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.

ChangeLog

@@ -1,5 +1,14 @@
 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/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)

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>

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