llvm/llvm/tools/opt/NewPMDriver.cpp

//===- NewPMDriver.cpp - Driver for opt with new PM -----------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
/// \file
///
/// This file is just a split of the code that logically belongs in opt.cpp but
/// that includes the new pass manager headers.
///
//===----------------------------------------------------------------------===//

#include "NewPMDriver.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/CGSCCPassManager.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Bitcode/BitcodeWriterPass.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/PassManager.h"
#include "llvm/IR/Verifier.h"
#include "llvm/IRPrinter/IRPrintingPasses.h"
#include "llvm/Passes/PassBuilder.h"
#include "llvm/Passes/PassPlugin.h"
#include "llvm/Passes/StandardInstrumentations.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ToolOutputFile.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Transforms/IPO/ThinLTOBitcodeWriter.h"
#include "llvm/Transforms/Instrumentation/AddressSanitizer.h"
#include "llvm/Transforms/Scalar/LoopPassManager.h"
#include "llvm/Transforms/Utils/Debugify.h"

usingnamespacellvm;
usingnamespaceopt_tool;

namespace llvm {
cl::opt<bool> DebugifyEach(
    "debugify-each",
    cl::desc("Start each pass with debugify and end it with check-debugify"));

cl::opt<std::string>
    DebugifyExport("debugify-export",
                   cl::desc("Export per-pass debugify statistics to this file"),
                   cl::value_desc("filename"));

cl::opt<bool> VerifyEachDebugInfoPreserve(
    "verify-each-debuginfo-preserve",
    cl::desc("Start each pass with collecting and end it with checking of "
             "debug info preservation."));

cl::opt<std::string>
    VerifyDIPreserveExport("verify-di-preserve-export",
                   cl::desc("Export debug info preservation failures into "
                            "specified (JSON) file (should be abs path as we use"
                            " append mode to insert new JSON objects)"),
                   cl::value_desc("filename"), cl::init(""));

} // namespace llvm

enum class DebugLogging {};

static cl::opt<DebugLogging> DebugPM(
    "debug-pass-manager", cl::Hidden, cl::ValueOptional,
    cl::desc("Print pass management debugging information"),
    cl::init(DebugLogging::None),
    cl::values(
        clEnumValN(DebugLogging::Normal, "", ""),
        clEnumValN(DebugLogging::Quiet, "quiet",
                   "Skip printing info about analyses"),
        clEnumValN(
            DebugLogging::Verbose, "verbose",
            "Print extra information about adaptors and pass managers")));

// This flag specifies a textual description of the alias analysis pipeline to
// use when querying for aliasing information. It only works in concert with
// the "passes" flag above.
static cl::opt<std::string>
    AAPipeline("aa-pipeline",
               cl::desc("A textual description of the alias analysis "
                        "pipeline for handling managed aliasing queries"),
               cl::Hidden, cl::init("default"));

/// {{@ These options accept textual pipeline descriptions which will be
/// inserted into default pipelines at the respective extension points
static cl::opt<std::string> PeepholeEPPipeline(
    "passes-ep-peephole",
    cl::desc("A textual description of the function pass pipeline inserted at "
             "the Peephole extension points into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> LateLoopOptimizationsEPPipeline(
    "passes-ep-late-loop-optimizations",
    cl::desc(
        "A textual description of the loop pass pipeline inserted at "
        "the LateLoopOptimizations extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> LoopOptimizerEndEPPipeline(
    "passes-ep-loop-optimizer-end",
    cl::desc("A textual description of the loop pass pipeline inserted at "
             "the LoopOptimizerEnd extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> ScalarOptimizerLateEPPipeline(
    "passes-ep-scalar-optimizer-late",
    cl::desc("A textual description of the function pass pipeline inserted at "
             "the ScalarOptimizerLate extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> CGSCCOptimizerLateEPPipeline(
    "passes-ep-cgscc-optimizer-late",
    cl::desc("A textual description of the cgscc pass pipeline inserted at "
             "the CGSCCOptimizerLate extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> VectorizerStartEPPipeline(
    "passes-ep-vectorizer-start",
    cl::desc("A textual description of the function pass pipeline inserted at "
             "the VectorizerStart extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> PipelineStartEPPipeline(
    "passes-ep-pipeline-start",
    cl::desc("A textual description of the module pass pipeline inserted at "
             "the PipelineStart extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> PipelineEarlySimplificationEPPipeline(
    "passes-ep-pipeline-early-simplification",
    cl::desc("A textual description of the module pass pipeline inserted at "
             "the EarlySimplification extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> OptimizerEarlyEPPipeline(
    "passes-ep-optimizer-early",
    cl::desc("A textual description of the module pass pipeline inserted at "
             "the OptimizerEarly extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> OptimizerLastEPPipeline(
    "passes-ep-optimizer-last",
    cl::desc("A textual description of the module pass pipeline inserted at "
             "the OptimizerLast extension point into default pipelines"),
    cl::Hidden);
static cl::opt<std::string> FullLinkTimeOptimizationEarlyEPPipeline(
    "passes-ep-full-link-time-optimization-early",
    cl::desc("A textual description of the module pass pipeline inserted at "
             "the FullLinkTimeOptimizationEarly extension point into default "
             "pipelines"),
    cl::Hidden);
static cl::opt<std::string> FullLinkTimeOptimizationLastEPPipeline(
    "passes-ep-full-link-time-optimization-last",
    cl::desc("A textual description of the module pass pipeline inserted at "
             "the FullLinkTimeOptimizationLast extension point into default "
             "pipelines"),
    cl::Hidden);
/// @}}

static cl::opt<bool> DisablePipelineVerification(
    "disable-pipeline-verification",
    cl::desc("Only has an effect when specified with -print-pipeline-passes. "
             "Disables verifying that the textual pipeline generated by "
             "-print-pipeline-passes can be used to create a pipeline."),
    cl::Hidden);


static cl::opt<PGOKind>
    PGOKindFlag("pgo-kind", cl::init(NoPGO), cl::Hidden,
                cl::desc("The kind of profile guided optimization"),
                cl::values(clEnumValN(NoPGO, "nopgo", "Do not use PGO."),
                           clEnumValN(InstrGen, "pgo-instr-gen-pipeline",
                                      "Instrument the IR to generate profile."),
                           clEnumValN(InstrUse, "pgo-instr-use-pipeline",
                                      "Use instrumented profile to guide PGO."),
                           clEnumValN(SampleUse, "pgo-sample-use-pipeline",
                                      "Use sampled profile to guide PGO.")));
static cl::opt<std::string> ProfileFile("profile-file",
                                 cl::desc("Path to the profile."), cl::Hidden);
static cl::opt<std::string>
    MemoryProfileFile("memory-profile-file",
                      cl::desc("Path to the memory profile."), cl::Hidden);

static cl::opt<CSPGOKind> CSPGOKindFlag(
    "cspgo-kind", cl::init(NoCSPGO), cl::Hidden,
    cl::desc("The kind of context sensitive profile guided optimization"),
    cl::values(
        clEnumValN(NoCSPGO, "nocspgo", "Do not use CSPGO."),
        clEnumValN(
            CSInstrGen, "cspgo-instr-gen-pipeline",
            "Instrument (context sensitive) the IR to generate profile."),
        clEnumValN(
            CSInstrUse, "cspgo-instr-use-pipeline",
            "Use instrumented (context sensitive) profile to guide PGO.")));

static cl::opt<std::string> CSProfileGenFile(
    "cs-profilegen-file",
    cl::desc("Path to the instrumented context sensitive profile."),
    cl::Hidden);

static cl::opt<std::string>
    ProfileRemappingFile("profile-remapping-file",
                         cl::desc("Path to the profile remapping file."),
                         cl::Hidden);

static cl::opt<PGOOptions::ColdFuncOpt> PGOColdFuncAttr(
    "pgo-cold-func-opt", cl::init(PGOOptions::ColdFuncOpt::Default), cl::Hidden,
    cl::desc(
        "Function attribute to apply to cold functions as determined by PGO"),
    cl::values(clEnumValN(PGOOptions::ColdFuncOpt::Default, "default",
                          "Default (no attribute)"),
               clEnumValN(PGOOptions::ColdFuncOpt::OptSize, "optsize",
                          "Mark cold functions with optsize."),
               clEnumValN(PGOOptions::ColdFuncOpt::MinSize, "minsize",
                          "Mark cold functions with minsize."),
               clEnumValN(PGOOptions::ColdFuncOpt::OptNone, "optnone",
                          "Mark cold functions with optnone.")));

static cl::opt<bool> DebugInfoForProfiling(
    "debug-info-for-profiling", cl::init(false), cl::Hidden,
    cl::desc("Emit special debug info to enable PGO profile generation."));

static cl::opt<bool> PseudoProbeForProfiling(
    "pseudo-probe-for-profiling", cl::init(false), cl::Hidden,
    cl::desc("Emit pseudo probes to enable PGO profile generation."));

static cl::opt<bool> DisableLoopUnrolling(
    "disable-loop-unrolling",
    cl::desc("Disable loop unrolling in all relevant passes"), cl::init(false));

template <typename PassManagerT>
bool tryParsePipelineText(PassBuilder &PB,
                          const cl::opt<std::string> &PipelineOpt) {}

/// If one of the EPPipeline command line options was given, register callbacks
/// for parsing and inserting the given pipeline
static void registerEPCallbacks(PassBuilder &PB) {}

#define HANDLE_EXTENSION
#include "llvm/Support/Extension.def"

bool llvm::runPassPipeline(
    StringRef Arg0, Module &M, TargetMachine *TM, TargetLibraryInfoImpl *TLII,
    ToolOutputFile *Out, ToolOutputFile *ThinLTOLinkOut,
    ToolOutputFile *OptRemarkFile, StringRef PassPipeline,
    ArrayRef<PassPlugin> PassPlugins,
    ArrayRef<std::function<void(llvm::PassBuilder &)>> PassBuilderCallbacks,
    OutputKind OK, VerifierKind VK, bool ShouldPreserveAssemblyUseListOrder,
    bool ShouldPreserveBitcodeUseListOrder, bool EmitSummaryIndex,
    bool EmitModuleHash, bool EnableDebugify, bool VerifyDIPreserve,
    bool UnifiedLTO) {}

void llvm::printPasses(raw_ostream &OS) {}