[PATCH] D151986: UniformityAnalysis: Skip computation with no branch divergence

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: sameerds, nhaehnle, yassingh.
Herald added subscribers: foad, kerbowa, hiraditya, jvesely.
Herald added a project: All.
arsenm requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

Check TTI before bothering to run the computation. Everything
will be assumed uniform by default.


https://reviews.llvm.org/D151986

Files:
  llvm/include/llvm/ADT/GenericUniformityImpl.h
  llvm/include/llvm/ADT/GenericUniformityInfo.h
  llvm/include/llvm/CodeGen/MachineUniformityAnalysis.h
  llvm/lib/Analysis/UniformityAnalysis.cpp
  llvm/lib/CodeGen/MachineUniformityAnalysis.cpp
  llvm/lib/Target/AMDGPU/AMDGPURegBankSelect.cpp

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