-//===-- llvm/User.h - User class definition ----------------------*- C++ -*--=//
+//===-- llvm/User.h - User class definition ---------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This class defines the interface that one who 'use's a Value must implement.
// Each instance of the Value class keeps track of what User's have handles
#include "llvm/Value.h"
#include <vector>
+namespace llvm {
+
class User : public Value {
User(const User &); // Do not implement
protected:
- vector<Use> Operands;
+ std::vector<Use> Operands;
public:
- User(const Type *Ty, ValueTy vty, const string &name = "");
- virtual ~User() { dropAllReferences(); }
+ User(const Type *Ty, unsigned vty, const std::string &name = "")
+ : Value(Ty, vty, name) {}
inline Value *getOperand(unsigned i) {
assert(i < Operands.size() && "getOperand() out of range!");
- return Operands[i];
+ return Operands[i];
}
inline const Value *getOperand(unsigned i) const {
assert(i < Operands.size() && "getOperand() const out of range!");
- return Operands[i];
+ return Operands[i];
}
inline void setOperand(unsigned i, Value *Val) {
assert(i < Operands.size() && "setOperand() out of range!");
Operands[i] = Val;
}
- inline unsigned getNumOperands() const { return Operands.size(); }
+ inline unsigned getNumOperands() const { return (unsigned)Operands.size(); }
// ---------------------------------------------------------------------------
// Operand Iterator interface...
//
- typedef vector<Use>::iterator op_iterator;
- typedef vector<Use>::const_iterator op_const_iterator;
+ typedef std::vector<Use>::iterator op_iterator;
+ typedef std::vector<Use>::const_iterator const_op_iterator;
+
+ void op_reserve(unsigned NumElements) { Operands.reserve(NumElements); }
inline op_iterator op_begin() { return Operands.begin(); }
- inline op_const_iterator op_begin() const { return Operands.end(); }
+ inline const_op_iterator op_begin() const { return Operands.begin(); }
inline op_iterator op_end() { return Operands.end(); }
- inline op_const_iterator op_end() const { return Operands.end(); }
+ inline const_op_iterator op_end() const { return Operands.end(); }
+
+ /// op_erase - This method is used to remove one of the arguments from the
+ /// operands list. Only use this if you know what you are doing.
+ ///
+ op_iterator op_erase(op_iterator I) { return Operands.erase(I); }
+ op_iterator op_erase(op_iterator I, op_iterator E) {
+ return Operands.erase(I, E);
+ }
// dropAllReferences() - This function is in charge of "letting go" of all
// objects that this User refers to. This allows one to
Operands.clear();
}
- // replaceUsesOfWith - Replaces all references to the "From" definition with
- // references to the "To" definition. (defined in Value.cpp)
- //
+ /// replaceUsesOfWith - Replaces all references to the "From" definition with
+ /// references to the "To" definition.
+ ///
void replaceUsesOfWith(Value *From, Value *To);
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const User *) { return true; }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) || isa<Constant>(V);
+ }
+};
+
+template<> struct simplify_type<User::op_iterator> {
+ typedef Value* SimpleType;
+
+ static SimpleType getSimplifiedValue(const User::op_iterator &Val) {
+ return static_cast<SimpleType>(Val->get());
+ }
};
+template<> struct simplify_type<const User::op_iterator>
+ : public simplify_type<User::op_iterator> {};
+
+template<> struct simplify_type<User::const_op_iterator> {
+ typedef Value* SimpleType;
+
+ static SimpleType getSimplifiedValue(const User::const_op_iterator &Val) {
+ return static_cast<SimpleType>(Val->get());
+ }
+};
+template<> struct simplify_type<const User::const_op_iterator>
+ : public simplify_type<User::const_op_iterator> {};
+
+} // End llvm namespace
#endif