mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +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
59 lines
1.5 KiB
ArmAsm
59 lines
1.5 KiB
ArmAsm
/* Compute maximum of two numbers, regarding NaN as missing argument.
|
|
Copyright (C) 1997-2022 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/>. */
|
|
|
|
#include <sysdep.h>
|
|
#include <libm-alias-ldouble.h>
|
|
|
|
.text
|
|
ENTRY(__fmaxl)
|
|
fldt 8(%rsp) // x
|
|
fldt 24(%rsp) // x : y
|
|
|
|
fucomi %st(1), %st
|
|
jp 2f
|
|
fcmovb %st(1), %st
|
|
|
|
fstp %st(1)
|
|
|
|
ret
|
|
|
|
2: // Unordered.
|
|
fucomi %st(0), %st
|
|
jp 3f
|
|
// st(1) is a NaN; st(0) is not. Test if st(1) is signaling.
|
|
testb $0x40, 15(%rsp)
|
|
jz 4f
|
|
fstp %st(1)
|
|
ret
|
|
|
|
3: // st(0) is a NaN; st(1) may or may not be.
|
|
fxch
|
|
fucomi %st(0), %st
|
|
jp 4f
|
|
// st(1) is a NaN; st(0) is not. Test if st(1) is signaling.
|
|
testb $0x40, 31(%rsp)
|
|
jz 4f
|
|
fstp %st(1)
|
|
ret
|
|
|
|
4: // Both arguments are NaNs, or one is a signaling NaN.
|
|
faddp
|
|
ret
|
|
END(__fmaxl)
|
|
libm_alias_ldouble (__fmax, fmax)
|