1/* Multiple versions of exp2f.
2 Copyright (C) 2017-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <sysdeps/x86/isa-level.h>
20#if MINIMUM_X86_ISA_LEVEL < AVX2_X86_ISA_LEVEL
21# include <libm-alias-float.h>
22# include <libm-alias-finite.h>
23
24extern float __redirect_exp2f (float);
25
26# define SYMBOL_NAME exp2f
27# include "ifunc-fma.h"
28
29libc_ifunc_redirected (__redirect_exp2f, __exp2f, IFUNC_SELECTOR ());
30
31# ifdef SHARED
32versioned_symbol (libm, __ieee754_exp2f, exp2f, GLIBC_2_27);
33libm_alias_float_other (__exp2, exp2)
34# else
35libm_alias_float (__exp2, exp2)
36# endif
37
38strong_alias (__exp2f, __ieee754_exp2f)
39libm_alias_finite (__exp2f, __exp2f)
40
41# define __exp2f __exp2f_sse2
42#endif
43#include <sysdeps/ieee754/flt-32/e_exp2f.c>
44

source code of glibc/sysdeps/x86_64/fpu/multiarch/e_exp2f.c