mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 04:50:07 +00:00
220622dde5
This patch adds a new macro, libm_alias_finite, to define all _finite symbol. It sets all _finite symbol as compat symbol based on its first version (obtained from the definition at built generated first-versions.h). The <fn>f128_finite symbols were introduced in GLIBC 2.26 and so need special treatment in code that is shared between long double and float128. It is done by adding a list, similar to internal symbol redifinition, on sysdeps/ieee754/float128/float128_private.h. Alpha also needs some tricky changes to ensure we still emit 2 compat symbols for sqrt(f). Passes buildmanyglibc. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
/* soft-fp sqrt for _Float128
|
|
Return sqrt(a)
|
|
Copyright (C) 2017-2020 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
In addition to the permissions in the GNU Lesser General Public
|
|
License, the Free Software Foundation gives you unlimited
|
|
permission to link the compiled version of this file into
|
|
combinations with other programs, and to distribute those
|
|
combinations without any restriction coming from the use of this
|
|
file. (The Lesser General Public License restrictions do apply in
|
|
other respects; for example, they cover modification of the file,
|
|
and distribution when not linked into a combine executable.)
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <soft-fp.h>
|
|
#include <quad.h>
|
|
#include <libm-alias-finite.h>
|
|
|
|
__float128
|
|
__ieee754_sqrtf128 (__float128 a)
|
|
{
|
|
FP_DECL_EX;
|
|
FP_DECL_Q (A);
|
|
FP_DECL_Q (R);
|
|
__float128 r;
|
|
|
|
FP_INIT_ROUNDMODE;
|
|
FP_UNPACK_Q (A, a);
|
|
FP_SQRT_Q (R, A);
|
|
FP_PACK_Q (r, R);
|
|
FP_HANDLE_EXCEPTIONS;
|
|
return r;
|
|
}
|
|
libm_alias_finite (__ieee754_sqrtf128, __sqrtf128)
|