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