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Diffstat (limited to 'include/iprt/nocrt/amd64/math.h')
-rw-r--r-- | include/iprt/nocrt/amd64/math.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/include/iprt/nocrt/amd64/math.h b/include/iprt/nocrt/amd64/math.h new file mode 100644 index 00000000..c54e1d21 --- /dev/null +++ b/include/iprt/nocrt/amd64/math.h @@ -0,0 +1,105 @@ +/** @file + * IPRT / No-CRT - math.h, AMD inlined functions. + */ + +/* + * Copyright (C) 2006-2019 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef IPRT_INCLUDED_nocrt_amd64_math_h +#define IPRT_INCLUDED_nocrt_amd64_math_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <iprt/asm.h> + + +#if RT_INLINE_ASM_GNU_STYLE && defined(__SSE__) + +DECLINLINE(long double) inline_atan2l(long double lrd1, long double lrd2) +{ + long double lrdResult; + __asm__ __volatile__("fpatan" + : "=t" (lrdResult) + : "u" (lrd1), + "0" (lrd2) + : "st(1)"); + return lrdResult; +} + +DECLINLINE(long double) inline_rintl(long double lrd) +{ + long double lrdResult; + __asm__ __volatile__("frndint" + : "=t" (lrdResult) + : "0" (lrd)); + return lrdResult; +} + +DECLINLINE(float) inline_rintf(float rf) +{ + return (float)inline_rintl(rf); +} + +DECLINLINE(double) inline_rint(double rd) +{ + return (double)inline_rintl(rd); +} + +DECLINLINE(long double) inline_sqrtl(long double lrd) +{ + long double lrdResult; + __asm__ __volatile__("fsqrt" + : "=t" (lrdResult) + : "0" (lrd)); + return lrdResult; +} + +DECLINLINE(float) inline_sqrtf(float rf) +{ + return (float)inline_sqrtl(rf); +} + +DECLINLINE(double) inline_sqrt(double rd) +{ + return (double)inline_sqrtl(rd); +} + + +# undef atan2l +# define atan2l(lrd1, lrd2) inline_atan2l(lrd1, lrd2) +# undef rint +# define rint(rd) inline_rint(rd) +# undef rintf +# define rintf(rf) inline_rintf(rf) +# undef rintl +# define rintl(lrd) inline_rintl(lrd) +# undef sqrt +# define sqrt(rd) inline_sqrt(rd) +# undef sqrtf +# define sqrtf(rf) inline_sqrtf(rf) +# undef sqrtl +# define sqrtl(lrd) inline_sqrtl(lrd) + +#endif /* RT_INLINE_ASM_GNU_STYLE */ + +#endif /* !IPRT_INCLUDED_nocrt_amd64_math_h */ + |