| //===- 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 |