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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-12-23 13:36:34 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2015-01-13 11:28:36 -0500
commit94c9680945369d63ef9ed266a29f28ebaaaeb5ce (patch)
treeb6c8f97275fb5372fc47ec058ad7f0ce0b771f5b /sysdeps
parent96d6fd6c4060d739abb1822e7ad633af749532b2 (diff)
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powerpc: Optimized strcat for POWER8/PPC64
With new optimized strcpy for POWER8, this patch adds an optimized strcat which uses it along with default implementation at strings/.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/Makefile4
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c3
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/strcat-power8.c30
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/strcat.c7
4 files changed, 40 insertions, 4 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index f170551..74b2daa 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -18,8 +18,8 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
strrchr-power7 strrchr-ppc64 strncat-power7 strncat-ppc64 \
strncpy-power7 strncpy-ppc64 \
stpncpy-power7 stpncpy-ppc64 strcmp-power7 strcmp-ppc64 \
- strcat-power7 strcat-ppc64 memmove-power7 memmove-ppc64 \
- bcopy-ppc64
+ strcat-power8 strcat-power7 strcat-ppc64 memmove-power7 \
+ memmove-ppc64 bcopy-ppc64
CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 88c8234..dbb21fd 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -303,6 +303,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strcat.c. */
IFUNC_IMPL (i, name, strcat,
IFUNC_IMPL_ADD (array, i, strcat,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ __strcat_power8)
+ IFUNC_IMPL_ADD (array, i, strcat,
hwcap & PPC_FEATURE_HAS_VSX,
__strcat_power7)
IFUNC_IMPL_ADD (array, i, strcat, 1,
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcat-power8.c b/sysdeps/powerpc/powerpc64/multiarch/strcat-power8.c
new file mode 100644
index 0000000..6c7544c
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcat-power8.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 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/ >. */
+
+#include <string.h>
+
+#define STRCAT __strcat_power8
+
+#undef libc_hidden_def
+#define libc_hidden_def(name)
+
+extern typeof (strcpy) __strcpy_power8;
+extern typeof (strlen) __strlen_power7;
+
+#define strcpy __strcpy_power8
+#define strlen __strlen_power7
+#include <sysdeps/powerpc/strcat.c>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcat.c b/sysdeps/powerpc/powerpc64/multiarch/strcat.c
index af188d3..4708a9a 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcat.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcat.c
@@ -23,9 +23,12 @@
extern __typeof (strcat) __strcat_ppc attribute_hidden;
extern __typeof (strcat) __strcat_power7 attribute_hidden;
+extern __typeof (strcat) __strcat_power8 attribute_hidden;
libc_ifunc (strcat,
- (hwcap & PPC_FEATURE_HAS_VSX)
- ? __strcat_power7
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ ? __strcat_power8 :
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __strcat_power7
: __strcat_ppc);
#endif