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::printOperand(const MachineInstr *MI, unsigned OpNo,
 218                                       const char *Modifier) {
 219   printOp(MI->getOperand(OpNo), Modifier);
 220 }
 221
 222 void X86IntelAsmPrinter::printOp(const MachineOperand &MO,
 223                                  const char *Modifier) {
 224   switch (MO.getType()) {
 225   case MachineOperand::MO_Register: {
 226     unsigned Reg = MO.getReg();
 227     if (Modifier && strncmp(Modifier, "subreg", strlen("subreg")) == 0) {
 228       EVT VT = (strcmp(Modifier,"subreg64") == 0) ?
 229         MVT::i64 : ((strcmp(Modifier, "subreg32") == 0) ? MVT::i32 :
 230                     ((strcmp(Modifier,"subreg16") == 0) ? MVT::i16 :MVT::i8));
 231       Reg = getX86SubSuperRegister(Reg, VT);
 232     }
 233     PrintRegName(O, getRegisterName(Reg));
 234     return;
 235   }
 236   case MachineOperand::MO_Immediate:
 237     O << MO.getImm();
 238     return;
 239   case MachineOperand::MO_JumpTableIndex: {
 240     bool isMemOp  = Modifier && !strcmp(Modifier, "mem");
 241     if (!isMemOp) O << "OFFSET ";
 242     O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
 243       << "_" << MO.getIndex();
 244     return;
 245   }
 246   case MachineOperand::MO_ConstantPoolIndex: {
 247     bool isMemOp  = Modifier && !strcmp(Modifier, "mem");
 248     if (!isMemOp) O << "OFFSET ";
 249     O << "[" << MAI->getPrivateGlobalPrefix() << "CPI"
 250       << getFunctionNumber() << "_" << MO.getIndex();
 251     printOffset(MO.getOffset());
 252     O << "]";
 253     return;
 254   }
 255   case MachineOperand::MO_GlobalAddress: {
 256     bool isMemOp  = Modifier && !strcmp(Modifier, "mem");
 257     GlobalValue *GV = MO.getGlobal();
 258     std::string Name = Mang->getMangledName(GV);
 259     decorateName(Name, GV);
 260
 261     if (!isMemOp) O << "OFFSET ";
 262
 263     // Handle dllimport linkage.
 264     // FIXME: This should be fixed with full support of stdcall & fastcall
 265     // CC's
 266     if (MO.getTargetFlags() == X86II::MO_DLLIMPORT)
 267       O << "__imp_";
 268
 269     O << Name;
 270     printOffset(MO.getOffset());
 271     return;
 272   }
 273   case MachineOperand::MO_ExternalSymbol: {
 274     O << MAI->getGlobalPrefix() << MO.getSymbolName();
 275     return;
 276   }
 277   default:
 278     O << "<unknown operand type>"; return;
 279   }
 280 }
 281
 282 void X86IntelAsmPrinter::print_pcrel_imm(const MachineInstr *MI, unsigned OpNo){
 283   const MachineOperand &MO = MI->getOperand(OpNo);
 284   switch (MO.getType()) {
 285   default: llvm_unreachable("Unknown pcrel immediate operand");
 286   case MachineOperand::MO_Immediate:
 287     O << MO.getImm();
 288     return;
 289   case MachineOperand::MO_MachineBasicBlock:
 290     GetMBBSymbol(MO.getMBB()->getNumber())->print(O, MAI);
 291     return;
 292
 293   case MachineOperand::MO_GlobalAddress: {
 294     GlobalValue *GV = MO.getGlobal();
 295     std::string Name = Mang->getMangledName(GV);
 296     decorateName(Name, GV);
 297
 298     // Handle dllimport linkage.
 299     // FIXME: This should be fixed with full support of stdcall & fastcall
 300     // CC's
 301     if (MO.getTargetFlags() == X86II::MO_DLLIMPORT)
 302       O << "__imp_";
 303     O << Name;
 304     printOffset(MO.getOffset());
 305     return;
 306   }
 307
 308   case MachineOperand::MO_ExternalSymbol:
 309     O << MAI->getGlobalPrefix() << MO.getSymbolName();
 310     return;
 311   }
 312 }
 313
 314
 315 void X86IntelAsmPrinter::printLeaMemReference(const MachineInstr *MI,
 316                                               unsigned Op,
 317                                               const char *Modifier) {
 318   const MachineOperand &BaseReg  = MI->getOperand(Op);
 319   int ScaleVal                   = MI->getOperand(Op+1).getImm();
 320   const MachineOperand &IndexReg = MI->getOperand(Op+2);
 321   const MachineOperand &DispSpec = MI->getOperand(Op+3);
 322
 323   O << "[";
 324   bool NeedPlus = false;
 325   if (BaseReg.getReg()) {
 326     printOp(BaseReg, Modifier);
 327     NeedPlus = true;
 328   }
 329
 330   if (IndexReg.getReg()) {
 331     if (NeedPlus) O << " + ";
 332     if (ScaleVal != 1)
 333       O << ScaleVal << "*";
 334     printOp(IndexReg, Modifier);
 335     NeedPlus = true;
 336   }
 337
 338   if (DispSpec.isGlobal() || DispSpec.isCPI() ||
 339       DispSpec.isJTI()) {
 340     if (NeedPlus)
 341       O << " + ";
 342     printOp(DispSpec, "mem");
 343   } else {
 344     int DispVal = DispSpec.getImm();
 345     if (DispVal || (!BaseReg.getReg() && !IndexReg.getReg())) {
 346       if (NeedPlus) {
 347         if (DispVal > 0)
 348           O << " + ";
 349         else {
 350           O << " - ";
 351           DispVal = -DispVal;
 352         }
 353       }
 354       O << DispVal;
 355     }
 356   }
 357   O << "]";
 358 }
 359
 360 void X86IntelAsmPrinter::printMemReference(const MachineInstr *MI, unsigned Op,
 361                                            const char *Modifier) {
 362   assert(isMem(MI, Op) && "Invalid memory reference!");
 363   MachineOperand Segment = MI->getOperand(Op+4);
 364   if (Segment.getReg()) {
 365       printOperand(MI, Op+4, Modifier);
 366       O << ':';
 367     }
 368   printLeaMemReference(MI, Op, Modifier);
 369 }
 370
 371 void X86IntelAsmPrinter::printPICJumpTableSetLabel(unsigned uid,
 372                                            const MachineBasicBlock *MBB) const {
 373   if (!MAI->getSetDirective())
 374     return;
 375
 376   O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
 377     << getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ',';
 378   GetMBBSymbol(MBB->getNumber())->print(O, MAI);
 379   O << '-' << "\"L" << getFunctionNumber() << "$pb\"'\n";
 380 }
 381
 382 void X86IntelAsmPrinter::printPICLabel(const MachineInstr *MI, unsigned Op) {
 383   O << "L" << getFunctionNumber() << "$pb\n";
 384   O << "L" << getFunctionNumber() << "$pb:";
 385 }
 386
 387 bool X86IntelAsmPrinter::printAsmMRegister(const MachineOperand &MO,
 388                                            const char Mode) {
 389   unsigned Reg = MO.getReg();
 390   switch (Mode) {
 391   default: return true;  // Unknown mode.
 392   case 'b': // Print QImode register
 393     Reg = getX86SubSuperRegister(Reg, MVT::i8);
 394     break;
 395   case 'h': // Print QImode high register
 396     Reg = getX86SubSuperRegister(Reg, MVT::i8, true);
 397     break;
 398   case 'w': // Print HImode register
 399     Reg = getX86SubSuperRegister(Reg, MVT::i16);
 400     break;
 401   case 'k': // Print SImode register
 402     Reg = getX86SubSuperRegister(Reg, MVT::i32);
 403     break;
 404   }
 405
 406   PrintRegName(O, getRegisterName(Reg));
 407   return false;
 408 }
 409
 410 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 411 ///
 412 bool X86IntelAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 413                                          unsigned AsmVariant,
 414                                          const char *ExtraCode) {
 415   // Does this asm operand have a single letter operand modifier?
 416   if (ExtraCode && ExtraCode[0]) {
 417     if (ExtraCode[1] != 0) return true; // Unknown modifier.
 418
 419     switch (ExtraCode[0]) {
 420     default: return true;  // Unknown modifier.
 421     case 'b': // Print QImode register
 422     case 'h': // Print QImode high register
 423     case 'w': // Print HImode register
 424     case 'k': // Print SImode register
 425       return printAsmMRegister(MI->getOperand(OpNo), ExtraCode[0]);
 426     }
 427   }
 428
 429   printOperand(MI, OpNo);
 430   return false;
 431 }
 432
 433 bool X86IntelAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
 434                                                unsigned OpNo,
 435                                                unsigned AsmVariant,
 436                                                const char *ExtraCode) {
 437   if (ExtraCode && ExtraCode[0])
 438     return true; // Unknown modifier.
 439   printMemReference(MI, OpNo);
 440   return false;
 441 }
 442
 443 /// printMachineInstruction -- Print out a single X86 LLVM instruction
 444 /// MI in Intel syntax to the current output stream.
 445 ///
 446 void X86IntelAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
 447   ++EmittedInsts;
 448
 449   processDebugLoc(MI->getDebugLoc());
 450
 451   // Call the autogenerated instruction printer routines.
 452   printInstruction(MI);
 453
 454   if (VerboseAsm && !MI->getDebugLoc().isUnknown())
 455     EmitComments(*MI);
 456   O << '\n';
 457 }
 458
 459 bool X86IntelAsmPrinter::doInitialization(Module &M) {
 460   bool Result = AsmPrinter::doInitialization(M);
 461
 462   O << "\t.686\n\t.MMX\n\t.XMM\n\t.model flat\n\n";
 463
 464   // Emit declarations for external functions.
 465   for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
 466     if (I->isDeclaration()) {
 467       std::string Name = Mang->getMangledName(I);
 468       decorateName(Name, I);
 469
 470       O << "\tEXTERN " ;
 471       if (I->hasDLLImportLinkage()) {
 472         O << "__imp_";
 473       }
 474       O << Name << ":near\n";
 475     }
 476
 477   // Emit declarations for external globals.  Note that VC++ always declares
 478   // external globals to have type byte, and if that's good enough for VC++...
 479   for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
 480        I != E; ++I) {
 481     if (I->isDeclaration()) {
 482       std::string Name = Mang->getMangledName(I);
 483
 484       O << "\tEXTERN " ;
 485       if (I->hasDLLImportLinkage()) {
 486         O << "__imp_";
 487       }
 488       O << Name << ":byte\n";
 489     }
 490   }
 491
 492   return Result;
 493 }
 494
 495 void X86IntelAsmPrinter::PrintGlobalVariable(const GlobalVariable *GV) {
 496   // Check to see if this is a special global used by LLVM, if so, emit it.
 497   if (GV->isDeclaration() ||
 498       EmitSpecialLLVMGlobal(GV))
 499     return;
 500
 501   const TargetData *TD = TM.getTargetData();
 502
 503   std::string name = Mang->getMangledName(GV);
 504   Constant *C = GV->getInitializer();
 505   unsigned Align = TD->getPreferredAlignmentLog(GV);
 506   bool bCustomSegment = false;
 507
 508   switch (GV->getLinkage()) {
 509   case GlobalValue::CommonLinkage:
 510   case GlobalValue::LinkOnceAnyLinkage:
 511   case GlobalValue::LinkOnceODRLinkage:
 512   case GlobalValue::WeakAnyLinkage:
 513   case GlobalValue::WeakODRLinkage:
 514     // FIXME: make a MCSection.
 515     O << name << "?\tSEGEMNT PARA common 'COMMON'\n";
 516     bCustomSegment = true;
 517     // FIXME: the default alignment is 16 bytes, but 1, 2, 4, and 256
 518     // are also available.
 519     break;
 520   case GlobalValue::AppendingLinkage:
 521     // FIXME: make a MCSection.
 522     O << name << "?\tSEGMENT PARA public 'DATA'\n";
 523     bCustomSegment = true;
 524     // FIXME: the default alignment is 16 bytes, but 1, 2, 4, and 256
 525     // are also available.
 526     break;
 527   case GlobalValue::DLLExportLinkage:
 528     DLLExportedGVs.insert(name);
 529     // FALL THROUGH
 530   case GlobalValue::ExternalLinkage:
 531     O << "\tpublic " << name << "\n";
 532     // FALL THROUGH
 533   case GlobalValue::InternalLinkage:
 534     OutStreamer.SwitchSection(getObjFileLowering().getDataSection());
 535     break;
 536   default:
 537     llvm_unreachable("Unknown linkage type!");
 538   }
 539
 540   if (!bCustomSegment)
 541     EmitAlignment(Align, GV);
 542
 543   O << name << ":";
 544   if (VerboseAsm)
 545     O.PadToColumn(MAI->getCommentColumn());
 546     O << MAI->getCommentString()
 547     << " " << GV->getName();
 548   O << '\n';
 549
 550   EmitGlobalConstant(C);
 551
 552   if (bCustomSegment)
 553     O << name << "?\tends\n";
 554 }
 555
 556 bool X86IntelAsmPrinter::doFinalization(Module &M) {
 557   // Output linker support code for dllexported globals
 558   if (!DLLExportedGVs.empty() || !DLLExportedFns.empty()) {
 559     O << "; WARNING: The following code is valid only with MASM v8.x"
 560       << "and (possible) higher\n"
 561       << "; This version of MASM is usually shipped with Microsoft "
 562       << "Visual Studio 2005\n"
 563       << "; or (possible) further versions. Unfortunately, there is no "
 564       << "way to support\n"
 565       << "; dllexported symbols in the earlier versions of MASM in fully "
 566       << "automatic way\n\n";
 567     O << "_drectve\t segment info alias('.drectve')\n";
 568
 569     for (StringSet<>::iterator i = DLLExportedGVs.begin(),
 570            e = DLLExportedGVs.end();
 571            i != e; ++i)
 572       O << "\t db ' /EXPORT:" << i->getKeyData() << ",data'\n";
 573
 574     for (StringSet<>::iterator i = DLLExportedFns.begin(),
 575            e = DLLExportedFns.end();
 576            i != e; ++i)
 577       O << "\t db ' /EXPORT:" << i->getKeyData() << "'\n";
 578
 579     O << "_drectve\t ends\n";
 580   }
 581
 582   // Bypass X86SharedAsmPrinter::doFinalization().
 583   bool Result = AsmPrinter::doFinalization(M);
 584   O << "\tend\n";
 585   return Result;
 586 }
 587
 588 void X86IntelAsmPrinter::EmitString(const ConstantArray *CVA) const {
 589   unsigned NumElts = CVA->getNumOperands();
 590   if (NumElts == 0) return;
 591
 592   // ML does not have escape sequences except '' for '.  It also has a maximum
 593   // string length of 255.
 594   unsigned len = 0;
 595   bool inString = false;
 596   for (unsigned i = 0; i < NumElts; i++) {
 597     int n = cast<ConstantInt>(CVA->getOperand(i))->getZExtValue() & 255;
 598     if (len == 0)
 599       O << "\tdb ";
 600
 601     if (n >= 32 && n <= 127) {
 602       if (!inString) {
 603         if (len > 0) {
 604           O << ",'";
 605           len += 2;
 606         } else {
 607           O << "'";
 608           len++;
 609         }
 610         inString = true;
 611       }
 612       if (n == '\'') {
 613         O << "'";
 614         len++;
 615       }
 616       O << char(n);
 617     } else {
 618       if (inString) {
 619         O << "'";
 620         len++;
 621         inString = false;
 622       }
 623       if (len > 0) {
 624         O << ",";
 625         len++;
 626       }
 627       O << n;
 628       len += 1 + (n > 9) + (n > 99);
 629     }
 630
 631     if (len > 60) {
 632       if (inString) {
 633         O << "'";
 634         inString = false;
 635       }
 636       O << "\n";
 637       len = 0;
 638     }
 639   }
 640
 641   if (len > 0) {
 642     if (inString)
 643       O << "'";
 644     O << "\n";
 645   }
 646 }
 647
 648 // Include the auto-generated portion of the assembly writer.
 649 #include "X86GenAsmWriter1.inc"