[LLVMdev] Fwd: Problem getting LoopInfo inside non-LoopPass

[David Blaikie]

On Tue, Nov 29, 2011 at 6:59 PM, Ryan Taylor <ryta1203 at gmail.com> wrote:
> The following code is causing an "UNREACHABLE executed!" and a stack dump,
> any ideas?

The stack might be handy.

> namespace {
>   struct myPass : public CallGraphSCCPass {
>   static char ID;
>   myPass() : CallGraphSCCPass(ID) {}
>   virtual void getAnalysisUsage(AnalysisUsage &AU) const {
>            AU.setPreservesAll();
>            AU.addRequired<LoopInfo>();
>   }
>   virtual bool runOnSCC(CallGraphSCC &SCC) {
>        for (CallGraphSCC::iterator CGNodeItr = SCC.begin(),
> CFNodeItrE=SCC.end();CGNodeItr!=CGNodeItrE;++CGNodeItr)  }
>                   const CallGraphNode *CGNode = *CGNodeItr;
>                   Function *F = CGNode->getFunction();
>                   if (!F->isDeclaration())
>                                LoopInfo &LI = getAnalysis<LoopInfo>(*F);
>         }
>        return false;
>    }
>   };
>    char myPass::ID = 0;
>    static RegisterPass<myPass> X("myPass", "This is my pass", false, false);
> }
>
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