llvm/llvm/tools/llvm-diff/llvm-diff.cpp

//===-- llvm-diff.cpp - Module comparator command-line driver ---*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the command-line driver for the difference engine.
//
//===----------------------------------------------------------------------===//

#include "lib/DiffLog.h"
#include "lib/DifferenceEngine.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IRReader/IRReader.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/WithColor.h"
#include <string>
#include <utility>


usingnamespacellvm;

/// Reads a module from a file.  On error, messages are written to stderr
/// and null is returned.
static std::unique_ptr<Module> readModule(LLVMContext &Context,
                                          StringRef Name) { … }

static void diffGlobal(DifferenceEngine &Engine, Module &L, Module &R,
                       StringRef Name) { … }

cl::OptionCategory DiffCategory("Diff Options");

static cl::opt<std::string> LeftFilename(cl::Positional,
                                         cl::desc("<first file>"), cl::Required,
                                         cl::cat(DiffCategory));
static cl::opt<std::string> RightFilename(cl::Positional,
                                          cl::desc("<second file>"),
                                          cl::Required, cl::cat(DiffCategory));
static cl::list<std::string> GlobalsToCompare(cl::Positional,
                                              cl::desc("<globals to compare>"),
                                              cl::cat(DiffCategory));

int main(int argc, char **argv) { … }