util_optimization.h

Go to the documentation of this file.

/*
 * Copyright 2011-2013 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_OPTIMIZATION_H__
#define __UTIL_OPTIMIZATION_H__
 
#ifndef __KERNEL_GPU__
 
/* x86
 *
 * Compile a regular, SSE2 and SSE3 kernel. */
 
#  if defined(i386) || defined(_M_IX86)
 
/* We require minimum SSE2 support on x86, so auto enable. */
#    define __KERNEL_SSE2__
#    ifdef WITH_KERNEL_SSE2
#      define WITH_CYCLES_OPTIMIZED_KERNEL_SSE2
#    endif
#    ifdef WITH_KERNEL_SSE3
#      define WITH_CYCLES_OPTIMIZED_KERNEL_SSE3
#    endif
 
/* x86-64
 *
 * Compile a regular (includes SSE2), SSE3, SSE 4.1, AVX and AVX2 kernel. */
 
#  elif defined(__x86_64__) || defined(_M_X64)
 
/* SSE2 is always available on x86-64 CPUs, so auto enable */
#    define __KERNEL_SSE2__
/* no SSE2 kernel on x86-64, part of regular kernel */
#    ifdef WITH_KERNEL_SSE3
#      define WITH_CYCLES_OPTIMIZED_KERNEL_SSE3
#    endif
#    ifdef WITH_KERNEL_SSE41
#      define WITH_CYCLES_OPTIMIZED_KERNEL_SSE41
#    endif
#    ifdef WITH_KERNEL_AVX
#      define WITH_CYCLES_OPTIMIZED_KERNEL_AVX
#    endif
#    ifdef WITH_KERNEL_AVX2
#      define WITH_CYCLES_OPTIMIZED_KERNEL_AVX2
#    endif
 
/* Arm Neon
 *
 * Compile a SSE4 kernel emulated with Neon. Most code is shared with
 * SSE, some specializations for performance and compatibility are made
 * made testing for __KERNEL_NEON__. */
 
#  elif defined(__ARM_NEON) && defined(WITH_SSE2NEON)
 
#    define __KERNEL_NEON__
#    define __KERNEL_SSE__
#    define __KERNEL_SSE2__
#    define __KERNEL_SSE3__
#    define __KERNEL_SSE41__
 
#  endif
 
#endif
 
#endif /* __UTIL_OPTIMIZATION_H__ */