atomic_prv_mfence_x86.h

/***************************************************************************
        Copyright (C) 2002-2015 Kentaro Kitagawa
                           kitagawa@phys.s.u-tokyo.ac.jp

        This program is free software; you can redistribute it and/or
        modify it under the terms of the GNU Library General Public
        License as published by the Free Software Foundation; either
        version 2 of the License, or (at your option) any later version.

        You should have received a copy of the GNU Library General
        Public License and a list of authors along with this program;
        see the files COPYING and AUTHORS.
 ***************************************************************************/
#ifndef ATOMIC_PRV_MFENCE_X86_H_
#define ATOMIC_PRV_MFENCE_X86_H_

#ifdef _MSC_VER
    #include <intrin.h>
#else
    #include <emmintrin.h>
    #include <xmmintrin.h>
    #include <x86intrin.h>
#endif

//! memory barriers.
inline void readBarrier() noexcept {
    _mm_lfence();
//  asm volatile( "lfence" ::: "memory" );
//  //  asm volatile ("lock; addl $0,0(%%esp)" ::: "memory");
}
inline void writeBarrier() noexcept {
    _mm_sfence();
//    asm volatile( "sfence" ::: "memory" );
//  //  asm volatile ("lock; addl $0,0(%%esp)" ::: "memory");
}
inline void memoryBarrier() noexcept {
    _mm_mfence();
//    asm volatile( "mfence" ::: "memory" );
//  //  asm volatile ("lock; addl $0,0(%%esp)" ::: "memory");
}

inline void pause4spin() noexcept {
    _mm_pause();
//  asm volatile( "pause" ::: "memory" );
}

#endif /*ATOMIC_PRV_MFENCE_X86_H_*/