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f29b6f17e4
Continuing the move to use, within libm, public names for libm functions that can be inlined as built-in functions on many architectures, this patch moves calls to __rint functions to call the corresponding rint names instead, with asm redirection to __rint when the calls are not inlined. The x86_64 math_private.h is removed as no longer useful after this patch. This patch is relative to a tree with my floor patch <https://sourceware.org/ml/libc-alpha/2018-09/msg00148.html> applied, and much the same considerations arise regarding possibly replacing an IFUNC call with a direct inline expansion. Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (rint): Redirect using MATH_REDIRECT. * sysdeps/aarch64/fpu/s_rint.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/aarch64/fpu/s_rintf.c: Likewise. * sysdeps/alpha/fpu/s_rint.c: Likewise. * sysdeps/alpha/fpu/s_rintf.c: Likewise. * sysdeps/i386/fpu/s_rintl.c: Likewise. * sysdeps/ieee754/dbl-64/s_rint.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c: Likewise. * sysdeps/ieee754/float128/s_rintf128.c: Likewise. * sysdeps/ieee754/flt-32/s_rintf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_rintl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_rintl.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rint.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rintf.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rintl.c: Likewise. * sysdeps/powerpc/fpu/s_rint.c: Likewise. * sysdeps/powerpc/fpu/s_rintf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_rint.c: Likewise. * sysdeps/riscv/rvf/s_rintf.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_rint.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_rint.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/x86_64/fpu/math_private.h: Remove file. * math/e_scalb.c (invalid_fn): Use rint functions instead of __rint variants. * math/e_scalbf.c (invalid_fn): Likewise. * math/e_scalbl.c (invalid_fn): Likewise. * sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Likewise. * sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r): Likewise. * sysdeps/ieee754/k_standard.c (__kernel_standard): Likewise. * sysdeps/ieee754/k_standardl.c (__kernel_standard_l): Likewise. * sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/powerpc/powerpc32/fpu/s_llrint.c (__llrint): Likewise. * sysdeps/powerpc/powerpc32/fpu/s_llrintf.c (__llrintf): Likewise.
113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
/* Implement __kernel_standard_l.
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Copyright (C) 2012-2018 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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Parts based on k_standard.c from fdlibm: */
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/* @(#)k_standard.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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#include <math.h>
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#include <math-barriers.h>
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#include <math_private.h>
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#include <math-svid-compat.h>
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#include <fenv.h>
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#include <float.h>
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#include <errno.h>
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#if LIBM_SVID_COMPAT
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static double zero = 0.0;
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/* Handle errors for a libm function as specified by TYPE (see
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comments in k_standard.c for details), with arguments X and Y,
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returning the appropriate return value for that function. */
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long double
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__kernel_standard_l (long double x, long double y, int type)
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{
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double dx, dy;
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struct exception exc;
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fenv_t env;
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feholdexcept (&env);
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dx = x;
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dy = y;
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math_force_eval (dx);
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math_force_eval (dy);
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fesetenv (&env);
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switch (type)
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{
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case 221:
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/* powl (x, y) overflow. */
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exc.arg1 = dx;
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exc.arg2 = dy;
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exc.type = OVERFLOW;
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exc.name = (char *) "powl";
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if (_LIB_VERSION == _SVID_)
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{
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exc.retval = HUGE;
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y *= 0.5;
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if (x < zero && rintl (y) != y)
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exc.retval = -HUGE;
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}
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else
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{
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exc.retval = HUGE_VAL;
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y *= 0.5;
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if (x < zero && rintl (y) != y)
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exc.retval = -HUGE_VAL;
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}
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if (_LIB_VERSION == _POSIX_)
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__set_errno (ERANGE);
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else if (!matherr (&exc))
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__set_errno (ERANGE);
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return exc.retval;
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case 222:
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/* powl (x, y) underflow. */
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exc.arg1 = dx;
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exc.arg2 = dy;
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exc.type = UNDERFLOW;
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exc.name = (char *) "powl";
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exc.retval = zero;
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y *= 0.5;
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if (x < zero && rintl (y) != y)
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exc.retval = -zero;
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if (_LIB_VERSION == _POSIX_)
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__set_errno (ERANGE);
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else if (!matherr (&exc))
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__set_errno (ERANGE);
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return exc.retval;
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default:
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return __kernel_standard (dx, dy, type);
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}
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}
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#endif
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