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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*****************************************************************************/
#ifndef _VARTYPE_H_
#define _VARTYPE_H_
/*****************************************************************************/
#include "error.h"
enum var_types_classification
{
VTF_ANY = 0x0000,
VTF_INT = 0x0001,
VTF_UNS = 0x0002, // type is unsigned
VTF_FLT = 0x0004,
VTF_GCR = 0x0008, // type is GC ref
VTF_BYR = 0x0010, // type is Byref
VTF_I = 0x0020, // is machine sized
VTF_S = 0x0040, // is a struct type
};
DECLARE_TYPED_ENUM(var_types,BYTE)
{
#define DEF_TP(tn,nm,jitType,verType,sz,sze,asze,st,al,tf,howUsed) TYP_##tn,
#include "typelist.h"
#undef DEF_TP
TYP_COUNT,
TYP_lastIntrins = TYP_DOUBLE
}
END_DECLARE_TYPED_ENUM(var_types,BYTE)
/*****************************************************************************
* C-style pointers are implemented as TYP_INT or TYP_LONG depending on the
* platform
*/
#ifdef _WIN64
#define TYP_I_IMPL TYP_LONG
#define TYP_U_IMPL TYP_ULONG
#define TYPE_REF_IIM TYPE_REF_LNG
#else
#define TYP_I_IMPL TYP_INT
#define TYP_U_IMPL TYP_UINT
#define TYPE_REF_IIM TYPE_REF_INT
#ifdef _PREFAST_
// We silence this in the 32-bit build because for portability, we like to have asserts like this:
// assert(op2->gtType == TYP_INT || op2->gtType == TYP_I_IMPL);
// This is obviously redundant for 32-bit builds, but we don't want to have ifdefs and different
// asserts just for 64-bit builds, so for now just silence the assert
#pragma warning(disable: 6287) // warning 6287: the left and right sub-expressions are identical
#endif //_PREFAST_
#endif
/*****************************************************************************/
const extern BYTE varTypeClassification[TYP_COUNT];
// make any class with a TypeGet member also have a function TypeGet() that does the same thing
template<class T>
inline var_types TypeGet(T * t) { return t->TypeGet(); }
// make a TypeGet function which is the identity function for var_types
// the point of this and the preceding template is now you can make template functions
// that work on var_types as well as any object that exposes a TypeGet method.
// such as all of these varTypeIs* functions
inline var_types TypeGet(var_types v) { return v; }
#ifdef FEATURE_SIMD
template <class T>
inline bool varTypeIsSIMD(T vt)
{
switch(TypeGet(vt))
{
case TYP_SIMD8:
case TYP_SIMD12:
case TYP_SIMD16:
#ifdef FEATURE_AVX_SUPPORT
case TYP_SIMD32:
#endif // FEATURE_AVX_SUPPORT
return true;
default:
return false;
}
}
#else // FEATURE_SIMD
// Always return false if FEATURE_SIMD is not enabled
template <class T>
inline bool varTypeIsSIMD(T vt)
{
return false;
}
#endif // !FEATURE_SIMD
template <class T>
inline bool varTypeIsIntegral(T vt)
{
return ((varTypeClassification[TypeGet(vt)] & (VTF_INT )) != 0);
}
template <class T>
inline bool varTypeIsIntegralOrI(T vt)
{
return ((varTypeClassification[TypeGet(vt)] & (VTF_INT|VTF_I )) != 0);
}
template <class T>
inline bool varTypeIsUnsigned (T vt)
{
return ((varTypeClassification[TypeGet(vt)] & (VTF_UNS )) != 0);
}
// If "vt" is an unsigned integral type, returns the corresponding signed integral type, otherwise
// return "vt".
inline var_types varTypeUnsignedToSigned(var_types vt)
{
if (varTypeIsUnsigned(vt))
{
switch (vt)
{
case TYP_BOOL:
case TYP_UBYTE: return TYP_BYTE;
case TYP_USHORT:
case TYP_CHAR: return TYP_SHORT;
case TYP_UINT: return TYP_INT;
case TYP_ULONG: return TYP_LONG;
default:
unreached();
}
}
else
{
return vt;
}
}
template <class T>
inline bool varTypeIsFloating (T vt)
{
return ((varTypeClassification[TypeGet(vt)] & (VTF_FLT )) != 0);
}
template <class T>
inline bool varTypeIsArithmetic(T vt)
{
return ((varTypeClassification[TypeGet(vt)] & (VTF_INT|VTF_FLT)) != 0);
}
template <class T>
inline unsigned varTypeGCtype (T vt)
{
return (unsigned)(varTypeClassification[TypeGet(vt)] & (VTF_GCR|VTF_BYR));
}
template <class T>
inline bool varTypeIsGC (T vt)
{
return (varTypeGCtype(vt) != 0);
}
template <class T>
inline bool varTypeIsI (T vt)
{
return ((varTypeClassification[TypeGet(vt)] & VTF_I) != 0);
}
template <class T>
inline bool varTypeCanReg (T vt)
{
return ((varTypeClassification[TypeGet(vt)] & (VTF_INT|VTF_I|VTF_FLT)) != 0);
}
template <class T>
inline bool varTypeIsByte (T vt)
{
return (TypeGet(vt) >= TYP_BOOL) && (TypeGet(vt) <= TYP_UBYTE);
}
template <class T>
inline bool varTypeIsShort (T vt)
{
return (TypeGet(vt) >= TYP_CHAR) && (TypeGet(vt) <= TYP_USHORT);
}
template <class T>
inline bool varTypeIsSmall (T vt)
{
return (TypeGet(vt) >= TYP_BOOL) && (TypeGet(vt) <= TYP_USHORT);
}
template <class T>
inline bool varTypeIsSmallInt (T vt)
{
return (TypeGet(vt) >= TYP_BYTE) && (TypeGet(vt) <= TYP_USHORT);
}
template <class T>
inline bool varTypeIsIntOrI (T vt)
{
return ((TypeGet(vt) == TYP_INT)
#ifdef _TARGET_64BIT_
|| (TypeGet(vt) == TYP_I_IMPL)
#endif // _TARGET_64BIT_
);
}
template <class T>
inline bool genActualTypeIsIntOrI (T vt)
{
return ((TypeGet(vt) >= TYP_BOOL) && (TypeGet(vt) <= TYP_U_IMPL));
}
template <class T>
inline bool varTypeIsLong (T vt)
{
return (TypeGet(vt) >= TYP_LONG) && (TypeGet(vt) <= TYP_ULONG);
}
template <class T>
inline bool varTypeIsMultiReg (T vt)
{
#ifdef _TARGET_64BIT_
return false;
#else
return (TypeGet(vt) == TYP_LONG);
#endif
}
template <class T>
inline bool varTypeIsSingleReg (T vt)
{
return !varTypeIsMultiReg(vt);
}
template <class T>
inline bool varTypeIsComposite(T vt)
{
return (!varTypeIsArithmetic(TypeGet(vt)) && TypeGet(vt) != TYP_VOID);
}
// Is this type promotable?
// In general only structs are promotable.
// However, a SIMD type, e.g. TYP_SIMD may be handled as either a struct, OR a
// fully-promoted register type.
// On 32-bit systems longs are split into an upper and lower half, and they are
// handled as if they are structs with two integer fields.
template <class T>
inline bool varTypeIsPromotable(T vt)
{
return (varTypeIsStruct(vt)
|| (TypeGet(vt) == TYP_BLK)
#if !defined(_TARGET_64BIT_)
|| varTypeIsLong(vt)
#endif // !defined(_TARGET_64BIT_)
);
}
template <class T>
inline bool varTypeIsStruct(T vt)
{
return ((varTypeClassification[TypeGet(vt)] & VTF_S) != 0);
}
template <class T>
inline bool varTypeIsEnregisterableStruct(T vt)
{
return (TypeGet(vt) != TYP_STRUCT);
}
/*****************************************************************************/
#endif // _VARTYPE_H_
/*****************************************************************************/
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