llvm/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/MC/MCRegisterInfo.h"
  14 #include "llvm/Support/Casting.h"
  15 #include "llvm/Support/Compiler.h"
  16 #include "llvm/Support/Debug.h"
  17 #include "llvm/Support/raw_ostream.h"
  18
  19 using namespace llvm;
  20
  21 void MCOperand::print(raw_ostream &OS, const MCRegisterInfo *RegInfo) const {
  22   OS << "<MCOperand ";
  23   if (!isValid())
  24     OS << "INVALID";
  25   else if (isReg()) {
  26     OS << "Reg:";
  27     if (RegInfo)
  28       OS << RegInfo->getName(getReg());
  29     else
  30       OS << getReg();
  31   } else if (isImm())
  32     OS << "Imm:" << getImm();
  33   else if (isSFPImm())
  34     OS << "SFPImm:" << bit_cast<float>(getSFPImm());
  35   else if (isDFPImm())
  36     OS << "DFPImm:" << bit_cast<double>(getDFPImm());
  37   else if (isExpr()) {
  38     OS << "Expr:(" << *getExpr() << ")";
  39   } else if (isInst()) {
  40     OS << "Inst:(";
  41     getInst()->print(OS, RegInfo);
  42     OS << ")";
  43   } else
  44     OS << "UNDEFINED";
  45   OS << ">";
  46 }
  47
  48 bool MCOperand::evaluateAsConstantImm(int64_t &Imm) const {
  49   if (isImm()) {
  50     Imm = getImm();
  51     return true;
  52   }
  53   return false;
  54 }
  55
  56 bool MCOperand::isBareSymbolRef() const {
  57   assert(isExpr() &&
  58          "isBareSymbolRef expects only expressions");
  59   const MCExpr *Expr = getExpr();
  60   MCExpr::ExprKind Kind = getExpr()->getKind();
  61   return Kind == MCExpr::SymbolRef &&
  62     cast<MCSymbolRefExpr>(Expr)->getKind() == MCSymbolRefExpr::VK_None;
  63 }
  64
  65 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  66 LLVM_DUMP_METHOD void MCOperand::dump() const {
  67   print(dbgs());
  68   dbgs() << "\n";
  69 }
  70 #endif
  71
  72 void MCInst::print(raw_ostream &OS, const MCRegisterInfo *RegInfo) const {
  73   OS << "<MCInst " << getOpcode();
  74   for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
  75     OS << " ";
  76     getOperand(i).print(OS, RegInfo);
  77   }
  78   OS << ">";
  79 }
  80
  81 void MCInst::dump_pretty(raw_ostream &OS, const MCInstPrinter *Printer,
  82                          StringRef Separator,
  83                          const MCRegisterInfo *RegInfo) const {
  84   StringRef InstName = Printer ? Printer->getOpcodeName(getOpcode()) : "";
  85   dump_pretty(OS, InstName, Separator, RegInfo);
  86 }
  87
  88 void MCInst::dump_pretty(raw_ostream &OS, StringRef Name, StringRef Separator,
  89                          const MCRegisterInfo *RegInfo) const {
  90   OS << "<MCInst #" << getOpcode();
  91
  92   // Show the instruction opcode name if we have it.
  93   if (!Name.empty())
  94     OS << ' ' << Name;
  95
  96   for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
  97     OS << Separator;
  98     getOperand(i).print(OS, RegInfo);
  99   }
 100   OS << ">";
 101 }
 102
 103 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
 104 LLVM_DUMP_METHOD void MCInst::dump() const {
 105   print(dbgs());
 106   dbgs() << "\n";
 107 }
 108 #endif