CPPBackend.cpp revision 193323
1//===-- CPPBackend.cpp - Library for converting LLVM code to C++ code -----===// 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 implements the writing of the LLVM IR as a set of C++ calls to the 11// LLVM IR interface. The input module is assumed to be verified. 12// 13//===----------------------------------------------------------------------===// 14 15#include "CPPTargetMachine.h" 16#include "llvm/CallingConv.h" 17#include "llvm/Constants.h" 18#include "llvm/DerivedTypes.h" 19#include "llvm/InlineAsm.h" 20#include "llvm/Instruction.h" 21#include "llvm/Instructions.h" 22#include "llvm/Module.h" 23#include "llvm/Pass.h" 24#include "llvm/PassManager.h" 25#include "llvm/TypeSymbolTable.h" 26#include "llvm/Target/TargetMachineRegistry.h" 27#include "llvm/ADT/StringExtras.h" 28#include "llvm/ADT/STLExtras.h" 29#include "llvm/ADT/SmallPtrSet.h" 30#include "llvm/Support/CommandLine.h" 31#include "llvm/Support/Streams.h" 32#include "llvm/Support/raw_ostream.h" 33#include "llvm/Config/config.h" 34#include <algorithm> 35#include <set> 36 37using namespace llvm; 38 39static cl::opt<std::string> 40FuncName("cppfname", cl::desc("Specify the name of the generated function"), 41 cl::value_desc("function name")); 42 43enum WhatToGenerate { 44 GenProgram, 45 GenModule, 46 GenContents, 47 GenFunction, 48 GenFunctions, 49 GenInline, 50 GenVariable, 51 GenType 52}; 53 54static cl::opt<WhatToGenerate> GenerationType("cppgen", cl::Optional, 55 cl::desc("Choose what kind of output to generate"), 56 cl::init(GenProgram), 57 cl::values( 58 clEnumValN(GenProgram, "program", "Generate a complete program"), 59 clEnumValN(GenModule, "module", "Generate a module definition"), 60 clEnumValN(GenContents, "contents", "Generate contents of a module"), 61 clEnumValN(GenFunction, "function", "Generate a function definition"), 62 clEnumValN(GenFunctions,"functions", "Generate all function definitions"), 63 clEnumValN(GenInline, "inline", "Generate an inline function"), 64 clEnumValN(GenVariable, "variable", "Generate a variable definition"), 65 clEnumValN(GenType, "type", "Generate a type definition"), 66 clEnumValEnd 67 ) 68); 69 70static cl::opt<std::string> NameToGenerate("cppfor", cl::Optional, 71 cl::desc("Specify the name of the thing to generate"), 72 cl::init("!bad!")); 73 74/// CppBackendTargetMachineModule - Note that this is used on hosts 75/// that cannot link in a library unless there are references into the 76/// library. In particular, it seems that it is not possible to get 77/// things to work on Win32 without this. Though it is unused, do not 78/// remove it. 79extern "C" int CppBackendTargetMachineModule; 80int CppBackendTargetMachineModule = 0; 81 82// Register the target. 83static RegisterTarget<CPPTargetMachine> X("cpp", "C++ backend"); 84 85namespace { 86 typedef std::vector<const Type*> TypeList; 87 typedef std::map<const Type*,std::string> TypeMap; 88 typedef std::map<const Value*,std::string> ValueMap; 89 typedef std::set<std::string> NameSet; 90 typedef std::set<const Type*> TypeSet; 91 typedef std::set<const Value*> ValueSet; 92 typedef std::map<const Value*,std::string> ForwardRefMap; 93 94 /// CppWriter - This class is the main chunk of code that converts an LLVM 95 /// module to a C++ translation unit. 96 class CppWriter : public ModulePass { 97 raw_ostream &Out; 98 const Module *TheModule; 99 uint64_t uniqueNum; 100 TypeMap TypeNames; 101 ValueMap ValueNames; 102 TypeMap UnresolvedTypes; 103 TypeList TypeStack; 104 NameSet UsedNames; 105 TypeSet DefinedTypes; 106 ValueSet DefinedValues; 107 ForwardRefMap ForwardRefs; 108 bool is_inline; 109 110 public: 111 static char ID; 112 explicit CppWriter(raw_ostream &o) : 113 ModulePass(&ID), Out(o), uniqueNum(0), is_inline(false) {} 114 115 virtual const char *getPassName() const { return "C++ backend"; } 116 117 bool runOnModule(Module &M); 118 119 void printProgram(const std::string& fname, const std::string& modName ); 120 void printModule(const std::string& fname, const std::string& modName ); 121 void printContents(const std::string& fname, const std::string& modName ); 122 void printFunction(const std::string& fname, const std::string& funcName ); 123 void printFunctions(); 124 void printInline(const std::string& fname, const std::string& funcName ); 125 void printVariable(const std::string& fname, const std::string& varName ); 126 void printType(const std::string& fname, const std::string& typeName ); 127 128 void error(const std::string& msg); 129 130 private: 131 void printLinkageType(GlobalValue::LinkageTypes LT); 132 void printVisibilityType(GlobalValue::VisibilityTypes VisTypes); 133 void printCallingConv(unsigned cc); 134 void printEscapedString(const std::string& str); 135 void printCFP(const ConstantFP* CFP); 136 137 std::string getCppName(const Type* val); 138 inline void printCppName(const Type* val); 139 140 std::string getCppName(const Value* val); 141 inline void printCppName(const Value* val); 142 143 void printAttributes(const AttrListPtr &PAL, const std::string &name); 144 bool printTypeInternal(const Type* Ty); 145 inline void printType(const Type* Ty); 146 void printTypes(const Module* M); 147 148 void printConstant(const Constant *CPV); 149 void printConstants(const Module* M); 150 151 void printVariableUses(const GlobalVariable *GV); 152 void printVariableHead(const GlobalVariable *GV); 153 void printVariableBody(const GlobalVariable *GV); 154 155 void printFunctionUses(const Function *F); 156 void printFunctionHead(const Function *F); 157 void printFunctionBody(const Function *F); 158 void printInstruction(const Instruction *I, const std::string& bbname); 159 std::string getOpName(Value*); 160 161 void printModuleBody(); 162 }; 163 164 static unsigned indent_level = 0; 165 inline raw_ostream& nl(raw_ostream& Out, int delta = 0) { 166 Out << "\n"; 167 if (delta >= 0 || indent_level >= unsigned(-delta)) 168 indent_level += delta; 169 for (unsigned i = 0; i < indent_level; ++i) 170 Out << " "; 171 return Out; 172 } 173 174 inline void in() { indent_level++; } 175 inline void out() { if (indent_level >0) indent_level--; } 176 177 inline void 178 sanitize(std::string& str) { 179 for (size_t i = 0; i < str.length(); ++i) 180 if (!isalnum(str[i]) && str[i] != '_') 181 str[i] = '_'; 182 } 183 184 inline std::string 185 getTypePrefix(const Type* Ty ) { 186 switch (Ty->getTypeID()) { 187 case Type::VoidTyID: return "void_"; 188 case Type::IntegerTyID: 189 return std::string("int") + utostr(cast<IntegerType>(Ty)->getBitWidth()) + 190 "_"; 191 case Type::FloatTyID: return "float_"; 192 case Type::DoubleTyID: return "double_"; 193 case Type::LabelTyID: return "label_"; 194 case Type::FunctionTyID: return "func_"; 195 case Type::StructTyID: return "struct_"; 196 case Type::ArrayTyID: return "array_"; 197 case Type::PointerTyID: return "ptr_"; 198 case Type::VectorTyID: return "packed_"; 199 case Type::OpaqueTyID: return "opaque_"; 200 default: return "other_"; 201 } 202 return "unknown_"; 203 } 204 205 // Looks up the type in the symbol table and returns a pointer to its name or 206 // a null pointer if it wasn't found. Note that this isn't the same as the 207 // Mode::getTypeName function which will return an empty string, not a null 208 // pointer if the name is not found. 209 inline const std::string* 210 findTypeName(const TypeSymbolTable& ST, const Type* Ty) { 211 TypeSymbolTable::const_iterator TI = ST.begin(); 212 TypeSymbolTable::const_iterator TE = ST.end(); 213 for (;TI != TE; ++TI) 214 if (TI->second == Ty) 215 return &(TI->first); 216 return 0; 217 } 218 219 void CppWriter::error(const std::string& msg) { 220 cerr << msg << "\n"; 221 exit(2); 222 } 223 224 // printCFP - Print a floating point constant .. very carefully :) 225 // This makes sure that conversion to/from floating yields the same binary 226 // result so that we don't lose precision. 227 void CppWriter::printCFP(const ConstantFP *CFP) { 228 bool ignored; 229 APFloat APF = APFloat(CFP->getValueAPF()); // copy 230 if (CFP->getType() == Type::FloatTy) 231 APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &ignored); 232 Out << "ConstantFP::get("; 233 Out << "APFloat("; 234#if HAVE_PRINTF_A 235 char Buffer[100]; 236 sprintf(Buffer, "%A", APF.convertToDouble()); 237 if ((!strncmp(Buffer, "0x", 2) || 238 !strncmp(Buffer, "-0x", 3) || 239 !strncmp(Buffer, "+0x", 3)) && 240 APF.bitwiseIsEqual(APFloat(atof(Buffer)))) { 241 if (CFP->getType() == Type::DoubleTy) 242 Out << "BitsToDouble(" << Buffer << ")"; 243 else 244 Out << "BitsToFloat((float)" << Buffer << ")"; 245 Out << ")"; 246 } else { 247#endif 248 std::string StrVal = ftostr(CFP->getValueAPF()); 249 250 while (StrVal[0] == ' ') 251 StrVal.erase(StrVal.begin()); 252 253 // Check to make sure that the stringized number is not some string like 254 // "Inf" or NaN. Check that the string matches the "[-+]?[0-9]" regex. 255 if (((StrVal[0] >= '0' && StrVal[0] <= '9') || 256 ((StrVal[0] == '-' || StrVal[0] == '+') && 257 (StrVal[1] >= '0' && StrVal[1] <= '9'))) && 258 (CFP->isExactlyValue(atof(StrVal.c_str())))) { 259 if (CFP->getType() == Type::DoubleTy) 260 Out << StrVal; 261 else 262 Out << StrVal << "f"; 263 } else if (CFP->getType() == Type::DoubleTy) 264 Out << "BitsToDouble(0x" 265 << utohexstr(CFP->getValueAPF().bitcastToAPInt().getZExtValue()) 266 << "ULL) /* " << StrVal << " */"; 267 else 268 Out << "BitsToFloat(0x" 269 << utohexstr((uint32_t)CFP->getValueAPF(). 270 bitcastToAPInt().getZExtValue()) 271 << "U) /* " << StrVal << " */"; 272 Out << ")"; 273#if HAVE_PRINTF_A 274 } 275#endif 276 Out << ")"; 277 } 278 279 void CppWriter::printCallingConv(unsigned cc){ 280 // Print the calling convention. 281 switch (cc) { 282 case CallingConv::C: Out << "CallingConv::C"; break; 283 case CallingConv::Fast: Out << "CallingConv::Fast"; break; 284 case CallingConv::Cold: Out << "CallingConv::Cold"; break; 285 case CallingConv::FirstTargetCC: Out << "CallingConv::FirstTargetCC"; break; 286 default: Out << cc; break; 287 } 288 } 289 290 void CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) { 291 switch (LT) { 292 case GlobalValue::InternalLinkage: 293 Out << "GlobalValue::InternalLinkage"; break; 294 case GlobalValue::PrivateLinkage: 295 Out << "GlobalValue::PrivateLinkage"; break; 296 case GlobalValue::AvailableExternallyLinkage: 297 Out << "GlobalValue::AvailableExternallyLinkage "; break; 298 case GlobalValue::LinkOnceAnyLinkage: 299 Out << "GlobalValue::LinkOnceAnyLinkage "; break; 300 case GlobalValue::LinkOnceODRLinkage: 301 Out << "GlobalValue::LinkOnceODRLinkage "; break; 302 case GlobalValue::WeakAnyLinkage: 303 Out << "GlobalValue::WeakAnyLinkage"; break; 304 case GlobalValue::WeakODRLinkage: 305 Out << "GlobalValue::WeakODRLinkage"; break; 306 case GlobalValue::AppendingLinkage: 307 Out << "GlobalValue::AppendingLinkage"; break; 308 case GlobalValue::ExternalLinkage: 309 Out << "GlobalValue::ExternalLinkage"; break; 310 case GlobalValue::DLLImportLinkage: 311 Out << "GlobalValue::DLLImportLinkage"; break; 312 case GlobalValue::DLLExportLinkage: 313 Out << "GlobalValue::DLLExportLinkage"; break; 314 case GlobalValue::ExternalWeakLinkage: 315 Out << "GlobalValue::ExternalWeakLinkage"; break; 316 case GlobalValue::GhostLinkage: 317 Out << "GlobalValue::GhostLinkage"; break; 318 case GlobalValue::CommonLinkage: 319 Out << "GlobalValue::CommonLinkage"; break; 320 } 321 } 322 323 void CppWriter::printVisibilityType(GlobalValue::VisibilityTypes VisType) { 324 switch (VisType) { 325 default: assert(0 && "Unknown GVar visibility"); 326 case GlobalValue::DefaultVisibility: 327 Out << "GlobalValue::DefaultVisibility"; 328 break; 329 case GlobalValue::HiddenVisibility: 330 Out << "GlobalValue::HiddenVisibility"; 331 break; 332 case GlobalValue::ProtectedVisibility: 333 Out << "GlobalValue::ProtectedVisibility"; 334 break; 335 } 336 } 337 338 // printEscapedString - Print each character of the specified string, escaping 339 // it if it is not printable or if it is an escape char. 340 void CppWriter::printEscapedString(const std::string &Str) { 341 for (unsigned i = 0, e = Str.size(); i != e; ++i) { 342 unsigned char C = Str[i]; 343 if (isprint(C) && C != '"' && C != '\\') { 344 Out << C; 345 } else { 346 Out << "\\x" 347 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A')) 348 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A')); 349 } 350 } 351 } 352 353 std::string CppWriter::getCppName(const Type* Ty) { 354 // First, handle the primitive types .. easy 355 if (Ty->isPrimitiveType() || Ty->isInteger()) { 356 switch (Ty->getTypeID()) { 357 case Type::VoidTyID: return "Type::VoidTy"; 358 case Type::IntegerTyID: { 359 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth(); 360 return "IntegerType::get(" + utostr(BitWidth) + ")"; 361 } 362 case Type::X86_FP80TyID: return "Type::X86_FP80Ty"; 363 case Type::FloatTyID: return "Type::FloatTy"; 364 case Type::DoubleTyID: return "Type::DoubleTy"; 365 case Type::LabelTyID: return "Type::LabelTy"; 366 default: 367 error("Invalid primitive type"); 368 break; 369 } 370 return "Type::VoidTy"; // shouldn't be returned, but make it sensible 371 } 372 373 // Now, see if we've seen the type before and return that 374 TypeMap::iterator I = TypeNames.find(Ty); 375 if (I != TypeNames.end()) 376 return I->second; 377 378 // Okay, let's build a new name for this type. Start with a prefix 379 const char* prefix = 0; 380 switch (Ty->getTypeID()) { 381 case Type::FunctionTyID: prefix = "FuncTy_"; break; 382 case Type::StructTyID: prefix = "StructTy_"; break; 383 case Type::ArrayTyID: prefix = "ArrayTy_"; break; 384 case Type::PointerTyID: prefix = "PointerTy_"; break; 385 case Type::OpaqueTyID: prefix = "OpaqueTy_"; break; 386 case Type::VectorTyID: prefix = "VectorTy_"; break; 387 default: prefix = "OtherTy_"; break; // prevent breakage 388 } 389 390 // See if the type has a name in the symboltable and build accordingly 391 const std::string* tName = findTypeName(TheModule->getTypeSymbolTable(), Ty); 392 std::string name; 393 if (tName) 394 name = std::string(prefix) + *tName; 395 else 396 name = std::string(prefix) + utostr(uniqueNum++); 397 sanitize(name); 398 399 // Save the name 400 return TypeNames[Ty] = name; 401 } 402 403 void CppWriter::printCppName(const Type* Ty) { 404 printEscapedString(getCppName(Ty)); 405 } 406 407 std::string CppWriter::getCppName(const Value* val) { 408 std::string name; 409 ValueMap::iterator I = ValueNames.find(val); 410 if (I != ValueNames.end() && I->first == val) 411 return I->second; 412 413 if (const GlobalVariable* GV = dyn_cast<GlobalVariable>(val)) { 414 name = std::string("gvar_") + 415 getTypePrefix(GV->getType()->getElementType()); 416 } else if (isa<Function>(val)) { 417 name = std::string("func_"); 418 } else if (const Constant* C = dyn_cast<Constant>(val)) { 419 name = std::string("const_") + getTypePrefix(C->getType()); 420 } else if (const Argument* Arg = dyn_cast<Argument>(val)) { 421 if (is_inline) { 422 unsigned argNum = std::distance(Arg->getParent()->arg_begin(), 423 Function::const_arg_iterator(Arg)) + 1; 424 name = std::string("arg_") + utostr(argNum); 425 NameSet::iterator NI = UsedNames.find(name); 426 if (NI != UsedNames.end()) 427 name += std::string("_") + utostr(uniqueNum++); 428 UsedNames.insert(name); 429 return ValueNames[val] = name; 430 } else { 431 name = getTypePrefix(val->getType()); 432 } 433 } else { 434 name = getTypePrefix(val->getType()); 435 } 436 name += (val->hasName() ? val->getName() : utostr(uniqueNum++)); 437 sanitize(name); 438 NameSet::iterator NI = UsedNames.find(name); 439 if (NI != UsedNames.end()) 440 name += std::string("_") + utostr(uniqueNum++); 441 UsedNames.insert(name); 442 return ValueNames[val] = name; 443 } 444 445 void CppWriter::printCppName(const Value* val) { 446 printEscapedString(getCppName(val)); 447 } 448 449 void CppWriter::printAttributes(const AttrListPtr &PAL, 450 const std::string &name) { 451 Out << "AttrListPtr " << name << "_PAL;"; 452 nl(Out); 453 if (!PAL.isEmpty()) { 454 Out << '{'; in(); nl(Out); 455 Out << "SmallVector<AttributeWithIndex, 4> Attrs;"; nl(Out); 456 Out << "AttributeWithIndex PAWI;"; nl(Out); 457 for (unsigned i = 0; i < PAL.getNumSlots(); ++i) { 458 unsigned index = PAL.getSlot(i).Index; 459 Attributes attrs = PAL.getSlot(i).Attrs; 460 Out << "PAWI.Index = " << index << "U; PAWI.Attrs = 0 "; 461#define HANDLE_ATTR(X) \ 462 if (attrs & Attribute::X) \ 463 Out << " | Attribute::" #X; \ 464 attrs &= ~Attribute::X; 465 466 HANDLE_ATTR(SExt); 467 HANDLE_ATTR(ZExt); 468 HANDLE_ATTR(NoReturn); 469 HANDLE_ATTR(InReg); 470 HANDLE_ATTR(StructRet); 471 HANDLE_ATTR(NoUnwind); 472 HANDLE_ATTR(NoAlias); 473 HANDLE_ATTR(ByVal); 474 HANDLE_ATTR(Nest); 475 HANDLE_ATTR(ReadNone); 476 HANDLE_ATTR(ReadOnly); 477 HANDLE_ATTR(NoInline); 478 HANDLE_ATTR(AlwaysInline); 479 HANDLE_ATTR(OptimizeForSize); 480 HANDLE_ATTR(StackProtect); 481 HANDLE_ATTR(StackProtectReq); 482 HANDLE_ATTR(NoCapture); 483#undef HANDLE_ATTR 484 assert(attrs == 0 && "Unhandled attribute!"); 485 Out << ";"; 486 nl(Out); 487 Out << "Attrs.push_back(PAWI);"; 488 nl(Out); 489 } 490 Out << name << "_PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());"; 491 nl(Out); 492 out(); nl(Out); 493 Out << '}'; nl(Out); 494 } 495 } 496 497 bool CppWriter::printTypeInternal(const Type* Ty) { 498 // We don't print definitions for primitive types 499 if (Ty->isPrimitiveType() || Ty->isInteger()) 500 return false; 501 502 // If we already defined this type, we don't need to define it again. 503 if (DefinedTypes.find(Ty) != DefinedTypes.end()) 504 return false; 505 506 // Everything below needs the name for the type so get it now. 507 std::string typeName(getCppName(Ty)); 508 509 // Search the type stack for recursion. If we find it, then generate this 510 // as an OpaqueType, but make sure not to do this multiple times because 511 // the type could appear in multiple places on the stack. Once the opaque 512 // definition is issued, it must not be re-issued. Consequently we have to 513 // check the UnresolvedTypes list as well. 514 TypeList::const_iterator TI = std::find(TypeStack.begin(), TypeStack.end(), 515 Ty); 516 if (TI != TypeStack.end()) { 517 TypeMap::const_iterator I = UnresolvedTypes.find(Ty); 518 if (I == UnresolvedTypes.end()) { 519 Out << "PATypeHolder " << typeName << "_fwd = OpaqueType::get();"; 520 nl(Out); 521 UnresolvedTypes[Ty] = typeName; 522 } 523 return true; 524 } 525 526 // We're going to print a derived type which, by definition, contains other 527 // types. So, push this one we're printing onto the type stack to assist with 528 // recursive definitions. 529 TypeStack.push_back(Ty); 530 531 // Print the type definition 532 switch (Ty->getTypeID()) { 533 case Type::FunctionTyID: { 534 const FunctionType* FT = cast<FunctionType>(Ty); 535 Out << "std::vector<const Type*>" << typeName << "_args;"; 536 nl(Out); 537 FunctionType::param_iterator PI = FT->param_begin(); 538 FunctionType::param_iterator PE = FT->param_end(); 539 for (; PI != PE; ++PI) { 540 const Type* argTy = static_cast<const Type*>(*PI); 541 bool isForward = printTypeInternal(argTy); 542 std::string argName(getCppName(argTy)); 543 Out << typeName << "_args.push_back(" << argName; 544 if (isForward) 545 Out << "_fwd"; 546 Out << ");"; 547 nl(Out); 548 } 549 bool isForward = printTypeInternal(FT->getReturnType()); 550 std::string retTypeName(getCppName(FT->getReturnType())); 551 Out << "FunctionType* " << typeName << " = FunctionType::get("; 552 in(); nl(Out) << "/*Result=*/" << retTypeName; 553 if (isForward) 554 Out << "_fwd"; 555 Out << ","; 556 nl(Out) << "/*Params=*/" << typeName << "_args,"; 557 nl(Out) << "/*isVarArg=*/" << (FT->isVarArg() ? "true" : "false") << ");"; 558 out(); 559 nl(Out); 560 break; 561 } 562 case Type::StructTyID: { 563 const StructType* ST = cast<StructType>(Ty); 564 Out << "std::vector<const Type*>" << typeName << "_fields;"; 565 nl(Out); 566 StructType::element_iterator EI = ST->element_begin(); 567 StructType::element_iterator EE = ST->element_end(); 568 for (; EI != EE; ++EI) { 569 const Type* fieldTy = static_cast<const Type*>(*EI); 570 bool isForward = printTypeInternal(fieldTy); 571 std::string fieldName(getCppName(fieldTy)); 572 Out << typeName << "_fields.push_back(" << fieldName; 573 if (isForward) 574 Out << "_fwd"; 575 Out << ");"; 576 nl(Out); 577 } 578 Out << "StructType* " << typeName << " = StructType::get(" 579 << typeName << "_fields, /*isPacked=*/" 580 << (ST->isPacked() ? "true" : "false") << ");"; 581 nl(Out); 582 break; 583 } 584 case Type::ArrayTyID: { 585 const ArrayType* AT = cast<ArrayType>(Ty); 586 const Type* ET = AT->getElementType(); 587 bool isForward = printTypeInternal(ET); 588 std::string elemName(getCppName(ET)); 589 Out << "ArrayType* " << typeName << " = ArrayType::get(" 590 << elemName << (isForward ? "_fwd" : "") 591 << ", " << utostr(AT->getNumElements()) << ");"; 592 nl(Out); 593 break; 594 } 595 case Type::PointerTyID: { 596 const PointerType* PT = cast<PointerType>(Ty); 597 const Type* ET = PT->getElementType(); 598 bool isForward = printTypeInternal(ET); 599 std::string elemName(getCppName(ET)); 600 Out << "PointerType* " << typeName << " = PointerType::get(" 601 << elemName << (isForward ? "_fwd" : "") 602 << ", " << utostr(PT->getAddressSpace()) << ");"; 603 nl(Out); 604 break; 605 } 606 case Type::VectorTyID: { 607 const VectorType* PT = cast<VectorType>(Ty); 608 const Type* ET = PT->getElementType(); 609 bool isForward = printTypeInternal(ET); 610 std::string elemName(getCppName(ET)); 611 Out << "VectorType* " << typeName << " = VectorType::get(" 612 << elemName << (isForward ? "_fwd" : "") 613 << ", " << utostr(PT->getNumElements()) << ");"; 614 nl(Out); 615 break; 616 } 617 case Type::OpaqueTyID: { 618 Out << "OpaqueType* " << typeName << " = OpaqueType::get();"; 619 nl(Out); 620 break; 621 } 622 default: 623 error("Invalid TypeID"); 624 } 625 626 // If the type had a name, make sure we recreate it. 627 const std::string* progTypeName = 628 findTypeName(TheModule->getTypeSymbolTable(),Ty); 629 if (progTypeName) { 630 Out << "mod->addTypeName(\"" << *progTypeName << "\", " 631 << typeName << ");"; 632 nl(Out); 633 } 634 635 // Pop us off the type stack 636 TypeStack.pop_back(); 637 638 // Indicate that this type is now defined. 639 DefinedTypes.insert(Ty); 640 641 // Early resolve as many unresolved types as possible. Search the unresolved 642 // types map for the type we just printed. Now that its definition is complete 643 // we can resolve any previous references to it. This prevents a cascade of 644 // unresolved types. 645 TypeMap::iterator I = UnresolvedTypes.find(Ty); 646 if (I != UnresolvedTypes.end()) { 647 Out << "cast<OpaqueType>(" << I->second 648 << "_fwd.get())->refineAbstractTypeTo(" << I->second << ");"; 649 nl(Out); 650 Out << I->second << " = cast<"; 651 switch (Ty->getTypeID()) { 652 case Type::FunctionTyID: Out << "FunctionType"; break; 653 case Type::ArrayTyID: Out << "ArrayType"; break; 654 case Type::StructTyID: Out << "StructType"; break; 655 case Type::VectorTyID: Out << "VectorType"; break; 656 case Type::PointerTyID: Out << "PointerType"; break; 657 case Type::OpaqueTyID: Out << "OpaqueType"; break; 658 default: Out << "NoSuchDerivedType"; break; 659 } 660 Out << ">(" << I->second << "_fwd.get());"; 661 nl(Out); nl(Out); 662 UnresolvedTypes.erase(I); 663 } 664 665 // Finally, separate the type definition from other with a newline. 666 nl(Out); 667 668 // We weren't a recursive type 669 return false; 670 } 671 672 // Prints a type definition. Returns true if it could not resolve all the 673 // types in the definition but had to use a forward reference. 674 void CppWriter::printType(const Type* Ty) { 675 assert(TypeStack.empty()); 676 TypeStack.clear(); 677 printTypeInternal(Ty); 678 assert(TypeStack.empty()); 679 } 680 681 void CppWriter::printTypes(const Module* M) { 682 // Walk the symbol table and print out all its types 683 const TypeSymbolTable& symtab = M->getTypeSymbolTable(); 684 for (TypeSymbolTable::const_iterator TI = symtab.begin(), TE = symtab.end(); 685 TI != TE; ++TI) { 686 687 // For primitive types and types already defined, just add a name 688 TypeMap::const_iterator TNI = TypeNames.find(TI->second); 689 if (TI->second->isInteger() || TI->second->isPrimitiveType() || 690 TNI != TypeNames.end()) { 691 Out << "mod->addTypeName(\""; 692 printEscapedString(TI->first); 693 Out << "\", " << getCppName(TI->second) << ");"; 694 nl(Out); 695 // For everything else, define the type 696 } else { 697 printType(TI->second); 698 } 699 } 700 701 // Add all of the global variables to the value table... 702 for (Module::const_global_iterator I = TheModule->global_begin(), 703 E = TheModule->global_end(); I != E; ++I) { 704 if (I->hasInitializer()) 705 printType(I->getInitializer()->getType()); 706 printType(I->getType()); 707 } 708 709 // Add all the functions to the table 710 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end(); 711 FI != FE; ++FI) { 712 printType(FI->getReturnType()); 713 printType(FI->getFunctionType()); 714 // Add all the function arguments 715 for (Function::const_arg_iterator AI = FI->arg_begin(), 716 AE = FI->arg_end(); AI != AE; ++AI) { 717 printType(AI->getType()); 718 } 719 720 // Add all of the basic blocks and instructions 721 for (Function::const_iterator BB = FI->begin(), 722 E = FI->end(); BB != E; ++BB) { 723 printType(BB->getType()); 724 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E; 725 ++I) { 726 printType(I->getType()); 727 for (unsigned i = 0; i < I->getNumOperands(); ++i) 728 printType(I->getOperand(i)->getType()); 729 } 730 } 731 } 732 } 733 734 735 // printConstant - Print out a constant pool entry... 736 void CppWriter::printConstant(const Constant *CV) { 737 // First, if the constant is actually a GlobalValue (variable or function) 738 // or its already in the constant list then we've printed it already and we 739 // can just return. 740 if (isa<GlobalValue>(CV) || ValueNames.find(CV) != ValueNames.end()) 741 return; 742 743 std::string constName(getCppName(CV)); 744 std::string typeName(getCppName(CV->getType())); 745 746 if (isa<GlobalValue>(CV)) { 747 // Skip variables and functions, we emit them elsewhere 748 return; 749 } 750 751 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) { 752 std::string constValue = CI->getValue().toString(10, true); 753 Out << "ConstantInt* " << constName << " = ConstantInt::get(APInt(" 754 << cast<IntegerType>(CI->getType())->getBitWidth() << ", \"" 755 << constValue << "\", " << constValue.length() << ", 10));"; 756 } else if (isa<ConstantAggregateZero>(CV)) { 757 Out << "ConstantAggregateZero* " << constName 758 << " = ConstantAggregateZero::get(" << typeName << ");"; 759 } else if (isa<ConstantPointerNull>(CV)) { 760 Out << "ConstantPointerNull* " << constName 761 << " = ConstantPointerNull::get(" << typeName << ");"; 762 } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) { 763 Out << "ConstantFP* " << constName << " = "; 764 printCFP(CFP); 765 Out << ";"; 766 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) { 767 if (CA->isString() && CA->getType()->getElementType() == Type::Int8Ty) { 768 Out << "Constant* " << constName << " = ConstantArray::get(\""; 769 std::string tmp = CA->getAsString(); 770 bool nullTerminate = false; 771 if (tmp[tmp.length()-1] == 0) { 772 tmp.erase(tmp.length()-1); 773 nullTerminate = true; 774 } 775 printEscapedString(tmp); 776 // Determine if we want null termination or not. 777 if (nullTerminate) 778 Out << "\", true"; // Indicate that the null terminator should be 779 // added. 780 else 781 Out << "\", false";// No null terminator 782 Out << ");"; 783 } else { 784 Out << "std::vector<Constant*> " << constName << "_elems;"; 785 nl(Out); 786 unsigned N = CA->getNumOperands(); 787 for (unsigned i = 0; i < N; ++i) { 788 printConstant(CA->getOperand(i)); // recurse to print operands 789 Out << constName << "_elems.push_back(" 790 << getCppName(CA->getOperand(i)) << ");"; 791 nl(Out); 792 } 793 Out << "Constant* " << constName << " = ConstantArray::get(" 794 << typeName << ", " << constName << "_elems);"; 795 } 796 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) { 797 Out << "std::vector<Constant*> " << constName << "_fields;"; 798 nl(Out); 799 unsigned N = CS->getNumOperands(); 800 for (unsigned i = 0; i < N; i++) { 801 printConstant(CS->getOperand(i)); 802 Out << constName << "_fields.push_back(" 803 << getCppName(CS->getOperand(i)) << ");"; 804 nl(Out); 805 } 806 Out << "Constant* " << constName << " = ConstantStruct::get(" 807 << typeName << ", " << constName << "_fields);"; 808 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) { 809 Out << "std::vector<Constant*> " << constName << "_elems;"; 810 nl(Out); 811 unsigned N = CP->getNumOperands(); 812 for (unsigned i = 0; i < N; ++i) { 813 printConstant(CP->getOperand(i)); 814 Out << constName << "_elems.push_back(" 815 << getCppName(CP->getOperand(i)) << ");"; 816 nl(Out); 817 } 818 Out << "Constant* " << constName << " = ConstantVector::get(" 819 << typeName << ", " << constName << "_elems);"; 820 } else if (isa<UndefValue>(CV)) { 821 Out << "UndefValue* " << constName << " = UndefValue::get(" 822 << typeName << ");"; 823 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) { 824 if (CE->getOpcode() == Instruction::GetElementPtr) { 825 Out << "std::vector<Constant*> " << constName << "_indices;"; 826 nl(Out); 827 printConstant(CE->getOperand(0)); 828 for (unsigned i = 1; i < CE->getNumOperands(); ++i ) { 829 printConstant(CE->getOperand(i)); 830 Out << constName << "_indices.push_back(" 831 << getCppName(CE->getOperand(i)) << ");"; 832 nl(Out); 833 } 834 Out << "Constant* " << constName 835 << " = ConstantExpr::getGetElementPtr(" 836 << getCppName(CE->getOperand(0)) << ", " 837 << "&" << constName << "_indices[0], " 838 << constName << "_indices.size()" 839 << " );"; 840 } else if (CE->isCast()) { 841 printConstant(CE->getOperand(0)); 842 Out << "Constant* " << constName << " = ConstantExpr::getCast("; 843 switch (CE->getOpcode()) { 844 default: assert(0 && "Invalid cast opcode"); 845 case Instruction::Trunc: Out << "Instruction::Trunc"; break; 846 case Instruction::ZExt: Out << "Instruction::ZExt"; break; 847 case Instruction::SExt: Out << "Instruction::SExt"; break; 848 case Instruction::FPTrunc: Out << "Instruction::FPTrunc"; break; 849 case Instruction::FPExt: Out << "Instruction::FPExt"; break; 850 case Instruction::FPToUI: Out << "Instruction::FPToUI"; break; 851 case Instruction::FPToSI: Out << "Instruction::FPToSI"; break; 852 case Instruction::UIToFP: Out << "Instruction::UIToFP"; break; 853 case Instruction::SIToFP: Out << "Instruction::SIToFP"; break; 854 case Instruction::PtrToInt: Out << "Instruction::PtrToInt"; break; 855 case Instruction::IntToPtr: Out << "Instruction::IntToPtr"; break; 856 case Instruction::BitCast: Out << "Instruction::BitCast"; break; 857 } 858 Out << ", " << getCppName(CE->getOperand(0)) << ", " 859 << getCppName(CE->getType()) << ");"; 860 } else { 861 unsigned N = CE->getNumOperands(); 862 for (unsigned i = 0; i < N; ++i ) { 863 printConstant(CE->getOperand(i)); 864 } 865 Out << "Constant* " << constName << " = ConstantExpr::"; 866 switch (CE->getOpcode()) { 867 case Instruction::Add: Out << "getAdd("; break; 868 case Instruction::Sub: Out << "getSub("; break; 869 case Instruction::Mul: Out << "getMul("; break; 870 case Instruction::UDiv: Out << "getUDiv("; break; 871 case Instruction::SDiv: Out << "getSDiv("; break; 872 case Instruction::FDiv: Out << "getFDiv("; break; 873 case Instruction::URem: Out << "getURem("; break; 874 case Instruction::SRem: Out << "getSRem("; break; 875 case Instruction::FRem: Out << "getFRem("; break; 876 case Instruction::And: Out << "getAnd("; break; 877 case Instruction::Or: Out << "getOr("; break; 878 case Instruction::Xor: Out << "getXor("; break; 879 case Instruction::ICmp: 880 Out << "getICmp(ICmpInst::ICMP_"; 881 switch (CE->getPredicate()) { 882 case ICmpInst::ICMP_EQ: Out << "EQ"; break; 883 case ICmpInst::ICMP_NE: Out << "NE"; break; 884 case ICmpInst::ICMP_SLT: Out << "SLT"; break; 885 case ICmpInst::ICMP_ULT: Out << "ULT"; break; 886 case ICmpInst::ICMP_SGT: Out << "SGT"; break; 887 case ICmpInst::ICMP_UGT: Out << "UGT"; break; 888 case ICmpInst::ICMP_SLE: Out << "SLE"; break; 889 case ICmpInst::ICMP_ULE: Out << "ULE"; break; 890 case ICmpInst::ICMP_SGE: Out << "SGE"; break; 891 case ICmpInst::ICMP_UGE: Out << "UGE"; break; 892 default: error("Invalid ICmp Predicate"); 893 } 894 break; 895 case Instruction::FCmp: 896 Out << "getFCmp(FCmpInst::FCMP_"; 897 switch (CE->getPredicate()) { 898 case FCmpInst::FCMP_FALSE: Out << "FALSE"; break; 899 case FCmpInst::FCMP_ORD: Out << "ORD"; break; 900 case FCmpInst::FCMP_UNO: Out << "UNO"; break; 901 case FCmpInst::FCMP_OEQ: Out << "OEQ"; break; 902 case FCmpInst::FCMP_UEQ: Out << "UEQ"; break; 903 case FCmpInst::FCMP_ONE: Out << "ONE"; break; 904 case FCmpInst::FCMP_UNE: Out << "UNE"; break; 905 case FCmpInst::FCMP_OLT: Out << "OLT"; break; 906 case FCmpInst::FCMP_ULT: Out << "ULT"; break; 907 case FCmpInst::FCMP_OGT: Out << "OGT"; break; 908 case FCmpInst::FCMP_UGT: Out << "UGT"; break; 909 case FCmpInst::FCMP_OLE: Out << "OLE"; break; 910 case FCmpInst::FCMP_ULE: Out << "ULE"; break; 911 case FCmpInst::FCMP_OGE: Out << "OGE"; break; 912 case FCmpInst::FCMP_UGE: Out << "UGE"; break; 913 case FCmpInst::FCMP_TRUE: Out << "TRUE"; break; 914 default: error("Invalid FCmp Predicate"); 915 } 916 break; 917 case Instruction::Shl: Out << "getShl("; break; 918 case Instruction::LShr: Out << "getLShr("; break; 919 case Instruction::AShr: Out << "getAShr("; break; 920 case Instruction::Select: Out << "getSelect("; break; 921 case Instruction::ExtractElement: Out << "getExtractElement("; break; 922 case Instruction::InsertElement: Out << "getInsertElement("; break; 923 case Instruction::ShuffleVector: Out << "getShuffleVector("; break; 924 default: 925 error("Invalid constant expression"); 926 break; 927 } 928 Out << getCppName(CE->getOperand(0)); 929 for (unsigned i = 1; i < CE->getNumOperands(); ++i) 930 Out << ", " << getCppName(CE->getOperand(i)); 931 Out << ");"; 932 } 933 } else { 934 error("Bad Constant"); 935 Out << "Constant* " << constName << " = 0; "; 936 } 937 nl(Out); 938 } 939 940 void CppWriter::printConstants(const Module* M) { 941 // Traverse all the global variables looking for constant initializers 942 for (Module::const_global_iterator I = TheModule->global_begin(), 943 E = TheModule->global_end(); I != E; ++I) 944 if (I->hasInitializer()) 945 printConstant(I->getInitializer()); 946 947 // Traverse the LLVM functions looking for constants 948 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end(); 949 FI != FE; ++FI) { 950 // Add all of the basic blocks and instructions 951 for (Function::const_iterator BB = FI->begin(), 952 E = FI->end(); BB != E; ++BB) { 953 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E; 954 ++I) { 955 for (unsigned i = 0; i < I->getNumOperands(); ++i) { 956 if (Constant* C = dyn_cast<Constant>(I->getOperand(i))) { 957 printConstant(C); 958 } 959 } 960 } 961 } 962 } 963 } 964 965 void CppWriter::printVariableUses(const GlobalVariable *GV) { 966 nl(Out) << "// Type Definitions"; 967 nl(Out); 968 printType(GV->getType()); 969 if (GV->hasInitializer()) { 970 Constant* Init = GV->getInitializer(); 971 printType(Init->getType()); 972 if (Function* F = dyn_cast<Function>(Init)) { 973 nl(Out)<< "/ Function Declarations"; nl(Out); 974 printFunctionHead(F); 975 } else if (GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) { 976 nl(Out) << "// Global Variable Declarations"; nl(Out); 977 printVariableHead(gv); 978 } else { 979 nl(Out) << "// Constant Definitions"; nl(Out); 980 printConstant(gv); 981 } 982 if (GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) { 983 nl(Out) << "// Global Variable Definitions"; nl(Out); 984 printVariableBody(gv); 985 } 986 } 987 } 988 989 void CppWriter::printVariableHead(const GlobalVariable *GV) { 990 nl(Out) << "GlobalVariable* " << getCppName(GV); 991 if (is_inline) { 992 Out << " = mod->getGlobalVariable("; 993 printEscapedString(GV->getName()); 994 Out << ", " << getCppName(GV->getType()->getElementType()) << ",true)"; 995 nl(Out) << "if (!" << getCppName(GV) << ") {"; 996 in(); nl(Out) << getCppName(GV); 997 } 998 Out << " = new GlobalVariable("; 999 nl(Out) << "/*Type=*/"; 1000 printCppName(GV->getType()->getElementType()); 1001 Out << ","; 1002 nl(Out) << "/*isConstant=*/" << (GV->isConstant()?"true":"false"); 1003 Out << ","; 1004 nl(Out) << "/*Linkage=*/"; 1005 printLinkageType(GV->getLinkage()); 1006 Out << ","; 1007 nl(Out) << "/*Initializer=*/0, "; 1008 if (GV->hasInitializer()) { 1009 Out << "// has initializer, specified below"; 1010 } 1011 nl(Out) << "/*Name=*/\""; 1012 printEscapedString(GV->getName()); 1013 Out << "\","; 1014 nl(Out) << "mod);"; 1015 nl(Out); 1016 1017 if (GV->hasSection()) { 1018 printCppName(GV); 1019 Out << "->setSection(\""; 1020 printEscapedString(GV->getSection()); 1021 Out << "\");"; 1022 nl(Out); 1023 } 1024 if (GV->getAlignment()) { 1025 printCppName(GV); 1026 Out << "->setAlignment(" << utostr(GV->getAlignment()) << ");"; 1027 nl(Out); 1028 } 1029 if (GV->getVisibility() != GlobalValue::DefaultVisibility) { 1030 printCppName(GV); 1031 Out << "->setVisibility("; 1032 printVisibilityType(GV->getVisibility()); 1033 Out << ");"; 1034 nl(Out); 1035 } 1036 if (is_inline) { 1037 out(); Out << "}"; nl(Out); 1038 } 1039 } 1040 1041 void CppWriter::printVariableBody(const GlobalVariable *GV) { 1042 if (GV->hasInitializer()) { 1043 printCppName(GV); 1044 Out << "->setInitializer("; 1045 Out << getCppName(GV->getInitializer()) << ");"; 1046 nl(Out); 1047 } 1048 } 1049 1050 std::string CppWriter::getOpName(Value* V) { 1051 if (!isa<Instruction>(V) || DefinedValues.find(V) != DefinedValues.end()) 1052 return getCppName(V); 1053 1054 // See if its alread in the map of forward references, if so just return the 1055 // name we already set up for it 1056 ForwardRefMap::const_iterator I = ForwardRefs.find(V); 1057 if (I != ForwardRefs.end()) 1058 return I->second; 1059 1060 // This is a new forward reference. Generate a unique name for it 1061 std::string result(std::string("fwdref_") + utostr(uniqueNum++)); 1062 1063 // Yes, this is a hack. An Argument is the smallest instantiable value that 1064 // we can make as a placeholder for the real value. We'll replace these 1065 // Argument instances later. 1066 Out << "Argument* " << result << " = new Argument(" 1067 << getCppName(V->getType()) << ");"; 1068 nl(Out); 1069 ForwardRefs[V] = result; 1070 return result; 1071 } 1072 1073 // printInstruction - This member is called for each Instruction in a function. 1074 void CppWriter::printInstruction(const Instruction *I, 1075 const std::string& bbname) { 1076 std::string iName(getCppName(I)); 1077 1078 // Before we emit this instruction, we need to take care of generating any 1079 // forward references. So, we get the names of all the operands in advance 1080 std::string* opNames = new std::string[I->getNumOperands()]; 1081 for (unsigned i = 0; i < I->getNumOperands(); i++) { 1082 opNames[i] = getOpName(I->getOperand(i)); 1083 } 1084 1085 switch (I->getOpcode()) { 1086 default: 1087 error("Invalid instruction"); 1088 break; 1089 1090 case Instruction::Ret: { 1091 const ReturnInst* ret = cast<ReturnInst>(I); 1092 Out << "ReturnInst::Create(" 1093 << (ret->getReturnValue() ? opNames[0] + ", " : "") << bbname << ");"; 1094 break; 1095 } 1096 case Instruction::Br: { 1097 const BranchInst* br = cast<BranchInst>(I); 1098 Out << "BranchInst::Create(" ; 1099 if (br->getNumOperands() == 3 ) { 1100 Out << opNames[2] << ", " 1101 << opNames[1] << ", " 1102 << opNames[0] << ", "; 1103 1104 } else if (br->getNumOperands() == 1) { 1105 Out << opNames[0] << ", "; 1106 } else { 1107 error("Branch with 2 operands?"); 1108 } 1109 Out << bbname << ");"; 1110 break; 1111 } 1112 case Instruction::Switch: { 1113 const SwitchInst* sw = cast<SwitchInst>(I); 1114 Out << "SwitchInst* " << iName << " = SwitchInst::Create(" 1115 << opNames[0] << ", " 1116 << opNames[1] << ", " 1117 << sw->getNumCases() << ", " << bbname << ");"; 1118 nl(Out); 1119 for (unsigned i = 2; i < sw->getNumOperands(); i += 2 ) { 1120 Out << iName << "->addCase(" 1121 << opNames[i] << ", " 1122 << opNames[i+1] << ");"; 1123 nl(Out); 1124 } 1125 break; 1126 } 1127 case Instruction::Invoke: { 1128 const InvokeInst* inv = cast<InvokeInst>(I); 1129 Out << "std::vector<Value*> " << iName << "_params;"; 1130 nl(Out); 1131 for (unsigned i = 3; i < inv->getNumOperands(); ++i) { 1132 Out << iName << "_params.push_back(" 1133 << opNames[i] << ");"; 1134 nl(Out); 1135 } 1136 Out << "InvokeInst *" << iName << " = InvokeInst::Create(" 1137 << opNames[0] << ", " 1138 << opNames[1] << ", " 1139 << opNames[2] << ", " 1140 << iName << "_params.begin(), " << iName << "_params.end(), \""; 1141 printEscapedString(inv->getName()); 1142 Out << "\", " << bbname << ");"; 1143 nl(Out) << iName << "->setCallingConv("; 1144 printCallingConv(inv->getCallingConv()); 1145 Out << ");"; 1146 printAttributes(inv->getAttributes(), iName); 1147 Out << iName << "->setAttributes(" << iName << "_PAL);"; 1148 nl(Out); 1149 break; 1150 } 1151 case Instruction::Unwind: { 1152 Out << "new UnwindInst(" 1153 << bbname << ");"; 1154 break; 1155 } 1156 case Instruction::Unreachable:{ 1157 Out << "new UnreachableInst(" 1158 << bbname << ");"; 1159 break; 1160 } 1161 case Instruction::Add: 1162 case Instruction::Sub: 1163 case Instruction::Mul: 1164 case Instruction::UDiv: 1165 case Instruction::SDiv: 1166 case Instruction::FDiv: 1167 case Instruction::URem: 1168 case Instruction::SRem: 1169 case Instruction::FRem: 1170 case Instruction::And: 1171 case Instruction::Or: 1172 case Instruction::Xor: 1173 case Instruction::Shl: 1174 case Instruction::LShr: 1175 case Instruction::AShr:{ 1176 Out << "BinaryOperator* " << iName << " = BinaryOperator::Create("; 1177 switch (I->getOpcode()) { 1178 case Instruction::Add: Out << "Instruction::Add"; break; 1179 case Instruction::Sub: Out << "Instruction::Sub"; break; 1180 case Instruction::Mul: Out << "Instruction::Mul"; break; 1181 case Instruction::UDiv:Out << "Instruction::UDiv"; break; 1182 case Instruction::SDiv:Out << "Instruction::SDiv"; break; 1183 case Instruction::FDiv:Out << "Instruction::FDiv"; break; 1184 case Instruction::URem:Out << "Instruction::URem"; break; 1185 case Instruction::SRem:Out << "Instruction::SRem"; break; 1186 case Instruction::FRem:Out << "Instruction::FRem"; break; 1187 case Instruction::And: Out << "Instruction::And"; break; 1188 case Instruction::Or: Out << "Instruction::Or"; break; 1189 case Instruction::Xor: Out << "Instruction::Xor"; break; 1190 case Instruction::Shl: Out << "Instruction::Shl"; break; 1191 case Instruction::LShr:Out << "Instruction::LShr"; break; 1192 case Instruction::AShr:Out << "Instruction::AShr"; break; 1193 default: Out << "Instruction::BadOpCode"; break; 1194 } 1195 Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; 1196 printEscapedString(I->getName()); 1197 Out << "\", " << bbname << ");"; 1198 break; 1199 } 1200 case Instruction::FCmp: { 1201 Out << "FCmpInst* " << iName << " = new FCmpInst("; 1202 switch (cast<FCmpInst>(I)->getPredicate()) { 1203 case FCmpInst::FCMP_FALSE: Out << "FCmpInst::FCMP_FALSE"; break; 1204 case FCmpInst::FCMP_OEQ : Out << "FCmpInst::FCMP_OEQ"; break; 1205 case FCmpInst::FCMP_OGT : Out << "FCmpInst::FCMP_OGT"; break; 1206 case FCmpInst::FCMP_OGE : Out << "FCmpInst::FCMP_OGE"; break; 1207 case FCmpInst::FCMP_OLT : Out << "FCmpInst::FCMP_OLT"; break; 1208 case FCmpInst::FCMP_OLE : Out << "FCmpInst::FCMP_OLE"; break; 1209 case FCmpInst::FCMP_ONE : Out << "FCmpInst::FCMP_ONE"; break; 1210 case FCmpInst::FCMP_ORD : Out << "FCmpInst::FCMP_ORD"; break; 1211 case FCmpInst::FCMP_UNO : Out << "FCmpInst::FCMP_UNO"; break; 1212 case FCmpInst::FCMP_UEQ : Out << "FCmpInst::FCMP_UEQ"; break; 1213 case FCmpInst::FCMP_UGT : Out << "FCmpInst::FCMP_UGT"; break; 1214 case FCmpInst::FCMP_UGE : Out << "FCmpInst::FCMP_UGE"; break; 1215 case FCmpInst::FCMP_ULT : Out << "FCmpInst::FCMP_ULT"; break; 1216 case FCmpInst::FCMP_ULE : Out << "FCmpInst::FCMP_ULE"; break; 1217 case FCmpInst::FCMP_UNE : Out << "FCmpInst::FCMP_UNE"; break; 1218 case FCmpInst::FCMP_TRUE : Out << "FCmpInst::FCMP_TRUE"; break; 1219 default: Out << "FCmpInst::BAD_ICMP_PREDICATE"; break; 1220 } 1221 Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; 1222 printEscapedString(I->getName()); 1223 Out << "\", " << bbname << ");"; 1224 break; 1225 } 1226 case Instruction::ICmp: { 1227 Out << "ICmpInst* " << iName << " = new ICmpInst("; 1228 switch (cast<ICmpInst>(I)->getPredicate()) { 1229 case ICmpInst::ICMP_EQ: Out << "ICmpInst::ICMP_EQ"; break; 1230 case ICmpInst::ICMP_NE: Out << "ICmpInst::ICMP_NE"; break; 1231 case ICmpInst::ICMP_ULE: Out << "ICmpInst::ICMP_ULE"; break; 1232 case ICmpInst::ICMP_SLE: Out << "ICmpInst::ICMP_SLE"; break; 1233 case ICmpInst::ICMP_UGE: Out << "ICmpInst::ICMP_UGE"; break; 1234 case ICmpInst::ICMP_SGE: Out << "ICmpInst::ICMP_SGE"; break; 1235 case ICmpInst::ICMP_ULT: Out << "ICmpInst::ICMP_ULT"; break; 1236 case ICmpInst::ICMP_SLT: Out << "ICmpInst::ICMP_SLT"; break; 1237 case ICmpInst::ICMP_UGT: Out << "ICmpInst::ICMP_UGT"; break; 1238 case ICmpInst::ICMP_SGT: Out << "ICmpInst::ICMP_SGT"; break; 1239 default: Out << "ICmpInst::BAD_ICMP_PREDICATE"; break; 1240 } 1241 Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; 1242 printEscapedString(I->getName()); 1243 Out << "\", " << bbname << ");"; 1244 break; 1245 } 1246 case Instruction::Malloc: { 1247 const MallocInst* mallocI = cast<MallocInst>(I); 1248 Out << "MallocInst* " << iName << " = new MallocInst(" 1249 << getCppName(mallocI->getAllocatedType()) << ", "; 1250 if (mallocI->isArrayAllocation()) 1251 Out << opNames[0] << ", " ; 1252 Out << "\""; 1253 printEscapedString(mallocI->getName()); 1254 Out << "\", " << bbname << ");"; 1255 if (mallocI->getAlignment()) 1256 nl(Out) << iName << "->setAlignment(" 1257 << mallocI->getAlignment() << ");"; 1258 break; 1259 } 1260 case Instruction::Free: { 1261 Out << "FreeInst* " << iName << " = new FreeInst(" 1262 << getCppName(I->getOperand(0)) << ", " << bbname << ");"; 1263 break; 1264 } 1265 case Instruction::Alloca: { 1266 const AllocaInst* allocaI = cast<AllocaInst>(I); 1267 Out << "AllocaInst* " << iName << " = new AllocaInst(" 1268 << getCppName(allocaI->getAllocatedType()) << ", "; 1269 if (allocaI->isArrayAllocation()) 1270 Out << opNames[0] << ", "; 1271 Out << "\""; 1272 printEscapedString(allocaI->getName()); 1273 Out << "\", " << bbname << ");"; 1274 if (allocaI->getAlignment()) 1275 nl(Out) << iName << "->setAlignment(" 1276 << allocaI->getAlignment() << ");"; 1277 break; 1278 } 1279 case Instruction::Load:{ 1280 const LoadInst* load = cast<LoadInst>(I); 1281 Out << "LoadInst* " << iName << " = new LoadInst(" 1282 << opNames[0] << ", \""; 1283 printEscapedString(load->getName()); 1284 Out << "\", " << (load->isVolatile() ? "true" : "false" ) 1285 << ", " << bbname << ");"; 1286 break; 1287 } 1288 case Instruction::Store: { 1289 const StoreInst* store = cast<StoreInst>(I); 1290 Out << " new StoreInst(" 1291 << opNames[0] << ", " 1292 << opNames[1] << ", " 1293 << (store->isVolatile() ? "true" : "false") 1294 << ", " << bbname << ");"; 1295 break; 1296 } 1297 case Instruction::GetElementPtr: { 1298 const GetElementPtrInst* gep = cast<GetElementPtrInst>(I); 1299 if (gep->getNumOperands() <= 2) { 1300 Out << "GetElementPtrInst* " << iName << " = GetElementPtrInst::Create(" 1301 << opNames[0]; 1302 if (gep->getNumOperands() == 2) 1303 Out << ", " << opNames[1]; 1304 } else { 1305 Out << "std::vector<Value*> " << iName << "_indices;"; 1306 nl(Out); 1307 for (unsigned i = 1; i < gep->getNumOperands(); ++i ) { 1308 Out << iName << "_indices.push_back(" 1309 << opNames[i] << ");"; 1310 nl(Out); 1311 } 1312 Out << "Instruction* " << iName << " = GetElementPtrInst::Create(" 1313 << opNames[0] << ", " << iName << "_indices.begin(), " 1314 << iName << "_indices.end()"; 1315 } 1316 Out << ", \""; 1317 printEscapedString(gep->getName()); 1318 Out << "\", " << bbname << ");"; 1319 break; 1320 } 1321 case Instruction::PHI: { 1322 const PHINode* phi = cast<PHINode>(I); 1323 1324 Out << "PHINode* " << iName << " = PHINode::Create(" 1325 << getCppName(phi->getType()) << ", \""; 1326 printEscapedString(phi->getName()); 1327 Out << "\", " << bbname << ");"; 1328 nl(Out) << iName << "->reserveOperandSpace(" 1329 << phi->getNumIncomingValues() 1330 << ");"; 1331 nl(Out); 1332 for (unsigned i = 0; i < phi->getNumOperands(); i+=2) { 1333 Out << iName << "->addIncoming(" 1334 << opNames[i] << ", " << opNames[i+1] << ");"; 1335 nl(Out); 1336 } 1337 break; 1338 } 1339 case Instruction::Trunc: 1340 case Instruction::ZExt: 1341 case Instruction::SExt: 1342 case Instruction::FPTrunc: 1343 case Instruction::FPExt: 1344 case Instruction::FPToUI: 1345 case Instruction::FPToSI: 1346 case Instruction::UIToFP: 1347 case Instruction::SIToFP: 1348 case Instruction::PtrToInt: 1349 case Instruction::IntToPtr: 1350 case Instruction::BitCast: { 1351 const CastInst* cst = cast<CastInst>(I); 1352 Out << "CastInst* " << iName << " = new "; 1353 switch (I->getOpcode()) { 1354 case Instruction::Trunc: Out << "TruncInst"; break; 1355 case Instruction::ZExt: Out << "ZExtInst"; break; 1356 case Instruction::SExt: Out << "SExtInst"; break; 1357 case Instruction::FPTrunc: Out << "FPTruncInst"; break; 1358 case Instruction::FPExt: Out << "FPExtInst"; break; 1359 case Instruction::FPToUI: Out << "FPToUIInst"; break; 1360 case Instruction::FPToSI: Out << "FPToSIInst"; break; 1361 case Instruction::UIToFP: Out << "UIToFPInst"; break; 1362 case Instruction::SIToFP: Out << "SIToFPInst"; break; 1363 case Instruction::PtrToInt: Out << "PtrToIntInst"; break; 1364 case Instruction::IntToPtr: Out << "IntToPtrInst"; break; 1365 case Instruction::BitCast: Out << "BitCastInst"; break; 1366 default: assert(!"Unreachable"); break; 1367 } 1368 Out << "(" << opNames[0] << ", " 1369 << getCppName(cst->getType()) << ", \""; 1370 printEscapedString(cst->getName()); 1371 Out << "\", " << bbname << ");"; 1372 break; 1373 } 1374 case Instruction::Call:{ 1375 const CallInst* call = cast<CallInst>(I); 1376 if (const InlineAsm* ila = dyn_cast<InlineAsm>(call->getCalledValue())) { 1377 Out << "InlineAsm* " << getCppName(ila) << " = InlineAsm::get(" 1378 << getCppName(ila->getFunctionType()) << ", \"" 1379 << ila->getAsmString() << "\", \"" 1380 << ila->getConstraintString() << "\"," 1381 << (ila->hasSideEffects() ? "true" : "false") << ");"; 1382 nl(Out); 1383 } 1384 if (call->getNumOperands() > 2) { 1385 Out << "std::vector<Value*> " << iName << "_params;"; 1386 nl(Out); 1387 for (unsigned i = 1; i < call->getNumOperands(); ++i) { 1388 Out << iName << "_params.push_back(" << opNames[i] << ");"; 1389 nl(Out); 1390 } 1391 Out << "CallInst* " << iName << " = CallInst::Create(" 1392 << opNames[0] << ", " << iName << "_params.begin(), " 1393 << iName << "_params.end(), \""; 1394 } else if (call->getNumOperands() == 2) { 1395 Out << "CallInst* " << iName << " = CallInst::Create(" 1396 << opNames[0] << ", " << opNames[1] << ", \""; 1397 } else { 1398 Out << "CallInst* " << iName << " = CallInst::Create(" << opNames[0] 1399 << ", \""; 1400 } 1401 printEscapedString(call->getName()); 1402 Out << "\", " << bbname << ");"; 1403 nl(Out) << iName << "->setCallingConv("; 1404 printCallingConv(call->getCallingConv()); 1405 Out << ");"; 1406 nl(Out) << iName << "->setTailCall(" 1407 << (call->isTailCall() ? "true":"false"); 1408 Out << ");"; 1409 printAttributes(call->getAttributes(), iName); 1410 Out << iName << "->setAttributes(" << iName << "_PAL);"; 1411 nl(Out); 1412 break; 1413 } 1414 case Instruction::Select: { 1415 const SelectInst* sel = cast<SelectInst>(I); 1416 Out << "SelectInst* " << getCppName(sel) << " = SelectInst::Create("; 1417 Out << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", \""; 1418 printEscapedString(sel->getName()); 1419 Out << "\", " << bbname << ");"; 1420 break; 1421 } 1422 case Instruction::UserOp1: 1423 /// FALL THROUGH 1424 case Instruction::UserOp2: { 1425 /// FIXME: What should be done here? 1426 break; 1427 } 1428 case Instruction::VAArg: { 1429 const VAArgInst* va = cast<VAArgInst>(I); 1430 Out << "VAArgInst* " << getCppName(va) << " = new VAArgInst(" 1431 << opNames[0] << ", " << getCppName(va->getType()) << ", \""; 1432 printEscapedString(va->getName()); 1433 Out << "\", " << bbname << ");"; 1434 break; 1435 } 1436 case Instruction::ExtractElement: { 1437 const ExtractElementInst* eei = cast<ExtractElementInst>(I); 1438 Out << "ExtractElementInst* " << getCppName(eei) 1439 << " = new ExtractElementInst(" << opNames[0] 1440 << ", " << opNames[1] << ", \""; 1441 printEscapedString(eei->getName()); 1442 Out << "\", " << bbname << ");"; 1443 break; 1444 } 1445 case Instruction::InsertElement: { 1446 const InsertElementInst* iei = cast<InsertElementInst>(I); 1447 Out << "InsertElementInst* " << getCppName(iei) 1448 << " = InsertElementInst::Create(" << opNames[0] 1449 << ", " << opNames[1] << ", " << opNames[2] << ", \""; 1450 printEscapedString(iei->getName()); 1451 Out << "\", " << bbname << ");"; 1452 break; 1453 } 1454 case Instruction::ShuffleVector: { 1455 const ShuffleVectorInst* svi = cast<ShuffleVectorInst>(I); 1456 Out << "ShuffleVectorInst* " << getCppName(svi) 1457 << " = new ShuffleVectorInst(" << opNames[0] 1458 << ", " << opNames[1] << ", " << opNames[2] << ", \""; 1459 printEscapedString(svi->getName()); 1460 Out << "\", " << bbname << ");"; 1461 break; 1462 } 1463 case Instruction::ExtractValue: { 1464 const ExtractValueInst *evi = cast<ExtractValueInst>(I); 1465 Out << "std::vector<unsigned> " << iName << "_indices;"; 1466 nl(Out); 1467 for (unsigned i = 0; i < evi->getNumIndices(); ++i) { 1468 Out << iName << "_indices.push_back(" 1469 << evi->idx_begin()[i] << ");"; 1470 nl(Out); 1471 } 1472 Out << "ExtractValueInst* " << getCppName(evi) 1473 << " = ExtractValueInst::Create(" << opNames[0] 1474 << ", " 1475 << iName << "_indices.begin(), " << iName << "_indices.end(), \""; 1476 printEscapedString(evi->getName()); 1477 Out << "\", " << bbname << ");"; 1478 break; 1479 } 1480 case Instruction::InsertValue: { 1481 const InsertValueInst *ivi = cast<InsertValueInst>(I); 1482 Out << "std::vector<unsigned> " << iName << "_indices;"; 1483 nl(Out); 1484 for (unsigned i = 0; i < ivi->getNumIndices(); ++i) { 1485 Out << iName << "_indices.push_back(" 1486 << ivi->idx_begin()[i] << ");"; 1487 nl(Out); 1488 } 1489 Out << "InsertValueInst* " << getCppName(ivi) 1490 << " = InsertValueInst::Create(" << opNames[0] 1491 << ", " << opNames[1] << ", " 1492 << iName << "_indices.begin(), " << iName << "_indices.end(), \""; 1493 printEscapedString(ivi->getName()); 1494 Out << "\", " << bbname << ");"; 1495 break; 1496 } 1497 } 1498 DefinedValues.insert(I); 1499 nl(Out); 1500 delete [] opNames; 1501} 1502 1503 // Print out the types, constants and declarations needed by one function 1504 void CppWriter::printFunctionUses(const Function* F) { 1505 nl(Out) << "// Type Definitions"; nl(Out); 1506 if (!is_inline) { 1507 // Print the function's return type 1508 printType(F->getReturnType()); 1509 1510 // Print the function's function type 1511 printType(F->getFunctionType()); 1512 1513 // Print the types of each of the function's arguments 1514 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); 1515 AI != AE; ++AI) { 1516 printType(AI->getType()); 1517 } 1518 } 1519 1520 // Print type definitions for every type referenced by an instruction and 1521 // make a note of any global values or constants that are referenced 1522 SmallPtrSet<GlobalValue*,64> gvs; 1523 SmallPtrSet<Constant*,64> consts; 1524 for (Function::const_iterator BB = F->begin(), BE = F->end(); 1525 BB != BE; ++BB){ 1526 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); 1527 I != E; ++I) { 1528 // Print the type of the instruction itself 1529 printType(I->getType()); 1530 1531 // Print the type of each of the instruction's operands 1532 for (unsigned i = 0; i < I->getNumOperands(); ++i) { 1533 Value* operand = I->getOperand(i); 1534 printType(operand->getType()); 1535 1536 // If the operand references a GVal or Constant, make a note of it 1537 if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) { 1538 gvs.insert(GV); 1539 if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) 1540 if (GVar->hasInitializer()) 1541 consts.insert(GVar->getInitializer()); 1542 } else if (Constant* C = dyn_cast<Constant>(operand)) 1543 consts.insert(C); 1544 } 1545 } 1546 } 1547 1548 // Print the function declarations for any functions encountered 1549 nl(Out) << "// Function Declarations"; nl(Out); 1550 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); 1551 I != E; ++I) { 1552 if (Function* Fun = dyn_cast<Function>(*I)) { 1553 if (!is_inline || Fun != F) 1554 printFunctionHead(Fun); 1555 } 1556 } 1557 1558 // Print the global variable declarations for any variables encountered 1559 nl(Out) << "// Global Variable Declarations"; nl(Out); 1560 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); 1561 I != E; ++I) { 1562 if (GlobalVariable* F = dyn_cast<GlobalVariable>(*I)) 1563 printVariableHead(F); 1564 } 1565 1566 // Print the constants found 1567 nl(Out) << "// Constant Definitions"; nl(Out); 1568 for (SmallPtrSet<Constant*,64>::iterator I = consts.begin(), 1569 E = consts.end(); I != E; ++I) { 1570 printConstant(*I); 1571 } 1572 1573 // Process the global variables definitions now that all the constants have 1574 // been emitted. These definitions just couple the gvars with their constant 1575 // initializers. 1576 nl(Out) << "// Global Variable Definitions"; nl(Out); 1577 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); 1578 I != E; ++I) { 1579 if (GlobalVariable* GV = dyn_cast<GlobalVariable>(*I)) 1580 printVariableBody(GV); 1581 } 1582 } 1583 1584 void CppWriter::printFunctionHead(const Function* F) { 1585 nl(Out) << "Function* " << getCppName(F); 1586 if (is_inline) { 1587 Out << " = mod->getFunction(\""; 1588 printEscapedString(F->getName()); 1589 Out << "\", " << getCppName(F->getFunctionType()) << ");"; 1590 nl(Out) << "if (!" << getCppName(F) << ") {"; 1591 nl(Out) << getCppName(F); 1592 } 1593 Out<< " = Function::Create("; 1594 nl(Out,1) << "/*Type=*/" << getCppName(F->getFunctionType()) << ","; 1595 nl(Out) << "/*Linkage=*/"; 1596 printLinkageType(F->getLinkage()); 1597 Out << ","; 1598 nl(Out) << "/*Name=*/\""; 1599 printEscapedString(F->getName()); 1600 Out << "\", mod); " << (F->isDeclaration()? "// (external, no body)" : ""); 1601 nl(Out,-1); 1602 printCppName(F); 1603 Out << "->setCallingConv("; 1604 printCallingConv(F->getCallingConv()); 1605 Out << ");"; 1606 nl(Out); 1607 if (F->hasSection()) { 1608 printCppName(F); 1609 Out << "->setSection(\"" << F->getSection() << "\");"; 1610 nl(Out); 1611 } 1612 if (F->getAlignment()) { 1613 printCppName(F); 1614 Out << "->setAlignment(" << F->getAlignment() << ");"; 1615 nl(Out); 1616 } 1617 if (F->getVisibility() != GlobalValue::DefaultVisibility) { 1618 printCppName(F); 1619 Out << "->setVisibility("; 1620 printVisibilityType(F->getVisibility()); 1621 Out << ");"; 1622 nl(Out); 1623 } 1624 if (F->hasGC()) { 1625 printCppName(F); 1626 Out << "->setGC(\"" << F->getGC() << "\");"; 1627 nl(Out); 1628 } 1629 if (is_inline) { 1630 Out << "}"; 1631 nl(Out); 1632 } 1633 printAttributes(F->getAttributes(), getCppName(F)); 1634 printCppName(F); 1635 Out << "->setAttributes(" << getCppName(F) << "_PAL);"; 1636 nl(Out); 1637 } 1638 1639 void CppWriter::printFunctionBody(const Function *F) { 1640 if (F->isDeclaration()) 1641 return; // external functions have no bodies. 1642 1643 // Clear the DefinedValues and ForwardRefs maps because we can't have 1644 // cross-function forward refs 1645 ForwardRefs.clear(); 1646 DefinedValues.clear(); 1647 1648 // Create all the argument values 1649 if (!is_inline) { 1650 if (!F->arg_empty()) { 1651 Out << "Function::arg_iterator args = " << getCppName(F) 1652 << "->arg_begin();"; 1653 nl(Out); 1654 } 1655 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); 1656 AI != AE; ++AI) { 1657 Out << "Value* " << getCppName(AI) << " = args++;"; 1658 nl(Out); 1659 if (AI->hasName()) { 1660 Out << getCppName(AI) << "->setName(\"" << AI->getName() << "\");"; 1661 nl(Out); 1662 } 1663 } 1664 } 1665 1666 // Create all the basic blocks 1667 nl(Out); 1668 for (Function::const_iterator BI = F->begin(), BE = F->end(); 1669 BI != BE; ++BI) { 1670 std::string bbname(getCppName(BI)); 1671 Out << "BasicBlock* " << bbname << " = BasicBlock::Create(\""; 1672 if (BI->hasName()) 1673 printEscapedString(BI->getName()); 1674 Out << "\"," << getCppName(BI->getParent()) << ",0);"; 1675 nl(Out); 1676 } 1677 1678 // Output all of its basic blocks... for the function 1679 for (Function::const_iterator BI = F->begin(), BE = F->end(); 1680 BI != BE; ++BI) { 1681 std::string bbname(getCppName(BI)); 1682 nl(Out) << "// Block " << BI->getName() << " (" << bbname << ")"; 1683 nl(Out); 1684 1685 // Output all of the instructions in the basic block... 1686 for (BasicBlock::const_iterator I = BI->begin(), E = BI->end(); 1687 I != E; ++I) { 1688 printInstruction(I,bbname); 1689 } 1690 } 1691 1692 // Loop over the ForwardRefs and resolve them now that all instructions 1693 // are generated. 1694 if (!ForwardRefs.empty()) { 1695 nl(Out) << "// Resolve Forward References"; 1696 nl(Out); 1697 } 1698 1699 while (!ForwardRefs.empty()) { 1700 ForwardRefMap::iterator I = ForwardRefs.begin(); 1701 Out << I->second << "->replaceAllUsesWith(" 1702 << getCppName(I->first) << "); delete " << I->second << ";"; 1703 nl(Out); 1704 ForwardRefs.erase(I); 1705 } 1706 } 1707 1708 void CppWriter::printInline(const std::string& fname, 1709 const std::string& func) { 1710 const Function* F = TheModule->getFunction(func); 1711 if (!F) { 1712 error(std::string("Function '") + func + "' not found in input module"); 1713 return; 1714 } 1715 if (F->isDeclaration()) { 1716 error(std::string("Function '") + func + "' is external!"); 1717 return; 1718 } 1719 nl(Out) << "BasicBlock* " << fname << "(Module* mod, Function *" 1720 << getCppName(F); 1721 unsigned arg_count = 1; 1722 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); 1723 AI != AE; ++AI) { 1724 Out << ", Value* arg_" << arg_count; 1725 } 1726 Out << ") {"; 1727 nl(Out); 1728 is_inline = true; 1729 printFunctionUses(F); 1730 printFunctionBody(F); 1731 is_inline = false; 1732 Out << "return " << getCppName(F->begin()) << ";"; 1733 nl(Out) << "}"; 1734 nl(Out); 1735 } 1736 1737 void CppWriter::printModuleBody() { 1738 // Print out all the type definitions 1739 nl(Out) << "// Type Definitions"; nl(Out); 1740 printTypes(TheModule); 1741 1742 // Functions can call each other and global variables can reference them so 1743 // define all the functions first before emitting their function bodies. 1744 nl(Out) << "// Function Declarations"; nl(Out); 1745 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end(); 1746 I != E; ++I) 1747 printFunctionHead(I); 1748 1749 // Process the global variables declarations. We can't initialze them until 1750 // after the constants are printed so just print a header for each global 1751 nl(Out) << "// Global Variable Declarations\n"; nl(Out); 1752 for (Module::const_global_iterator I = TheModule->global_begin(), 1753 E = TheModule->global_end(); I != E; ++I) { 1754 printVariableHead(I); 1755 } 1756 1757 // Print out all the constants definitions. Constants don't recurse except 1758 // through GlobalValues. All GlobalValues have been declared at this point 1759 // so we can proceed to generate the constants. 1760 nl(Out) << "// Constant Definitions"; nl(Out); 1761 printConstants(TheModule); 1762 1763 // Process the global variables definitions now that all the constants have 1764 // been emitted. These definitions just couple the gvars with their constant 1765 // initializers. 1766 nl(Out) << "// Global Variable Definitions"; nl(Out); 1767 for (Module::const_global_iterator I = TheModule->global_begin(), 1768 E = TheModule->global_end(); I != E; ++I) { 1769 printVariableBody(I); 1770 } 1771 1772 // Finally, we can safely put out all of the function bodies. 1773 nl(Out) << "// Function Definitions"; nl(Out); 1774 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end(); 1775 I != E; ++I) { 1776 if (!I->isDeclaration()) { 1777 nl(Out) << "// Function: " << I->getName() << " (" << getCppName(I) 1778 << ")"; 1779 nl(Out) << "{"; 1780 nl(Out,1); 1781 printFunctionBody(I); 1782 nl(Out,-1) << "}"; 1783 nl(Out); 1784 } 1785 } 1786 } 1787 1788 void CppWriter::printProgram(const std::string& fname, 1789 const std::string& mName) { 1790 Out << "#include <llvm/Module.h>\n"; 1791 Out << "#include <llvm/DerivedTypes.h>\n"; 1792 Out << "#include <llvm/Constants.h>\n"; 1793 Out << "#include <llvm/GlobalVariable.h>\n"; 1794 Out << "#include <llvm/Function.h>\n"; 1795 Out << "#include <llvm/CallingConv.h>\n"; 1796 Out << "#include <llvm/BasicBlock.h>\n"; 1797 Out << "#include <llvm/Instructions.h>\n"; 1798 Out << "#include <llvm/InlineAsm.h>\n"; 1799 Out << "#include <llvm/Support/MathExtras.h>\n"; 1800 Out << "#include <llvm/Support/raw_ostream.h>\n"; 1801 Out << "#include <llvm/Pass.h>\n"; 1802 Out << "#include <llvm/PassManager.h>\n"; 1803 Out << "#include <llvm/ADT/SmallVector.h>\n"; 1804 Out << "#include <llvm/Analysis/Verifier.h>\n"; 1805 Out << "#include <llvm/Assembly/PrintModulePass.h>\n"; 1806 Out << "#include <algorithm>\n"; 1807 Out << "using namespace llvm;\n\n"; 1808 Out << "Module* " << fname << "();\n\n"; 1809 Out << "int main(int argc, char**argv) {\n"; 1810 Out << " Module* Mod = " << fname << "();\n"; 1811 Out << " verifyModule(*Mod, PrintMessageAction);\n"; 1812 Out << " outs().flush();\n"; 1813 Out << " PassManager PM;\n"; 1814 Out << " PM.add(createPrintModulePass(&outs()));\n"; 1815 Out << " PM.run(*Mod);\n"; 1816 Out << " return 0;\n"; 1817 Out << "}\n\n"; 1818 printModule(fname,mName); 1819 } 1820 1821 void CppWriter::printModule(const std::string& fname, 1822 const std::string& mName) { 1823 nl(Out) << "Module* " << fname << "() {"; 1824 nl(Out,1) << "// Module Construction"; 1825 nl(Out) << "Module* mod = new Module(\"" << mName << "\");"; 1826 if (!TheModule->getTargetTriple().empty()) { 1827 nl(Out) << "mod->setDataLayout(\"" << TheModule->getDataLayout() << "\");"; 1828 } 1829 if (!TheModule->getTargetTriple().empty()) { 1830 nl(Out) << "mod->setTargetTriple(\"" << TheModule->getTargetTriple() 1831 << "\");"; 1832 } 1833 1834 if (!TheModule->getModuleInlineAsm().empty()) { 1835 nl(Out) << "mod->setModuleInlineAsm(\""; 1836 printEscapedString(TheModule->getModuleInlineAsm()); 1837 Out << "\");"; 1838 } 1839 nl(Out); 1840 1841 // Loop over the dependent libraries and emit them. 1842 Module::lib_iterator LI = TheModule->lib_begin(); 1843 Module::lib_iterator LE = TheModule->lib_end(); 1844 while (LI != LE) { 1845 Out << "mod->addLibrary(\"" << *LI << "\");"; 1846 nl(Out); 1847 ++LI; 1848 } 1849 printModuleBody(); 1850 nl(Out) << "return mod;"; 1851 nl(Out,-1) << "}"; 1852 nl(Out); 1853 } 1854 1855 void CppWriter::printContents(const std::string& fname, 1856 const std::string& mName) { 1857 Out << "\nModule* " << fname << "(Module *mod) {\n"; 1858 Out << "\nmod->setModuleIdentifier(\"" << mName << "\");\n"; 1859 printModuleBody(); 1860 Out << "\nreturn mod;\n"; 1861 Out << "\n}\n"; 1862 } 1863 1864 void CppWriter::printFunction(const std::string& fname, 1865 const std::string& funcName) { 1866 const Function* F = TheModule->getFunction(funcName); 1867 if (!F) { 1868 error(std::string("Function '") + funcName + "' not found in input module"); 1869 return; 1870 } 1871 Out << "\nFunction* " << fname << "(Module *mod) {\n"; 1872 printFunctionUses(F); 1873 printFunctionHead(F); 1874 printFunctionBody(F); 1875 Out << "return " << getCppName(F) << ";\n"; 1876 Out << "}\n"; 1877 } 1878 1879 void CppWriter::printFunctions() { 1880 const Module::FunctionListType &funcs = TheModule->getFunctionList(); 1881 Module::const_iterator I = funcs.begin(); 1882 Module::const_iterator IE = funcs.end(); 1883 1884 for (; I != IE; ++I) { 1885 const Function &func = *I; 1886 if (!func.isDeclaration()) { 1887 std::string name("define_"); 1888 name += func.getName(); 1889 printFunction(name, func.getName()); 1890 } 1891 } 1892 } 1893 1894 void CppWriter::printVariable(const std::string& fname, 1895 const std::string& varName) { 1896 const GlobalVariable* GV = TheModule->getNamedGlobal(varName); 1897 1898 if (!GV) { 1899 error(std::string("Variable '") + varName + "' not found in input module"); 1900 return; 1901 } 1902 Out << "\nGlobalVariable* " << fname << "(Module *mod) {\n"; 1903 printVariableUses(GV); 1904 printVariableHead(GV); 1905 printVariableBody(GV); 1906 Out << "return " << getCppName(GV) << ";\n"; 1907 Out << "}\n"; 1908 } 1909 1910 void CppWriter::printType(const std::string& fname, 1911 const std::string& typeName) { 1912 const Type* Ty = TheModule->getTypeByName(typeName); 1913 if (!Ty) { 1914 error(std::string("Type '") + typeName + "' not found in input module"); 1915 return; 1916 } 1917 Out << "\nType* " << fname << "(Module *mod) {\n"; 1918 printType(Ty); 1919 Out << "return " << getCppName(Ty) << ";\n"; 1920 Out << "}\n"; 1921 } 1922 1923 bool CppWriter::runOnModule(Module &M) { 1924 TheModule = &M; 1925 1926 // Emit a header 1927 Out << "// Generated by llvm2cpp - DO NOT MODIFY!\n\n"; 1928 1929 // Get the name of the function we're supposed to generate 1930 std::string fname = FuncName.getValue(); 1931 1932 // Get the name of the thing we are to generate 1933 std::string tgtname = NameToGenerate.getValue(); 1934 if (GenerationType == GenModule || 1935 GenerationType == GenContents || 1936 GenerationType == GenProgram || 1937 GenerationType == GenFunctions) { 1938 if (tgtname == "!bad!") { 1939 if (M.getModuleIdentifier() == "-") 1940 tgtname = "<stdin>"; 1941 else 1942 tgtname = M.getModuleIdentifier(); 1943 } 1944 } else if (tgtname == "!bad!") 1945 error("You must use the -for option with -gen-{function,variable,type}"); 1946 1947 switch (WhatToGenerate(GenerationType)) { 1948 case GenProgram: 1949 if (fname.empty()) 1950 fname = "makeLLVMModule"; 1951 printProgram(fname,tgtname); 1952 break; 1953 case GenModule: 1954 if (fname.empty()) 1955 fname = "makeLLVMModule"; 1956 printModule(fname,tgtname); 1957 break; 1958 case GenContents: 1959 if (fname.empty()) 1960 fname = "makeLLVMModuleContents"; 1961 printContents(fname,tgtname); 1962 break; 1963 case GenFunction: 1964 if (fname.empty()) 1965 fname = "makeLLVMFunction"; 1966 printFunction(fname,tgtname); 1967 break; 1968 case GenFunctions: 1969 printFunctions(); 1970 break; 1971 case GenInline: 1972 if (fname.empty()) 1973 fname = "makeLLVMInline"; 1974 printInline(fname,tgtname); 1975 break; 1976 case GenVariable: 1977 if (fname.empty()) 1978 fname = "makeLLVMVariable"; 1979 printVariable(fname,tgtname); 1980 break; 1981 case GenType: 1982 if (fname.empty()) 1983 fname = "makeLLVMType"; 1984 printType(fname,tgtname); 1985 break; 1986 default: 1987 error("Invalid generation option"); 1988 } 1989 1990 return false; 1991 } 1992} 1993 1994char CppWriter::ID = 0; 1995 1996//===----------------------------------------------------------------------===// 1997// External Interface declaration 1998//===----------------------------------------------------------------------===// 1999 2000bool CPPTargetMachine::addPassesToEmitWholeFile(PassManager &PM, 2001 raw_ostream &o, 2002 CodeGenFileType FileType, 2003 CodeGenOpt::Level OptLevel) { 2004 if (FileType != TargetMachine::AssemblyFile) return true; 2005 PM.add(new CppWriter(o)); 2006 return false; 2007} 2008