Dump functions from LLVM's bc file Compile: clang++-mp-3.3 `llvm-config-mp-3.3 --cxxflags --ldflags --libs core jit X86 bitreader` -std=c++0x -o llvmfcs llvmfcs.cpp Usage: llvmfcs filename.bc

llvmfcs.cpp

#include <iostream>
#include <string>

#include <llvm/ADT/OwningPtr.h>
#include <llvm/Bitcode/ReaderWriter.h>
#include <llvm/IR/LLVMContext.h>
#include <llvm/IR/Module.h>
#include <llvm/Support/MemoryBuffer.h>
#include <llvm/Support/system_error.h>

using namespace llvm;

int main(int argc, char * argv[]) {
    if (2 != argc) {
        std::cerr << "Invalid arguments\n";
        return 1;
    }

    OwningPtr<MemoryBuffer> mbuff_ptr;
    error_code ec = MemoryBuffer::getFile(argv[1], mbuff_ptr);
    if (0 != ec.value()) {
        std::cerr << "ERROR: " << argv[1] << ": " << ec.message() << std::endl;
        return 1;
    }
    
    LLVMContext ctx;
    std::string error_msg;
    Module * module = ParseBitcodeFile(mbuff_ptr.get(), ctx, &error_msg);
    if (!error_msg.empty()) {
        std::cerr << "ERROR: " << argv[1] << ": " << error_msg << std::endl;
        return 1;
    }

    Module::FunctionListType & fcs = module->getFunctionList();

    std::size_t i = 0;
    for (auto it = fcs.begin(); it != fcs.end(); ++it, ++i) {
        FunctionType * type = it->getFunctionType();
        (std::cout << i << ": ").flush();
        type->dump();
        std::cout << std::endl;
    }

    return 0;
}