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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 <vector>
namespace llvm {
using PointerTy = void *;
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 namespace llvm
#endif // LLVM_EXECUTIONENGINE_GENERICVALUE_H
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