llvm/tools/llvm-prof/llvm-prof.cpp

//===- llvm-prof.cpp - Read in and process llvmprof.out data files --------===//
// 
//                      The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
// 
//===----------------------------------------------------------------------===//
//
// This tools is meant for use with the various LLVM profiling instrumentation
// passes.  It reads in the data file produced by executing an instrumented
// program, and outputs a nice report.
//
//===----------------------------------------------------------------------===//

#include "ProfileInfo.h"
#include "llvm/Bytecode/Reader.h"
#include "Support/CommandLine.h"
#include <iostream>

namespace {
  cl::opt<std::string> 
  BytecodeFile(cl::Positional, cl::desc("<program bytecode file>"),
               cl::Required);

  cl::opt<std::string> 
  ProfileDataFile(cl::Positional, cl::desc("<llvmprof.out file>"),
                  cl::Optional, cl::init("llvmprof.out"));
}

int main(int argc, char **argv) {
  cl::ParseCommandLineOptions(argc, argv, " llvm profile dump decoder\n");

  // Read in the bytecode file...
  std::string ErrorMessage;
  Module *Result = ParseBytecodeFile(BytecodeFile, &ErrorMessage);
  if (Result == 0) {
    std::cerr << argv[0] << ": " << BytecodeFile << ": " << ErrorMessage
              << "\n";
    return 1;
  }

  // Read the profiling information
  ProfileInfo PI(argv[0], ProfileDataFile);

  return 0;
}