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33 lines
615 B
C
33 lines
615 B
C
// Denormals stripping.
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// These snippets should be common enough to be considered public domain.
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#ifndef DENORMALS_H
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#define DENORMALS_H
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#ifdef __SSE__
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#include <xmmintrin.h>
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#endif
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#ifdef __SSE3__
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#include <pmmintrin.h>
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#endif
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// Set denormal protection for this thread.
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// To be on the safe side, don't set the DAZ flag for SSE2 builds,
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// even if most SSE2 CPUs can handle it.
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void inline disable_denormals() {
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#ifdef __SSE3__
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/* DAZ flag */
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_MM_SET_DENORMALS_ZERO_MODE( _MM_DENORMALS_ZERO_ON );
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#endif
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#ifdef __SSE__
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/* FTZ flag */
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_MM_SET_FLUSH_ZERO_MODE( _MM_FLUSH_ZERO_ON );
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#endif
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}
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#endif
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