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PowerPC: optimized memmove for POWER7/PPC32
This patch adds a optimized memmove for power7 by using the optimized power7 memcpy for forward copying.
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2014-07-07 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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2014-07-07 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Add memmove
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multiarch objects.
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* sysdeps/powerpc/powerpc32/power4/multiarch/memmove-power7.c: New
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file: multiarch power7 memmove.
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* sysdeps/powerpc/powerpc32/power4/multiarch/memmove-ppc.c: New file:
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multiarch default memmove.
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* sysdeps/powerpc/powerpc32/power4/multiarch/memmove.c: New file:
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multiarch memove for powerpc32/power4.
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* string/bcopy.c: Use full path to include memmove.c.
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* string/bcopy.c: Use full path to include memmove.c.
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* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add memmove and bcopy
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* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add memmove and bcopy
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multiarch objects.
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multiarch objects.
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@ -11,7 +11,7 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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strchr-power7 strchr-ppc32 wcschr-power7 wcschr-power6 \
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strchr-power7 strchr-ppc32 wcschr-power7 wcschr-power6 \
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wcschr-ppc32 wcsrchr-power7 wcsrchr-power6 wcsrchr-ppc32 \
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wcschr-ppc32 wcsrchr-power7 wcsrchr-power6 wcsrchr-ppc32 \
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wcscpy-power7 wcscpy-power6 wcscpy-ppc32 wordcopy-power7 \
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wcscpy-power7 wcscpy-power6 wcscpy-ppc32 wordcopy-power7 \
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wordcopy-power6 wordcopy-ppc32
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wordcopy-power6 wordcopy-ppc32 memmove-power7 memmove-ppc
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CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
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CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
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CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
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CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
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31
sysdeps/powerpc/powerpc32/power4/multiarch/memmove-power7.c
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31
sysdeps/powerpc/powerpc32/power4/multiarch/memmove-power7.c
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/* Power7 multiarch memmove.
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Copyright (C) 2014 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; see the file COPYING.LIB. If
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not, see <http://www.gnu.org/licenses/>. */
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#include <string.h>
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extern __typeof (memcpy) __memcpy_power7;
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#define memcpy __memcpy_power7
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extern __typeof (memmove) __memmove_power7;
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#define MEMMOVE __memmove_power7
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#undef libc_hidden_builtin_def
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#define libc_hidden_builtin_def(name)
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#define MEMCPY_OK_FOR_FWD_MEMMOVE 1
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#include <string/memmove.c>
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34
sysdeps/powerpc/powerpc32/power4/multiarch/memmove-ppc.c
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34
sysdeps/powerpc/powerpc32/power4/multiarch/memmove-ppc.c
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/* Power7 multiarch memmove.
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Copyright (C) 2014 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; see the file COPYING.LIB. If
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not, see <http://www.gnu.org/licenses/>. */
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#include <string.h>
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extern __typeof (memcpy) __memcpy_ppc;
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#define memcpy __memcpy_ppc
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extern __typeof (memmove) __memmove_ppc;
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#define MEMMOVE __memmove_ppc
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#if defined SHARED
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# undef libc_hidden_builtin_def
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# define libc_hidden_builtin_def(name) \
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__hidden_ver1 (__memmove_ppc, __GI_memmove, __memmove_ppc);
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#endif
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#define MEMCPY_OK_FOR_FWD_MEMMOVE 1
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#include <string/memmove.c>
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34
sysdeps/powerpc/powerpc32/power4/multiarch/memmove.c
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34
sysdeps/powerpc/powerpc32/power4/multiarch/memmove.c
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/* Multiple versions of memmove. PowerPC32 version.
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Copyright (C) 2014 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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#if defined SHARED && !defined NOT_IN_libc
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/* Redefine memmove so that the compiler won't complain about the type
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mismatch with the IFUNC selector in strong_alias, below. */
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# include <string.h>
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# include "init-arch.h"
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extern __typeof (memmove) __memmove_ppc attribute_hidden;
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extern __typeof (memmove) __memmove_power7 attribute_hidden;
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libc_ifunc (memmove,
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(hwcap & PPC_FEATURE_HAS_VSX)
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? __memmove_power7
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: __memmove_ppc);
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#else
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# include <string/memmove.c>
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#endif
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