llvm/llvm/lib/Target/Hexagon/HexagonAsmPrinter.cpp

//===- HexagonAsmPrinter.cpp - Print machine instrs to Hexagon assembly ---===//
//
// 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 contains a printer that converts from our internal representation
// of machine-dependent LLVM code to Hexagon assembly language. This printer is
// the output mechanism used by `llc'.
//
//===----------------------------------------------------------------------===//

#include "HexagonAsmPrinter.h"
#include "Hexagon.h"
#include "HexagonInstrInfo.h"
#include "HexagonRegisterInfo.h"
#include "HexagonSubtarget.h"
#include "HexagonTargetStreamer.h"
#include "MCTargetDesc/HexagonInstPrinter.h"
#include "MCTargetDesc/HexagonMCExpr.h"
#include "MCTargetDesc/HexagonMCInstrInfo.h"
#include "MCTargetDesc/HexagonMCTargetDesc.h"
#include "TargetInfo/HexagonTargetInfo.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDirectives.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <string>

usingnamespacellvm;

namespace llvm {

void HexagonLowerToMC(const MCInstrInfo &MCII, const MachineInstr *MI,
                      MCInst &MCB, HexagonAsmPrinter &AP);

} // end namespace llvm

#define DEBUG_TYPE …

// Given a scalar register return its pair.
inline static unsigned getHexagonRegisterPair(unsigned Reg,
      const MCRegisterInfo *RI) { … }

void HexagonAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
                                     raw_ostream &O) { … }

// isBlockOnlyReachableByFallthrough - We need to override this since the
// default AsmPrinter does not print labels for any basic block that
// is only reachable by a fall through. That works for all cases except
// for the case in which the basic block is reachable by a fall through but
// through an indirect from a jump table. In this case, the jump table
// will contain a label not defined by AsmPrinter.
bool HexagonAsmPrinter::isBlockOnlyReachableByFallthrough(
      const MachineBasicBlock *MBB) const { … }

/// PrintAsmOperand - Print out an operand for an inline asm expression.
bool HexagonAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
                                        const char *ExtraCode,
                                        raw_ostream &OS) { … }

bool HexagonAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
                                              unsigned OpNo,
                                              const char *ExtraCode,
                                              raw_ostream &O) { … }

static MCSymbol *smallData(AsmPrinter &AP, const MachineInstr &MI,
                           MCStreamer &OutStreamer, const MCOperand &Imm,
                           int AlignSize, const MCSubtargetInfo& STI) { … }

static MCInst ScaleVectorOffset(MCInst &Inst, unsigned OpNo,
                                unsigned VectorSize, MCContext &Ctx) { … }

void HexagonAsmPrinter::HexagonProcessInstruction(MCInst &Inst,
                                                  const MachineInstr &MI) { … }

/// Print out a single Hexagon MI to the current output stream.
void HexagonAsmPrinter::emitInstruction(const MachineInstr *MI) { … }

void HexagonAsmPrinter::emitStartOfAsmFile(Module &M) { … }

void HexagonAsmPrinter::emitEndOfAsmFile(Module &M) { … }

void HexagonAsmPrinter::emitAttributes() { … }

void HexagonAsmPrinter::EmitSled(const MachineInstr &MI, SledKind Kind) { … }

void HexagonAsmPrinter::LowerPATCHABLE_FUNCTION_ENTER(const MachineInstr &MI) { … }

void HexagonAsmPrinter::LowerPATCHABLE_FUNCTION_EXIT(const MachineInstr &MI) { … }

void HexagonAsmPrinter::LowerPATCHABLE_TAIL_CALL(const MachineInstr &MI) { … }

extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeHexagonAsmPrinter() { … }