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