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Diffstat (limited to 'src/ffts_attributes.h')
| -rw-r--r-- | src/ffts_attributes.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/ffts_attributes.h b/src/ffts_attributes.h new file mode 100644 index 0000000..bdfd616 --- /dev/null +++ b/src/ffts_attributes.h @@ -0,0 +1,111 @@ +/* + + This file is part of FFTS -- The Fastest Fourier Transform in the South + + Copyright (c) 2012, Anthony M. Blake <amb@anthonix.com> + Copyright (c) 2012, The University of Waikato + + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * 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. + * Neither the name of the organization nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 ANTHONY M. BLAKE 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 FFTS_ATTRIBUTES_H +#define FFTS_ATTRIBUTES_H + +#if defined (_MSC_VER) && (_MSC_VER >= 1020) +#pragma once +#endif + +/* Macro definitions for various function/variable attributes */ +#ifdef __GNUC__ +#define GCC_VERSION_AT_LEAST(x,y) \ + (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y) +#else +#define GCC_VERSION_AT_LEAST(x,y) 0 +#endif + +#ifdef __GNUC__ +#define FFTS_ALIGN(x) __attribute__((aligned(x))) +#elif defined(_MSC_VER) +#define FFTS_ALIGN(x) __declspec(align(x)) +#else +#define FFTS_ALIGN(x) +#endif + +#if GCC_VERSION_AT_LEAST(3,1) +#define FFTS_ALWAYS_INLINE __attribute__((always_inline)) inline +#elif defined(_MSC_VER) +#define FFTS_ALWAYS_INLINE __forceinline +#else +#define FFTS_ALWAYS_INLINE inline +#endif + +#if defined(_MSC_VER) +#define FFTS_INLINE __inline +#else +#define FFTS_INLINE inline +#endif + +#if defined(__GNUC__) +#define FFTS_RESTRICT __restrict +#elif defined(_MSC_VER) +#define FFTS_RESTRICT __restrict +#else +#define FFTS_RESTRICT +#endif + +#if GCC_VERSION_AT_LEAST(4,5) +#define FFTS_ASSUME(cond) do { if (!(cond)) __builtin_unreachable(); } while (0) +#elif defined(_MSC_VER) +#define FFTS_ASSUME(cond) __assume(cond) +#else +#define FFTS_ASSUME(cond) +#endif + +#if GCC_VERSION_AT_LEAST(4,7) +#define FFTS_ASSUME_ALIGNED_16(x) __builtin_assume_aligned(x, 16) +#else +#define FFTS_ASSUME_ALIGNED_16(x) x +#endif + +#if GCC_VERSION_AT_LEAST(4,7) +#define FFTS_ASSUME_ALIGNED_32(x) __builtin_assume_aligned(x, 32) +#else +#define FFTS_ASSUME_ALIGNED_32(x) x +#endif + +#if defined(__GNUC__) +#define FFTS_LIKELY(cond) __builtin_expect(!!(cond), 1) +#else +#define FFTS_LIKELY(cond) cond +#endif + +#if defined(__GNUC__) +#define FFTS_UNLIKELY(cond) __builtin_expect(!!(cond), 0) +#else +#define FFTS_UNLIKELY(cond) cond +#endif + +#endif /* FFTS_ATTRIBUTES_H */ |
