SHOGUN
6.0.0
src
shogun
lib
cpu.h
Go to the documentation of this file.
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/*
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* Copyright (c) The Shogun Machine Learning Toolbox
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* Written (w) 2017 - Viktor Gal
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those
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* of the authors and should not be interpreted as representing official policies,
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* either expressed or implied, of the Shogun Development Team.
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*/
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#ifndef __CPU_INFO_H__
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#define __CPU_INFO_H__
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#include <
shogun/lib/common.h
>
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SG_FORCED_INLINE
static
void
CpuRelax
()
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{
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#ifdef _MSC_VER
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_mm_pause();
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#elif defined(__i386__) || defined(__x86_64__)
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asm
volatile
(
"pause"
);
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#elif defined(__arm__) || defined(__aarch64__)
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asm
volatile
(
"yield"
);
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#elif defined(__powerpc__) || defined(__ppc__)
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asm
volatile
(
"or 27,27,27"
);
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#elif defined(__s390__) || defined(__s390x__)
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asm
volatile
(
""
: : :
"memory"
);
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#else
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#warning "Unknown architecture, defaulting to delaying loop."
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static
uint32_t bar = 13;
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static
uint32_t* foo = &bar;
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for
(
unsigned
int
i = 0; i < 100000; i++)
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{
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*foo = (*foo * 33) + 17;
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}
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#endif
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}
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#endif
/* __CPU_INFO_H__ */
SG_FORCED_INLINE
#define SG_FORCED_INLINE
Definition:
common.h:91
CpuRelax
static SG_FORCED_INLINE void CpuRelax()
Definition:
cpu.h:36
common.h
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