mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 22:32:47 +00:00
009505452b
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
//===-- llvm/ConstantPool.h - Define the constant pool class ------*- C++ -*-=//
|
|
//
|
|
// This file implements a constant pool that is split into different type
|
|
// planes. This allows searching for a typed object to go a little faster.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CONSTANTPOOL_H
|
|
#define LLVM_CONSTANTPOOL_H
|
|
|
|
#include <vector>
|
|
#include "llvm/ValueHolder.h"
|
|
|
|
class ConstPoolVal;
|
|
class SymTabValue;
|
|
class Type;
|
|
|
|
class ConstantPool {
|
|
public:
|
|
typedef ValueHolder<ConstPoolVal, SymTabValue> PlaneType;
|
|
private:
|
|
typedef vector<PlaneType*> PlanesType;
|
|
PlanesType Planes;
|
|
SymTabValue *Parent;
|
|
|
|
inline void resize(unsigned size);
|
|
public:
|
|
inline ConstantPool(SymTabValue *P) { Parent = P; }
|
|
inline ~ConstantPool() { delete_all(); }
|
|
|
|
inline SymTabValue *getParent() { return Parent; }
|
|
inline const SymTabValue *getParent() const { return Parent; }
|
|
|
|
void setParent(SymTabValue *STV);
|
|
|
|
void dropAllReferences(); // Drop all references to other constants
|
|
|
|
// Constant getPlane - Returns true if the type plane does not exist,
|
|
// otherwise updates the pointer to point to the correct plane.
|
|
//
|
|
bool getPlane(const Type *T, const PlaneType *&Plane) const;
|
|
bool getPlane(const Type *T, PlaneType *&Plane);
|
|
|
|
// Normal getPlane - Resizes constant pool to contain type even if it doesn't
|
|
// already have it.
|
|
//
|
|
PlaneType &getPlane(const Type *T);
|
|
|
|
// insert - Add constant into the symbol table...
|
|
void insert(ConstPoolVal *N);
|
|
bool remove(ConstPoolVal *N); // Returns true on failure
|
|
|
|
void delete_all();
|
|
|
|
// find - Search to see if a constant of the specified value is already in
|
|
// the constant table.
|
|
//
|
|
const ConstPoolVal *find(const ConstPoolVal *V) const;
|
|
ConstPoolVal *find(const ConstPoolVal *V) ;
|
|
const ConstPoolVal *find(const Type *Ty) const;
|
|
ConstPoolVal *find(const Type *Ty) ;
|
|
|
|
// Plane iteration support
|
|
//
|
|
typedef PlanesType::iterator plane_iterator;
|
|
typedef PlanesType::const_iterator plane_const_iterator;
|
|
|
|
inline plane_iterator begin() { return Planes.begin(); }
|
|
inline plane_const_iterator begin() const { return Planes.begin(); }
|
|
inline plane_iterator end() { return Planes.end(); }
|
|
inline plane_const_iterator end() const { return Planes.end(); }
|
|
};
|
|
|
|
#endif
|