1 files changed, 626 insertions, 0 deletions
diff --git a/contrib/llvm/lib/MC/MCStreamer.cpp b/contrib/llvm/lib/MC/MCStreamer.cpp
new file mode 100644
index 0000000..8f1895e
--- /dev/null
+++ b/contrib/llvm/lib/MC/MCStreamer.cpp
@@ -0,0 +1,626 @@
+//===- lib/MC/MCStreamer.cpp - Streaming Machine Code Output --------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCObjectWriter.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/LEB128.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cstdlib>
+using namespace llvm;
+
+MCStreamer::MCStreamer(StreamerKind Kind, MCContext &Ctx)
+    : Kind(Kind), Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
+      CurrentW64UnwindInfo(0), LastSymbol(0), AutoInitSections(false) {
+  SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
+}
+
+MCStreamer::~MCStreamer() {
+  for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
+    delete W64UnwindInfos[i];
+}
+
+void MCStreamer::reset() {
+  for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
+    delete W64UnwindInfos[i];
+  W64UnwindInfos.clear();
+  EmitEHFrame = true;
+  EmitDebugFrame = false;
+  CurrentW64UnwindInfo = 0;
+  LastSymbol = 0;
+  SectionStack.clear();
+  SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
+}
+
+const MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context,
+                                          const MCSymbol *A,
+                                          const MCSymbol *B) {
+  MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
+  const MCExpr *ARef =
+    MCSymbolRefExpr::Create(A, Variant, Context);
+  const MCExpr *BRef =
+    MCSymbolRefExpr::Create(B, Variant, Context);
+  const MCExpr *AddrDelta =
+    MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context);
+  return AddrDelta;
+}
+
+const MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) {
+  if (Context.getAsmInfo().hasAggressiveSymbolFolding() ||
+      isa<MCSymbolRefExpr>(Expr))
+    return Expr;
+
+  MCSymbol *ABS = Context.CreateTempSymbol();
+  EmitAssignment(ABS, Expr);
+  return MCSymbolRefExpr::Create(ABS, Context);
+}
+
+raw_ostream &MCStreamer::GetCommentOS() {
+  // By default, discard comments.
+  return nulls();
+}
+
+void MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta,
+                                      const MCSymbol *Label, int PointerSize) {
+  // emit the sequence to set the address
+  EmitIntValue(dwarf::DW_LNS_extended_op, 1);
+  EmitULEB128IntValue(PointerSize + 1);
+  EmitIntValue(dwarf::DW_LNE_set_address, 1);
+  EmitSymbolValue(Label, PointerSize);
+
+  // emit the sequence for the LineDelta (from 1) and a zero address delta.
+  MCDwarfLineAddr::Emit(this, LineDelta, 0);
+}
+
+/// EmitIntValue - Special case of EmitValue that avoids the client having to
+/// pass in a MCExpr for constant integers.
+void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size,
+                              unsigned AddrSpace) {
+  assert(Size <= 8 && "Invalid size");
+  assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) &&
+         "Invalid size");
+  char buf[8];
+  const bool isLittleEndian = Context.getAsmInfo().isLittleEndian();
+  for (unsigned i = 0; i != Size; ++i) {
+    unsigned index = isLittleEndian ? i : (Size - i - 1);
+    buf[i] = uint8_t(Value >> (index * 8));
+  }
+  EmitBytes(StringRef(buf, Size), AddrSpace);
+}
+
+/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
+/// client having to pass in a MCExpr for constant integers.
+void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned Padding,
+                                     unsigned AddrSpace) {
+  SmallString<128> Tmp;
+  raw_svector_ostream OSE(Tmp);
+  encodeULEB128(Value, OSE, Padding);
+  EmitBytes(OSE.str(), AddrSpace);
+}
+
+/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
+/// client having to pass in a MCExpr for constant integers.
+void MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) {
+  SmallString<128> Tmp;
+  raw_svector_ostream OSE(Tmp);
+  encodeSLEB128(Value, OSE);
+  EmitBytes(OSE.str(), AddrSpace);
+}
+
+void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size,
+                              unsigned AddrSpace) {
+  const MCExpr *ABS = ForceExpAbs(Value);
+  EmitValue(ABS, Size, AddrSpace);
+}
+
+
+void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size,
+                           unsigned AddrSpace) {
+  EmitValueImpl(Value, Size, AddrSpace);
+}
+
+void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
+                                  unsigned AddrSpace) {
+  EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size,
+                AddrSpace);
+}
+
+void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
+  report_fatal_error("unsupported directive in streamer");
+}
+
+void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
+  report_fatal_error("unsupported directive in streamer");
+}
+
+/// EmitFill - Emit NumBytes bytes worth of the value specified by
+/// FillValue.  This implements directives such as '.space'.
+void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
+                          unsigned AddrSpace) {
+  const MCExpr *E = MCConstantExpr::Create(FillValue, getContext());
+  for (uint64_t i = 0, e = NumBytes; i != e; ++i)
+    EmitValue(E, 1, AddrSpace);
+}
+
+bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
+                                        StringRef Directory,
+                                        StringRef Filename, unsigned CUID) {
+  return getContext().GetDwarfFile(Directory, Filename, FileNo, CUID) == 0;
+}
+
+void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
+                                       unsigned Column, unsigned Flags,
+                                       unsigned Isa,
+                                       unsigned Discriminator,
+                                       StringRef FileName) {
+  getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa,
+                                  Discriminator);
+}
+
+MCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() {
+  if (FrameInfos.empty())
+    return 0;
+  return &FrameInfos.back();
+}
+
+void MCStreamer::EnsureValidFrame() {
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  if (!CurFrame || CurFrame->End)
+    report_fatal_error("No open frame");
+}
+
+void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
+                                     MCSymbol *EHSymbol) {
+}
+
+void MCStreamer::EmitLabel(MCSymbol *Symbol) {
+  assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
+  assert(getCurrentSection().first && "Cannot emit before setting section!");
+  Symbol->setSection(*getCurrentSection().first);
+  LastSymbol = Symbol;
+}
+
+void MCStreamer::EmitDebugLabel(MCSymbol *Symbol) {
+  assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
+  assert(getCurrentSection().first && "Cannot emit before setting section!");
+  Symbol->setSection(*getCurrentSection().first);
+  LastSymbol = Symbol;
+}
+
+void MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) {
+  EnsureValidFrame();
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->CompactUnwindEncoding = CompactUnwindEncoding;
+}
+
+void MCStreamer::EmitCFISections(bool EH, bool Debug) {
+  assert(EH || Debug);
+  EmitEHFrame = EH;
+  EmitDebugFrame = Debug;
+}
+
+void MCStreamer::EmitCFIStartProc() {
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  if (CurFrame && !CurFrame->End)
+    report_fatal_error("Starting a frame before finishing the previous one!");
+
+  MCDwarfFrameInfo Frame;
+  EmitCFIStartProcImpl(Frame);
+
+  FrameInfos.push_back(Frame);
+}
+
+void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
+}
+
+void MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) {
+  Frame.Function = LastSymbol;
+  // If the function is externally visible, we need to create a local
+  // symbol to avoid relocations.
+  StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix();
+  if (LastSymbol && LastSymbol->getName().startswith(Prefix)) {
+    Frame.Begin = LastSymbol;
+  } else {
+    Frame.Begin = getContext().CreateTempSymbol();
+    EmitLabel(Frame.Begin);
+  }
+}
+
+void MCStreamer::EmitCFIEndProc() {
+  EnsureValidFrame();
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  EmitCFIEndProcImpl(*CurFrame);
+}
+
+void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
+}
+
+void MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) {
+  Frame.End = getContext().CreateTempSymbol();
+  EmitLabel(Frame.End);
+}
+
+MCSymbol *MCStreamer::EmitCFICommon() {
+  EnsureValidFrame();
+  MCSymbol *Label = getContext().CreateTempSymbol();
+  EmitLabel(Label);
+  return Label;
+}
+
+void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createDefCfa(Label, Register, Offset);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createDefCfaOffset(Label, Offset);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createDefCfaRegister(Label, Register);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createOffset(Label, Register, Offset);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createRelOffset(Label, Register, Offset);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
+                                    unsigned Encoding) {
+  EnsureValidFrame();
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Personality = Sym;
+  CurFrame->PersonalityEncoding = Encoding;
+}
+
+void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
+  EnsureValidFrame();
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Lsda = Sym;
+  CurFrame->LsdaEncoding = Encoding;
+}
+
+void MCStreamer::EmitCFIRememberState() {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIRestoreState() {
+  // FIXME: Error if there is no matching cfi_remember_state.
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFISameValue(int64_t Register) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createSameValue(Label, Register);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIRestore(int64_t Register) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createRestore(Label, Register);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIEscape(StringRef Values) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFISignalFrame() {
+  EnsureValidFrame();
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->IsSignalFrame = true;
+}
+
+void MCStreamer::EmitCFIUndefined(int64_t Register) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createUndefined(Label, Register);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
+  MCSymbol *Label = EmitCFICommon();
+  MCCFIInstruction Instruction =
+    MCCFIInstruction::createRegister(Label, Register1, Register2);
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  CurFrame->Instructions.push_back(Instruction);
+}
+
+void MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) {
+  W64UnwindInfos.push_back(Frame);
+  CurrentW64UnwindInfo = W64UnwindInfos.back();
+}
+
+void MCStreamer::EnsureValidW64UnwindInfo() {
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  if (!CurFrame || CurFrame->End)
+    report_fatal_error("No open Win64 EH frame function!");
+}
+
+void MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  if (CurFrame && !CurFrame->End)
+    report_fatal_error("Starting a function before ending the previous one!");
+  MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
+  Frame->Begin = getContext().CreateTempSymbol();
+  Frame->Function = Symbol;
+  EmitLabel(Frame->Begin);
+  setCurrentW64UnwindInfo(Frame);
+}
+
+void MCStreamer::EmitWin64EHEndProc() {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  if (CurFrame->ChainedParent)
+    report_fatal_error("Not all chained regions terminated!");
+  CurFrame->End = getContext().CreateTempSymbol();
+  EmitLabel(CurFrame->End);
+}
+
+void MCStreamer::EmitWin64EHStartChained() {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  Frame->Begin = getContext().CreateTempSymbol();
+  Frame->Function = CurFrame->Function;
+  Frame->ChainedParent = CurFrame;
+  EmitLabel(Frame->Begin);
+  setCurrentW64UnwindInfo(Frame);
+}
+
+void MCStreamer::EmitWin64EHEndChained() {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  if (!CurFrame->ChainedParent)
+    report_fatal_error("End of a chained region outside a chained region!");
+  CurFrame->End = getContext().CreateTempSymbol();
+  EmitLabel(CurFrame->End);
+  CurrentW64UnwindInfo = CurFrame->ChainedParent;
+}
+
+void MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
+                                    bool Except) {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  if (CurFrame->ChainedParent)
+    report_fatal_error("Chained unwind areas can't have handlers!");
+  CurFrame->ExceptionHandler = Sym;
+  if (!Except && !Unwind)
+    report_fatal_error("Don't know what kind of handler this is!");
+  if (Unwind)
+    CurFrame->HandlesUnwind = true;
+  if (Except)
+    CurFrame->HandlesExceptions = true;
+}
+
+void MCStreamer::EmitWin64EHHandlerData() {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  if (CurFrame->ChainedParent)
+    report_fatal_error("Chained unwind areas can't have handlers!");
+}
+
+void MCStreamer::EmitWin64EHPushReg(unsigned Register) {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  MCSymbol *Label = getContext().CreateTempSymbol();
+  MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register);
+  EmitLabel(Label);
+  CurFrame->Instructions.push_back(Inst);
+}
+
+void MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  if (CurFrame->LastFrameInst >= 0)
+    report_fatal_error("Frame register and offset already specified!");
+  if (Offset & 0x0F)
+    report_fatal_error("Misaligned frame pointer offset!");
+  MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, 0, Register, Offset);
+  CurFrame->LastFrameInst = CurFrame->Instructions.size();
+  CurFrame->Instructions.push_back(Inst);
+}
+
+void MCStreamer::EmitWin64EHAllocStack(unsigned Size) {
+  EnsureValidW64UnwindInfo();
+  if (Size & 7)
+    report_fatal_error("Misaligned stack allocation!");
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  MCSymbol *Label = getContext().CreateTempSymbol();
+  MCWin64EHInstruction Inst(Label, Size);
+  EmitLabel(Label);
+  CurFrame->Instructions.push_back(Inst);
+}
+
+void MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
+  EnsureValidW64UnwindInfo();
+  if (Offset & 7)
+    report_fatal_error("Misaligned saved register offset!");
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  MCSymbol *Label = getContext().CreateTempSymbol();
+  MCWin64EHInstruction Inst(
+     Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol,
+                            Label, Register, Offset);
+  EmitLabel(Label);
+  CurFrame->Instructions.push_back(Inst);
+}
+
+void MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
+  EnsureValidW64UnwindInfo();
+  if (Offset & 0x0F)
+    report_fatal_error("Misaligned saved vector register offset!");
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  MCSymbol *Label = getContext().CreateTempSymbol();
+  MCWin64EHInstruction Inst(
+    Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128,
+                            Label, Register, Offset);
+  EmitLabel(Label);
+  CurFrame->Instructions.push_back(Inst);
+}
+
+void MCStreamer::EmitWin64EHPushFrame(bool Code) {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  if (CurFrame->Instructions.size() > 0)
+    report_fatal_error("If present, PushMachFrame must be the first UOP");
+  MCSymbol *Label = getContext().CreateTempSymbol();
+  MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code);
+  EmitLabel(Label);
+  CurFrame->Instructions.push_back(Inst);
+}
+
+void MCStreamer::EmitWin64EHEndProlog() {
+  EnsureValidW64UnwindInfo();
+  MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
+  CurFrame->PrologEnd = getContext().CreateTempSymbol();
+  EmitLabel(CurFrame->PrologEnd);
+}
+
+void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+  llvm_unreachable("This file format doesn't support this directive");
+}
+
+void MCStreamer::EmitFnStart() {
+  errs() << "Not implemented yet\n";
+  abort();
+}
+
+void MCStreamer::EmitFnEnd() {
+  errs() << "Not implemented yet\n";
+  abort();
+}
+
+void MCStreamer::EmitCantUnwind() {
+  errs() << "Not implemented yet\n";
+  abort();
+}
+
+void MCStreamer::EmitHandlerData() {
+  errs() << "Not implemented yet\n";
+  abort();
+}
+
+void MCStreamer::EmitPersonality(const MCSymbol *Personality) {
+  errs() << "Not implemented yet\n";
+  abort();
+}
+
+void MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) {
+  errs() << "Not implemented yet\n";
+  abort();
+}
+
+void MCStreamer::EmitPad(int64_t Offset) {
+  errs() << "Not implemented yet\n";
+  abort();
+}
+
+void MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) {
+  errs() << "Not implemented yet\n";
+  abort();
+}
+
+void MCStreamer::EmitTCEntry(const MCSymbol &S) {
+  llvm_unreachable("Unsupported method");
+}
+
+/// EmitRawText - If this file is backed by an assembly streamer, this dumps
+/// the specified string in the output .s file.  This capability is
+/// indicated by the hasRawTextSupport() predicate.
+void MCStreamer::EmitRawText(StringRef String) {
+  errs() << "EmitRawText called on an MCStreamer that doesn't support it, "
+  " something must not be fully mc'ized\n";
+  abort();
+}
+
+void MCStreamer::EmitRawText(const Twine &T) {
+  SmallString<128> Str;
+  T.toVector(Str);
+  EmitRawText(Str.str());
+}
+
+void MCStreamer::EmitFrames(bool usingCFI) {
+  if (!getNumFrameInfos())
+    return;
+
+  if (EmitEHFrame)
+    MCDwarfFrameEmitter::Emit(*this, usingCFI, true);
+
+  if (EmitDebugFrame)
+    MCDwarfFrameEmitter::Emit(*this, usingCFI, false);
+}
+
+void MCStreamer::EmitW64Tables() {
+  if (!getNumW64UnwindInfos())
+    return;
+
+  MCWin64EHUnwindEmitter::Emit(*this);
+}
+
+void MCStreamer::Finish() {
+  if (!FrameInfos.empty() && !FrameInfos.back().End)
+    report_fatal_error("Unfinished frame!");
+
+  FinishImpl();
+}
+
+MCSymbolData &MCStreamer::getOrCreateSymbolData(MCSymbol *Symbol) {
+  report_fatal_error("Not supported!");
+  return *(static_cast<MCSymbolData*>(0));
+}