AsmWriter.cpp revision b579400cd72f274607f4964a9649ea4d38e04c46
1//===-- AsmWriter.cpp - Printing LLVM as an assembly file -----------------===// 2// 3// This library implements the functionality defined in llvm/Assembly/Writer.h 4// 5// TODO: print out the type name instead of the full type if a particular type 6// is in the symbol table... 7// 8//===----------------------------------------------------------------------===// 9 10#include "llvm/Assembly/CachedWriter.h" 11#include "llvm/SlotCalculator.h" 12#include "llvm/Module.h" 13#include "llvm/Function.h" 14#include "llvm/GlobalVariable.h" 15#include "llvm/BasicBlock.h" 16#include "llvm/ConstantVals.h" 17#include "llvm/iMemory.h" 18#include "llvm/iTerminators.h" 19#include "llvm/iPHINode.h" 20#include "llvm/iOther.h" 21#include "llvm/SymbolTable.h" 22#include "Support/StringExtras.h" 23#include "Support/STLExtras.h" 24#include <algorithm> 25#include <map> 26using std::string; 27using std::map; 28using std::vector; 29using std::ostream; 30 31void Value::dump() const { 32 std::cerr << this; 33} 34 35static const Module *getModuleFromVal(const Value *V) { 36 if (const FunctionArgument *MA = dyn_cast<const FunctionArgument>(V)) 37 return MA->getParent() ? MA->getParent()->getParent() : 0; 38 else if (const BasicBlock *BB = dyn_cast<const BasicBlock>(V)) 39 return BB->getParent() ? BB->getParent()->getParent() : 0; 40 else if (const Instruction *I = dyn_cast<const Instruction>(V)) { 41 const Function *M = I->getParent() ? I->getParent()->getParent() : 0; 42 return M ? M->getParent() : 0; 43 } else if (const GlobalValue *GV = dyn_cast<const GlobalValue>(V)) 44 return GV->getParent(); 45 else if (const Module *Mod = dyn_cast<const Module>(V)) 46 return Mod; 47 return 0; 48} 49 50static SlotCalculator *createSlotCalculator(const Value *V) { 51 assert(!isa<Type>(V) && "Can't create an SC for a type!"); 52 if (const FunctionArgument *FA = dyn_cast<const FunctionArgument>(V)) { 53 return new SlotCalculator(FA->getParent(), true); 54 } else if (const Instruction *I = dyn_cast<const Instruction>(V)) { 55 return new SlotCalculator(I->getParent()->getParent(), true); 56 } else if (const BasicBlock *BB = dyn_cast<const BasicBlock>(V)) { 57 return new SlotCalculator(BB->getParent(), true); 58 } else if (const GlobalVariable *GV = dyn_cast<const GlobalVariable>(V)){ 59 return new SlotCalculator(GV->getParent(), true); 60 } else if (const Function *Func = dyn_cast<const Function>(V)) { 61 return new SlotCalculator(Func, true); 62 } else if (const Module *Mod = dyn_cast<const Module>(V)) { 63 return new SlotCalculator(Mod, true); 64 } 65 return 0; 66} 67 68// WriteAsOperand - Write the name of the specified value out to the specified 69// ostream. This can be useful when you just want to print int %reg126, not the 70// whole instruction that generated it. 71// 72static void WriteAsOperandInternal(ostream &Out, const Value *V, bool PrintName, 73 SlotCalculator *Table) { 74 if (PrintName && V->hasName()) { 75 Out << " %" << V->getName(); 76 } else { 77 if (const Constant *CPV = dyn_cast<const Constant>(V)) { 78 Out << " " << CPV->getStrValue(); 79 } else { 80 int Slot; 81 if (Table) { 82 Slot = Table->getValSlot(V); 83 } else { 84 if (const Type *Ty = dyn_cast<const Type>(V)) { 85 Out << " " << Ty->getDescription(); 86 return; 87 } 88 89 Table = createSlotCalculator(V); 90 if (Table == 0) { Out << "BAD VALUE TYPE!"; return; } 91 92 Slot = Table->getValSlot(V); 93 delete Table; 94 } 95 if (Slot >= 0) Out << " %" << Slot; 96 else if (PrintName) 97 Out << "<badref>"; // Not embeded into a location? 98 } 99 } 100} 101 102 103// If the module has a symbol table, take all global types and stuff their 104// names into the TypeNames map. 105// 106static void fillTypeNameTable(const Module *M, 107 map<const Type *, string> &TypeNames) { 108 if (M && M->hasSymbolTable()) { 109 const SymbolTable *ST = M->getSymbolTable(); 110 SymbolTable::const_iterator PI = ST->find(Type::TypeTy); 111 if (PI != ST->end()) { 112 SymbolTable::type_const_iterator I = PI->second.begin(); 113 for (; I != PI->second.end(); ++I) { 114 // As a heuristic, don't insert pointer to primitive types, because 115 // they are used too often to have a single useful name. 116 // 117 const Type *Ty = cast<const Type>(I->second); 118 if (!isa<PointerType>(Ty) || 119 !cast<PointerType>(Ty)->getElementType()->isPrimitiveType()) 120 TypeNames.insert(std::make_pair(Ty, "%"+I->first)); 121 } 122 } 123 } 124} 125 126 127 128static string calcTypeName(const Type *Ty, vector<const Type *> &TypeStack, 129 map<const Type *, string> &TypeNames) { 130 if (Ty->isPrimitiveType()) return Ty->getDescription(); // Base case 131 132 // Check to see if the type is named. 133 map<const Type *, string>::iterator I = TypeNames.find(Ty); 134 if (I != TypeNames.end()) return I->second; 135 136 // Check to see if the Type is already on the stack... 137 unsigned Slot = 0, CurSize = TypeStack.size(); 138 while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type 139 140 // This is another base case for the recursion. In this case, we know 141 // that we have looped back to a type that we have previously visited. 142 // Generate the appropriate upreference to handle this. 143 // 144 if (Slot < CurSize) 145 return "\\" + utostr(CurSize-Slot); // Here's the upreference 146 147 TypeStack.push_back(Ty); // Recursive case: Add us to the stack.. 148 149 string Result; 150 switch (Ty->getPrimitiveID()) { 151 case Type::FunctionTyID: { 152 const FunctionType *MTy = cast<const FunctionType>(Ty); 153 Result = calcTypeName(MTy->getReturnType(), TypeStack, TypeNames) + " ("; 154 for (FunctionType::ParamTypes::const_iterator 155 I = MTy->getParamTypes().begin(), 156 E = MTy->getParamTypes().end(); I != E; ++I) { 157 if (I != MTy->getParamTypes().begin()) 158 Result += ", "; 159 Result += calcTypeName(*I, TypeStack, TypeNames); 160 } 161 if (MTy->isVarArg()) { 162 if (!MTy->getParamTypes().empty()) Result += ", "; 163 Result += "..."; 164 } 165 Result += ")"; 166 break; 167 } 168 case Type::StructTyID: { 169 const StructType *STy = cast<const StructType>(Ty); 170 Result = "{ "; 171 for (StructType::ElementTypes::const_iterator 172 I = STy->getElementTypes().begin(), 173 E = STy->getElementTypes().end(); I != E; ++I) { 174 if (I != STy->getElementTypes().begin()) 175 Result += ", "; 176 Result += calcTypeName(*I, TypeStack, TypeNames); 177 } 178 Result += " }"; 179 break; 180 } 181 case Type::PointerTyID: 182 Result = calcTypeName(cast<const PointerType>(Ty)->getElementType(), 183 TypeStack, TypeNames) + " *"; 184 break; 185 case Type::ArrayTyID: { 186 const ArrayType *ATy = cast<const ArrayType>(Ty); 187 int NumElements = ATy->getNumElements(); 188 Result = "["; 189 if (NumElements != -1) Result += itostr(NumElements) + " x "; 190 Result += calcTypeName(ATy->getElementType(), TypeStack, TypeNames) + "]"; 191 break; 192 } 193 default: 194 assert(0 && "Unhandled case in getTypeProps!"); 195 Result = "<error>"; 196 } 197 198 TypeStack.pop_back(); // Remove self from stack... 199 return Result; 200} 201 202 203// printTypeInt - The internal guts of printing out a type that has a 204// potentially named portion. 205// 206static ostream &printTypeInt(ostream &Out, const Type *Ty, 207 map<const Type *, string> &TypeNames) { 208 // Primitive types always print out their description, regardless of whether 209 // they have been named or not. 210 // 211 if (Ty->isPrimitiveType()) return Out << Ty->getDescription(); 212 213 // Check to see if the type is named. 214 map<const Type *, string>::iterator I = TypeNames.find(Ty); 215 if (I != TypeNames.end()) return Out << I->second; 216 217 // Otherwise we have a type that has not been named but is a derived type. 218 // Carefully recurse the type hierarchy to print out any contained symbolic 219 // names. 220 // 221 vector<const Type *> TypeStack; 222 string TypeName = calcTypeName(Ty, TypeStack, TypeNames); 223 TypeNames.insert(std::make_pair(Ty, TypeName));//Cache type name for later use 224 return Out << TypeName; 225} 226 227 228// WriteTypeSymbolic - This attempts to write the specified type as a symbolic 229// type, iff there is an entry in the modules symbol table for the specified 230// type or one of it's component types. This is slower than a simple x << Type; 231// 232ostream &WriteTypeSymbolic(ostream &Out, const Type *Ty, const Module *M) { 233 Out << " "; 234 235 // If they want us to print out a type, attempt to make it symbolic if there 236 // is a symbol table in the module... 237 if (M && M->hasSymbolTable()) { 238 map<const Type *, string> TypeNames; 239 fillTypeNameTable(M, TypeNames); 240 241 return printTypeInt(Out, Ty, TypeNames); 242 } else { 243 return Out << Ty->getDescription(); 244 } 245} 246 247 248// WriteAsOperand - Write the name of the specified value out to the specified 249// ostream. This can be useful when you just want to print int %reg126, not the 250// whole instruction that generated it. 251// 252ostream &WriteAsOperand(ostream &Out, const Value *V, bool PrintType, 253 bool PrintName, SlotCalculator *Table) { 254 if (PrintType) 255 WriteTypeSymbolic(Out, V->getType(), getModuleFromVal(V)); 256 257 WriteAsOperandInternal(Out, V, PrintName, Table); 258 return Out; 259} 260 261 262 263class AssemblyWriter { 264 ostream &Out; 265 SlotCalculator &Table; 266 const Module *TheModule; 267 map<const Type *, string> TypeNames; 268public: 269 inline AssemblyWriter(ostream &o, SlotCalculator &Tab, const Module *M) 270 : Out(o), Table(Tab), TheModule(M) { 271 272 // If the module has a symbol table, take all global types and stuff their 273 // names into the TypeNames map. 274 // 275 fillTypeNameTable(M, TypeNames); 276 } 277 278 inline void write(const Module *M) { printModule(M); } 279 inline void write(const GlobalVariable *G) { printGlobal(G); } 280 inline void write(const Function *F) { printFunction(F); } 281 inline void write(const BasicBlock *BB) { printBasicBlock(BB); } 282 inline void write(const Instruction *I) { printInstruction(I); } 283 inline void write(const Constant *CPV) { printConstant(CPV); } 284 inline void write(const Type *Ty) { printType(Ty); } 285 286private : 287 void printModule(const Module *M); 288 void printSymbolTable(const SymbolTable &ST); 289 void printConstant(const Constant *CPV); 290 void printGlobal(const GlobalVariable *GV); 291 void printFunction(const Function *F); 292 void printFunctionArgument(const FunctionArgument *FA); 293 void printBasicBlock(const BasicBlock *BB); 294 void printInstruction(const Instruction *I); 295 ostream &printType(const Type *Ty); 296 297 void writeOperand(const Value *Op, bool PrintType, bool PrintName = true); 298 299 // printInfoComment - Print a little comment after the instruction indicating 300 // which slot it occupies. 301 void printInfoComment(const Value *V); 302}; 303 304 305void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType, 306 bool PrintName) { 307 if (PrintType) { Out << " "; printType(Operand->getType()); } 308 WriteAsOperandInternal(Out, Operand, PrintName, &Table); 309} 310 311 312void AssemblyWriter::printModule(const Module *M) { 313 // Loop over the symbol table, emitting all named constants... 314 if (M->hasSymbolTable()) 315 printSymbolTable(*M->getSymbolTable()); 316 317 for_each(M->gbegin(), M->gend(), 318 bind_obj(this, &AssemblyWriter::printGlobal)); 319 320 Out << "implementation\n"; 321 322 // Output all of the functions... 323 for_each(M->begin(), M->end(), bind_obj(this,&AssemblyWriter::printFunction)); 324} 325 326void AssemblyWriter::printGlobal(const GlobalVariable *GV) { 327 if (GV->hasName()) Out << "%" << GV->getName() << " = "; 328 329 if (GV->hasInternalLinkage()) Out << "internal "; 330 if (!GV->hasInitializer()) Out << "uninitialized "; 331 332 Out << (GV->isConstant() ? "constant " : "global "); 333 printType(GV->getType()->getElementType()); 334 335 if (GV->hasInitializer()) 336 writeOperand(GV->getInitializer(), false, false); 337 338 printInfoComment(GV); 339 Out << "\n"; 340} 341 342 343// printSymbolTable - Run through symbol table looking for named constants 344// if a named constant is found, emit it's declaration... 345// 346void AssemblyWriter::printSymbolTable(const SymbolTable &ST) { 347 for (SymbolTable::const_iterator TI = ST.begin(); TI != ST.end(); ++TI) { 348 SymbolTable::type_const_iterator I = ST.type_begin(TI->first); 349 SymbolTable::type_const_iterator End = ST.type_end(TI->first); 350 351 for (; I != End; ++I) { 352 const Value *V = I->second; 353 if (const Constant *CPV = dyn_cast<const Constant>(V)) { 354 printConstant(CPV); 355 } else if (const Type *Ty = dyn_cast<const Type>(V)) { 356 Out << "\t%" << I->first << " = type " << Ty->getDescription() << "\n"; 357 } 358 } 359 } 360} 361 362 363// printConstant - Print out a constant pool entry... 364// 365void AssemblyWriter::printConstant(const Constant *CPV) { 366 // Don't print out unnamed constants, they will be inlined 367 if (!CPV->hasName()) return; 368 369 // Print out name... 370 Out << "\t%" << CPV->getName() << " = "; 371 372 // Print out the constant type... 373 printType(CPV->getType()); 374 375 // Write the value out now... 376 writeOperand(CPV, false, false); 377 378 if (!CPV->hasName() && CPV->getType() != Type::VoidTy) { 379 int Slot = Table.getValSlot(CPV); // Print out the def slot taken... 380 Out << "\t\t; <"; 381 printType(CPV->getType()) << ">:"; 382 if (Slot >= 0) Out << Slot; 383 else Out << "<badref>"; 384 } 385 386 Out << "\n"; 387} 388 389// printFunction - Print all aspects of a function. 390// 391void AssemblyWriter::printFunction(const Function *M) { 392 // Print out the return type and name... 393 Out << "\n" << (M->isExternal() ? "declare " : "") 394 << (M->hasInternalLinkage() ? "internal " : ""); 395 printType(M->getReturnType()) << " \"" << M->getName() << "\"("; 396 Table.incorporateFunction(M); 397 398 // Loop over the arguments, printing them... 399 const FunctionType *MT = M->getFunctionType(); 400 401 if (!M->isExternal()) { 402 for_each(M->getArgumentList().begin(), M->getArgumentList().end(), 403 bind_obj(this, &AssemblyWriter::printFunctionArgument)); 404 } else { 405 // Loop over the arguments, printing them... 406 const FunctionType *MT = M->getFunctionType(); 407 for (FunctionType::ParamTypes::const_iterator I = MT->getParamTypes().begin(), 408 E = MT->getParamTypes().end(); I != E; ++I) { 409 if (I != MT->getParamTypes().begin()) Out << ", "; 410 printType(*I); 411 } 412 } 413 414 // Finish printing arguments... 415 if (MT->isVarArg()) { 416 if (MT->getParamTypes().size()) Out << ", "; 417 Out << "..."; // Output varargs portion of signature! 418 } 419 Out << ")\n"; 420 421 if (!M->isExternal()) { 422 // Loop over the symbol table, emitting all named constants... 423 if (M->hasSymbolTable()) 424 printSymbolTable(*M->getSymbolTable()); 425 426 Out << "begin"; 427 428 // Output all of its basic blocks... for the function 429 for_each(M->begin(), M->end(), 430 bind_obj(this, &AssemblyWriter::printBasicBlock)); 431 432 Out << "end\n"; 433 } 434 435 Table.purgeFunction(); 436} 437 438// printFunctionArgument - This member is called for every argument that 439// is passed into the function. Simply print it out 440// 441void AssemblyWriter::printFunctionArgument(const FunctionArgument *Arg) { 442 // Insert commas as we go... the first arg doesn't get a comma 443 if (Arg != Arg->getParent()->getArgumentList().front()) Out << ", "; 444 445 // Output type... 446 printType(Arg->getType()); 447 448 // Output name, if available... 449 if (Arg->hasName()) 450 Out << " %" << Arg->getName(); 451 else if (Table.getValSlot(Arg) < 0) 452 Out << "<badref>"; 453} 454 455// printBasicBlock - This member is called for each basic block in a methd. 456// 457void AssemblyWriter::printBasicBlock(const BasicBlock *BB) { 458 if (BB->hasName()) { // Print out the label if it exists... 459 Out << "\n" << BB->getName() << ":"; 460 } else { 461 int Slot = Table.getValSlot(BB); 462 Out << "\n; <label>:"; 463 if (Slot >= 0) 464 Out << Slot; // Extra newline seperates out label's 465 else 466 Out << "<badref>"; 467 } 468 Out << "\t\t\t\t\t;[#uses=" << BB->use_size() << "]\n"; // Output # uses 469 470 // Output all of the instructions in the basic block... 471 for_each(BB->begin(), BB->end(), 472 bind_obj(this, &AssemblyWriter::printInstruction)); 473} 474 475 476// printInfoComment - Print a little comment after the instruction indicating 477// which slot it occupies. 478// 479void AssemblyWriter::printInfoComment(const Value *V) { 480 if (V->getType() != Type::VoidTy) { 481 Out << "\t\t; <"; 482 printType(V->getType()) << ">"; 483 484 if (!V->hasName()) { 485 int Slot = Table.getValSlot(V); // Print out the def slot taken... 486 if (Slot >= 0) Out << ":" << Slot; 487 else Out << ":<badref>"; 488 } 489 Out << " [#uses=" << V->use_size() << "]"; // Output # uses 490 } 491} 492 493// printInstruction - This member is called for each Instruction in a methd. 494// 495void AssemblyWriter::printInstruction(const Instruction *I) { 496 Out << "\t"; 497 498 // Print out name if it exists... 499 if (I && I->hasName()) 500 Out << "%" << I->getName() << " = "; 501 502 // Print out the opcode... 503 Out << I->getOpcodeName(); 504 505 // Print out the type of the operands... 506 const Value *Operand = I->getNumOperands() ? I->getOperand(0) : 0; 507 508 // Special case conditional branches to swizzle the condition out to the front 509 if (I->getOpcode() == Instruction::Br && I->getNumOperands() > 1) { 510 writeOperand(I->getOperand(2), true); 511 Out << ","; 512 writeOperand(Operand, true); 513 Out << ","; 514 writeOperand(I->getOperand(1), true); 515 516 } else if (I->getOpcode() == Instruction::Switch) { 517 // Special case switch statement to get formatting nice and correct... 518 writeOperand(Operand , true); Out << ","; 519 writeOperand(I->getOperand(1), true); Out << " ["; 520 521 for (unsigned op = 2, Eop = I->getNumOperands(); op < Eop; op += 2) { 522 Out << "\n\t\t"; 523 writeOperand(I->getOperand(op ), true); Out << ","; 524 writeOperand(I->getOperand(op+1), true); 525 } 526 Out << "\n\t]"; 527 } else if (isa<PHINode>(I)) { 528 Out << " "; 529 printType(I->getType()); 530 Out << " "; 531 532 for (unsigned op = 0, Eop = I->getNumOperands(); op < Eop; op += 2) { 533 if (op) Out << ", "; 534 Out << "["; 535 writeOperand(I->getOperand(op ), false); Out << ","; 536 writeOperand(I->getOperand(op+1), false); Out << " ]"; 537 } 538 } else if (isa<ReturnInst>(I) && !Operand) { 539 Out << " void"; 540 } else if (isa<CallInst>(I)) { 541 const PointerType *PTy = dyn_cast<PointerType>(Operand->getType()); 542 const FunctionType*MTy = PTy ? dyn_cast<FunctionType>(PTy->getElementType()):0; 543 const Type *RetTy = MTy ? MTy->getReturnType() : 0; 544 545 // If possible, print out the short form of the call instruction, but we can 546 // only do this if the first argument is a pointer to a nonvararg function, 547 // and if the value returned is not a pointer to a function. 548 // 549 if (RetTy && !MTy->isVarArg() && 550 (!isa<PointerType>(RetTy)||!isa<FunctionType>(cast<PointerType>(RetTy)))){ 551 Out << " "; printType(RetTy); 552 writeOperand(Operand, false); 553 } else { 554 writeOperand(Operand, true); 555 } 556 Out << "("; 557 if (I->getNumOperands() > 1) writeOperand(I->getOperand(1), true); 558 for (unsigned op = 2, Eop = I->getNumOperands(); op < Eop; ++op) { 559 Out << ","; 560 writeOperand(I->getOperand(op), true); 561 } 562 563 Out << " )"; 564 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(I)) { 565 // TODO: Should try to print out short form of the Invoke instruction 566 writeOperand(Operand, true); 567 Out << "("; 568 if (I->getNumOperands() > 3) writeOperand(I->getOperand(3), true); 569 for (unsigned op = 4, Eop = I->getNumOperands(); op < Eop; ++op) { 570 Out << ","; 571 writeOperand(I->getOperand(op), true); 572 } 573 574 Out << " )\n\t\t\tto"; 575 writeOperand(II->getNormalDest(), true); 576 Out << " except"; 577 writeOperand(II->getExceptionalDest(), true); 578 579 } else if (I->getOpcode() == Instruction::Malloc || 580 I->getOpcode() == Instruction::Alloca) { 581 Out << " "; 582 printType(cast<const PointerType>(I->getType())->getElementType()); 583 if (I->getNumOperands()) { 584 Out << ","; 585 writeOperand(I->getOperand(0), true); 586 } 587 } else if (isa<CastInst>(I)) { 588 writeOperand(Operand, true); 589 Out << " to "; 590 printType(I->getType()); 591 } else if (Operand) { // Print the normal way... 592 593 // PrintAllTypes - Instructions who have operands of all the same type 594 // omit the type from all but the first operand. If the instruction has 595 // different type operands (for example br), then they are all printed. 596 bool PrintAllTypes = false; 597 const Type *TheType = Operand->getType(); 598 599 for (unsigned i = 1, E = I->getNumOperands(); i != E; ++i) { 600 Operand = I->getOperand(i); 601 if (Operand->getType() != TheType) { 602 PrintAllTypes = true; // We have differing types! Print them all! 603 break; 604 } 605 } 606 607 // Shift Left & Right print both types even for Ubyte LHS 608 if (isa<ShiftInst>(I)) PrintAllTypes = true; 609 610 if (!PrintAllTypes) { 611 Out << " "; 612 printType(I->getOperand(0)->getType()); 613 } 614 615 for (unsigned i = 0, E = I->getNumOperands(); i != E; ++i) { 616 if (i) Out << ","; 617 writeOperand(I->getOperand(i), PrintAllTypes); 618 } 619 } 620 621 printInfoComment(I); 622 Out << "\n"; 623} 624 625 626// printType - Go to extreme measures to attempt to print out a short, symbolic 627// version of a type name. 628// 629ostream &AssemblyWriter::printType(const Type *Ty) { 630 return printTypeInt(Out, Ty, TypeNames); 631} 632 633 634//===----------------------------------------------------------------------===// 635// External Interface declarations 636//===----------------------------------------------------------------------===// 637 638 639 640void WriteToAssembly(const Module *M, ostream &o) { 641 if (M == 0) { o << "<null> module\n"; return; } 642 SlotCalculator SlotTable(M, true); 643 AssemblyWriter W(o, SlotTable, M); 644 645 W.write(M); 646} 647 648void WriteToAssembly(const GlobalVariable *G, ostream &o) { 649 if (G == 0) { o << "<null> global variable\n"; return; } 650 SlotCalculator SlotTable(G->getParent(), true); 651 AssemblyWriter W(o, SlotTable, G->getParent()); 652 W.write(G); 653} 654 655void WriteToAssembly(const Function *F, ostream &o) { 656 if (F == 0) { o << "<null> function\n"; return; } 657 SlotCalculator SlotTable(F->getParent(), true); 658 AssemblyWriter W(o, SlotTable, F->getParent()); 659 660 W.write(F); 661} 662 663 664void WriteToAssembly(const BasicBlock *BB, ostream &o) { 665 if (BB == 0) { o << "<null> basic block\n"; return; } 666 667 SlotCalculator SlotTable(BB->getParent(), true); 668 AssemblyWriter W(o, SlotTable, 669 BB->getParent() ? BB->getParent()->getParent() : 0); 670 671 W.write(BB); 672} 673 674void WriteToAssembly(const Constant *CPV, ostream &o) { 675 if (CPV == 0) { o << "<null> constant pool value\n"; return; } 676 o << " " << CPV->getType()->getDescription() << " " << CPV->getStrValue(); 677} 678 679void WriteToAssembly(const Instruction *I, ostream &o) { 680 if (I == 0) { o << "<null> instruction\n"; return; } 681 682 const Function *F = I->getParent() ? I->getParent()->getParent() : 0; 683 SlotCalculator SlotTable(F, true); 684 AssemblyWriter W(o, SlotTable, F ? F->getParent() : 0); 685 686 W.write(I); 687} 688 689void CachedWriter::setModule(const Module *M) { 690 delete SC; delete AW; 691 if (M) { 692 SC = new SlotCalculator(M, true); 693 AW = new AssemblyWriter(Out, *SC, M); 694 } else { 695 SC = 0; AW = 0; 696 } 697} 698 699CachedWriter::~CachedWriter() { 700 delete AW; 701 delete SC; 702} 703 704CachedWriter &CachedWriter::operator<<(const Value *V) { 705 assert(AW && SC && "CachedWriter does not have a current module!"); 706 switch (V->getValueType()) { 707 case Value::ConstantVal: 708 Out << " "; AW->write(V->getType()); 709 Out << " " << cast<Constant>(V)->getStrValue(); break; 710 case Value::FunctionArgumentVal: 711 AW->write(V->getType()); Out << " " << V->getName(); break; 712 case Value::TypeVal: AW->write(cast<const Type>(V)); break; 713 case Value::InstructionVal: AW->write(cast<Instruction>(V)); break; 714 case Value::BasicBlockVal: AW->write(cast<BasicBlock>(V)); break; 715 case Value::FunctionVal: AW->write(cast<Function>(V)); break; 716 case Value::GlobalVariableVal: AW->write(cast<GlobalVariable>(V)); break; 717 case Value::ModuleVal: AW->write(cast<Module>(V)); break; 718 default: Out << "<unknown value type: " << V->getValueType() << ">"; break; 719 } 720 return *this; 721} 722