mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-23 23:47:22 +08:00
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.
74 lines
2.4 KiB
C
74 lines
2.4 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/ef_scalb.c in Newlib. */
|
|
|
|
#include "amdgcnmach.h"
|
|
|
|
v64si v64sf_isnanf (v64sf);
|
|
v64si v64sf_finitef (v64sf);
|
|
v64sf v64sf_rintf_aux (v64sf, v64si);
|
|
v64sf v64sf_scalbnf_aux (v64sf, v64si, v64si);
|
|
|
|
DEF_VS_MATH_FUNC (v64sf, scalbf, v64sf x, v64sf fn)
|
|
{
|
|
FUNCTION_INIT (v64sf);
|
|
|
|
VECTOR_IF (v64sf_isnanf(x) | v64sf_isnanf(fn), cond)
|
|
VECTOR_RETURN (x * fn, cond);
|
|
VECTOR_ENDIF
|
|
VECTOR_IF (~v64sf_finitef (fn), cond)
|
|
VECTOR_IF2 (fn > 0.0f, cond2, cond)
|
|
VECTOR_RETURN (x * fn, cond2);
|
|
VECTOR_ELSE2 (cond2, cond)
|
|
VECTOR_RETURN (x / (-fn), cond2);
|
|
VECTOR_ENDIF
|
|
VECTOR_ENDIF
|
|
VECTOR_IF (v64sf_rintf_aux (fn, __mask) != fn, cond)
|
|
VECTOR_RETURN ((fn-fn)/(fn-fn), cond);
|
|
VECTOR_ENDIF
|
|
#if INT_MAX > 65000
|
|
VECTOR_IF (fn > 65000.0f, cond)
|
|
VECTOR_RETURN (v64sf_scalbnf_aux (x, VECTOR_INIT (65000), __mask), cond);
|
|
VECTOR_ENDIF
|
|
VECTOR_IF (-fn > 65000.0f, cond)
|
|
VECTOR_RETURN (v64sf_scalbnf_aux (x, VECTOR_INIT (-65000), __mask), cond);
|
|
VECTOR_ENDIF
|
|
#else
|
|
VECTOR_IF (fn > 32000.0f, cond)
|
|
VECTOR_RETURN (v64sf_scalbnf_aux (x, VECTOR_INIT (32000), __mask), cond);
|
|
VECTOR_ENDIF
|
|
VECTOR_IF (-fn > 32000.0f, cond)
|
|
VECTOR_RETURN (v64sf_scalbnf_aux (x, VECTOR_INIT (-32000), __mask), cond);
|
|
VECTOR_ENDIF
|
|
#endif
|
|
VECTOR_RETURN (v64sf_scalbnf_aux (x, __builtin_convertvector (fn, v64si), __mask),
|
|
NO_COND);
|
|
|
|
FUNCTION_RETURN;
|
|
}
|
|
|
|
DEF_VARIANTS2 (scalbf, sf, sf)
|