mirror of
https://github.com/matrix-construct/construct
synced 2024-11-09 11:31:11 +01:00
100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
//
|
|
// Portability Macros & Developer Tools
|
|
//
|
|
|
|
#define HAVE_IRCD_PORTABLE_H
|
|
|
|
//
|
|
// For non-clang
|
|
//
|
|
|
|
#ifndef __has_builtin
|
|
#define __has_builtin(x) 0
|
|
#endif
|
|
|
|
#ifndef __is_identifier
|
|
#define __is_identifier(x) 0
|
|
#endif
|
|
|
|
//
|
|
// Common branch prediction macros
|
|
//
|
|
|
|
#ifndef likely
|
|
#define likely(x) __builtin_expect(!!(x), 1)
|
|
#endif
|
|
|
|
#ifndef unlikely
|
|
#define unlikely(x) __builtin_expect(!!(x), 0)
|
|
#endif
|
|
|
|
//
|
|
// 128 bit integer support
|
|
//
|
|
|
|
#if !defined(HAVE_INT128_T) || !defined(HAVE_UINT128_T)
|
|
namespace ircd
|
|
{
|
|
#if defined(HAVE___INT128_T) && defined(HAVE__UINT128_T)
|
|
using int128_t = __int128_t __attribute__((aligned(16)));
|
|
using uint128_t = __uint128_t __attribute__((aligned(16)));
|
|
#elif defined(HAVE___INT128)
|
|
using int128_t = signed __int128 __attribute__((aligned(16)));
|
|
using uint128_t = unsigned __int128 __attribute__((aligned(16)));
|
|
#else
|
|
#error "Missing 128 bit integer types on this platform."
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
//
|
|
// Trouble; FreeBSD unsigned long ctype
|
|
//
|
|
|
|
#if defined(__FreeBSD__) && !defined(ulong)
|
|
typedef u_long ulong;
|
|
#endif
|
|
|
|
#if defined(RB_ASSERT) && defined(RB_ASSERT_INTRINSIC) && !defined(NDEBUG) && defined(__SSE2__)
|
|
#undef assert
|
|
#ifdef __clang__
|
|
#define assert(expr) \
|
|
({ \
|
|
if(unlikely(!static_cast<bool>(expr))) \
|
|
{ \
|
|
asm volatile ("lfence"); \
|
|
__assert_fail(#expr, __FILE__, __LINE__, __FUNCTION__); \
|
|
} \
|
|
})
|
|
#else
|
|
#define assert(expr) \
|
|
({ \
|
|
if(unlikely(!static_cast<bool>(expr))) \
|
|
__assert_fail(#expr, __FILE__, __LINE__, __FUNCTION__); \
|
|
})
|
|
#endif
|
|
#endif
|
|
|
|
//
|
|
// Trouble; clang w/ our custom assert
|
|
//
|
|
|
|
#if defined(RB_ASSERT) && defined(__clang__) && !defined(assert)
|
|
#ifdef NDEBUG
|
|
#define assert(expr) \
|
|
(static_cast<void>(0))
|
|
#else
|
|
#define assert(expr) \
|
|
(static_cast<bool>(expr)? void(0): __assert_fail(#expr, __FILE__, __LINE__, __FUNCTION__))
|
|
#endif
|
|
#endif
|