[PATCH] D31161: [AMDGPU] New Waitcnt Insertion Pass

[Kannan Narayanan via Phabricator via llvm-commits]

kanarayan updated this revision to Diff 94868.
kanarayan added a comment.

Fix the looping issue found with the GL input. The bug only triggers for some targets under some conditions. This is due to an earlier fix for a VCCZ bug; that code needs to go away once the scheduler is fixed to handle this scenario. I need to add a lit test.


https://reviews.llvm.org/D31161

Files:
  lib/Target/AMDGPU/AMDGPU.h
  lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
  lib/Target/AMDGPU/CMakeLists.txt
  lib/Target/AMDGPU/DSInstructions.td
  lib/Target/AMDGPU/SIInsertWaitcnts.cpp
  test/CodeGen/AMDGPU/basic-branch.ll
  test/CodeGen/AMDGPU/branch-condition-and.ll
  test/CodeGen/AMDGPU/branch-relaxation.ll
  test/CodeGen/AMDGPU/control-flow-fastregalloc.ll
  test/CodeGen/AMDGPU/indirect-addressing-si.ll
  test/CodeGen/AMDGPU/infinite-loop.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.buffer.store.format.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.buffer.store.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.ds.bpermute.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.ds.permute.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.ds.swizzle.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.image.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.s.dcache.inv.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.s.dcache.inv.vol.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.s.dcache.wb.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.s.dcache.wb.vol.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.s.waitcnt.ll
  test/CodeGen/AMDGPU/multi-divergent-exit-region.ll
  test/CodeGen/AMDGPU/ret_jump.ll
  test/CodeGen/AMDGPU/si-lower-control-flow-unreachable-block.ll
  test/CodeGen/AMDGPU/smrd-vccz-bug.ll
  test/CodeGen/AMDGPU/spill-m0.ll
  test/CodeGen/AMDGPU/valu-i1.ll

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