1/* Copy a sign bit between floating-point values.
2   IBM extended format long double version.
3   Copyright (C) 2004-2021 Free Software Foundation, Inc.
4   This file is part of the GNU C Library.
5
6   The GNU C Library is free software; you can redistribute it and/or
7   modify it under the terms of the GNU Lesser General Public
8   License as published by the Free Software Foundation; either
9   version 2.1 of the License, or (at your option) any later version.
10
11   The GNU C Library is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   Lesser General Public License for more details.
15
16   You should have received a copy of the GNU Lesser General Public
17   License along with the GNU C Library; if not, see
18   <https://www.gnu.org/licenses/>.  */
19
20#include <sysdep.h>
21#include <math_ldbl_opt.h>
22
23ENTRY(__fabsl)
24/* long double [f1,f2] fabs (long double [f1,f2] x);
25   fabs(x,y) returns a value with the magnitude of x and
26   with the sign bit of y.  */
27#ifdef _ARCH_PPCGR
28	/* fsel available.  */
29	fmr	fp0,fp1
30#else
31	/* Use integer operations to test sign of high part to avoid
32	   exceptions on sNaNs.  */
33	stwu	r1,-16(r1)
34	cfi_adjust_cfa_offset (16)
35	stfd	fp1,8(r1)
36#endif
37	fabs	fp1,fp1
38#ifdef _ARCH_PPCGR
39	fneg	fp3,fp2
40	fsel	fp2,fp0,fp2,fp3
41#else
42	lwz	r3,8+HIWORD(r1)
43	cmpwi	cr6,r3,0
44	addi	r1,r1,16
45	cfi_adjust_cfa_offset (-16)
46	bgelr	cr6
47	fneg	fp2,fp2
48#endif
49	blr
50END (__fabsl)
51
52long_double_symbol (libm, __fabsl, fabsl)
53