[PATCH] D72787: [BPF] Adjust optimizations to generate kernel verifier friendly codes

[Yonghong Song via Phabricator via llvm-commits]

yonghong-song updated this revision to Diff 270665.
yonghong-song edited the summary of this revision.
yonghong-song added a comment.

removed MachineInstr AdjustOpt transformation since latest linux 32bit handling has been improved. No need to llvm to generate additional shifts. Also handled two more cases in IR AdjustOpt for

  V - Lo u<= Hi - Lo --> V >= Lo && V <= Hi
  V - Lo u> Hi - Lo --> V <  Lo || V > Hi


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72787/new/

https://reviews.llvm.org/D72787

Files:
  llvm/lib/Target/BPF/BPF.h
  llvm/lib/Target/BPF/BPFAdjustOpt.cpp
  llvm/lib/Target/BPF/BPFTargetMachine.cpp
  llvm/lib/Target/BPF/CMakeLists.txt
  llvm/test/CodeGen/BPF/adjust-instcombine-1.ll
  llvm/test/CodeGen/BPF/adjust-instcombine-2.ll

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