compiler.h revision 0491142152dcc61ebe0b46b05c94957e54c44bd9
1f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* 2f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Mesa 3-D graphics library 3f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Version: 7.5 4f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 5f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 6f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 7f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 8f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Permission is hereby granted, free of charge, to any person obtaining a 9f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * copy of this software and associated documentation files (the "Software"), 10f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * to deal in the Software without restriction, including without limitation 11f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * the rights to use, copy, modify, merge, publish, distribute, sublicense, 12f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * and/or sell copies of the Software, and to permit persons to whom the 13f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Software is furnished to do so, subject to the following conditions: 14f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 15f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * The above copyright notice and this permission notice shall be included 16f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * in all copies or substantial portions of the Software. 17f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 18f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 23f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 25f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 26f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 27f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 28f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * \file compiler.h 29f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Compiler-related stuff. 30f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 31f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 32f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 33f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef COMPILER_H 34f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define COMPILER_H 35f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 36f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 37f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <assert.h> 38f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <ctype.h> 39f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__alpha__) && defined(CCPML) 40f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <cpml.h> /* use Compaq's Fast Math Library on Alpha */ 41f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 42f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <math.h> 43f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 44f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <limits.h> 45f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <stdlib.h> 46f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <stdio.h> 47f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <string.h> 48f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__linux__) && defined(__i386__) 49f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <fpu_control.h> 50f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 51f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <float.h> 52f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <stdarg.h> 53f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 54f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 55f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef __cplusplus 56f2c023291a1f2887294d2aac504f8b82857ad092Brian Paulextern "C" { 57f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 58f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 59f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 60f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 61f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Get standard integer types 62f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 63f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(_MSC_VER) 64f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef __int8 int8_t; 65f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef unsigned __int8 uint8_t; 66f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef __int16 int16_t; 67f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef unsigned __int16 uint16_t; 68f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# ifndef __eglplatform_h_ 69f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef __int32 int32_t; 70f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 71f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef unsigned __int32 uint32_t; 72f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef __int64 int64_t; 73f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef unsigned __int64 uint64_t; 74f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 75f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if defined(_WIN64) 76f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef __int64 intptr_t; 77f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef unsigned __int64 uintptr_t; 78f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# else 79f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef __int32 intptr_t; 80f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul typedef unsigned __int32 uintptr_t; 81f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 82f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 83f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INT64_C(__val) __val##i64 84f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define UINT64_C(__val) __val##ui64 85f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 86f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# include <stdint.h> 87f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 88f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 89f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 90f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 91f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Sun compilers define __i386 instead of the gcc-style __i386__ 92f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 93f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef __SUNPRO_C 94f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if !defined(__i386__) && defined(__i386) 95f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __i386__ 96f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# elif !defined(__amd64__) && defined(__amd64) 97f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __amd64__ 98f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# elif !defined(__sparc__) && defined(__sparc) 99f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __sparc__ 100f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 101f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if !defined(__volatile) 102f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __volatile volatile 103f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 104f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 105f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 106f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 107f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 108f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * finite macro. 109f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 110f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(_WIN32) && !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(BUILD_FOR_SNAP) 111f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __WIN32__ 112f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define finite _finite 113f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 114f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__WATCOMC__) 115f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define finite _finite 116f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma disable_message(201) /* Disable unreachable code warnings */ 117f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 118f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 119f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 120f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 121f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Disable assorted warnings 122f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 123f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP) 124f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if !defined(__GNUC__) /* mingw environment */ 125f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4068 ) /* unknown pragma */ 126f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4710 ) /* function 'foo' not inlined */ 127f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */ 128f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4127 ) /* conditional expression is constant */ 129f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if defined(MESA_MINWARN) 130f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */ 131f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */ 132f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */ 133f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */ 134f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */ 135f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 136f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 137f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 138f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 139f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 140f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 141f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Function inlining 142f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 143f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__GNUC__) 144f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE __inline__ 145f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(__MSC__) 146f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE __inline 147f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(_MSC_VER) 148f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE __inline 149f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(__ICL) 150f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE __inline 151f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(__INTEL_COMPILER) 152f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE inline 153f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100) 154f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE __inline 155f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(__SUNPRO_C) && defined(__C99FEATURES__) 156f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE inline 157f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __inline inline 158f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __inline__ inline 159f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif (__STDC_VERSION__ >= 199901L) /* C99 */ 160f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE inline 161f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 162f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define INLINE 163f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 164f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 165f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 166f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 167f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * PUBLIC/USED macros 168f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 169f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * If we build the library with gcc's -fvisibility=hidden flag, we'll 170f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * use the PUBLIC macro to mark functions that are to be exported. 171f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 172f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * We also need to define a USED attribute, so the optimizer doesn't 173f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * inline a static function that we later use in an alias. - ajax 174f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 175f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303 176f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define PUBLIC __attribute__((visibility("default"))) 177f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define USED __attribute__((used)) 178f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 179f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define PUBLIC 180f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define USED 181f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 182f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 183f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 184f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 185f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Some compilers don't like some of Mesa's const usage. In those places use 186f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * CONST instead of const. Pass -DNO_CONST to compilers where this matters. 187f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 188f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef NO_CONST 189f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define CONST 190f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 191f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define CONST const 192f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 193f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 194f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 195f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 196f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * __builtin_expect macros 197f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 198f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if (!defined(__GNUC__) || __GNUC__ < 3) && (!defined(__IBMC__) || __IBMC__ < 900) 199f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __builtin_expect(x, y) x 200f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 201f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 202f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 203f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 204f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * The __FUNCTION__ gcc variable is generally only used for debugging. 205f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * If we're not using gcc, define __FUNCTION__ as a cpp symbol here. 206f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Don't define it if using a newer Windows compiler. 207f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 208f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef __FUNCTION__ 209f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if defined(__VMS) 210f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __FUNCTION__ "VMS$NL:" 211f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# elif ((!defined __GNUC__) || (__GNUC__ < 2)) && (!defined __xlC__) && \ 212f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul (!defined(_MSC_VER) || _MSC_VER < 1300) 213f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if (__STDC_VERSION__ >= 199901L) /* C99 */ || \ 214f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul (defined(__SUNPRO_C) && defined(__C99FEATURES__)) 215f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __FUNCTION__ __func__ 216f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# else 217f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __FUNCTION__ "<unknown>" 218f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 219f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 220f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 221f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 222f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 223f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 224f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN. 225f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Do not use them unless absolutely necessary! 226f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Try to use a runtime test instead. 227f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * For now, only used by some DRI hardware drivers for color/texel packing. 228f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 229f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN 230f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__linux__) 231f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <byteswap.h> 232f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define CPU_TO_LE32( x ) bswap_32( x ) 233093ad509fcee5cb3a890663fc80ed671dcaf4000Jeremy Huddleston#elif defined(__APPLE__) 234093ad509fcee5cb3a890663fc80ed671dcaf4000Jeremy Huddleston#include <CoreFoundation/CFByteOrder.h> 235093ad509fcee5cb3a890663fc80ed671dcaf4000Jeremy Huddleston#define CPU_TO_LE32( x ) CFSwapInt32HostToLittle( x ) 236093ad509fcee5cb3a890663fc80ed671dcaf4000Jeremy Huddleston#else /*__linux__ __APPLE__*/ 237f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <sys/endian.h> 238f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define CPU_TO_LE32( x ) bswap32( x ) 239f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif /*__linux__*/ 240f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define MESA_BIG_ENDIAN 1 241f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 242f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define CPU_TO_LE32( x ) ( x ) 243f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define MESA_LITTLE_ENDIAN 1 244f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 245f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define LE32_TO_CPU( x ) CPU_TO_LE32( x ) 246f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 247f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 248f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 249f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP) 250f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define CAPI _cdecl 251f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 252f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 253f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 254f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 255f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Create a macro so that asm functions can be linked into compilers other 256f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * than GNU C 257f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 258f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef _ASMAPI 259f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/ 260f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _ASMAPI __cdecl 261f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 262f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _ASMAPI 263f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 264f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef PTR_DECL_IN_FRONT 265f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _ASMAPIP * _ASMAPI 266f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 267f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _ASMAPIP _ASMAPI * 268f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 269f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 270f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 271f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef USE_X86_ASM 272f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _NORMAPI _ASMAPI 273f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _NORMAPIP _ASMAPIP 274f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 275f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _NORMAPI 276f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _NORMAPIP * 277f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 278f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 279f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 280f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* This is a macro on IRIX */ 281f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef _P 282f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#undef _P 283f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 284f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 285f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 286f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* Turn off macro checking systems used by other libraries */ 287f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef CHECK 288f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#undef CHECK 289f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 290f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 291f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 292f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 293f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * ASSERT macro 294f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 295f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if !defined(_WIN32_WCE) 296f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(BUILD_FOR_SNAP) && defined(CHECKED) 297f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define ASSERT(X) _CHECK(X) 298f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(DEBUG) 299f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define ASSERT(X) assert(X) 300f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 301f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define ASSERT(X) 302f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 303f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 304f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 305f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 306f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef NULL 307f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define NULL 0 308f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 309f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 310f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 311f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 312f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * LONGSTRING macro 313f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * gcc -pedantic warns about long string literals, LONGSTRING silences that. 314f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 315f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if !defined(__GNUC__) || (__GNUC__ < 2) || \ 316f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul ((__GNUC__ == 2) && (__GNUC_MINOR__ <= 7)) 317f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define LONGSTRING 318f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 319f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define LONGSTRING __extension__ 320f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 321f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 322f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 323f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef M_PI 324f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define M_PI (3.1415926536) 325f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 326f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 327f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef M_E 328f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define M_E (2.7182818284590452354) 329f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 330f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 331f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef ONE_DIV_LN2 332f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define ONE_DIV_LN2 (1.442695040888963456) 333f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 334f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 335f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef ONE_DIV_SQRT_LN2 336f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define ONE_DIV_SQRT_LN2 (1.201122408786449815) 337f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 338f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 339f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef FLT_MAX_EXP 340f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define FLT_MAX_EXP 128 341f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 342f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 343f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 344f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 345f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * USE_IEEE: Determine if we're using IEEE floating point 346f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 347f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__i386__) || defined(__386__) || defined(__sparc__) || \ 348f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__s390x__) || defined(__powerpc__) || \ 349f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__x86_64__) || \ 350f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(ia64) || defined(__ia64__) || \ 351f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__hppa__) || defined(hpux) || \ 352f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__mips) || defined(_MIPS_ARCH) || \ 353f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__arm__) || \ 354f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__sh__) || defined(__m32r__) || \ 355f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul (defined(__sun) && defined(_IEEE_754)) || \ 356f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul (defined(__alpha__) && (defined(__IEEE_FLOAT) || !defined(VMS))) 357f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define USE_IEEE 358f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define IEEE_ONE 0x3f800000 359f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 360f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 361f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 362f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 363f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * START/END_FAST_MATH macros: 364f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 365f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * START_FAST_MATH: Set x86 FPU to faster, 32-bit precision mode (and save 366f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * original mode to a temporary). 367f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * END_FAST_MATH: Restore x86 FPU to original mode. 368f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 369f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__GNUC__) && defined(__i386__) 370f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* 371f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Set the x86 FPU control word to guarentee only 32 bits of precision 372f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * are stored in registers. Allowing the FPU to store more introduces 373f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * differences between situations where numbers are pulled out of memory 374f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * vs. situations where the compiler is able to optimize register usage. 375f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 376f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * In the worst case, we force the compiler to use a memory access to 377f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * truncate the float, by specifying the 'volatile' keyword. 378f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 379f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* Hardware default: All exceptions masked, extended double precision, 380f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * round to nearest (IEEE compliant): 381f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 382f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define DEFAULT_X86_FPU 0x037f 383f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* All exceptions masked, single precision, round to nearest: 384f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 385f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define FAST_X86_FPU 0x003f 386f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* The fldcw instruction will cause any pending FP exceptions to be 387f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * raised prior to entering the block, and we clear any pending 388f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * exceptions before exiting the block. Hence, asm code has free 389f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * reign over the FPU while in the fast math block. 390f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 391f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(NO_FAST_MATH) 392f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) \ 393f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 394f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLuint mask = DEFAULT_X86_FPU; \ 395f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \ 396f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fldcw %0" : : "m" (mask) ); \ 397f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 398f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 399f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) \ 400f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 401f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLuint mask = FAST_X86_FPU; \ 402f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \ 403f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fldcw %0" : : "m" (mask) ); \ 404f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 405f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 406f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* Restore original FPU mode, and clear any exceptions that may have 407f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * occurred in the FAST_MATH block. 408f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 409f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define END_FAST_MATH(x) \ 410f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 411f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fnclex ; fldcw %0" : : "m" (*&(x)) ); \ 412f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 413f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 414f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(__WATCOMC__) && defined(__386__) 415f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */ 416f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define FAST_X86_FPU 0x003f /* See GCC comments above */ 417f2c023291a1f2887294d2aac504f8b82857ad092Brian Paulvoid _watcom_start_fast_math(unsigned short *x,unsigned short *mask); 418f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#pragma aux _watcom_start_fast_math = \ 419f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul "fnstcw word ptr [eax]" \ 420f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul "fldcw word ptr [ecx]" \ 421f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul parm [eax] [ecx] \ 422f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul modify exact []; 423f2c023291a1f2887294d2aac504f8b82857ad092Brian Paulvoid _watcom_end_fast_math(unsigned short *x); 424f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#pragma aux _watcom_end_fast_math = \ 425f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul "fnclex" \ 426f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul "fldcw word ptr [eax]" \ 427f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul parm [eax] \ 428f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul modify exact []; 429f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(NO_FAST_MATH) 430f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) \ 431f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 432f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLushort mask = DEFAULT_X86_FPU; \ 433f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul _watcom_start_fast_math(&x,&mask); \ 434f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 435f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 436f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) \ 437f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 438f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLushort mask = FAST_X86_FPU; \ 439f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul _watcom_start_fast_math(&x,&mask); \ 440f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 441f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 442f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define END_FAST_MATH(x) _watcom_end_fast_math(&x) 443f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 444f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(_MSC_VER) && defined(_M_IX86) 445f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */ 446f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define FAST_X86_FPU 0x003f /* See GCC comments above */ 447f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(NO_FAST_MATH) 448f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) do {\ 449f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLuint mask = DEFAULT_X86_FPU;\ 450f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fnstcw word ptr [x]\ 451f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fldcw word ptr [mask]\ 452f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while(0) 453f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 454f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) do {\ 455f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLuint mask = FAST_X86_FPU;\ 456f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fnstcw word ptr [x]\ 457f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fldcw word ptr [mask]\ 458f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while(0) 459f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 460f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define END_FAST_MATH(x) do {\ 461f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fnclex\ 462f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fldcw word ptr [x]\ 463f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while(0) 464f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 465f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 466f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) x = 0 467f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define END_FAST_MATH(x) (void)(x) 468f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 469f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 470f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 4710491142152dcc61ebe0b46b05c94957e54c44bd9Keith Whitwell#ifndef Elements 472f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define Elements(x) (sizeof(x)/sizeof(*(x))) 4730491142152dcc61ebe0b46b05c94957e54c44bd9Keith Whitwell#endif 474f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 475f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 476f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 477f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef __cplusplus 478f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} 479f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 480f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 481f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 482f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif /* COMPILER_H */ 483