[LLVMdev] InstVisitor usage problem

[JinHuang]

Hi.All
I had a problem in using llvm::InstVisitor class, my pass is like that:

using namespace llvm;

namespace 
{
	class InstVisit : public ModulePass,
						public InstVisitor<InstVisit>
	{
		public :
			static char ID;
			InstVisit():ModulePass(ID){}

			virtual bool runOnModule(Module &M)
			{
				visit(M);
				return false;
			}

			void visitStoreInst(StoreInst &SI)
			{
				errs()<<"a store inst:"<<&SI<<"\n";
			}
	};

	 char InstVisit::ID = 0;
	 static RegisterPass<InstVisit>
		 X("visitInst","visit inst test");
}

then I use 
opt -load /home/king/llvm/Release+Asserts/lib/instVisit.so
-visitInst<load.bc> /dev/null 
to run the pass. but it appears such errors:

0  opt             0x00000000012700d2 llvm::sys::PrintStackTrace(_IO_FILE*)
+ 34
1  opt             0x000000000126fd29
2  libpthread.so.0 0x00007f9ba0336bd0
3  instVisit.so    0x00007f9b9f33a200
4  opt             0x00000000012081ef
llvm::MPPassManager::runOnModule(llvm::Module&) + 655
5  opt             0x0000000001209f7f
llvm::PassManagerImpl::run(llvm::Module&) + 223
6  opt             0x000000000057e1ac main + 3772
7  libc.so.6       0x00007f9b9f55eea5 __libc_start_main + 245
8  opt             0x000000000058fe65
Stack dump:
0.	Program arguments: opt -load
/home/king/llvm/Release+Asserts/lib/instVisit.so -visitInst 
1.	Running pass 'visit inst test' on module '<stdin>'.
Segmentation fault (core dumped)

the load.c is :

int main() {
  int x, y, z;

  x = 12;
  y = x + 22;  /* load value of x that was just stored */
  z = y + 33;  /* load value of y that was just stored */
  return z;
}

there is no stdin in the program .but why it says "Running pass 'visit inst
test' on module '<stdin>'."

Thank You!

-JinHuang




-----
Kind Regards!
-JinHuang
--
View this message in context: http://llvm.1065342.n5.nabble.com/InstVisitor-usage-problem-tp64909.html
Sent from the LLVM - Dev mailing list archive at Nabble.com.