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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aarch64	aarch64: Improve strcmp unaligned performance	2017-12-13 18:50:27 +05:30
alpha	Update Alpha libm-test-ulps	2017-12-06 18:55:09 -02:00
arm	Add sysdeps/ieee754/soft-fp.	2017-12-12 23:35:21 +00:00
generic	Support _Float32 in libm_alias_float.	2017-12-06 22:14:09 +00:00
gnu	The -Wstringop-truncation option new in GCC 8 detects common misuses	2017-11-15 17:39:59 -07:00
hppa	Handle __gmon_start__ as undefined weak on hppa.	2017-12-02 14:43:28 -05:00
i386	Add _Float32 function aliases.	2017-12-07 00:48:31 +00:00
ia64	Update IA64 libm-test-ulps	2017-12-12 16:57:41 -02:00
ieee754	Add sysdeps/ieee754/soft-fp.	2017-12-12 23:35:21 +00:00
init_array	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
m68k	Add sysdeps/ieee754/soft-fp.	2017-12-12 23:35:21 +00:00
mach	Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN	2017-10-03 01:33:38 +02:00
microblaze	Add sysdeps/ieee754/soft-fp.	2017-12-12 23:35:21 +00:00
mips	Add sysdeps/ieee754/soft-fp.	2017-12-12 23:35:21 +00:00
nios2	Add sysdeps/ieee754/soft-fp.	2017-12-12 23:35:21 +00:00
nptl	nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION}	2017-11-07 09:48:41 -02:00
posix	posix: Fix generic p{read,write}v buffer allocation (BZ#22457)	2017-11-24 12:16:15 -02:00
powerpc	Remove --with-fp / --without-fp.	2017-12-12 13:56:47 +00:00
pthread	aio: Remove internal_function function attribute	2017-08-31 15:59:06 +02:00
s390	S390: Add CFI rule in _dl_runtime_resolve[_vx] for unwinding.	2017-12-11 08:47:51 +01:00
sh	Add sysdeps/ieee754/soft-fp.	2017-12-12 23:35:21 +00:00
sparc	sparc: M7 optimized memset/bzero	2017-12-14 08:48:19 -02:00
tile	Add sysdeps/ieee754/soft-fp.	2017-12-12 23:35:21 +00:00
unix	ia64: Add ipc_priv.h header to set __IPC_64 to zero	2017-12-12 12:19:24 -02:00
wordsize-32	Build divdi3 only for architecture that required it	2017-04-06 15:14:34 -03:00
wordsize-64	posix: Consolidate Linux glob implementation	2017-09-08 16:34:02 +02:00
x86	Add _Float64x function aliases.	2017-11-27 14:16:47 +00:00
x86_64	x86-64: Add cosf with FMA	2017-12-12 15:32:58 -08:00