[LLVMdev] llvm::LoopPass (original) (raw)

Edvard Ghazaryan edvard_gh at yahoo.com
Mon Jul 23 00:06:31 PDT 2012


Thanks Duncan.

Edvard


From: Duncan Sands <baldrick at free.fr> To: llvmdev at cs.uiuc.edu Sent: Sunday, July 22, 2012 11:45 PM Subject: Re: [LLVMdev] llvm::LoopPass

Hi Edvard, _ZTIN4llvm8LoopPassE is "typeinfo for llvm::LoopPass".  LLVM is built without typeinfo, so you will need to build your pass with -fno-rtti.

Ciao, Duncan.

I'm trying to implement LoopPass. Here is simple code :

class LoopParser: public llvm::LoopPass { public: static char ID; public: virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const { AU.addRequiredID(llvm::LoopSimplifyID); AU.addPreservedID(llvm::LoopSimplifyID); AU.addRequiredllvm::LoopInfo(); } virtual bool runOnLoop(llvm::Loop* IncomingLoop, llvm::LPPassManager& LPMRef) { return false; } LoopParser() : llvmLoopPass(ID) {} }; char LoopParser::ID = 0; static llvm::RegisterPass XX("LoopParser", "TODO ", false, false); when I'am trying to load  a get the error message : undefined symbol: ZTIN4llvm8LoopPassE How can I fix? Thanks in advance, Edvard


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