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Have you check `LoopAccessLegacyAnalysis::runOnFunction` ran as you expect? Besides, I am not sure if `LoopAccessLegacyAnalysis::runOnFunction` does anything useful, have you check that, too? 2018-02-08 1:49 GMT+08:00 Kewen Meng via llvm-dev <llvm-dev at lists.llvm.org>: > Hi LLVM community, > > I am writing a custom pass for analyzing the dependence information for > the

Hi LLVM community, I am writing a custom pass for analyzing the dependence information for the memory access within a loop. I found “LoopAccessLegacyAnalysis” class useful, however I m not able to obtain information from that pass. Here is what I did to get the information: // require pass virtual void getAnalysisUsage(AnalysisUsage &AU) const {