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