1 files changed, 0 insertions, 171 deletions
diff --git a/lib/Target/MBlaze/MCTargetDesc/MBlazeAsmBackend.cpp b/lib/Target/MBlaze/MCTargetDesc/MBlazeAsmBackend.cpp
deleted file mode 100644
index 6f9752c42951..000000000000
--- a/lib/Target/MBlaze/MCTargetDesc/MBlazeAsmBackend.cpp
+++ /dev/null
@@ -1,171 +0,0 @@
-//===-- MBlazeAsmBackend.cpp - MBlaze Assembler Backend -------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MCTargetDesc/MBlazeMCTargetDesc.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/MC/MCAsmBackend.h"
-#include "llvm/MC/MCAsmLayout.h"
-#include "llvm/MC/MCAssembler.h"
-#include "llvm/MC/MCELFObjectWriter.h"
-#include "llvm/MC/MCELFSymbolFlags.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCObjectWriter.h"
-#include "llvm/MC/MCSectionELF.h"
-#include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCValue.h"
-#include "llvm/Support/ELF.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/TargetRegistry.h"
-#include "llvm/Support/raw_ostream.h"
-using namespace llvm;
-
-static unsigned getFixupKindSize(unsigned Kind) {
-  switch (Kind) {
-  default: llvm_unreachable("invalid fixup kind!");
-  case FK_Data_1: return 1;
-  case FK_PCRel_2:
-  case FK_Data_2: return 2;
-  case FK_PCRel_4:
-  case FK_Data_4: return 4;
-  case FK_Data_8: return 8;
-  }
-}
-
-
-namespace {
-
-class MBlazeAsmBackend : public MCAsmBackend {
-public:
-  MBlazeAsmBackend(const Target &T)
-    : MCAsmBackend() {
-  }
-
-  unsigned getNumFixupKinds() const {
-    return 2;
-  }
-
-  bool mayNeedRelaxation(const MCInst &Inst) const;
-
-  bool fixupNeedsRelaxation(const MCFixup &Fixup,
-                            uint64_t Value,
-                            const MCRelaxableFragment *DF,
-                            const MCAsmLayout &Layout) const;
-
-  void relaxInstruction(const MCInst &Inst, MCInst &Res) const;
-
-  bool writeNopData(uint64_t Count, MCObjectWriter *OW) const;
-
-  unsigned getPointerSize() const {
-    return 4;
-  }
-};
-
-static unsigned getRelaxedOpcode(unsigned Op) {
-    switch (Op) {
-    default:            return Op;
-    case MBlaze::ADDIK: return MBlaze::ADDIK32;
-    case MBlaze::ORI:   return MBlaze::ORI32;
-    case MBlaze::BRLID: return MBlaze::BRLID32;
-    }
-}
-
-bool MBlazeAsmBackend::mayNeedRelaxation(const MCInst &Inst) const {
-  if (getRelaxedOpcode(Inst.getOpcode()) == Inst.getOpcode())
-    return false;
-
-  bool hasExprOrImm = false;
-  for (unsigned i = 0; i < Inst.getNumOperands(); ++i)
-    hasExprOrImm |= Inst.getOperand(i).isExpr();
-
-  return hasExprOrImm;
-}
-
-bool MBlazeAsmBackend::fixupNeedsRelaxation(const MCFixup &Fixup,
-                                            uint64_t Value,
-                                            const MCRelaxableFragment *DF,
-                                            const MCAsmLayout &Layout) const {
-  // FIXME: Is this right? It's what the "generic" code was doing before,
-  // but is X86 specific. Is it actually true for MBlaze also, or was it
-  // just close enough to not be a big deal?
-  //
-  // Relax if the value is too big for a (signed) i8.
-  return int64_t(Value) != int64_t(int8_t(Value));
-}
-
-void MBlazeAsmBackend::relaxInstruction(const MCInst &Inst, MCInst &Res) const {
-  Res = Inst;
-  Res.setOpcode(getRelaxedOpcode(Inst.getOpcode()));
-}
-
-bool MBlazeAsmBackend::writeNopData(uint64_t Count, MCObjectWriter *OW) const {
-  if ((Count % 4) != 0)
-    return false;
-
-  for (uint64_t i = 0; i < Count; i += 4)
-      OW->Write32(0x00000000);
-
-  return true;
-}
-} // end anonymous namespace
-
-namespace {
-class ELFMBlazeAsmBackend : public MBlazeAsmBackend {
-public:
-  uint8_t OSABI;
-  ELFMBlazeAsmBackend(const Target &T, uint8_t _OSABI)
-    : MBlazeAsmBackend(T), OSABI(_OSABI) { }
-
-  void applyFixup(const MCFixup &Fixup, char *Data, unsigned DataSize,
-                  uint64_t Value) const;
-
-  MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
-    return createMBlazeELFObjectWriter(OS, OSABI);
-  }
-};
-
-void ELFMBlazeAsmBackend::applyFixup(const MCFixup &Fixup, char *Data,
-                                     unsigned DataSize, uint64_t Value) const {
-  unsigned Size = getFixupKindSize(Fixup.getKind());
-
-  assert(Fixup.getOffset() + Size <= DataSize &&
-         "Invalid fixup offset!");
-
-  char *data = Data + Fixup.getOffset();
-  switch (Size) {
-  default: llvm_unreachable("Cannot fixup unknown value.");
-  case 1:  llvm_unreachable("Cannot fixup 1 byte value.");
-  case 8:  llvm_unreachable("Cannot fixup 8 byte value.");
-
-  case 4:
-    *(data+7) = uint8_t(Value);
-    *(data+6) = uint8_t(Value >> 8);
-    *(data+3) = uint8_t(Value >> 16);
-    *(data+2) = uint8_t(Value >> 24);
-    break;
-
-  case 2:
-    *(data+3) = uint8_t(Value >> 0);
-    *(data+2) = uint8_t(Value >> 8);
-  }
-}
-} // end anonymous namespace
-
-MCAsmBackend *llvm::createMBlazeAsmBackend(const Target &T, StringRef TT,
-                                           StringRef CPU) {
-  Triple TheTriple(TT);
-
-  if (TheTriple.isOSDarwin())
-    assert(0 && "Mac not supported on MBlaze");
-
-  if (TheTriple.isOSWindows())
-    assert(0 && "Windows not supported on MBlaze");
-
-  uint8_t OSABI = MCELFObjectTargetWriter::getOSABI(TheTriple.getOS());
-  return new ELFMBlazeAsmBackend(T, OSABI);
-}