1 files changed, 0 insertions, 235 deletions
diff --git a/lib/Target/MBlaze/MBlazeMCCodeEmitter.cpp b/lib/Target/MBlaze/MBlazeMCCodeEmitter.cpp
deleted file mode 100644
index fec147decd..0000000000
--- a/lib/Target/MBlaze/MBlazeMCCodeEmitter.cpp
+++ /dev/null
@@ -1,235 +0,0 @@
-//===-- MBlazeMCCodeEmitter.cpp - Convert MBlaze code to machine code -----===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the MBlazeMCCodeEmitter class.
-//
-//===----------------------------------------------------------------------===//
-
-#define DEBUG_TYPE "mblaze-emitter"
-#include "MBlaze.h"
-#include "MBlazeInstrInfo.h"
-#include "MBlazeFixupKinds.h"
-#include "llvm/MC/MCCodeEmitter.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCFixup.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/Support/raw_ostream.h"
-using namespace llvm;
-
-STATISTIC(MCNumEmitted, "Number of MC instructions emitted");
-
-namespace {
-class MBlazeMCCodeEmitter : public MCCodeEmitter {
-  MBlazeMCCodeEmitter(const MBlazeMCCodeEmitter &); // DO NOT IMPLEMENT
-  void operator=(const MBlazeMCCodeEmitter &); // DO NOT IMPLEMENT
-  const TargetMachine &TM;
-  const TargetInstrInfo &TII;
-  MCContext &Ctx;
-
-public:
-  MBlazeMCCodeEmitter(TargetMachine &tm, MCContext &ctx)
-    : TM(tm), TII(*TM.getInstrInfo()), Ctx(ctx) {
-  }
-
-  ~MBlazeMCCodeEmitter() {}
-
-  // getBinaryCodeForInstr - TableGen'erated function for getting the
-  // binary encoding for an instruction.
-  unsigned getBinaryCodeForInstr(const MCInst &MI) const;
-
-  /// getMachineOpValue - Return binary encoding of operand. If the machine
-  /// operand requires relocation, record the relocation and return zero.
-  unsigned getMachineOpValue(const MCInst &MI,const MCOperand &MO) const;
-  unsigned getMachineOpValue(const MCInst &MI, unsigned OpIdx) const {
-    return getMachineOpValue(MI, MI.getOperand(OpIdx));
-  }
-
-  unsigned getNumFixupKinds() const {
-    return 2;
-  }
-
-  const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const {
-    const static MCFixupKindInfo Infos[] = {
-      { "reloc_pcrel_4byte", 0, 4 * 8, MCFixupKindInfo::FKF_IsPCRel },
-      { "reloc_pcrel_2byte", 0, 2 * 8, MCFixupKindInfo::FKF_IsPCRel } };
-
-    if (Kind < FirstTargetFixupKind)
-      return MCCodeEmitter::getFixupKindInfo(Kind);
-
-    if (unsigned(Kind-FirstTargetFixupKind) < getNumFixupKinds())
-      return Infos[Kind - FirstTargetFixupKind];
-
-    assert(0 && "Invalid fixup kind.");
-    return Infos[0];
-  }
-
-  static unsigned GetMBlazeRegNum(const MCOperand &MO) {
-    // FIXME: getMBlazeRegisterNumbering() is sufficient?
-    assert(0 && "MBlazeMCCodeEmitter::GetMBlazeRegNum() not yet implemented.");
-    return 0;
-  }
-
-  void EmitByte(unsigned char C, unsigned &CurByte, raw_ostream &OS) const {
-    // The MicroBlaze uses a bit reversed format so we need to reverse the
-    // order of the bits. Taken from:
-    // http://graphics.stanford.edu/~seander/bithacks.html
-    C = ((C * 0x80200802ULL) & 0x0884422110ULL) * 0x0101010101ULL >> 32;
-
-    OS << (char)C;
-    ++CurByte;
-  }
-
-  void EmitRawByte(unsigned char C, unsigned &CurByte, raw_ostream &OS) const {
-    OS << (char)C;
-    ++CurByte;
-  }
-
-  void EmitConstant(uint64_t Val, unsigned Size, unsigned &CurByte,
-                    raw_ostream &OS) const {
-    assert(Size <= 8 && "size too big in emit constant" );
-
-    for (unsigned i = 0; i != Size; ++i) {
-      EmitByte(Val & 255, CurByte, OS);
-      Val >>= 8;
-    }
-  }
-
-  void EmitIMM(const MCOperand &imm, unsigned &CurByte, raw_ostream &OS) const;
-
-  void EmitImmediate(const MCInst &MI,
-                     unsigned opNo, MCFixupKind FixupKind,
-                     unsigned &CurByte, raw_ostream &OS,
-                     SmallVectorImpl<MCFixup> &Fixups) const;
-
-  void EncodeInstruction(const MCInst &MI, raw_ostream &OS,
-                         SmallVectorImpl<MCFixup> &Fixups) const;
-};
-
-} // end anonymous namespace
-
-
-MCCodeEmitter *llvm::createMBlazeMCCodeEmitter(const Target &,
-                                               TargetMachine &TM,
-                                               MCContext &Ctx) {
-  return new MBlazeMCCodeEmitter(TM, Ctx);
-}
-
-/// getMachineOpValue - Return binary encoding of operand. If the machine
-/// operand requires relocation, record the relocation and return zero.
-unsigned MBlazeMCCodeEmitter::getMachineOpValue(const MCInst &MI,
-                                             const MCOperand &MO) const {
-  if (MO.isReg())
-    return MBlazeRegisterInfo::getRegisterNumbering(MO.getReg());
-  else if (MO.isImm())
-    return static_cast<unsigned>(MO.getImm());
-  else if (MO.isExpr() )
-      return 0; // The relocation has already been recorded at this point.
-  else {
-#ifndef NDEBUG
-    errs() << MO;
-#endif
-    llvm_unreachable(0);
-  }
-  return 0;
-}
-
-void MBlazeMCCodeEmitter::
-EmitIMM(const MCOperand &imm, unsigned &CurByte, raw_ostream &OS) const {
-  int32_t val = (int32_t)imm.getImm();
-  if (val > 32767 || val < -32678 ) {
-    EmitByte(0x0D, CurByte, OS);
-    EmitByte(0x00, CurByte, OS);
-    EmitRawByte((val >> 24) & 0xFF, CurByte, OS);
-    EmitRawByte((val >> 16) & 0xFF, CurByte, OS);
-  }
-}
-
-void MBlazeMCCodeEmitter::
-EmitImmediate(const MCInst &MI, unsigned opNo, MCFixupKind FixupKind,
-              unsigned &CurByte, raw_ostream &OS,
-              SmallVectorImpl<MCFixup> &Fixups) const {
-  assert( MI.getNumOperands()>opNo && "Not enought operands for instruction" );
-
-  MCOperand oper = MI.getOperand(opNo);
-  if (oper.isImm()) {
-      EmitIMM( oper, CurByte, OS );
-  } else if (oper.isExpr()) {
-      Fixups.push_back(MCFixup::Create(0,oper.getExpr(),FixupKind));
-  }
-}
-
-void MBlazeMCCodeEmitter::
-EncodeInstruction(const MCInst &MI, raw_ostream &OS,
-                  SmallVectorImpl<MCFixup> &Fixups) const {
-  unsigned Opcode = MI.getOpcode();
-  const TargetInstrDesc &Desc = TII.get(Opcode);
-  uint64_t TSFlags = Desc.TSFlags;
-  // Keep track of the current byte being emitted.
-  unsigned CurByte = 0;
-
-  switch ((TSFlags & MBlazeII::FormMask)) {
-  default: break;
-  case MBlazeII::Pseudo:
-    // Pseudo instructions don't get encoded.
-    return;
-
-  case MBlazeII::RegRegImm:
-    EmitImmediate( MI, 2, FK_Data_4, CurByte, OS, Fixups );
-    break;
-
-  case MBlazeII::RegImmReg:
-    EmitImmediate( MI, 1, FK_Data_4, CurByte, OS, Fixups );
-    break;
-
-  case MBlazeII::RegImm:
-    EmitImmediate( MI, 1, MCFixupKind(MBlaze::reloc_pcrel_2byte), CurByte, OS,
-                   Fixups );
-    break;
-
-  case MBlazeII::Imm:
-    EmitImmediate( MI, 0, MCFixupKind(MBlaze::reloc_pcrel_4byte), CurByte, OS,
-                   Fixups );
-    break;
-  }
-
-  ++MCNumEmitted;  // Keep track of the # of mi's emitted
-  unsigned Value = getBinaryCodeForInstr(MI);
-  switch (Opcode) {
-  default:
-    EmitConstant(Value, 4, CurByte, OS);
-    break;
-
-  case MBlaze::BRI:
-  case MBlaze::BRAI:
-  case MBlaze::BRID:
-  case MBlaze::BRAID:
-  case MBlaze::BRLID:
-  case MBlaze::BRALID:
-    MCOperand op = MI.getOperand(0);
-    if (op.isExpr()) {
-        EmitByte(0x0D, CurByte, OS);
-        EmitByte(0x00, CurByte, OS);
-        EmitRawByte(0, CurByte, OS);
-        EmitRawByte(0, CurByte, OS);
-    }
-    EmitConstant(Value, 4, CurByte, OS);
-    break;
-  }
-}
-
-// FIXME: These #defines shouldn't be necessary. Instead, tblgen should
-// be able to generate code emitter helpers for either variant, like it
-// does for the AsmWriter.
-#define MBlazeCodeEmitter MBlazeMCCodeEmitter
-#define MachineInstr MCInst
-#include "MBlazeGenCodeEmitter.inc"
-#undef MBlazeCodeEmitter
-#undef MachineInstr