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//===-- GenericValue.h - Represent any type of LLVM value -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// The GenericValue class is used to represent an LLVM value of arbitrary type.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_GENERICVALUE_H
#define LLVM_EXECUTIONENGINE_GENERICVALUE_H
#include "llvm/ADT/APInt.h"
#include "llvm/Support/DataTypes.h"
namespace llvm {
typedef void* PointerTy;
class APInt;
struct GenericValue {
struct IntPair {
unsigned int first;
unsigned int second;
};
union {
double DoubleVal;
float FloatVal;
PointerTy PointerVal;
struct IntPair UIntPairVal;
unsigned char Untyped[8];
};
APInt IntVal; // also used for long doubles.
// For aggregate data types.
std::vector<GenericValue> AggregateVal;
// to make code faster, set GenericValue to zero could be omitted, but it is
// potentially can cause problems, since GenericValue to store garbage
// instead of zero.
GenericValue() : IntVal(1,0) {UIntPairVal.first = 0; UIntPairVal.second = 0;}
explicit GenericValue(void *V) : PointerVal(V), IntVal(1,0) { }
};
inline GenericValue PTOGV(void *P) { return GenericValue(P); }
inline void* GVTOP(const GenericValue &GV) { return GV.PointerVal; }
} // End llvm namespace.
#endif
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