lib/Target/X86/AsmPrinter/X86IntelAsmPrinter.cpp

   1 //===-- X86IntelAsmPrinter.cpp - Convert X86 LLVM code to Intel assembly --===//
   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 //
  10 // This file contains a printer that converts from our internal representation
  11 // of machine-dependent LLVM code to Intel format assembly language.
  12 // This printer is the output mechanism used by `llc'.
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #define DEBUG_TYPE "asm-printer"
  17 #include "X86IntelAsmPrinter.h"
  18 #include "X86InstrInfo.h"
  19 #include "X86MCAsmInfo.h"
  20 #include "X86.h"
  21 #include "llvm/CallingConv.h"
  22 #include "llvm/Constants.h"
  23 #include "llvm/DerivedTypes.h"
  24 #include "llvm/Module.h"
  25 #include "llvm/ADT/Statistic.h"
  26 #include "llvm/ADT/StringExtras.h"
  27 #include "llvm/Assembly/Writer.h"
  28 #include "llvm/CodeGen/DwarfWriter.h"
  29 #include "llvm/MC/MCAsmInfo.h"
  30 #include "llvm/MC/MCStreamer.h"
  31 #include "llvm/MC/MCSymbol.h"
  32 #include "llvm/Target/TargetLoweringObjectFile.h"
  33 #include "llvm/Target/TargetOptions.h"
  34 #include "llvm/Support/ErrorHandling.h"
  35 #include "llvm/Support/Mangler.h"
  36 using namespace llvm;
  37
  38 STATISTIC(EmittedInsts, "Number of machine instrs printed");
  39
  40 static X86MachineFunctionInfo calculateFunctionInfo(const Function *F,
  41                                                     const TargetData *TD) {
  42   X86MachineFunctionInfo Info;
  43   uint64_t Size = 0;
  44
  45   switch (F->getCallingConv()) {
  46   case CallingConv::X86_StdCall:
  47     Info.setDecorationStyle(StdCall);
  48     break;
  49   case CallingConv::X86_FastCall:
  50     Info.setDecorationStyle(FastCall);
  51     break;
  52   default:
  53     return Info;
  54   }
  55
  56   unsigned argNum = 1;
  57   for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
  58        AI != AE; ++AI, ++argNum) {
  59     const Type* Ty = AI->getType();
  60
  61     // 'Dereference' type in case of byval parameter attribute
  62     if (F->paramHasAttr(argNum, Attribute::ByVal))
  63       Ty = cast<PointerType>(Ty)->getElementType();
  64
  65     // Size should be aligned to DWORD boundary
  66     Size += ((TD->getTypeAllocSize(Ty) + 3)/4)*4;
  67   }
  68
  69   // We're not supporting tooooo huge arguments :)
  70   Info.setBytesToPopOnReturn((unsigned int)Size);
  71   return Info;
  72 }
  73
  74
  75 /// decorateName - Query FunctionInfoMap and use this information for various
  76 /// name decoration.
  77 void X86IntelAsmPrinter::decorateName(std::string &Name,
  78                                       const GlobalValue *GV) {
  79   const Function *F = dyn_cast<Function>(GV);
  80   if (!F) return;
  81
  82   // We don't want to decorate non-stdcall or non-fastcall functions right now
  83   CallingConv::ID CC = F->getCallingConv();
  84   if (CC != CallingConv::X86_StdCall && CC != CallingConv::X86_FastCall)
  85     return;
  86
  87   FMFInfoMap::const_iterator info_item = FunctionInfoMap.find(F);
  88
  89   const X86MachineFunctionInfo *Info;
  90   if (info_item == FunctionInfoMap.end()) {
  91     // Calculate apropriate function info and populate map
  92     FunctionInfoMap[F] = calculateFunctionInfo(F, TM.getTargetData());
  93     Info = &FunctionInfoMap[F];
  94   } else {
  95     Info = &info_item->second;
  96   }
  97
  98   const FunctionType *FT = F->getFunctionType();
  99   switch (Info->getDecorationStyle()) {
 100   case None:
 101     break;
 102   case StdCall:
 103     // "Pure" variadic functions do not receive @0 suffix.
 104     if (!FT->isVarArg() || (FT->getNumParams() == 0) ||
 105         (FT->getNumParams() == 1 && F->hasStructRetAttr()))
 106       Name += '@' + utostr_32(Info->getBytesToPopOnReturn());
 107     break;
 108   case FastCall:
 109     // "Pure" variadic functions do not receive @0 suffix.
 110     if (!FT->isVarArg() || (FT->getNumParams() == 0) ||
 111         (FT->getNumParams() == 1 && F->hasStructRetAttr()))
 112       Name += '@' + utostr_32(Info->getBytesToPopOnReturn());
 113
 114     if (Name[0] == '_')
 115       Name[0] = '@';
 116     else
 117       Name = '@' + Name;
 118
 119     break;
 120   default:
 121     llvm_unreachable("Unsupported DecorationStyle");
 122   }
 123 }
 124
 125 /// runOnMachineFunction - This uses the printMachineInstruction()
 126 /// method to print assembly for each instruction.
 127 ///
 128 bool X86IntelAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
 129   this->MF = &MF;
 130   SetupMachineFunction(MF);
 131   O << "\n\n";
 132
 133   // Print out constants referenced by the function
 134   EmitConstantPool(MF.getConstantPool());
 135
 136   // Print out labels for the function.
 137   const Function *F = MF.getFunction();
 138   CallingConv::ID CC = F->getCallingConv();
 139   unsigned FnAlign = MF.getAlignment();
 140
 141   // Populate function information map.  Actually, We don't want to populate
 142   // non-stdcall or non-fastcall functions' information right now.
 143   if (CC == CallingConv::X86_StdCall || CC == CallingConv::X86_FastCall)
 144     FunctionInfoMap[F] = *MF.getInfo<X86MachineFunctionInfo>();
 145
 146   decorateName(CurrentFnName, F);
 147
 148   OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
 149
 150   switch (F->getLinkage()) {
 151   default: llvm_unreachable("Unsupported linkage type!");
 152   case Function::LinkOnceAnyLinkage:
 153   case Function::LinkOnceODRLinkage:
 154   case Function::WeakAnyLinkage:
 155   case Function::WeakODRLinkage:
 156
 157   case Function::PrivateLinkage:
 158   case Function::LinkerPrivateLinkage:
 159   case Function::InternalLinkage:
 160     EmitAlignment(FnAlign);
 161     break;
 162   case Function::DLLExportLinkage:
 163     DLLExportedFns.insert(CurrentFnName);
 164     //FALLS THROUGH
 165   case Function::ExternalLinkage:
 166     O << "\tpublic " << CurrentFnName << "\n";
 167     EmitAlignment(FnAlign);
 168     break;
 169   }
 170
 171   O << CurrentFnName << "\tproc near\n";
 172
 173   // Print out code for the function.
 174   for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
 175        I != E; ++I) {
 176     // Print a label for the basic block if there are any predecessors.
 177     if (!I->pred_empty()) {
 178       EmitBasicBlockStart(I);
 179       O << '\n';
 180     }
 181     for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
 182          II != E; ++II) {
 183       // Print the assembly for the instruction.
 184       printMachineInstruction(II);
 185     }
 186   }
 187
 188   // Print out jump tables referenced by the function.
 189   EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
 190
 191   O << CurrentFnName << "\tendp\n";
 192
 193   // We didn't modify anything.
 194   return false;
 195 }
 196
 197 void X86IntelAsmPrinter::printSSECC(const MachineInstr *MI, unsigned Op) {
 198   unsigned char value = MI->getOperand(Op).getImm();
 199   assert(value <= 7 && "Invalid ssecc argument!");
 200   switch (value) {
 201   case 0: O << "eq"; break;
 202   case 1: O << "lt"; break;
 203   case 2: O << "le"; break;
 204   case 3: O << "unord"; break;
 205   case 4: O << "neq"; break;
 206   case 5: O << "nlt"; break;
 207   case 6: O << "nle"; break;
 208   case 7: O << "ord"; break;
 209   }
 210 }
 211
 212 static void PrintRegName(raw_ostream &O, StringRef RegName) {
 213   for (unsigned i = 0, e = RegName.size(); i != e; ++i)
 214     O << (char)toupper(RegName[i]);
 215 }
 216
 217 void X86IntelAsmPrinter::printOp(const MachineOperand &MO,
 218                                  const char *Modifier) {
 219   switch (MO.getType()) {
 220   case MachineOperand::MO_Register: {
 221     assert(TargetRegisterInfo::isPhysicalRegister(MO.getReg()));
 222     unsigned Reg = MO.getReg();
 223     if (Modifier && strncmp(Modifier, "subreg", strlen("subreg")) == 0) {
 224       EVT VT = (strcmp(Modifier,"subreg64") == 0) ?
 225         MVT::i64 : ((strcmp(Modifier, "subreg32") == 0) ? MVT::i32 :
 226                     ((strcmp(Modifier,"subreg16") == 0) ? MVT::i16 :MVT::i8));
 227       Reg = getX86SubSuperRegister(Reg, VT);
 228     }
 229     PrintRegName(O, TRI->getAsmName(Reg));
 230     return;
 231   }
 232   case MachineOperand::MO_Immediate:
 233     O << MO.getImm();
 234     return;
 235   case MachineOperand::MO_JumpTableIndex: {
 236     bool isMemOp  = Modifier && !strcmp(Modifier, "mem");
 237     if (!isMemOp) O << "OFFSET ";
 238     O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
 239       << "_" << MO.getIndex();
 240     return;
 241   }
 242   case MachineOperand::MO_ConstantPoolIndex: {
 243     bool isMemOp  = Modifier && !strcmp(Modifier, "mem");
 244     if (!isMemOp) O << "OFFSET ";
 245     O << "[" << MAI->getPrivateGlobalPrefix() << "CPI"
 246       << getFunctionNumber() << "_" << MO.getIndex();
 247     printOffset(MO.getOffset());
 248     O << "]";
 249     return;
 250   }
 251   case MachineOperand::MO_GlobalAddress: {
 252     bool isMemOp  = Modifier && !strcmp(Modifier, "mem");
 253     GlobalValue *GV = MO.getGlobal();
 254     std::string Name = Mang->getMangledName(GV);
 255     decorateName(Name, GV);
 256
 257     if (!isMemOp) O << "OFFSET ";
 258
 259     // Handle dllimport linkage.
 260     // FIXME: This should be fixed with full support of stdcall & fastcall
 261     // CC's
 262     if (MO.getTargetFlags() == X86II::MO_DLLIMPORT)
 263       O << "__imp_";
 264
 265     O << Name;
 266     printOffset(MO.getOffset());
 267     return;
 268   }
 269   case MachineOperand::MO_ExternalSymbol: {
 270     O << MAI->getGlobalPrefix() << MO.getSymbolName();
 271     return;
 272   }
 273   default:
 274     O << "<unknown operand type>"; return;
 275   }
 276 }
 277
 278 void X86IntelAsmPrinter::print_pcrel_imm(const MachineInstr *MI, unsigned OpNo){
 279   const MachineOperand &MO = MI->getOperand(OpNo);
 280   switch (MO.getType()) {
 281   default: llvm_unreachable("Unknown pcrel immediate operand");
 282   case MachineOperand::MO_Immediate:
 283     O << MO.getImm();
 284     return;
 285   case MachineOperand::MO_MachineBasicBlock:
 286     GetMBBSymbol(MO.getMBB()->getNumber())->print(O, MAI);
 287     return;
 288
 289   case MachineOperand::MO_GlobalAddress: {
 290     GlobalValue *GV = MO.getGlobal();
 291     std::string Name = Mang->getMangledName(GV);
 292     decorateName(Name, GV);
 293
 294     // Handle dllimport linkage.
 295     // FIXME: This should be fixed with full support of stdcall & fastcall
 296     // CC's
 297     if (MO.getTargetFlags() == X86II::MO_DLLIMPORT)
 298       O << "__imp_";
 299     O << Name;
 300     printOffset(MO.getOffset());
 301     return;
 302   }
 303
 304   case MachineOperand::MO_ExternalSymbol:
 305     O << MAI->getGlobalPrefix() << MO.getSymbolName();
 306     return;
 307   }
 308 }
 309
 310
 311 void X86IntelAsmPrinter::printLeaMemReference(const MachineInstr *MI,
 312                                               unsigned Op,
 313                                               const char *Modifier) {
 314   const MachineOperand &BaseReg  = MI->getOperand(Op);
 315   int ScaleVal                   = MI->getOperand(Op+1).getImm();
 316   const MachineOperand &IndexReg = MI->getOperand(Op+2);
 317   const MachineOperand &DispSpec = MI->getOperand(Op+3);
 318
 319   O << "[";
 320   bool NeedPlus = false;
 321   if (BaseReg.getReg()) {
 322     printOp(BaseReg, Modifier);
 323     NeedPlus = true;
 324   }
 325
 326   if (IndexReg.getReg()) {
 327     if (NeedPlus) O << " + ";
 328     if (ScaleVal != 1)
 329       O << ScaleVal << "*";
 330     printOp(IndexReg, Modifier);
 331     NeedPlus = true;
 332   }
 333
 334   if (DispSpec.isGlobal() || DispSpec.isCPI() ||
 335       DispSpec.isJTI()) {
 336     if (NeedPlus)
 337       O << " + ";
 338     printOp(DispSpec, "mem");
 339   } else {
 340     int DispVal = DispSpec.getImm();
 341     if (DispVal || (!BaseReg.getReg() && !IndexReg.getReg())) {
 342       if (NeedPlus) {
 343         if (DispVal > 0)
 344           O << " + ";
 345         else {
 346           O << " - ";
 347           DispVal = -DispVal;
 348         }
 349       }
 350       O << DispVal;
 351     }
 352   }
 353   O << "]";
 354 }
 355
 356 void X86IntelAsmPrinter::printMemReference(const MachineInstr *MI, unsigned Op,
 357                                            const char *Modifier) {
 358   assert(isMem(MI, Op) && "Invalid memory reference!");
 359   MachineOperand Segment = MI->getOperand(Op+4);
 360   if (Segment.getReg()) {
 361       printOperand(MI, Op+4, Modifier);
 362       O << ':';
 363     }
 364   printLeaMemReference(MI, Op, Modifier);
 365 }
 366
 367 void X86IntelAsmPrinter::printPICJumpTableSetLabel(unsigned uid,
 368                                            const MachineBasicBlock *MBB) const {
 369   if (!MAI->getSetDirective())
 370     return;
 371
 372   O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
 373     << getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ',';
 374   GetMBBSymbol(MBB->getNumber())->print(O, MAI);
 375   O << '-' << "\"L" << getFunctionNumber() << "$pb\"'\n";
 376 }
 377
 378 void X86IntelAsmPrinter::printPICLabel(const MachineInstr *MI, unsigned Op) {
 379   O << "L" << getFunctionNumber() << "$pb\n";
 380   O << "L" << getFunctionNumber() << "$pb:";
 381 }
 382
 383 bool X86IntelAsmPrinter::printAsmMRegister(const MachineOperand &MO,
 384                                            const char Mode) {
 385   unsigned Reg = MO.getReg();
 386   switch (Mode) {
 387   default: return true;  // Unknown mode.
 388   case 'b': // Print QImode register
 389     Reg = getX86SubSuperRegister(Reg, MVT::i8);
 390     break;
 391   case 'h': // Print QImode high register
 392     Reg = getX86SubSuperRegister(Reg, MVT::i8, true);
 393     break;
 394   case 'w': // Print HImode register
 395     Reg = getX86SubSuperRegister(Reg, MVT::i16);
 396     break;
 397   case 'k': // Print SImode register
 398     Reg = getX86SubSuperRegister(Reg, MVT::i32);
 399     break;
 400   }
 401
 402   PrintRegName(O, TRI->getAsmName(Reg));
 403   return false;
 404 }
 405
 406 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 407 ///
 408 bool X86IntelAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 409                                          unsigned AsmVariant,
 410                                          const char *ExtraCode) {
 411   // Does this asm operand have a single letter operand modifier?
 412   if (ExtraCode && ExtraCode[0]) {
 413     if (ExtraCode[1] != 0) return true; // Unknown modifier.
 414
 415     switch (ExtraCode[0]) {
 416     default: return true;  // Unknown modifier.
 417     case 'b': // Print QImode register
 418     case 'h': // Print QImode high register
 419     case 'w': // Print HImode register
 420     case 'k': // Print SImode register
 421       return printAsmMRegister(MI->getOperand(OpNo), ExtraCode[0]);
 422     }
 423   }
 424
 425   printOperand(MI, OpNo);
 426   return false;
 427 }
 428
 429 bool X86IntelAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
 430                                                unsigned OpNo,
 431                                                unsigned AsmVariant,
 432                                                const char *ExtraCode) {
 433   if (ExtraCode && ExtraCode[0])
 434     return true; // Unknown modifier.
 435   printMemReference(MI, OpNo);
 436   return false;
 437 }
 438
 439 /// printMachineInstruction -- Print out a single X86 LLVM instruction
 440 /// MI in Intel syntax to the current output stream.
 441 ///
 442 void X86IntelAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
 443   ++EmittedInsts;
 444
 445   processDebugLoc(MI->getDebugLoc());
 446
 447   // Call the autogenerated instruction printer routines.
 448   printInstruction(MI);
 449
 450   if (VerboseAsm && !MI->getDebugLoc().isUnknown())
 451     EmitComments(*MI);
 452   O << '\n';
 453 }
 454
 455 bool X86IntelAsmPrinter::doInitialization(Module &M) {
 456   bool Result = AsmPrinter::doInitialization(M);
 457
 458   O << "\t.686\n\t.MMX\n\t.XMM\n\t.model flat\n\n";
 459
 460   // Emit declarations for external functions.
 461   for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
 462     if (I->isDeclaration()) {
 463       std::string Name = Mang->getMangledName(I);
 464       decorateName(Name, I);
 465
 466       O << "\tEXTERN " ;
 467       if (I->hasDLLImportLinkage()) {
 468         O << "__imp_";
 469       }
 470       O << Name << ":near\n";
 471     }
 472
 473   // Emit declarations for external globals.  Note that VC++ always declares
 474   // external globals to have type byte, and if that's good enough for VC++...
 475   for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
 476        I != E; ++I) {
 477     if (I->isDeclaration()) {
 478       std::string Name = Mang->getMangledName(I);
 479
 480       O << "\tEXTERN " ;
 481       if (I->hasDLLImportLinkage()) {
 482         O << "__imp_";
 483       }
 484       O << Name << ":byte\n";
 485     }
 486   }
 487
 488   return Result;
 489 }
 490
 491 void X86IntelAsmPrinter::PrintGlobalVariable(const GlobalVariable *GV) {
 492   // Check to see if this is a special global used by LLVM, if so, emit it.
 493   if (GV->isDeclaration() ||
 494       EmitSpecialLLVMGlobal(GV))
 495     return;
 496
 497   const TargetData *TD = TM.getTargetData();
 498
 499   std::string name = Mang->getMangledName(GV);
 500   Constant *C = GV->getInitializer();
 501   unsigned Align = TD->getPreferredAlignmentLog(GV);
 502   bool bCustomSegment = false;
 503
 504   switch (GV->getLinkage()) {
 505   case GlobalValue::CommonLinkage:
 506   case GlobalValue::LinkOnceAnyLinkage:
 507   case GlobalValue::LinkOnceODRLinkage:
 508   case GlobalValue::WeakAnyLinkage:
 509   case GlobalValue::WeakODRLinkage:
 510     // FIXME: make a MCSection.
 511     O << name << "?\tSEGEMNT PARA common 'COMMON'\n";
 512     bCustomSegment = true;
 513     // FIXME: the default alignment is 16 bytes, but 1, 2, 4, and 256
 514     // are also available.
 515     break;
 516   case GlobalValue::AppendingLinkage:
 517     // FIXME: make a MCSection.
 518     O << name << "?\tSEGMENT PARA public 'DATA'\n";
 519     bCustomSegment = true;
 520     // FIXME: the default alignment is 16 bytes, but 1, 2, 4, and 256
 521     // are also available.
 522     break;
 523   case GlobalValue::DLLExportLinkage:
 524     DLLExportedGVs.insert(name);
 525     // FALL THROUGH
 526   case GlobalValue::ExternalLinkage:
 527     O << "\tpublic " << name << "\n";
 528     // FALL THROUGH
 529   case GlobalValue::InternalLinkage:
 530     OutStreamer.SwitchSection(getObjFileLowering().getDataSection());
 531     break;
 532   default:
 533     llvm_unreachable("Unknown linkage type!");
 534   }
 535
 536   if (!bCustomSegment)
 537     EmitAlignment(Align, GV);
 538
 539   O << name << ":";
 540   if (VerboseAsm)
 541     O.PadToColumn(MAI->getCommentColumn());
 542     O << MAI->getCommentString()
 543     << " " << GV->getName();
 544   O << '\n';
 545
 546   EmitGlobalConstant(C);
 547
 548   if (bCustomSegment)
 549     O << name << "?\tends\n";
 550 }
 551
 552 bool X86IntelAsmPrinter::doFinalization(Module &M) {
 553   // Output linker support code for dllexported globals
 554   if (!DLLExportedGVs.empty() || !DLLExportedFns.empty()) {
 555     O << "; WARNING: The following code is valid only with MASM v8.x"
 556       << "and (possible) higher\n"
 557       << "; This version of MASM is usually shipped with Microsoft "
 558       << "Visual Studio 2005\n"
 559       << "; or (possible) further versions. Unfortunately, there is no "
 560       << "way to support\n"
 561       << "; dllexported symbols in the earlier versions of MASM in fully "
 562       << "automatic way\n\n";
 563     O << "_drectve\t segment info alias('.drectve')\n";
 564
 565     for (StringSet<>::iterator i = DLLExportedGVs.begin(),
 566            e = DLLExportedGVs.end();
 567            i != e; ++i)
 568       O << "\t db ' /EXPORT:" << i->getKeyData() << ",data'\n";
 569
 570     for (StringSet<>::iterator i = DLLExportedFns.begin(),
 571            e = DLLExportedFns.end();
 572            i != e; ++i)
 573       O << "\t db ' /EXPORT:" << i->getKeyData() << "'\n";
 574
 575     O << "_drectve\t ends\n";
 576   }
 577
 578   // Bypass X86SharedAsmPrinter::doFinalization().
 579   bool Result = AsmPrinter::doFinalization(M);
 580   O << "\tend\n";
 581   return Result;
 582 }
 583
 584 void X86IntelAsmPrinter::EmitString(const ConstantArray *CVA) const {
 585   unsigned NumElts = CVA->getNumOperands();
 586   if (NumElts == 0) return;
 587
 588   // ML does not have escape sequences except '' for '.  It also has a maximum
 589   // string length of 255.
 590   unsigned len = 0;
 591   bool inString = false;
 592   for (unsigned i = 0; i < NumElts; i++) {
 593     int n = cast<ConstantInt>(CVA->getOperand(i))->getZExtValue() & 255;
 594     if (len == 0)
 595       O << "\tdb ";
 596
 597     if (n >= 32 && n <= 127) {
 598       if (!inString) {
 599         if (len > 0) {
 600           O << ",'";
 601           len += 2;
 602         } else {
 603           O << "'";
 604           len++;
 605         }
 606         inString = true;
 607       }
 608       if (n == '\'') {
 609         O << "'";
 610         len++;
 611       }
 612       O << char(n);
 613     } else {
 614       if (inString) {
 615         O << "'";
 616         len++;
 617         inString = false;
 618       }
 619       if (len > 0) {
 620         O << ",";
 621         len++;
 622       }
 623       O << n;
 624       len += 1 + (n > 9) + (n > 99);
 625     }
 626
 627     if (len > 60) {
 628       if (inString) {
 629         O << "'";
 630         inString = false;
 631       }
 632       O << "\n";
 633       len = 0;
 634     }
 635   }
 636
 637   if (len > 0) {
 638     if (inString)
 639       O << "'";
 640     O << "\n";
 641   }
 642 }
 643
 644 // Include the auto-generated portion of the assembly writer.
 645 #include "X86GenAsmWriter1.inc"