Patrick McGehearty e6a1c5dc77 sparc: M7 optimized memset/bzero ... Support added to identify Sparc M7/T7/S7/M8/T8 processor capability. Performance tests run on Sparc S7 using new code and old niagara4 code. Optimizations for memset also apply to bzero as they share code. For memset/bzero, performance comparison with niagara4 code: For memset nonzero data, 256-1023 bytes - 60-90% gain (in cache); 5% gain (out of cache) 1K+ bytes - 80-260% gain (in cache); 40-80% gain (out of cache) For memset zero data (and bzero), 256-1023 bytes - 80-120% gain (in cache), 0% gain (out of cache) 1024+ bytes - 2-4x gain (in cache), 10-35% gain (out of cache) Tested in sparcv9-*-* and sparc64-*-* targets in both multi and non-multi arch configurations. Patrick McGehearty <patrick.mcgehearty@oracle.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> * sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile (sysdeps_routines): Add memset-niagara7. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdes_rotuines): Likewise. * sysdeps/sparc/sparc32/sparcv9/multiarch/memset-niagara7.S: New file. * sysdeps/sparc/sparc64/multiarch/memset-niagara7.S: Likewise. * sysdeps/sparc/sparc64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add __bzero_niagara7 and __memset_niagara7. * sysdeps/sparc/sparc64/multiarch/ifunc-memset.h (IFUNC_SELECTOR): Add niagara7 option. * NEWS: Mention sparc m7 optimized memcpy, mempcpy, memmove, and memset.		2017-12-14 08:48:19 -02:00
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fpu	sparc: Fix sparv9 multiarch build	2017-12-01 15:47:23 -02:00
multiarch	sparc: M7 optimized memset/bzero	2017-12-14 08:48:19 -02:00
addmul_1.S
atomic-machine.h
backtrace.h
bzero.c
cpu_relax.c	sparc: refactor cpu_relax to C	2017-12-01 11:51:10 -02:00
dotmul.S
hp-timing.h
Makefile	sparc: Assume VIS3 support	2017-11-29 08:18:00 -02:00
memchr.S
memcmp.S
memcpy.S
memmove.S	sparc: assembly version of memmove for ultra1+	2017-12-14 08:47:09 -02:00
memset.S
mul_1.S
pthread_barrier_wait.c
pthread_spin_init.c
pthread_spin_lock.S
pthread_spin_trylock.S
pthread_spin_unlock.S
rawmemchr.S
rem.S
rtld-memcpy.c
rtld-memmove.c	sparc: assembly version of memmove for ultra1+	2017-12-14 08:47:09 -02:00
rtld-memset.c
sdiv.S
sem_post.c
sem_waitcommon.c
stpcpy.S
stpncpy.S
strcat.S
strchr.S
strcmp.S
strcpy.S
strcspn.S
strlen.S
strncmp.S
strncpy.S
strpbrk.S
strrchr.c
strspn.S
submul_1.S
udiv.S
umul.S
urem.S