text: //===- lib/MC/MCInst.cpp - MCInst implementation --------------------------===//
  //
  // 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
  //
  //===----------------------------------------------------------------------===//
  
  #include "llvm/MC/MCInst.h"
  #include "llvm/Config/llvm-config.h"
  #include "llvm/MC/MCExpr.h"
  #include "llvm/MC/MCInstPrinter.h"
  #include "llvm/Support/Casting.h"
  #include "llvm/Support/Compiler.h"
  #include "llvm/Support/Debug.h"
  #include "llvm/Support/raw_ostream.h"
  
  using namespace llvm;
  
  void MCOperand::print(raw_ostream &OS) const {
    OS << "<MCOperand ";
    if (!isValid())
      OS << "INVALID";
    else if (isReg())
      OS << "Reg:" << getReg();
    else if (isImm())
      OS << "Imm:" << getImm();
    else if (isSFPImm())
      OS << "SFPImm:" << bit_cast<float>(getSFPImm());
    else if (isDFPImm())
      OS << "DFPImm:" << bit_cast<double>(getDFPImm());
    else if (isExpr()) {
      OS << "Expr:(" << *getExpr() << ")";
    } else if (isInst()) {
      OS << "Inst:(" << *getInst() << ")";
    } else
      OS << "UNDEFINED";
    OS << ">";
  }
  
  bool MCOperand::evaluateAsConstantImm(int64_t &Imm) const {
    if (isImm()) {
      Imm = getImm();
      return true;
    }
    return false;
  }
  
  bool MCOperand::isBareSymbolRef() const {
    assert(isExpr() &&
           "isBareSymbolRef expects only expressions");
    const MCExpr *Expr = getExpr();
    MCExpr::ExprKind Kind = getExpr()->getKind();
    return Kind == MCExpr::SymbolRef &&
      cast<MCSymbolRefExpr>(Expr)->getKind() == MCSymbolRefExpr::VK_None;
  }
  
  #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  LLVM_DUMP_METHOD void MCOperand::dump() const {
    print(dbgs());
    dbgs() << "\n";
  }
  #endif
  
  void MCInst::print(raw_ostream &OS) const {
    OS << "<MCInst " << getOpcode();
    for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
      OS << " ";
      getOperand(i).print(OS);
    }
    OS << ">";
  }
  
  void MCInst::dump_pretty(raw_ostream &OS, const MCInstPrinter *Printer,
                           StringRef Separator) const {
    StringRef InstName = Printer ? Printer->getOpcodeName(getOpcode()) : "";
    dump_pretty(OS, InstName, Separator);
  }
  
  void MCInst::dump_pretty(raw_ostream &OS, StringRef Name,
                           StringRef Separator) const {
    OS << "<MCInst #" << getOpcode();
  
    // Show the instruction opcode name if we have it.
    if (!Name.empty())
      OS << ' ' << Name;
  
    for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
      OS << Separator;
      getOperand(i).print(OS);
    }
    OS << ">";
  }
  
  #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  LLVM_DUMP_METHOD void MCInst::dump() const {
    print(dbgs());
    dbgs() << "\n";
  }
  #endif
  