI);
+    bool TmpVGPRLive = TmpRS.isRegUsed(TmpVGPR);
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Still have a temporary scavenger here. Also should use the reverse iteration method


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D96336/new/

https://reviews.llvm.org/D96336