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

5 files changed, 1 insertions, 173 deletions

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