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/* Common definition for ifunc selections optimized with AVX, AVX2/FMA
and FMA4.
Copyright (C) 2017-2020 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 <init-arch.h>
extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden;
extern __typeof (REDIRECT_NAME) OPTIMIZE (avx) attribute_hidden;
extern __typeof (REDIRECT_NAME) OPTIMIZE (fma) attribute_hidden;
extern __typeof (REDIRECT_NAME) OPTIMIZE (fma4) attribute_hidden;
static inline void *
IFUNC_SELECTOR (void)
{
const struct cpu_features* cpu_features = __get_cpu_features ();
if (CPU_FEATURES_ARCH_P (cpu_features, FMA_Usable)
&& CPU_FEATURES_ARCH_P (cpu_features, AVX2_Usable))
return OPTIMIZE (fma);
if (CPU_FEATURES_ARCH_P (cpu_features, FMA4_Usable))
return OPTIMIZE (fma4);
if (CPU_FEATURES_ARCH_P (cpu_features, AVX_Usable))
return OPTIMIZE (avx);
return OPTIMIZE (sse2);
}
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