LLVMTargetMachine.cpp | Explore in Territory

//===-- LLVMTargetMachine.cpp - Implement the LLVMTargetMachine class -----===//
//
// 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 implements the LLVMTargetMachine class.
//
//===----------------------------------------------------------------------===//

#include "llvm/Analysis/Passes.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/BasicTTIImpl.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
usingnamespacellvm;

static cl::opt<bool>
    EnableTrapUnreachable("trap-unreachable", cl::Hidden,
                          cl::desc("Enable generating trap for unreachable"));

static cl::opt<bool> EnableNoTrapAfterNoreturn(
    "no-trap-after-noreturn", cl::Hidden,
    cl::desc("Do not emit a trap instruction for 'unreachable' IR instructions "
             "after noreturn calls, even if --trap-unreachable is set."));

void LLVMTargetMachine::initAsmInfo() { … }

LLVMTargetMachine::LLVMTargetMachine(const Target &T,
                                     StringRef DataLayoutString,
                                     const Triple &TT, StringRef CPU,
                                     StringRef FS, const TargetOptions &Options,
                                     Reloc::Model RM, CodeModel::Model CM,
                                     CodeGenOptLevel OL)
    : … { … }

TargetTransformInfo
LLVMTargetMachine::getTargetTransformInfo(const Function &F) const { … }

/// addPassesToX helper drives creation and initialization of TargetPassConfig.
static TargetPassConfig *
addPassesToGenerateCode(LLVMTargetMachine &TM, PassManagerBase &PM,
                        bool DisableVerify,
                        MachineModuleInfoWrapperPass &MMIWP) { … }

bool LLVMTargetMachine::addAsmPrinter(PassManagerBase &PM,
                                      raw_pwrite_stream &Out,
                                      raw_pwrite_stream *DwoOut,
                                      CodeGenFileType FileType,
                                      MCContext &Context) { … }

Expected<std::unique_ptr<MCStreamer>> LLVMTargetMachine::createMCStreamer(
    raw_pwrite_stream &Out, raw_pwrite_stream *DwoOut, CodeGenFileType FileType,
    MCContext &Context) { … }

bool LLVMTargetMachine::addPassesToEmitFile(
    PassManagerBase &PM, raw_pwrite_stream &Out, raw_pwrite_stream *DwoOut,
    CodeGenFileType FileType, bool DisableVerify,
    MachineModuleInfoWrapperPass *MMIWP) { … }

/// addPassesToEmitMC - Add passes to the specified pass manager to get
/// machine code emitted with the MCJIT. This method returns true if machine
/// code is not supported. It fills the MCContext Ctx pointer which can be
/// used to build custom MCStreamer.
///
bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM, MCContext *&Ctx,
                                          raw_pwrite_stream &Out,
                                          bool DisableVerify) { … }
llvm/llvm/lib/CodeGen/LLVMTargetMachine.cpp
