Make common nextdown implementation generic.
With the exception of those machines using the ldbl-opt in an Implies file, this is a trivial transformation. nextdownl is not subject to the non-trivial versioning rules of the other generated functions, so to keep things simple, it is handled as a one-off case in ldbl-opt to preserve the existing behavior.
This commit is contained in:
Paul E. Murphy
parent
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commit
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12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2016-09-01 Paul E. Murphy <murphyp@linux.vnet.ibm.com>
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* math/Makefile: (gen-libm-calls): Add s_nextdown.
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(libm-calls): Remove above.
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* math/s_nextdown.c: Refactor into ...
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* math/s_nextdown_template.c: New file.
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* math/s_nextdownf.c: Removed.
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* math/s_nextdownl.c: Removed.
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* sysdeps/ieee754/ldbl-opt/s_nextdownl.c: New file.
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2016-09-01 Paul E. Murphy <murphyp@linux.vnet.ibm.com>
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* math/Makefile (gen-libm-calls): Add s_fdim.
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@ -49,7 +49,7 @@ gen-libm-calls = cargF conjF cimagF crealF cabsF s_cacosF \
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s_cacoshF s_ccosF s_ccoshF s_casinF s_csinF s_casinhF \
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k_casinhF s_csinhF k_casinhF s_csinhF s_catanhF s_catanF \
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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
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s_cpowF s_clog10F s_fdimF s_nextdownF
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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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@ -70,7 +70,7 @@ libm-calls = \
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s_fmaF s_lrintF s_llrintF s_lroundF s_llroundF e_exp10F w_log2F \
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s_issignalingF $(calls:s_%=m_%) x2y2m1F \
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gamma_productF lgamma_negF lgamma_productF \
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s_nextupF s_nextdownF $(gen-libm-calls)
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s_nextupF $(gen-libm-calls)
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libm-compat-calls-ldouble-yes = w_lgamma_compatl k_standardl
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libm-compat-calls = w_lgamma_compatf w_lgamma_compat k_standard k_standardf \
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@ -1,33 +0,0 @@
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/* Return the greatest floating-point number less than X.
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Copyright (C) 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.h>
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#include <math_private.h>
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/* Return the greatest floating-point number less than X. */
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double
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__nextdown (double x)
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{
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return -__nextup (-x);
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}
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weak_alias (__nextdown, nextdown)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__nextdown, __nextdownl)
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weak_alias (__nextdown, nextdownl)
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#endif
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@ -20,10 +20,10 @@
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#include <math_private.h>
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/* Return the greatest floating-point number less than X. */
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float
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__nextdownf (float x)
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FLOAT
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M_DECL_FUNC (__nextdown) (FLOAT x)
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{
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return -__nextupf (-x);
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return -M_SUF (__nextup) (-x);
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}
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weak_alias (__nextdownf, nextdownf)
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declare_mgen_alias (__nextdown, nextdown);
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@ -1,29 +0,0 @@
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/* Return the greatest floating-point number less than X.
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Copyright (C) 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.h>
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#include <math_private.h>
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/* Return the greatest floating-point number less than X. */
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long double
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__nextdownl (long double x)
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{
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return -__nextupl (-x);
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}
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weak_alias (__nextdownl, nextdownl)
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@ -0,0 +1,5 @@
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/* nextdownl is not subject to complex aliasing rules. It was
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added in glibc 2.24. */
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#define declare_mgen_alias(from, to) weak_alias (M_SUF (from), M_SUF (to))
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#include <math-type-macros-ldouble.h>
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#include <s_nextdown_template.c>
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