1 //===-- llvm/Module.h - C++ class to represent a VM module ------*- C++ -*-===// 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 /// @file 11 /// Module.h This file contains the declarations for the Module class. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_MODULE_H 16 #define LLVM_MODULE_H 17 18 #include "llvm/Function.h" 19 #include "llvm/GlobalVariable.h" 20 #include "llvm/GlobalAlias.h" 21 #include "llvm/Metadata.h" 22 #include "llvm/ADT/OwningPtr.h" 23 #include "llvm/Support/DataTypes.h" 24 #include <vector> 25 26 namespace llvm { 27 28 class FunctionType; 29 class GVMaterializer; 30 class LLVMContext; 31 class StructType; 32 template<typename T> struct DenseMapInfo; 33 template<typename KeyT, typename ValueT, typename KeyInfoT> class DenseMap; 34 35 template<> struct ilist_traits<Function> 36 : public SymbolTableListTraits<Function, Module> { 37 38 // createSentinel is used to get hold of the node that marks the end of the 39 // list... (same trick used here as in ilist_traits<Instruction>) 40 Function *createSentinel() const { 41 return static_cast<Function*>(&Sentinel); 42 } 43 static void destroySentinel(Function*) {} 44 45 Function *provideInitialHead() const { return createSentinel(); } 46 Function *ensureHead(Function*) const { return createSentinel(); } 47 static void noteHead(Function*, Function*) {} 48 49 private: 50 mutable ilist_node<Function> Sentinel; 51 }; 52 53 template<> struct ilist_traits<GlobalVariable> 54 : public SymbolTableListTraits<GlobalVariable, Module> { 55 // createSentinel is used to create a node that marks the end of the list. 56 GlobalVariable *createSentinel() const { 57 return static_cast<GlobalVariable*>(&Sentinel); 58 } 59 static void destroySentinel(GlobalVariable*) {} 60 61 GlobalVariable *provideInitialHead() const { return createSentinel(); } 62 GlobalVariable *ensureHead(GlobalVariable*) const { return createSentinel(); } 63 static void noteHead(GlobalVariable*, GlobalVariable*) {} 64 private: 65 mutable ilist_node<GlobalVariable> Sentinel; 66 }; 67 68 template<> struct ilist_traits<GlobalAlias> 69 : public SymbolTableListTraits<GlobalAlias, Module> { 70 // createSentinel is used to create a node that marks the end of the list. 71 GlobalAlias *createSentinel() const { 72 return static_cast<GlobalAlias*>(&Sentinel); 73 } 74 static void destroySentinel(GlobalAlias*) {} 75 76 GlobalAlias *provideInitialHead() const { return createSentinel(); } 77 GlobalAlias *ensureHead(GlobalAlias*) const { return createSentinel(); } 78 static void noteHead(GlobalAlias*, GlobalAlias*) {} 79 private: 80 mutable ilist_node<GlobalAlias> Sentinel; 81 }; 82 83 template<> struct ilist_traits<NamedMDNode> 84 : public ilist_default_traits<NamedMDNode> { 85 // createSentinel is used to get hold of a node that marks the end of 86 // the list... 87 NamedMDNode *createSentinel() const { 88 return static_cast<NamedMDNode*>(&Sentinel); 89 } 90 static void destroySentinel(NamedMDNode*) {} 91 92 NamedMDNode *provideInitialHead() const { return createSentinel(); } 93 NamedMDNode *ensureHead(NamedMDNode*) const { return createSentinel(); } 94 static void noteHead(NamedMDNode*, NamedMDNode*) {} 95 void addNodeToList(NamedMDNode *) {} 96 void removeNodeFromList(NamedMDNode *) {} 97 private: 98 mutable ilist_node<NamedMDNode> Sentinel; 99 }; 100 101 /// A Module instance is used to store all the information related to an 102 /// LLVM module. Modules are the top level container of all other LLVM 103 /// Intermediate Representation (IR) objects. Each module directly contains a 104 /// list of globals variables, a list of functions, a list of libraries (or 105 /// other modules) this module depends on, a symbol table, and various data 106 /// about the target's characteristics. 107 /// 108 /// A module maintains a GlobalValRefMap object that is used to hold all 109 /// constant references to global variables in the module. When a global 110 /// variable is destroyed, it should have no entries in the GlobalValueRefMap. 111 /// @brief The main container class for the LLVM Intermediate Representation. 112 class Module { 113 /// @name Types And Enumerations 114 /// @{ 115 public: 116 /// The type for the list of global variables. 117 typedef iplist<GlobalVariable> GlobalListType; 118 /// The type for the list of functions. 119 typedef iplist<Function> FunctionListType; 120 /// The type for the list of aliases. 121 typedef iplist<GlobalAlias> AliasListType; 122 /// The type for the list of named metadata. 123 typedef ilist<NamedMDNode> NamedMDListType; 124 125 /// The type for the list of dependent libraries. 126 typedef std::vector<std::string> LibraryListType; 127 128 /// The Global Variable iterator. 129 typedef GlobalListType::iterator global_iterator; 130 /// The Global Variable constant iterator. 131 typedef GlobalListType::const_iterator const_global_iterator; 132 133 /// The Function iterators. 134 typedef FunctionListType::iterator iterator; 135 /// The Function constant iterator 136 typedef FunctionListType::const_iterator const_iterator; 137 138 /// The Global Alias iterators. 139 typedef AliasListType::iterator alias_iterator; 140 /// The Global Alias constant iterator 141 typedef AliasListType::const_iterator const_alias_iterator; 142 143 /// The named metadata iterators. 144 typedef NamedMDListType::iterator named_metadata_iterator; 145 /// The named metadata constant interators. 146 typedef NamedMDListType::const_iterator const_named_metadata_iterator; 147 /// The Library list iterator. 148 typedef LibraryListType::const_iterator lib_iterator; 149 150 /// An enumeration for describing the endianess of the target machine. 151 enum Endianness { AnyEndianness, LittleEndian, BigEndian }; 152 153 /// An enumeration for describing the size of a pointer on the target machine. 154 enum PointerSize { AnyPointerSize, Pointer32, Pointer64 }; 155 156 /// An enumeration for the supported behaviors of module flags. The following 157 /// module flags behavior values are supported: 158 /// 159 /// Value Behavior 160 /// ----- -------- 161 /// 1 Error 162 /// Emits an error if two values disagree. 163 /// 164 /// 2 Warning 165 /// Emits a warning if two values disagree. 166 /// 167 /// 3 Require 168 /// Emits an error when the specified value is not present 169 /// or doesn't have the specified value. It is an error for 170 /// two (or more) llvm.module.flags with the same ID to have 171 /// the Require behavior but different values. There may be 172 /// multiple Require flags per ID. 173 /// 174 /// 4 Override 175 /// Uses the specified value if the two values disagree. It 176 /// is an error for two (or more) llvm.module.flags with the 177 /// same ID to have the Override behavior but different 178 /// values. 179 enum ModFlagBehavior { Error = 1, Warning = 2, Require = 3, Override = 4 }; 180 181 struct ModuleFlagEntry { 182 ModFlagBehavior Behavior; 183 MDString *Key; 184 Value *Val; 185 ModuleFlagEntry(ModFlagBehavior B, MDString *K, Value *V) 186 : Behavior(B), Key(K), Val(V) {} 187 }; 188 189 /// @} 190 /// @name Member Variables 191 /// @{ 192 private: 193 LLVMContext &Context; ///< The LLVMContext from which types and 194 ///< constants are allocated. 195 GlobalListType GlobalList; ///< The Global Variables in the module 196 FunctionListType FunctionList; ///< The Functions in the module 197 AliasListType AliasList; ///< The Aliases in the module 198 LibraryListType LibraryList; ///< The Libraries needed by the module 199 NamedMDListType NamedMDList; ///< The named metadata in the module 200 std::string GlobalScopeAsm; ///< Inline Asm at global scope. 201 ValueSymbolTable *ValSymTab; ///< Symbol table for values 202 OwningPtr<GVMaterializer> Materializer; ///< Used to materialize GlobalValues 203 std::string ModuleID; ///< Human readable identifier for the module 204 std::string TargetTriple; ///< Platform target triple Module compiled on 205 std::string DataLayout; ///< Target data description 206 void *NamedMDSymTab; ///< NamedMDNode names. 207 208 friend class Constant; 209 210 /// @} 211 /// @name Constructors 212 /// @{ 213 public: 214 /// The Module constructor. Note that there is no default constructor. You 215 /// must provide a name for the module upon construction. 216 explicit Module(StringRef ModuleID, LLVMContext& C); 217 /// The module destructor. This will dropAllReferences. 218 ~Module(); 219 220 /// @} 221 /// @name Module Level Accessors 222 /// @{ 223 224 /// Get the module identifier which is, essentially, the name of the module. 225 /// @returns the module identifier as a string 226 const std::string &getModuleIdentifier() const { return ModuleID; } 227 228 /// Get the data layout string for the module's target platform. This encodes 229 /// the type sizes and alignments expected by this module. 230 /// @returns the data layout as a string 231 const std::string &getDataLayout() const { return DataLayout; } 232 233 /// Get the target triple which is a string describing the target host. 234 /// @returns a string containing the target triple. 235 const std::string &getTargetTriple() const { return TargetTriple; } 236 237 /// Get the target endian information. 238 /// @returns Endianess - an enumeration for the endianess of the target 239 Endianness getEndianness() const; 240 241 /// Get the target pointer size. 242 /// @returns PointerSize - an enumeration for the size of the target's pointer 243 PointerSize getPointerSize() const; 244 245 /// Get the global data context. 246 /// @returns LLVMContext - a container for LLVM's global information 247 LLVMContext &getContext() const { return Context; } 248 249 /// Get any module-scope inline assembly blocks. 250 /// @returns a string containing the module-scope inline assembly blocks. 251 const std::string &getModuleInlineAsm() const { return GlobalScopeAsm; } 252 253 /// @} 254 /// @name Module Level Mutators 255 /// @{ 256 257 /// Set the module identifier. 258 void setModuleIdentifier(StringRef ID) { ModuleID = ID; } 259 260 /// Set the data layout 261 void setDataLayout(StringRef DL) { DataLayout = DL; } 262 263 /// Set the target triple. 264 void setTargetTriple(StringRef T) { TargetTriple = T; } 265 266 /// Set the module-scope inline assembly blocks. 267 void setModuleInlineAsm(StringRef Asm) { 268 GlobalScopeAsm = Asm; 269 if (!GlobalScopeAsm.empty() && 270 GlobalScopeAsm[GlobalScopeAsm.size()-1] != '\n') 271 GlobalScopeAsm += '\n'; 272 } 273 274 /// Append to the module-scope inline assembly blocks, automatically inserting 275 /// a separating newline if necessary. 276 void appendModuleInlineAsm(StringRef Asm) { 277 GlobalScopeAsm += Asm; 278 if (!GlobalScopeAsm.empty() && 279 GlobalScopeAsm[GlobalScopeAsm.size()-1] != '\n') 280 GlobalScopeAsm += '\n'; 281 } 282 283 /// @} 284 /// @name Generic Value Accessors 285 /// @{ 286 287 /// getNamedValue - Return the global value in the module with 288 /// the specified name, of arbitrary type. This method returns null 289 /// if a global with the specified name is not found. 290 GlobalValue *getNamedValue(StringRef Name) const; 291 292 /// getMDKindID - Return a unique non-zero ID for the specified metadata kind. 293 /// This ID is uniqued across modules in the current LLVMContext. 294 unsigned getMDKindID(StringRef Name) const; 295 296 /// getMDKindNames - Populate client supplied SmallVector with the name for 297 /// custom metadata IDs registered in this LLVMContext. 298 void getMDKindNames(SmallVectorImpl<StringRef> &Result) const; 299 300 301 typedef DenseMap<StructType*, unsigned, DenseMapInfo<StructType*> > 302 NumeredTypesMapTy; 303 304 /// getTypeByName - Return the type with the specified name, or null if there 305 /// is none by that name. 306 StructType *getTypeByName(StringRef Name) const; 307 308 /// @} 309 /// @name Function Accessors 310 /// @{ 311 312 /// getOrInsertFunction - Look up the specified function in the module symbol 313 /// table. Four possibilities: 314 /// 1. If it does not exist, add a prototype for the function and return it. 315 /// 2. If it exists, and has a local linkage, the existing function is 316 /// renamed and a new one is inserted. 317 /// 3. Otherwise, if the existing function has the correct prototype, return 318 /// the existing function. 319 /// 4. Finally, the function exists but has the wrong prototype: return the 320 /// function with a constantexpr cast to the right prototype. 321 Constant *getOrInsertFunction(StringRef Name, FunctionType *T, 322 AttrListPtr AttributeList); 323 324 Constant *getOrInsertFunction(StringRef Name, FunctionType *T); 325 326 /// getOrInsertFunction - Look up the specified function in the module symbol 327 /// table. If it does not exist, add a prototype for the function and return 328 /// it. This function guarantees to return a constant of pointer to the 329 /// specified function type or a ConstantExpr BitCast of that type if the 330 /// named function has a different type. This version of the method takes a 331 /// null terminated list of function arguments, which makes it easier for 332 /// clients to use. 333 Constant *getOrInsertFunction(StringRef Name, 334 AttrListPtr AttributeList, 335 Type *RetTy, ...) END_WITH_NULL; 336 337 /// getOrInsertFunction - Same as above, but without the attributes. 338 Constant *getOrInsertFunction(StringRef Name, Type *RetTy, ...) 339 END_WITH_NULL; 340 341 Constant *getOrInsertTargetIntrinsic(StringRef Name, 342 FunctionType *Ty, 343 AttrListPtr AttributeList); 344 345 /// getFunction - Look up the specified function in the module symbol table. 346 /// If it does not exist, return null. 347 Function *getFunction(StringRef Name) const; 348 349 /// @} 350 /// @name Global Variable Accessors 351 /// @{ 352 353 /// getGlobalVariable - Look up the specified global variable in the module 354 /// symbol table. If it does not exist, return null. If AllowInternal is set 355 /// to true, this function will return types that have InternalLinkage. By 356 /// default, these types are not returned. 357 GlobalVariable *getGlobalVariable(StringRef Name, 358 bool AllowInternal = false) const; 359 360 /// getNamedGlobal - Return the global variable in the module with the 361 /// specified name, of arbitrary type. This method returns null if a global 362 /// with the specified name is not found. 363 GlobalVariable *getNamedGlobal(StringRef Name) const { 364 return getGlobalVariable(Name, true); 365 } 366 367 /// getOrInsertGlobal - Look up the specified global in the module symbol 368 /// table. 369 /// 1. If it does not exist, add a declaration of the global and return it. 370 /// 2. Else, the global exists but has the wrong type: return the function 371 /// with a constantexpr cast to the right type. 372 /// 3. Finally, if the existing global is the correct declaration, return 373 /// the existing global. 374 Constant *getOrInsertGlobal(StringRef Name, Type *Ty); 375 376 /// @} 377 /// @name Global Alias Accessors 378 /// @{ 379 380 /// getNamedAlias - Return the global alias in the module with the 381 /// specified name, of arbitrary type. This method returns null if a global 382 /// with the specified name is not found. 383 GlobalAlias *getNamedAlias(StringRef Name) const; 384 385 /// @} 386 /// @name Named Metadata Accessors 387 /// @{ 388 389 /// getNamedMetadata - Return the NamedMDNode in the module with the 390 /// specified name. This method returns null if a NamedMDNode with the 391 /// specified name is not found. 392 NamedMDNode *getNamedMetadata(const Twine &Name) const; 393 394 /// getOrInsertNamedMetadata - Return the named MDNode in the module 395 /// with the specified name. This method returns a new NamedMDNode if a 396 /// NamedMDNode with the specified name is not found. 397 NamedMDNode *getOrInsertNamedMetadata(StringRef Name); 398 399 /// eraseNamedMetadata - Remove the given NamedMDNode from this module 400 /// and delete it. 401 void eraseNamedMetadata(NamedMDNode *NMD); 402 403 /// @} 404 /// @name Module Flags Accessors 405 /// @{ 406 407 /// getModuleFlagsMetadata - Returns the module flags in the provided vector. 408 void getModuleFlagsMetadata(SmallVectorImpl<ModuleFlagEntry> &Flags) const; 409 410 /// getModuleFlagsMetadata - Returns the NamedMDNode in the module that 411 /// represents module-level flags. This method returns null if there are no 412 /// module-level flags. 413 NamedMDNode *getModuleFlagsMetadata() const; 414 415 /// getOrInsertModuleFlagsMetadata - Returns the NamedMDNode in the module 416 /// that represents module-level flags. If module-level flags aren't found, 417 /// it creates the named metadata that contains them. 418 NamedMDNode *getOrInsertModuleFlagsMetadata(); 419 420 /// addModuleFlag - Add a module-level flag to the module-level flags 421 /// metadata. It will create the module-level flags named metadata if it 422 /// doesn't already exist. 423 void addModuleFlag(ModFlagBehavior Behavior, StringRef Key, Value *Val); 424 void addModuleFlag(ModFlagBehavior Behavior, StringRef Key, uint32_t Val); 425 void addModuleFlag(MDNode *Node); 426 427 /// @} 428 /// @name Materialization 429 /// @{ 430 431 /// setMaterializer - Sets the GVMaterializer to GVM. This module must not 432 /// yet have a Materializer. To reset the materializer for a module that 433 /// already has one, call MaterializeAllPermanently first. Destroying this 434 /// module will destroy its materializer without materializing any more 435 /// GlobalValues. Without destroying the Module, there is no way to detach or 436 /// destroy a materializer without materializing all the GVs it controls, to 437 /// avoid leaving orphan unmaterialized GVs. 438 void setMaterializer(GVMaterializer *GVM); 439 /// getMaterializer - Retrieves the GVMaterializer, if any, for this Module. 440 GVMaterializer *getMaterializer() const { return Materializer.get(); } 441 442 /// isMaterializable - True if the definition of GV has yet to be materialized 443 /// from the GVMaterializer. 444 bool isMaterializable(const GlobalValue *GV) const; 445 /// isDematerializable - Returns true if this GV was loaded from this Module's 446 /// GVMaterializer and the GVMaterializer knows how to dematerialize the GV. 447 bool isDematerializable(const GlobalValue *GV) const; 448 449 /// Materialize - Make sure the GlobalValue is fully read. If the module is 450 /// corrupt, this returns true and fills in the optional string with 451 /// information about the problem. If successful, this returns false. 452 bool Materialize(GlobalValue *GV, std::string *ErrInfo = 0); 453 /// Dematerialize - If the GlobalValue is read in, and if the GVMaterializer 454 /// supports it, release the memory for the function, and set it up to be 455 /// materialized lazily. If !isDematerializable(), this method is a noop. 456 void Dematerialize(GlobalValue *GV); 457 458 /// MaterializeAll - Make sure all GlobalValues in this Module are fully read. 459 /// If the module is corrupt, this returns true and fills in the optional 460 /// string with information about the problem. If successful, this returns 461 /// false. 462 bool MaterializeAll(std::string *ErrInfo = 0); 463 464 /// MaterializeAllPermanently - Make sure all GlobalValues in this Module are 465 /// fully read and clear the Materializer. If the module is corrupt, this 466 /// returns true, fills in the optional string with information about the 467 /// problem, and DOES NOT clear the old Materializer. If successful, this 468 /// returns false. 469 bool MaterializeAllPermanently(std::string *ErrInfo = 0); 470 471 /// @} 472 /// @name Direct access to the globals list, functions list, and symbol table 473 /// @{ 474 475 /// Get the Module's list of global variables (constant). 476 const GlobalListType &getGlobalList() const { return GlobalList; } 477 /// Get the Module's list of global variables. 478 GlobalListType &getGlobalList() { return GlobalList; } 479 static iplist<GlobalVariable> Module::*getSublistAccess(GlobalVariable*) { 480 return &Module::GlobalList; 481 } 482 /// Get the Module's list of functions (constant). 483 const FunctionListType &getFunctionList() const { return FunctionList; } 484 /// Get the Module's list of functions. 485 FunctionListType &getFunctionList() { return FunctionList; } 486 static iplist<Function> Module::*getSublistAccess(Function*) { 487 return &Module::FunctionList; 488 } 489 /// Get the Module's list of aliases (constant). 490 const AliasListType &getAliasList() const { return AliasList; } 491 /// Get the Module's list of aliases. 492 AliasListType &getAliasList() { return AliasList; } 493 static iplist<GlobalAlias> Module::*getSublistAccess(GlobalAlias*) { 494 return &Module::AliasList; 495 } 496 /// Get the Module's list of named metadata (constant). 497 const NamedMDListType &getNamedMDList() const { return NamedMDList; } 498 /// Get the Module's list of named metadata. 499 NamedMDListType &getNamedMDList() { return NamedMDList; } 500 static ilist<NamedMDNode> Module::*getSublistAccess(NamedMDNode*) { 501 return &Module::NamedMDList; 502 } 503 /// Get the symbol table of global variable and function identifiers 504 const ValueSymbolTable &getValueSymbolTable() const { return *ValSymTab; } 505 /// Get the Module's symbol table of global variable and function identifiers. 506 ValueSymbolTable &getValueSymbolTable() { return *ValSymTab; } 507 508 /// @} 509 /// @name Global Variable Iteration 510 /// @{ 511 512 global_iterator global_begin() { return GlobalList.begin(); } 513 const_global_iterator global_begin() const { return GlobalList.begin(); } 514 global_iterator global_end () { return GlobalList.end(); } 515 const_global_iterator global_end () const { return GlobalList.end(); } 516 bool global_empty() const { return GlobalList.empty(); } 517 518 /// @} 519 /// @name Function Iteration 520 /// @{ 521 522 iterator begin() { return FunctionList.begin(); } 523 const_iterator begin() const { return FunctionList.begin(); } 524 iterator end () { return FunctionList.end(); } 525 const_iterator end () const { return FunctionList.end(); } 526 size_t size() const { return FunctionList.size(); } 527 bool empty() const { return FunctionList.empty(); } 528 529 /// @} 530 /// @name Dependent Library Iteration 531 /// @{ 532 533 /// @brief Get a constant iterator to beginning of dependent library list. 534 inline lib_iterator lib_begin() const { return LibraryList.begin(); } 535 /// @brief Get a constant iterator to end of dependent library list. 536 inline lib_iterator lib_end() const { return LibraryList.end(); } 537 /// @brief Returns the number of items in the list of libraries. 538 inline size_t lib_size() const { return LibraryList.size(); } 539 /// @brief Add a library to the list of dependent libraries 540 void addLibrary(StringRef Lib); 541 /// @brief Remove a library from the list of dependent libraries 542 void removeLibrary(StringRef Lib); 543 /// @brief Get all the libraries 544 inline const LibraryListType& getLibraries() const { return LibraryList; } 545 546 /// @} 547 /// @name Alias Iteration 548 /// @{ 549 550 alias_iterator alias_begin() { return AliasList.begin(); } 551 const_alias_iterator alias_begin() const { return AliasList.begin(); } 552 alias_iterator alias_end () { return AliasList.end(); } 553 const_alias_iterator alias_end () const { return AliasList.end(); } 554 size_t alias_size () const { return AliasList.size(); } 555 bool alias_empty() const { return AliasList.empty(); } 556 557 558 /// @} 559 /// @name Named Metadata Iteration 560 /// @{ 561 562 named_metadata_iterator named_metadata_begin() { return NamedMDList.begin(); } 563 const_named_metadata_iterator named_metadata_begin() const { 564 return NamedMDList.begin(); 565 } 566 567 named_metadata_iterator named_metadata_end() { return NamedMDList.end(); } 568 const_named_metadata_iterator named_metadata_end() const { 569 return NamedMDList.end(); 570 } 571 572 size_t named_metadata_size() const { return NamedMDList.size(); } 573 bool named_metadata_empty() const { return NamedMDList.empty(); } 574 575 576 /// @} 577 /// @name Utility functions for printing and dumping Module objects 578 /// @{ 579 580 /// Print the module to an output stream with an optional 581 /// AssemblyAnnotationWriter. 582 void print(raw_ostream &OS, AssemblyAnnotationWriter *AAW) const; 583 584 /// Dump the module to stderr (for debugging). 585 void dump() const; 586 587 /// This function causes all the subinstructions to "let go" of all references 588 /// that they are maintaining. This allows one to 'delete' a whole class at 589 /// a time, even though there may be circular references... first all 590 /// references are dropped, and all use counts go to zero. Then everything 591 /// is delete'd for real. Note that no operations are valid on an object 592 /// that has "dropped all references", except operator delete. 593 void dropAllReferences(); 594 /// @} 595 }; 596 597 /// An raw_ostream inserter for modules. 598 inline raw_ostream &operator<<(raw_ostream &O, const Module &M) { 599 M.print(O, 0); 600 return O; 601 } 602 603 } // End llvm namespace 604 605 #endif 606