mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 21:20:18 +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
78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
/* lround function. PowerPC32 version.
|
|
Copyright (C) 2004-2019 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/>. */
|
|
|
|
#define lroundf __redirect_lroundf
|
|
#define __lroundf __redirect___lroundf
|
|
#include <math.h>
|
|
#undef lroundf
|
|
#undef __lroundf
|
|
#include <libm-alias-float.h>
|
|
#include <libm-alias-double.h>
|
|
|
|
long int
|
|
__lround (double x)
|
|
{
|
|
#ifdef _ARCH_PWR5X
|
|
x = round (x);
|
|
#else
|
|
/* Ieee 1003.1 lround function. ieee specifies "round to the nearest
|
|
integer value, rounding halfway cases away from zero, regardless of
|
|
the current rounding mode." however powerpc architecture defines
|
|
"round to nearest" as "choose the best approximation. in case of a
|
|
tie, choose the one that is even (least significant bit o).".
|
|
so we can't use the powerpc "round to nearest" mode. instead we set
|
|
"round toward zero" mode and round by adding +-0.5 before rounding
|
|
to the integer value. it is necessary to detect when x is
|
|
(+-)0x1.fffffffffffffp-2 because adding +-0.5 in this case will
|
|
cause an erroneous shift, carry and round. we simply return 0 if
|
|
0.5 > x > -0.5. */
|
|
|
|
double ax = fabs (x);
|
|
|
|
if (ax < 0.5)
|
|
return 0;
|
|
|
|
if (x >= 0x7fffffff.8p0 || x <= -0x80000000.8p0)
|
|
x = (x < 0.0) ? -0x1p+52 : 0x1p+52;
|
|
else
|
|
{
|
|
/* Test whether an integer to avoid spurious "inexact". */
|
|
double t = ax + 0x1p+52;
|
|
t = t - 0x1p+52;
|
|
if (ax != t)
|
|
{
|
|
ax = ax + 0.5;
|
|
if (x < 0.0)
|
|
ax = -fabs (ax);
|
|
x = ax;
|
|
}
|
|
}
|
|
#endif
|
|
/* Force evaluation of values larger than long int, so invalid
|
|
exceptions are raise. */
|
|
long long int ret;
|
|
asm ("fctiwz %0, %1" : "=d" (ret) : "d" (x));
|
|
return ret;
|
|
}
|
|
#ifndef __lround
|
|
libm_alias_double (__lround, lround)
|
|
|
|
strong_alias (__lround, __lroundf)
|
|
libm_alias_float (__lround, lround)
|
|
#endif
|