[C++实现]遍历LLVM字节码文件的所有Instruction

#include <fstream>
#include <iostream>
#include <memory>
#include <iosfwd>
#include <llvm-c/IRReader.h>
#include <llvm/IR/LLVMContext.h>
#include <llvm/Support/SourceMgr.h>
#include <llvm/Support/MemoryBuffer.h>
#include <llvm/IR/Module.h>
#include <llvm/IRReader/IRReader.h>
#include <llvm/IR/IRBuilder.h>
#include <llvm/IR/Function.h>
#include <llvm/IR/BasicBlock.h>
#include <llvm/IR/Instruction.h>
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/FormattedStream.h"

using namespace llvm;
using namespace std;

int main(int argc, char** argv){
    if (argc < 2) {
        errs() << "Expected an argument - IR file name\n";
        exit(1);
    }

    LLVMContext &Context = getGlobalContext();
    SMDiagnostic Err;

    std::unique_ptr<llvm::Module> module = parseIRFile(argv[1], Err, Context);
    Module* Mod = module.get();

    if (!Mod) {
        Err.print(argv[0], errs());
        return 1;
    }

    for (Module::iterator FunIt = Mod->begin() ; FunIt != Mod->end() ; ++FunIt) {
        for (Function::iterator i = FunIt->begin(), e = FunIt->end(); i != e; ++i) {
             std::cout<< "Basic block name=" << i->getName().str() << std::endl;
             for(auto j=i->begin(),f=i->end(); j!=f;j++) {
                 j->dump();
             }
        }      
    }

   formatted_raw_ostream* Out;  
}