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c6352111c7
On Skylake, it improves tanh bench performance by: Before After Improvement max 110.89 95.826 14% min 20.966 20.157 4% mean 30.9601 29.8431 4% Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/* Multiple versions of tanh.
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Copyright (C) 2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sysdeps/x86/isa-level.h>
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#if MINIMUM_X86_ISA_LEVEL < AVX2_X86_ISA_LEVEL
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extern double __redirect_tanh (double);
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# define SYMBOL_NAME tanh
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# include "ifunc-fma.h"
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libc_ifunc_redirected (__redirect_tanh, __tanh, IFUNC_SELECTOR ());
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# define __tanh __tanh_sse2
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#endif
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#include <sysdeps/ieee754/dbl-64/s_tanh.c>
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