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ba67bc8e0a
These implementations improve the time to run strchr{nul}
microbenchmark in glibc as below:
strchr-lasx reduces the runtime about 50%-83%
strchr-lsx reduces the runtime about 30%-67%
strchr-aligned reduces the runtime about 10%-20%
strchrnul-lasx reduces the runtime about 50%-83%
strchrnul-lsx reduces the runtime about 36%-65%
strchrnul-aligned reduces the runtime about 6%-10%
57 lines
2 KiB
C
57 lines
2 KiB
C
/* Enumerate available IFUNC implementations of a function LoongArch64 version.
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Copyright (C) 2023 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 <assert.h>
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#include <string.h>
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#include <wchar.h>
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#include <ldsodefs.h>
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#include <ifunc-impl-list.h>
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#include <stdio.h>
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size_t
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__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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size_t max)
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{
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size_t i = max;
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IFUNC_IMPL (i, name, strlen,
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#if !defined __loongarch_soft_float
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IFUNC_IMPL_ADD (array, i, strlen, SUPPORT_LASX, __strlen_lasx)
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IFUNC_IMPL_ADD (array, i, strlen, SUPPORT_LSX, __strlen_lsx)
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#endif
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IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_aligned)
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)
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IFUNC_IMPL (i, name, strchr,
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#if !defined __loongarch_soft_float
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IFUNC_IMPL_ADD (array, i, strchr, SUPPORT_LASX, __strchr_lasx)
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IFUNC_IMPL_ADD (array, i, strchr, SUPPORT_LSX, __strchr_lsx)
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#endif
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IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_aligned)
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)
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IFUNC_IMPL (i, name, strchrnul,
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#if !defined __loongarch_soft_float
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IFUNC_IMPL_ADD (array, i, strchrnul, SUPPORT_LASX, __strchrnul_lasx)
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IFUNC_IMPL_ADD (array, i, strchrnul, SUPPORT_LSX, __strchrnul_lsx)
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#endif
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IFUNC_IMPL_ADD (array, i, strchrnul, 1, __strchrnul_aligned)
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)
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return i;
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}
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