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Add a generic significand implementation
Create a template for significand. * math/Makefile (libm-calls): Move s_significandF to... (gen-libm-calls): ... here. * math/s_significand_template.c: New file. * math/s_significand.c: Removed. * math/s_significandf.c: Removed. * math/s_significandl.c: Removed. * sysdeps/ieee754/ldbl-opt/s_significand.c: Removed. * sysdeps/ieee754/ldbl-opt/s_significandl.c: Removed. Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
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Tulio Magno Quites Machado Filho
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@ -1,5 +1,14 @@
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2018-06-20 Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
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* math/Makefile (libm-calls): Move s_significandF to...
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(gen-libm-calls): ... here.
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* math/s_significand_template.c: New file.
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* math/s_significand.c: Removed.
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* math/s_significandf.c: Removed.
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* math/s_significandl.c: Removed.
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* sysdeps/ieee754/ldbl-opt/s_significand.c: Removed.
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* sysdeps/ieee754/ldbl-opt/s_significandl.c: Removed.
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* math/e_exp2_template.c (declare_mgen_finite_alias,
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declare_mgen_finite_alias_s, declare_mgen_finite_alias_x): Move to...
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* sysdeps/generic/math-type-macros.h (declare_mgen_finite_alias,
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@ -53,7 +53,8 @@ gen-libm-calls = cargF conjF cimagF crealF cabsF s_cacosF \
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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 s_nextdownF s_fmaxF s_fminF \
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s_nanF s_iseqsigF s_canonicalizeF w_ilogbF w_llogbF \
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s_nanF s_iseqsigF s_canonicalizeF s_significandF \
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w_ilogbF w_llogbF \
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w_log1pF w_scalblnF s_fmaxmagF s_fminmagF w_acosF \
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w_acoshF w_asinF w_atan2F w_atanhF w_coshF w_exp10F \
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w_exp2F w_fmodF w_hypotF w_j0F w_j1F w_jnF w_logF \
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@ -69,7 +70,7 @@ libm-calls = \
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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 \
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s_significandF s_sinF s_tanF s_tanhF \
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s_sinF s_tanF s_tanhF \
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s_fpclassifyF s_truncF \
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s_remquoF e_log2F s_roundF s_nearbyintF s_sincosF \
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s_fmaF s_lrintF s_llrintF s_lroundF s_llroundF e_exp10F \
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@ -1,34 +0,0 @@
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/* @(#)s_signif.c 5.1 93/09/24 */
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: s_significand.c,v 1.6 1995/05/10 20:48:11 jtc Exp $";
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#endif
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/*
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* significand(x) computes just
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* scalb(x, (double) -ilogb(x)),
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* for exercising the fraction-part(F) IEEE 754-1985 test vector.
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*/
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#include <math.h>
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#include <math_private.h>
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double __significand(double x)
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{
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return __ieee754_scalb(x,(double) -__ilogb(x));
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}
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weak_alias (__significand, significand)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__significand, __significandl)
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weak_alias (__significand, significandl)
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#endif
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33
math/s_significand_template.c
Normal file
33
math/s_significand_template.c
Normal file
@ -0,0 +1,33 @@
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/* Return the mantissa of a floating-point number.
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Copyright (C) 2018 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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/*
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* significand(x) computes just
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* scalb(x, (FLOAT) - ilogb(x)),
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* for exercising the fraction-part(F) IEEE 754-1985 test vector.
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*/
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#include <math.h>
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#include <math_private.h>
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FLOAT
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M_DECL_FUNC (__significand) (FLOAT x)
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{
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return M_SUF (__ieee754_scalb) (x,(FLOAT) - M_SUF (__ilogb) (x));
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}
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declare_mgen_alias (__significand, significand)
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@ -1,27 +0,0 @@
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/* s_significandf.c -- float version of s_significand.c.
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* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: s_significandf.c,v 1.3 1995/05/10 20:48:13 jtc Exp $";
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#endif
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#include <math.h>
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#include <math_private.h>
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float __significandf(float x)
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{
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return __ieee754_scalbf(x,(float) -__ilogbf(x));
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}
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weak_alias (__significandf, significandf)
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@ -1,34 +0,0 @@
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/* s_significandl.c -- long double version of s_significand.c.
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* Conversion to long double by Ulrich Drepper,
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* Cygnus Support, drepper@cygnus.com.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: $";
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#endif
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/*
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* significandl(x) computes just
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* scalbl(x, (long double) -ilogbl(x)),
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* for exercising the fraction-part(F) IEEE 754-1985 test vector.
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*/
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#include <math.h>
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#include <math_private.h>
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long double __significandl(long double x)
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{
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return __ieee754_scalbl(x,(long double) -__ilogbl(x));
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}
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weak_alias (__significandl, significandl)
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@ -1,5 +0,0 @@
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#include <math_ldbl_opt.h>
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#include <math/s_significand.c>
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#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
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compat_symbol (libm, __significand, significandl, GLIBC_2_0);
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#endif
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@ -1,5 +0,0 @@
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#include <math_ldbl_opt.h>
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#undef weak_alias
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#define weak_alias(n,a)
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#include <math/s_significandl.c>
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long_double_symbol (libm, __significandl, significandl);
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