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e18743072b
This implements a set of vectorized math routines to be used by the compiler auto-vectorizer. Versions for vectors with 2 lanes up to 64 lanes (in powers of 2) are provided. These routines are based on the scalar versions of the math routines in libm/common, libm/math and libm/mathfp. They make extensive use of the GCC C vector extensions and GCN-specific builtins in GCC.
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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* Copyright 2023 Siemens
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*
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*/
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/* Based on newlib/libm/math/wf_lgamma.c in Newlib. */
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#include "amdgcnmach.h"
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v64si v64sf_finitef_aux (v64sf x, v64si __mask);
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v64sf v64sf_lgammaf_r_aux (v64sf x, v64si *signgamp, v64si __mask);
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DEF_VS_MATH_FUNC (v64sf, lgammaf, v64sf x)
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{
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v64sf y = v64sf_lgammaf_r_aux(x, &(_REENT_V64SI_SIGNGAM(_V64_REENT)), __mask);
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if (ALL_ZEROES_P(v64sf_finitef_aux(y, __mask)) & !ALL_ZEROES_P(v64sf_finitef_aux(x, __mask))) {
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/* lgamma(finite) overflow */
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errno = ERANGE;
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}
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return y;
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}
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DEF_VARIANTS (lgammaf, sf, sf)
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