54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/*
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* Author: Harry van Haaren 2013
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* harryhaaren@gmail.com
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LUPPP_DENORMALS_H
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#define LUPPP_DENORMALS_H
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#include <iostream>
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#include "debug.hxx"
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#ifdef __SSE__
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/* On Intel set FZ (Flush to Zero) and DAZ (Denormals Are Zero)
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flags to avoid costly denormals */
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#ifdef __SSE3__
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#include <pmmintrin.h>
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inline void AVOIDDENORMALS()
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{
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//std::cout << "Denormals: FZ DAZ using SSE3" << std::endl;
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_MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
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_MM_SET_DENORMALS_ZERO_MODE(_MM_DENORMALS_ZERO_ON);
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}
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#else
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#include <xmmintrin.h>
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inline void AVOIDDENORMALS()
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{
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//std::cout << "Denormals: FZ" << std::endl;
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_MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
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}
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#endif //__SSE3__
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#else
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inline void AVOIDDENORMALS()
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{
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LUPPP_NOTE( "Denormals: Warning! No protection" );
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}
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#endif //__SSE__
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#endif // LUPPP_DENORMALS_H
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