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/MC/MCAsmInfo.h" 26 #include "llvm/MC/MCInstrInfo.h" 27 #include "llvm/MC/MCSubtargetInfo.h" 28 #include "llvm/ADT/SmallPtrSet.h" 29 #include "llvm/Support/CommandLine.h" 30 #include "llvm/Support/ErrorHandling.h" 31 #include "llvm/Support/FormattedStream.h" 32 #include "llvm/Support/TargetRegistry.h" 33 #include "llvm/ADT/StringExtras.h" 34 #include "llvm/Config/config.h" 35 #include <algorithm> 36 #include <cstdio> 37 #include <map> 38 #include <set> 39 using namespace llvm; 40 41 static cl::opt<std::string> 42 FuncName("cppfname", cl::desc("Specify the name of the generated function"), 43 cl::value_desc("function name")); 44 45 enum WhatToGenerate { 46 GenProgram, 47 GenModule, 48 GenContents, 49 GenFunction, 50 GenFunctions, 51 GenInline, 52 GenVariable, 53 GenType 54 }; 55 56 static cl::opt<WhatToGenerate> GenerationType("cppgen", cl::Optional, 57 cl::desc("Choose what kind of output to generate"), 58 cl::init(GenProgram), 59 cl::values( 60 clEnumValN(GenProgram, "program", "Generate a complete program"), 61 clEnumValN(GenModule, "module", "Generate a module definition"), 62 clEnumValN(GenContents, "contents", "Generate contents of a module"), 63 clEnumValN(GenFunction, "function", "Generate a function definition"), 64 clEnumValN(GenFunctions,"functions", "Generate all function definitions"), 65 clEnumValN(GenInline, "inline", "Generate an inline function"), 66 clEnumValN(GenVariable, "variable", "Generate a variable definition"), 67 clEnumValN(GenType, "type", "Generate a type definition"), 68 clEnumValEnd 69 ) 70 ); 71 72 static cl::opt<std::string> NameToGenerate("cppfor", cl::Optional, 73 cl::desc("Specify the name of the thing to generate"), 74 cl::init("!bad!")); 75 76 extern "C" void LLVMInitializeCppBackendTarget() { 77 // Register the target. 78 RegisterTargetMachine<CPPTargetMachine> X(TheCppBackendTarget); 79 } 80 81 namespace { 82 typedef std::vector<Type*> TypeList; 83 typedef std::map<Type*,std::string> TypeMap; 84 typedef std::map<const Value*,std::string> ValueMap; 85 typedef std::set<std::string> NameSet; 86 typedef std::set<Type*> TypeSet; 87 typedef std::set<const Value*> ValueSet; 88 typedef std::map<const Value*,std::string> ForwardRefMap; 89 90 /// CppWriter - This class is the main chunk of code that converts an LLVM 91 /// module to a C++ translation unit. 92 class CppWriter : public ModulePass { 93 formatted_raw_ostream &Out; 94 const Module *TheModule; 95 uint64_t uniqueNum; 96 TypeMap TypeNames; 97 ValueMap ValueNames; 98 NameSet UsedNames; 99 TypeSet DefinedTypes; 100 ValueSet DefinedValues; 101 ForwardRefMap ForwardRefs; 102 bool is_inline; 103 unsigned indent_level; 104 105 public: 106 static char ID; 107 explicit CppWriter(formatted_raw_ostream &o) : 108 ModulePass(ID), Out(o), uniqueNum(0), is_inline(false), indent_level(0){} 109 110 virtual const char *getPassName() const { return "C++ backend"; } 111 112 bool runOnModule(Module &M); 113 114 void printProgram(const std::string& fname, const std::string& modName ); 115 void printModule(const std::string& fname, const std::string& modName ); 116 void printContents(const std::string& fname, const std::string& modName ); 117 void printFunction(const std::string& fname, const std::string& funcName ); 118 void printFunctions(); 119 void printInline(const std::string& fname, const std::string& funcName ); 120 void printVariable(const std::string& fname, const std::string& varName ); 121 void printType(const std::string& fname, const std::string& typeName ); 122 123 void error(const std::string& msg); 124 125 126 formatted_raw_ostream& nl(formatted_raw_ostream &Out, int delta = 0); 127 inline void in() { indent_level++; } 128 inline void out() { if (indent_level >0) indent_level--; } 129 130 private: 131 void printLinkageType(GlobalValue::LinkageTypes LT); 132 void printVisibilityType(GlobalValue::VisibilityTypes VisTypes); 133 void printThreadLocalMode(GlobalVariable::ThreadLocalMode TLM); 134 void printCallingConv(CallingConv::ID cc); 135 void printEscapedString(const std::string& str); 136 void printCFP(const ConstantFP* CFP); 137 138 std::string getCppName(Type* val); 139 inline void printCppName(Type* val); 140 141 std::string getCppName(const Value* val); 142 inline void printCppName(const Value* val); 143 144 void printAttributes(const AttrListPtr &PAL, const std::string &name); 145 void printType(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(const Value*); 160 161 void printModuleBody(); 162 }; 163 } // end anonymous namespace. 164 165 formatted_raw_ostream &CppWriter::nl(formatted_raw_ostream &Out, int delta) { 166 Out << '\n'; 167 if (delta >= 0 || indent_level >= unsigned(-delta)) 168 indent_level += delta; 169 Out.indent(indent_level); 170 return Out; 171 } 172 173 static inline void sanitize(std::string &str) { 174 for (size_t i = 0; i < str.length(); ++i) 175 if (!isalnum(str[i]) && str[i] != '_') 176 str[i] = '_'; 177 } 178 179 static std::string getTypePrefix(Type *Ty) { 180 switch (Ty->getTypeID()) { 181 case Type::VoidTyID: return "void_"; 182 case Type::IntegerTyID: 183 return "int" + utostr(cast<IntegerType>(Ty)->getBitWidth()) + "_"; 184 case Type::FloatTyID: return "float_"; 185 case Type::DoubleTyID: return "double_"; 186 case Type::LabelTyID: return "label_"; 187 case Type::FunctionTyID: return "func_"; 188 case Type::StructTyID: return "struct_"; 189 case Type::ArrayTyID: return "array_"; 190 case Type::PointerTyID: return "ptr_"; 191 case Type::VectorTyID: return "packed_"; 192 default: return "other_"; 193 } 194 } 195 196 void CppWriter::error(const std::string& msg) { 197 report_fatal_error(msg); 198 } 199 200 static inline std::string ftostr(const APFloat& V) { 201 std::string Buf; 202 if (&V.getSemantics() == &APFloat::IEEEdouble) { 203 raw_string_ostream(Buf) << V.convertToDouble(); 204 return Buf; 205 } else if (&V.getSemantics() == &APFloat::IEEEsingle) { 206 raw_string_ostream(Buf) << (double)V.convertToFloat(); 207 return Buf; 208 } 209 return "<unknown format in ftostr>"; // error 210 } 211 212 // printCFP - Print a floating point constant .. very carefully :) 213 // This makes sure that conversion to/from floating yields the same binary 214 // result so that we don't lose precision. 215 void CppWriter::printCFP(const ConstantFP *CFP) { 216 bool ignored; 217 APFloat APF = APFloat(CFP->getValueAPF()); // copy 218 if (CFP->getType() == Type::getFloatTy(CFP->getContext())) 219 APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &ignored); 220 Out << "ConstantFP::get(mod->getContext(), "; 221 Out << "APFloat("; 222 #if HAVE_PRINTF_A 223 char Buffer[100]; 224 sprintf(Buffer, "%A", APF.convertToDouble()); 225 if ((!strncmp(Buffer, "0x", 2) || 226 !strncmp(Buffer, "-0x", 3) || 227 !strncmp(Buffer, "+0x", 3)) && 228 APF.bitwiseIsEqual(APFloat(atof(Buffer)))) { 229 if (CFP->getType() == Type::getDoubleTy(CFP->getContext())) 230 Out << "BitsToDouble(" << Buffer << ")"; 231 else 232 Out << "BitsToFloat((float)" << Buffer << ")"; 233 Out << ")"; 234 } else { 235 #endif 236 std::string StrVal = ftostr(CFP->getValueAPF()); 237 238 while (StrVal[0] == ' ') 239 StrVal.erase(StrVal.begin()); 240 241 // Check to make sure that the stringized number is not some string like 242 // "Inf" or NaN. Check that the string matches the "[-+]?[0-9]" regex. 243 if (((StrVal[0] >= '0' && StrVal[0] <= '9') || 244 ((StrVal[0] == '-' || StrVal[0] == '+') && 245 (StrVal[1] >= '0' && StrVal[1] <= '9'))) && 246 (CFP->isExactlyValue(atof(StrVal.c_str())))) { 247 if (CFP->getType() == Type::getDoubleTy(CFP->getContext())) 248 Out << StrVal; 249 else 250 Out << StrVal << "f"; 251 } else if (CFP->getType() == Type::getDoubleTy(CFP->getContext())) 252 Out << "BitsToDouble(0x" 253 << utohexstr(CFP->getValueAPF().bitcastToAPInt().getZExtValue()) 254 << "ULL) /* " << StrVal << " */"; 255 else 256 Out << "BitsToFloat(0x" 257 << utohexstr((uint32_t)CFP->getValueAPF(). 258 bitcastToAPInt().getZExtValue()) 259 << "U) /* " << StrVal << " */"; 260 Out << ")"; 261 #if HAVE_PRINTF_A 262 } 263 #endif 264 Out << ")"; 265 } 266 267 void CppWriter::printCallingConv(CallingConv::ID cc){ 268 // Print the calling convention. 269 switch (cc) { 270 case CallingConv::C: Out << "CallingConv::C"; break; 271 case CallingConv::Fast: Out << "CallingConv::Fast"; break; 272 case CallingConv::Cold: Out << "CallingConv::Cold"; break; 273 case CallingConv::FirstTargetCC: Out << "CallingConv::FirstTargetCC"; break; 274 default: Out << cc; break; 275 } 276 } 277 278 void CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) { 279 switch (LT) { 280 case GlobalValue::InternalLinkage: 281 Out << "GlobalValue::InternalLinkage"; break; 282 case GlobalValue::PrivateLinkage: 283 Out << "GlobalValue::PrivateLinkage"; break; 284 case GlobalValue::LinkerPrivateLinkage: 285 Out << "GlobalValue::LinkerPrivateLinkage"; break; 286 case GlobalValue::LinkerPrivateWeakLinkage: 287 Out << "GlobalValue::LinkerPrivateWeakLinkage"; break; 288 case GlobalValue::AvailableExternallyLinkage: 289 Out << "GlobalValue::AvailableExternallyLinkage "; break; 290 case GlobalValue::LinkOnceAnyLinkage: 291 Out << "GlobalValue::LinkOnceAnyLinkage "; break; 292 case GlobalValue::LinkOnceODRLinkage: 293 Out << "GlobalValue::LinkOnceODRLinkage "; break; 294 case GlobalValue::LinkOnceODRAutoHideLinkage: 295 Out << "GlobalValue::LinkOnceODRAutoHideLinkage"; break; 296 case GlobalValue::WeakAnyLinkage: 297 Out << "GlobalValue::WeakAnyLinkage"; break; 298 case GlobalValue::WeakODRLinkage: 299 Out << "GlobalValue::WeakODRLinkage"; break; 300 case GlobalValue::AppendingLinkage: 301 Out << "GlobalValue::AppendingLinkage"; break; 302 case GlobalValue::ExternalLinkage: 303 Out << "GlobalValue::ExternalLinkage"; break; 304 case GlobalValue::DLLImportLinkage: 305 Out << "GlobalValue::DLLImportLinkage"; break; 306 case GlobalValue::DLLExportLinkage: 307 Out << "GlobalValue::DLLExportLinkage"; break; 308 case GlobalValue::ExternalWeakLinkage: 309 Out << "GlobalValue::ExternalWeakLinkage"; break; 310 case GlobalValue::CommonLinkage: 311 Out << "GlobalValue::CommonLinkage"; break; 312 } 313 } 314 315 void CppWriter::printVisibilityType(GlobalValue::VisibilityTypes VisType) { 316 switch (VisType) { 317 case GlobalValue::DefaultVisibility: 318 Out << "GlobalValue::DefaultVisibility"; 319 break; 320 case GlobalValue::HiddenVisibility: 321 Out << "GlobalValue::HiddenVisibility"; 322 break; 323 case GlobalValue::ProtectedVisibility: 324 Out << "GlobalValue::ProtectedVisibility"; 325 break; 326 } 327 } 328 329 void CppWriter::printThreadLocalMode(GlobalVariable::ThreadLocalMode TLM) { 330 switch (TLM) { 331 case GlobalVariable::NotThreadLocal: 332 Out << "GlobalVariable::NotThreadLocal"; 333 break; 334 case GlobalVariable::GeneralDynamicTLSModel: 335 Out << "GlobalVariable::GeneralDynamicTLSModel"; 336 break; 337 case GlobalVariable::LocalDynamicTLSModel: 338 Out << "GlobalVariable::LocalDynamicTLSModel"; 339 break; 340 case GlobalVariable::InitialExecTLSModel: 341 Out << "GlobalVariable::InitialExecTLSModel"; 342 break; 343 case GlobalVariable::LocalExecTLSModel: 344 Out << "GlobalVariable::LocalExecTLSModel"; 345 break; 346 } 347 } 348 349 // printEscapedString - Print each character of the specified string, escaping 350 // it if it is not printable or if it is an escape char. 351 void CppWriter::printEscapedString(const std::string &Str) { 352 for (unsigned i = 0, e = Str.size(); i != e; ++i) { 353 unsigned char C = Str[i]; 354 if (isprint(C) && C != '"' && C != '\\') { 355 Out << C; 356 } else { 357 Out << "\\x" 358 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A')) 359 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A')); 360 } 361 } 362 } 363 364 std::string CppWriter::getCppName(Type* Ty) { 365 // First, handle the primitive types .. easy 366 if (Ty->isPrimitiveType() || Ty->isIntegerTy()) { 367 switch (Ty->getTypeID()) { 368 case Type::VoidTyID: return "Type::getVoidTy(mod->getContext())"; 369 case Type::IntegerTyID: { 370 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth(); 371 return "IntegerType::get(mod->getContext(), " + utostr(BitWidth) + ")"; 372 } 373 case Type::X86_FP80TyID: return "Type::getX86_FP80Ty(mod->getContext())"; 374 case Type::FloatTyID: return "Type::getFloatTy(mod->getContext())"; 375 case Type::DoubleTyID: return "Type::getDoubleTy(mod->getContext())"; 376 case Type::LabelTyID: return "Type::getLabelTy(mod->getContext())"; 377 case Type::X86_MMXTyID: return "Type::getX86_MMXTy(mod->getContext())"; 378 default: 379 error("Invalid primitive type"); 380 break; 381 } 382 // shouldn't be returned, but make it sensible 383 return "Type::getVoidTy(mod->getContext())"; 384 } 385 386 // Now, see if we've seen the type before and return that 387 TypeMap::iterator I = TypeNames.find(Ty); 388 if (I != TypeNames.end()) 389 return I->second; 390 391 // Okay, let's build a new name for this type. Start with a prefix 392 const char* prefix = 0; 393 switch (Ty->getTypeID()) { 394 case Type::FunctionTyID: prefix = "FuncTy_"; break; 395 case Type::StructTyID: prefix = "StructTy_"; break; 396 case Type::ArrayTyID: prefix = "ArrayTy_"; break; 397 case Type::PointerTyID: prefix = "PointerTy_"; break; 398 case Type::VectorTyID: prefix = "VectorTy_"; break; 399 default: prefix = "OtherTy_"; break; // prevent breakage 400 } 401 402 // See if the type has a name in the symboltable and build accordingly 403 std::string name; 404 if (StructType *STy = dyn_cast<StructType>(Ty)) 405 if (STy->hasName()) 406 name = STy->getName(); 407 408 if (name.empty()) 409 name = utostr(uniqueNum++); 410 411 name = std::string(prefix) + name; 412 sanitize(name); 413 414 // Save the name 415 return TypeNames[Ty] = name; 416 } 417 418 void CppWriter::printCppName(Type* Ty) { 419 printEscapedString(getCppName(Ty)); 420 } 421 422 std::string CppWriter::getCppName(const Value* val) { 423 std::string name; 424 ValueMap::iterator I = ValueNames.find(val); 425 if (I != ValueNames.end() && I->first == val) 426 return I->second; 427 428 if (const GlobalVariable* GV = dyn_cast<GlobalVariable>(val)) { 429 name = std::string("gvar_") + 430 getTypePrefix(GV->getType()->getElementType()); 431 } else if (isa<Function>(val)) { 432 name = std::string("func_"); 433 } else if (const Constant* C = dyn_cast<Constant>(val)) { 434 name = std::string("const_") + getTypePrefix(C->getType()); 435 } else if (const Argument* Arg = dyn_cast<Argument>(val)) { 436 if (is_inline) { 437 unsigned argNum = std::distance(Arg->getParent()->arg_begin(), 438 Function::const_arg_iterator(Arg)) + 1; 439 name = std::string("arg_") + utostr(argNum); 440 NameSet::iterator NI = UsedNames.find(name); 441 if (NI != UsedNames.end()) 442 name += std::string("_") + utostr(uniqueNum++); 443 UsedNames.insert(name); 444 return ValueNames[val] = name; 445 } else { 446 name = getTypePrefix(val->getType()); 447 } 448 } else { 449 name = getTypePrefix(val->getType()); 450 } 451 if (val->hasName()) 452 name += val->getName(); 453 else 454 name += utostr(uniqueNum++); 455 sanitize(name); 456 NameSet::iterator NI = UsedNames.find(name); 457 if (NI != UsedNames.end()) 458 name += std::string("_") + utostr(uniqueNum++); 459 UsedNames.insert(name); 460 return ValueNames[val] = name; 461 } 462 463 void CppWriter::printCppName(const Value* val) { 464 printEscapedString(getCppName(val)); 465 } 466 467 void CppWriter::printAttributes(const AttrListPtr &PAL, 468 const std::string &name) { 469 Out << "AttrListPtr " << name << "_PAL;"; 470 nl(Out); 471 if (!PAL.isEmpty()) { 472 Out << '{'; in(); nl(Out); 473 Out << "SmallVector<AttributeWithIndex, 4> Attrs;"; nl(Out); 474 Out << "AttributeWithIndex PAWI;"; nl(Out); 475 for (unsigned i = 0; i < PAL.getNumSlots(); ++i) { 476 unsigned index = PAL.getSlot(i).Index; 477 Attributes attrs = PAL.getSlot(i).Attrs; 478 Out << "PAWI.Index = " << index << "U; PAWI.Attrs = Attribute::None "; 479 #define HANDLE_ATTR(X) \ 480 if (attrs & Attribute::X) \ 481 Out << " | Attribute::" #X; \ 482 attrs &= ~Attribute::X; 483 484 HANDLE_ATTR(SExt); 485 HANDLE_ATTR(ZExt); 486 HANDLE_ATTR(NoReturn); 487 HANDLE_ATTR(InReg); 488 HANDLE_ATTR(StructRet); 489 HANDLE_ATTR(NoUnwind); 490 HANDLE_ATTR(NoAlias); 491 HANDLE_ATTR(ByVal); 492 HANDLE_ATTR(Nest); 493 HANDLE_ATTR(ReadNone); 494 HANDLE_ATTR(ReadOnly); 495 HANDLE_ATTR(NoInline); 496 HANDLE_ATTR(AlwaysInline); 497 HANDLE_ATTR(OptimizeForSize); 498 HANDLE_ATTR(StackProtect); 499 HANDLE_ATTR(StackProtectReq); 500 HANDLE_ATTR(NoCapture); 501 HANDLE_ATTR(NoRedZone); 502 HANDLE_ATTR(NoImplicitFloat); 503 HANDLE_ATTR(Naked); 504 HANDLE_ATTR(InlineHint); 505 HANDLE_ATTR(ReturnsTwice); 506 HANDLE_ATTR(UWTable); 507 HANDLE_ATTR(NonLazyBind); 508 #undef HANDLE_ATTR 509 if (attrs & Attribute::StackAlignment) 510 Out << " | Attribute::constructStackAlignmentFromInt(" 511 << Attribute::getStackAlignmentFromAttrs(attrs) 512 << ")"; 513 attrs &= ~Attribute::StackAlignment; 514 assert(attrs == 0 && "Unhandled attribute!"); 515 Out << ";"; 516 nl(Out); 517 Out << "Attrs.push_back(PAWI);"; 518 nl(Out); 519 } 520 Out << name << "_PAL = AttrListPtr::get(Attrs);"; 521 nl(Out); 522 out(); nl(Out); 523 Out << '}'; nl(Out); 524 } 525 } 526 527 void CppWriter::printType(Type* Ty) { 528 // We don't print definitions for primitive types 529 if (Ty->isPrimitiveType() || Ty->isIntegerTy()) 530 return; 531 532 // If we already defined this type, we don't need to define it again. 533 if (DefinedTypes.find(Ty) != DefinedTypes.end()) 534 return; 535 536 // Everything below needs the name for the type so get it now. 537 std::string typeName(getCppName(Ty)); 538 539 // Print the type definition 540 switch (Ty->getTypeID()) { 541 case Type::FunctionTyID: { 542 FunctionType* FT = cast<FunctionType>(Ty); 543 Out << "std::vector<Type*>" << typeName << "_args;"; 544 nl(Out); 545 FunctionType::param_iterator PI = FT->param_begin(); 546 FunctionType::param_iterator PE = FT->param_end(); 547 for (; PI != PE; ++PI) { 548 Type* argTy = static_cast<Type*>(*PI); 549 printType(argTy); 550 std::string argName(getCppName(argTy)); 551 Out << typeName << "_args.push_back(" << argName; 552 Out << ");"; 553 nl(Out); 554 } 555 printType(FT->getReturnType()); 556 std::string retTypeName(getCppName(FT->getReturnType())); 557 Out << "FunctionType* " << typeName << " = FunctionType::get("; 558 in(); nl(Out) << "/*Result=*/" << retTypeName; 559 Out << ","; 560 nl(Out) << "/*Params=*/" << typeName << "_args,"; 561 nl(Out) << "/*isVarArg=*/" << (FT->isVarArg() ? "true" : "false") << ");"; 562 out(); 563 nl(Out); 564 break; 565 } 566 case Type::StructTyID: { 567 StructType* ST = cast<StructType>(Ty); 568 if (!ST->isLiteral()) { 569 Out << "StructType *" << typeName << " = mod->getTypeByName(\""; 570 printEscapedString(ST->getName()); 571 Out << "\");"; 572 nl(Out); 573 Out << "if (!" << typeName << ") {"; 574 nl(Out); 575 Out << typeName << " = "; 576 Out << "StructType::create(mod->getContext(), \""; 577 printEscapedString(ST->getName()); 578 Out << "\");"; 579 nl(Out); 580 Out << "}"; 581 nl(Out); 582 // Indicate that this type is now defined. 583 DefinedTypes.insert(Ty); 584 } 585 586 Out << "std::vector<Type*>" << typeName << "_fields;"; 587 nl(Out); 588 StructType::element_iterator EI = ST->element_begin(); 589 StructType::element_iterator EE = ST->element_end(); 590 for (; EI != EE; ++EI) { 591 Type* fieldTy = static_cast<Type*>(*EI); 592 printType(fieldTy); 593 std::string fieldName(getCppName(fieldTy)); 594 Out << typeName << "_fields.push_back(" << fieldName; 595 Out << ");"; 596 nl(Out); 597 } 598 599 if (ST->isLiteral()) { 600 Out << "StructType *" << typeName << " = "; 601 Out << "StructType::get(" << "mod->getContext(), "; 602 } else { 603 Out << "if (" << typeName << "->isOpaque()) {"; 604 nl(Out); 605 Out << typeName << "->setBody("; 606 } 607 608 Out << typeName << "_fields, /*isPacked=*/" 609 << (ST->isPacked() ? "true" : "false") << ");"; 610 nl(Out); 611 if (!ST->isLiteral()) { 612 Out << "}"; 613 nl(Out); 614 } 615 break; 616 } 617 case Type::ArrayTyID: { 618 ArrayType* AT = cast<ArrayType>(Ty); 619 Type* ET = AT->getElementType(); 620 printType(ET); 621 if (DefinedTypes.find(Ty) == DefinedTypes.end()) { 622 std::string elemName(getCppName(ET)); 623 Out << "ArrayType* " << typeName << " = ArrayType::get(" 624 << elemName 625 << ", " << utostr(AT->getNumElements()) << ");"; 626 nl(Out); 627 } 628 break; 629 } 630 case Type::PointerTyID: { 631 PointerType* PT = cast<PointerType>(Ty); 632 Type* ET = PT->getElementType(); 633 printType(ET); 634 if (DefinedTypes.find(Ty) == DefinedTypes.end()) { 635 std::string elemName(getCppName(ET)); 636 Out << "PointerType* " << typeName << " = PointerType::get(" 637 << elemName 638 << ", " << utostr(PT->getAddressSpace()) << ");"; 639 nl(Out); 640 } 641 break; 642 } 643 case Type::VectorTyID: { 644 VectorType* PT = cast<VectorType>(Ty); 645 Type* ET = PT->getElementType(); 646 printType(ET); 647 if (DefinedTypes.find(Ty) == DefinedTypes.end()) { 648 std::string elemName(getCppName(ET)); 649 Out << "VectorType* " << typeName << " = VectorType::get(" 650 << elemName 651 << ", " << utostr(PT->getNumElements()) << ");"; 652 nl(Out); 653 } 654 break; 655 } 656 default: 657 error("Invalid TypeID"); 658 } 659 660 // Indicate that this type is now defined. 661 DefinedTypes.insert(Ty); 662 663 // Finally, separate the type definition from other with a newline. 664 nl(Out); 665 } 666 667 void CppWriter::printTypes(const Module* M) { 668 // Add all of the global variables to the value table. 669 for (Module::const_global_iterator I = TheModule->global_begin(), 670 E = TheModule->global_end(); I != E; ++I) { 671 if (I->hasInitializer()) 672 printType(I->getInitializer()->getType()); 673 printType(I->getType()); 674 } 675 676 // Add all the functions to the table 677 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end(); 678 FI != FE; ++FI) { 679 printType(FI->getReturnType()); 680 printType(FI->getFunctionType()); 681 // Add all the function arguments 682 for (Function::const_arg_iterator AI = FI->arg_begin(), 683 AE = FI->arg_end(); AI != AE; ++AI) { 684 printType(AI->getType()); 685 } 686 687 // Add all of the basic blocks and instructions 688 for (Function::const_iterator BB = FI->begin(), 689 E = FI->end(); BB != E; ++BB) { 690 printType(BB->getType()); 691 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E; 692 ++I) { 693 printType(I->getType()); 694 for (unsigned i = 0; i < I->getNumOperands(); ++i) 695 printType(I->getOperand(i)->getType()); 696 } 697 } 698 } 699 } 700 701 702 // printConstant - Print out a constant pool entry... 703 void CppWriter::printConstant(const Constant *CV) { 704 // First, if the constant is actually a GlobalValue (variable or function) 705 // or its already in the constant list then we've printed it already and we 706 // can just return. 707 if (isa<GlobalValue>(CV) || ValueNames.find(CV) != ValueNames.end()) 708 return; 709 710 std::string constName(getCppName(CV)); 711 std::string typeName(getCppName(CV->getType())); 712 713 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) { 714 std::string constValue = CI->getValue().toString(10, true); 715 Out << "ConstantInt* " << constName 716 << " = ConstantInt::get(mod->getContext(), APInt(" 717 << cast<IntegerType>(CI->getType())->getBitWidth() 718 << ", StringRef(\"" << constValue << "\"), 10));"; 719 } else if (isa<ConstantAggregateZero>(CV)) { 720 Out << "ConstantAggregateZero* " << constName 721 << " = ConstantAggregateZero::get(" << typeName << ");"; 722 } else if (isa<ConstantPointerNull>(CV)) { 723 Out << "ConstantPointerNull* " << constName 724 << " = ConstantPointerNull::get(" << typeName << ");"; 725 } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) { 726 Out << "ConstantFP* " << constName << " = "; 727 printCFP(CFP); 728 Out << ";"; 729 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) { 730 Out << "std::vector<Constant*> " << constName << "_elems;"; 731 nl(Out); 732 unsigned N = CA->getNumOperands(); 733 for (unsigned i = 0; i < N; ++i) { 734 printConstant(CA->getOperand(i)); // recurse to print operands 735 Out << constName << "_elems.push_back(" 736 << getCppName(CA->getOperand(i)) << ");"; 737 nl(Out); 738 } 739 Out << "Constant* " << constName << " = ConstantArray::get(" 740 << typeName << ", " << constName << "_elems);"; 741 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) { 742 Out << "std::vector<Constant*> " << constName << "_fields;"; 743 nl(Out); 744 unsigned N = CS->getNumOperands(); 745 for (unsigned i = 0; i < N; i++) { 746 printConstant(CS->getOperand(i)); 747 Out << constName << "_fields.push_back(" 748 << getCppName(CS->getOperand(i)) << ");"; 749 nl(Out); 750 } 751 Out << "Constant* " << constName << " = ConstantStruct::get(" 752 << typeName << ", " << constName << "_fields);"; 753 } else if (const ConstantVector *CVec = dyn_cast<ConstantVector>(CV)) { 754 Out << "std::vector<Constant*> " << constName << "_elems;"; 755 nl(Out); 756 unsigned N = CVec->getNumOperands(); 757 for (unsigned i = 0; i < N; ++i) { 758 printConstant(CVec->getOperand(i)); 759 Out << constName << "_elems.push_back(" 760 << getCppName(CVec->getOperand(i)) << ");"; 761 nl(Out); 762 } 763 Out << "Constant* " << constName << " = ConstantVector::get(" 764 << typeName << ", " << constName << "_elems);"; 765 } else if (isa<UndefValue>(CV)) { 766 Out << "UndefValue* " << constName << " = UndefValue::get(" 767 << typeName << ");"; 768 } else if (const ConstantDataSequential *CDS = 769 dyn_cast<ConstantDataSequential>(CV)) { 770 if (CDS->isString()) { 771 Out << "Constant *" << constName << 772 " = ConstantDataArray::getString(mod->getContext(), \""; 773 StringRef Str = CDS->getAsString(); 774 bool nullTerminate = false; 775 if (Str.back() == 0) { 776 Str = Str.drop_back(); 777 nullTerminate = true; 778 } 779 printEscapedString(Str); 780 // Determine if we want null termination or not. 781 if (nullTerminate) 782 Out << "\", true);"; 783 else 784 Out << "\", false);";// No null terminator 785 } else { 786 // TODO: Could generate more efficient code generating CDS calls instead. 787 Out << "std::vector<Constant*> " << constName << "_elems;"; 788 nl(Out); 789 for (unsigned i = 0; i != CDS->getNumElements(); ++i) { 790 Constant *Elt = CDS->getElementAsConstant(i); 791 printConstant(Elt); 792 Out << constName << "_elems.push_back(" << getCppName(Elt) << ");"; 793 nl(Out); 794 } 795 Out << "Constant* " << constName; 796 797 if (isa<ArrayType>(CDS->getType())) 798 Out << " = ConstantArray::get("; 799 else 800 Out << " = ConstantVector::get("; 801 Out << typeName << ", " << constName << "_elems);"; 802 } 803 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) { 804 if (CE->getOpcode() == Instruction::GetElementPtr) { 805 Out << "std::vector<Constant*> " << constName << "_indices;"; 806 nl(Out); 807 printConstant(CE->getOperand(0)); 808 for (unsigned i = 1; i < CE->getNumOperands(); ++i ) { 809 printConstant(CE->getOperand(i)); 810 Out << constName << "_indices.push_back(" 811 << getCppName(CE->getOperand(i)) << ");"; 812 nl(Out); 813 } 814 Out << "Constant* " << constName 815 << " = ConstantExpr::getGetElementPtr(" 816 << getCppName(CE->getOperand(0)) << ", " 817 << constName << "_indices);"; 818 } else if (CE->isCast()) { 819 printConstant(CE->getOperand(0)); 820 Out << "Constant* " << constName << " = ConstantExpr::getCast("; 821 switch (CE->getOpcode()) { 822 default: llvm_unreachable("Invalid cast opcode"); 823 case Instruction::Trunc: Out << "Instruction::Trunc"; break; 824 case Instruction::ZExt: Out << "Instruction::ZExt"; break; 825 case Instruction::SExt: Out << "Instruction::SExt"; break; 826 case Instruction::FPTrunc: Out << "Instruction::FPTrunc"; break; 827 case Instruction::FPExt: Out << "Instruction::FPExt"; break; 828 case Instruction::FPToUI: Out << "Instruction::FPToUI"; break; 829 case Instruction::FPToSI: Out << "Instruction::FPToSI"; break; 830 case Instruction::UIToFP: Out << "Instruction::UIToFP"; break; 831 case Instruction::SIToFP: Out << "Instruction::SIToFP"; break; 832 case Instruction::PtrToInt: Out << "Instruction::PtrToInt"; break; 833 case Instruction::IntToPtr: Out << "Instruction::IntToPtr"; break; 834 case Instruction::BitCast: Out << "Instruction::BitCast"; break; 835 } 836 Out << ", " << getCppName(CE->getOperand(0)) << ", " 837 << getCppName(CE->getType()) << ");"; 838 } else { 839 unsigned N = CE->getNumOperands(); 840 for (unsigned i = 0; i < N; ++i ) { 841 printConstant(CE->getOperand(i)); 842 } 843 Out << "Constant* " << constName << " = ConstantExpr::"; 844 switch (CE->getOpcode()) { 845 case Instruction::Add: Out << "getAdd("; break; 846 case Instruction::FAdd: Out << "getFAdd("; break; 847 case Instruction::Sub: Out << "getSub("; break; 848 case Instruction::FSub: Out << "getFSub("; break; 849 case Instruction::Mul: Out << "getMul("; break; 850 case Instruction::FMul: Out << "getFMul("; break; 851 case Instruction::UDiv: Out << "getUDiv("; break; 852 case Instruction::SDiv: Out << "getSDiv("; break; 853 case Instruction::FDiv: Out << "getFDiv("; break; 854 case Instruction::URem: Out << "getURem("; break; 855 case Instruction::SRem: Out << "getSRem("; break; 856 case Instruction::FRem: Out << "getFRem("; break; 857 case Instruction::And: Out << "getAnd("; break; 858 case Instruction::Or: Out << "getOr("; break; 859 case Instruction::Xor: Out << "getXor("; break; 860 case Instruction::ICmp: 861 Out << "getICmp(ICmpInst::ICMP_"; 862 switch (CE->getPredicate()) { 863 case ICmpInst::ICMP_EQ: Out << "EQ"; break; 864 case ICmpInst::ICMP_NE: Out << "NE"; break; 865 case ICmpInst::ICMP_SLT: Out << "SLT"; break; 866 case ICmpInst::ICMP_ULT: Out << "ULT"; break; 867 case ICmpInst::ICMP_SGT: Out << "SGT"; break; 868 case ICmpInst::ICMP_UGT: Out << "UGT"; break; 869 case ICmpInst::ICMP_SLE: Out << "SLE"; break; 870 case ICmpInst::ICMP_ULE: Out << "ULE"; break; 871 case ICmpInst::ICMP_SGE: Out << "SGE"; break; 872 case ICmpInst::ICMP_UGE: Out << "UGE"; break; 873 default: error("Invalid ICmp Predicate"); 874 } 875 break; 876 case Instruction::FCmp: 877 Out << "getFCmp(FCmpInst::FCMP_"; 878 switch (CE->getPredicate()) { 879 case FCmpInst::FCMP_FALSE: Out << "FALSE"; break; 880 case FCmpInst::FCMP_ORD: Out << "ORD"; break; 881 case FCmpInst::FCMP_UNO: Out << "UNO"; break; 882 case FCmpInst::FCMP_OEQ: Out << "OEQ"; break; 883 case FCmpInst::FCMP_UEQ: Out << "UEQ"; break; 884 case FCmpInst::FCMP_ONE: Out << "ONE"; break; 885 case FCmpInst::FCMP_UNE: Out << "UNE"; break; 886 case FCmpInst::FCMP_OLT: Out << "OLT"; break; 887 case FCmpInst::FCMP_ULT: Out << "ULT"; break; 888 case FCmpInst::FCMP_OGT: Out << "OGT"; break; 889 case FCmpInst::FCMP_UGT: Out << "UGT"; break; 890 case FCmpInst::FCMP_OLE: Out << "OLE"; break; 891 case FCmpInst::FCMP_ULE: Out << "ULE"; break; 892 case FCmpInst::FCMP_OGE: Out << "OGE"; break; 893 case FCmpInst::FCMP_UGE: Out << "UGE"; break; 894 case FCmpInst::FCMP_TRUE: Out << "TRUE"; break; 895 default: error("Invalid FCmp Predicate"); 896 } 897 break; 898 case Instruction::Shl: Out << "getShl("; break; 899 case Instruction::LShr: Out << "getLShr("; break; 900 case Instruction::AShr: Out << "getAShr("; break; 901 case Instruction::Select: Out << "getSelect("; break; 902 case Instruction::ExtractElement: Out << "getExtractElement("; break; 903 case Instruction::InsertElement: Out << "getInsertElement("; break; 904 case Instruction::ShuffleVector: Out << "getShuffleVector("; break; 905 default: 906 error("Invalid constant expression"); 907 break; 908 } 909 Out << getCppName(CE->getOperand(0)); 910 for (unsigned i = 1; i < CE->getNumOperands(); ++i) 911 Out << ", " << getCppName(CE->getOperand(i)); 912 Out << ");"; 913 } 914 } else if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) { 915 Out << "Constant* " << constName << " = "; 916 Out << "BlockAddress::get(" << getOpName(BA->getBasicBlock()) << ");"; 917 } else { 918 error("Bad Constant"); 919 Out << "Constant* " << constName << " = 0; "; 920 } 921 nl(Out); 922 } 923 924 void CppWriter::printConstants(const Module* M) { 925 // Traverse all the global variables looking for constant initializers 926 for (Module::const_global_iterator I = TheModule->global_begin(), 927 E = TheModule->global_end(); I != E; ++I) 928 if (I->hasInitializer()) 929 printConstant(I->getInitializer()); 930 931 // Traverse the LLVM functions looking for constants 932 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end(); 933 FI != FE; ++FI) { 934 // Add all of the basic blocks and instructions 935 for (Function::const_iterator BB = FI->begin(), 936 E = FI->end(); BB != E; ++BB) { 937 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E; 938 ++I) { 939 for (unsigned i = 0; i < I->getNumOperands(); ++i) { 940 if (Constant* C = dyn_cast<Constant>(I->getOperand(i))) { 941 printConstant(C); 942 } 943 } 944 } 945 } 946 } 947 } 948 949 void CppWriter::printVariableUses(const GlobalVariable *GV) { 950 nl(Out) << "// Type Definitions"; 951 nl(Out); 952 printType(GV->getType()); 953 if (GV->hasInitializer()) { 954 const Constant *Init = GV->getInitializer(); 955 printType(Init->getType()); 956 if (const Function *F = dyn_cast<Function>(Init)) { 957 nl(Out)<< "/ Function Declarations"; nl(Out); 958 printFunctionHead(F); 959 } else if (const GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) { 960 nl(Out) << "// Global Variable Declarations"; nl(Out); 961 printVariableHead(gv); 962 963 nl(Out) << "// Global Variable Definitions"; nl(Out); 964 printVariableBody(gv); 965 } else { 966 nl(Out) << "// Constant Definitions"; nl(Out); 967 printConstant(Init); 968 } 969 } 970 } 971 972 void CppWriter::printVariableHead(const GlobalVariable *GV) { 973 nl(Out) << "GlobalVariable* " << getCppName(GV); 974 if (is_inline) { 975 Out << " = mod->getGlobalVariable(mod->getContext(), "; 976 printEscapedString(GV->getName()); 977 Out << ", " << getCppName(GV->getType()->getElementType()) << ",true)"; 978 nl(Out) << "if (!" << getCppName(GV) << ") {"; 979 in(); nl(Out) << getCppName(GV); 980 } 981 Out << " = new GlobalVariable(/*Module=*/*mod, "; 982 nl(Out) << "/*Type=*/"; 983 printCppName(GV->getType()->getElementType()); 984 Out << ","; 985 nl(Out) << "/*isConstant=*/" << (GV->isConstant()?"true":"false"); 986 Out << ","; 987 nl(Out) << "/*Linkage=*/"; 988 printLinkageType(GV->getLinkage()); 989 Out << ","; 990 nl(Out) << "/*Initializer=*/0, "; 991 if (GV->hasInitializer()) { 992 Out << "// has initializer, specified below"; 993 } 994 nl(Out) << "/*Name=*/\""; 995 printEscapedString(GV->getName()); 996 Out << "\");"; 997 nl(Out); 998 999 if (GV->hasSection()) { 1000 printCppName(GV); 1001 Out << "->setSection(\""; 1002 printEscapedString(GV->getSection()); 1003 Out << "\");"; 1004 nl(Out); 1005 } 1006 if (GV->getAlignment()) { 1007 printCppName(GV); 1008 Out << "->setAlignment(" << utostr(GV->getAlignment()) << ");"; 1009 nl(Out); 1010 } 1011 if (GV->getVisibility() != GlobalValue::DefaultVisibility) { 1012 printCppName(GV); 1013 Out << "->setVisibility("; 1014 printVisibilityType(GV->getVisibility()); 1015 Out << ");"; 1016 nl(Out); 1017 } 1018 if (GV->isThreadLocal()) { 1019 printCppName(GV); 1020 Out << "->setThreadLocalMode("; 1021 printThreadLocalMode(GV->getThreadLocalMode()); 1022 Out << ");"; 1023 nl(Out); 1024 } 1025 if (is_inline) { 1026 out(); Out << "}"; nl(Out); 1027 } 1028 } 1029 1030 void CppWriter::printVariableBody(const GlobalVariable *GV) { 1031 if (GV->hasInitializer()) { 1032 printCppName(GV); 1033 Out << "->setInitializer("; 1034 Out << getCppName(GV->getInitializer()) << ");"; 1035 nl(Out); 1036 } 1037 } 1038 1039 std::string CppWriter::getOpName(const Value* V) { 1040 if (!isa<Instruction>(V) || DefinedValues.find(V) != DefinedValues.end()) 1041 return getCppName(V); 1042 1043 // See if its alread in the map of forward references, if so just return the 1044 // name we already set up for it 1045 ForwardRefMap::const_iterator I = ForwardRefs.find(V); 1046 if (I != ForwardRefs.end()) 1047 return I->second; 1048 1049 // This is a new forward reference. Generate a unique name for it 1050 std::string result(std::string("fwdref_") + utostr(uniqueNum++)); 1051 1052 // Yes, this is a hack. An Argument is the smallest instantiable value that 1053 // we can make as a placeholder for the real value. We'll replace these 1054 // Argument instances later. 1055 Out << "Argument* " << result << " = new Argument(" 1056 << getCppName(V->getType()) << ");"; 1057 nl(Out); 1058 ForwardRefs[V] = result; 1059 return result; 1060 } 1061 1062 static StringRef ConvertAtomicOrdering(AtomicOrdering Ordering) { 1063 switch (Ordering) { 1064 case NotAtomic: return "NotAtomic"; 1065 case Unordered: return "Unordered"; 1066 case Monotonic: return "Monotonic"; 1067 case Acquire: return "Acquire"; 1068 case Release: return "Release"; 1069 case AcquireRelease: return "AcquireRelease"; 1070 case SequentiallyConsistent: return "SequentiallyConsistent"; 1071 } 1072 llvm_unreachable("Unknown ordering"); 1073 } 1074 1075 static StringRef ConvertAtomicSynchScope(SynchronizationScope SynchScope) { 1076 switch (SynchScope) { 1077 case SingleThread: return "SingleThread"; 1078 case CrossThread: return "CrossThread"; 1079 } 1080 llvm_unreachable("Unknown synch scope"); 1081 } 1082 1083 // printInstruction - This member is called for each Instruction in a function. 1084 void CppWriter::printInstruction(const Instruction *I, 1085 const std::string& bbname) { 1086 std::string iName(getCppName(I)); 1087 1088 // Before we emit this instruction, we need to take care of generating any 1089 // forward references. So, we get the names of all the operands in advance 1090 const unsigned Ops(I->getNumOperands()); 1091 std::string* opNames = new std::string[Ops]; 1092 for (unsigned i = 0; i < Ops; i++) 1093 opNames[i] = getOpName(I->getOperand(i)); 1094 1095 switch (I->getOpcode()) { 1096 default: 1097 error("Invalid instruction"); 1098 break; 1099 1100 case Instruction::Ret: { 1101 const ReturnInst* ret = cast<ReturnInst>(I); 1102 Out << "ReturnInst::Create(mod->getContext(), " 1103 << (ret->getReturnValue() ? opNames[0] + ", " : "") << bbname << ");"; 1104 break; 1105 } 1106 case Instruction::Br: { 1107 const BranchInst* br = cast<BranchInst>(I); 1108 Out << "BranchInst::Create(" ; 1109 if (br->getNumOperands() == 3) { 1110 Out << opNames[2] << ", " 1111 << opNames[1] << ", " 1112 << opNames[0] << ", "; 1113 1114 } else if (br->getNumOperands() == 1) { 1115 Out << opNames[0] << ", "; 1116 } else { 1117 error("Branch with 2 operands?"); 1118 } 1119 Out << bbname << ");"; 1120 break; 1121 } 1122 case Instruction::Switch: { 1123 const SwitchInst *SI = cast<SwitchInst>(I); 1124 Out << "SwitchInst* " << iName << " = SwitchInst::Create(" 1125 << getOpName(SI->getCondition()) << ", " 1126 << getOpName(SI->getDefaultDest()) << ", " 1127 << SI->getNumCases() << ", " << bbname << ");"; 1128 nl(Out); 1129 for (SwitchInst::ConstCaseIt i = SI->case_begin(), e = SI->case_end(); 1130 i != e; ++i) { 1131 const IntegersSubset CaseVal = i.getCaseValueEx(); 1132 const BasicBlock *BB = i.getCaseSuccessor(); 1133 Out << iName << "->addCase(" 1134 << getOpName(CaseVal) << ", " 1135 << getOpName(BB) << ");"; 1136 nl(Out); 1137 } 1138 break; 1139 } 1140 case Instruction::IndirectBr: { 1141 const IndirectBrInst *IBI = cast<IndirectBrInst>(I); 1142 Out << "IndirectBrInst *" << iName << " = IndirectBrInst::Create(" 1143 << opNames[0] << ", " << IBI->getNumDestinations() << ");"; 1144 nl(Out); 1145 for (unsigned i = 1; i != IBI->getNumOperands(); ++i) { 1146 Out << iName << "->addDestination(" << opNames[i] << ");"; 1147 nl(Out); 1148 } 1149 break; 1150 } 1151 case Instruction::Resume: { 1152 Out << "ResumeInst::Create(mod->getContext(), " << opNames[0] 1153 << ", " << bbname << ");"; 1154 break; 1155 } 1156 case Instruction::Invoke: { 1157 const InvokeInst* inv = cast<InvokeInst>(I); 1158 Out << "std::vector<Value*> " << iName << "_params;"; 1159 nl(Out); 1160 for (unsigned i = 0; i < inv->getNumArgOperands(); ++i) { 1161 Out << iName << "_params.push_back(" 1162 << getOpName(inv->getArgOperand(i)) << ");"; 1163 nl(Out); 1164 } 1165 // FIXME: This shouldn't use magic numbers -3, -2, and -1. 1166 Out << "InvokeInst *" << iName << " = InvokeInst::Create(" 1167 << getOpName(inv->getCalledFunction()) << ", " 1168 << getOpName(inv->getNormalDest()) << ", " 1169 << getOpName(inv->getUnwindDest()) << ", " 1170 << iName << "_params, \""; 1171 printEscapedString(inv->getName()); 1172 Out << "\", " << bbname << ");"; 1173 nl(Out) << iName << "->setCallingConv("; 1174 printCallingConv(inv->getCallingConv()); 1175 Out << ");"; 1176 printAttributes(inv->getAttributes(), iName); 1177 Out << iName << "->setAttributes(" << iName << "_PAL);"; 1178 nl(Out); 1179 break; 1180 } 1181 case Instruction::Unreachable: { 1182 Out << "new UnreachableInst(" 1183 << "mod->getContext(), " 1184 << bbname << ");"; 1185 break; 1186 } 1187 case Instruction::Add: 1188 case Instruction::FAdd: 1189 case Instruction::Sub: 1190 case Instruction::FSub: 1191 case Instruction::Mul: 1192 case Instruction::FMul: 1193 case Instruction::UDiv: 1194 case Instruction::SDiv: 1195 case Instruction::FDiv: 1196 case Instruction::URem: 1197 case Instruction::SRem: 1198 case Instruction::FRem: 1199 case Instruction::And: 1200 case Instruction::Or: 1201 case Instruction::Xor: 1202 case Instruction::Shl: 1203 case Instruction::LShr: 1204 case Instruction::AShr:{ 1205 Out << "BinaryOperator* " << iName << " = BinaryOperator::Create("; 1206 switch (I->getOpcode()) { 1207 case Instruction::Add: Out << "Instruction::Add"; break; 1208 case Instruction::FAdd: Out << "Instruction::FAdd"; break; 1209 case Instruction::Sub: Out << "Instruction::Sub"; break; 1210 case Instruction::FSub: Out << "Instruction::FSub"; break; 1211 case Instruction::Mul: Out << "Instruction::Mul"; break; 1212 case Instruction::FMul: Out << "Instruction::FMul"; break; 1213 case Instruction::UDiv:Out << "Instruction::UDiv"; break; 1214 case Instruction::SDiv:Out << "Instruction::SDiv"; break; 1215 case Instruction::FDiv:Out << "Instruction::FDiv"; break; 1216 case Instruction::URem:Out << "Instruction::URem"; break; 1217 case Instruction::SRem:Out << "Instruction::SRem"; break; 1218 case Instruction::FRem:Out << "Instruction::FRem"; break; 1219 case Instruction::And: Out << "Instruction::And"; break; 1220 case Instruction::Or: Out << "Instruction::Or"; break; 1221 case Instruction::Xor: Out << "Instruction::Xor"; break; 1222 case Instruction::Shl: Out << "Instruction::Shl"; break; 1223 case Instruction::LShr:Out << "Instruction::LShr"; break; 1224 case Instruction::AShr:Out << "Instruction::AShr"; break; 1225 default: Out << "Instruction::BadOpCode"; break; 1226 } 1227 Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; 1228 printEscapedString(I->getName()); 1229 Out << "\", " << bbname << ");"; 1230 break; 1231 } 1232 case Instruction::FCmp: { 1233 Out << "FCmpInst* " << iName << " = new FCmpInst(*" << bbname << ", "; 1234 switch (cast<FCmpInst>(I)->getPredicate()) { 1235 case FCmpInst::FCMP_FALSE: Out << "FCmpInst::FCMP_FALSE"; break; 1236 case FCmpInst::FCMP_OEQ : Out << "FCmpInst::FCMP_OEQ"; break; 1237 case FCmpInst::FCMP_OGT : Out << "FCmpInst::FCMP_OGT"; break; 1238 case FCmpInst::FCMP_OGE : Out << "FCmpInst::FCMP_OGE"; break; 1239 case FCmpInst::FCMP_OLT : Out << "FCmpInst::FCMP_OLT"; break; 1240 case FCmpInst::FCMP_OLE : Out << "FCmpInst::FCMP_OLE"; break; 1241 case FCmpInst::FCMP_ONE : Out << "FCmpInst::FCMP_ONE"; break; 1242 case FCmpInst::FCMP_ORD : Out << "FCmpInst::FCMP_ORD"; break; 1243 case FCmpInst::FCMP_UNO : Out << "FCmpInst::FCMP_UNO"; break; 1244 case FCmpInst::FCMP_UEQ : Out << "FCmpInst::FCMP_UEQ"; break; 1245 case FCmpInst::FCMP_UGT : Out << "FCmpInst::FCMP_UGT"; break; 1246 case FCmpInst::FCMP_UGE : Out << "FCmpInst::FCMP_UGE"; break; 1247 case FCmpInst::FCMP_ULT : Out << "FCmpInst::FCMP_ULT"; break; 1248 case FCmpInst::FCMP_ULE : Out << "FCmpInst::FCMP_ULE"; break; 1249 case FCmpInst::FCMP_UNE : Out << "FCmpInst::FCMP_UNE"; break; 1250 case FCmpInst::FCMP_TRUE : Out << "FCmpInst::FCMP_TRUE"; break; 1251 default: Out << "FCmpInst::BAD_ICMP_PREDICATE"; break; 1252 } 1253 Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; 1254 printEscapedString(I->getName()); 1255 Out << "\");"; 1256 break; 1257 } 1258 case Instruction::ICmp: { 1259 Out << "ICmpInst* " << iName << " = new ICmpInst(*" << bbname << ", "; 1260 switch (cast<ICmpInst>(I)->getPredicate()) { 1261 case ICmpInst::ICMP_EQ: Out << "ICmpInst::ICMP_EQ"; break; 1262 case ICmpInst::ICMP_NE: Out << "ICmpInst::ICMP_NE"; break; 1263 case ICmpInst::ICMP_ULE: Out << "ICmpInst::ICMP_ULE"; break; 1264 case ICmpInst::ICMP_SLE: Out << "ICmpInst::ICMP_SLE"; break; 1265 case ICmpInst::ICMP_UGE: Out << "ICmpInst::ICMP_UGE"; break; 1266 case ICmpInst::ICMP_SGE: Out << "ICmpInst::ICMP_SGE"; break; 1267 case ICmpInst::ICMP_ULT: Out << "ICmpInst::ICMP_ULT"; break; 1268 case ICmpInst::ICMP_SLT: Out << "ICmpInst::ICMP_SLT"; break; 1269 case ICmpInst::ICMP_UGT: Out << "ICmpInst::ICMP_UGT"; break; 1270 case ICmpInst::ICMP_SGT: Out << "ICmpInst::ICMP_SGT"; break; 1271 default: Out << "ICmpInst::BAD_ICMP_PREDICATE"; break; 1272 } 1273 Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; 1274 printEscapedString(I->getName()); 1275 Out << "\");"; 1276 break; 1277 } 1278 case Instruction::Alloca: { 1279 const AllocaInst* allocaI = cast<AllocaInst>(I); 1280 Out << "AllocaInst* " << iName << " = new AllocaInst(" 1281 << getCppName(allocaI->getAllocatedType()) << ", "; 1282 if (allocaI->isArrayAllocation()) 1283 Out << opNames[0] << ", "; 1284 Out << "\""; 1285 printEscapedString(allocaI->getName()); 1286 Out << "\", " << bbname << ");"; 1287 if (allocaI->getAlignment()) 1288 nl(Out) << iName << "->setAlignment(" 1289 << allocaI->getAlignment() << ");"; 1290 break; 1291 } 1292 case Instruction::Load: { 1293 const LoadInst* load = cast<LoadInst>(I); 1294 Out << "LoadInst* " << iName << " = new LoadInst(" 1295 << opNames[0] << ", \""; 1296 printEscapedString(load->getName()); 1297 Out << "\", " << (load->isVolatile() ? "true" : "false" ) 1298 << ", " << bbname << ");"; 1299 if (load->getAlignment()) 1300 nl(Out) << iName << "->setAlignment(" 1301 << load->getAlignment() << ");"; 1302 if (load->isAtomic()) { 1303 StringRef Ordering = ConvertAtomicOrdering(load->getOrdering()); 1304 StringRef CrossThread = ConvertAtomicSynchScope(load->getSynchScope()); 1305 nl(Out) << iName << "->setAtomic(" 1306 << Ordering << ", " << CrossThread << ");"; 1307 } 1308 break; 1309 } 1310 case Instruction::Store: { 1311 const StoreInst* store = cast<StoreInst>(I); 1312 Out << "StoreInst* " << iName << " = new StoreInst(" 1313 << opNames[0] << ", " 1314 << opNames[1] << ", " 1315 << (store->isVolatile() ? "true" : "false") 1316 << ", " << bbname << ");"; 1317 if (store->getAlignment()) 1318 nl(Out) << iName << "->setAlignment(" 1319 << store->getAlignment() << ");"; 1320 if (store->isAtomic()) { 1321 StringRef Ordering = ConvertAtomicOrdering(store->getOrdering()); 1322 StringRef CrossThread = ConvertAtomicSynchScope(store->getSynchScope()); 1323 nl(Out) << iName << "->setAtomic(" 1324 << Ordering << ", " << CrossThread << ");"; 1325 } 1326 break; 1327 } 1328 case Instruction::GetElementPtr: { 1329 const GetElementPtrInst* gep = cast<GetElementPtrInst>(I); 1330 if (gep->getNumOperands() <= 2) { 1331 Out << "GetElementPtrInst* " << iName << " = GetElementPtrInst::Create(" 1332 << opNames[0]; 1333 if (gep->getNumOperands() == 2) 1334 Out << ", " << opNames[1]; 1335 } else { 1336 Out << "std::vector<Value*> " << iName << "_indices;"; 1337 nl(Out); 1338 for (unsigned i = 1; i < gep->getNumOperands(); ++i ) { 1339 Out << iName << "_indices.push_back(" 1340 << opNames[i] << ");"; 1341 nl(Out); 1342 } 1343 Out << "Instruction* " << iName << " = GetElementPtrInst::Create(" 1344 << opNames[0] << ", " << iName << "_indices"; 1345 } 1346 Out << ", \""; 1347 printEscapedString(gep->getName()); 1348 Out << "\", " << bbname << ");"; 1349 break; 1350 } 1351 case Instruction::PHI: { 1352 const PHINode* phi = cast<PHINode>(I); 1353 1354 Out << "PHINode* " << iName << " = PHINode::Create(" 1355 << getCppName(phi->getType()) << ", " 1356 << phi->getNumIncomingValues() << ", \""; 1357 printEscapedString(phi->getName()); 1358 Out << "\", " << bbname << ");"; 1359 nl(Out); 1360 for (unsigned i = 0; i < phi->getNumIncomingValues(); ++i) { 1361 Out << iName << "->addIncoming(" 1362 << opNames[PHINode::getOperandNumForIncomingValue(i)] << ", " 1363 << getOpName(phi->getIncomingBlock(i)) << ");"; 1364 nl(Out); 1365 } 1366 break; 1367 } 1368 case Instruction::Trunc: 1369 case Instruction::ZExt: 1370 case Instruction::SExt: 1371 case Instruction::FPTrunc: 1372 case Instruction::FPExt: 1373 case Instruction::FPToUI: 1374 case Instruction::FPToSI: 1375 case Instruction::UIToFP: 1376 case Instruction::SIToFP: 1377 case Instruction::PtrToInt: 1378 case Instruction::IntToPtr: 1379 case Instruction::BitCast: { 1380 const CastInst* cst = cast<CastInst>(I); 1381 Out << "CastInst* " << iName << " = new "; 1382 switch (I->getOpcode()) { 1383 case Instruction::Trunc: Out << "TruncInst"; break; 1384 case Instruction::ZExt: Out << "ZExtInst"; break; 1385 case Instruction::SExt: Out << "SExtInst"; break; 1386 case Instruction::FPTrunc: Out << "FPTruncInst"; break; 1387 case Instruction::FPExt: Out << "FPExtInst"; break; 1388 case Instruction::FPToUI: Out << "FPToUIInst"; break; 1389 case Instruction::FPToSI: Out << "FPToSIInst"; break; 1390 case Instruction::UIToFP: Out << "UIToFPInst"; break; 1391 case Instruction::SIToFP: Out << "SIToFPInst"; break; 1392 case Instruction::PtrToInt: Out << "PtrToIntInst"; break; 1393 case Instruction::IntToPtr: Out << "IntToPtrInst"; break; 1394 case Instruction::BitCast: Out << "BitCastInst"; break; 1395 default: llvm_unreachable("Unreachable"); 1396 } 1397 Out << "(" << opNames[0] << ", " 1398 << getCppName(cst->getType()) << ", \""; 1399 printEscapedString(cst->getName()); 1400 Out << "\", " << bbname << ");"; 1401 break; 1402 } 1403 case Instruction::Call: { 1404 const CallInst* call = cast<CallInst>(I); 1405 if (const InlineAsm* ila = dyn_cast<InlineAsm>(call->getCalledValue())) { 1406 Out << "InlineAsm* " << getCppName(ila) << " = InlineAsm::get(" 1407 << getCppName(ila->getFunctionType()) << ", \"" 1408 << ila->getAsmString() << "\", \"" 1409 << ila->getConstraintString() << "\"," 1410 << (ila->hasSideEffects() ? "true" : "false") << ");"; 1411 nl(Out); 1412 } 1413 if (call->getNumArgOperands() > 1) { 1414 Out << "std::vector<Value*> " << iName << "_params;"; 1415 nl(Out); 1416 for (unsigned i = 0; i < call->getNumArgOperands(); ++i) { 1417 Out << iName << "_params.push_back(" << opNames[i] << ");"; 1418 nl(Out); 1419 } 1420 Out << "CallInst* " << iName << " = CallInst::Create(" 1421 << opNames[call->getNumArgOperands()] << ", " 1422 << iName << "_params, \""; 1423 } else if (call->getNumArgOperands() == 1) { 1424 Out << "CallInst* " << iName << " = CallInst::Create(" 1425 << opNames[call->getNumArgOperands()] << ", " << opNames[0] << ", \""; 1426 } else { 1427 Out << "CallInst* " << iName << " = CallInst::Create(" 1428 << opNames[call->getNumArgOperands()] << ", \""; 1429 } 1430 printEscapedString(call->getName()); 1431 Out << "\", " << bbname << ");"; 1432 nl(Out) << iName << "->setCallingConv("; 1433 printCallingConv(call->getCallingConv()); 1434 Out << ");"; 1435 nl(Out) << iName << "->setTailCall(" 1436 << (call->isTailCall() ? "true" : "false"); 1437 Out << ");"; 1438 nl(Out); 1439 printAttributes(call->getAttributes(), iName); 1440 Out << iName << "->setAttributes(" << iName << "_PAL);"; 1441 nl(Out); 1442 break; 1443 } 1444 case Instruction::Select: { 1445 const SelectInst* sel = cast<SelectInst>(I); 1446 Out << "SelectInst* " << getCppName(sel) << " = SelectInst::Create("; 1447 Out << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", \""; 1448 printEscapedString(sel->getName()); 1449 Out << "\", " << bbname << ");"; 1450 break; 1451 } 1452 case Instruction::UserOp1: 1453 /// FALL THROUGH 1454 case Instruction::UserOp2: { 1455 /// FIXME: What should be done here? 1456 break; 1457 } 1458 case Instruction::VAArg: { 1459 const VAArgInst* va = cast<VAArgInst>(I); 1460 Out << "VAArgInst* " << getCppName(va) << " = new VAArgInst(" 1461 << opNames[0] << ", " << getCppName(va->getType()) << ", \""; 1462 printEscapedString(va->getName()); 1463 Out << "\", " << bbname << ");"; 1464 break; 1465 } 1466 case Instruction::ExtractElement: { 1467 const ExtractElementInst* eei = cast<ExtractElementInst>(I); 1468 Out << "ExtractElementInst* " << getCppName(eei) 1469 << " = new ExtractElementInst(" << opNames[0] 1470 << ", " << opNames[1] << ", \""; 1471 printEscapedString(eei->getName()); 1472 Out << "\", " << bbname << ");"; 1473 break; 1474 } 1475 case Instruction::InsertElement: { 1476 const InsertElementInst* iei = cast<InsertElementInst>(I); 1477 Out << "InsertElementInst* " << getCppName(iei) 1478 << " = InsertElementInst::Create(" << opNames[0] 1479 << ", " << opNames[1] << ", " << opNames[2] << ", \""; 1480 printEscapedString(iei->getName()); 1481 Out << "\", " << bbname << ");"; 1482 break; 1483 } 1484 case Instruction::ShuffleVector: { 1485 const ShuffleVectorInst* svi = cast<ShuffleVectorInst>(I); 1486 Out << "ShuffleVectorInst* " << getCppName(svi) 1487 << " = new ShuffleVectorInst(" << opNames[0] 1488 << ", " << opNames[1] << ", " << opNames[2] << ", \""; 1489 printEscapedString(svi->getName()); 1490 Out << "\", " << bbname << ");"; 1491 break; 1492 } 1493 case Instruction::ExtractValue: { 1494 const ExtractValueInst *evi = cast<ExtractValueInst>(I); 1495 Out << "std::vector<unsigned> " << iName << "_indices;"; 1496 nl(Out); 1497 for (unsigned i = 0; i < evi->getNumIndices(); ++i) { 1498 Out << iName << "_indices.push_back(" 1499 << evi->idx_begin()[i] << ");"; 1500 nl(Out); 1501 } 1502 Out << "ExtractValueInst* " << getCppName(evi) 1503 << " = ExtractValueInst::Create(" << opNames[0] 1504 << ", " 1505 << iName << "_indices, \""; 1506 printEscapedString(evi->getName()); 1507 Out << "\", " << bbname << ");"; 1508 break; 1509 } 1510 case Instruction::InsertValue: { 1511 const InsertValueInst *ivi = cast<InsertValueInst>(I); 1512 Out << "std::vector<unsigned> " << iName << "_indices;"; 1513 nl(Out); 1514 for (unsigned i = 0; i < ivi->getNumIndices(); ++i) { 1515 Out << iName << "_indices.push_back(" 1516 << ivi->idx_begin()[i] << ");"; 1517 nl(Out); 1518 } 1519 Out << "InsertValueInst* " << getCppName(ivi) 1520 << " = InsertValueInst::Create(" << opNames[0] 1521 << ", " << opNames[1] << ", " 1522 << iName << "_indices, \""; 1523 printEscapedString(ivi->getName()); 1524 Out << "\", " << bbname << ");"; 1525 break; 1526 } 1527 case Instruction::Fence: { 1528 const FenceInst *fi = cast<FenceInst>(I); 1529 StringRef Ordering = ConvertAtomicOrdering(fi->getOrdering()); 1530 StringRef CrossThread = ConvertAtomicSynchScope(fi->getSynchScope()); 1531 Out << "FenceInst* " << iName 1532 << " = new FenceInst(mod->getContext(), " 1533 << Ordering << ", " << CrossThread << ", " << bbname 1534 << ");"; 1535 break; 1536 } 1537 case Instruction::AtomicCmpXchg: { 1538 const AtomicCmpXchgInst *cxi = cast<AtomicCmpXchgInst>(I); 1539 StringRef Ordering = ConvertAtomicOrdering(cxi->getOrdering()); 1540 StringRef CrossThread = ConvertAtomicSynchScope(cxi->getSynchScope()); 1541 Out << "AtomicCmpXchgInst* " << iName 1542 << " = new AtomicCmpXchgInst(" 1543 << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", " 1544 << Ordering << ", " << CrossThread << ", " << bbname 1545 << ");"; 1546 nl(Out) << iName << "->setName(\""; 1547 printEscapedString(cxi->getName()); 1548 Out << "\");"; 1549 break; 1550 } 1551 case Instruction::AtomicRMW: { 1552 const AtomicRMWInst *rmwi = cast<AtomicRMWInst>(I); 1553 StringRef Ordering = ConvertAtomicOrdering(rmwi->getOrdering()); 1554 StringRef CrossThread = ConvertAtomicSynchScope(rmwi->getSynchScope()); 1555 StringRef Operation; 1556 switch (rmwi->getOperation()) { 1557 case AtomicRMWInst::Xchg: Operation = "AtomicRMWInst::Xchg"; break; 1558 case AtomicRMWInst::Add: Operation = "AtomicRMWInst::Add"; break; 1559 case AtomicRMWInst::Sub: Operation = "AtomicRMWInst::Sub"; break; 1560 case AtomicRMWInst::And: Operation = "AtomicRMWInst::And"; break; 1561 case AtomicRMWInst::Nand: Operation = "AtomicRMWInst::Nand"; break; 1562 case AtomicRMWInst::Or: Operation = "AtomicRMWInst::Or"; break; 1563 case AtomicRMWInst::Xor: Operation = "AtomicRMWInst::Xor"; break; 1564 case AtomicRMWInst::Max: Operation = "AtomicRMWInst::Max"; break; 1565 case AtomicRMWInst::Min: Operation = "AtomicRMWInst::Min"; break; 1566 case AtomicRMWInst::UMax: Operation = "AtomicRMWInst::UMax"; break; 1567 case AtomicRMWInst::UMin: Operation = "AtomicRMWInst::UMin"; break; 1568 case AtomicRMWInst::BAD_BINOP: llvm_unreachable("Bad atomic operation"); 1569 } 1570 Out << "AtomicRMWInst* " << iName 1571 << " = new AtomicRMWInst(" 1572 << Operation << ", " 1573 << opNames[0] << ", " << opNames[1] << ", " 1574 << Ordering << ", " << CrossThread << ", " << bbname 1575 << ");"; 1576 nl(Out) << iName << "->setName(\""; 1577 printEscapedString(rmwi->getName()); 1578 Out << "\");"; 1579 break; 1580 } 1581 } 1582 DefinedValues.insert(I); 1583 nl(Out); 1584 delete [] opNames; 1585 } 1586 1587 // Print out the types, constants and declarations needed by one function 1588 void CppWriter::printFunctionUses(const Function* F) { 1589 nl(Out) << "// Type Definitions"; nl(Out); 1590 if (!is_inline) { 1591 // Print the function's return type 1592 printType(F->getReturnType()); 1593 1594 // Print the function's function type 1595 printType(F->getFunctionType()); 1596 1597 // Print the types of each of the function's arguments 1598 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); 1599 AI != AE; ++AI) { 1600 printType(AI->getType()); 1601 } 1602 } 1603 1604 // Print type definitions for every type referenced by an instruction and 1605 // make a note of any global values or constants that are referenced 1606 SmallPtrSet<GlobalValue*,64> gvs; 1607 SmallPtrSet<Constant*,64> consts; 1608 for (Function::const_iterator BB = F->begin(), BE = F->end(); 1609 BB != BE; ++BB){ 1610 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); 1611 I != E; ++I) { 1612 // Print the type of the instruction itself 1613 printType(I->getType()); 1614 1615 // Print the type of each of the instruction's operands 1616 for (unsigned i = 0; i < I->getNumOperands(); ++i) { 1617 Value* operand = I->getOperand(i); 1618 printType(operand->getType()); 1619 1620 // If the operand references a GVal or Constant, make a note of it 1621 if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) { 1622 gvs.insert(GV); 1623 if (GenerationType != GenFunction) 1624 if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) 1625 if (GVar->hasInitializer()) 1626 consts.insert(GVar->getInitializer()); 1627 } else if (Constant* C = dyn_cast<Constant>(operand)) { 1628 consts.insert(C); 1629 for (unsigned j = 0; j < C->getNumOperands(); ++j) { 1630 // If the operand references a GVal or Constant, make a note of it 1631 Value* operand = C->getOperand(j); 1632 printType(operand->getType()); 1633 if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) { 1634 gvs.insert(GV); 1635 if (GenerationType != GenFunction) 1636 if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) 1637 if (GVar->hasInitializer()) 1638 consts.insert(GVar->getInitializer()); 1639 } 1640 } 1641 } 1642 } 1643 } 1644 } 1645 1646 // Print the function declarations for any functions encountered 1647 nl(Out) << "// Function Declarations"; nl(Out); 1648 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); 1649 I != E; ++I) { 1650 if (Function* Fun = dyn_cast<Function>(*I)) { 1651 if (!is_inline || Fun != F) 1652 printFunctionHead(Fun); 1653 } 1654 } 1655 1656 // Print the global variable declarations for any variables encountered 1657 nl(Out) << "// Global Variable Declarations"; nl(Out); 1658 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); 1659 I != E; ++I) { 1660 if (GlobalVariable* F = dyn_cast<GlobalVariable>(*I)) 1661 printVariableHead(F); 1662 } 1663 1664 // Print the constants found 1665 nl(Out) << "// Constant Definitions"; nl(Out); 1666 for (SmallPtrSet<Constant*,64>::iterator I = consts.begin(), 1667 E = consts.end(); I != E; ++I) { 1668 printConstant(*I); 1669 } 1670 1671 // Process the global variables definitions now that all the constants have 1672 // been emitted. These definitions just couple the gvars with their constant 1673 // initializers. 1674 if (GenerationType != GenFunction) { 1675 nl(Out) << "// Global Variable Definitions"; nl(Out); 1676 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); 1677 I != E; ++I) { 1678 if (GlobalVariable* GV = dyn_cast<GlobalVariable>(*I)) 1679 printVariableBody(GV); 1680 } 1681 } 1682 } 1683 1684 void CppWriter::printFunctionHead(const Function* F) { 1685 nl(Out) << "Function* " << getCppName(F); 1686 Out << " = mod->getFunction(\""; 1687 printEscapedString(F->getName()); 1688 Out << "\");"; 1689 nl(Out) << "if (!" << getCppName(F) << ") {"; 1690 nl(Out) << getCppName(F); 1691 1692 Out<< " = Function::Create("; 1693 nl(Out,1) << "/*Type=*/" << getCppName(F->getFunctionType()) << ","; 1694 nl(Out) << "/*Linkage=*/"; 1695 printLinkageType(F->getLinkage()); 1696 Out << ","; 1697 nl(Out) << "/*Name=*/\""; 1698 printEscapedString(F->getName()); 1699 Out << "\", mod); " << (F->isDeclaration()? "// (external, no body)" : ""); 1700 nl(Out,-1); 1701 printCppName(F); 1702 Out << "->setCallingConv("; 1703 printCallingConv(F->getCallingConv()); 1704 Out << ");"; 1705 nl(Out); 1706 if (F->hasSection()) { 1707 printCppName(F); 1708 Out << "->setSection(\"" << F->getSection() << "\");"; 1709 nl(Out); 1710 } 1711 if (F->getAlignment()) { 1712 printCppName(F); 1713 Out << "->setAlignment(" << F->getAlignment() << ");"; 1714 nl(Out); 1715 } 1716 if (F->getVisibility() != GlobalValue::DefaultVisibility) { 1717 printCppName(F); 1718 Out << "->setVisibility("; 1719 printVisibilityType(F->getVisibility()); 1720 Out << ");"; 1721 nl(Out); 1722 } 1723 if (F->hasGC()) { 1724 printCppName(F); 1725 Out << "->setGC(\"" << F->getGC() << "\");"; 1726 nl(Out); 1727 } 1728 Out << "}"; 1729 nl(Out); 1730 printAttributes(F->getAttributes(), getCppName(F)); 1731 printCppName(F); 1732 Out << "->setAttributes(" << getCppName(F) << "_PAL);"; 1733 nl(Out); 1734 } 1735 1736 void CppWriter::printFunctionBody(const Function *F) { 1737 if (F->isDeclaration()) 1738 return; // external functions have no bodies. 1739 1740 // Clear the DefinedValues and ForwardRefs maps because we can't have 1741 // cross-function forward refs 1742 ForwardRefs.clear(); 1743 DefinedValues.clear(); 1744 1745 // Create all the argument values 1746 if (!is_inline) { 1747 if (!F->arg_empty()) { 1748 Out << "Function::arg_iterator args = " << getCppName(F) 1749 << "->arg_begin();"; 1750 nl(Out); 1751 } 1752 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); 1753 AI != AE; ++AI) { 1754 Out << "Value* " << getCppName(AI) << " = args++;"; 1755 nl(Out); 1756 if (AI->hasName()) { 1757 Out << getCppName(AI) << "->setName(\""; 1758 printEscapedString(AI->getName()); 1759 Out << "\");"; 1760 nl(Out); 1761 } 1762 } 1763 } 1764 1765 // Create all the basic blocks 1766 nl(Out); 1767 for (Function::const_iterator BI = F->begin(), BE = F->end(); 1768 BI != BE; ++BI) { 1769 std::string bbname(getCppName(BI)); 1770 Out << "BasicBlock* " << bbname << 1771 " = BasicBlock::Create(mod->getContext(), \""; 1772 if (BI->hasName()) 1773 printEscapedString(BI->getName()); 1774 Out << "\"," << getCppName(BI->getParent()) << ",0);"; 1775 nl(Out); 1776 } 1777 1778 // Output all of its basic blocks... for the function 1779 for (Function::const_iterator BI = F->begin(), BE = F->end(); 1780 BI != BE; ++BI) { 1781 std::string bbname(getCppName(BI)); 1782 nl(Out) << "// Block " << BI->getName() << " (" << bbname << ")"; 1783 nl(Out); 1784 1785 // Output all of the instructions in the basic block... 1786 for (BasicBlock::const_iterator I = BI->begin(), E = BI->end(); 1787 I != E; ++I) { 1788 printInstruction(I,bbname); 1789 } 1790 } 1791 1792 // Loop over the ForwardRefs and resolve them now that all instructions 1793 // are generated. 1794 if (!ForwardRefs.empty()) { 1795 nl(Out) << "// Resolve Forward References"; 1796 nl(Out); 1797 } 1798 1799 while (!ForwardRefs.empty()) { 1800 ForwardRefMap::iterator I = ForwardRefs.begin(); 1801 Out << I->second << "->replaceAllUsesWith(" 1802 << getCppName(I->first) << "); delete " << I->second << ";"; 1803 nl(Out); 1804 ForwardRefs.erase(I); 1805 } 1806 } 1807 1808 void CppWriter::printInline(const std::string& fname, 1809 const std::string& func) { 1810 const Function* F = TheModule->getFunction(func); 1811 if (!F) { 1812 error(std::string("Function '") + func + "' not found in input module"); 1813 return; 1814 } 1815 if (F->isDeclaration()) { 1816 error(std::string("Function '") + func + "' is external!"); 1817 return; 1818 } 1819 nl(Out) << "BasicBlock* " << fname << "(Module* mod, Function *" 1820 << getCppName(F); 1821 unsigned arg_count = 1; 1822 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); 1823 AI != AE; ++AI) { 1824 Out << ", Value* arg_" << arg_count; 1825 } 1826 Out << ") {"; 1827 nl(Out); 1828 is_inline = true; 1829 printFunctionUses(F); 1830 printFunctionBody(F); 1831 is_inline = false; 1832 Out << "return " << getCppName(F->begin()) << ";"; 1833 nl(Out) << "}"; 1834 nl(Out); 1835 } 1836 1837 void CppWriter::printModuleBody() { 1838 // Print out all the type definitions 1839 nl(Out) << "// Type Definitions"; nl(Out); 1840 printTypes(TheModule); 1841 1842 // Functions can call each other and global variables can reference them so 1843 // define all the functions first before emitting their function bodies. 1844 nl(Out) << "// Function Declarations"; nl(Out); 1845 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end(); 1846 I != E; ++I) 1847 printFunctionHead(I); 1848 1849 // Process the global variables declarations. We can't initialze them until 1850 // after the constants are printed so just print a header for each global 1851 nl(Out) << "// Global Variable Declarations\n"; nl(Out); 1852 for (Module::const_global_iterator I = TheModule->global_begin(), 1853 E = TheModule->global_end(); I != E; ++I) { 1854 printVariableHead(I); 1855 } 1856 1857 // Print out all the constants definitions. Constants don't recurse except 1858 // through GlobalValues. All GlobalValues have been declared at this point 1859 // so we can proceed to generate the constants. 1860 nl(Out) << "// Constant Definitions"; nl(Out); 1861 printConstants(TheModule); 1862 1863 // Process the global variables definitions now that all the constants have 1864 // been emitted. These definitions just couple the gvars with their constant 1865 // initializers. 1866 nl(Out) << "// Global Variable Definitions"; nl(Out); 1867 for (Module::const_global_iterator I = TheModule->global_begin(), 1868 E = TheModule->global_end(); I != E; ++I) { 1869 printVariableBody(I); 1870 } 1871 1872 // Finally, we can safely put out all of the function bodies. 1873 nl(Out) << "// Function Definitions"; nl(Out); 1874 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end(); 1875 I != E; ++I) { 1876 if (!I->isDeclaration()) { 1877 nl(Out) << "// Function: " << I->getName() << " (" << getCppName(I) 1878 << ")"; 1879 nl(Out) << "{"; 1880 nl(Out,1); 1881 printFunctionBody(I); 1882 nl(Out,-1) << "}"; 1883 nl(Out); 1884 } 1885 } 1886 } 1887 1888 void CppWriter::printProgram(const std::string& fname, 1889 const std::string& mName) { 1890 Out << "#include <llvm/LLVMContext.h>\n"; 1891 Out << "#include <llvm/Module.h>\n"; 1892 Out << "#include <llvm/DerivedTypes.h>\n"; 1893 Out << "#include <llvm/Constants.h>\n"; 1894 Out << "#include <llvm/GlobalVariable.h>\n"; 1895 Out << "#include <llvm/Function.h>\n"; 1896 Out << "#include <llvm/CallingConv.h>\n"; 1897 Out << "#include <llvm/BasicBlock.h>\n"; 1898 Out << "#include <llvm/Instructions.h>\n"; 1899 Out << "#include <llvm/InlineAsm.h>\n"; 1900 Out << "#include <llvm/Support/FormattedStream.h>\n"; 1901 Out << "#include <llvm/Support/MathExtras.h>\n"; 1902 Out << "#include <llvm/Pass.h>\n"; 1903 Out << "#include <llvm/PassManager.h>\n"; 1904 Out << "#include <llvm/ADT/SmallVector.h>\n"; 1905 Out << "#include <llvm/Analysis/Verifier.h>\n"; 1906 Out << "#include <llvm/Assembly/PrintModulePass.h>\n"; 1907 Out << "#include <algorithm>\n"; 1908 Out << "using namespace llvm;\n\n"; 1909 Out << "Module* " << fname << "();\n\n"; 1910 Out << "int main(int argc, char**argv) {\n"; 1911 Out << " Module* Mod = " << fname << "();\n"; 1912 Out << " verifyModule(*Mod, PrintMessageAction);\n"; 1913 Out << " PassManager PM;\n"; 1914 Out << " PM.add(createPrintModulePass(&outs()));\n"; 1915 Out << " PM.run(*Mod);\n"; 1916 Out << " return 0;\n"; 1917 Out << "}\n\n"; 1918 printModule(fname,mName); 1919 } 1920 1921 void CppWriter::printModule(const std::string& fname, 1922 const std::string& mName) { 1923 nl(Out) << "Module* " << fname << "() {"; 1924 nl(Out,1) << "// Module Construction"; 1925 nl(Out) << "Module* mod = new Module(\""; 1926 printEscapedString(mName); 1927 Out << "\", getGlobalContext());"; 1928 if (!TheModule->getTargetTriple().empty()) { 1929 nl(Out) << "mod->setDataLayout(\"" << TheModule->getDataLayout() << "\");"; 1930 } 1931 if (!TheModule->getTargetTriple().empty()) { 1932 nl(Out) << "mod->setTargetTriple(\"" << TheModule->getTargetTriple() 1933 << "\");"; 1934 } 1935 1936 if (!TheModule->getModuleInlineAsm().empty()) { 1937 nl(Out) << "mod->setModuleInlineAsm(\""; 1938 printEscapedString(TheModule->getModuleInlineAsm()); 1939 Out << "\");"; 1940 } 1941 nl(Out); 1942 1943 // Loop over the dependent libraries and emit them. 1944 Module::lib_iterator LI = TheModule->lib_begin(); 1945 Module::lib_iterator LE = TheModule->lib_end(); 1946 while (LI != LE) { 1947 Out << "mod->addLibrary(\"" << *LI << "\");"; 1948 nl(Out); 1949 ++LI; 1950 } 1951 printModuleBody(); 1952 nl(Out) << "return mod;"; 1953 nl(Out,-1) << "}"; 1954 nl(Out); 1955 } 1956 1957 void CppWriter::printContents(const std::string& fname, 1958 const std::string& mName) { 1959 Out << "\nModule* " << fname << "(Module *mod) {\n"; 1960 Out << "\nmod->setModuleIdentifier(\""; 1961 printEscapedString(mName); 1962 Out << "\");\n"; 1963 printModuleBody(); 1964 Out << "\nreturn mod;\n"; 1965 Out << "\n}\n"; 1966 } 1967 1968 void CppWriter::printFunction(const std::string& fname, 1969 const std::string& funcName) { 1970 const Function* F = TheModule->getFunction(funcName); 1971 if (!F) { 1972 error(std::string("Function '") + funcName + "' not found in input module"); 1973 return; 1974 } 1975 Out << "\nFunction* " << fname << "(Module *mod) {\n"; 1976 printFunctionUses(F); 1977 printFunctionHead(F); 1978 printFunctionBody(F); 1979 Out << "return " << getCppName(F) << ";\n"; 1980 Out << "}\n"; 1981 } 1982 1983 void CppWriter::printFunctions() { 1984 const Module::FunctionListType &funcs = TheModule->getFunctionList(); 1985 Module::const_iterator I = funcs.begin(); 1986 Module::const_iterator IE = funcs.end(); 1987 1988 for (; I != IE; ++I) { 1989 const Function &func = *I; 1990 if (!func.isDeclaration()) { 1991 std::string name("define_"); 1992 name += func.getName(); 1993 printFunction(name, func.getName()); 1994 } 1995 } 1996 } 1997 1998 void CppWriter::printVariable(const std::string& fname, 1999 const std::string& varName) { 2000 const GlobalVariable* GV = TheModule->getNamedGlobal(varName); 2001 2002 if (!GV) { 2003 error(std::string("Variable '") + varName + "' not found in input module"); 2004 return; 2005 } 2006 Out << "\nGlobalVariable* " << fname << "(Module *mod) {\n"; 2007 printVariableUses(GV); 2008 printVariableHead(GV); 2009 printVariableBody(GV); 2010 Out << "return " << getCppName(GV) << ";\n"; 2011 Out << "}\n"; 2012 } 2013 2014 void CppWriter::printType(const std::string &fname, 2015 const std::string &typeName) { 2016 Type* Ty = TheModule->getTypeByName(typeName); 2017 if (!Ty) { 2018 error(std::string("Type '") + typeName + "' not found in input module"); 2019 return; 2020 } 2021 Out << "\nType* " << fname << "(Module *mod) {\n"; 2022 printType(Ty); 2023 Out << "return " << getCppName(Ty) << ";\n"; 2024 Out << "}\n"; 2025 } 2026 2027 bool CppWriter::runOnModule(Module &M) { 2028 TheModule = &M; 2029 2030 // Emit a header 2031 Out << "// Generated by llvm2cpp - DO NOT MODIFY!\n\n"; 2032 2033 // Get the name of the function we're supposed to generate 2034 std::string fname = FuncName.getValue(); 2035 2036 // Get the name of the thing we are to generate 2037 std::string tgtname = NameToGenerate.getValue(); 2038 if (GenerationType == GenModule || 2039 GenerationType == GenContents || 2040 GenerationType == GenProgram || 2041 GenerationType == GenFunctions) { 2042 if (tgtname == "!bad!") { 2043 if (M.getModuleIdentifier() == "-") 2044 tgtname = "<stdin>"; 2045 else 2046 tgtname = M.getModuleIdentifier(); 2047 } 2048 } else if (tgtname == "!bad!") 2049 error("You must use the -for option with -gen-{function,variable,type}"); 2050 2051 switch (WhatToGenerate(GenerationType)) { 2052 case GenProgram: 2053 if (fname.empty()) 2054 fname = "makeLLVMModule"; 2055 printProgram(fname,tgtname); 2056 break; 2057 case GenModule: 2058 if (fname.empty()) 2059 fname = "makeLLVMModule"; 2060 printModule(fname,tgtname); 2061 break; 2062 case GenContents: 2063 if (fname.empty()) 2064 fname = "makeLLVMModuleContents"; 2065 printContents(fname,tgtname); 2066 break; 2067 case GenFunction: 2068 if (fname.empty()) 2069 fname = "makeLLVMFunction"; 2070 printFunction(fname,tgtname); 2071 break; 2072 case GenFunctions: 2073 printFunctions(); 2074 break; 2075 case GenInline: 2076 if (fname.empty()) 2077 fname = "makeLLVMInline"; 2078 printInline(fname,tgtname); 2079 break; 2080 case GenVariable: 2081 if (fname.empty()) 2082 fname = "makeLLVMVariable"; 2083 printVariable(fname,tgtname); 2084 break; 2085 case GenType: 2086 if (fname.empty()) 2087 fname = "makeLLVMType"; 2088 printType(fname,tgtname); 2089 break; 2090 } 2091 2092 return false; 2093 } 2094 2095 char CppWriter::ID = 0; 2096 2097 //===----------------------------------------------------------------------===// 2098 // External Interface declaration 2099 //===----------------------------------------------------------------------===// 2100 2101 bool CPPTargetMachine::addPassesToEmitFile(PassManagerBase &PM, 2102 formatted_raw_ostream &o, 2103 CodeGenFileType FileType, 2104 bool DisableVerify, 2105 AnalysisID StartAfter, 2106 AnalysisID StopAfter) { 2107 if (FileType != TargetMachine::CGFT_AssemblyFile) return true; 2108 PM.add(new CppWriter(o)); 2109 return false; 2110 } 2111