glibc/sysdeps/sparc/sparc32/fpu/s_signbit.S

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/* signbit(). sparc32 version.
Copyright (C) 2012-2018 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
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
ENTRY (__signbit)
retl
srl %o0, 31, %o0
END (__signbit)
/* On 32-bit the double version will also always work for
single-precision since in both cases the word with the
sign bit in it is passed always in register %o0. */
strong_alias (__signbit, __signbitf)
hidden_def (__signbitf)