llvm-sim.cpp | Explore in Territory

//===-- llvm-sim.cpp - Find  similar sections of programs -------*- 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 program finds similar sections of a Module, and exports them as a JSON
// file.
//
// To find similarities contained across multiple modules, please use llvm-link
// first to merge the modules.
//
//===----------------------------------------------------------------------===//

#include "llvm/Analysis/IRSimilarityIdentifier.h"
#include "llvm/IRReader/IRReader.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/JSON.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/ToolOutputFile.h"

usingnamespacellvm;
usingnamespaceIRSimilarity;

static cl::opt<std::string> OutputFilename("o", cl::desc("Output Filename"),
                                           cl::init("-"),
                                           cl::value_desc("filename"));

static cl::opt<std::string> InputSourceFile(cl::Positional,
                                            cl::desc("<Source file>"),
                                            cl::init("-"),
                                            cl::value_desc("filename"));

/// Retrieve the unique number \p I was mapped to in parseBitcodeFile.
///
/// \param I - The Instruction to find the instruction number for.
/// \param LLVMInstNum - The mapping of Instructions to their location in the
/// module represented by an unsigned integer.
/// \returns The instruction number for \p I if it exists.
std::optional<unsigned>
getPositionInModule(const Instruction *I,
                    const DenseMap<Instruction *, unsigned> &LLVMInstNum) { … }

/// Exports the given SimilarityGroups to a JSON file at \p FilePath.
///
/// \param FilePath - The path to the output location.
/// \param SimSections - The similarity groups to process.
/// \param LLVMInstNum - The mapping of Instructions to their location in the
/// module represented by an unsigned integer.
/// \returns A nonzero error code if there was a failure creating the file.
std::error_code
exportToFile(const StringRef FilePath,
             const SimilarityGroupList &SimSections,
             const DenseMap<Instruction *, unsigned> &LLVMInstNum) { … }

int main(int argc, const char *argv[]) { … }
llvm/llvm/tools/llvm-sim/llvm-sim.cpp
