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powerpc: Use generic wcsrchr optimization
This patch removes the power6 wcsrchr optimization and uses generic implementation instead. Currently, both power6 and power7 IFUNC variant resulting binary are essentially the same and the generic implementation with unrolling loop set to 8 also results in similar performance. Checked on powerpc64-linux-gnu. * sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcsrchr.c): New rule. * sysdeps/powerpc/power6/wcsrchr.c: Remove file. * sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power6.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power7.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcsrchr-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c: Likewise. * sysdeps/powerpc/powerpc64/power6/wcsrchr.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/Makefile [$(subdir) == wcsmbs] (sysdeps_routines): Remove wcsrchr-power6 and wcsrchr-power7. (CFLAGS-wcsrchr-power7.c, CFLAGS-wcsrchr-power6.c): Remove rule. * sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c: Remove wcsrchr optimizations. * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
This commit is contained in:
Adhemerval Zanella
parent
662c2cc4e9
commit
f82ed45d7f
24
ChangeLog
24
ChangeLog
@ -1,5 +1,29 @@
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2019-04-04 Adhemerval Zanella <adhemerval.zanella@linaro.org>
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2019-04-04 Adhemerval Zanella <adhemerval.zanella@linaro.org>
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* sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcsrchr.c):
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New rule.
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* sysdeps/powerpc/power6/wcsrchr.c: Remove file.
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* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c:
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Likewise.
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* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c:
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Likewise.
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* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c:
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Likewise.
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* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c: Likewise.
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* sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power6.c: Likewise.
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* sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power7.c: Likewise.
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* sysdeps/powerpc/powerpc64/multiarch/wcsrchr-ppc64.c: Likewise.
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* sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c: Likewise.
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* sysdeps/powerpc/powerpc64/power6/wcsrchr.c: Likewise.
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* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
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[$(subdir) == wcsmbs] (sysdeps_routines): Remove wcsrchr-power6 and
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wcsrchr-power7.
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(CFLAGS-wcsrchr-power7.c, CFLAGS-wcsrchr-power6.c): Remove rule.
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* sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise.
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* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c:
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Remove wcsrchr optimizations.
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* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
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* wcsmbs/wcsrchr.c (WCSRCHR): Use loop_unroll.h to parametrize
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* wcsmbs/wcsrchr.c (WCSRCHR): Use loop_unroll.h to parametrize
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the loop unroll.
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the loop unroll.
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@ -50,4 +50,5 @@ endif
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ifeq ($(subdir),wcsmbs)
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ifeq ($(subdir),wcsmbs)
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CFLAGS-wcscpy.c += -DUNROLL_NTIMES=8
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CFLAGS-wcscpy.c += -DUNROLL_NTIMES=8
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CFLAGS-wcschr.c += -DUNROLL_NTIMES=8
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CFLAGS-wcschr.c += -DUNROLL_NTIMES=8
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CFLAGS-wcsrchr.c += -DUNROLL_NTIMES=8
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endif
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endif
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@ -1,89 +0,0 @@
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/* wcsrchr.c - Wide Character Reverse Search for POWER6+.
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Copyright (C) 2012-2019 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 <wchar.h>
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#ifndef WCSRCHR
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# define WCSRCHR wcsrchr
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#endif
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/* Find the last occurrence of WC in WCS. */
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wchar_t *
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WCSRCHR (const wchar_t *wcs, const wchar_t wc)
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{
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const wchar_t *wcs2 = wcs + 1;
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const wchar_t *retval = NULL;
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if (*wcs == wc)
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retval = wcs;
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if (*wcs == L'\0') return (wchar_t *) retval;
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do
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{
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wcs+=2;
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if (*wcs2 == wc)
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retval = wcs2;
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if (*wcs2 == L'\0')
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return (wchar_t *) retval;
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wcs2+=2;
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if (*wcs == wc)
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retval = wcs;
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if (*wcs == L'\0')
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return (wchar_t *) retval;
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wcs+=2;
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if (*wcs2 == wc)
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retval = wcs2;
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if (*wcs2 == L'\0')
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return (wchar_t *) retval;
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wcs2+=2;
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if (*wcs == wc)
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retval = wcs;
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if (*wcs == L'\0')
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return (wchar_t *) retval;
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wcs+=2;
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if (*wcs2 == wc)
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retval = wcs2;
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if (*wcs2 == L'\0')
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return (wchar_t *) retval;
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wcs2+=2;
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if (*wcs == wc)
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retval = wcs;
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if (*wcs == L'\0')
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return (wchar_t *) retval;
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wcs+=2;
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if (*wcs2 == wc)
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retval = wcs2;
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if (*wcs2 == L'\0')
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return (wchar_t *) retval;
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wcs2+=2;
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if (*wcs == wc)
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retval = wcs;
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}
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while (*wcs != L'\0');
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return (wchar_t *) retval;
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}
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@ -15,10 +15,3 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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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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endif
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endif
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ifeq ($(subdir),wcsmbs)
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sysdep_routines += wcsrchr-power7 wcsrchr-power6 wcsrchr-ppc32
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CFLAGS-wcsrchr-power7.c += -mcpu=power7
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CFLAGS-wcsrchr-power6.c += -mcpu=power6
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endif
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@ -187,16 +187,5 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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IFUNC_IMPL_ADD (array, i, strchr, 1,
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IFUNC_IMPL_ADD (array, i, strchr, 1,
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__strchr_ppc))
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__strchr_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c. */
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IFUNC_IMPL (i, name, wcsrchr,
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IFUNC_IMPL_ADD (array, i, wcsrchr,
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hwcap & PPC_FEATURE_HAS_VSX,
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__wcsrchr_power7)
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IFUNC_IMPL_ADD (array, i, wcsrchr,
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hwcap & PPC_FEATURE_ARCH_2_05,
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__wcsrchr_power6)
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IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
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__wcsrchr_ppc))
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return i;
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return i;
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}
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}
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@ -1,20 +0,0 @@
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/* Copyright (C) 2013-2019 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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#define WCSRCHR __wcsrchr_power6
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#include <sysdeps/powerpc/power6/wcsrchr.c>
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@ -1,20 +0,0 @@
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/* Copyright (C) 2013-2019 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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#define WCSRCHR __wcsrchr_power7
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#include <sysdeps/powerpc/power6/wcsrchr.c>
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@ -1,26 +0,0 @@
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/* Copyright (C) 2013-2019 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 <wchar.h>
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#if IS_IN (libc)
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# define WCSRCHR __wcsrchr_ppc
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#endif
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extern __typeof (wcsrchr) __wcsrchr_ppc;
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#include <wcsmbs/wcsrchr.c>
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@ -1,36 +0,0 @@
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/* Multiple versions of wcsrchr
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Copyright (C) 2013-2019 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 IS_IN (libc)
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# include <wchar.h>
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# include <shlib-compat.h>
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# include "init-arch.h"
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extern __typeof (wcsrchr) __wcsrchr_ppc attribute_hidden;
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extern __typeof (wcsrchr) __wcsrchr_power6 attribute_hidden;
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extern __typeof (wcsrchr) __wcsrchr_power7 attribute_hidden;
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libc_ifunc (wcsrchr,
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(hwcap & PPC_FEATURE_HAS_VSX)
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? __wcsrchr_power7 :
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(hwcap & PPC_FEATURE_ARCH_2_05)
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? __wcsrchr_power6
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: __wcsrchr_ppc);
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#else
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#include <wcsmbs/wcsrchr.c>
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#endif
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@ -37,10 +37,3 @@ endif
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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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endif
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endif
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ifeq ($(subdir),wcsmbs)
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sysdep_routines += wcsrchr-power7 wcsrchr-power6 wcsrchr-ppc64
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CFLAGS-wcsrchr-power7.c += -mcpu=power7
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CFLAGS-wcsrchr-power6.c += -mcpu=power6
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endif
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@ -260,17 +260,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
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IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
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__strncasecmp_l_ppc))
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__strncasecmp_l_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c. */
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IFUNC_IMPL (i, name, wcsrchr,
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IFUNC_IMPL_ADD (array, i, wcsrchr,
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hwcap & PPC_FEATURE_HAS_VSX,
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__wcsrchr_power7)
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IFUNC_IMPL_ADD (array, i, wcsrchr,
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hwcap & PPC_FEATURE_ARCH_2_05,
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__wcsrchr_power6)
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IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
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__wcsrchr_ppc))
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/* Support sysdeps/powerpc/powerpc64/multiarch/strrchr.c. */
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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 (i, name, strrchr,
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IFUNC_IMPL_ADD (array, i, strrchr,
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IFUNC_IMPL_ADD (array, i, strrchr,
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@ -1,19 +0,0 @@
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/* wcsrchr.c - Wide Character Search for powerpc64/power6.
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Copyright (C) 2013-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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|
|
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The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
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,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
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
|
|
||||||
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 <sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c>
|
|
||||||
@ -1,19 +0,0 @@
|
|||||||
/* wcsrchr.c - Wide Character Search for powerpc64/power7.
|
|
||||||
Copyright (C) 2013-2019 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
||||||
not, see <http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c>
|
|
||||||
@ -1,18 +0,0 @@
|
|||||||
/* Copyright (C) 2013-2019 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#include <sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c>
|
|
||||||
@ -1,36 +0,0 @@
|
|||||||
/* Multiple versions of wcsrchr.
|
|
||||||
Copyright (C) 2013-2019 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, see
|
|
||||||
<http://www.gnu.org/licenses/>. */
|
|
||||||
|
|
||||||
#if IS_IN (libc)
|
|
||||||
# include <wchar.h>
|
|
||||||
# include <shlib-compat.h>
|
|
||||||
# include "init-arch.h"
|
|
||||||
|
|
||||||
extern __typeof (wcsrchr) __wcsrchr_ppc attribute_hidden;
|
|
||||||
extern __typeof (wcsrchr) __wcsrchr_power6 attribute_hidden;
|
|
||||||
extern __typeof (wcsrchr) __wcsrchr_power7 attribute_hidden;
|
|
||||||
|
|
||||||
libc_ifunc (wcsrchr,
|
|
||||||
(hwcap & PPC_FEATURE_HAS_VSX)
|
|
||||||
? __wcsrchr_power7 :
|
|
||||||
(hwcap & PPC_FEATURE_ARCH_2_05)
|
|
||||||
? __wcsrchr_power6
|
|
||||||
: __wcsrchr_ppc);
|
|
||||||
#else
|
|
||||||
#include <wcsmbs/wcsrchr.c>
|
|
||||||
#endif
|
|
||||||
@ -1 +0,0 @@
|
|||||||
#include <sysdeps/powerpc/power6/wcsrchr.c>
|
|
||||||
Loading…
Reference in New Issue
Block a user