diff --git a/llvm/lib/Target/M68k/CMakeLists.txt b/llvm/lib/Target/M68k/CMakeLists.txt
--- a/llvm/lib/Target/M68k/CMakeLists.txt
+++ b/llvm/lib/Target/M68k/CMakeLists.txt
@@ -7,7 +7,6 @@
 tablegen(LLVM M68kGenRegisterBank.inc     -gen-register-bank)
 tablegen(LLVM M68kGenInstrInfo.inc        -gen-instr-info)
 tablegen(LLVM M68kGenSubtargetInfo.inc    -gen-subtarget)
-tablegen(LLVM M68kGenMCCodeBeads.inc      -gen-code-beads)
 tablegen(LLVM M68kGenMCCodeEmitter.inc    -gen-emitter)
 tablegen(LLVM M68kGenMCPseudoLowering.inc -gen-pseudo-lowering)
 tablegen(LLVM M68kGenDAGISel.inc          -gen-dag-isel)
diff --git a/llvm/lib/Target/M68k/M68kInstrInfo.cpp b/llvm/lib/Target/M68k/M68kInstrInfo.cpp
--- a/llvm/lib/Target/M68k/M68kInstrInfo.cpp
+++ b/llvm/lib/Target/M68k/M68kInstrInfo.cpp
@@ -26,6 +26,7 @@
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/MC/TargetRegistry.h"
 #include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/Regex.h"
 
 #include <functional>
 
@@ -601,40 +602,26 @@
 bool M68kInstrInfo::isPCRelRegisterOperandLegal(
     const MachineOperand &MO) const {
   assert(MO.isReg());
-  const auto *MI = MO.getParent();
-  const uint8_t *Beads = M68k::getMCInstrBeads(MI->getOpcode());
-  assert(*Beads);
-
-  // Only addressing mode k has (non-pc) register with PCRel
-  // So we're looking for EA Beads equal to
-  // `3Bits<011>_1Bit<1>_2Bits<11>`
-  // FIXME: There is an important caveat and two assumptions
-  // here: The caveat is that EA encoding always sit on the LSB.
-  // Where the assumptions are that if there are more than one
-  // operands, the EA encoding for the source operand always sit
-  // on the LSB. At the same time, k addressing mode can not be used
-  // on destination operand.
-  // The last assumption is kinda dirty so we need to find a way around
-  // it
-  const uint8_t EncEAk[3] = {0b011, 0b1, 0b11};
-  for (const uint8_t Pat : EncEAk) {
-    uint8_t Bead = *(Beads++);
-    if (!Bead)
-      return false;
 
-    switch (Bead & 0xF) {
-    default:
-      return false;
-    case M68kBeads::Bits1:
-    case M68kBeads::Bits2:
-    case M68kBeads::Bits3: {
-      uint8_t Val = (Bead & 0xF0) >> 4;
-      if (Val != Pat)
-        return false;
-    }
-    }
-  }
-  return true;
+  // Check whether this MO belongs to an instruction with addressing mode 'k',
+  // Refer to TargetInstrInfo.h for more information about this function.
+
+  const MachineInstr *MI = MO.getParent();
+  const unsigned NameIndices = M68kInstrNameIndices[MI->getOpcode()];
+  StringRef InstrName(&M68kInstrNameData[NameIndices]);
+  const unsigned OperandNo = MI->getOperandNo(&MO);
+
+  // If this machine operand is the 2nd operand, then check
+  // whether the instruction has destination addressing mode 'k'.
+  if (OperandNo == 1)
+    return Regex("[A-Z]+(8|16|32)k[a-z](_TC)?$").match(InstrName);
+
+  // If this machine operand is the last one, then check
+  // whether the instruction has source addressing mode 'k'.
+  if (OperandNo == MI->getNumExplicitOperands() - 1)
+    return Regex("[A-Z]+(8|16|32)[a-z]k(_TC)?$").match(InstrName);
+
+  return false;
 }
 
 void M68kInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
diff --git a/llvm/lib/Target/M68k/MCTargetDesc/M68kMCCodeEmitter.cpp b/llvm/lib/Target/M68k/MCTargetDesc/M68kMCCodeEmitter.cpp
--- a/llvm/lib/Target/M68k/MCTargetDesc/M68kMCCodeEmitter.cpp
+++ b/llvm/lib/Target/M68k/MCTargetDesc/M68kMCCodeEmitter.cpp
@@ -65,26 +65,6 @@
 
   ~M68kMCCodeEmitter() override {}
 
-  // TableGen'erated function
-  const uint8_t *getGenInstrBeads(const MCInst &MI) const {
-    return M68k::getMCInstrBeads(MI.getOpcode());
-  }
-
-  unsigned encodeBits(unsigned ThisByte, uint8_t Bead, const MCInst &MI,
-                      const MCInstrDesc &Desc, uint64_t &Buffer,
-                      unsigned Offset, SmallVectorImpl<MCFixup> &Fixups,
-                      const MCSubtargetInfo &STI) const;
-
-  unsigned encodeReg(unsigned ThisByte, uint8_t Bead, const MCInst &MI,
-                     const MCInstrDesc &Desc, uint64_t &Buffer, unsigned Offset,
-                     SmallVectorImpl<MCFixup> &Fixups,
-                     const MCSubtargetInfo &STI) const;
-
-  unsigned encodeImm(unsigned ThisByte, uint8_t Bead, const MCInst &MI,
-                     const MCInstrDesc &Desc, uint64_t &Buffer, unsigned Offset,
-                     SmallVectorImpl<MCFixup> &Fixups,
-                     const MCSubtargetInfo &STI) const;
-
   void encodeInstruction(const MCInst &MI, raw_ostream &OS,
                          SmallVectorImpl<MCFixup> &Fixups,
                          const MCSubtargetInfo &STI) const override;
@@ -237,246 +217,6 @@
   }
 }
 
-unsigned M68kMCCodeEmitter::encodeBits(unsigned ThisByte, uint8_t Bead,
-                                       const MCInst &MI,
-                                       const MCInstrDesc &Desc,
-                                       uint64_t &Buffer, unsigned Offset,
-                                       SmallVectorImpl<MCFixup> &Fixups,
-                                       const MCSubtargetInfo &STI) const {
-  unsigned Num = 0;
-  switch (Bead & 0xF) {
-  case M68kBeads::Bits1:
-    Num = 1;
-    break;
-  case M68kBeads::Bits2:
-    Num = 2;
-    break;
-  case M68kBeads::Bits3:
-    Num = 3;
-    break;
-  case M68kBeads::Bits4:
-    Num = 4;
-    break;
-  }
-  unsigned char Val = (Bead & 0xF0) >> 4;
-
-  LLVM_DEBUG(dbgs() << "\tEncodeBits"
-                    << " Num: " << Num << " Val: 0x");
-  LLVM_DEBUG(dbgs().write_hex(Val) << "\n");
-
-  Buffer |= (Val << Offset);
-
-  return Num;
-}
-
-unsigned M68kMCCodeEmitter::encodeReg(unsigned ThisByte, uint8_t Bead,
-                                      const MCInst &MI, const MCInstrDesc &Desc,
-                                      uint64_t &Buffer, unsigned Offset,
-                                      SmallVectorImpl<MCFixup> &Fixups,
-                                      const MCSubtargetInfo &STI) const {
-  bool DA, Reg;
-  switch (Bead & 0xF) {
-  default:
-    llvm_unreachable("Unrecognized Bead code for register type");
-  case M68kBeads::DAReg:
-    Reg = true;
-    DA = true;
-    break;
-  case M68kBeads::DA:
-    Reg = false;
-    DA = true;
-    break;
-  case M68kBeads::DReg:
-  case M68kBeads::Reg:
-    Reg = true;
-    DA = false;
-    break;
-  }
-
-  unsigned Op = (Bead & 0x70) >> 4;
-  bool Alt = (Bead & 0x80);
-  LLVM_DEBUG(dbgs() << "\tEncodeReg"
-                    << " Op: " << Op << ", DA: " << DA << ", Reg: " << Reg
-                    << ", Alt: " << Alt << "\n");
-
-  auto MIOpIdx = M68k::getLogicalOperandIdx(MI.getOpcode(), Op);
-  bool IsPCRel = Desc.OpInfo[MIOpIdx].OperandType == MCOI::OPERAND_PCREL;
-
-  MCOperand MCO;
-  if (M68kII::hasMultiMIOperands(MI.getOpcode(), Op)) {
-    if (IsPCRel) {
-      assert(Alt &&
-             "PCRel addresses use Alt bead register encoding by default");
-      MCO = MI.getOperand(MIOpIdx + M68k::PCRelIndex);
-    } else {
-      MCO = MI.getOperand(MIOpIdx + (Alt ? M68k::MemIndex : M68k::MemBase));
-    }
-  } else {
-    assert(!Alt && "You cannot use Alt register with a simple operand");
-    MCO = MI.getOperand(MIOpIdx);
-  }
-
-  unsigned RegNum = MCO.getReg();
-  auto RI = Ctx.getRegisterInfo();
-
-  unsigned Written = 0;
-  if (Reg) {
-    uint32_t Val = RI->getEncodingValue(RegNum);
-    Buffer |= (Val & 7) << Offset;
-    Offset += 3;
-    Written += 3;
-  }
-
-  if (DA) {
-    Buffer |= (uint64_t)M68kII::isAddressRegister(RegNum) << Offset;
-    Written++;
-  }
-
-  return Written;
-}
-
-static unsigned EmitConstant(uint64_t Val, unsigned Size, unsigned Pad,
-                             uint64_t &Buffer, unsigned Offset) {
-  assert(Size + Offset <= 64 && isUIntN(Size, Val) && "Value does not fit");
-
-  // Writing Value in host's endianness
-  Buffer |= (Val & ((1ULL << Size) - 1)) << Offset;
-  return Size + Pad;
-}
-
-unsigned M68kMCCodeEmitter::encodeImm(unsigned ThisByte, uint8_t Bead,
-                                      const MCInst &MI, const MCInstrDesc &Desc,
-                                      uint64_t &Buffer, unsigned Offset,
-                                      SmallVectorImpl<MCFixup> &Fixups,
-                                      const MCSubtargetInfo &STI) const {
-  unsigned ThisWord = ThisByte / 2;
-  unsigned Size = 0;
-  unsigned Pad = 0;
-  unsigned FixOffset = 0;
-  int64_t Addendum = 0;
-  bool NoExpr = false;
-
-  unsigned Type = Bead & 0xF;
-  unsigned Op = (Bead & 0x70) >> 4;
-  bool Alt = (Bead & 0x80);
-
-  auto MIOpIdx = M68k::getLogicalOperandIdx(MI.getOpcode(), Op);
-  bool IsPCRel = Desc.OpInfo[MIOpIdx].OperandType == MCOI::OPERAND_PCREL;
-
-  // The PC value upon instruction reading of a short jump will point to the
-  // next instruction, thus we need to compensate 2 bytes, which is the diff
-  // between the patch point and the PC.
-  if (IsPCRel && ThisWord == 0)
-    Addendum -= 2;
-
-  switch (Type) {
-  // ??? what happens if it is not byte aligned
-  // ??? is it even possible
-  case M68kBeads::Disp8:
-    Size = 8;
-    Pad = 0;
-    FixOffset = ThisByte + 1;
-    Addendum += 1;
-    break;
-  case M68kBeads::Imm8:
-    Size = 8;
-    Pad = 8;
-    FixOffset = ThisByte;
-    break;
-  case M68kBeads::Imm16:
-    Size = 16;
-    Pad = 0;
-    FixOffset = ThisByte;
-    break;
-  case M68kBeads::Imm32:
-    Size = 32;
-    Pad = 0;
-    FixOffset = ThisByte;
-    break;
-  case M68kBeads::Imm3:
-    Size = 3;
-    Pad = 0;
-    NoExpr = true;
-    break;
-  }
-
-  LLVM_DEBUG(dbgs() << "\tEncodeImm"
-                    << " Op: " << Op << ", Size: " << Size << ", Alt: " << Alt
-                    << "\n");
-
-  MCOperand MCO;
-  if (M68kII::hasMultiMIOperands(MI.getOpcode(), Op)) {
-
-    if (IsPCRel) {
-      assert(!Alt && "You cannot use ALT operand with PCRel");
-      MCO = MI.getOperand(MIOpIdx + M68k::PCRelDisp);
-    } else {
-      MCO = MI.getOperand(MIOpIdx + (Alt ? M68k::MemOuter : M68k::MemDisp));
-    }
-
-    if (MCO.isExpr()) {
-      assert(!NoExpr && "Cannot use expression here");
-      const MCExpr *Expr = MCO.getExpr();
-
-      // This only makes sense for PCRel instructions since PC points to the
-      // extension word and Disp8 for example is right justified and requires
-      // correction. E.g. R_68K_PC32 is calculated as S + A - P, P for Disp8
-      // will be EXTENSION_WORD + 1 thus we need to have A equal to 1 to
-      // compensate.
-      // TODO count extension words
-      if (IsPCRel && Addendum != 0) {
-        Expr = MCBinaryExpr::createAdd(
-            Expr, MCConstantExpr::create(Addendum, Ctx), Ctx);
-      }
-
-      Fixups.push_back(MCFixup::create(
-          FixOffset, Expr, getFixupForSize(Size, IsPCRel), MI.getLoc()));
-      // Write zeros
-      return EmitConstant(0, Size, Pad, Buffer, Offset);
-    }
-
-  } else {
-    MCO = MI.getOperand(MIOpIdx);
-    if (MCO.isExpr()) {
-      assert(!NoExpr && "Cannot use expression here");
-      const MCExpr *Expr = MCO.getExpr();
-
-      if (Addendum != 0) {
-        Expr = MCBinaryExpr::createAdd(
-            Expr, MCConstantExpr::create(Addendum, Ctx), Ctx);
-      }
-
-      Fixups.push_back(MCFixup::create(
-          FixOffset, Expr, getFixupForSize(Size, IsPCRel), MI.getLoc()));
-      // Write zeros
-      return EmitConstant(0, Size, Pad, Buffer, Offset);
-    }
-  }
-
-  int64_t I = MCO.getImm();
-
-  // Store 8 as 0, thus making range 1-8
-  if (Type == M68kBeads::Imm3 && Alt) {
-    assert(I && "Cannot encode Alt Imm3 zero value");
-    I %= 8;
-  } else {
-    assert(isIntN(Size, I));
-  }
-
-  uint64_t Imm = I;
-
-  // 32 bit Imm requires HI16 first then LO16
-  if (Size == 32) {
-    Offset += EmitConstant((Imm >> 16) & 0xFFFF, 16, Pad, Buffer, Offset);
-    EmitConstant(Imm & 0xFFFF, 16, Pad, Buffer, Offset);
-    return Size;
-  }
-
-  return EmitConstant(Imm & ((1ULL << Size) - 1), Size, Pad, Buffer, Offset);
-}
-
-#include "M68kGenMCCodeBeads.inc"
-
 void M68kMCCodeEmitter::encodeInstruction(const MCInst &MI, raw_ostream &OS,
                                           SmallVectorImpl<MCFixup> &Fixups,
                                           const MCSubtargetInfo &STI) const {
@@ -490,79 +230,16 @@
   APInt EncodedInst(16, 0U);
   APInt Scratch(16, 0U);
   getBinaryCodeForInstr(MI, Fixups, EncodedInst, Scratch, STI);
-  if (EncodedInst.getBitWidth()) {
-    LLVM_DEBUG(dbgs() << "Instruction " << MCII.getName(Opcode) << "(" << Opcode
-                      << ") is using the new code emitter\n");
-    ArrayRef<uint64_t> Data(EncodedInst.getRawData(),
-                            EncodedInst.getNumWords());
-    int64_t InstSize = EncodedInst.getBitWidth();
-    for (uint64_t Word : Data) {
-      for (int i = 0; i < 4 && InstSize > 0; ++i, InstSize -= 16) {
-        support::endian::write<uint16_t>(OS, static_cast<uint16_t>(Word),
-                                         support::big);
-        Word >>= 16;
-      }
-    }
-    return;
-  }
-
-  const uint8_t *Beads = getGenInstrBeads(MI);
-  if (!Beads || !*Beads) {
-    llvm_unreachable("*** Instruction does not have Beads defined");
-  }
 
-  uint64_t Buffer = 0;
-  unsigned Offset = 0;
-  unsigned ThisByte = 0;
-
-  for (uint8_t Bead = *Beads; Bead; Bead = *++Beads) {
-    // Check for control beads
-    if (!(Bead & 0xF)) {
-      switch (Bead >> 4) {
-      case M68kBeads::Ignore:
-        continue;
-      }
-    }
-
-    switch (Bead & 0xF) {
-    default:
-      llvm_unreachable("Unknown Bead code");
-      break;
-    case M68kBeads::Bits1:
-    case M68kBeads::Bits2:
-    case M68kBeads::Bits3:
-    case M68kBeads::Bits4:
-      Offset +=
-          encodeBits(ThisByte, Bead, MI, Desc, Buffer, Offset, Fixups, STI);
-      break;
-    case M68kBeads::DAReg:
-    case M68kBeads::DA:
-    case M68kBeads::DReg:
-    case M68kBeads::Reg:
-      Offset +=
-          encodeReg(ThisByte, Bead, MI, Desc, Buffer, Offset, Fixups, STI);
-      break;
-    case M68kBeads::Disp8:
-    case M68kBeads::Imm8:
-    case M68kBeads::Imm16:
-    case M68kBeads::Imm32:
-    case M68kBeads::Imm3:
-      Offset +=
-          encodeImm(ThisByte, Bead, MI, Desc, Buffer, Offset, Fixups, STI);
-      break;
-    }
-
-    // Since M68k is Big Endian we need to rotate each instruction word
-    while (Offset / 16) {
-      support::endian::write<uint16_t>(OS, Buffer, support::big);
-      Buffer >>= 16;
-      Offset -= 16;
-      ThisByte += 2;
+  ArrayRef<uint64_t> Data(EncodedInst.getRawData(), EncodedInst.getNumWords());
+  int64_t InstSize = EncodedInst.getBitWidth();
+  for (uint64_t Word : Data) {
+    for (int i = 0; i < 4 && InstSize > 0; ++i, InstSize -= 16) {
+      support::endian::write<uint16_t>(OS, static_cast<uint16_t>(Word),
+                                       support::big);
+      Word >>= 16;
     }
   }
-
-  assert(Offset == 0 && "M68k Instructions are % 2 bytes");
-  assert((ThisByte && !(ThisByte % 2)) && "M68k Instructions are % 2 bytes");
 }
 
 MCCodeEmitter *llvm::createM68kMCCodeEmitter(const MCInstrInfo &MCII,
diff --git a/llvm/test/CodeGen/M68k/is-pcrel-register-operand-legal.mir b/llvm/test/CodeGen/M68k/is-pcrel-register-operand-legal.mir
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/M68k/is-pcrel-register-operand-legal.mir
@@ -0,0 +1,10 @@
+# RUN: llc -O0 -mtriple=m68k -start-after=prologepilog -verify-machineinstrs %s -o - | FileCheck %s
+
+name: is-pcrel-register-operand-legal
+body:             |
+  bb.0.entry:
+    ; CHECK: move.l  (0,%pc,%a0), (%a1)
+    ; CHECK: move.l  (%a0), (0,%pc,%a1)
+
+    MOV32jk $a1,  0, $a0, implicit-def $ccr
+    MOV32kj 0,  $a1, $a0, implicit-def $ccr
\ No newline at end of file
diff --git a/llvm/utils/TableGen/CMakeLists.txt b/llvm/utils/TableGen/CMakeLists.txt
--- a/llvm/utils/TableGen/CMakeLists.txt
+++ b/llvm/utils/TableGen/CMakeLists.txt
@@ -8,7 +8,6 @@
   AsmWriterInst.cpp
   Attributes.cpp
   CallingConvEmitter.cpp
-  CodeBeadsGen.cpp
   CodeEmitterGen.cpp
   CodeGenDAGPatterns.cpp
   CodeGenHwModes.cpp
diff --git a/llvm/utils/TableGen/CodeBeadsGen.cpp b/llvm/utils/TableGen/CodeBeadsGen.cpp
deleted file mode 100644
--- a/llvm/utils/TableGen/CodeBeadsGen.cpp
+++ /dev/null
@@ -1,135 +0,0 @@
-//===---------- CodeBeadsGen.cpp - Code Beads Generator -------------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-// CodeBeads are data fields carrying auxiliary information for instructions.
-//
-// Under the hood it's simply implemented by a `bits` field (with arbitrary
-// length) in each TG instruction description, where this TG backend will
-// generate a helper function to access it.
-//
-// This is especially useful for expressing variable length encoding
-// instructions and complex addressing modes. Since in those cases each
-// instruction is usually associated with large amount of information like
-// addressing mode details used on a specific operand. Instead of retreating to
-// ad-hoc methods to figure out these information when encoding an instruction,
-// CodeBeads provide a clean table for the instruction encoder to lookup.
-//===----------------------------------------------------------------------===//
-
-#include "CodeGenInstruction.h"
-#include "CodeGenTarget.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/TableGen/Error.h"
-#include "llvm/TableGen/Record.h"
-#include "llvm/TableGen/TableGenBackend.h"
-#include <vector>
-using namespace llvm;
-
-namespace {
-
-class CodeBeadsGen {
-  RecordKeeper &Records;
-
-public:
-  CodeBeadsGen(RecordKeeper &R) : Records(R) {}
-  void run(raw_ostream &OS);
-};
-
-void CodeBeadsGen::run(raw_ostream &OS) {
-  CodeGenTarget Target(Records);
-  std::vector<Record *> Insts = Records.getAllDerivedDefinitions("Instruction");
-
-  // For little-endian instruction bit encodings, reverse the bit order
-  Target.reverseBitsForLittleEndianEncoding();
-
-  ArrayRef<const CodeGenInstruction *> NumberedInstructions =
-      Target.getInstructionsByEnumValue();
-
-  // Emit function declaration
-  OS << "const uint8_t *llvm::" << Target.getInstNamespace();
-  OS << "::getMCInstrBeads(unsigned Opcode) {\n";
-
-  // First, get the maximum bit length among all beads. And do some
-  // simple validation
-  unsigned MaxBitLength = 0;
-
-  for (const CodeGenInstruction *CGI : NumberedInstructions) {
-    Record *R = CGI->TheDef;
-    if (!R->getValue("Beads"))
-      continue;
-
-    BitsInit *BI = R->getValueAsBitsInit("Beads");
-    if (!BI->isComplete()) {
-      PrintFatalError(R->getLoc(), "Record `" + R->getName() +
-                                       "', bit field 'Beads' is not complete");
-    }
-
-    MaxBitLength = std::max(MaxBitLength, BI->getNumBits());
-  }
-
-  // Number of bytes
-  unsigned Parts = MaxBitLength / 8;
-
-  // Emit instruction base values
-  OS << "  static const uint8_t InstBits[][" << Parts << "] = {\n";
-  for (const CodeGenInstruction *CGI : NumberedInstructions) {
-    Record *R = CGI->TheDef;
-
-    if (R->getValueAsString("Namespace") == "TargetOpcode" ||
-        !R->getValue("Beads")) {
-      OS << "\t{ 0x0 },\t// ";
-      if (R->getValueAsBit("isPseudo"))
-        OS << "(Pseudo) ";
-      OS << R->getName() << "\n";
-      continue;
-    }
-
-    BitsInit *BI = R->getValueAsBitsInit("Beads");
-
-    // Convert to byte array:
-    // [dcba] -> [a][b][c][d]
-    OS << "\t{";
-    for (unsigned p = 0; p < Parts; ++p) {
-      unsigned Right = 8 * p;
-      unsigned Left = Right + 8;
-
-      uint8_t Value = 0;
-      for (unsigned i = Right; i != Left; ++i) {
-        unsigned Shift = i % 8;
-        if (auto *B = dyn_cast<BitInit>(BI->getBit(i))) {
-          Value |= (static_cast<uint8_t>(B->getValue()) << Shift);
-        } else {
-          PrintFatalError(R->getLoc(), "Record `" + R->getName() +
-                                           "', bit 'Beads[" + Twine(i) +
-                                           "]' is not defined");
-        }
-      }
-
-      if (p)
-        OS << ',';
-      OS << " 0x";
-      OS.write_hex(Value);
-      OS << "";
-    }
-    OS << " }," << '\t' << "// " << R->getName() << "\n";
-  }
-  OS << "\t{ 0x0 }\n  };\n";
-
-  // Emit initial function code
-  OS << "  return InstBits[Opcode];\n"
-     << "}\n\n";
-}
-
-} // End anonymous namespace
-
-namespace llvm {
-
-void EmitCodeBeads(RecordKeeper &RK, raw_ostream &OS) {
-  emitSourceFileHeader("Machine Code Beads", OS);
-  CodeBeadsGen(RK).run(OS);
-}
-
-} // namespace llvm
diff --git a/llvm/utils/TableGen/TableGen.cpp b/llvm/utils/TableGen/TableGen.cpp
--- a/llvm/utils/TableGen/TableGen.cpp
+++ b/llvm/utils/TableGen/TableGen.cpp
@@ -25,7 +25,6 @@
   NullBackend,
   DumpJSON,
   GenEmitter,
-  GenCodeBeads,
   GenRegisterInfo,
   GenInstrInfo,
   GenInstrDocs,
@@ -82,8 +81,6 @@
         clEnumValN(DumpJSON, "dump-json",
                    "Dump all records as machine-readable JSON"),
         clEnumValN(GenEmitter, "gen-emitter", "Generate machine code emitter"),
-        clEnumValN(GenCodeBeads, "gen-code-beads",
-                   "Generate machine code beads"),
         clEnumValN(GenRegisterInfo, "gen-register-info",
                    "Generate registers and register classes info"),
         clEnumValN(GenInstrInfo, "gen-instr-info",
@@ -164,9 +161,6 @@
   case GenEmitter:
     EmitCodeEmitter(Records, OS);
     break;
-  case GenCodeBeads:
-    EmitCodeBeads(Records, OS);
-    break;
   case GenRegisterInfo:
     EmitRegisterInfo(Records, OS);
     break;
diff --git a/llvm/utils/TableGen/TableGenBackends.h b/llvm/utils/TableGen/TableGenBackends.h
--- a/llvm/utils/TableGen/TableGenBackends.h
+++ b/llvm/utils/TableGen/TableGenBackends.h
@@ -67,7 +67,6 @@
 void EmitAsmWriter(RecordKeeper &RK, raw_ostream &OS);
 void EmitCallingConv(RecordKeeper &RK, raw_ostream &OS);
 void EmitCodeEmitter(RecordKeeper &RK, raw_ostream &OS);
-void EmitCodeBeads(RecordKeeper &RK, raw_ostream &OS);
 void EmitDAGISel(RecordKeeper &RK, raw_ostream &OS);
 void EmitDFAPacketizer(RecordKeeper &RK, raw_ostream &OS);
 void EmitDisassembler(RecordKeeper &RK, raw_ostream &OS);