forked from OSchip/llvm-project
144 lines
2.3 KiB
C
144 lines
2.3 KiB
C
//===-- int_lib.h - configuration header for libgcc replacement -----------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a configuration header for libgcc replacement.
|
|
// This file is not part of the interface of this library.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef INT_LIB_H
|
|
#define INT_LIB_H
|
|
|
|
// Assumption: signed integral is 2's complement
|
|
// Assumption: right shift of signed negative is arithmetic shift
|
|
|
|
#include <limits.h>
|
|
|
|
#ifdef __LITTLE_ENDIAN__
|
|
#if __LITTLE_ENDIAN__
|
|
#define _YUGA_LITTLE_ENDIAN 1
|
|
#define _YUGA_BIG_ENDIAN 0
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef __BIG_ENDIAN__
|
|
#if __BIG_ENDIAN__
|
|
#define _YUGA_LITTLE_ENDIAN 0
|
|
#define _YUGA_BIG_ENDIAN 1
|
|
#endif
|
|
#endif
|
|
|
|
#if !defined(_YUGA_LITTLE_ENDIAN) || !defined(_YUGA_BIG_ENDIAN)
|
|
#error unable to determine endian
|
|
#endif
|
|
|
|
typedef int si_int;
|
|
typedef unsigned su_int;
|
|
|
|
typedef long long di_int;
|
|
typedef unsigned long long du_int;
|
|
|
|
typedef union
|
|
{
|
|
di_int all;
|
|
struct
|
|
{
|
|
#if _YUGA_LITTLE_ENDIAN
|
|
su_int low;
|
|
si_int high;
|
|
#else
|
|
si_int high;
|
|
su_int low;
|
|
#endif
|
|
};
|
|
} dwords;
|
|
|
|
typedef union
|
|
{
|
|
du_int all;
|
|
struct
|
|
{
|
|
#if _YUGA_LITTLE_ENDIAN
|
|
su_int low;
|
|
su_int high;
|
|
#else
|
|
su_int high;
|
|
su_int low;
|
|
#endif
|
|
};
|
|
} udwords;
|
|
|
|
#if __x86_64
|
|
|
|
typedef int ti_int __attribute__ ((mode (TI)));
|
|
typedef unsigned tu_int __attribute__ ((mode (TI)));
|
|
|
|
typedef union
|
|
{
|
|
ti_int all;
|
|
struct
|
|
{
|
|
#if _YUGA_LITTLE_ENDIAN
|
|
du_int low;
|
|
di_int high;
|
|
#else
|
|
di_int high;
|
|
du_int low;
|
|
#endif
|
|
};
|
|
} twords;
|
|
|
|
typedef union
|
|
{
|
|
tu_int all;
|
|
struct
|
|
{
|
|
#if _YUGA_LITTLE_ENDIAN
|
|
du_int low;
|
|
du_int high;
|
|
#else
|
|
du_int high;
|
|
du_int low;
|
|
#endif
|
|
};
|
|
} utwords;
|
|
|
|
#endif
|
|
|
|
typedef union
|
|
{
|
|
su_int u;
|
|
float f;
|
|
} float_bits;
|
|
|
|
typedef union
|
|
{
|
|
udwords u;
|
|
double f;
|
|
} double_bits;
|
|
|
|
typedef struct
|
|
{
|
|
#if _YUGA_LITTLE_ENDIAN
|
|
udwords low;
|
|
udwords high;
|
|
#else
|
|
udwords high;
|
|
udwords low;
|
|
#endif
|
|
} uqwords;
|
|
|
|
typedef union
|
|
{
|
|
uqwords u;
|
|
long double f;
|
|
} long_double_bits;
|
|
|
|
#endif
|