83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*
|
|
* Copyright 2023 Siemens
|
|
*
|
|
* The authors hereby grant permission to use, copy, modify, distribute,
|
|
* and license this software and its documentation for any purpose, provided
|
|
* that existing copyright notices are retained in all copies and that this
|
|
* notice is included verbatim in any distributions. No written agreement,
|
|
* license, or royalty fee is required for any of the authorized uses.
|
|
* Modifications to this software may be copyrighted by their authors
|
|
* and need not follow the licensing terms described here, provided that
|
|
* the new terms are clearly indicated on the first page of each file where
|
|
* they apply.
|
|
*/
|
|
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
/* Based on newlib/libm/mathfp/e_remainder.c in Newlib. */
|
|
|
|
#include "amdgcnmach.h"
|
|
|
|
v64df v64df_fmod_aux (v64df, v64df, v64di);
|
|
|
|
#if defined (__has_builtin) && __has_builtin (__builtin_gcn_fabsv)
|
|
|
|
DEF_VD_MATH_FUNC (v64df, remainder, v64df x, v64df p)
|
|
{
|
|
FUNCTION_INIT (v64df);
|
|
|
|
v64si hx, lx;
|
|
EXTRACT_WORDS (hx, lx, x);
|
|
v64si hp, lp;
|
|
EXTRACT_WORDS (hp, lp, p);
|
|
v64si sx = hx & 0x80000000;
|
|
hp &= 0x7fffffff;
|
|
hx &= 0x7fffffff;
|
|
|
|
/* purge off exception values */
|
|
VECTOR_RETURN ((x * p) / (x * p), ((hp | lp) == 0) | ((hx >= 0x7ff00000)
|
|
| /* x not finite */
|
|
((hp >= 0x7ff00000) & /* p is NaN */
|
|
(((hp - 0x7ff00000) | lp) != 0))));
|
|
|
|
VECTOR_COND_MOVE (x, v64df_fmod_aux (x, p+p, __mask), hp <= 0x7fdfffff); // now x < 2p
|
|
|
|
VECTOR_RETURN (0.0 * x, ((hx-hp)|(lx-lp))==0);
|
|
|
|
x = __builtin_gcn_fabsv (x);
|
|
p = __builtin_gcn_fabsv (p);
|
|
|
|
VECTOR_IF (hp < 0x00200000, cond)
|
|
VECTOR_IF2 (x + x > p, cond2, __builtin_convertvector(cond, v64di))
|
|
VECTOR_COND_MOVE (x, x - p, cond2);
|
|
VECTOR_COND_MOVE (x, x - p, cond2 & (x + x >= p));
|
|
VECTOR_ENDIF
|
|
VECTOR_ELSE (cond)
|
|
v64df p_half = 0.5 * p;
|
|
VECTOR_IF2 (x > p_half, cond2, __builtin_convertvector(cond, v64di))
|
|
VECTOR_COND_MOVE (x, x - p, cond2);
|
|
VECTOR_COND_MOVE (x, x - p, cond2 & (x >= p_half));
|
|
VECTOR_ENDIF
|
|
VECTOR_ENDIF
|
|
|
|
GET_HIGH_WORD (hx, x, NO_COND);
|
|
SET_HIGH_WORD (x, hx ^ sx, NO_COND);
|
|
|
|
VECTOR_RETURN (x, NO_COND);
|
|
|
|
FUNCTION_RETURN;
|
|
}
|
|
|
|
DEF_VARIANTS2 (remainder, df, df)
|
|
|
|
#endif
|