About loop information in LLVM during compiling

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#1

Hi, all
  Can we get the loop information in LLVM during compiling? In which
phase or function we can obtain the loop related information?

Thanks
May

#2

Hello,

I'd suggest starting by having a look at the LoopInfo analysis pass in lib/Analysis/LoopInfo.cpp. Other passes which operate on loops use this pass via getAnalysis<LoopInfo>. There are various examples of usage in lib/Transforms/Scalar/Loop*.cpp.

Regards,
  Jim