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Make w_scalbln type-generic
This patch converts the wrapper scalbln (which set errno directly rather than doing anything with __kernel_standard) to use the type-generic template machinery, in the same way that has been done for ldexp. Tested for powerpc64le, s390, and x86_64.
This commit is contained in:
Gabriel F. T. Gomes
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commit
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12
ChangeLog
12
ChangeLog
@ -1,3 +1,15 @@
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2016-12-16 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
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* math/Makefile (gen-libm-calls): Remove w_scalblnF.
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(libm-calls): Add w_scalblnF.
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* math/w_scalbln.c: Remove.
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* math/w_scalblnf.c: Likewise.
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* math/w_scalblnl.c: Likewise.
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* math/w_scalbln_template.c: New file with type-generic
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implementation based on math/w_scalbln.c.
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* sysdeps/ieee754/ldbl-128ibm/w_scalblnl.c: Remove.
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* sysdeps/ieee754/ldbl-64-128/w_scalblnl.c: Use new template.
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2016-12-15 Joseph Myers <joseph@codesourcery.com>
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[BZ #20947]
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@ -54,7 +54,7 @@ gen-libm-calls = cargF conjF cimagF crealF cabsF s_cacosF \
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s_ctanF s_ctanhF s_cexpF s_clogF s_cprojF s_csqrtF \
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s_cpowF s_clog10F s_fdimF s_nextdownF s_fmaxF s_fminF \
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s_nanF s_iseqsigF s_canonicalizeF w_ilogbF w_llogbF \
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w_log1pF
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w_log1pF w_scalblnF
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libm-calls = \
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e_acosF e_acoshF e_asinF e_atan2F e_atanhF e_coshF e_expF e_fmodF \
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@ -64,7 +64,7 @@ libm-calls = \
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k_cosF k_sinF k_tanF s_asinhF s_atanF s_cbrtF \
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s_ceilF s_cosF s_erfF s_expm1F s_fabsF \
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s_floorF s_log1pF s_logbF \
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s_nextafterF s_nexttowardF s_rintF s_scalblnF w_scalblnF \
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s_nextafterF s_nexttowardF s_rintF s_scalblnF \
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s_significandF s_sinF s_tanF s_tanhF w_acosF w_acoshF w_asinF \
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w_atan2F w_atanhF w_coshF w_expF w_exp2F w_exp10F w_fmodF \
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w_tgammaF w_hypotF w_j0F w_j1F w_jnF w_lgammaF w_lgammaF_r \
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@ -20,21 +20,22 @@
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#include <math.h>
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#include <math_private.h>
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double
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__w_scalbln (double x, long int n)
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FLOAT
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M_DECL_FUNC (__w_scalbln) (FLOAT x, long int n)
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{
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if (!isfinite (x) || x == 0.0)
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if (!isfinite (x) || x == 0)
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return x + x;
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x = __scalbln (x, n);
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x = M_SUF (__scalbln) (x, n);
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if (!isfinite (x) || x == 0.0)
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if (!isfinite (x) || x == 0)
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__set_errno (ERANGE);
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return x;
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}
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weak_alias (__w_scalbln, scalbln)
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#ifdef NO_LONG_DOUBLE
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weak_alias (__w_scalbln, scalblnl)
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#endif
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/* Define strong_alias to nothing because we don't want
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declare_mgen_alias to create a strong alias for scalblnl. */
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#undef strong_alias
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#define strong_alias(name, alias_name)
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declare_mgen_alias (__w_scalbln, scalbln)
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@ -1,36 +0,0 @@
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/* Wrapper for __scalblnf handles setting errno.
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Copyright (C) 2014-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <math.h>
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#include <math_private.h>
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float
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__w_scalblnf (float x, long int n)
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{
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if (!isfinite (x) || x == 0.0f)
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return x + x;
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x = __scalblnf (x, n);
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if (!isfinite (x) || x == 0.0f)
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__set_errno (ERANGE);
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return x;
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}
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weak_alias (__w_scalblnf, scalblnf)
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@ -1,36 +0,0 @@
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/* Wrapper for __scalblnl handles setting errno.
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Copyright (C) 2014-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <math.h>
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#include <math_private.h>
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long double
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__w_scalblnl (long double x, long int n)
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{
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if (!isfinite (x) || x == 0.0L)
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return x + x;
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x = __scalblnl (x, n);
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if (!isfinite (x) || x == 0.0L)
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__set_errno (ERANGE);
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return x;
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}
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weak_alias (__w_scalblnl, scalblnl)
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@ -1,23 +0,0 @@
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/* Wrapper for __scalblnl handles setting errno.
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Copyright (C) 2014-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <math_ldbl_opt.h>
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#undef weak_alias
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#define weak_alias(name, alias)
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#include <math/w_scalblnl.c>
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long_double_symbol (libm, __w_scalblnl, scalblnl);
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@ -16,10 +16,9 @@
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <math_ldbl_opt.h>
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#undef weak_alias
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#define weak_alias(name, alias)
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#include <math/w_scalblnl.c>
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#define declare_mgen_alias(from, to)
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#include <math-type-macros-ldouble.h>
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#include <w_scalbln_template.c>
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#if IS_IN (libm)
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long_double_symbol (libm, __w_scalblnl, scalblnl);
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#else
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