powerpc: wordcopy/memmove cleanup for ppc64

This patch cleanup some multiarch code related to memmmove
optimization. Initial IFUNC support added specialized wordcopy
symbols which turned in local IFUNC calls used by memmove default
implementation.

This change by removing then and used the optimized memmove instead
for supported chips.

6 files changed, 32 insertions, 95 deletions

diff --git a/ChangeLog b/ChangeLog
index f5c29413aa..89443945f8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,15 @@
 2015-02-09  Adhemerval Zanellla  <azanella@linux.vnet.ibm.com>
 
 	* sysdeps/powerpc/powerpc64/multiarch/Makefile [sysdep_routines]:
+	Remove wordcopy-power6 obejct.
+	* sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c (__memmove_ppc):
+	Use local call for wordcopy and memcpy symbols.
+	* sysdeps/powerpc/powerpc64/multiarch/wordcopy-power6.c: Remove file.
+	* sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c: Add default
+	implementation for loader.
+	* sysdeps/powerpc/powerpc64/multiarch/wordcopy.c: Remove file.
+
+	* sysdeps/powerpc/powerpc64/multiarch/Makefile [sysdep_routines]:
 	Remove wordcopy-power7 object.
 	* sysdeps/powerpc/powerpc64/multiarch/wordcopy-power7.c: Remove file.
 	* sysdeps/powerpc/powerpc64/multiarch/wordcopy.c
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index 0111ad6ab9..17265bd275 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -11,19 +11,18 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
 		   strncmp-power8 strncmp-power7 strncmp-power4 strncmp-ppc64 \
 		   strchr-power7 strchr-ppc64 \
 		   strchrnul-power7 strchrnul-ppc64 \
-		   wordcopy-power6 wordcopy-ppc64 \
 		   strcpy-power8 strcpy-power7 strcpy-ppc64 stpcpy-power8 \
 		   stpcpy-power7 stpcpy-ppc64 \
 		   strrchr-power7 strrchr-ppc64 strncat-power7 strncat-ppc64 \
 		   strncpy-power7 strncpy-ppc64 \
 		   stpncpy-power8 stpncpy-power7 stpncpy-ppc64 \
 		   strcmp-power8 strcmp-power7 strcmp-ppc64 \
-		   strcat-power8 strcat-power7 strcat-ppc64 memmove-power7 \
-		   memmove-ppc64 bcopy-ppc64 strncpy-power8
+		   strcat-power8 strcat-power7 strcat-ppc64 \
+		   memmove-power7 memmove-ppc64 wordcopy-ppc64 bcopy-ppc64 \
+		   strncpy-power8
 
 CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
 CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
-CFLAGS-wordcopy-power6.c += -mcpu=power6
 endif
 
 ifeq ($(subdir),wcsmbs)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c b/sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c
index 0ade49d9fb..a2d8790030 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c
@@ -16,13 +16,27 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <string.h>
+#include <memcopy.h>
 
+extern __typeof (_wordcopy_fwd_aligned) _wordcopy_fwd_aligned_ppc;
+extern __typeof (_wordcopy_fwd_dest_aligned) _wordcopy_fwd_dest_aligned_ppc;
+extern __typeof (_wordcopy_bwd_aligned) _wordcopy_bwd_aligned_ppc;
+extern __typeof (_wordcopy_bwd_dest_aligned) _wordcopy_bwd_dest_aligned_ppc;
+
+#define _wordcopy_fwd_aligned       _wordcopy_fwd_aligned_ppc
+#define _wordcopy_fwd_dest_aligned  _wordcopy_fwd_dest_aligned_ppc
+#define _wordcopy_bwd_aligned       _wordcopy_bwd_aligned_ppc
+#define _wordcopy_bwd_dest_aligned  _wordcopy_bwd_dest_aligned_ppc
+
+extern __typeof (memmove) __memmove_ppc attribute_hidden;
 #define MEMMOVE __memmove_ppc
+
+extern __typeof (memcpy) __memcpy_ppc attribute_hidden;
+#define memcpy __memcpy_ppc
+
 #if IS_IN (libc) && defined(SHARED)
 # undef libc_hidden_builtin_def
 # define libc_hidden_builtin_def(name)
 #endif
 
-extern __typeof (memmove) __memmove_ppc attribute_hidden;
-
 #include <string/memmove.c>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/wordcopy-power6.c b/sysdeps/powerpc/powerpc64/multiarch/wordcopy-power6.c
deleted file mode 100644
index 4bd6494b58..0000000000
--- a/sysdeps/powerpc/powerpc64/multiarch/wordcopy-power6.c
+++ /dev/null
@@ -1,19 +0,0 @@
-/* wordcopy routines for powerpc64/power6.
-   Copyright (C) 2013-2015 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/wordcopy-power6.c>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c b/sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c
index 5d7b9fdcc2..b8ecda7bb3 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c
@@ -15,4 +15,8 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#if IS_IN (libc)
 #include <sysdeps/powerpc/powerpc32/power4/multiarch/wordcopy-ppc32.c>
+#else
+#include <string/wordcopy.c>
+#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/wordcopy.c b/sysdeps/powerpc/powerpc64/multiarch/wordcopy.c
deleted file mode 100644
index ec397326cb..0000000000
--- a/sysdeps/powerpc/powerpc64/multiarch/wordcopy.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/* Multiple versions of wordcopy functions.
-   Copyright (C) 2013-2015 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 <stddef.h>
-# include <memcopy.h>
-# include <shlib-compat.h>
-# include "init-arch.h"
-
-extern __typeof (_wordcopy_fwd_aligned) _wordcopy_fwd_aligned_ppc
-attribute_hidden;
-extern __typeof (_wordcopy_fwd_aligned) _wordcopy_fwd_aligned_power6
-attribute_hidden;
-
-libc_ifunc (_wordcopy_fwd_aligned,
-	    (hwcap & PPC_FEATURE_ARCH_2_05)
-            ? _wordcopy_fwd_aligned_power6
-            : _wordcopy_fwd_aligned_ppc);
-
-
-extern __typeof (_wordcopy_fwd_dest_aligned) _wordcopy_fwd_dest_aligned_ppc
-attribute_hidden;
-extern __typeof (_wordcopy_fwd_dest_aligned) _wordcopy_fwd_dest_aligned_power6
-attribute_hidden;
-
-libc_ifunc (_wordcopy_fwd_dest_aligned,
-	    (hwcap & PPC_FEATURE_ARCH_2_05)
-            ? _wordcopy_fwd_dest_aligned_power6
-            : _wordcopy_fwd_dest_aligned_ppc);
-
-
-extern __typeof (_wordcopy_bwd_aligned) _wordcopy_bwd_aligned_ppc
-attribute_hidden;
-extern __typeof (_wordcopy_bwd_aligned) _wordcopy_bwd_aligned_power6
-attribute_hidden;
-
-libc_ifunc (_wordcopy_bwd_aligned,
-	    (hwcap & PPC_FEATURE_ARCH_2_05)
-            ? _wordcopy_bwd_aligned_power6
-            : _wordcopy_bwd_aligned_ppc);
-
-
-extern __typeof (_wordcopy_bwd_dest_aligned) _wordcopy_bwd_dest_aligned_ppc
-attribute_hidden;
-extern __typeof (_wordcopy_bwd_dest_aligned) _wordcopy_bwd_dest_aligned_power6
-attribute_hidden;
-
-libc_ifunc (_wordcopy_bwd_dest_aligned,
-	    (hwcap & PPC_FEATURE_ARCH_2_05)
-            ? _wordcopy_bwd_dest_aligned_power6
-            : _wordcopy_bwd_dest_aligned_ppc);
-
-#else
-#include <sysdeps/powerpc/power4/wordcopy.c>
-#endif