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/*
* Copyright 2011-2017 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __UTIL_DEFINES_H__
#define __UTIL_DEFINES_H__
/* Bitness */
#if defined(__ppc64__) || defined(__PPC64__) || defined(__x86_64__) || defined(__ia64__) || defined(_M_X64)
# define __KERNEL_64_BIT__
#endif
/* Qualifiers for kernel code shared by CPU and GPU */
#ifndef __KERNEL_GPU__
# define ccl_device static inline
# define ccl_device_noinline static
# define ccl_global
# define ccl_static_constant static const
# define ccl_constant const
# define ccl_local
# define ccl_local_param
# define ccl_private
# define ccl_restrict __restrict
# define ccl_ref &
# define __KERNEL_WITH_SSE_ALIGN__
# if defined(_WIN32) && !defined(FREE_WINDOWS)
# define ccl_device_inline static __forceinline
# define ccl_device_forceinline static __forceinline
# define ccl_align(...) __declspec(align(__VA_ARGS__))
# ifdef __KERNEL_64_BIT__
# define ccl_try_align(...) __declspec(align(__VA_ARGS__))
# else /* __KERNEL_64_BIT__ */
# undef __KERNEL_WITH_SSE_ALIGN__
/* No support for function arguments (error C2719). */
# define ccl_try_align(...)
# endif /* __KERNEL_64_BIT__ */
# define ccl_may_alias
# define ccl_always_inline __forceinline
# define ccl_never_inline __declspec(noinline)
# define ccl_maybe_unused
# else /* _WIN32 && !FREE_WINDOWS */
# define ccl_device_inline static inline __attribute__((always_inline))
# define ccl_device_forceinline static inline __attribute__((always_inline))
# define ccl_align(...) __attribute__((aligned(__VA_ARGS__)))
# ifndef FREE_WINDOWS64
# define __forceinline inline __attribute__((always_inline))
# endif
# define ccl_try_align(...) __attribute__((aligned(__VA_ARGS__)))
# define ccl_may_alias __attribute__((__may_alias__))
# define ccl_always_inline __attribute__((always_inline))
# define ccl_never_inline __attribute__((noinline))
# define ccl_maybe_unused __attribute__((used))
# endif /* _WIN32 && !FREE_WINDOWS */
/* Use to suppress '-Wimplicit-fallthrough' (in place of 'break'). */
# if defined(__GNUC__) && (__GNUC__ >= 7) /* gcc7.0+ only */
# define ATTR_FALLTHROUGH __attribute__((fallthrough))
# else
# define ATTR_FALLTHROUGH ((void)0)
# endif
#endif /* __KERNEL_GPU__ */
/* macros */
/* hints for branch prediction, only use in code that runs a _lot_ */
#if defined(__GNUC__) && defined(__KERNEL_CPU__)
# define LIKELY(x) __builtin_expect(!!(x), 1)
# define UNLIKELY(x) __builtin_expect(!!(x), 0)
#else
# define LIKELY(x) (x)
# define UNLIKELY(x) (x)
#endif
#if defined(__GNUC__) || defined(__clang__)
/* Some magic to be sure we don't have reference in the type. */
template<typename T> static inline T decltype_helper(T x) { return x; }
# define TYPEOF(x) decltype(decltype_helper(x))
#endif
/* Causes warning:
* incompatible types when assigning to type 'Foo' from type 'Bar'
* ... the compiler optimizes away the temp var */
#ifdef __GNUC__
#define CHECK_TYPE(var, type) { \
TYPEOF(var) *__tmp; \
__tmp = (type *)NULL; \
(void)__tmp; \
} (void)0
#define CHECK_TYPE_PAIR(var_a, var_b) { \
TYPEOF(var_a) *__tmp; \
__tmp = (typeof(var_b) *)NULL; \
(void)__tmp; \
} (void)0
#else
# define CHECK_TYPE(var, type)
# define CHECK_TYPE_PAIR(var_a, var_b)
#endif
/* can be used in simple macros */
#define CHECK_TYPE_INLINE(val, type) \
((void)(((type)0) != (val)))
#ifndef __KERNEL_GPU__
# include <cassert>
# define util_assert(statement) assert(statement)
#else
# define util_assert(statement)
#endif
#endif /* __UTIL_DEFINES_H__ */
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