mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/* lrintf() - S390 version.
|
|
Copyright (C) 2019-2022 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/>. */
|
|
|
|
#ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
|
|
# include <math.h>
|
|
# include <libm-alias-float.h>
|
|
|
|
/* The sizeof (long int) differs between s390x (8byte) and s390 (4byte).
|
|
Thus we need different instructions as the target size is encoded there.
|
|
Note: On s390 this instruction is only used if build with -mzarch. */
|
|
# ifdef __s390x__
|
|
# define INSN "cgebra"
|
|
# else
|
|
# define INSN "cfebra"
|
|
# endif
|
|
|
|
long int
|
|
__lrintf (float x)
|
|
{
|
|
long int y;
|
|
/* The z196 zarch "convert to fixed" (cgebra) instruction is rounding
|
|
according to current rounding mode (M3-field: 0).
|
|
First convert x with suppressed inexact exception and check if the
|
|
resulting value is beyond the target limits (indicated by cc=3;
|
|
Note: a nan is also indicated by cc=3).
|
|
If the resulting value is within the target limits, redo
|
|
without suppressing the inexact exception. */
|
|
__asm__ (INSN " %0,0,%1,4 \n\t"
|
|
"jo 1f \n\t"
|
|
INSN " %0,0,%1,0 \n\t"
|
|
"1:"
|
|
: "=&d" (y) : "f" (x) : "cc");
|
|
return y;
|
|
}
|
|
libm_alias_float (__lrint, lrint)
|
|
|
|
#else
|
|
# include <sysdeps/ieee754/flt-32/s_lrintf.c>
|
|
#endif
|