1 //===-- llvm/Module.h - C++ class to represent a VM module ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// Module.h This file contains the declarations for the Module class.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_IR_MODULE_H
16 #define LLVM_IR_MODULE_H
18 #include "llvm/ADT/iterator_range.h"
19 #include "llvm/IR/Comdat.h"
20 #include "llvm/IR/DataLayout.h"
21 #include "llvm/IR/Function.h"
22 #include "llvm/IR/GlobalAlias.h"
23 #include "llvm/IR/GlobalVariable.h"
24 #include "llvm/IR/Metadata.h"
25 #include "llvm/Support/CBindingWrapping.h"
26 #include "llvm/Support/CodeGen.h"
27 #include "llvm/Support/DataTypes.h"
28 #include <system_error>
34 class RandomNumberGenerator;
36 template<typename T> struct DenseMapInfo;
37 template<typename KeyT, typename ValueT, typename KeyInfoT> class DenseMap;
39 template<> struct ilist_traits<Function>
40 : public SymbolTableListTraits<Function, Module> {
42 // createSentinel is used to get hold of the node that marks the end of the
43 // list... (same trick used here as in ilist_traits<Instruction>)
44 Function *createSentinel() const {
45 return static_cast<Function*>(&Sentinel);
47 static void destroySentinel(Function*) {}
49 Function *provideInitialHead() const { return createSentinel(); }
50 Function *ensureHead(Function*) const { return createSentinel(); }
51 static void noteHead(Function*, Function*) {}
54 mutable ilist_node<Function> Sentinel;
57 template<> struct ilist_traits<GlobalVariable>
58 : public SymbolTableListTraits<GlobalVariable, Module> {
59 // createSentinel is used to create a node that marks the end of the list.
60 GlobalVariable *createSentinel() const {
61 return static_cast<GlobalVariable*>(&Sentinel);
63 static void destroySentinel(GlobalVariable*) {}
65 GlobalVariable *provideInitialHead() const { return createSentinel(); }
66 GlobalVariable *ensureHead(GlobalVariable*) const { return createSentinel(); }
67 static void noteHead(GlobalVariable*, GlobalVariable*) {}
69 mutable ilist_node<GlobalVariable> Sentinel;
72 template<> struct ilist_traits<GlobalAlias>
73 : public SymbolTableListTraits<GlobalAlias, Module> {
74 // createSentinel is used to create a node that marks the end of the list.
75 GlobalAlias *createSentinel() const {
76 return static_cast<GlobalAlias*>(&Sentinel);
78 static void destroySentinel(GlobalAlias*) {}
80 GlobalAlias *provideInitialHead() const { return createSentinel(); }
81 GlobalAlias *ensureHead(GlobalAlias*) const { return createSentinel(); }
82 static void noteHead(GlobalAlias*, GlobalAlias*) {}
84 mutable ilist_node<GlobalAlias> Sentinel;
87 template<> struct ilist_traits<NamedMDNode>
88 : public ilist_default_traits<NamedMDNode> {
89 // createSentinel is used to get hold of a node that marks the end of
91 NamedMDNode *createSentinel() const {
92 return static_cast<NamedMDNode*>(&Sentinel);
94 static void destroySentinel(NamedMDNode*) {}
96 NamedMDNode *provideInitialHead() const { return createSentinel(); }
97 NamedMDNode *ensureHead(NamedMDNode*) const { return createSentinel(); }
98 static void noteHead(NamedMDNode*, NamedMDNode*) {}
99 void addNodeToList(NamedMDNode *) {}
100 void removeNodeFromList(NamedMDNode *) {}
102 mutable ilist_node<NamedMDNode> Sentinel;
105 /// A Module instance is used to store all the information related to an
106 /// LLVM module. Modules are the top level container of all other LLVM
107 /// Intermediate Representation (IR) objects. Each module directly contains a
108 /// list of globals variables, a list of functions, a list of libraries (or
109 /// other modules) this module depends on, a symbol table, and various data
110 /// about the target's characteristics.
112 /// A module maintains a GlobalValRefMap object that is used to hold all
113 /// constant references to global variables in the module. When a global
114 /// variable is destroyed, it should have no entries in the GlobalValueRefMap.
115 /// @brief The main container class for the LLVM Intermediate Representation.
117 /// @name Types And Enumerations
120 /// The type for the list of global variables.
121 typedef iplist<GlobalVariable> GlobalListType;
122 /// The type for the list of functions.
123 typedef iplist<Function> FunctionListType;
124 /// The type for the list of aliases.
125 typedef iplist<GlobalAlias> AliasListType;
126 /// The type for the list of named metadata.
127 typedef ilist<NamedMDNode> NamedMDListType;
128 /// The type of the comdat "symbol" table.
129 typedef StringMap<Comdat> ComdatSymTabType;
131 /// The Global Variable iterator.
132 typedef GlobalListType::iterator global_iterator;
133 /// The Global Variable constant iterator.
134 typedef GlobalListType::const_iterator const_global_iterator;
136 /// The Function iterators.
137 typedef FunctionListType::iterator iterator;
138 /// The Function constant iterator
139 typedef FunctionListType::const_iterator const_iterator;
141 /// The Function reverse iterator.
142 typedef FunctionListType::reverse_iterator reverse_iterator;
143 /// The Function constant reverse iterator.
144 typedef FunctionListType::const_reverse_iterator const_reverse_iterator;
146 /// The Global Alias iterators.
147 typedef AliasListType::iterator alias_iterator;
148 /// The Global Alias constant iterator
149 typedef AliasListType::const_iterator const_alias_iterator;
151 /// The named metadata iterators.
152 typedef NamedMDListType::iterator named_metadata_iterator;
153 /// The named metadata constant iterators.
154 typedef NamedMDListType::const_iterator const_named_metadata_iterator;
156 /// This enumeration defines the supported behaviors of module flags.
157 enum ModFlagBehavior {
158 /// Emits an error if two values disagree, otherwise the resulting value is
159 /// that of the operands.
162 /// Emits a warning if two values disagree. The result value will be the
163 /// operand for the flag from the first module being linked.
166 /// Adds a requirement that another module flag be present and have a
167 /// specified value after linking is performed. The value must be a metadata
168 /// pair, where the first element of the pair is the ID of the module flag
169 /// to be restricted, and the second element of the pair is the value the
170 /// module flag should be restricted to. This behavior can be used to
171 /// restrict the allowable results (via triggering of an error) of linking
172 /// IDs with the **Override** behavior.
175 /// Uses the specified value, regardless of the behavior or value of the
176 /// other module. If both modules specify **Override**, but the values
177 /// differ, an error will be emitted.
180 /// Appends the two values, which are required to be metadata nodes.
183 /// Appends the two values, which are required to be metadata
184 /// nodes. However, duplicate entries in the second list are dropped
185 /// during the append operation.
189 ModFlagBehaviorFirstVal = Error,
190 ModFlagBehaviorLastVal = AppendUnique
193 /// Checks if Value represents a valid ModFlagBehavior, and stores the
194 /// converted result in MFB.
195 static bool isValidModFlagBehavior(Value *V, ModFlagBehavior &MFB);
197 struct ModuleFlagEntry {
198 ModFlagBehavior Behavior;
201 ModuleFlagEntry(ModFlagBehavior B, MDString *K, Value *V)
202 : Behavior(B), Key(K), Val(V) {}
206 /// @name Member Variables
209 LLVMContext &Context; ///< The LLVMContext from which types and
210 ///< constants are allocated.
211 GlobalListType GlobalList; ///< The Global Variables in the module
212 FunctionListType FunctionList; ///< The Functions in the module
213 AliasListType AliasList; ///< The Aliases in the module
214 NamedMDListType NamedMDList; ///< The named metadata in the module
215 std::string GlobalScopeAsm; ///< Inline Asm at global scope.
216 ValueSymbolTable *ValSymTab; ///< Symbol table for values
217 ComdatSymTabType ComdatSymTab; ///< Symbol table for COMDATs
218 std::unique_ptr<GVMaterializer>
219 Materializer; ///< Used to materialize GlobalValues
220 std::string ModuleID; ///< Human readable identifier for the module
221 std::string TargetTriple; ///< Platform target triple Module compiled on
222 ///< Format: (arch)(sub)-(vendor)-(sys0-(abi)
223 void *NamedMDSymTab; ///< NamedMDNode names.
224 // Allow lazy initialization in const method.
225 mutable RandomNumberGenerator *RNG; ///< The random number generator for this module.
227 // We need to keep the string because the C API expects us to own the string
229 // Since we have it, we also use an empty string to represent a module without
230 // a DataLayout. If it has a DataLayout, these variables are in sync and the
231 // string is just a cache of getDataLayout()->getStringRepresentation().
232 std::string DataLayoutStr;
235 friend class Constant;
238 /// @name Constructors
241 /// The Module constructor. Note that there is no default constructor. You
242 /// must provide a name for the module upon construction.
243 explicit Module(StringRef ModuleID, LLVMContext& C);
244 /// The module destructor. This will dropAllReferences.
248 /// @name Module Level Accessors
251 /// Get the module identifier which is, essentially, the name of the module.
252 /// @returns the module identifier as a string
253 const std::string &getModuleIdentifier() const { return ModuleID; }
255 /// Get the data layout string for the module's target platform. This is
256 /// equivalent to getDataLayout()->getStringRepresentation().
257 const std::string &getDataLayoutStr() const { return DataLayoutStr; }
259 /// Get the data layout for the module's target platform.
260 const DataLayout *getDataLayout() const;
262 /// Get the target triple which is a string describing the target host.
263 /// @returns a string containing the target triple.
264 const std::string &getTargetTriple() const { return TargetTriple; }
266 /// Get the global data context.
267 /// @returns LLVMContext - a container for LLVM's global information
268 LLVMContext &getContext() const { return Context; }
270 /// Get any module-scope inline assembly blocks.
271 /// @returns a string containing the module-scope inline assembly blocks.
272 const std::string &getModuleInlineAsm() const { return GlobalScopeAsm; }
274 /// Get the RandomNumberGenerator for this module. The RNG can be
275 /// seeded via -rng-seed=<uint64> and is salted with the ModuleID.
276 /// The returned RNG should not be shared across threads.
277 RandomNumberGenerator &getRNG() const;
280 /// @name Module Level Mutators
283 /// Set the module identifier.
284 void setModuleIdentifier(StringRef ID) { ModuleID = ID; }
286 /// Set the data layout
287 void setDataLayout(StringRef Desc);
288 void setDataLayout(const DataLayout *Other);
290 /// Set the target triple.
291 void setTargetTriple(StringRef T) { TargetTriple = T; }
293 /// Set the module-scope inline assembly blocks.
294 void setModuleInlineAsm(StringRef Asm) {
295 GlobalScopeAsm = Asm;
296 if (!GlobalScopeAsm.empty() &&
297 GlobalScopeAsm[GlobalScopeAsm.size()-1] != '\n')
298 GlobalScopeAsm += '\n';
301 /// Append to the module-scope inline assembly blocks, automatically inserting
302 /// a separating newline if necessary.
303 void appendModuleInlineAsm(StringRef Asm) {
304 GlobalScopeAsm += Asm;
305 if (!GlobalScopeAsm.empty() &&
306 GlobalScopeAsm[GlobalScopeAsm.size()-1] != '\n')
307 GlobalScopeAsm += '\n';
311 /// @name Generic Value Accessors
314 /// Return the global value in the module with the specified name, of
315 /// arbitrary type. This method returns null if a global with the specified
316 /// name is not found.
317 GlobalValue *getNamedValue(StringRef Name) const;
319 /// Return a unique non-zero ID for the specified metadata kind. This ID is
320 /// uniqued across modules in the current LLVMContext.
321 unsigned getMDKindID(StringRef Name) const;
323 /// Populate client supplied SmallVector with the name for custom metadata IDs
324 /// registered in this LLVMContext.
325 void getMDKindNames(SmallVectorImpl<StringRef> &Result) const;
327 /// Return the type with the specified name, or null if there is none by that
329 StructType *getTypeByName(StringRef Name) const;
331 std::vector<StructType *> getIdentifiedStructTypes() const;
334 /// @name Function Accessors
337 /// Look up the specified function in the module symbol table. Four
339 /// 1. If it does not exist, add a prototype for the function and return it.
340 /// 2. If it exists, and has a local linkage, the existing function is
341 /// renamed and a new one is inserted.
342 /// 3. Otherwise, if the existing function has the correct prototype, return
343 /// the existing function.
344 /// 4. Finally, the function exists but has the wrong prototype: return the
345 /// function with a constantexpr cast to the right prototype.
346 Constant *getOrInsertFunction(StringRef Name, FunctionType *T,
347 AttributeSet AttributeList);
349 Constant *getOrInsertFunction(StringRef Name, FunctionType *T);
351 /// Look up the specified function in the module symbol table. If it does not
352 /// exist, add a prototype for the function and return it. This function
353 /// guarantees to return a constant of pointer to the specified function type
354 /// or a ConstantExpr BitCast of that type if the named function has a
355 /// different type. This version of the method takes a null terminated list of
356 /// function arguments, which makes it easier for clients to use.
357 Constant *getOrInsertFunction(StringRef Name,
358 AttributeSet AttributeList,
359 Type *RetTy, ...) LLVM_END_WITH_NULL;
361 /// Same as above, but without the attributes.
362 Constant *getOrInsertFunction(StringRef Name, Type *RetTy, ...)
365 /// Look up the specified function in the module symbol table. If it does not
366 /// exist, return null.
367 Function *getFunction(StringRef Name) const;
370 /// @name Global Variable Accessors
373 /// Look up the specified global variable in the module symbol table. If it
374 /// does not exist, return null. If AllowInternal is set to true, this
375 /// function will return types that have InternalLinkage. By default, these
376 /// types are not returned.
377 GlobalVariable *getGlobalVariable(StringRef Name) const {
378 return getGlobalVariable(Name, false);
381 GlobalVariable *getGlobalVariable(StringRef Name, bool AllowInternal) const {
382 return const_cast<Module *>(this)->getGlobalVariable(Name, AllowInternal);
385 GlobalVariable *getGlobalVariable(StringRef Name, bool AllowInternal = false);
387 /// Return the global variable in the module with the specified name, of
388 /// arbitrary type. This method returns null if a global with the specified
389 /// name is not found.
390 GlobalVariable *getNamedGlobal(StringRef Name) {
391 return getGlobalVariable(Name, true);
393 const GlobalVariable *getNamedGlobal(StringRef Name) const {
394 return const_cast<Module *>(this)->getNamedGlobal(Name);
397 /// Look up the specified global in the module symbol table.
398 /// 1. If it does not exist, add a declaration of the global and return it.
399 /// 2. Else, the global exists but has the wrong type: return the function
400 /// with a constantexpr cast to the right type.
401 /// 3. Finally, if the existing global is the correct declaration, return
402 /// the existing global.
403 Constant *getOrInsertGlobal(StringRef Name, Type *Ty);
406 /// @name Global Alias Accessors
409 /// Return the global alias in the module with the specified name, of
410 /// arbitrary type. This method returns null if a global with the specified
411 /// name is not found.
412 GlobalAlias *getNamedAlias(StringRef Name) const;
415 /// @name Named Metadata Accessors
418 /// Return the first NamedMDNode in the module with the specified name. This
419 /// method returns null if a NamedMDNode with the specified name is not found.
420 NamedMDNode *getNamedMetadata(const Twine &Name) const;
422 /// Return the named MDNode in the module with the specified name. This method
423 /// returns a new NamedMDNode if a NamedMDNode with the specified name is not
425 NamedMDNode *getOrInsertNamedMetadata(StringRef Name);
427 /// Remove the given NamedMDNode from this module and delete it.
428 void eraseNamedMetadata(NamedMDNode *NMD);
431 /// @name Comdat Accessors
434 /// Return the Comdat in the module with the specified name. It is created
435 /// if it didn't already exist.
436 Comdat *getOrInsertComdat(StringRef Name);
439 /// @name Module Flags Accessors
442 /// Returns the module flags in the provided vector.
443 void getModuleFlagsMetadata(SmallVectorImpl<ModuleFlagEntry> &Flags) const;
445 /// Return the corresponding value if Key appears in module flags, otherwise
447 Value *getModuleFlag(StringRef Key) const;
449 /// Returns the NamedMDNode in the module that represents module-level flags.
450 /// This method returns null if there are no module-level flags.
451 NamedMDNode *getModuleFlagsMetadata() const;
453 /// Returns the NamedMDNode in the module that represents module-level flags.
454 /// If module-level flags aren't found, it creates the named metadata that
456 NamedMDNode *getOrInsertModuleFlagsMetadata();
458 /// Add a module-level flag to the module-level flags metadata. It will create
459 /// the module-level flags named metadata if it doesn't already exist.
460 void addModuleFlag(ModFlagBehavior Behavior, StringRef Key, Value *Val);
461 void addModuleFlag(ModFlagBehavior Behavior, StringRef Key, uint32_t Val);
462 void addModuleFlag(MDNode *Node);
465 /// @name Materialization
468 /// Sets the GVMaterializer to GVM. This module must not yet have a
469 /// Materializer. To reset the materializer for a module that already has one,
470 /// call MaterializeAllPermanently first. Destroying this module will destroy
471 /// its materializer without materializing any more GlobalValues. Without
472 /// destroying the Module, there is no way to detach or destroy a materializer
473 /// without materializing all the GVs it controls, to avoid leaving orphan
474 /// unmaterialized GVs.
475 void setMaterializer(GVMaterializer *GVM);
476 /// Retrieves the GVMaterializer, if any, for this Module.
477 GVMaterializer *getMaterializer() const { return Materializer.get(); }
479 /// Returns true if this GV was loaded from this Module's GVMaterializer and
480 /// the GVMaterializer knows how to dematerialize the GV.
481 bool isDematerializable(const GlobalValue *GV) const;
483 /// Make sure the GlobalValue is fully read. If the module is corrupt, this
484 /// returns true and fills in the optional string with information about the
485 /// problem. If successful, this returns false.
486 std::error_code materialize(GlobalValue *GV);
487 /// If the GlobalValue is read in, and if the GVMaterializer supports it,
488 /// release the memory for the function, and set it up to be materialized
489 /// lazily. If !isDematerializable(), this method is a no-op.
490 void Dematerialize(GlobalValue *GV);
492 /// Make sure all GlobalValues in this Module are fully read.
493 std::error_code materializeAll();
495 /// Make sure all GlobalValues in this Module are fully read and clear the
496 /// Materializer. If the module is corrupt, this DOES NOT clear the old
498 std::error_code materializeAllPermanently();
501 /// @name Direct access to the globals list, functions list, and symbol table
504 /// Get the Module's list of global variables (constant).
505 const GlobalListType &getGlobalList() const { return GlobalList; }
506 /// Get the Module's list of global variables.
507 GlobalListType &getGlobalList() { return GlobalList; }
508 static iplist<GlobalVariable> Module::*getSublistAccess(GlobalVariable*) {
509 return &Module::GlobalList;
511 /// Get the Module's list of functions (constant).
512 const FunctionListType &getFunctionList() const { return FunctionList; }
513 /// Get the Module's list of functions.
514 FunctionListType &getFunctionList() { return FunctionList; }
515 static iplist<Function> Module::*getSublistAccess(Function*) {
516 return &Module::FunctionList;
518 /// Get the Module's list of aliases (constant).
519 const AliasListType &getAliasList() const { return AliasList; }
520 /// Get the Module's list of aliases.
521 AliasListType &getAliasList() { return AliasList; }
522 static iplist<GlobalAlias> Module::*getSublistAccess(GlobalAlias*) {
523 return &Module::AliasList;
525 /// Get the Module's list of named metadata (constant).
526 const NamedMDListType &getNamedMDList() const { return NamedMDList; }
527 /// Get the Module's list of named metadata.
528 NamedMDListType &getNamedMDList() { return NamedMDList; }
529 static ilist<NamedMDNode> Module::*getSublistAccess(NamedMDNode*) {
530 return &Module::NamedMDList;
532 /// Get the symbol table of global variable and function identifiers
533 const ValueSymbolTable &getValueSymbolTable() const { return *ValSymTab; }
534 /// Get the Module's symbol table of global variable and function identifiers.
535 ValueSymbolTable &getValueSymbolTable() { return *ValSymTab; }
536 /// Get the Module's symbol table for COMDATs (constant).
537 const ComdatSymTabType &getComdatSymbolTable() const { return ComdatSymTab; }
538 /// Get the Module's symbol table for COMDATs.
539 ComdatSymTabType &getComdatSymbolTable() { return ComdatSymTab; }
542 /// @name Global Variable Iteration
545 global_iterator global_begin() { return GlobalList.begin(); }
546 const_global_iterator global_begin() const { return GlobalList.begin(); }
547 global_iterator global_end () { return GlobalList.end(); }
548 const_global_iterator global_end () const { return GlobalList.end(); }
549 bool global_empty() const { return GlobalList.empty(); }
551 iterator_range<global_iterator> globals() {
552 return iterator_range<global_iterator>(global_begin(), global_end());
554 iterator_range<const_global_iterator> globals() const {
555 return iterator_range<const_global_iterator>(global_begin(), global_end());
559 /// @name Function Iteration
562 iterator begin() { return FunctionList.begin(); }
563 const_iterator begin() const { return FunctionList.begin(); }
564 iterator end () { return FunctionList.end(); }
565 const_iterator end () const { return FunctionList.end(); }
566 reverse_iterator rbegin() { return FunctionList.rbegin(); }
567 const_reverse_iterator rbegin() const{ return FunctionList.rbegin(); }
568 reverse_iterator rend() { return FunctionList.rend(); }
569 const_reverse_iterator rend() const { return FunctionList.rend(); }
570 size_t size() const { return FunctionList.size(); }
571 bool empty() const { return FunctionList.empty(); }
573 iterator_range<iterator> functions() {
574 return iterator_range<iterator>(begin(), end());
576 iterator_range<const_iterator> functions() const {
577 return iterator_range<const_iterator>(begin(), end());
581 /// @name Alias Iteration
584 alias_iterator alias_begin() { return AliasList.begin(); }
585 const_alias_iterator alias_begin() const { return AliasList.begin(); }
586 alias_iterator alias_end () { return AliasList.end(); }
587 const_alias_iterator alias_end () const { return AliasList.end(); }
588 size_t alias_size () const { return AliasList.size(); }
589 bool alias_empty() const { return AliasList.empty(); }
591 iterator_range<alias_iterator> aliases() {
592 return iterator_range<alias_iterator>(alias_begin(), alias_end());
594 iterator_range<const_alias_iterator> aliases() const {
595 return iterator_range<const_alias_iterator>(alias_begin(), alias_end());
599 /// @name Named Metadata Iteration
602 named_metadata_iterator named_metadata_begin() { return NamedMDList.begin(); }
603 const_named_metadata_iterator named_metadata_begin() const {
604 return NamedMDList.begin();
607 named_metadata_iterator named_metadata_end() { return NamedMDList.end(); }
608 const_named_metadata_iterator named_metadata_end() const {
609 return NamedMDList.end();
612 size_t named_metadata_size() const { return NamedMDList.size(); }
613 bool named_metadata_empty() const { return NamedMDList.empty(); }
615 iterator_range<named_metadata_iterator> named_metadata() {
616 return iterator_range<named_metadata_iterator>(named_metadata_begin(),
617 named_metadata_end());
619 iterator_range<const_named_metadata_iterator> named_metadata() const {
620 return iterator_range<const_named_metadata_iterator>(named_metadata_begin(),
621 named_metadata_end());
625 /// @name Utility functions for printing and dumping Module objects
628 /// Print the module to an output stream with an optional
629 /// AssemblyAnnotationWriter.
630 void print(raw_ostream &OS, AssemblyAnnotationWriter *AAW) const;
632 /// Dump the module to stderr (for debugging).
635 /// This function causes all the subinstructions to "let go" of all references
636 /// that they are maintaining. This allows one to 'delete' a whole class at
637 /// a time, even though there may be circular references... first all
638 /// references are dropped, and all use counts go to zero. Then everything
639 /// is delete'd for real. Note that no operations are valid on an object
640 /// that has "dropped all references", except operator delete.
641 void dropAllReferences();
644 /// @name Utility functions for querying Debug information.
647 /// \brief Returns the Dwarf Version by checking module flags.
648 unsigned getDwarfVersion() const;
651 /// @name Utility functions for querying and setting PIC level
654 /// \brief Returns the PIC level (small or large model)
655 PICLevel::Level getPICLevel() const;
657 /// \brief Set the PIC level (small or large model)
658 void setPICLevel(PICLevel::Level PL);
662 /// An raw_ostream inserter for modules.
663 inline raw_ostream &operator<<(raw_ostream &O, const Module &M) {
668 // Create wrappers for C Binding types (see CBindingWrapping.h).
669 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(Module, LLVMModuleRef)
671 /* LLVMModuleProviderRef exists for historical reasons, but now just holds a
674 inline Module *unwrap(LLVMModuleProviderRef MP) {
675 return reinterpret_cast<Module*>(MP);
678 } // End llvm namespace