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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1503 91177308-0d34-0410-b5e6-96231b3b80d8
127 lines
5.8 KiB
C++
127 lines
5.8 KiB
C++
//===-- llvm/Module.h - C++ class to represent a VM module -------*- C++ -*--=//
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//
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// This file contains the declarations for the Module class that is used to
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// maintain all the information related to a VM module.
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//
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// A module also maintains a GlobalValRefMap object that is used to hold all
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// constant references to global variables in the module. When a global
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// variable is destroyed, it should have no entries in the GlobalValueRefMap.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MODULE_H
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#define LLVM_MODULE_H
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#include "llvm/Value.h"
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#include "llvm/SymTabValue.h"
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#include "llvm/ValueHolder.h"
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class Method;
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class GlobalVariable;
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class GlobalValueRefMap; // Used by ConstantVals.cpp
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class ConstantPointerRef;
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class Module : public Value, public SymTabValue {
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public:
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typedef ValueHolder<GlobalVariable, Module, Module> GlobalListType;
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typedef ValueHolder<Method, Module, Module> MethodListType;
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// Global Variable iterators...
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typedef GlobalListType::iterator giterator;
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typedef GlobalListType::const_iterator const_giterator;
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typedef std::reverse_iterator<giterator> reverse_giterator;
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typedef std::reverse_iterator<const_giterator> const_reverse_giterator;
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// Method iterators...
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typedef MethodListType::iterator iterator;
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typedef MethodListType::const_iterator const_iterator;
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typedef std::reverse_iterator<iterator> reverse_iterator;
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typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
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private:
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GlobalListType GlobalList; // The Global Variables
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MethodListType MethodList; // The Methods
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GlobalValueRefMap *GVRefMap;
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// Accessor for the underlying GlobalValRefMap... only through the
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// ConstantPointerRef class...
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friend class ConstantPointerRef;
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void mutateConstantPointerRef(GlobalValue *OldGV, GlobalValue *NewGV);
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ConstantPointerRef *getConstantPointerRef(GlobalValue *GV);
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public:
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Module();
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~Module();
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// reduceApply - Apply the specified function to all of the methods in this
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// module. The result values are or'd together and the result is returned.
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//
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bool reduceApply(bool (*Func)(GlobalVariable*));
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bool reduceApply(bool (*Func)(const GlobalVariable*)) const;
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bool reduceApply(bool (*Func)(Method*));
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bool reduceApply(bool (*Func)(const Method*)) const;
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// Get the underlying elements of the Module...
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inline const GlobalListType &getGlobalList() const { return GlobalList; }
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inline GlobalListType &getGlobalList() { return GlobalList; }
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inline const MethodListType &getMethodList() const { return MethodList; }
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inline MethodListType &getMethodList() { return MethodList; }
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//===--------------------------------------------------------------------===//
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// Module iterator forwarding functions
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//
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inline giterator gbegin() { return GlobalList.begin(); }
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inline const_giterator gbegin() const { return GlobalList.begin(); }
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inline giterator gend () { return GlobalList.end(); }
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inline const_giterator gend () const { return GlobalList.end(); }
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inline reverse_giterator grbegin() { return GlobalList.rbegin(); }
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inline const_reverse_giterator grbegin() const { return GlobalList.rbegin(); }
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inline reverse_giterator grend () { return GlobalList.rend(); }
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inline const_reverse_giterator grend () const { return GlobalList.rend(); }
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inline unsigned gsize() const { return GlobalList.size(); }
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inline bool gempty() const { return GlobalList.empty(); }
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inline const GlobalVariable *gfront() const { return GlobalList.front(); }
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inline GlobalVariable *gfront() { return GlobalList.front(); }
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inline const GlobalVariable *gback() const { return GlobalList.back(); }
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inline GlobalVariable *gback() { return GlobalList.back(); }
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inline iterator begin() { return MethodList.begin(); }
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inline const_iterator begin() const { return MethodList.begin(); }
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inline iterator end () { return MethodList.end(); }
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inline const_iterator end () const { return MethodList.end(); }
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inline reverse_iterator rbegin() { return MethodList.rbegin(); }
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inline const_reverse_iterator rbegin() const { return MethodList.rbegin(); }
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inline reverse_iterator rend () { return MethodList.rend(); }
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inline const_reverse_iterator rend () const { return MethodList.rend(); }
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inline unsigned size() const { return MethodList.size(); }
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inline bool empty() const { return MethodList.empty(); }
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inline const Method *front() const { return MethodList.front(); }
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inline Method *front() { return MethodList.front(); }
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inline const Method *back() const { return MethodList.back(); }
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inline Method *back() { return MethodList.back(); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const Module *T) { return true; }
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static inline bool classof(const Value *V) {
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return V->getValueType() == Value::ModuleVal;
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}
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// dropAllReferences() - This function causes all the subinstructions to "let
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// go" of all references that they are maintaining. This allows one to
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// 'delete' a whole class at a time, even though there may be circular
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// references... first all references are dropped, and all use counts go to
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// zero. Then everything is delete'd for real. Note that no operations are
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// valid on an object that has "dropped all references", except operator
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// delete.
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//
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void dropAllReferences();
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};
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#endif
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