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-rw-r--r--lib/Target/MBlaze/MBlazeAsmBackend.cpp162
1 files changed, 0 insertions, 162 deletions
diff --git a/lib/Target/MBlaze/MBlazeAsmBackend.cpp b/lib/Target/MBlaze/MBlazeAsmBackend.cpp
deleted file mode 100644
index 08f14c3659..0000000000
--- a/lib/Target/MBlaze/MBlazeAsmBackend.cpp
+++ /dev/null
@@ -1,162 +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 "llvm/Target/TargetAsmBackend.h"
-#include "MBlaze.h"
-#include "MBlazeELFWriterInfo.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/MC/MCAssembler.h"
-#include "llvm/MC/MCAsmLayout.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/raw_ostream.h"
-#include "llvm/Target/TargetRegistry.h"
-#include "llvm/Target/TargetAsmBackend.h"
-using namespace llvm;
-
-static unsigned getFixupKindSize(unsigned Kind) {
- switch (Kind) {
- default: assert(0 && "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 MBlazeELFObjectWriter : public MCELFObjectTargetWriter {
-public:
- MBlazeELFObjectWriter(Triple::OSType OSType)
- : MCELFObjectTargetWriter(/*is64Bit*/ false, OSType, ELF::EM_MBLAZE,
- /*HasRelocationAddend*/ true) {}
-};
-
-class MBlazeAsmBackend : public TargetAsmBackend {
-public:
- MBlazeAsmBackend(const Target &T)
- : TargetAsmBackend() {
- }
-
- unsigned getNumFixupKinds() const {
- return 2;
- }
-
- bool MayNeedRelaxation(const MCInst &Inst) 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;
-}
-
-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:
- Triple::OSType OSType;
- ELFMBlazeAsmBackend(const Target &T, Triple::OSType _OSType)
- : MBlazeAsmBackend(T), OSType(_OSType) { }
-
- void ApplyFixup(const MCFixup &Fixup, char *Data, unsigned DataSize,
- uint64_t Value) const;
-
- MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
- return createELFObjectWriter(new MBlazeELFObjectWriter(OSType), OS,
- /*IsLittleEndian*/ false);
- }
-};
-
-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
-
-TargetAsmBackend *llvm::createMBlazeAsmBackend(const Target &T,
- const std::string &TT) {
- Triple TheTriple(TT);
-
- if (TheTriple.isOSDarwin())
- assert(0 && "Mac not supported on MBlaze");
-
- if (TheTriple.isOSWindows())
- assert(0 && "Windows not supported on MBlaze");
-
- return new ELFMBlazeAsmBackend(T, TheTriple.getOS());
-}