93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/*
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* Copyright (c) 2011 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Chris Wilson <chris@chris-wilson.co.uk>
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*
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*/
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#ifndef _SNA_COMPILER_H_
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#define _SNA_COMPILER_H_
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#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
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#define likely(expr) (__builtin_expect (!!(expr), 1))
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#define unlikely(expr) (__builtin_expect (!!(expr), 0))
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#define noinline __attribute__((noinline))
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#define force_inline inline __attribute__((always_inline))
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#define fastcall __attribute__((regparm(3)))
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#define must_check __attribute__((warn_unused_result))
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#define constant __attribute__((const))
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#define pure __attribute__((pure))
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#define tightly_packed __attribute__((__packed__))
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#define flatten __attribute__((flatten))
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#define page_aligned __attribute__((aligned(4096)))
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#else
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#define likely(expr) (expr)
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#define unlikely(expr) (expr)
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#define noinline
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#define force_inline inline
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#define fastcall
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#define must_check
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#define constant
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#define pure
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#define tighly_packed
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#define flatten
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#define page_aligned
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#endif
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#define HAS_GCC(major, minor) defined(__GNUC__) && (__GNUC__ > (major) || __GNUC__ == (major) && __GNUC_MINOR__ >= (minor))
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#if HAS_GCC(4, 5)
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#define sse2 __attribute__((target("sse2,fpmath=sse")))
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#define sse4_2 __attribute__((target("sse4.2,sse2,fpmath=sse")))
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#endif
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#if HAS_GCC(4, 7)
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#define avx2 __attribute__((target("avx2,sse4.2,sse2,fpmath=sse")))
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#endif
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#if HAS_GCC(4, 6) && defined(__OPTIMIZE__)
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#define fast __attribute__((optimize("Ofast")))
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#else
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#define fast
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#endif
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#if HAS_GCC(4, 6) && defined(__OPTIMIZE__)
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#define fast_memcpy __attribute__((optimize("Ofast"))) __attribute__((target("inline-all-stringops")))
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#elif HAS_GCC(4, 5) && defined(__OPTIMIZE__)
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#define fast_memcpy __attribute__((target("inline-all-stringops")))
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#else
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#define fast_memcpy
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#endif
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#ifdef HAVE_VALGRIND
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#define VG(x) x
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#else
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#define VG(x)
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#endif
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#define VG_CLEAR(s) VG(memset(&s, 0, sizeof(s)))
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#define COMPILE_TIME_ASSERT(E) ((void)sizeof(char[1 - 2*!(E)]))
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#endif /* _SNA_COMPILER_H_ */
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