lib/MC/MCInst.cpp

   1 //===- lib/MC/MCInst.cpp - MCInst implementation --------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/MC/MCInst.h"
  10 #include "llvm/Config/llvm-config.h"
  11 #include "llvm/MC/MCExpr.h"
  12 #include "llvm/MC/MCInstPrinter.h"
  13 #include "llvm/Support/Casting.h"
  14 #include "llvm/Support/Compiler.h"
  15 #include "llvm/Support/Debug.h"
  16 #include "llvm/Support/raw_ostream.h"
  17
  18 using namespace llvm;
  19
  20 void MCOperand::print(raw_ostream &OS) const {
  21   OS << "<MCOperand ";
  22   if (!isValid())
  23     OS << "INVALID";
  24   else if (isReg())
  25     OS << "Reg:" << getReg();
  26   else if (isImm())
  27     OS << "Imm:" << getImm();
  28   else if (isFPImm())
  29     OS << "FPImm:" << getFPImm();
  30   else if (isExpr()) {
  31     OS << "Expr:(" << *getExpr() << ")";
  32   } else if (isInst()) {
  33     OS << "Inst:(" << *getInst() << ")";
  34   } else
  35     OS << "UNDEFINED";
  36   OS << ">";
  37 }
  38
  39 bool MCOperand::evaluateAsConstantImm(int64_t &Imm) const {
  40   if (isImm()) {
  41     Imm = getImm();
  42     return true;
  43   }
  44   return false;
  45 }
  46
  47 bool MCOperand::isBareSymbolRef() const {
  48   assert(isExpr() &&
  49          "isBareSymbolRef expects only expressions");
  50   const MCExpr *Expr = getExpr();
  51   MCExpr::ExprKind Kind = getExpr()->getKind();
  52   return Kind == MCExpr::SymbolRef &&
  53     cast<MCSymbolRefExpr>(Expr)->getKind() == MCSymbolRefExpr::VK_None;
  54 }
  55
  56 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  57 LLVM_DUMP_METHOD void MCOperand::dump() const {
  58   print(dbgs());
  59   dbgs() << "\n";
  60 }
  61 #endif
  62
  63 void MCInst::print(raw_ostream &OS) const {
  64   OS << "<MCInst " << getOpcode();
  65   for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
  66     OS << " ";
  67     getOperand(i).print(OS);
  68   }
  69   OS << ">";
  70 }
  71
  72 void MCInst::dump_pretty(raw_ostream &OS, const MCInstPrinter *Printer,
  73                          StringRef Separator) const {
  74   StringRef InstName = Printer ? Printer->getOpcodeName(getOpcode()) : "";
  75   dump_pretty(OS, InstName, Separator);
  76 }
  77
  78 void MCInst::dump_pretty(raw_ostream &OS, StringRef Name,
  79                          StringRef Separator) const {
  80   OS << "<MCInst #" << getOpcode();
  81
  82   // Show the instruction opcode name if we have it.
  83   if (!Name.empty())
  84     OS << ' ' << Name;
  85
  86   for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
  87     OS << Separator;
  88     getOperand(i).print(OS);
  89   }
  90   OS << ">";
  91 }
  92
  93 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  94 LLVM_DUMP_METHOD void MCInst::dump() const {
  95   print(dbgs());
  96   dbgs() << "\n";
  97 }
  98 #endif