llvm-split.cpp | Explore in Territory

//===-- llvm-split: command line tool for testing module splitting --------===//
//
// 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 can be used to test the llvm::SplitModule and
// TargetMachine::splitModule functions.
//
//===----------------------------------------------------------------------===//

#include "llvm/ADT/StringExtras.h"
#include "llvm/Bitcode/BitcodeWriter.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Verifier.h"
#include "llvm/IRReader/IRReader.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/ToolOutputFile.h"
#include "llvm/Support/WithColor.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/TargetParser/Triple.h"
#include "llvm/Transforms/Utils/SplitModule.h"

usingnamespacellvm;

static cl::OptionCategory SplitCategory("Split Options");

static cl::opt<std::string> InputFilename(cl::Positional,
                                          cl::desc("<input bitcode file>"),
                                          cl::init("-"),
                                          cl::value_desc("filename"),
                                          cl::cat(SplitCategory));

static cl::opt<std::string> OutputFilename("o",
                                           cl::desc("Override output filename"),
                                           cl::value_desc("filename"),
                                           cl::cat(SplitCategory));

static cl::opt<unsigned> NumOutputs("j", cl::Prefix, cl::init(2),
                                    cl::desc("Number of output files"),
                                    cl::cat(SplitCategory));

static cl::opt<bool>
    PreserveLocals("preserve-locals", cl::Prefix, cl::init(false),
                   cl::desc("Split without externalizing locals"),
                   cl::cat(SplitCategory));

static cl::opt<bool>
    RoundRobin("round-robin", cl::Prefix, cl::init(false),
               cl::desc("Use round-robin distribution of functions to "
                        "modules instead of the default name-hash-based one"),
               cl::cat(SplitCategory));

static cl::opt<std::string>
    MTriple("mtriple",
            cl::desc("Target triple. When present, a TargetMachine is created "
                     "and TargetMachine::splitModule is used instead of the "
                     "common SplitModule logic."),
            cl::value_desc("triple"), cl::cat(SplitCategory));

static cl::opt<std::string>
    MCPU("mcpu", cl::desc("Target CPU, ignored if -mtriple is not used"),
         cl::value_desc("cpu"), cl::cat(SplitCategory));

int main(int argc, char **argv) { … }
llvm/llvm/tools/llvm-split/llvm-split.cpp
