[PATCH] D91636: [AMDGPU] Fix and extend vccz workarounds

Matt Arsenault via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Nov 17 09:08:00 PST 2020


arsenm added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/SIInsertWaitcnts.cpp:1477
+          VCCZCorrect = false;
+      } else if (Inst.definesRegister(AMDGPU::VCC)) {
         // There is a hardware bug on CI/SI where SMRD instruction may corrupt
----------------
Could you have DefVCCLo && DefVCCHi?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D91636/new/

https://reviews.llvm.org/D91636



More information about the llvm-commits mailing list