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35da2541c3
This implementation is based on the one already used at sysdeps/x86_64/fpu/e_expf.S. This implementation improves the performance by ~14% on average in synthetic benchmarks at the cost of decreasing accuracy to 1 ULP.
32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
/* Multiple versions of ieee754_expf.
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Copyright (C) 2016 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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<http://www.gnu.org/licenses/>. */
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#include <math.h>
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#include <math_ldbl_opt.h>
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#include "init-arch.h"
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extern __typeof (__ieee754_expf) __ieee754_expf_ppc64 attribute_hidden;
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extern __typeof (__ieee754_expf) __ieee754_expf_power8 attribute_hidden;
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libc_ifunc (__ieee754_expf,
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(hwcap2 & PPC_FEATURE2_ARCH_2_07)
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? __ieee754_expf_power8
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: __ieee754_expf_ppc64);
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strong_alias (__ieee754_expf, __expf_finite)
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