1 //===- lib/MC/MCStreamer.cpp - Streaming Machine Code Output --------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/MC/MCStreamer.h"
11 #include "llvm/ADT/SmallString.h"
12 #include "llvm/ADT/Twine.h"
13 #include "llvm/MC/MCAsmInfo.h"
14 #include "llvm/MC/MCContext.h"
15 #include "llvm/MC/MCExpr.h"
16 #include "llvm/MC/MCObjectWriter.h"
17 #include "llvm/MC/MCSymbol.h"
18 #include "llvm/Support/ErrorHandling.h"
19 #include "llvm/Support/LEB128.h"
20 #include "llvm/Support/raw_ostream.h"
24 MCStreamer::MCStreamer(StreamerKind Kind, MCContext &Ctx)
25 : Kind(Kind), Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
26 CurrentW64UnwindInfo(0), LastSymbol(0), AutoInitSections(false) {
27 const MCSection *section = 0;
28 SectionStack.push_back(std::make_pair(section, section));
31 MCStreamer::~MCStreamer() {
32 for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
33 delete W64UnwindInfos[i];
36 void MCStreamer::reset() {
37 for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
38 delete W64UnwindInfos[i];
40 EmitDebugFrame = false;
41 CurrentW64UnwindInfo = 0;
43 const MCSection *section = 0;
45 SectionStack.push_back(std::make_pair(section, section));
48 const MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context,
51 MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
53 MCSymbolRefExpr::Create(A, Variant, Context);
55 MCSymbolRefExpr::Create(B, Variant, Context);
56 const MCExpr *AddrDelta =
57 MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context);
61 const MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) {
62 if (Context.getAsmInfo().hasAggressiveSymbolFolding() ||
63 isa<MCSymbolRefExpr>(Expr))
66 MCSymbol *ABS = Context.CreateTempSymbol();
67 EmitAssignment(ABS, Expr);
68 return MCSymbolRefExpr::Create(ABS, Context);
71 raw_ostream &MCStreamer::GetCommentOS() {
72 // By default, discard comments.
76 void MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta,
77 const MCSymbol *Label, int PointerSize) {
78 // emit the sequence to set the address
79 EmitIntValue(dwarf::DW_LNS_extended_op, 1);
80 EmitULEB128IntValue(PointerSize + 1);
81 EmitIntValue(dwarf::DW_LNE_set_address, 1);
82 EmitSymbolValue(Label, PointerSize);
84 // emit the sequence for the LineDelta (from 1) and a zero address delta.
85 MCDwarfLineAddr::Emit(this, LineDelta, 0);
88 /// EmitIntValue - Special case of EmitValue that avoids the client having to
89 /// pass in a MCExpr for constant integers.
90 void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size,
92 assert(Size <= 8 && "Invalid size");
93 assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) &&
96 const bool isLittleEndian = Context.getAsmInfo().isLittleEndian();
97 for (unsigned i = 0; i != Size; ++i) {
98 unsigned index = isLittleEndian ? i : (Size - i - 1);
99 buf[i] = uint8_t(Value >> (index * 8));
101 EmitBytes(StringRef(buf, Size), AddrSpace);
104 /// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
105 /// client having to pass in a MCExpr for constant integers.
106 void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned Padding,
107 unsigned AddrSpace) {
108 SmallString<128> Tmp;
109 raw_svector_ostream OSE(Tmp);
110 encodeULEB128(Value, OSE, Padding);
111 EmitBytes(OSE.str(), AddrSpace);
114 /// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
115 /// client having to pass in a MCExpr for constant integers.
116 void MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) {
117 SmallString<128> Tmp;
118 raw_svector_ostream OSE(Tmp);
119 encodeSLEB128(Value, OSE);
120 EmitBytes(OSE.str(), AddrSpace);
123 void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size,
124 unsigned AddrSpace) {
125 const MCExpr *ABS = ForceExpAbs(Value);
126 EmitValue(ABS, Size, AddrSpace);
130 void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size,
131 unsigned AddrSpace) {
132 EmitValueImpl(Value, Size, AddrSpace);
135 void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
136 unsigned AddrSpace) {
137 EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size,
141 void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
142 report_fatal_error("unsupported directive in streamer");
145 void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
146 report_fatal_error("unsupported directive in streamer");
149 /// EmitFill - Emit NumBytes bytes worth of the value specified by
150 /// FillValue. This implements directives such as '.space'.
151 void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
152 unsigned AddrSpace) {
153 const MCExpr *E = MCConstantExpr::Create(FillValue, getContext());
154 for (uint64_t i = 0, e = NumBytes; i != e; ++i)
155 EmitValue(E, 1, AddrSpace);
158 bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
160 StringRef Filename, unsigned CUID) {
161 return getContext().GetDwarfFile(Directory, Filename, FileNo, CUID) == 0;
164 void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
165 unsigned Column, unsigned Flags,
167 unsigned Discriminator,
168 StringRef FileName) {
169 getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa,
173 MCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() {
174 if (FrameInfos.empty())
176 return &FrameInfos.back();
179 void MCStreamer::EnsureValidFrame() {
180 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
181 if (!CurFrame || CurFrame->End)
182 report_fatal_error("No open frame");
185 void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
186 MCSymbol *EHSymbol) {
189 void MCStreamer::EmitLabel(MCSymbol *Symbol) {
190 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
191 assert(getCurrentSection() && "Cannot emit before setting section!");
192 Symbol->setSection(*getCurrentSection());
196 void MCStreamer::EmitDebugLabel(MCSymbol *Symbol) {
197 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
198 assert(getCurrentSection() && "Cannot emit before setting section!");
199 Symbol->setSection(*getCurrentSection());
203 void MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) {
205 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
206 CurFrame->CompactUnwindEncoding = CompactUnwindEncoding;
209 void MCStreamer::EmitCFISections(bool EH, bool Debug) {
212 EmitDebugFrame = Debug;
215 void MCStreamer::EmitCFIStartProc() {
216 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
217 if (CurFrame && !CurFrame->End)
218 report_fatal_error("Starting a frame before finishing the previous one!");
220 MCDwarfFrameInfo Frame;
221 EmitCFIStartProcImpl(Frame);
223 FrameInfos.push_back(Frame);
226 void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
229 void MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) {
230 Frame.Function = LastSymbol;
231 // If the function is externally visible, we need to create a local
232 // symbol to avoid relocations.
233 StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix();
234 if (LastSymbol && LastSymbol->getName().startswith(Prefix)) {
235 Frame.Begin = LastSymbol;
237 Frame.Begin = getContext().CreateTempSymbol();
238 EmitLabel(Frame.Begin);
242 void MCStreamer::EmitCFIEndProc() {
244 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
245 EmitCFIEndProcImpl(*CurFrame);
248 void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
251 void MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) {
252 Frame.End = getContext().CreateTempSymbol();
253 EmitLabel(Frame.End);
256 MCSymbol *MCStreamer::EmitCFICommon() {
258 MCSymbol *Label = getContext().CreateTempSymbol();
263 void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
264 MCSymbol *Label = EmitCFICommon();
265 MCCFIInstruction Instruction =
266 MCCFIInstruction::createDefCfa(Label, Register, Offset);
267 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
268 CurFrame->Instructions.push_back(Instruction);
271 void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
272 MCSymbol *Label = EmitCFICommon();
273 MCCFIInstruction Instruction =
274 MCCFIInstruction::createDefCfaOffset(Label, Offset);
275 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
276 CurFrame->Instructions.push_back(Instruction);
279 void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
280 MCSymbol *Label = EmitCFICommon();
281 MCCFIInstruction Instruction =
282 MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment);
283 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
284 CurFrame->Instructions.push_back(Instruction);
287 void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
288 MCSymbol *Label = EmitCFICommon();
289 MCCFIInstruction Instruction =
290 MCCFIInstruction::createDefCfaRegister(Label, Register);
291 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
292 CurFrame->Instructions.push_back(Instruction);
295 void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
296 MCSymbol *Label = EmitCFICommon();
297 MCCFIInstruction Instruction =
298 MCCFIInstruction::createOffset(Label, Register, Offset);
299 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
300 CurFrame->Instructions.push_back(Instruction);
303 void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
304 MCSymbol *Label = EmitCFICommon();
305 MCCFIInstruction Instruction =
306 MCCFIInstruction::createRelOffset(Label, Register, Offset);
307 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
308 CurFrame->Instructions.push_back(Instruction);
311 void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
314 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
315 CurFrame->Personality = Sym;
316 CurFrame->PersonalityEncoding = Encoding;
319 void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
321 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
322 CurFrame->Lsda = Sym;
323 CurFrame->LsdaEncoding = Encoding;
326 void MCStreamer::EmitCFIRememberState() {
327 MCSymbol *Label = EmitCFICommon();
328 MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label);
329 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
330 CurFrame->Instructions.push_back(Instruction);
333 void MCStreamer::EmitCFIRestoreState() {
334 // FIXME: Error if there is no matching cfi_remember_state.
335 MCSymbol *Label = EmitCFICommon();
336 MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label);
337 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
338 CurFrame->Instructions.push_back(Instruction);
341 void MCStreamer::EmitCFISameValue(int64_t Register) {
342 MCSymbol *Label = EmitCFICommon();
343 MCCFIInstruction Instruction =
344 MCCFIInstruction::createSameValue(Label, Register);
345 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
346 CurFrame->Instructions.push_back(Instruction);
349 void MCStreamer::EmitCFIRestore(int64_t Register) {
350 MCSymbol *Label = EmitCFICommon();
351 MCCFIInstruction Instruction =
352 MCCFIInstruction::createRestore(Label, Register);
353 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
354 CurFrame->Instructions.push_back(Instruction);
357 void MCStreamer::EmitCFIEscape(StringRef Values) {
358 MCSymbol *Label = EmitCFICommon();
359 MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values);
360 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
361 CurFrame->Instructions.push_back(Instruction);
364 void MCStreamer::EmitCFISignalFrame() {
366 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
367 CurFrame->IsSignalFrame = true;
370 void MCStreamer::EmitCFIUndefined(int64_t Register) {
371 MCSymbol *Label = EmitCFICommon();
372 MCCFIInstruction Instruction =
373 MCCFIInstruction::createUndefined(Label, Register);
374 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
375 CurFrame->Instructions.push_back(Instruction);
378 void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
379 MCSymbol *Label = EmitCFICommon();
380 MCCFIInstruction Instruction =
381 MCCFIInstruction::createRegister(Label, Register1, Register2);
382 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
383 CurFrame->Instructions.push_back(Instruction);
386 void MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) {
387 W64UnwindInfos.push_back(Frame);
388 CurrentW64UnwindInfo = W64UnwindInfos.back();
391 void MCStreamer::EnsureValidW64UnwindInfo() {
392 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
393 if (!CurFrame || CurFrame->End)
394 report_fatal_error("No open Win64 EH frame function!");
397 void MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
398 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
399 if (CurFrame && !CurFrame->End)
400 report_fatal_error("Starting a function before ending the previous one!");
401 MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
402 Frame->Begin = getContext().CreateTempSymbol();
403 Frame->Function = Symbol;
404 EmitLabel(Frame->Begin);
405 setCurrentW64UnwindInfo(Frame);
408 void MCStreamer::EmitWin64EHEndProc() {
409 EnsureValidW64UnwindInfo();
410 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
411 if (CurFrame->ChainedParent)
412 report_fatal_error("Not all chained regions terminated!");
413 CurFrame->End = getContext().CreateTempSymbol();
414 EmitLabel(CurFrame->End);
417 void MCStreamer::EmitWin64EHStartChained() {
418 EnsureValidW64UnwindInfo();
419 MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
420 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
421 Frame->Begin = getContext().CreateTempSymbol();
422 Frame->Function = CurFrame->Function;
423 Frame->ChainedParent = CurFrame;
424 EmitLabel(Frame->Begin);
425 setCurrentW64UnwindInfo(Frame);
428 void MCStreamer::EmitWin64EHEndChained() {
429 EnsureValidW64UnwindInfo();
430 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
431 if (!CurFrame->ChainedParent)
432 report_fatal_error("End of a chained region outside a chained region!");
433 CurFrame->End = getContext().CreateTempSymbol();
434 EmitLabel(CurFrame->End);
435 CurrentW64UnwindInfo = CurFrame->ChainedParent;
438 void MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
440 EnsureValidW64UnwindInfo();
441 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
442 if (CurFrame->ChainedParent)
443 report_fatal_error("Chained unwind areas can't have handlers!");
444 CurFrame->ExceptionHandler = Sym;
445 if (!Except && !Unwind)
446 report_fatal_error("Don't know what kind of handler this is!");
448 CurFrame->HandlesUnwind = true;
450 CurFrame->HandlesExceptions = true;
453 void MCStreamer::EmitWin64EHHandlerData() {
454 EnsureValidW64UnwindInfo();
455 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
456 if (CurFrame->ChainedParent)
457 report_fatal_error("Chained unwind areas can't have handlers!");
460 void MCStreamer::EmitWin64EHPushReg(unsigned Register) {
461 EnsureValidW64UnwindInfo();
462 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
463 MCSymbol *Label = getContext().CreateTempSymbol();
464 MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register);
466 CurFrame->Instructions.push_back(Inst);
469 void MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
470 EnsureValidW64UnwindInfo();
471 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
472 if (CurFrame->LastFrameInst >= 0)
473 report_fatal_error("Frame register and offset already specified!");
475 report_fatal_error("Misaligned frame pointer offset!");
476 MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, 0, Register, Offset);
477 CurFrame->LastFrameInst = CurFrame->Instructions.size();
478 CurFrame->Instructions.push_back(Inst);
481 void MCStreamer::EmitWin64EHAllocStack(unsigned Size) {
482 EnsureValidW64UnwindInfo();
484 report_fatal_error("Misaligned stack allocation!");
485 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
486 MCSymbol *Label = getContext().CreateTempSymbol();
487 MCWin64EHInstruction Inst(Label, Size);
489 CurFrame->Instructions.push_back(Inst);
492 void MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
493 EnsureValidW64UnwindInfo();
495 report_fatal_error("Misaligned saved register offset!");
496 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
497 MCSymbol *Label = getContext().CreateTempSymbol();
498 MCWin64EHInstruction Inst(
499 Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol,
500 Label, Register, Offset);
502 CurFrame->Instructions.push_back(Inst);
505 void MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
506 EnsureValidW64UnwindInfo();
508 report_fatal_error("Misaligned saved vector register offset!");
509 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
510 MCSymbol *Label = getContext().CreateTempSymbol();
511 MCWin64EHInstruction Inst(
512 Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128,
513 Label, Register, Offset);
515 CurFrame->Instructions.push_back(Inst);
518 void MCStreamer::EmitWin64EHPushFrame(bool Code) {
519 EnsureValidW64UnwindInfo();
520 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
521 if (CurFrame->Instructions.size() > 0)
522 report_fatal_error("If present, PushMachFrame must be the first UOP");
523 MCSymbol *Label = getContext().CreateTempSymbol();
524 MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code);
526 CurFrame->Instructions.push_back(Inst);
529 void MCStreamer::EmitWin64EHEndProlog() {
530 EnsureValidW64UnwindInfo();
531 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
532 CurFrame->PrologEnd = getContext().CreateTempSymbol();
533 EmitLabel(CurFrame->PrologEnd);
536 void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
537 llvm_unreachable("This file format doesn't support this directive");
540 void MCStreamer::EmitFnStart() {
541 errs() << "Not implemented yet\n";
545 void MCStreamer::EmitFnEnd() {
546 errs() << "Not implemented yet\n";
550 void MCStreamer::EmitCantUnwind() {
551 errs() << "Not implemented yet\n";
555 void MCStreamer::EmitHandlerData() {
556 errs() << "Not implemented yet\n";
560 void MCStreamer::EmitPersonality(const MCSymbol *Personality) {
561 errs() << "Not implemented yet\n";
565 void MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) {
566 errs() << "Not implemented yet\n";
570 void MCStreamer::EmitPad(int64_t Offset) {
571 errs() << "Not implemented yet\n";
575 void MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) {
576 errs() << "Not implemented yet\n";
580 void MCStreamer::EmitTCEntry(const MCSymbol &S) {
581 llvm_unreachable("Unsupported method");
584 /// EmitRawText - If this file is backed by an assembly streamer, this dumps
585 /// the specified string in the output .s file. This capability is
586 /// indicated by the hasRawTextSupport() predicate.
587 void MCStreamer::EmitRawText(StringRef String) {
588 errs() << "EmitRawText called on an MCStreamer that doesn't support it, "
589 " something must not be fully mc'ized\n";
593 void MCStreamer::EmitRawText(const Twine &T) {
594 SmallString<128> Str;
596 EmitRawText(Str.str());
599 void MCStreamer::EmitFrames(bool usingCFI) {
600 if (!getNumFrameInfos())
604 MCDwarfFrameEmitter::Emit(*this, usingCFI, true);
607 MCDwarfFrameEmitter::Emit(*this, usingCFI, false);
610 void MCStreamer::EmitW64Tables() {
611 if (!getNumW64UnwindInfos())
614 MCWin64EHUnwindEmitter::Emit(*this);
617 void MCStreamer::Finish() {
618 if (!FrameInfos.empty() && !FrameInfos.back().End)
619 report_fatal_error("Unfinished frame!");
624 MCSymbolData &MCStreamer::getOrCreateSymbolData(MCSymbol *Symbol) {
625 report_fatal_error("Not supported!");
626 return *(static_cast<MCSymbolData*>(0));