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ldbl-128ibm-compat: Provide a scalb implementation

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Reuse the template in order to provide the redirect for
scalbl to __scalbieee128, but avoid any extra aliasing
as this is intended to support long double redirects only.
This commit is contained in:
Tulio Magno Quites Machado Filho 2018-06-18 19:02:08 -03:00 committed by Paul E. Murphy
parent c624d23260
commit 2b7dc93f82
3 changed files with 54 additions and 0 deletions
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1
sysdeps/ieee754/ldbl-128ibm-compat/Versions
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@ -90,6 +90,7 @@ libm {
__rintieee128;
__roundevenieee128;
__roundieee128;
__scalbieee128;
__scalblnieee128;
__scalbnieee128;
__setpayloadieee128;

26
sysdeps/ieee754/ldbl-128ibm-compat/e_scalbf128.c Normal file
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@ -0,0 +1,26 @@
/* Multiply _Float128 by integral power of 2
Copyright (C) 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.
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
<http://www.gnu.org/licenses/>. */
#include <math-type-macros-float128.h>
/* *_finite symbols are deprecated since this layer was introduced.
No symbols are needed. */
#undef declare_mgen_finite_alias
#define declare_mgen_finite_alias(from, to)
#include <math/e_scalb_template.c>

27
sysdeps/ieee754/ldbl-128ibm-compat/w_scalbf128.c Normal file
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@ -0,0 +1,27 @@
/* Multiply _Float128 by integral power of 2
Copyright (C) 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.
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
<http://www.gnu.org/licenses/>. */
#include <float128_private.h>
#include <math-type-macros-float128.h>
#undef declare_mgen_alias
#define declare_mgen_alias(a,b)
#define __ieee754_scalbl __ieee754_scalbf128
#include <w_scalb_template.c>
libm_alias_float128_other_r_ldbl (__scalb, scalb,)