AlwaysInline.h   [plain text]

/*
 *  Copyright (C) 2005, 2007, 2008 Apple Inc. All rights reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 *
 */

#include "Platform.h"

#ifndef ALWAYS_INLINE
#if COMPILER(GCC) && defined(NDEBUG) && !COMPILER(MINGW)
#define ALWAYS_INLINE inline __attribute__((__always_inline__))
#elif (COMPILER(MSVC) || COMPILER(RVCT)) && defined(NDEBUG)
#define ALWAYS_INLINE __forceinline
#else
#define ALWAYS_INLINE inline
#endif
#endif

#ifndef NEVER_INLINE
#if COMPILER(GCC)
#define NEVER_INLINE __attribute__((__noinline__))
#elif COMPILER(RVCT)
#define NEVER_INLINE __declspec(noinline)
#else
#define NEVER_INLINE
#endif
#endif

#ifndef UNLIKELY
#if COMPILER(GCC) || (RVCT_VERSION_AT_LEAST(3, 0, 0, 0) && defined(__GNUC__))
#define UNLIKELY(x) __builtin_expect((x), 0)
#else
#define UNLIKELY(x) (x)
#endif
#endif

#ifndef LIKELY
#if COMPILER(GCC) || (RVCT_VERSION_AT_LEAST(3, 0, 0, 0) && defined(__GNUC__))
#define LIKELY(x) __builtin_expect((x), 1)
#else
#define LIKELY(x) (x)
#endif
#endif

#ifndef NO_RETURN
#if COMPILER(GCC)
#define NO_RETURN __attribute((__noreturn__))
#elif COMPILER(MSVC) || COMPILER(RVCT)
#define NO_RETURN __declspec(noreturn)
#else
#define NO_RETURN
#endif
#endif

#ifndef NO_RETURN_WITH_VALUE
#if !COMPILER(MSVC)
#define NO_RETURN_WITH_VALUE NO_RETURN
#else
#define NO_RETURN_WITH_VALUE
#endif
#endif