[llvm-dev] a stack dump in llvm pass (LLVM 3.7.0)

[Q Z via llvm-dev]

I wrote a llvm pass:

using namespace llvm;namespace{
  struct CountOperands : public FunctionPass
  {
    std::map<std::string,int> opCounter;
    static char ID;

    /*Constructor*/
    CountOperands() : FunctionPass(ID) {}

    /*RunOnFuntion Method*/
    virtual bool runOnFunction( Function &F)
    {
      errs() << "Function Name: " << F.getName() << "\n";

      /*Reading the OpCode in the function*/
      for (Function::iterator b = F.begin(), be = F.end(); b != be; ++b)
      {

        errs() << "##########Works fine "<<"\n";

        for (BasicBlock::iterator i = b.begin(), ie = b.end(); i != ie; ++i)
        {

             errs()<<"##########Works fine till here "<<"\n";

              if(BranchInst *pBranchInst=dyn_cast<BranchInst>(i))

              {//the problem is here,there is a stack dump?why?

              }

          .....

whem I run the pass,the command is :

opt -load XX/XX.so <hello.bc> /dev/null

then I got a stack dump finally.why? could somebody help me?
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