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      1 //===-- GenericValue.h - Represent any type of LLVM value -------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // The GenericValue class is used to represent an LLVM value of arbitrary type.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 
     15 #ifndef GENERIC_VALUE_H
     16 #define GENERIC_VALUE_H
     17 
     18 #include "llvm/ADT/APInt.h"
     19 #include "llvm/Support/DataTypes.h"
     20 
     21 namespace llvm {
     22 
     23 typedef void* PointerTy;
     24 class APInt;
     25 
     26 struct GenericValue {
     27   union {
     28     double          DoubleVal;
     29     float           FloatVal;
     30     PointerTy       PointerVal;
     31     struct { unsigned int first; unsigned int second; } UIntPairVal;
     32     unsigned char   Untyped[8];
     33   };
     34   APInt IntVal;   // also used for long doubles
     35 
     36   GenericValue() : DoubleVal(0.0), IntVal(1,0) {}
     37   explicit GenericValue(void *V) : PointerVal(V), IntVal(1,0) { }
     38 };
     39 
     40 inline GenericValue PTOGV(void *P) { return GenericValue(P); }
     41 inline void* GVTOP(const GenericValue &GV) { return GV.PointerVal; }
     42 
     43 } // End llvm namespace
     44 #endif
     45