1
0
mirror of https://sourceware.org/git/glibc.git synced 2025-11-15 15:21:18 +03:00
Files
glibc/math/w_acoshf_compat.c
Adhemerval Zanella 8facb464b4 math: Remove the SVID error handling from acoshf
It improves latency for about 3-7% and throughput for about 5-10%.

Tested on x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>
2025-10-30 15:41:24 -03:00

37 lines
1.2 KiB
C

/* Copyright (C) 2011-2025 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 <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <libm-alias-float.h>
#if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_43)
/* wrapper acoshf */
float
__acosh_compatf (float x)
{
if (__builtin_expect (isless (x, 1.0f), 0) && _LIB_VERSION != _IEEE_)
/* acosh(x<1) */
return __kernel_standard_f (x, x, 129);
return __ieee754_acoshf (x);
}
compat_symbol (libm, __acosh_compatf, acoshf, GLIBC_2_0);
#endif