mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-23 23:47:22 +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
783 B
C
29 lines
783 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/s_copysign.c in Newlib. */
|
|
|
|
#include "amdgcnmach.h"
|
|
|
|
DEF_VD_MATH_FUNC (v64df, copysign, v64df x, v64df y)
|
|
{
|
|
FUNCTION_INIT (v64df);
|
|
|
|
v64si hx, hy;
|
|
GET_HIGH_WORD(hx, x, NO_COND);
|
|
GET_HIGH_WORD(hy, y, NO_COND);
|
|
SET_HIGH_WORD(x, (hx & 0x7fffffff) | (hy & 0x80000000), NO_COND);
|
|
VECTOR_RETURN (x, NO_COND);
|
|
|
|
FUNCTION_RETURN;
|
|
}
|
|
|
|
DEF_VARIANTS2 (copysign, df, df) |