glibc/sysdeps/alpha/fpu/s_copysign.c

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/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson.
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
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
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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
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
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<https://www.gnu.org/licenses/>. */
Use copysign functions not __copysign functions in glibc libm. 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 __copysign functions to call the corresponding copysign names instead, with asm redirection to __copysign when the calls are not inlined (all cases are inlined except for IBM long double for powerpc soft-float / e500v1). This eliminates the need for an inline function defining __copysign in terms of __builtin_copysign. Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT_BINARY_ARGS): New macro. [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (copysign): Redirect using MATH_REDIRECT. * sysdeps/alpha/fpu/s_copysign.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/alpha/fpu/s_copysignf.c: Likewise. * sysdeps/ieee754/dbl-64/s_copysign.c: Likewise. * sysdeps/ieee754/float128/s_copysignf128.c: Likewise. * sysdeps/ieee754/flt-32/s_copysignf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_copysignl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_copysignl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_copysignl.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c: Likewise. * sysdeps/riscv/rvd/s_copysign.c: Likewise. * sysdeps/riscv/rvf/s_copysignf.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.c: Likewise. * sysdeps/generic/math_private_calls.h [!__MATH_DECLARING_LONG_DOUBLE || !NO_LONG_DOUBLE] (__copysign): Do not declare and define as an inline function. * math/divtc3.c (__divtc3): Use copysign functions instead of __copysign variants. * math/multc3.c (__multc3): Likewise. * sysdeps/generic/math-type-macros.h (M_COPYSIGN): Likewise. * sysdeps/ieee754/dbl-64/e_atan2.c (signArctan2): Likewise. * sysdeps/ieee754/dbl-64/e_atanh.c (__ieee754_atanh): Likewise. * sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Likewise. * sysdeps/ieee754/dbl-64/e_jn.c (__ieee754_jn): Likewise. (__ieee754_yn): Likewise. * sysdeps/ieee754/dbl-64/s_asinh.c (__asinh): Likewise. * sysdeps/ieee754/dbl-64/s_atan.c (__signArctan): Likewise. * sysdeps/ieee754/dbl-64/s_scalbln.c (__scalbln): Likewise. * sysdeps/ieee754/dbl-64/s_scalbn.c (__scalbn): Likewise. * sysdeps/ieee754/dbl-64/s_sin.c (do_sin): Likewise. (__sin): Likewise. * sysdeps/ieee754/dbl-64/s_sincos.c (__sincos): Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c (__nearbyint): Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_scalbln.c (__scalbln): Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_scalbn.c (__scalbn): Likewise. * sysdeps/ieee754/flt-32/e_atanhf.c (__ieee754_atanhf): Likewise. * sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r): Likewise. * sysdeps/ieee754/flt-32/e_jnf.c (__ieee754_jnf): Likewise. (__ieee754_ynf): Likewise. * sysdeps/ieee754/flt-32/s_asinhf.c (__asinhf): Likewise. * sysdeps/ieee754/flt-32/s_scalbnf.c (__scalbnf): Likewise. * sysdeps/ieee754/k_standard.c (__kernel_standard): Likewise. * sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_jnl): Likewise. (__ieee754_ynl): Likewise. * sysdeps/ieee754/ldbl-128/s_scalblnl.c (__scalblnl): Likewise. * sysdeps/ieee754/ldbl-128/s_scalbnl.c (__scalbnl): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_jnl): Likewise. (__ieee754_ynl): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fmal.c (__fmal): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_scalblnl.c (__scalblnl): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_scalbnl.c (__scalbnl): Likewise. * sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_jnl): Likewise. (__ieee754_ynl) * sysdeps/ieee754/ldbl-96/s_asinhl.c (__asinhl): Likewise. * sysdeps/ieee754/ldbl-96/s_scalblnl.c (__scalblnl): Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-copysign.c (copysignl): Likewise. * sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise. * sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
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#define NO_MATH_REDIRECT
#include <math.h>
#include <math_ldbl_opt.h>
Use libm_alias_double for alpha. Continuing the preparation for additional _FloatN / _FloatNx function aliases, this patch makes alpha libm function implementations use libm_alias_double to define function aliases. This also simplifies the code because the compatibility for long double = double is handled by libm_alias_double instead of locally in each source file. Tested with build-many-glibcs.py for alpha-linux-gnu that installed stripped shared libraries are unchanged by the patch. * sysdeps/alpha/fpu/s_ceil.c: Include <libm-alias-double.h>. (ceil): Define using libm_alias_double. * sysdeps/alpha/fpu/s_copysign.c: Include <libm-alias-double.h>. (copysign): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fabs.c: Include <libm-alias-double.h>. (fabs): Define using libm_alias_double. * sysdeps/alpha/fpu/s_floor.c: Include <libm-alias-double.h>. (floor): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fmax.S: Include <libm-alias-double.h>. (fmax): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fmin.S: Include <libm-alias-double.h>. (fmin): Define using libm_alias_double. * sysdeps/alpha/fpu/s_lrint.c: Include <libm-alias-double.h>. (lrint): Define using libm_alias_double. (llrint): Likewise. * sysdeps/alpha/fpu/s_lround.c: Include <libm-alias-double.h>. (lround): Define using libm_alias_double. (llround): Likewise. * sysdeps/alpha/fpu/s_rint.c: Include <libm-alias-double.h>. (rint): Define using libm_alias_double. * sysdeps/alpha/fpu/s_trunc.c: Include <libm-alias-double.h>. (trunc): Define using libm_alias_double.
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#include <libm-alias-double.h>
double
__copysign (double x, double y)
{
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return __builtin_copysign (x, y);
}
Use libm_alias_double for alpha. Continuing the preparation for additional _FloatN / _FloatNx function aliases, this patch makes alpha libm function implementations use libm_alias_double to define function aliases. This also simplifies the code because the compatibility for long double = double is handled by libm_alias_double instead of locally in each source file. Tested with build-many-glibcs.py for alpha-linux-gnu that installed stripped shared libraries are unchanged by the patch. * sysdeps/alpha/fpu/s_ceil.c: Include <libm-alias-double.h>. (ceil): Define using libm_alias_double. * sysdeps/alpha/fpu/s_copysign.c: Include <libm-alias-double.h>. (copysign): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fabs.c: Include <libm-alias-double.h>. (fabs): Define using libm_alias_double. * sysdeps/alpha/fpu/s_floor.c: Include <libm-alias-double.h>. (floor): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fmax.S: Include <libm-alias-double.h>. (fmax): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fmin.S: Include <libm-alias-double.h>. (fmin): Define using libm_alias_double. * sysdeps/alpha/fpu/s_lrint.c: Include <libm-alias-double.h>. (lrint): Define using libm_alias_double. (llrint): Likewise. * sysdeps/alpha/fpu/s_lround.c: Include <libm-alias-double.h>. (lround): Define using libm_alias_double. (llround): Likewise. * sysdeps/alpha/fpu/s_rint.c: Include <libm-alias-double.h>. (rint): Define using libm_alias_double. * sysdeps/alpha/fpu/s_trunc.c: Include <libm-alias-double.h>. (trunc): Define using libm_alias_double.
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libm_alias_double (__copysign, copysign)
#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
#endif