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/*
* Copyright 2009-2015 Samy Al Bahra.
* Copyright 2014 Paul Khuong.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef CK_GCC_CC_H
#define CK_GCC_CC_H
#include <ck_md.h>
#ifdef __SUNPRO_C
#define CK_CC_UNUSED
#define CK_CC_USED
#define CK_CC_IMM
#define CK_CC_IMM_U32
#else
#define CK_CC_UNUSED __attribute__((unused))
#define CK_CC_USED __attribute__((used))
#define CK_CC_IMM "i"
#if defined(__x86_64__) || defined(__x86__)
#define CK_CC_IMM_U32 "Z"
#define CK_CC_IMM_S32 "e"
#else
#define CK_CC_IMM_U32 CK_CC_IMM
#define CK_CC_IMM_S32 CK_CC_IMM
#endif /* __x86_64__ || __x86__ */
#endif
#ifdef __OPTIMIZE__
#define CK_CC_INLINE CK_CC_UNUSED inline
#else
#define CK_CC_INLINE CK_CC_UNUSED
#endif
#define CK_CC_FORCE_INLINE CK_CC_UNUSED __attribute__((always_inline)) inline
#define CK_CC_RESTRICT __restrict__
/*
* Packed attribute.
*/
#define CK_CC_PACKED __attribute__((packed))
/*
* Weak reference.
*/
#define CK_CC_WEAKREF __attribute__((weakref))
/*
* Alignment attribute.
*/
#define CK_CC_ALIGN(B) __attribute__((aligned(B)))
/*
* Cache align.
*/
#define CK_CC_CACHELINE CK_CC_ALIGN(CK_MD_CACHELINE)
/*
* These are functions which should be avoided.
*/
#ifdef __freestanding__
#pragma GCC poison malloc free
#endif
/*
* Branch execution hints.
*/
#define CK_CC_LIKELY(x) (__builtin_expect(!!(x), 1))
#define CK_CC_UNLIKELY(x) (__builtin_expect(!!(x), 0))
/*
* Some compilers are overly strict regarding aliasing semantics.
* Unfortunately, in many cases it makes more sense to pay aliasing
* cost rather than overly expensive register spillage.
*/
#define CK_CC_ALIASED __attribute__((__may_alias__))
/*
* Compile-time typeof
*/
#define CK_CC_TYPEOF(X, DEFAULT) __typeof__(X)
/*
* Portability wrappers for bitwise ops.
*/
#define CK_F_CC_FFS
#define CK_F_CC_CLZ
#define CK_F_CC_CTZ
#define CK_F_CC_POPCOUNT
CK_CC_INLINE static int
ck_cc_ffs(unsigned int x)
{
return __builtin_ffs(x);
}
CK_CC_INLINE static int
ck_cc_clz(unsigned int x)
{
return __builtin_clz(x);
}
CK_CC_INLINE static int
ck_cc_ctz(unsigned int x)
{
return __builtin_ctz(x);
}
CK_CC_INLINE static int
ck_cc_popcount(unsigned int x)
{
return __builtin_popcount(x);
}
#endif /* CK_GCC_CC_H */
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