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| author | Vidya Ranganathan <vidya@linux.vnet.ibm.com> | 2014-05-05 19:10:45 -0500 |
|---|---|---|
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2014-05-06 09:54:25 -0500 |
| commit | f360f94a05570045be615649e9a411cefba2e210 (patch) | |
| tree | ac6fb86d01ea80b3bf914c2f74aa231b42bfda28 /sysdeps/powerpc/powerpc64/multiarch/Makefile | |
| parent | 978a41c35738dbe4592edb7dcaa155fec31dab50 (diff) | |
| download | glibc-f360f94a05570045be615649e9a411cefba2e210.tar.gz glibc-f360f94a05570045be615649e9a411cefba2e210.tar.xz glibc-f360f94a05570045be615649e9a411cefba2e210.zip | |
PowerPC: strncpy/stpncpy optimization for PPC64/POWER7
The optimization is achieved by following techniques:
> data alignment [gain from aligned memory access on read/write]
> POWER7 gains performance with loop unrolling/unwinding
[gain by reduction of branch penalty].
> zero padding done by calling optimized memset
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/Makefile')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile index 8d367aab08..35020a7b4c 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile @@ -16,7 +16,8 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \ strcpy-power7 strcpy-ppc64 stpcpy-power7 stpcpy-ppc64 \ strrchr-power7 strrchr-ppc64 strncat-power7 strncat-ppc64 \ strspn-power7 strspn-ppc64 strcspn-power7 strcspn-ppc64 \ - strpbrk-power7 strpbrk-ppc64 + strpbrk-power7 strpbrk-ppc64 strncpy-power7 strncpy-ppc64 \ + stpncpy-power7 stpncpy-ppc64 CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops |