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First you should learn how to write a pass and then a MachineFunctionPass. >From LLVM website, you can refer to http://llvm.org/docs/WritingAnLLVMPass.html And for outside pass, you can refer to http://adriansampson.net/blog/llvm.html It's a great article. And the author put the source code on Github <https://github.com/sampsyo/llvm-pass-skeleton>. 2016-03-01 14:36 GMT+08:00 Balasaheb Dabhade via llvm-dev < llvm-dev at lists.llvm.org>: > Hello everyone, > > I have written simple LLVM...

Hello everyone, I have written simple LLVM passes, but I cannot able to write a MachineFunctionPass pass. I am following the steps form the following link but it is not working: http://www.gabriel.urdhr.fr/2014/09/26/adding-a-llvm-pass/ Please share the sample MachineFunctionPass code or steps to follow to write MachineFunctionPass. Thanks, Bala -- Thanks, Bala IIITA Allahabad --------------

...virtual void getAnalysisUsage(AnalysisUsage& au) const override { au.setPreservesCFG(); au.addRequired<LoopInfoWrapperPass>(); } }; } char SkeletonPass::ID = 0; //Automatically enable the pass. //http://adriansampson.net/blog/clangpass.html static void registerSkeletonPass(const PassManagerBuilder &, legacy::PassManagerBase &PM) { PM.add(new SkeletonPass()); } static RegisterStandardPasses RegisterMyPass(PassManagerBuilder::EP_ModuleOptimizerEarly, registerSkeletonP...