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Che-Liang Chioud77f2a42010-11-08 02:58:44 +00001//===- lib/Target/PTX/PTXMCAsmStreamer.cpp - PTX Text Assembly Output -----===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000010#include "llvm/ADT/OwningPtr.h"
11#include "llvm/ADT/SmallString.h"
12#include "llvm/ADT/Twine.h"
Che-Liang Chioud77f2a42010-11-08 02:58:44 +000013#include "llvm/MC/MCAsmInfo.h"
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000014#include "llvm/MC/MCContext.h"
15#include "llvm/MC/MCCodeEmitter.h"
Che-Liang Chioud77f2a42010-11-08 02:58:44 +000016#include "llvm/MC/MCExpr.h"
17#include "llvm/MC/MCInst.h"
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000018#include "llvm/MC/MCInstPrinter.h"
19#include "llvm/MC/MCStreamer.h"
Che-Liang Chioud77f2a42010-11-08 02:58:44 +000020#include "llvm/MC/MCSymbol.h"
Che-Liang Chioud77f2a42010-11-08 02:58:44 +000021#include "llvm/Support/ErrorHandling.h"
22#include "llvm/Support/MathExtras.h"
23#include "llvm/Support/Format.h"
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000024#include "llvm/Support/FormattedStream.h"
25#include "llvm/Support/raw_ostream.h"
Rafael Espindola89b93722010-12-10 07:39:47 +000026#include "llvm/Target/TargetAsmInfo.h"
Che-Liang Chioud77f2a42010-11-08 02:58:44 +000027
28using namespace llvm;
29
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000030namespace {
31class PTXMCAsmStreamer : public MCStreamer {
32 formatted_raw_ostream &OS;
33 const MCAsmInfo &MAI;
34 OwningPtr<MCInstPrinter> InstPrinter;
35 OwningPtr<MCCodeEmitter> Emitter;
36
37 SmallString<128> CommentToEmit;
38 raw_svector_ostream CommentStream;
39
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000040 unsigned IsVerboseAsm : 1;
41 unsigned ShowInst : 1;
42
43public:
44 PTXMCAsmStreamer(MCContext &Context,
45 formatted_raw_ostream &os,
Rafael Espindola89b93722010-12-10 07:39:47 +000046 bool isVerboseAsm, bool useLoc,
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000047 MCInstPrinter *printer,
48 MCCodeEmitter *emitter,
49 bool showInst)
50 : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
51 InstPrinter(printer), Emitter(emitter), CommentStream(CommentToEmit),
Rafael Espindola89b93722010-12-10 07:39:47 +000052 IsVerboseAsm(isVerboseAsm),
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000053 ShowInst(showInst) {
54 if (InstPrinter && IsVerboseAsm)
55 InstPrinter->setCommentStream(CommentStream);
56 }
57
58 ~PTXMCAsmStreamer() {}
59
Rafael Espindolaa484f2c2010-11-28 14:48:34 +000060 inline void EmitEOL() {
61 // If we don't have any comments, just emit a \n.
62 if (!IsVerboseAsm) {
63 OS << '\n';
64 return;
65 }
66 EmitCommentsAndEOL();
67 }
68 void EmitCommentsAndEOL();
69
70 /// isVerboseAsm - Return true if this streamer supports verbose assembly at
71 /// all.
72 virtual bool isVerboseAsm() const { return IsVerboseAsm; }
73
74 /// hasRawTextSupport - We support EmitRawText.
75 virtual bool hasRawTextSupport() const { return true; }
76
77 /// AddComment - Add a comment that can be emitted to the generated .s
78 /// file if applicable as a QoI issue to make the output of the compiler
79 /// more readable. This only affects the MCAsmStreamer, and only when
80 /// verbose assembly output is enabled.
81 virtual void AddComment(const Twine &T);
82
83 /// AddEncodingComment - Add a comment showing the encoding of an instruction.
84 virtual void AddEncodingComment(const MCInst &Inst);
85
86 /// GetCommentOS - Return a raw_ostream that comments can be written to.
87 /// Unlike AddComment, you are required to terminate comments with \n if you
88 /// use this method.
89 virtual raw_ostream &GetCommentOS() {
90 if (!IsVerboseAsm)
91 return nulls(); // Discard comments unless in verbose asm mode.
92 return CommentStream;
93 }
94
95 /// AddBlankLine - Emit a blank line to a .s file to pretty it up.
96 virtual void AddBlankLine() {
97 EmitEOL();
98 }
99
100 /// @name MCStreamer Interface
101 /// @{
102
103 virtual void SwitchSection(const MCSection *Section);
104
105 virtual void InitSections() {
106 }
107
108 virtual void EmitLabel(MCSymbol *Symbol);
109
110 virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
111
112 virtual void EmitThumbFunc(MCSymbol *Func);
113
114 virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
115
116 virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
117
Rafael Espindola32a006e2010-12-03 00:55:40 +0000118 virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
119 const MCSymbol *LastLabel,
120 const MCSymbol *Label);
121
Rafael Espindolaa484f2c2010-11-28 14:48:34 +0000122 virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
123
124 virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
125 virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
126 virtual void EmitCOFFSymbolStorageClass(int StorageClass);
127 virtual void EmitCOFFSymbolType(int Type);
128 virtual void EndCOFFSymbolDef();
129 virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
130 virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
131 unsigned ByteAlignment);
132
133 /// EmitLocalCommonSymbol - Emit a local common (.lcomm) symbol.
134 ///
135 /// @param Symbol - The common symbol to emit.
136 /// @param Size - The size of the common symbol.
137 virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size);
138
139 virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
140 unsigned Size = 0, unsigned ByteAlignment = 0);
141
142 virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
143 uint64_t Size, unsigned ByteAlignment = 0);
144
145 virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
146
Rafael Espindola89b93722010-12-10 07:39:47 +0000147 virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
148 bool isPCRel, unsigned AddrSpace);
Rafael Espindolaa484f2c2010-11-28 14:48:34 +0000149 virtual void EmitULEB128Value(const MCExpr *Value, unsigned AddrSpace = 0);
150 virtual void EmitSLEB128Value(const MCExpr *Value, unsigned AddrSpace = 0);
151 virtual void EmitGPRel32Value(const MCExpr *Value);
152
153
154 virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
155 unsigned AddrSpace);
156
157 virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
158 unsigned ValueSize = 1,
159 unsigned MaxBytesToEmit = 0);
160
161 virtual void EmitCodeAlignment(unsigned ByteAlignment,
162 unsigned MaxBytesToEmit = 0);
163
164 virtual void EmitValueToOffset(const MCExpr *Offset,
165 unsigned char Value = 0);
166
167 virtual void EmitFileDirective(StringRef Filename);
168 virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Filename);
169
170 virtual void EmitInstruction(const MCInst &Inst);
171
172 /// EmitRawText - If this file is backed by an assembly streamer, this dumps
173 /// the specified string in the output .s file. This capability is
174 /// indicated by the hasRawTextSupport() predicate.
175 virtual void EmitRawText(StringRef String);
176
177 virtual void Finish();
178
179 /// @}
180
181}; // class PTXMCAsmStreamer
182
183}
184
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000185/// TODO: Add appropriate implementation of Emit*() methods when needed
186
187void PTXMCAsmStreamer::AddComment(const Twine &T) {
188 if (!IsVerboseAsm) return;
189
190 // Make sure that CommentStream is flushed.
191 CommentStream.flush();
192
193 T.toVector(CommentToEmit);
194 // Each comment goes on its own line.
195 CommentToEmit.push_back('\n');
196
197 // Tell the comment stream that the vector changed underneath it.
198 CommentStream.resync();
199}
200
201void PTXMCAsmStreamer::EmitCommentsAndEOL() {
202 if (CommentToEmit.empty() && CommentStream.GetNumBytesInBuffer() == 0) {
203 OS << '\n';
204 return;
205 }
206
207 CommentStream.flush();
208 StringRef Comments = CommentToEmit.str();
209
210 assert(Comments.back() == '\n' &&
211 "Comment array not newline terminated");
212 do {
213 // Emit a line of comments.
214 OS.PadToColumn(MAI.getCommentColumn());
215 size_t Position = Comments.find('\n');
216 OS << MAI.getCommentString() << ' ' << Comments.substr(0, Position) << '\n';
217
218 Comments = Comments.substr(Position+1);
219 } while (!Comments.empty());
220
221 CommentToEmit.clear();
222 // Tell the comment stream that the vector changed underneath it.
223 CommentStream.resync();
224}
225
226static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) {
227 assert(Bytes && "Invalid size!");
228 return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
229}
230
231void PTXMCAsmStreamer::SwitchSection(const MCSection *Section) {
232 assert(Section && "Cannot switch to a null section!");
233 if (Section != CurSection) {
234 PrevSection = CurSection;
235 CurSection = Section;
236 }
237}
238
239void PTXMCAsmStreamer::EmitLabel(MCSymbol *Symbol) {
240 assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
241 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
242 assert(CurSection && "Cannot emit before setting section!");
243
244 OS << *Symbol << MAI.getLabelSuffix();
245 EmitEOL();
246 Symbol->setSection(*CurSection);
247}
248
249void PTXMCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {}
250
251void PTXMCAsmStreamer::EmitThumbFunc(MCSymbol *Func) {}
252
253void PTXMCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
254 OS << *Symbol << " = " << *Value;
255 EmitEOL();
256
257 // FIXME: Lift context changes into super class.
258 Symbol->setVariableValue(Value);
259}
260
261void PTXMCAsmStreamer::EmitWeakReference(MCSymbol *Alias,
262 const MCSymbol *Symbol) {
263 OS << ".weakref " << *Alias << ", " << *Symbol;
264 EmitEOL();
265}
266
Rafael Espindola32a006e2010-12-03 00:55:40 +0000267void PTXMCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
268 const MCSymbol *LastLabel,
269 const MCSymbol *Label) {
270 report_fatal_error("Unimplemented.");
271}
272
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000273void PTXMCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
274 MCSymbolAttr Attribute) {}
275
276void PTXMCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
277
278void PTXMCAsmStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {}
279
280void PTXMCAsmStreamer::EmitCOFFSymbolStorageClass (int StorageClass) {}
281
282void PTXMCAsmStreamer::EmitCOFFSymbolType (int Type) {}
283
284void PTXMCAsmStreamer::EndCOFFSymbolDef() {}
285
286void PTXMCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
287
288void PTXMCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
289 unsigned ByteAlignment) {}
290
291void PTXMCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {}
292
293void PTXMCAsmStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
294 unsigned Size, unsigned ByteAlignment) {}
295
296void PTXMCAsmStreamer::EmitTBSSSymbol(const MCSection *Section,
297 MCSymbol *Symbol,
298 uint64_t Size, unsigned ByteAlignment) {}
299
300static inline char toOctal(int X) { return (X&7)+'0'; }
301
302static void PrintQuotedString(StringRef Data, raw_ostream &OS) {
303 OS << '"';
304
305 for (unsigned i = 0, e = Data.size(); i != e; ++i) {
306 unsigned char C = Data[i];
307 if (C == '"' || C == '\\') {
308 OS << '\\' << (char)C;
309 continue;
310 }
311
312 if (isprint((unsigned char)C)) {
313 OS << (char)C;
314 continue;
315 }
316
317 switch (C) {
318 case '\b': OS << "\\b"; break;
319 case '\f': OS << "\\f"; break;
320 case '\n': OS << "\\n"; break;
321 case '\r': OS << "\\r"; break;
322 case '\t': OS << "\\t"; break;
323 default:
324 OS << '\\';
325 OS << toOctal(C >> 6);
326 OS << toOctal(C >> 3);
327 OS << toOctal(C >> 0);
328 break;
329 }
330 }
331
332 OS << '"';
333}
334
335void PTXMCAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
336 assert(CurSection && "Cannot emit contents before setting section!");
337 if (Data.empty()) return;
338
339 if (Data.size() == 1) {
340 OS << MAI.getData8bitsDirective(AddrSpace);
341 OS << (unsigned)(unsigned char)Data[0];
342 EmitEOL();
343 return;
344 }
345
346 // If the data ends with 0 and the target supports .asciz, use it, otherwise
347 // use .ascii
348 if (MAI.getAscizDirective() && Data.back() == 0) {
349 OS << MAI.getAscizDirective();
350 Data = Data.substr(0, Data.size()-1);
351 } else {
352 OS << MAI.getAsciiDirective();
353 }
354
355 OS << ' ';
356 PrintQuotedString(Data, OS);
357 EmitEOL();
358}
359
Rafael Espindola89b93722010-12-10 07:39:47 +0000360void PTXMCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
361 bool isPCRel, unsigned AddrSpace) {
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000362 assert(CurSection && "Cannot emit contents before setting section!");
Rafael Espindola89b93722010-12-10 07:39:47 +0000363 assert(!isPCRel && "Cannot emit pc relative relocations!");
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000364 const char *Directive = 0;
365 switch (Size) {
366 default: break;
367 case 1: Directive = MAI.getData8bitsDirective(AddrSpace); break;
368 case 2: Directive = MAI.getData16bitsDirective(AddrSpace); break;
369 case 4: Directive = MAI.getData32bitsDirective(AddrSpace); break;
370 case 8:
371 Directive = MAI.getData64bitsDirective(AddrSpace);
372 // If the target doesn't support 64-bit data, emit as two 32-bit halves.
373 if (Directive) break;
Rafael Espindolaec0b4282010-11-28 23:22:44 +0000374 int64_t IntValue;
375 if (!Value->EvaluateAsAbsolute(IntValue))
376 report_fatal_error("Don't know how to emit this value.");
Rafael Espindola89b93722010-12-10 07:39:47 +0000377 if (getContext().getTargetAsmInfo().isLittleEndian()) {
Rafael Espindolaec0b4282010-11-28 23:22:44 +0000378 EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
379 EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000380 } else {
Rafael Espindolaec0b4282010-11-28 23:22:44 +0000381 EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
382 EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000383 }
384 return;
385 }
386
387 assert(Directive && "Invalid size for machine code value!");
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000388 OS << Directive << *Value;
389 EmitEOL();
390}
391
392void PTXMCAsmStreamer::EmitULEB128Value(const MCExpr *Value,
393 unsigned AddrSpace) {
394 assert(MAI.hasLEB128() && "Cannot print a .uleb");
395 OS << ".uleb128 " << *Value;
396 EmitEOL();
397}
398
399void PTXMCAsmStreamer::EmitSLEB128Value(const MCExpr *Value,
400 unsigned AddrSpace) {
401 assert(MAI.hasLEB128() && "Cannot print a .sleb");
402 OS << ".sleb128 " << *Value;
403 EmitEOL();
404}
405
406void PTXMCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
407 assert(MAI.getGPRel32Directive() != 0);
408 OS << MAI.getGPRel32Directive() << *Value;
409 EmitEOL();
410}
411
412
413/// EmitFill - Emit NumBytes bytes worth of the value specified by
414/// FillValue. This implements directives such as '.space'.
415void PTXMCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
416 unsigned AddrSpace) {
417 if (NumBytes == 0) return;
418
419 if (AddrSpace == 0)
420 if (const char *ZeroDirective = MAI.getZeroDirective()) {
421 OS << ZeroDirective << NumBytes;
422 if (FillValue != 0)
423 OS << ',' << (int)FillValue;
424 EmitEOL();
425 return;
426 }
427
428 // Emit a byte at a time.
429 MCStreamer::EmitFill(NumBytes, FillValue, AddrSpace);
430}
431
432void PTXMCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
433 unsigned ValueSize,
434 unsigned MaxBytesToEmit) {
435 // Some assemblers don't support non-power of two alignments, so we always
436 // emit alignments as a power of two if possible.
437 if (isPowerOf2_32(ByteAlignment)) {
438 switch (ValueSize) {
439 default: llvm_unreachable("Invalid size for machine code value!");
440 case 1: OS << MAI.getAlignDirective(); break;
441 // FIXME: use MAI for this!
442 case 2: OS << ".p2alignw "; break;
443 case 4: OS << ".p2alignl "; break;
444 case 8: llvm_unreachable("Unsupported alignment size!");
445 }
446
447 if (MAI.getAlignmentIsInBytes())
448 OS << ByteAlignment;
449 else
450 OS << Log2_32(ByteAlignment);
451
452 if (Value || MaxBytesToEmit) {
453 OS << ", 0x";
454 OS.write_hex(truncateToSize(Value, ValueSize));
455
456 if (MaxBytesToEmit)
457 OS << ", " << MaxBytesToEmit;
458 }
459 EmitEOL();
460 return;
461 }
462
463 // Non-power of two alignment. This is not widely supported by assemblers.
464 // FIXME: Parameterize this based on MAI.
465 switch (ValueSize) {
466 default: llvm_unreachable("Invalid size for machine code value!");
467 case 1: OS << ".balign"; break;
468 case 2: OS << ".balignw"; break;
469 case 4: OS << ".balignl"; break;
470 case 8: llvm_unreachable("Unsupported alignment size!");
471 }
472
473 OS << ' ' << ByteAlignment;
474 OS << ", " << truncateToSize(Value, ValueSize);
475 if (MaxBytesToEmit)
476 OS << ", " << MaxBytesToEmit;
477 EmitEOL();
478}
479
480void PTXMCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
481 unsigned MaxBytesToEmit) {}
482
483void PTXMCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
484 unsigned char Value) {}
485
486
487void PTXMCAsmStreamer::EmitFileDirective(StringRef Filename) {
488 assert(MAI.hasSingleParameterDotFile());
489 OS << "\t.file\t";
490 PrintQuotedString(Filename, OS);
491 EmitEOL();
492}
493
Rafael Espindolaaf6b58082010-11-16 21:20:32 +0000494// FIXME: should we inherit from MCAsmStreamer?
495bool PTXMCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo,
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000496 StringRef Filename){
497 OS << "\t.file\t" << FileNo << ' ';
498 PrintQuotedString(Filename, OS);
499 EmitEOL();
Rafael Espindolaaf6b58082010-11-16 21:20:32 +0000500 return this->MCStreamer::EmitDwarfFileDirective(FileNo, Filename);
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000501}
502
503void PTXMCAsmStreamer::AddEncodingComment(const MCInst &Inst) {}
504
505void PTXMCAsmStreamer::EmitInstruction(const MCInst &Inst) {
506 assert(CurSection && "Cannot emit contents before setting section!");
507
508 // Show the encoding in a comment if we have a code emitter.
509 if (Emitter)
510 AddEncodingComment(Inst);
511
512 // Show the MCInst if enabled.
513 if (ShowInst) {
514 Inst.dump_pretty(GetCommentOS(), &MAI, InstPrinter.get(), "\n ");
515 GetCommentOS() << "\n";
516 }
517
518 // If we have an AsmPrinter, use that to print, otherwise print the MCInst.
519 if (InstPrinter)
520 InstPrinter->printInst(&Inst, OS);
521 else
522 Inst.print(OS, &MAI);
523 EmitEOL();
524}
525
526/// EmitRawText - If this file is backed by an assembly streamer, this dumps
527/// the specified string in the output .s file. This capability is
528/// indicated by the hasRawTextSupport() predicate.
529void PTXMCAsmStreamer::EmitRawText(StringRef String) {
530 if (!String.empty() && String.back() == '\n')
531 String = String.substr(0, String.size()-1);
532 OS << String;
533 EmitEOL();
534}
535
536void PTXMCAsmStreamer::Finish() {}
537
Rafael Espindolaa484f2c2010-11-28 14:48:34 +0000538namespace llvm {
539 MCStreamer *createPTXAsmStreamer(MCContext &Context,
540 formatted_raw_ostream &OS,
Rafael Espindola89b93722010-12-10 07:39:47 +0000541 bool isVerboseAsm, bool useLoc,
542 MCInstPrinter *IP,
Daniel Dunbar745dacc2010-12-16 03:05:59 +0000543 MCCodeEmitter *CE, TargetAsmBackend *TAB,
544 bool ShowInst) {
Rafael Espindola89b93722010-12-10 07:39:47 +0000545 return new PTXMCAsmStreamer(Context, OS, isVerboseAsm, useLoc,
Rafael Espindolaa484f2c2010-11-28 14:48:34 +0000546 IP, CE, ShowInst);
547 }
Che-Liang Chioud77f2a42010-11-08 02:58:44 +0000548}