1 //===- lib/MC/MCAsmStreamer.cpp - Text Assembly 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/MC/MCAsmInfo.h"
12 #include "llvm/MC/MCCodeEmitter.h"
13 #include "llvm/MC/MCContext.h"
14 #include "llvm/MC/MCExpr.h"
15 #include "llvm/MC/MCInst.h"
16 #include "llvm/MC/MCInstPrinter.h"
17 #include "llvm/MC/MCSectionMachO.h"
18 #include "llvm/MC/MCSymbol.h"
19 #include "llvm/ADT/OwningPtr.h"
20 #include "llvm/ADT/SmallString.h"
21 #include "llvm/ADT/Twine.h"
22 #include "llvm/Support/ErrorHandling.h"
23 #include "llvm/Support/MathExtras.h"
24 #include "llvm/Support/Format.h"
25 #include "llvm/Support/FormattedStream.h"
30 class MCAsmStreamer : public MCStreamer {
31 formatted_raw_ostream &OS;
33 OwningPtr<MCInstPrinter> InstPrinter;
34 OwningPtr<MCCodeEmitter> Emitter;
36 SmallString<128> CommentToEmit;
37 raw_svector_ostream CommentStream;
39 unsigned IsLittleEndian : 1;
40 unsigned IsVerboseAsm : 1;
41 unsigned ShowInst : 1;
44 MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
45 bool isLittleEndian, bool isVerboseAsm, MCInstPrinter *printer,
46 MCCodeEmitter *emitter, bool showInst)
47 : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
48 InstPrinter(printer), Emitter(emitter), CommentStream(CommentToEmit),
49 IsLittleEndian(isLittleEndian), IsVerboseAsm(isVerboseAsm),
51 if (InstPrinter && IsVerboseAsm)
52 InstPrinter->setCommentStream(CommentStream);
56 bool isLittleEndian() const { return IsLittleEndian; }
58 inline void EmitEOL() {
59 // If we don't have any comments, just emit a \n.
66 void EmitCommentsAndEOL();
68 /// isVerboseAsm - Return true if this streamer supports verbose assembly at
70 virtual bool isVerboseAsm() const { return IsVerboseAsm; }
72 /// hasRawTextSupport - We support EmitRawText.
73 virtual bool hasRawTextSupport() const { return true; }
75 /// AddComment - Add a comment that can be emitted to the generated .s
76 /// file if applicable as a QoI issue to make the output of the compiler
77 /// more readable. This only affects the MCAsmStreamer, and only when
78 /// verbose assembly output is enabled.
79 virtual void AddComment(const Twine &T);
81 /// AddEncodingComment - Add a comment showing the encoding of an instruction.
82 virtual void AddEncodingComment(const MCInst &Inst);
84 /// GetCommentOS - Return a raw_ostream that comments can be written to.
85 /// Unlike AddComment, you are required to terminate comments with \n if you
87 virtual raw_ostream &GetCommentOS() {
89 return nulls(); // Discard comments unless in verbose asm mode.
93 /// AddBlankLine - Emit a blank line to a .s file to pretty it up.
94 virtual void AddBlankLine() {
98 /// @name MCStreamer Interface
101 virtual void SwitchSection(const MCSection *Section);
103 virtual void InitSections() {
104 // FIXME, this is MachO specific, but the testsuite
106 SwitchSection(getContext().getMachOSection("__TEXT", "__text",
107 MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
108 0, SectionKind::getText()));
111 virtual void EmitLabel(MCSymbol *Symbol);
113 virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
115 virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
117 virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
119 virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
120 virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
121 virtual void EmitCOFFSymbolStorageClass(int StorageClass);
122 virtual void EmitCOFFSymbolType(int Type);
123 virtual void EndCOFFSymbolDef();
124 virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
125 virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
126 unsigned ByteAlignment);
128 /// EmitLocalCommonSymbol - Emit a local common (.lcomm) symbol.
130 /// @param Symbol - The common symbol to emit.
131 /// @param Size - The size of the common symbol.
132 virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size);
134 virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
135 unsigned Size = 0, unsigned ByteAlignment = 0);
137 virtual void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
138 uint64_t Size, unsigned ByteAlignment = 0);
140 virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
142 virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
143 virtual void EmitIntValue(uint64_t Value, unsigned Size, unsigned AddrSpace);
144 virtual void EmitGPRel32Value(const MCExpr *Value);
147 virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
150 virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
151 unsigned ValueSize = 1,
152 unsigned MaxBytesToEmit = 0);
154 virtual void EmitCodeAlignment(unsigned ByteAlignment,
155 unsigned MaxBytesToEmit = 0);
157 virtual void EmitValueToOffset(const MCExpr *Offset,
158 unsigned char Value = 0);
160 virtual void EmitFileDirective(StringRef Filename);
161 virtual void EmitDwarfFileDirective(unsigned FileNo, StringRef Filename);
163 virtual void EmitInstruction(const MCInst &Inst);
165 /// EmitRawText - If this file is backed by an assembly streamer, this dumps
166 /// the specified string in the output .s file. This capability is
167 /// indicated by the hasRawTextSupport() predicate.
168 virtual void EmitRawText(StringRef String);
170 virtual void Finish();
175 } // end anonymous namespace.
177 /// AddComment - Add a comment that can be emitted to the generated .s
178 /// file if applicable as a QoI issue to make the output of the compiler
179 /// more readable. This only affects the MCAsmStreamer, and only when
180 /// verbose assembly output is enabled.
181 void MCAsmStreamer::AddComment(const Twine &T) {
182 if (!IsVerboseAsm) return;
184 // Make sure that CommentStream is flushed.
185 CommentStream.flush();
187 T.toVector(CommentToEmit);
188 // Each comment goes on its own line.
189 CommentToEmit.push_back('\n');
191 // Tell the comment stream that the vector changed underneath it.
192 CommentStream.resync();
195 void MCAsmStreamer::EmitCommentsAndEOL() {
196 if (CommentToEmit.empty() && CommentStream.GetNumBytesInBuffer() == 0) {
201 CommentStream.flush();
202 StringRef Comments = CommentToEmit.str();
204 assert(Comments.back() == '\n' &&
205 "Comment array not newline terminated");
207 // Emit a line of comments.
208 OS.PadToColumn(MAI.getCommentColumn());
209 size_t Position = Comments.find('\n');
210 OS << MAI.getCommentString() << ' ' << Comments.substr(0, Position) << '\n';
212 Comments = Comments.substr(Position+1);
213 } while (!Comments.empty());
215 CommentToEmit.clear();
216 // Tell the comment stream that the vector changed underneath it.
217 CommentStream.resync();
220 static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) {
221 assert(Bytes && "Invalid size!");
222 return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
225 void MCAsmStreamer::SwitchSection(const MCSection *Section) {
226 assert(Section && "Cannot switch to a null section!");
227 if (Section != CurSection) {
228 PrevSection = CurSection;
229 CurSection = Section;
230 Section->PrintSwitchToSection(MAI, OS);
234 void MCAsmStreamer::EmitLabel(MCSymbol *Symbol) {
235 assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
236 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
237 assert(CurSection && "Cannot emit before setting section!");
239 OS << *Symbol << MAI.getLabelSuffix();
241 Symbol->setSection(*CurSection);
244 void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
246 default: assert(0 && "Invalid flag!");
247 case MCAF_SyntaxUnified: OS << "\t.syntax unified"; break;
248 case MCAF_SubsectionsViaSymbols: OS << ".subsections_via_symbols"; break;
253 void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
254 OS << *Symbol << " = " << *Value;
257 // FIXME: Lift context changes into super class.
258 Symbol->setVariableValue(Value);
261 void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
262 MCSymbolAttr Attribute) {
264 case MCSA_Invalid: assert(0 && "Invalid symbol attribute");
265 case MCSA_ELF_TypeFunction: /// .type _foo, STT_FUNC # aka @function
266 case MCSA_ELF_TypeIndFunction: /// .type _foo, STT_GNU_IFUNC
267 case MCSA_ELF_TypeObject: /// .type _foo, STT_OBJECT # aka @object
268 case MCSA_ELF_TypeTLS: /// .type _foo, STT_TLS # aka @tls_object
269 case MCSA_ELF_TypeCommon: /// .type _foo, STT_COMMON # aka @common
270 case MCSA_ELF_TypeNoType: /// .type _foo, STT_NOTYPE # aka @notype
271 assert(MAI.hasDotTypeDotSizeDirective() && "Symbol Attr not supported");
272 OS << "\t.type\t" << *Symbol << ','
273 << ((MAI.getCommentString()[0] != '@') ? '@' : '%');
275 default: assert(0 && "Unknown ELF .type");
276 case MCSA_ELF_TypeFunction: OS << "function"; break;
277 case MCSA_ELF_TypeIndFunction: OS << "gnu_indirect_function"; break;
278 case MCSA_ELF_TypeObject: OS << "object"; break;
279 case MCSA_ELF_TypeTLS: OS << "tls_object"; break;
280 case MCSA_ELF_TypeCommon: OS << "common"; break;
281 case MCSA_ELF_TypeNoType: OS << "no_type"; break;
285 case MCSA_Global: // .globl/.global
286 OS << MAI.getGlobalDirective();
288 case MCSA_Hidden: OS << "\t.hidden\t"; break;
289 case MCSA_IndirectSymbol: OS << "\t.indirect_symbol\t"; break;
290 case MCSA_Internal: OS << "\t.internal\t"; break;
291 case MCSA_LazyReference: OS << "\t.lazy_reference\t"; break;
292 case MCSA_Local: OS << "\t.local\t"; break;
293 case MCSA_NoDeadStrip: OS << "\t.no_dead_strip\t"; break;
294 case MCSA_PrivateExtern: OS << "\t.private_extern\t"; break;
295 case MCSA_Protected: OS << "\t.protected\t"; break;
296 case MCSA_Reference: OS << "\t.reference\t"; break;
297 case MCSA_Weak: OS << "\t.weak\t"; break;
298 case MCSA_WeakDefinition: OS << "\t.weak_definition\t"; break;
300 case MCSA_WeakReference: OS << MAI.getWeakRefDirective(); break;
301 case MCSA_WeakDefAutoPrivate: OS << "\t.weak_def_can_be_hidden\t"; break;
308 void MCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
309 OS << ".desc" << ' ' << *Symbol << ',' << DescValue;
313 void MCAsmStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {
314 OS << "\t.def\t " << *Symbol << ';';
318 void MCAsmStreamer::EmitCOFFSymbolStorageClass (int StorageClass) {
319 OS << "\t.scl\t" << StorageClass << ';';
323 void MCAsmStreamer::EmitCOFFSymbolType (int Type) {
324 OS << "\t.type\t" << Type << ';';
328 void MCAsmStreamer::EndCOFFSymbolDef() {
333 void MCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
334 assert(MAI.hasDotTypeDotSizeDirective());
335 OS << "\t.size\t" << *Symbol << ", " << *Value << '\n';
338 void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
339 unsigned ByteAlignment) {
340 OS << "\t.comm\t" << *Symbol << ',' << Size;
341 if (ByteAlignment != 0) {
342 if (MAI.getCOMMDirectiveAlignmentIsInBytes())
343 OS << ',' << ByteAlignment;
345 OS << ',' << Log2_32(ByteAlignment);
350 /// EmitLocalCommonSymbol - Emit a local common (.lcomm) symbol.
352 /// @param Symbol - The common symbol to emit.
353 /// @param Size - The size of the common symbol.
354 void MCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {
355 assert(MAI.hasLCOMMDirective() && "Doesn't have .lcomm, can't emit it!");
356 OS << "\t.lcomm\t" << *Symbol << ',' << Size;
360 void MCAsmStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
361 unsigned Size, unsigned ByteAlignment) {
362 // Note: a .zerofill directive does not switch sections.
365 // This is a mach-o specific directive.
366 const MCSectionMachO *MOSection = ((const MCSectionMachO*)Section);
367 OS << MOSection->getSegmentName() << "," << MOSection->getSectionName();
369 if (Symbol != NULL) {
370 OS << ',' << *Symbol << ',' << Size;
371 if (ByteAlignment != 0)
372 OS << ',' << Log2_32(ByteAlignment);
377 // .tbss sym, size, align
378 // This depends that the symbol has already been mangled from the original,
380 void MCAsmStreamer::EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
381 uint64_t Size, unsigned ByteAlignment) {
382 assert(Symbol != NULL && "Symbol shouldn't be NULL!");
383 // Instead of using the Section we'll just use the shortcut.
384 // This is a mach-o specific directive and section.
385 OS << ".tbss " << *Symbol << ", " << Size;
387 // Output align if we have it. We default to 1 so don't bother printing
389 if (ByteAlignment > 1) OS << ", " << Log2_32(ByteAlignment);
394 static inline char toOctal(int X) { return (X&7)+'0'; }
396 static void PrintQuotedString(StringRef Data, raw_ostream &OS) {
399 for (unsigned i = 0, e = Data.size(); i != e; ++i) {
400 unsigned char C = Data[i];
401 if (C == '"' || C == '\\') {
402 OS << '\\' << (char)C;
406 if (isprint((unsigned char)C)) {
412 case '\b': OS << "\\b"; break;
413 case '\f': OS << "\\f"; break;
414 case '\n': OS << "\\n"; break;
415 case '\r': OS << "\\r"; break;
416 case '\t': OS << "\\t"; break;
419 OS << toOctal(C >> 6);
420 OS << toOctal(C >> 3);
421 OS << toOctal(C >> 0);
430 void MCAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
431 assert(CurSection && "Cannot emit contents before setting section!");
432 if (Data.empty()) return;
434 if (Data.size() == 1) {
435 OS << MAI.getData8bitsDirective(AddrSpace);
436 OS << (unsigned)(unsigned char)Data[0];
441 // If the data ends with 0 and the target supports .asciz, use it, otherwise
443 if (MAI.getAscizDirective() && Data.back() == 0) {
444 OS << MAI.getAscizDirective();
445 Data = Data.substr(0, Data.size()-1);
447 OS << MAI.getAsciiDirective();
451 PrintQuotedString(Data, OS);
455 /// EmitIntValue - Special case of EmitValue that avoids the client having
456 /// to pass in a MCExpr for constant integers.
457 void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size,
458 unsigned AddrSpace) {
459 assert(CurSection && "Cannot emit contents before setting section!");
460 const char *Directive = 0;
463 case 1: Directive = MAI.getData8bitsDirective(AddrSpace); break;
464 case 2: Directive = MAI.getData16bitsDirective(AddrSpace); break;
465 case 4: Directive = MAI.getData32bitsDirective(AddrSpace); break;
467 Directive = MAI.getData64bitsDirective(AddrSpace);
468 // If the target doesn't support 64-bit data, emit as two 32-bit halves.
469 if (Directive) break;
470 if (isLittleEndian()) {
471 EmitIntValue((uint32_t)(Value >> 0 ), 4, AddrSpace);
472 EmitIntValue((uint32_t)(Value >> 32), 4, AddrSpace);
474 EmitIntValue((uint32_t)(Value >> 32), 4, AddrSpace);
475 EmitIntValue((uint32_t)(Value >> 0 ), 4, AddrSpace);
480 assert(Directive && "Invalid size for machine code value!");
481 OS << Directive << truncateToSize(Value, Size);
485 void MCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size,
486 unsigned AddrSpace) {
487 assert(CurSection && "Cannot emit contents before setting section!");
488 const char *Directive = 0;
491 case 1: Directive = MAI.getData8bitsDirective(AddrSpace); break;
492 case 2: Directive = MAI.getData16bitsDirective(AddrSpace); break;
493 case 4: Directive = MAI.getData32bitsDirective(AddrSpace); break;
494 case 8: Directive = MAI.getData64bitsDirective(AddrSpace); break;
497 assert(Directive && "Invalid size for machine code value!");
498 OS << Directive << *Value;
502 void MCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
503 assert(MAI.getGPRel32Directive() != 0);
504 OS << MAI.getGPRel32Directive() << *Value;
509 /// EmitFill - Emit NumBytes bytes worth of the value specified by
510 /// FillValue. This implements directives such as '.space'.
511 void MCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
512 unsigned AddrSpace) {
513 if (NumBytes == 0) return;
516 if (const char *ZeroDirective = MAI.getZeroDirective()) {
517 OS << ZeroDirective << NumBytes;
519 OS << ',' << (int)FillValue;
524 // Emit a byte at a time.
525 MCStreamer::EmitFill(NumBytes, FillValue, AddrSpace);
528 void MCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
530 unsigned MaxBytesToEmit) {
531 // Some assemblers don't support non-power of two alignments, so we always
532 // emit alignments as a power of two if possible.
533 if (isPowerOf2_32(ByteAlignment)) {
535 default: llvm_unreachable("Invalid size for machine code value!");
536 case 1: OS << MAI.getAlignDirective(); break;
537 // FIXME: use MAI for this!
538 case 2: OS << ".p2alignw "; break;
539 case 4: OS << ".p2alignl "; break;
540 case 8: llvm_unreachable("Unsupported alignment size!");
543 if (MAI.getAlignmentIsInBytes())
546 OS << Log2_32(ByteAlignment);
548 if (Value || MaxBytesToEmit) {
550 OS.write_hex(truncateToSize(Value, ValueSize));
553 OS << ", " << MaxBytesToEmit;
559 // Non-power of two alignment. This is not widely supported by assemblers.
560 // FIXME: Parameterize this based on MAI.
562 default: llvm_unreachable("Invalid size for machine code value!");
563 case 1: OS << ".balign"; break;
564 case 2: OS << ".balignw"; break;
565 case 4: OS << ".balignl"; break;
566 case 8: llvm_unreachable("Unsupported alignment size!");
569 OS << ' ' << ByteAlignment;
570 OS << ", " << truncateToSize(Value, ValueSize);
572 OS << ", " << MaxBytesToEmit;
576 void MCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
577 unsigned MaxBytesToEmit) {
578 // Emit with a text fill value.
579 EmitValueToAlignment(ByteAlignment, MAI.getTextAlignFillValue(),
583 void MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
584 unsigned char Value) {
585 // FIXME: Verify that Offset is associated with the current section.
586 OS << ".org " << *Offset << ", " << (unsigned) Value;
591 void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
592 assert(MAI.hasSingleParameterDotFile());
594 PrintQuotedString(Filename, OS);
598 void MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Filename){
599 OS << "\t.file\t" << FileNo << ' ';
600 PrintQuotedString(Filename, OS);
604 void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) {
605 raw_ostream &OS = GetCommentOS();
606 SmallString<256> Code;
607 SmallVector<MCFixup, 4> Fixups;
608 raw_svector_ostream VecOS(Code);
609 Emitter->EncodeInstruction(Inst, VecOS, Fixups);
612 // If we are showing fixups, create symbolic markers in the encoded
613 // representation. We do this by making a per-bit map to the fixup item index,
614 // then trying to display it as nicely as possible.
615 SmallVector<uint8_t, 64> FixupMap;
616 FixupMap.resize(Code.size() * 8);
617 for (unsigned i = 0, e = Code.size() * 8; i != e; ++i)
620 for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
621 MCFixup &F = Fixups[i];
622 const MCFixupKindInfo &Info = Emitter->getFixupKindInfo(F.getKind());
623 for (unsigned j = 0; j != Info.TargetSize; ++j) {
624 unsigned Index = F.getOffset() * 8 + Info.TargetOffset + j;
625 assert(Index < Code.size() * 8 && "Invalid offset in fixup!");
626 FixupMap[Index] = 1 + i;
631 for (unsigned i = 0, e = Code.size(); i != e; ++i) {
635 // See if all bits are the same map entry.
636 uint8_t MapEntry = FixupMap[i * 8 + 0];
637 for (unsigned j = 1; j != 8; ++j) {
638 if (FixupMap[i * 8 + j] == MapEntry)
641 MapEntry = uint8_t(~0U);
645 if (MapEntry != uint8_t(~0U)) {
647 OS << format("0x%02x", uint8_t(Code[i]));
649 assert(Code[i] == 0 && "Encoder wrote into fixed up bit!");
650 OS << char('A' + MapEntry - 1);
653 // Otherwise, write out in binary.
655 for (unsigned j = 8; j--;) {
656 unsigned Bit = (Code[i] >> j) & 1;
657 if (uint8_t MapEntry = FixupMap[i * 8 + j]) {
658 assert(Bit == 0 && "Encoder wrote into fixed up bit!");
659 OS << char('A' + MapEntry - 1);
667 for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
668 MCFixup &F = Fixups[i];
669 const MCFixupKindInfo &Info = Emitter->getFixupKindInfo(F.getKind());
670 OS << " fixup " << char('A' + i) << " - " << "offset: " << F.getOffset()
671 << ", value: " << *F.getValue() << ", kind: " << Info.Name << "\n";
675 void MCAsmStreamer::EmitInstruction(const MCInst &Inst) {
676 assert(CurSection && "Cannot emit contents before setting section!");
678 // Show the encoding in a comment if we have a code emitter.
680 AddEncodingComment(Inst);
682 // Show the MCInst if enabled.
684 Inst.dump_pretty(GetCommentOS(), &MAI, InstPrinter.get(), "\n ");
685 GetCommentOS() << "\n";
688 // If we have an AsmPrinter, use that to print, otherwise print the MCInst.
690 InstPrinter->printInst(&Inst, OS);
692 Inst.print(OS, &MAI);
696 /// EmitRawText - If this file is backed by an assembly streamer, this dumps
697 /// the specified string in the output .s file. This capability is
698 /// indicated by the hasRawTextSupport() predicate.
699 void MCAsmStreamer::EmitRawText(StringRef String) {
700 if (!String.empty() && String.back() == '\n')
701 String = String.substr(0, String.size()-1);
706 void MCAsmStreamer::Finish() {
709 MCStreamer *llvm::createAsmStreamer(MCContext &Context,
710 formatted_raw_ostream &OS,
712 bool isVerboseAsm, MCInstPrinter *IP,
713 MCCodeEmitter *CE, bool ShowInst) {
714 return new MCAsmStreamer(Context, OS, isLittleEndian, isVerboseAsm,