mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-27 17:40:37 +08:00
42 lines
1.3 KiB
C
42 lines
1.3 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/common/s_isnan.c in Newlib. */
|
||
|
|
|
||
|
|
#include "amdgcnmach.h"
|
||
|
|
|
||
|
|
DEF_VD_MATH_PRED (v64si, isnan, v64df x)
|
||
|
|
{
|
||
|
|
v64si hx, lx;
|
||
|
|
EXTRACT_WORDS (hx, lx, x);
|
||
|
|
hx &= 0x7fffffff;
|
||
|
|
hx |= (lx | (-lx)) >> 31;
|
||
|
|
hx = 0x7ff00000 - hx;
|
||
|
|
|
||
|
|
return (hx >> 31) != 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
DEF_VARIANTS (isnan, si, df)
|