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92fdb11ae7
The default, and power7 implementation just adds word aligned access when inputs have the same aligment. The unaligned case is still done by byte operations. This is already covered by the generic implementation, which also add the unaligned input optimization. Checked on powerpc64-linux-gnu built without multi-arch for powerpc64, power7, power8, and power9 (build for le). Reviewed-by: Rajalakshmi Srinivasaraghavan <rajis@linux.ibm.com>
444 lines
16 KiB
C
444 lines
16 KiB
C
/* Enumerate available IFUNC implementations of a function. PowerPC64 version.
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Copyright (C) 2013-2023 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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<https://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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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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unsigned long int hwcap = GLRO(dl_hwcap);
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unsigned long int hwcap2 = GLRO(dl_hwcap2);
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#ifdef SHARED
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int cacheline_size = GLRO(dl_cache_line_size);
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#endif
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/* hwcap contains only the latest supported ISA, the code checks which is
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and fills the previous supported ones. */
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if (hwcap & PPC_FEATURE_ARCH_2_06)
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hwcap |= PPC_FEATURE_ARCH_2_05 | PPC_FEATURE_POWER5_PLUS |
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PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
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else if (hwcap & PPC_FEATURE_ARCH_2_05)
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hwcap |= PPC_FEATURE_POWER5_PLUS | PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
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else if (hwcap & PPC_FEATURE_POWER5_PLUS)
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hwcap |= PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
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else if (hwcap & PPC_FEATURE_POWER5)
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hwcap |= PPC_FEATURE_POWER4;
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#ifdef SHARED
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/* Support sysdeps/powerpc/powerpc64/multiarch/memcpy.c. */
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IFUNC_IMPL (i, name, memcpy,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, memcpy,
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hwcap2 & PPC_FEATURE2_ARCH_3_1
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__memcpy_power10)
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#endif
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__memcpy_power8_cached)
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__memcpy_power7)
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
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__memcpy_a2)
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05,
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__memcpy_power6)
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE,
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__memcpy_cell)
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_POWER4,
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__memcpy_power4)
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IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/memmove.c. */
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IFUNC_IMPL (i, name, memmove,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, memmove,
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hwcap2 & PPC_FEATURE2_ARCH_3_1
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&& hwcap2 & PPC_FEATURE2_HAS_ISEL
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__memmove_power10)
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#endif
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IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_ARCH_2_06
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__memmove_power7)
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IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/memset.c. */
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IFUNC_IMPL (i, name, memset,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, memset,
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hwcap2 & PPC_FEATURE2_ARCH_3_1
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&& hwcap2 & PPC_FEATURE2_HAS_ISEL
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&& hwcap & PPC_FEATURE_HAS_VSX
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&& cacheline_size == 128,
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__memset_power10)
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#endif
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IFUNC_IMPL_ADD (array, i, memset, hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC
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&& cacheline_size == 128,
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__memset_power8)
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IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_06
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&& cacheline_size == 128,
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__memset_power7)
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IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05
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&& cacheline_size == 128,
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__memset_power6)
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IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_POWER4
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&& cacheline_size == 128,
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__memset_power4)
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IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strcpy.c. */
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IFUNC_IMPL (i, name, strcpy,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_3_00
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strcpy_power9)
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#endif
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IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strcpy_power8)
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IFUNC_IMPL_ADD (array, i, strcpy, hwcap & PPC_FEATURE_ARCH_2_06
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strcpy_power7)
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IFUNC_IMPL_ADD (array, i, strcpy, 1,
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__strcpy_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/stpcpy.c. */
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IFUNC_IMPL (i, name, stpcpy,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, stpcpy, hwcap2 & PPC_FEATURE2_ARCH_3_00
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__stpcpy_power9)
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#endif
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IFUNC_IMPL_ADD (array, i, stpcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__stpcpy_power8)
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IFUNC_IMPL_ADD (array, i, stpcpy, hwcap & PPC_FEATURE_ARCH_2_06
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__stpcpy_power7)
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IFUNC_IMPL_ADD (array, i, stpcpy, 1,
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__stpcpy_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strlen.c. */
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IFUNC_IMPL (i, name, strlen,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_3_1
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strlen_power10)
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IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_3_00
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strlen_power9)
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#endif
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IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strlen_power8)
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IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_ARCH_2_06,
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__strlen_power7)
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IFUNC_IMPL_ADD (array, i, strlen, 1,
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__strlen_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strncmp.c. */
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IFUNC_IMPL (i, name, strncmp,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_3_00
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strncmp_power9)
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#endif
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IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
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__strncmp_power8)
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IFUNC_IMPL_ADD (array, i, strncmp, 1,
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__strncmp_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c. */
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IFUNC_IMPL (i, name, strchr,
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IFUNC_IMPL_ADD (array, i, strchr,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strchr_power8)
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IFUNC_IMPL_ADD (array, i, strchr,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strchr_power7)
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IFUNC_IMPL_ADD (array, i, strchr, 1,
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__strchr_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c. */
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IFUNC_IMPL (i, name, strchrnul,
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IFUNC_IMPL_ADD (array, i, strchrnul,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strchrnul_power8)
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IFUNC_IMPL_ADD (array, i, strchrnul,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strchrnul_power7)
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IFUNC_IMPL_ADD (array, i, strchrnul, 1,
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__strchrnul_ppc))
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#endif
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/* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */
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IFUNC_IMPL (i, name, memcmp,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, memcmp,
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hwcap2 & PPC_FEATURE2_ARCH_3_1
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__memcmp_power10)
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#endif
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IFUNC_IMPL_ADD (array, i, memcmp, hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__memcmp_power8)
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IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_ARCH_2_06,
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__memcmp_power7)
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IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
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__memcmp_power4)
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IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c. */
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IFUNC_IMPL (i, name, mempcpy,
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IFUNC_IMPL_ADD (array, i, mempcpy,
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hwcap & PPC_FEATURE_ARCH_2_06
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__mempcpy_power7)
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IFUNC_IMPL_ADD (array, i, mempcpy, 1,
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__mempcpy_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c. */
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IFUNC_IMPL (i, name, memchr,
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IFUNC_IMPL_ADD (array, i, memchr,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__memchr_power8)
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IFUNC_IMPL_ADD (array, i, memchr,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__memchr_power7)
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IFUNC_IMPL_ADD (array, i, memchr, 1,
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__memchr_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c. */
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IFUNC_IMPL (i, name, memrchr,
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IFUNC_IMPL_ADD (array, i, memrchr,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__memrchr_power8)
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IFUNC_IMPL_ADD (array, i, memrchr,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__memrchr_power7)
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IFUNC_IMPL_ADD (array, i, memrchr, 1,
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__memrchr_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c. */
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IFUNC_IMPL (i, name, rawmemchr,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, rawmemchr,
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(hwcap2 & PPC_FEATURE2_ARCH_3_1)
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&& (hwcap & PPC_FEATURE_HAS_VSX),
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__rawmemchr_power10)
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IFUNC_IMPL_ADD (array, i, rawmemchr,
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hwcap2 & PPC_FEATURE2_ARCH_3_00
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__rawmemchr_power9)
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#endif
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IFUNC_IMPL_ADD (array, i, rawmemchr,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__rawmemchr_power7)
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IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
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__rawmemchr_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c. */
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IFUNC_IMPL (i, name, strnlen,
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IFUNC_IMPL_ADD (array, i, strnlen,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strnlen_power8)
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IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_ARCH_2_06,
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__strnlen_power7)
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IFUNC_IMPL_ADD (array, i, strnlen, 1,
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__strnlen_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c. */
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IFUNC_IMPL (i, name, strcasecmp,
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IFUNC_IMPL_ADD (array, i, strcasecmp,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strcasecmp_power8)
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IFUNC_IMPL_ADD (array, i, strcasecmp,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strcasecmp_power7)
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IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c. */
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IFUNC_IMPL (i, name, strcasecmp_l,
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IFUNC_IMPL_ADD (array, i, strcasecmp_l,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strcasecmp_l_power7)
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IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
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__strcasecmp_l_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strncase.c. */
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IFUNC_IMPL (i, name, strncasecmp,
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IFUNC_IMPL_ADD (array, i, strncasecmp,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strncasecmp_power8)
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IFUNC_IMPL_ADD (array, i, strncasecmp,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strncasecmp_power7)
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IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strncase_l.c. */
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IFUNC_IMPL (i, name, strncasecmp_l,
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IFUNC_IMPL_ADD (array, i, strncasecmp_l,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strncasecmp_l_power7)
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IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
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__strncasecmp_l_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strrchr.c. */
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IFUNC_IMPL (i, name, strrchr,
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IFUNC_IMPL_ADD (array, i, strrchr,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strrchr_power8)
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IFUNC_IMPL_ADD (array, i, strrchr,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strrchr_power7)
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IFUNC_IMPL_ADD (array, i, strrchr, 1,
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__strrchr_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strncat.c. */
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IFUNC_IMPL (i, name, strncat,
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IFUNC_IMPL_ADD (array, i, strncat,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strncat_power8)
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IFUNC_IMPL_ADD (array, i, strncat,
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hwcap & PPC_FEATURE_ARCH_2_06
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strncat_power7)
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IFUNC_IMPL_ADD (array, i, strncat, 1,
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__strncat_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strncpy.c. */
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IFUNC_IMPL (i, name, strncpy,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, strncpy,
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(hwcap2 & PPC_FEATURE2_ARCH_3_00)
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&& (hwcap & PPC_FEATURE_HAS_VSX),
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__strncpy_power9)
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#endif
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IFUNC_IMPL_ADD (array, i, strncpy,
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hwcap2 & PPC_FEATURE2_ARCH_2_07,
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__strncpy_power8)
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IFUNC_IMPL_ADD (array, i, strncpy,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strncpy_power7)
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IFUNC_IMPL_ADD (array, i, strncpy, 1,
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__strncpy_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/stpncpy.c. */
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IFUNC_IMPL (i, name, stpncpy,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, stpncpy,
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(hwcap2 & PPC_FEATURE2_ARCH_3_00)
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&& (hwcap & PPC_FEATURE_HAS_VSX),
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__stpncpy_power9)
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#endif
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IFUNC_IMPL_ADD (array, i, stpncpy,
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hwcap2 & PPC_FEATURE2_ARCH_2_07,
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__stpncpy_power8)
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IFUNC_IMPL_ADD (array, i, stpncpy,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__stpncpy_power7)
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IFUNC_IMPL_ADD (array, i, stpncpy, 1,
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__stpncpy_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strcmp.c. */
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IFUNC_IMPL (i, name, strcmp,
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#ifdef __LITTLE_ENDIAN__
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IFUNC_IMPL_ADD (array, i, strcmp,
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hwcap2 & PPC_FEATURE2_ARCH_3_00
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strcmp_power9)
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#endif
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IFUNC_IMPL_ADD (array, i, strcmp,
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hwcap2 & PPC_FEATURE2_ARCH_2_07,
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__strcmp_power8)
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IFUNC_IMPL_ADD (array, i, strcmp,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strcmp_power7)
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IFUNC_IMPL_ADD (array, i, strcmp, 1,
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__strcmp_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strcat.c. */
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IFUNC_IMPL (i, name, strcat,
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IFUNC_IMPL_ADD (array, i, strcat,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strcat_power8)
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IFUNC_IMPL_ADD (array, i, strcat,
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hwcap & PPC_FEATURE_ARCH_2_06
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strcat_power7)
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IFUNC_IMPL_ADD (array, i, strcat, 1,
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__strcat_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strspn.c. */
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IFUNC_IMPL (i, name, strspn,
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IFUNC_IMPL_ADD (array, i, strspn,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strspn_power8)
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IFUNC_IMPL_ADD (array, i, strspn, 1,
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__strspn_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strcspn.c. */
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IFUNC_IMPL (i, name, strcspn,
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IFUNC_IMPL_ADD (array, i, strcspn,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_VSX,
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__strcspn_power8)
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IFUNC_IMPL_ADD (array, i, strcspn, 1,
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__strcspn_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strstr.c. */
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IFUNC_IMPL (i, name, strstr,
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IFUNC_IMPL_ADD (array, i, strstr,
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hwcap & PPC_FEATURE_ARCH_2_06,
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__strstr_power7)
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IFUNC_IMPL_ADD (array, i, strstr, 1,
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__strstr_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strcasestr.c. */
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IFUNC_IMPL (i, name, strcasestr,
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IFUNC_IMPL_ADD (array, i, strcasestr,
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hwcap2 & PPC_FEATURE2_ARCH_2_07
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&& hwcap & PPC_FEATURE_HAS_ALTIVEC,
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__strcasestr_power8)
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IFUNC_IMPL_ADD (array, i, strcasestr, 1,
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__strcasestr_ppc))
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return 0;
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}
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