[PATCH] D83872: [AMDGPU] Update VMEM scalar write hazard mitigation sequence

[Carl Ritson via Phabricator via llvm-commits]

critson created this revision.
critson added reviewers: rampitec, foad.
Herald added subscribers: llvm-commits, kerbowa, hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl, arsenm.
Herald added a project: LLVM.

Using s_waitcnt_depctr 0xffe3 is potentially faster than v_nop.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83872

Files:
  llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.div.fmas.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.end.cf.i32.ll
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_pixelshader.ll
  llvm/test/CodeGen/AMDGPU/cc-update.ll
  llvm/test/CodeGen/AMDGPU/vgpr-descriptor-waterfall-loop-idom-update.ll
  llvm/test/CodeGen/AMDGPU/vgpr-tuple-allocation.ll
  llvm/test/CodeGen/AMDGPU/vmem-to-salu-hazard.mir
  llvm/test/CodeGen/AMDGPU/wave32.ll

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