mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-02-24 09:39:33 +08:00
125e39bfea
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.
29 lines
792 B
C
29 lines
792 B
C
/*
|
|
* ====================================================
|
|
* 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/sf_copysign.c in Newlib. */
|
|
|
|
#include "amdgcnmach.h"
|
|
|
|
DEF_VS_MATH_FUNC (v64sf, copysignf, v64sf x, v64sf y)
|
|
{
|
|
FUNCTION_INIT (v64sf);
|
|
|
|
v64si ix, iy;
|
|
GET_FLOAT_WORD (ix, x, NO_COND);
|
|
GET_FLOAT_WORD (iy, y, NO_COND);
|
|
SET_FLOAT_WORD (x, (ix & 0x7fffffff) | (iy & 0x80000000), NO_COND);
|
|
VECTOR_RETURN (x, NO_COND);
|
|
|
|
FUNCTION_RETURN;
|
|
}
|
|
|
|
DEF_VARIANTS2 (copysignf, sf, sf) |