Remove TargetELFWriterInfo.

All the credit goes to Jan Voung for noticing it was dead!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166902 91177308-0d34-0410-b5e6-96231b3b80d8

22 files changed, 2 insertions, 719 deletions

diff --git a/lib/Target/ARM/ARMELFWriterInfo.cpp b/lib/Target/ARM/ARMELFWriterInfo.cpp
deleted file mode 100644
index 7bca0edf91..0000000000
--- a/lib/Target/ARM/ARMELFWriterInfo.cpp
+++ /dev/null
@@ -1,78 +0,0 @@
-//===-- ARMELFWriterInfo.cpp - ELF Writer Info for the ARM backend --------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF writer information for the ARM backend.
-//
-//===----------------------------------------------------------------------===//
-
-#include "ARMELFWriterInfo.h"
-#include "ARMRelocations.h"
-#include "llvm/Function.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/DataLayout.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Support/ELF.h"
-
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-//  Implementation of the ARMELFWriterInfo class
-//===----------------------------------------------------------------------===//
-
-ARMELFWriterInfo::ARMELFWriterInfo(TargetMachine &TM)
-  : TargetELFWriterInfo(TM.getDataLayout()->getPointerSizeInBits(0) == 64,
-                        TM.getDataLayout()->isLittleEndian()) {
-}
-
-ARMELFWriterInfo::~ARMELFWriterInfo() {}
-
-unsigned ARMELFWriterInfo::getRelocationType(unsigned MachineRelTy) const {
-  switch (MachineRelTy) {
-  case ARM::reloc_arm_absolute:
-  case ARM::reloc_arm_relative:
-  case ARM::reloc_arm_cp_entry:
-  case ARM::reloc_arm_vfp_cp_entry:
-  case ARM::reloc_arm_machine_cp_entry:
-  case ARM::reloc_arm_jt_base:
-  case ARM::reloc_arm_pic_jt:
-    llvm_unreachable("unsupported ARM relocation type");
-
-  case ARM::reloc_arm_branch: return ELF::R_ARM_CALL;
-  case ARM::reloc_arm_movt:   return ELF::R_ARM_MOVT_ABS;
-  case ARM::reloc_arm_movw:   return ELF::R_ARM_MOVW_ABS_NC;
-  default:
-    llvm_unreachable("unknown ARM relocation type");
-  }
-}
-
-long int ARMELFWriterInfo::getDefaultAddendForRelTy(unsigned RelTy,
-                                                    long int Modifier) const {
-  llvm_unreachable("ARMELFWriterInfo::getDefaultAddendForRelTy() not "
-                   "implemented");
-}
-
-unsigned ARMELFWriterInfo::getRelocationTySize(unsigned RelTy) const {
-  llvm_unreachable("ARMELFWriterInfo::getRelocationTySize() not implemented");
-}
-
-bool ARMELFWriterInfo::isPCRelativeRel(unsigned RelTy) const {
-  llvm_unreachable("ARMELFWriterInfo::isPCRelativeRel() not implemented");
-}
-
-unsigned ARMELFWriterInfo::getAbsoluteLabelMachineRelTy() const {
-  llvm_unreachable("ARMELFWriterInfo::getAbsoluteLabelMachineRelTy() not "
-                   "implemented");
-}
-
-long int ARMELFWriterInfo::computeRelocation(unsigned SymOffset,
-                                             unsigned RelOffset,
-                                             unsigned RelTy) const {
-  llvm_unreachable("ARMELFWriterInfo::getAbsoluteLabelMachineRelTy() not "
-                   "implemented");
-}
diff --git a/lib/Target/ARM/ARMELFWriterInfo.h b/lib/Target/ARM/ARMELFWriterInfo.h
deleted file mode 100644
index 6a84f8ac42..0000000000
--- a/lib/Target/ARM/ARMELFWriterInfo.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//===-- ARMELFWriterInfo.h - ELF Writer Info for ARM ------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF writer information for the ARM backend.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef ARM_ELF_WRITER_INFO_H
-#define ARM_ELF_WRITER_INFO_H
-
-#include "llvm/Target/TargetELFWriterInfo.h"
-
-namespace llvm {
-  class TargetMachine;
-
-  class ARMELFWriterInfo : public TargetELFWriterInfo {
-  public:
-    ARMELFWriterInfo(TargetMachine &TM);
-    virtual ~ARMELFWriterInfo();
-
-    /// getRelocationType - Returns the target specific ELF Relocation type.
-    /// 'MachineRelTy' contains the object code independent relocation type
-    virtual unsigned getRelocationType(unsigned MachineRelTy) const;
-
-    /// hasRelocationAddend - True if the target uses an addend in the
-    /// ELF relocation entry.
-    virtual bool hasRelocationAddend() const { return false; }
-
-    /// getDefaultAddendForRelTy - Gets the default addend value for a
-    /// relocation entry based on the target ELF relocation type.
-    virtual long int getDefaultAddendForRelTy(unsigned RelTy,
-                                              long int Modifier = 0) const;
-
-    /// getRelTySize - Returns the size of relocatable field in bits
-    virtual unsigned getRelocationTySize(unsigned RelTy) const;
-
-    /// isPCRelativeRel - True if the relocation type is pc relative
-    virtual bool isPCRelativeRel(unsigned RelTy) const;
-
-    /// getJumpTableRelocationTy - Returns the machine relocation type used
-    /// to reference a jumptable.
-    virtual unsigned getAbsoluteLabelMachineRelTy() const;
-
-    /// computeRelocation - Some relocatable fields could be relocated
-    /// directly, avoiding the relocation symbol emission, compute the
-    /// final relocation value for this symbol.
-    virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
-                                       unsigned RelTy) const;
-  };
-
-} // end llvm namespace
-
-#endif // ARM_ELF_WRITER_INFO_H
diff --git a/lib/Target/ARM/ARMTargetMachine.cpp b/lib/Target/ARM/ARMTargetMachine.cpp
index fdff55edfe..b486d4fe2e 100644
--- a/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/lib/Target/ARM/ARMTargetMachine.cpp
@@ -68,7 +68,6 @@ ARMTargetMachine::ARMTargetMachine(const Target &T, StringRef TT,
                            "v128:64:128-v64:64:64-n32-S64") :
                std::string("e-p:32:32-f64:64:64-i64:64:64-"
                            "v128:64:128-v64:64:64-n32-S32")),
-    ELFWriterInfo(*this),
     TLInfo(*this),
     TSInfo(*this),
     FrameLowering(Subtarget),
@@ -100,7 +99,6 @@ ThumbTargetMachine::ThumbTargetMachine(const Target &T, StringRef TT,
                std::string("e-p:32:32-f64:64:64-i64:64:64-"
                            "i16:16:32-i8:8:32-i1:8:32-"
                            "v128:64:128-v64:64:64-a:0:32-n32-S32")),
-    ELFWriterInfo(*this),
     TLInfo(*this),
     TSInfo(*this),
     FrameLowering(Subtarget.hasThumb2()
diff --git a/lib/Target/ARM/ARMTargetMachine.h b/lib/Target/ARM/ARMTargetMachine.h
index 7a65a7f062..ebdd5b4d64 100644
--- a/lib/Target/ARM/ARMTargetMachine.h
+++ b/lib/Target/ARM/ARMTargetMachine.h
@@ -15,7 +15,6 @@
 #define ARMTARGETMACHINE_H
 
 #include "ARMInstrInfo.h"
-#include "ARMELFWriterInfo.h"
 #include "ARMFrameLowering.h"
 #include "ARMJITInfo.h"
 #include "ARMSubtarget.h"
@@ -64,7 +63,6 @@ class ARMTargetMachine : public ARMBaseTargetMachine {
   virtual void anchor();
   ARMInstrInfo        InstrInfo;
   const DataLayout    DL;       // Calculates type size & alignment
-  ARMELFWriterInfo    ELFWriterInfo;
   ARMTargetLowering   TLInfo;
   ARMSelectionDAGInfo TSInfo;
   ARMFrameLowering    FrameLowering;
@@ -99,9 +97,6 @@ class ARMTargetMachine : public ARMBaseTargetMachine {
   }
   virtual const ARMInstrInfo     *getInstrInfo() const { return &InstrInfo; }
   virtual const DataLayout       *getDataLayout() const { return &DL; }
-  virtual const ARMELFWriterInfo *getELFWriterInfo() const {
-    return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
-  }
 };
 
 /// ThumbTargetMachine - Thumb target machine.
@@ -113,7 +108,6 @@ class ThumbTargetMachine : public ARMBaseTargetMachine {
   // Either Thumb1InstrInfo or Thumb2InstrInfo.
   OwningPtr<ARMBaseInstrInfo> InstrInfo;
   const DataLayout    DL;   // Calculates type size & alignment
-  ARMELFWriterInfo    ELFWriterInfo;
   ARMTargetLowering   TLInfo;
   ARMSelectionDAGInfo TSInfo;
   // Either Thumb1FrameLowering or ARMFrameLowering.
@@ -155,9 +149,6 @@ public:
     return &VTTI;
   }
   virtual const DataLayout       *getDataLayout() const { return &DL; }
-  virtual const ARMELFWriterInfo *getELFWriterInfo() const {
-    return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
-  }
 };
 
 } // end namespace llvm
diff --git a/lib/Target/ARM/CMakeLists.txt b/lib/Target/ARM/CMakeLists.txt
index ac916ccaed..377bd9243c 100644
--- a/lib/Target/ARM/CMakeLists.txt
+++ b/lib/Target/ARM/CMakeLists.txt
@@ -22,7 +22,6 @@ add_llvm_target(ARMCodeGen
   ARMCodeEmitter.cpp
   ARMConstantIslandPass.cpp
   ARMConstantPoolValue.cpp
-  ARMELFWriterInfo.cpp
   ARMExpandPseudoInsts.cpp
   ARMFastISel.cpp
   ARMFrameLowering.cpp
diff --git a/lib/Target/CMakeLists.txt b/lib/Target/CMakeLists.txt
index 48df199437..a85acaaa14 100644
--- a/lib/Target/CMakeLists.txt
+++ b/lib/Target/CMakeLists.txt
@@ -1,7 +1,6 @@
 add_llvm_library(LLVMTarget
   Mangler.cpp
   Target.cpp
-  TargetELFWriterInfo.cpp
   TargetInstrInfo.cpp
   TargetIntrinsicInfo.cpp
   TargetJITInfo.cpp
diff --git a/lib/Target/MBlaze/CMakeLists.txt b/lib/Target/MBlaze/CMakeLists.txt
index 6c3e8b6447..0bf93d71da 100644
--- a/lib/Target/MBlaze/CMakeLists.txt
+++ b/lib/Target/MBlaze/CMakeLists.txt
@@ -27,7 +27,6 @@ add_llvm_target(MBlazeCodeGen
   MBlazeSelectionDAGInfo.cpp
   MBlazeAsmPrinter.cpp
   MBlazeMCInstLower.cpp
-  MBlazeELFWriterInfo.cpp
   )
 
 add_dependencies(LLVMMBlazeCodeGen intrinsics_gen)
diff --git a/lib/Target/MBlaze/MBlazeELFWriterInfo.cpp b/lib/Target/MBlaze/MBlazeELFWriterInfo.cpp
deleted file mode 100644
index 6b575099e5..0000000000
--- a/lib/Target/MBlaze/MBlazeELFWriterInfo.cpp
+++ /dev/null
@@ -1,107 +0,0 @@
-//===-- MBlazeELFWriterInfo.cpp - ELF Writer Info for the MBlaze backend --===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF writer information for the MBlaze backend.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MBlazeELFWriterInfo.h"
-#include "MBlazeRelocations.h"
-#include "llvm/Function.h"
-#include "llvm/Support/ELF.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/DataLayout.h"
-#include "llvm/Target/TargetMachine.h"
-
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-//  Implementation of the MBlazeELFWriterInfo class
-//===----------------------------------------------------------------------===//
-
-MBlazeELFWriterInfo::MBlazeELFWriterInfo(TargetMachine &TM)
-  : TargetELFWriterInfo(TM.getDataLayout()->getPointerSizeInBits(0) == 64,
-                        TM.getDataLayout()->isLittleEndian()) {
-}
-
-MBlazeELFWriterInfo::~MBlazeELFWriterInfo() {}
-
-unsigned MBlazeELFWriterInfo::getRelocationType(unsigned MachineRelTy) const {
-  switch (MachineRelTy) {
-  case MBlaze::reloc_pcrel_word:
-    return ELF::R_MICROBLAZE_64_PCREL;
-  case MBlaze::reloc_absolute_word:
-    return ELF::R_MICROBLAZE_NONE;
-  default:
-    llvm_unreachable("unknown mblaze machine relocation type");
-  }
-}
-
-long int MBlazeELFWriterInfo::getDefaultAddendForRelTy(unsigned RelTy,
-                                                    long int Modifier) const {
-  switch (RelTy) {
-  case ELF::R_MICROBLAZE_32_PCREL:
-    return Modifier - 4;
-  case ELF::R_MICROBLAZE_32:
-    return Modifier;
-  default:
-    llvm_unreachable("unknown mblaze relocation type");
-  }
-}
-
-unsigned MBlazeELFWriterInfo::getRelocationTySize(unsigned RelTy) const {
-  // FIXME: Most of these sizes are guesses based on the name
-  switch (RelTy) {
-  case ELF::R_MICROBLAZE_32:
-  case ELF::R_MICROBLAZE_32_PCREL:
-  case ELF::R_MICROBLAZE_32_PCREL_LO:
-  case ELF::R_MICROBLAZE_32_LO:
-  case ELF::R_MICROBLAZE_SRO32:
-  case ELF::R_MICROBLAZE_SRW32:
-  case ELF::R_MICROBLAZE_32_SYM_OP_SYM:
-  case ELF::R_MICROBLAZE_GOTOFF_32:
-    return 32;
-
-  case ELF::R_MICROBLAZE_64_PCREL:
-  case ELF::R_MICROBLAZE_64:
-  case ELF::R_MICROBLAZE_GOTPC_64:
-  case ELF::R_MICROBLAZE_GOT_64:
-  case ELF::R_MICROBLAZE_PLT_64:
-  case ELF::R_MICROBLAZE_GOTOFF_64:
-    return 64;
-  }
-
-  return 0;
-}
-
-bool MBlazeELFWriterInfo::isPCRelativeRel(unsigned RelTy) const {
-  // FIXME: Most of these are guesses based on the name
-  switch (RelTy) {
-  case ELF::R_MICROBLAZE_32_PCREL:
-  case ELF::R_MICROBLAZE_64_PCREL:
-  case ELF::R_MICROBLAZE_32_PCREL_LO:
-  case ELF::R_MICROBLAZE_GOTPC_64:
-    return true;
-  }
-
-  return false;
-}
-
-unsigned MBlazeELFWriterInfo::getAbsoluteLabelMachineRelTy() const {
-  return MBlaze::reloc_absolute_word;
-}
-
-long int MBlazeELFWriterInfo::computeRelocation(unsigned SymOffset,
-                                                unsigned RelOffset,
-                                                unsigned RelTy) const {
-  assert((RelTy == ELF::R_MICROBLAZE_32_PCREL ||
-          RelTy == ELF::R_MICROBLAZE_64_PCREL) &&
-         "computeRelocation unknown for this relocation type");
-  return SymOffset - (RelOffset + 4);
-}
diff --git a/lib/Target/MBlaze/MBlazeELFWriterInfo.h b/lib/Target/MBlaze/MBlazeELFWriterInfo.h
deleted file mode 100644
index a314eb76ea..0000000000
--- a/lib/Target/MBlaze/MBlazeELFWriterInfo.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//===-- MBlazeELFWriterInfo.h - ELF Writer Info for MBlaze ------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF writer information for the MBlaze backend.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef MBLAZE_ELF_WRITER_INFO_H
-#define MBLAZE_ELF_WRITER_INFO_H
-
-#include "llvm/Target/TargetELFWriterInfo.h"
-
-namespace llvm {
-  class TargetMachine;
-
-  class MBlazeELFWriterInfo : public TargetELFWriterInfo {
-  public:
-    MBlazeELFWriterInfo(TargetMachine &TM);
-    virtual ~MBlazeELFWriterInfo();
-
-    /// getRelocationType - Returns the target specific ELF Relocation type.
-    /// 'MachineRelTy' contains the object code independent relocation type
-    virtual unsigned getRelocationType(unsigned MachineRelTy) const;
-
-    /// hasRelocationAddend - True if the target uses an addend in the
-    /// ELF relocation entry.
-    virtual bool hasRelocationAddend() const { return false; }
-
-    /// getDefaultAddendForRelTy - Gets the default addend value for a
-    /// relocation entry based on the target ELF relocation type.
-    virtual long int getDefaultAddendForRelTy(unsigned RelTy,
-                                              long int Modifier = 0) const;
-
-    /// getRelTySize - Returns the size of relocatable field in bits
-    virtual unsigned getRelocationTySize(unsigned RelTy) const;
-
-    /// isPCRelativeRel - True if the relocation type is pc relative
-    virtual bool isPCRelativeRel(unsigned RelTy) const;
-
-    /// getJumpTableRelocationTy - Returns the machine relocation type used
-    /// to reference a jumptable.
-    virtual unsigned getAbsoluteLabelMachineRelTy() const;
-
-    /// computeRelocation - Some relocatable fields could be relocated
-    /// directly, avoiding the relocation symbol emission, compute the
-    /// final relocation value for this symbol.
-    virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
-                                       unsigned RelTy) const;
-  };
-
-} // end llvm namespace
-
-#endif // MBLAZE_ELF_WRITER_INFO_H
diff --git a/lib/Target/MBlaze/MBlazeTargetMachine.cpp b/lib/Target/MBlaze/MBlazeTargetMachine.cpp
index 1ae2baa198..f180652f11 100644
--- a/lib/Target/MBlaze/MBlazeTargetMachine.cpp
+++ b/lib/Target/MBlaze/MBlazeTargetMachine.cpp
@@ -41,7 +41,7 @@ MBlazeTargetMachine(const Target &T, StringRef TT,
     DL("E-p:32:32:32-i8:8:8-i16:16:16"),
     InstrInfo(*this),
     FrameLowering(Subtarget),
-    TLInfo(*this), TSInfo(*this), ELFWriterInfo(*this),
+    TLInfo(*this), TSInfo(*this),
     InstrItins(Subtarget.getInstrItineraryData()),
     STTI(&TLInfo), VTTI(&TLInfo) {
 }
diff --git a/lib/Target/MBlaze/MBlazeTargetMachine.h b/lib/Target/MBlaze/MBlazeTargetMachine.h
index 34648b9b9a..a8df4e63e3 100644
--- a/lib/Target/MBlaze/MBlazeTargetMachine.h
+++ b/lib/Target/MBlaze/MBlazeTargetMachine.h
@@ -20,7 +20,6 @@
 #include "MBlazeSelectionDAGInfo.h"
 #include "MBlazeIntrinsicInfo.h"
 #include "MBlazeFrameLowering.h"
-#include "MBlazeELFWriterInfo.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/DataLayout.h"
@@ -38,7 +37,6 @@ namespace llvm {
     MBlazeTargetLowering   TLInfo;
     MBlazeSelectionDAGInfo TSInfo;
     MBlazeIntrinsicInfo    IntrinsicInfo;
-    MBlazeELFWriterInfo    ELFWriterInfo;
     InstrItineraryData     InstrItins;
     ScalarTargetTransformImpl STTI;
     VectorTargetTransformImpl VTTI;
@@ -77,9 +75,6 @@ namespace llvm {
     const TargetIntrinsicInfo *getIntrinsicInfo() const
     { return &IntrinsicInfo; }
 
-    virtual const MBlazeELFWriterInfo *getELFWriterInfo() const {
-      return &ELFWriterInfo;
-    }
     virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const
     { return &STTI; }
     virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const
diff --git a/lib/Target/Mips/CMakeLists.txt b/lib/Target/Mips/CMakeLists.txt
index 3cc2821d47..ef56e752b2 100644
--- a/lib/Target/Mips/CMakeLists.txt
+++ b/lib/Target/Mips/CMakeLists.txt
@@ -22,7 +22,6 @@ add_llvm_target(MipsCodeGen
   MipsAsmPrinter.cpp
   MipsCodeEmitter.cpp
   MipsDelaySlotFiller.cpp
-  MipsELFWriterInfo.cpp
   MipsJITInfo.cpp
   MipsInstrInfo.cpp
   MipsISelDAGToDAG.cpp
diff --git a/lib/Target/Mips/MipsELFWriterInfo.cpp b/lib/Target/Mips/MipsELFWriterInfo.cpp
deleted file mode 100644
index 786e6554f0..0000000000
--- a/lib/Target/Mips/MipsELFWriterInfo.cpp
+++ /dev/null
@@ -1,92 +0,0 @@
-//===-- MipsELFWriterInfo.cpp - ELF Writer Info for the Mips backend ------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF writer information for the Mips backend.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MipsELFWriterInfo.h"
-#include "MipsRelocations.h"
-#include "llvm/Function.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/DataLayout.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Support/ELF.h"
-
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-//  Implementation of the MipsELFWriterInfo class
-//===----------------------------------------------------------------------===//
-
-MipsELFWriterInfo::MipsELFWriterInfo(bool is64Bit_, bool isLittleEndian_)
-  : TargetELFWriterInfo(is64Bit_, isLittleEndian_) {
-  EMachine = EM_MIPS;
-}
-
-MipsELFWriterInfo::~MipsELFWriterInfo() {}
-
-unsigned MipsELFWriterInfo::getRelocationType(unsigned MachineRelTy) const {
-  switch(MachineRelTy) {
-  case Mips::reloc_mips_pc16:
-    return ELF::R_MIPS_GOT16;
-  case Mips::reloc_mips_hi:
-    return ELF::R_MIPS_HI16;
-  case Mips::reloc_mips_lo:
-    return ELF::R_MIPS_LO16;
-  case Mips::reloc_mips_26:
-    return ELF::R_MIPS_26;
-  default:
-    llvm_unreachable("unknown Mips machine relocation type");
-  }
-}
-
-long int MipsELFWriterInfo::getDefaultAddendForRelTy(unsigned RelTy,
-                                                     long int Modifier) const {
-  switch(RelTy) {
-  case ELF::R_MIPS_26: return Modifier;
-  default:
-    llvm_unreachable("unknown Mips relocation type");
-  }
-}
-
-unsigned MipsELFWriterInfo::getRelocationTySize(unsigned RelTy) const {
-  switch(RelTy) {
-  case ELF::R_MIPS_GOT16:
-  case ELF::R_MIPS_26:
-      return 32;
-  default:
-    llvm_unreachable("unknown Mips relocation type");
-  }
-}
-
-bool MipsELFWriterInfo::isPCRelativeRel(unsigned RelTy) const {
-  switch(RelTy) {
-  case ELF::R_MIPS_GOT16:
-      return true;
-  case ELF::R_MIPS_26:
-      return false;
-  default:
-    llvm_unreachable("unknown Mips relocation type");
-  }
-}
-
-unsigned MipsELFWriterInfo::getAbsoluteLabelMachineRelTy() const {
-  return Mips::reloc_mips_26;
-}
-
-long int MipsELFWriterInfo::computeRelocation(unsigned SymOffset,
-                                              unsigned RelOffset,
-                                              unsigned RelTy) const {
-
-  if (RelTy == ELF::R_MIPS_GOT16)
-    return SymOffset - (RelOffset + 4);
-
-  llvm_unreachable("computeRelocation unknown for this relocation type");
-}
diff --git a/lib/Target/Mips/MipsELFWriterInfo.h b/lib/Target/Mips/MipsELFWriterInfo.h
deleted file mode 100644
index 23f3f03b35..0000000000
--- a/lib/Target/Mips/MipsELFWriterInfo.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//===-- MipsELFWriterInfo.h - ELF Writer Info for Mips ------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF writer information for the Mips backend.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef MIPS_ELF_WRITER_INFO_H
-#define MIPS_ELF_WRITER_INFO_H
-
-#include "llvm/Target/TargetELFWriterInfo.h"
-
-namespace llvm {
-
-  class MipsELFWriterInfo : public TargetELFWriterInfo {
-
-  public:
-    MipsELFWriterInfo(bool is64Bit_, bool isLittleEndian_);
-    virtual ~MipsELFWriterInfo();
-
-    /// getRelocationType - Returns the target specific ELF Relocation type.
-    /// 'MachineRelTy' contains the object code independent relocation type
-    virtual unsigned getRelocationType(unsigned MachineRelTy) const;
-
-    /// hasRelocationAddend - True if the target uses an addend in the
-    /// ELF relocation entry.
-    virtual bool hasRelocationAddend() const { return is64Bit ? true : false; }
-
-    /// getDefaultAddendForRelTy - Gets the default addend value for a
-    /// relocation entry based on the target ELF relocation type.
-    virtual long int getDefaultAddendForRelTy(unsigned RelTy,
-                                              long int Modifier = 0) const;
-
-    /// getRelTySize - Returns the size of relocatable field in bits
-    virtual unsigned getRelocationTySize(unsigned RelTy) const;
-
-    /// isPCRelativeRel - True if the relocation type is pc relative
-    virtual bool isPCRelativeRel(unsigned RelTy) const;
-
-    /// getJumpTableRelocationTy - Returns the machine relocation type used
-    /// to reference a jumptable.
-    virtual unsigned getAbsoluteLabelMachineRelTy() const;
-
-    /// computeRelocation - Some relocatable fields could be relocated
-    /// directly, avoiding the relocation symbol emission, compute the
-    /// final relocation value for this symbol.
-    virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
-                                       unsigned RelTy) const;
-  };
-
-} // end llvm namespace
-
-#endif // MIPS_ELF_WRITER_INFO_H
diff --git a/lib/Target/Mips/MipsTargetMachine.cpp b/lib/Target/Mips/MipsTargetMachine.cpp
index 7d73866562..983ee21941 100644
--- a/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/lib/Target/Mips/MipsTargetMachine.cpp
@@ -53,7 +53,7 @@ MipsTargetMachine(const Target &T, StringRef TT,
     InstrInfo(MipsInstrInfo::create(*this)),
     FrameLowering(MipsFrameLowering::create(*this, Subtarget)),
     TLInfo(*this), TSInfo(*this), JITInfo(),
-    ELFWriterInfo(false, isLittle), STTI(&TLInfo), VTTI(&TLInfo) {
+    STTI(&TLInfo), VTTI(&TLInfo) {
 }
 
 void MipsebTargetMachine::anchor() { }
diff --git a/lib/Target/Mips/MipsTargetMachine.h b/lib/Target/Mips/MipsTargetMachine.h
index a62db327e5..b54f5cee6d 100644
--- a/lib/Target/Mips/MipsTargetMachine.h
+++ b/lib/Target/Mips/MipsTargetMachine.h
@@ -20,7 +20,6 @@
 #include "MipsJITInfo.h"
 #include "MipsSelectionDAGInfo.h"
 #include "MipsSubtarget.h"
-#include "MipsELFWriterInfo.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/DataLayout.h"
 #include "llvm/Target/TargetFrameLowering.h"
@@ -38,7 +37,6 @@ class MipsTargetMachine : public LLVMTargetMachine {
   MipsTargetLowering  TLInfo;
   MipsSelectionDAGInfo TSInfo;
   MipsJITInfo JITInfo;
-  MipsELFWriterInfo   ELFWriterInfo;
   ScalarTargetTransformImpl STTI;
   VectorTargetTransformImpl VTTI;
 
@@ -74,9 +72,6 @@ public:
     return &TSInfo;
   }
 
-  virtual const MipsELFWriterInfo *getELFWriterInfo() const {
-    return &ELFWriterInfo;
-  }
   virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
     return &STTI;
   }
diff --git a/lib/Target/TargetELFWriterInfo.cpp b/lib/Target/TargetELFWriterInfo.cpp
deleted file mode 100644
index 66da391eca..0000000000
--- a/lib/Target/TargetELFWriterInfo.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-//===-- lib/Target/TargetELFWriterInfo.cpp - ELF Writer Info --0-*- C++ -*-===//
-//
-//                     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 TargetELFWriterInfo class.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Function.h"
-#include "llvm/Target/TargetELFWriterInfo.h"
-#include "llvm/DataLayout.h"
-#include "llvm/Target/TargetMachine.h"
-using namespace llvm;
-
-TargetELFWriterInfo::TargetELFWriterInfo(bool is64Bit_, bool isLittleEndian_) :
-  is64Bit(is64Bit_), isLittleEndian(isLittleEndian_) {
-}
-
-TargetELFWriterInfo::~TargetELFWriterInfo() {}
-
diff --git a/lib/Target/X86/CMakeLists.txt b/lib/Target/X86/CMakeLists.txt
index b886d46501..f4d03a602c 100644
--- a/lib/Target/X86/CMakeLists.txt
+++ b/lib/Target/X86/CMakeLists.txt
@@ -17,7 +17,6 @@ set(sources
   X86AsmPrinter.cpp
   X86COFFMachineModuleInfo.cpp
   X86CodeEmitter.cpp
-  X86ELFWriterInfo.cpp
   X86FastISel.cpp
   X86FloatingPoint.cpp
   X86FrameLowering.cpp
diff --git a/lib/Target/X86/X86ELFWriterInfo.cpp b/lib/Target/X86/X86ELFWriterInfo.cpp
deleted file mode 100644
index 2e08ef811f..0000000000
--- a/lib/Target/X86/X86ELFWriterInfo.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-//===-- X86ELFWriterInfo.cpp - ELF Writer Info for the X86 backend --------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF writer information for the X86 backend.
-//
-//===----------------------------------------------------------------------===//
-
-#include "X86ELFWriterInfo.h"
-#include "X86Relocations.h"
-#include "llvm/Function.h"
-#include "llvm/Support/ELF.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/DataLayout.h"
-#include "llvm/Target/TargetMachine.h"
-
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-//  Implementation of the X86ELFWriterInfo class
-//===----------------------------------------------------------------------===//
-
-X86ELFWriterInfo::X86ELFWriterInfo(bool is64Bit_, bool isLittleEndian_)
-  : TargetELFWriterInfo(is64Bit_, isLittleEndian_) {
-    EMachine = is64Bit ? EM_X86_64 : EM_386;
-  }
-
-X86ELFWriterInfo::~X86ELFWriterInfo() {}
-
-unsigned X86ELFWriterInfo::getRelocationType(unsigned MachineRelTy) const {
-  if (is64Bit) {
-    switch(MachineRelTy) {
-    case X86::reloc_pcrel_word:
-      return ELF::R_X86_64_PC32;
-    case X86::reloc_absolute_word:
-      return ELF::R_X86_64_32;
-    case X86::reloc_absolute_word_sext:
-      return ELF::R_X86_64_32S;
-    case X86::reloc_absolute_dword:
-      return ELF::R_X86_64_64;
-    case X86::reloc_picrel_word:
-    default:
-      llvm_unreachable("unknown x86_64 machine relocation type");
-    }
-  } else {
-    switch(MachineRelTy) {
-    case X86::reloc_pcrel_word:
-      return ELF::R_386_PC32;
-    case X86::reloc_absolute_word:
-      return ELF::R_386_32;
-    case X86::reloc_absolute_word_sext:
-    case X86::reloc_absolute_dword:
-    case X86::reloc_picrel_word:
-    default:
-      llvm_unreachable("unknown x86 machine relocation type");
-    }
-  }
-}
-
-long int X86ELFWriterInfo::getDefaultAddendForRelTy(unsigned RelTy,
-                                                    long int Modifier) const {
-  if (is64Bit) {
-    switch(RelTy) {
-    case ELF::R_X86_64_PC32: return Modifier - 4;
-    case ELF::R_X86_64_32:
-    case ELF::R_X86_64_32S:
-    case ELF::R_X86_64_64:
-      return Modifier;
-    default:
-      llvm_unreachable("unknown x86_64 relocation type");
-    }
-  } else {
-    switch(RelTy) {
-    case ELF::R_386_PC32: return Modifier - 4;
-    case ELF::R_386_32: return Modifier;
-    default:
-      llvm_unreachable("unknown x86 relocation type");
-    }
-  }
-}
-
-unsigned X86ELFWriterInfo::getRelocationTySize(unsigned RelTy) const {
-  if (is64Bit) {
-    switch(RelTy) {
-    case ELF::R_X86_64_PC32:
-    case ELF::R_X86_64_32:
-    case ELF::R_X86_64_32S:
-        return 32;
-    case ELF::R_X86_64_64:
-        return 64;
-    default:
-      llvm_unreachable("unknown x86_64 relocation type");
-    }
-  } else {
-    switch(RelTy) {
-    case ELF::R_386_PC32:
-    case ELF::R_386_32:
-        return 32;
-    default:
-      llvm_unreachable("unknown x86 relocation type");
-    }
-  }
-}
-
-bool X86ELFWriterInfo::isPCRelativeRel(unsigned RelTy) const {
-  if (is64Bit) {
-    switch(RelTy) {
-    case ELF::R_X86_64_PC32:
-        return true;
-    case ELF::R_X86_64_32:
-    case ELF::R_X86_64_32S:
-    case ELF::R_X86_64_64:
-        return false;
-    default:
-      llvm_unreachable("unknown x86_64 relocation type");
-    }
-  } else {
-    switch(RelTy) {
-    case ELF::R_386_PC32:
-        return true;
-    case ELF::R_386_32:
-        return false;
-    default:
-      llvm_unreachable("unknown x86 relocation type");
-    }
-  }
-}
-
-unsigned X86ELFWriterInfo::getAbsoluteLabelMachineRelTy() const {
-  return is64Bit ?
-    X86::reloc_absolute_dword : X86::reloc_absolute_word;
-}
-
-long int X86ELFWriterInfo::computeRelocation(unsigned SymOffset,
-                                             unsigned RelOffset,
-                                             unsigned RelTy) const {
-
-  if (RelTy == ELF::R_X86_64_PC32 || RelTy == ELF::R_386_PC32)
-    return SymOffset - (RelOffset + 4);
-
-  llvm_unreachable("computeRelocation unknown for this relocation type");
-}
diff --git a/lib/Target/X86/X86ELFWriterInfo.h b/lib/Target/X86/X86ELFWriterInfo.h
deleted file mode 100644
index a45b5bb66a..0000000000
--- a/lib/Target/X86/X86ELFWriterInfo.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//===-- X86ELFWriterInfo.h - ELF Writer Info for X86 ------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements ELF writer information for the X86 backend.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef X86_ELF_WRITER_INFO_H
-#define X86_ELF_WRITER_INFO_H
-
-#include "llvm/Target/TargetELFWriterInfo.h"
-
-namespace llvm {
-
-  class X86ELFWriterInfo : public TargetELFWriterInfo {
-
-  public:
-    X86ELFWriterInfo(bool is64Bit_, bool isLittleEndian_);
-    virtual ~X86ELFWriterInfo();
-
-    /// getRelocationType - Returns the target specific ELF Relocation type.
-    /// 'MachineRelTy' contains the object code independent relocation type
-    virtual unsigned getRelocationType(unsigned MachineRelTy) const;
-
-    /// hasRelocationAddend - True if the target uses an addend in the
-    /// ELF relocation entry.
-    virtual bool hasRelocationAddend() const { return is64Bit ? true : false; }
-
-    /// getDefaultAddendForRelTy - Gets the default addend value for a
-    /// relocation entry based on the target ELF relocation type.
-    virtual long int getDefaultAddendForRelTy(unsigned RelTy,
-                                              long int Modifier = 0) const;
-
-    /// getRelTySize - Returns the size of relocatable field in bits
-    virtual unsigned getRelocationTySize(unsigned RelTy) const;
-
-    /// isPCRelativeRel - True if the relocation type is pc relative
-    virtual bool isPCRelativeRel(unsigned RelTy) const;
-
-    /// getJumpTableRelocationTy - Returns the machine relocation type used
-    /// to reference a jumptable.
-    virtual unsigned getAbsoluteLabelMachineRelTy() const;
-
-    /// computeRelocation - Some relocatable fields could be relocated
-    /// directly, avoiding the relocation symbol emission, compute the
-    /// final relocation value for this symbol.
-    virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
-                                       unsigned RelTy) const;
-  };
-
-} // end llvm namespace
-
-#endif // X86_ELF_WRITER_INFO_H
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 48f9bba1fc..158f9dc066 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -80,7 +80,6 @@ X86TargetMachine::X86TargetMachine(const Target &T, StringRef TT,
   : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
     Subtarget(TT, CPU, FS, Options.StackAlignmentOverride, is64Bit),
     FrameLowering(*this, Subtarget),
-    ELFWriterInfo(is64Bit, true),
     InstrItins(Subtarget.getInstrItineraryData()){
   // Determine the PICStyle based on the target selected.
   if (getRelocationModel() == Reloc::Static) {
diff --git a/lib/Target/X86/X86TargetMachine.h b/lib/Target/X86/X86TargetMachine.h
index 4bad695b4c..01296c331e 100644
--- a/lib/Target/X86/X86TargetMachine.h
+++ b/lib/Target/X86/X86TargetMachine.h
@@ -15,7 +15,6 @@
 #define X86TARGETMACHINE_H
 
 #include "X86.h"
-#include "X86ELFWriterInfo.h"
 #include "X86InstrInfo.h"
 #include "X86ISelLowering.h"
 #include "X86FrameLowering.h"
@@ -34,7 +33,6 @@ class StringRef;
 class X86TargetMachine : public LLVMTargetMachine {
   X86Subtarget       Subtarget;
   X86FrameLowering   FrameLowering;
-  X86ELFWriterInfo   ELFWriterInfo;
   InstrItineraryData InstrItins;
 
 public:
@@ -63,9 +61,6 @@ public:
   virtual const X86RegisterInfo  *getRegisterInfo() const {
     return &getInstrInfo()->getRegisterInfo();
   }
-  virtual const X86ELFWriterInfo *getELFWriterInfo() const {
-    return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
-  }
   virtual const InstrItineraryData *getInstrItineraryData() const {
     return &InstrItins;
   }