AsmWriter.cpp revision f7a551fd929a4a849883cde04cfe54e0590a38b7
1//===-- Writer.cpp - Library for Printing VM assembly files ------*- C++ -*--=// 2// 3// This library implements the functionality defined in llvm/Assembly/Writer.h 4// 5// This library uses the Analysis library to figure out offsets for 6// variables in the method tables... 7// 8// TODO: print out the type name instead of the full type if a particular type 9// is in the symbol table... 10// 11//===----------------------------------------------------------------------===// 12 13#include "llvm/Assembly/CachedWriter.h" 14#include "llvm/Analysis/SlotCalculator.h" 15#include "llvm/Module.h" 16#include "llvm/Method.h" 17#include "llvm/GlobalVariable.h" 18#include "llvm/BasicBlock.h" 19#include "llvm/ConstantVals.h" 20#include "llvm/iMemory.h" 21#include "llvm/iTerminators.h" 22#include "llvm/iPHINode.h" 23#include "llvm/iOther.h" 24#include "llvm/SymbolTable.h" 25#include "Support/StringExtras.h" 26#include "Support/STLExtras.h" 27#include <algorithm> 28#include <map> 29 30static const Module *getModuleFromVal(const Value *V) { 31 if (const MethodArgument *MA =dyn_cast<const MethodArgument>(V)) 32 return MA->getParent() ? MA->getParent()->getParent() : 0; 33 else if (const BasicBlock *BB = dyn_cast<const BasicBlock>(V)) 34 return BB->getParent() ? BB->getParent()->getParent() : 0; 35 else if (const Instruction *I = dyn_cast<const Instruction>(V)) { 36 const Method *M = I->getParent() ? I->getParent()->getParent() : 0; 37 return M ? M->getParent() : 0; 38 } else if (const GlobalValue *GV =dyn_cast<const GlobalValue>(V)) 39 return GV->getParent(); 40 else if (const Module *Mod = dyn_cast<const Module>(V)) 41 return Mod; 42 return 0; 43} 44 45static SlotCalculator *createSlotCalculator(const Value *V) { 46 assert(!isa<Type>(V) && "Can't create an SC for a type!"); 47 if (const MethodArgument *MA =dyn_cast<const MethodArgument>(V)){ 48 return new SlotCalculator(MA->getParent(), true); 49 } else if (const Instruction *I = dyn_cast<const Instruction>(V)) { 50 return new SlotCalculator(I->getParent()->getParent(), true); 51 } else if (const BasicBlock *BB = dyn_cast<const BasicBlock>(V)) { 52 return new SlotCalculator(BB->getParent(), true); 53 } else if (const GlobalVariable *GV =dyn_cast<const GlobalVariable>(V)){ 54 return new SlotCalculator(GV->getParent(), true); 55 } else if (const Method *Meth = dyn_cast<const Method>(V)) { 56 return new SlotCalculator(Meth, true); 57 } else if (const Module *Mod = dyn_cast<const Module>(V)) { 58 return new SlotCalculator(Mod, true); 59 } 60 return 0; 61} 62 63// WriteAsOperand - Write the name of the specified value out to the specified 64// ostream. This can be useful when you just want to print int %reg126, not the 65// whole instruction that generated it. 66// 67static void WriteAsOperandInternal(ostream &Out, const Value *V, bool PrintName, 68 SlotCalculator *Table) { 69 if (PrintName && V->hasName()) { 70 Out << " %" << V->getName(); 71 } else { 72 if (const Constant *CPV = dyn_cast<const Constant>(V)) { 73 Out << " " << CPV->getStrValue(); 74 } else { 75 int Slot; 76 if (Table) { 77 Slot = Table->getValSlot(V); 78 } else { 79 if (const Type *Ty = dyn_cast<const Type>(V)) { 80 Out << " " << Ty->getDescription(); 81 return; 82 } 83 84 Table = createSlotCalculator(V); 85 if (Table == 0) { Out << "BAD VALUE TYPE!"; return; } 86 87 Slot = Table->getValSlot(V); 88 delete Table; 89 } 90 if (Slot >= 0) Out << " %" << Slot; 91 else if (PrintName) 92 Out << "<badref>"; // Not embeded into a location? 93 } 94 } 95} 96 97 98// If the module has a symbol table, take all global types and stuff their 99// names into the TypeNames map. 100// 101static void fillTypeNameTable(const Module *M, 102 map<const Type *, string> &TypeNames) { 103 if (M && M->hasSymbolTable()) { 104 const SymbolTable *ST = M->getSymbolTable(); 105 SymbolTable::const_iterator PI = ST->find(Type::TypeTy); 106 if (PI != ST->end()) { 107 SymbolTable::type_const_iterator I = PI->second.begin(); 108 for (; I != PI->second.end(); ++I) { 109 // As a heuristic, don't insert pointer to primitive types, because 110 // they are used too often to have a single useful name. 111 // 112 const Type *Ty = cast<const Type>(I->second); 113 if (!isa<PointerType>(Ty) || 114 !cast<PointerType>(Ty)->getElementType()->isPrimitiveType()) 115 TypeNames.insert(make_pair(Ty, "%"+I->first)); 116 } 117 } 118 } 119} 120 121 122 123static string calcTypeName(const Type *Ty, vector<const Type *> &TypeStack, 124 map<const Type *, string> &TypeNames) { 125 if (Ty->isPrimitiveType()) return Ty->getDescription(); // Base case 126 127 // Check to see if the type is named. 128 map<const Type *, string>::iterator I = TypeNames.find(Ty); 129 if (I != TypeNames.end()) return I->second; 130 131 // Check to see if the Type is already on the stack... 132 unsigned Slot = 0, CurSize = TypeStack.size(); 133 while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type 134 135 // This is another base case for the recursion. In this case, we know 136 // that we have looped back to a type that we have previously visited. 137 // Generate the appropriate upreference to handle this. 138 // 139 if (Slot < CurSize) 140 return "\\" + utostr(CurSize-Slot); // Here's the upreference 141 142 TypeStack.push_back(Ty); // Recursive case: Add us to the stack.. 143 144 string Result; 145 switch (Ty->getPrimitiveID()) { 146 case Type::MethodTyID: { 147 const MethodType *MTy = cast<const MethodType>(Ty); 148 Result = calcTypeName(MTy->getReturnType(), TypeStack, TypeNames) + " ("; 149 for (MethodType::ParamTypes::const_iterator 150 I = MTy->getParamTypes().begin(), 151 E = MTy->getParamTypes().end(); I != E; ++I) { 152 if (I != MTy->getParamTypes().begin()) 153 Result += ", "; 154 Result += calcTypeName(*I, TypeStack, TypeNames); 155 } 156 if (MTy->isVarArg()) { 157 if (!MTy->getParamTypes().empty()) Result += ", "; 158 Result += "..."; 159 } 160 Result += ")"; 161 break; 162 } 163 case Type::StructTyID: { 164 const StructType *STy = cast<const StructType>(Ty); 165 Result = "{ "; 166 for (StructType::ElementTypes::const_iterator 167 I = STy->getElementTypes().begin(), 168 E = STy->getElementTypes().end(); I != E; ++I) { 169 if (I != STy->getElementTypes().begin()) 170 Result += ", "; 171 Result += calcTypeName(*I, TypeStack, TypeNames); 172 } 173 Result += " }"; 174 break; 175 } 176 case Type::PointerTyID: 177 Result = calcTypeName(cast<const PointerType>(Ty)->getElementType(), 178 TypeStack, TypeNames) + " *"; 179 break; 180 case Type::ArrayTyID: { 181 const ArrayType *ATy = cast<const ArrayType>(Ty); 182 int NumElements = ATy->getNumElements(); 183 Result = "["; 184 if (NumElements != -1) Result += itostr(NumElements) + " x "; 185 Result += calcTypeName(ATy->getElementType(), TypeStack, TypeNames) + "]"; 186 break; 187 } 188 default: 189 assert(0 && "Unhandled case in getTypeProps!"); 190 Result = "<error>"; 191 } 192 193 TypeStack.pop_back(); // Remove self from stack... 194 return Result; 195} 196 197 198// printTypeInt - The internal guts of printing out a type that has a 199// potentially named portion. 200// 201static ostream &printTypeInt(ostream &Out, const Type *Ty, 202 map<const Type *, string> &TypeNames) { 203 // Primitive types always print out their description, regardless of whether 204 // they have been named or not. 205 // 206 if (Ty->isPrimitiveType()) return Out << Ty->getDescription(); 207 208 // Check to see if the type is named. 209 map<const Type *, string>::iterator I = TypeNames.find(Ty); 210 if (I != TypeNames.end()) return Out << I->second; 211 212 // Otherwise we have a type that has not been named but is a derived type. 213 // Carefully recurse the type hierarchy to print out any contained symbolic 214 // names. 215 // 216 vector<const Type *> TypeStack; 217 string TypeName = calcTypeName(Ty, TypeStack, TypeNames); 218 TypeNames.insert(make_pair(Ty, TypeName)); // Cache type name for later use 219 return Out << TypeName; 220} 221 222 223// WriteTypeSymbolic - This attempts to write the specified type as a symbolic 224// type, iff there is an entry in the modules symbol table for the specified 225// type or one of it's component types. This is slower than a simple x << Type; 226// 227ostream &WriteTypeSymbolic(ostream &Out, const Type *Ty, const Module *M) { 228 Out << " "; 229 230 // If they want us to print out a type, attempt to make it symbolic if there 231 // is a symbol table in the module... 232 if (M && M->hasSymbolTable()) { 233 map<const Type *, string> TypeNames; 234 fillTypeNameTable(M, TypeNames); 235 236 return printTypeInt(Out, Ty, TypeNames); 237 } else { 238 return Out << Ty->getDescription(); 239 } 240} 241 242 243// WriteAsOperand - Write the name of the specified value out to the specified 244// ostream. This can be useful when you just want to print int %reg126, not the 245// whole instruction that generated it. 246// 247ostream &WriteAsOperand(ostream &Out, const Value *V, bool PrintType, 248 bool PrintName, SlotCalculator *Table) { 249 if (PrintType) 250 WriteTypeSymbolic(Out, V->getType(), getModuleFromVal(V)); 251 252 WriteAsOperandInternal(Out, V, PrintName, Table); 253 return Out; 254} 255 256 257 258class AssemblyWriter { 259 ostream &Out; 260 SlotCalculator &Table; 261 const Module *TheModule; 262 map<const Type *, string> TypeNames; 263public: 264 inline AssemblyWriter(ostream &o, SlotCalculator &Tab, const Module *M) 265 : Out(o), Table(Tab), TheModule(M) { 266 267 // If the module has a symbol table, take all global types and stuff their 268 // names into the TypeNames map. 269 // 270 fillTypeNameTable(M, TypeNames); 271 } 272 273 inline void write(const Module *M) { printModule(M); } 274 inline void write(const GlobalVariable *G) { printGlobal(G); } 275 inline void write(const Method *M) { printMethod(M); } 276 inline void write(const BasicBlock *BB) { printBasicBlock(BB); } 277 inline void write(const Instruction *I) { printInstruction(I); } 278 inline void write(const Constant *CPV) { printConstant(CPV); } 279 inline void write(const Type *Ty) { printType(Ty); } 280 281private : 282 void printModule(const Module *M); 283 void printSymbolTable(const SymbolTable &ST); 284 void printConstant(const Constant *CPV); 285 void printGlobal(const GlobalVariable *GV); 286 void printMethod(const Method *M); 287 void printMethodArgument(const MethodArgument *MA); 288 void printBasicBlock(const BasicBlock *BB); 289 void printInstruction(const Instruction *I); 290 ostream &printType(const Type *Ty); 291 292 void writeOperand(const Value *Op, bool PrintType, bool PrintName = true); 293 294 // printInfoComment - Print a little comment after the instruction indicating 295 // which slot it occupies. 296 void printInfoComment(const Value *V); 297}; 298 299 300void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType, 301 bool PrintName) { 302 if (PrintType) { Out << " "; printType(Operand->getType()); } 303 WriteAsOperandInternal(Out, Operand, PrintName, &Table); 304} 305 306 307void AssemblyWriter::printModule(const Module *M) { 308 // Loop over the symbol table, emitting all named constants... 309 if (M->hasSymbolTable()) 310 printSymbolTable(*M->getSymbolTable()); 311 312 for_each(M->gbegin(), M->gend(), 313 bind_obj(this, &AssemblyWriter::printGlobal)); 314 315 Out << "implementation\n"; 316 317 // Output all of the methods... 318 for_each(M->begin(), M->end(), bind_obj(this,&AssemblyWriter::printMethod)); 319} 320 321void AssemblyWriter::printGlobal(const GlobalVariable *GV) { 322 if (GV->hasName()) Out << "%" << GV->getName() << " = "; 323 324 if (GV->hasInternalLinkage()) Out << "internal "; 325 if (!GV->hasInitializer()) Out << "uninitialized "; 326 327 Out << (GV->isConstant() ? "constant " : "global "); 328 printType(GV->getType()->getElementType()); 329 330 if (GV->hasInitializer()) 331 writeOperand(GV->getInitializer(), false, false); 332 333 printInfoComment(GV); 334 Out << endl; 335} 336 337 338// printSymbolTable - Run through symbol table looking for named constants 339// if a named constant is found, emit it's declaration... 340// 341void AssemblyWriter::printSymbolTable(const SymbolTable &ST) { 342 for (SymbolTable::const_iterator TI = ST.begin(); TI != ST.end(); ++TI) { 343 SymbolTable::type_const_iterator I = ST.type_begin(TI->first); 344 SymbolTable::type_const_iterator End = ST.type_end(TI->first); 345 346 for (; I != End; ++I) { 347 const Value *V = I->second; 348 if (const Constant *CPV = dyn_cast<const Constant>(V)) { 349 printConstant(CPV); 350 } else if (const Type *Ty = dyn_cast<const Type>(V)) { 351 Out << "\t%" << I->first << " = type " << Ty->getDescription() << endl; 352 } 353 } 354 } 355} 356 357 358// printConstant - Print out a constant pool entry... 359// 360void AssemblyWriter::printConstant(const Constant *CPV) { 361 // Don't print out unnamed constants, they will be inlined 362 if (!CPV->hasName()) return; 363 364 // Print out name... 365 Out << "\t%" << CPV->getName() << " = "; 366 367 // Print out the constant type... 368 printType(CPV->getType()); 369 370 // Write the value out now... 371 writeOperand(CPV, false, false); 372 373 if (!CPV->hasName() && CPV->getType() != Type::VoidTy) { 374 int Slot = Table.getValSlot(CPV); // Print out the def slot taken... 375 Out << "\t\t; <"; 376 printType(CPV->getType()) << ">:"; 377 if (Slot >= 0) Out << Slot; 378 else Out << "<badref>"; 379 } 380 381 Out << endl; 382} 383 384// printMethod - Print all aspects of a method. 385// 386void AssemblyWriter::printMethod(const Method *M) { 387 // Print out the return type and name... 388 Out << "\n" << (M->isExternal() ? "declare " : "") 389 << (M->hasInternalLinkage() ? "internal " : ""); 390 printType(M->getReturnType()) << " \"" << M->getName() << "\"("; 391 Table.incorporateMethod(M); 392 393 // Loop over the arguments, printing them... 394 const MethodType *MT = cast<const MethodType>(M->getMethodType()); 395 396 if (!M->isExternal()) { 397 for_each(M->getArgumentList().begin(), M->getArgumentList().end(), 398 bind_obj(this, &AssemblyWriter::printMethodArgument)); 399 } else { 400 // Loop over the arguments, printing them... 401 const MethodType *MT = cast<const MethodType>(M->getMethodType()); 402 for (MethodType::ParamTypes::const_iterator I = MT->getParamTypes().begin(), 403 E = MT->getParamTypes().end(); I != E; ++I) { 404 if (I != MT->getParamTypes().begin()) Out << ", "; 405 printType(*I); 406 } 407 } 408 409 // Finish printing arguments... 410 if (MT->isVarArg()) { 411 if (MT->getParamTypes().size()) Out << ", "; 412 Out << "..."; // Output varargs portion of signature! 413 } 414 Out << ")\n"; 415 416 if (!M->isExternal()) { 417 // Loop over the symbol table, emitting all named constants... 418 if (M->hasSymbolTable()) 419 printSymbolTable(*M->getSymbolTable()); 420 421 Out << "begin"; 422 423 // Output all of its basic blocks... for the method 424 for_each(M->begin(), M->end(), 425 bind_obj(this, &AssemblyWriter::printBasicBlock)); 426 427 Out << "end\n"; 428 } 429 430 Table.purgeMethod(); 431} 432 433// printMethodArgument - This member is called for every argument that 434// is passed into the method. Simply print it out 435// 436void AssemblyWriter::printMethodArgument(const MethodArgument *Arg) { 437 // Insert commas as we go... the first arg doesn't get a comma 438 if (Arg != Arg->getParent()->getArgumentList().front()) Out << ", "; 439 440 // Output type... 441 printType(Arg->getType()); 442 443 // Output name, if available... 444 if (Arg->hasName()) 445 Out << " %" << Arg->getName(); 446 else if (Table.getValSlot(Arg) < 0) 447 Out << "<badref>"; 448} 449 450// printBasicBlock - This member is called for each basic block in a methd. 451// 452void AssemblyWriter::printBasicBlock(const BasicBlock *BB) { 453 if (BB->hasName()) { // Print out the label if it exists... 454 Out << "\n" << BB->getName() << ":"; 455 } else { 456 int Slot = Table.getValSlot(BB); 457 Out << "\n; <label>:"; 458 if (Slot >= 0) 459 Out << Slot; // Extra newline seperates out label's 460 else 461 Out << "<badref>"; 462 } 463 Out << "\t\t\t\t\t;[#uses=" << BB->use_size() << "]\n"; // Output # uses 464 465 // Output all of the instructions in the basic block... 466 for_each(BB->begin(), BB->end(), 467 bind_obj(this, &AssemblyWriter::printInstruction)); 468} 469 470 471// printInfoComment - Print a little comment after the instruction indicating 472// which slot it occupies. 473// 474void AssemblyWriter::printInfoComment(const Value *V) { 475 if (V->getType() != Type::VoidTy) { 476 Out << "\t\t; <"; 477 printType(V->getType()) << ">"; 478 479 if (!V->hasName()) { 480 int Slot = Table.getValSlot(V); // Print out the def slot taken... 481 if (Slot >= 0) Out << ":" << Slot; 482 else Out << ":<badref>"; 483 } 484 Out << " [#uses=" << V->use_size() << "]"; // Output # uses 485 } 486} 487 488// printInstruction - This member is called for each Instruction in a methd. 489// 490void AssemblyWriter::printInstruction(const Instruction *I) { 491 Out << "\t"; 492 493 // Print out name if it exists... 494 if (I && I->hasName()) 495 Out << "%" << I->getName() << " = "; 496 497 // Print out the opcode... 498 Out << I->getOpcodeName(); 499 500 // Print out the type of the operands... 501 const Value *Operand = I->getNumOperands() ? I->getOperand(0) : 0; 502 503 // Special case conditional branches to swizzle the condition out to the front 504 if (I->getOpcode() == Instruction::Br && I->getNumOperands() > 1) { 505 writeOperand(I->getOperand(2), true); 506 Out << ","; 507 writeOperand(Operand, true); 508 Out << ","; 509 writeOperand(I->getOperand(1), true); 510 511 } else if (I->getOpcode() == Instruction::Switch) { 512 // Special case switch statement to get formatting nice and correct... 513 writeOperand(Operand , true); Out << ","; 514 writeOperand(I->getOperand(1), true); Out << " ["; 515 516 for (unsigned op = 2, Eop = I->getNumOperands(); op < Eop; op += 2) { 517 Out << "\n\t\t"; 518 writeOperand(I->getOperand(op ), true); Out << ","; 519 writeOperand(I->getOperand(op+1), true); 520 } 521 Out << "\n\t]"; 522 } else if (isa<PHINode>(I)) { 523 Out << " "; 524 printType(I->getType()); 525 Out << " "; 526 527 for (unsigned op = 0, Eop = I->getNumOperands(); op < Eop; op += 2) { 528 if (op) Out << ", "; 529 Out << "["; 530 writeOperand(I->getOperand(op ), false); Out << ","; 531 writeOperand(I->getOperand(op+1), false); Out << " ]"; 532 } 533 } else if (isa<ReturnInst>(I) && !Operand) { 534 Out << " void"; 535 } else if (isa<CallInst>(I)) { 536 const PointerType *PTy = dyn_cast<PointerType>(Operand->getType()); 537 const MethodType *MTy = PTy ?dyn_cast<MethodType>(PTy->getElementType()):0; 538 const Type *RetTy = MTy ? MTy->getReturnType() : 0; 539 540 // If possible, print out the short form of the call instruction, but we can 541 // only do this if the first argument is a pointer to a nonvararg method, 542 // and if the value returned is not a pointer to a method. 543 // 544 if (RetTy && !MTy->isVarArg() && 545 (!isa<PointerType>(RetTy)||!isa<MethodType>(cast<PointerType>(RetTy)))){ 546 Out << " "; printType(RetTy); 547 writeOperand(Operand, false); 548 } else { 549 writeOperand(Operand, true); 550 } 551 Out << "("; 552 if (I->getNumOperands() > 1) writeOperand(I->getOperand(1), true); 553 for (unsigned op = 2, Eop = I->getNumOperands(); op < Eop; ++op) { 554 Out << ","; 555 writeOperand(I->getOperand(op), true); 556 } 557 558 Out << " )"; 559 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(I)) { 560 // TODO: Should try to print out short form of the Invoke instruction 561 writeOperand(Operand, true); 562 Out << "("; 563 if (I->getNumOperands() > 3) writeOperand(I->getOperand(3), true); 564 for (unsigned op = 4, Eop = I->getNumOperands(); op < Eop; ++op) { 565 Out << ","; 566 writeOperand(I->getOperand(op), true); 567 } 568 569 Out << " )\n\t\t\tto"; 570 writeOperand(II->getNormalDest(), true); 571 Out << " except"; 572 writeOperand(II->getExceptionalDest(), true); 573 574 } else if (I->getOpcode() == Instruction::Malloc || 575 I->getOpcode() == Instruction::Alloca) { 576 Out << " "; 577 printType(cast<const PointerType>(I->getType())->getElementType()); 578 if (I->getNumOperands()) { 579 Out << ","; 580 writeOperand(I->getOperand(0), true); 581 } 582 } else if (isa<CastInst>(I)) { 583 writeOperand(Operand, true); 584 Out << " to "; 585 printType(I->getType()); 586 } else if (Operand) { // Print the normal way... 587 588 // PrintAllTypes - Instructions who have operands of all the same type 589 // omit the type from all but the first operand. If the instruction has 590 // different type operands (for example br), then they are all printed. 591 bool PrintAllTypes = false; 592 const Type *TheType = Operand->getType(); 593 594 for (unsigned i = 1, E = I->getNumOperands(); i != E; ++i) { 595 Operand = I->getOperand(i); 596 if (Operand->getType() != TheType) { 597 PrintAllTypes = true; // We have differing types! Print them all! 598 break; 599 } 600 } 601 602 // Shift Left & Right print both types even for Ubyte LHS 603 if (isa<ShiftInst>(I)) PrintAllTypes = true; 604 605 if (!PrintAllTypes) { 606 Out << " "; 607 printType(I->getOperand(0)->getType()); 608 } 609 610 for (unsigned i = 0, E = I->getNumOperands(); i != E; ++i) { 611 if (i) Out << ","; 612 writeOperand(I->getOperand(i), PrintAllTypes); 613 } 614 } 615 616 printInfoComment(I); 617 Out << endl; 618} 619 620 621// printType - Go to extreme measures to attempt to print out a short, symbolic 622// version of a type name. 623// 624ostream &AssemblyWriter::printType(const Type *Ty) { 625 return printTypeInt(Out, Ty, TypeNames); 626} 627 628 629//===----------------------------------------------------------------------===// 630// External Interface declarations 631//===----------------------------------------------------------------------===// 632 633 634 635void WriteToAssembly(const Module *M, ostream &o) { 636 if (M == 0) { o << "<null> module\n"; return; } 637 SlotCalculator SlotTable(M, true); 638 AssemblyWriter W(o, SlotTable, M); 639 640 W.write(M); 641} 642 643void WriteToAssembly(const GlobalVariable *G, ostream &o) { 644 if (G == 0) { o << "<null> global variable\n"; return; } 645 SlotCalculator SlotTable(G->getParent(), true); 646 AssemblyWriter W(o, SlotTable, G->getParent()); 647 W.write(G); 648} 649 650void WriteToAssembly(const Method *M, ostream &o) { 651 if (M == 0) { o << "<null> method\n"; return; } 652 SlotCalculator SlotTable(M->getParent(), true); 653 AssemblyWriter W(o, SlotTable, M->getParent()); 654 655 W.write(M); 656} 657 658 659void WriteToAssembly(const BasicBlock *BB, ostream &o) { 660 if (BB == 0) { o << "<null> basic block\n"; return; } 661 662 SlotCalculator SlotTable(BB->getParent(), true); 663 AssemblyWriter W(o, SlotTable, 664 BB->getParent() ? BB->getParent()->getParent() : 0); 665 666 W.write(BB); 667} 668 669void WriteToAssembly(const Constant *CPV, ostream &o) { 670 if (CPV == 0) { o << "<null> constant pool value\n"; return; } 671 o << " " << CPV->getType()->getDescription() << " " << CPV->getStrValue(); 672} 673 674void WriteToAssembly(const Instruction *I, ostream &o) { 675 if (I == 0) { o << "<null> instruction\n"; return; } 676 677 const Method *M = I->getParent() ? I->getParent()->getParent() : 0; 678 SlotCalculator SlotTable(M, true); 679 AssemblyWriter W(o, SlotTable, M ? M->getParent() : 0); 680 681 W.write(I); 682} 683 684void CachedWriter::setModule(const Module *M) { 685 delete SC; delete AW; 686 if (M) { 687 SC = new SlotCalculator(M, true); 688 AW = new AssemblyWriter(Out, *SC, M); 689 } else { 690 SC = 0; AW = 0; 691 } 692} 693 694CachedWriter::~CachedWriter() { 695 delete AW; 696 delete SC; 697} 698 699CachedWriter &CachedWriter::operator<<(const Value *V) { 700 assert(AW && SC && "CachedWriter does not have a current module!"); 701 switch (V->getValueType()) { 702 case Value::ConstantVal: 703 Out << " "; AW->write(V->getType()); 704 Out << " " << cast<Constant>(V)->getStrValue(); break; 705 case Value::MethodArgumentVal: 706 AW->write(V->getType()); Out << " " << V->getName(); break; 707 case Value::TypeVal: AW->write(cast<const Type>(V)); break; 708 case Value::InstructionVal: AW->write(cast<Instruction>(V)); break; 709 case Value::BasicBlockVal: AW->write(cast<BasicBlock>(V)); break; 710 case Value::MethodVal: AW->write(cast<Method>(V)); break; 711 case Value::GlobalVariableVal: AW->write(cast<GlobalVariable>(V)); break; 712 case Value::ModuleVal: AW->write(cast<Module>(V)); break; 713 default: Out << "<unknown value type: " << V->getValueType() << ">"; break; 714 } 715 return *this; 716} 717