llvm/llvm/lib/Target/BPF/BPFSubtarget.cpp

//===-- BPFSubtarget.cpp - BPF Subtarget Information ----------------------===//
//
// 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 BPF specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//

#include "BPFSubtarget.h"
#include "BPF.h"
#include "BPFTargetMachine.h"
#include "GISel/BPFCallLowering.h"
#include "GISel/BPFLegalizerInfo.h"
#include "GISel/BPFRegisterBankInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/TargetParser/Host.h"

usingnamespacellvm;

#define DEBUG_TYPE …

#define GET_SUBTARGETINFO_TARGET_DESC
#define GET_SUBTARGETINFO_CTOR
#include "BPFGenSubtargetInfo.inc"

static cl::opt<bool> Disable_ldsx("disable-ldsx", cl::Hidden, cl::init(false),
  cl::desc("Disable ldsx insns"));
static cl::opt<bool> Disable_movsx("disable-movsx", cl::Hidden, cl::init(false),
  cl::desc("Disable movsx insns"));
static cl::opt<bool> Disable_bswap("disable-bswap", cl::Hidden, cl::init(false),
  cl::desc("Disable bswap insns"));
static cl::opt<bool> Disable_sdiv_smod("disable-sdiv-smod", cl::Hidden,
  cl::init(false), cl::desc("Disable sdiv/smod insns"));
static cl::opt<bool> Disable_gotol("disable-gotol", cl::Hidden, cl::init(false),
  cl::desc("Disable gotol insn"));
static cl::opt<bool>
    Disable_StoreImm("disable-storeimm", cl::Hidden, cl::init(false),
                     cl::desc("Disable BPF_ST (immediate store) insn"));

void BPFSubtarget::anchor() { … }

BPFSubtarget &BPFSubtarget::initializeSubtargetDependencies(StringRef CPU,
                                                            StringRef FS) { … }

void BPFSubtarget::initializeEnvironment() { … }

void BPFSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) { … }

BPFSubtarget::BPFSubtarget(const Triple &TT, const std::string &CPU,
                           const std::string &FS, const TargetMachine &TM)
    : … { … }

const CallLowering *BPFSubtarget::getCallLowering() const { … }

InstructionSelector *BPFSubtarget::getInstructionSelector() const { … }

const LegalizerInfo *BPFSubtarget::getLegalizerInfo() const { … }

const RegisterBankInfo *BPFSubtarget::getRegBankInfo() const { … }