mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 01:40:07 +00:00
5a82c74822
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
87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/* Total order operation. ldbl-96 version.
|
|
Copyright (C) 2016-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <float.h>
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
#include <libm-alias-ldouble.h>
|
|
#include <nan-high-order-bit.h>
|
|
#include <stdint.h>
|
|
#include <shlib-compat.h>
|
|
#include <first-versions.h>
|
|
|
|
int
|
|
__totalorderl (const long double *x, const long double *y)
|
|
{
|
|
int16_t expx, expy;
|
|
uint32_t hx, hy;
|
|
uint32_t lx, ly;
|
|
GET_LDOUBLE_WORDS (expx, hx, lx, *x);
|
|
GET_LDOUBLE_WORDS (expy, hy, ly, *y);
|
|
if (LDBL_MIN_EXP == -16382)
|
|
{
|
|
/* M68K variant: for the greatest exponent, the high mantissa
|
|
bit is not significant and both values of it are valid, so
|
|
set it before comparing. For the Intel variant, only one
|
|
value of the high mantissa bit is valid for each exponent, so
|
|
this is not necessary. */
|
|
if ((expx & 0x7fff) == 0x7fff)
|
|
hx |= 0x80000000;
|
|
if ((expy & 0x7fff) == 0x7fff)
|
|
hy |= 0x80000000;
|
|
}
|
|
#if HIGH_ORDER_BIT_IS_SET_FOR_SNAN
|
|
# error not implemented
|
|
#endif
|
|
uint32_t x_sign = expx >> 15;
|
|
uint32_t y_sign = expy >> 15;
|
|
expx ^= x_sign >> 17;
|
|
hx ^= x_sign;
|
|
lx ^= x_sign;
|
|
expy ^= y_sign >> 17;
|
|
hy ^= y_sign;
|
|
ly ^= y_sign;
|
|
return expx < expy || (expx == expy && (hx < hy || (hx == hy && lx <= ly)));
|
|
}
|
|
#ifdef SHARED
|
|
# define CONCATX(x, y) x ## y
|
|
# define CONCAT(x, y) CONCATX (x, y)
|
|
# define UNIQUE_ALIAS(name) CONCAT (name, __COUNTER__)
|
|
# define do_symbol(orig_name, name, aliasname) \
|
|
strong_alias (orig_name, name) \
|
|
versioned_symbol (libm, name, aliasname, GLIBC_2_31)
|
|
# undef weak_alias
|
|
# define weak_alias(name, aliasname) \
|
|
do_symbol (name, UNIQUE_ALIAS (name), aliasname);
|
|
#endif
|
|
libm_alias_ldouble (__totalorder, totalorder)
|
|
#if SHLIB_COMPAT (libm, GLIBC_2_25, GLIBC_2_31)
|
|
int
|
|
attribute_compat_text_section
|
|
__totalorder_compatl (long double x, long double y)
|
|
{
|
|
return __totalorderl (&x, &y);
|
|
}
|
|
#undef do_symbol
|
|
#define do_symbol(orig_name, name, aliasname) \
|
|
strong_alias (orig_name, name) \
|
|
compat_symbol (libm, name, aliasname, \
|
|
CONCAT (FIRST_VERSION_libm_, aliasname))
|
|
libm_alias_ldouble (__totalorder_compat, totalorder)
|
|
#endif
|