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1663be053d
Here is implementation of vectorized expf containing SSE, AVX, AVX2 and AVX512 versions according to Vector ABI <https://groups.google.com/forum/#!topic/x86-64-abi/LmppCfN1rZ4>. * sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New symbols added. * sysdeps/x86/fpu/bits/math-vector.h: Added SIMD declaration and asm redirections for expf. * sysdeps/x86_64/fpu/Makefile (libmvec-support): Added new files. * sysdeps/x86_64/fpu/Versions: New versions added. * sysdeps/x86_64/fpu/libm-test-ulps: Regenerated. * sysdeps/x86_64/fpu/multiarch/Makefile (libmvec-sysdep_routines): Added build of SSE, AVX2 and AVX512 IFUNC versions. * sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core_sse4.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core_avx2.S: New file. * sysdeps/x86_64/fpu/svml_s_expf16_core.S: New file. * sysdeps/x86_64/fpu/svml_s_expf4_core.S: New file. * sysdeps/x86_64/fpu/svml_s_expf8_core.S: New file. * sysdeps/x86_64/fpu/svml_s_expf8_core_avx.S: New file. * sysdeps/x86_64/fpu/svml_s_expf_data.S: New file. * sysdeps/x86_64/fpu/svml_s_expf_data.h: New file. * sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c: Vector expf tests. * sysdeps/x86_64/fpu/test-float-vlen16.c: Likewise. * sysdeps/x86_64/fpu/test-float-vlen4-wrappers.c: Likewise. * sysdeps/x86_64/fpu/test-float-vlen4.c: Likewise. * sysdeps/x86_64/fpu/test-float-vlen8-avx2-wrappers.c: Likewise. * sysdeps/x86_64/fpu/test-float-vlen8-avx2.c: Likewise. * sysdeps/x86_64/fpu/test-float-vlen8-wrappers.c: Likewise. * sysdeps/x86_64/fpu/test-float-vlen8.c: Likewise. * NEWS: Mention addition of x86_64 vector expf.
64 lines
1.9 KiB
ArmAsm
64 lines
1.9 KiB
ArmAsm
/* Data for function expf.
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Copyright (C) 2014-2015 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 "svml_s_expf_data.h"
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.section .rodata, "a"
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.align 64
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/* Data table for vector implementations of function expf.
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The table may contain polynomial, reduction, lookup coefficients and
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other coefficients obtained through different methods of research and
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experimental work. */
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.globl __svml_sexp_data
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__svml_sexp_data:
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/* Range reduction coefficients:
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* log(2) inverted */
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float_vector __sInvLn2 0x3fb8aa3b
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/* right shifter constant */
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float_vector __sShifter 0x4b400000
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/* log(2) high part */
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float_vector __sLn2hi 0x3f317200
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/* log(2) low part */
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float_vector __sLn2lo 0x35bfbe8e
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/* bias */
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float_vector __iBias 0x0000007f
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/* Polynomial coefficients:
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* Here we approximate 2^x on [-0.5, 0.5] */
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float_vector __sPC0 0x3f800000
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float_vector __sPC1 0x3f7ffffe
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float_vector __sPC2 0x3effff34
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float_vector __sPC3 0x3e2aacac
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float_vector __sPC4 0x3d2b8392
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float_vector __sPC5 0x3c07d9fe
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/* absolute value mask */
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float_vector __iAbsMask 0x7fffffff
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/* working domain range */
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float_vector __iDomainRange 0x42aeac4f
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.type __svml_sexp_data,@object
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.size __svml_sexp_data,.-__svml_sexp_data
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