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a8c5a2a952
glibc/sysdeps
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Wilco Dijkstra a8c5a2a952 This is an optimized memset for AArch64. Memset is split into 4 main cases: 
small sets of up to 16 bytes, medium of 16..96 bytes which are fully unrolled.
Large memsets of more than 96 bytes align the destination and use an unrolled
loop processing 64 bytes per iteration.  Memsets of zero of more than 256 use
the dc zva instruction, and there are faster versions for the common ZVA sizes
64 or 128.  STP of Q registers is used to reduce codesize without loss of
performance.

The speedup on test-memset is 1% on Cortex-A57 and 8% on Cortex-A53.

	* sysdeps/aarch64/memset.S (__memset):
	Rewrite of optimized memset.
2016-05-12 16:44:53 +01:00
..
aarch64 This is an optimized memset for AArch64. Memset is split into 4 main cases: 2016-05-12 16:44:53 +01:00
alpha Update Alpha libm-test-ulps 2016-01-25 10:43:41 -08:00
arm Fix building glibc master with NDEBUG and --with-cpu. 2016-03-15 23:23:24 -04:00
generic Fix crash on getauxval call without HAVE_AUX_VECTOR 2016-04-10 23:58:43 +02:00
gnu Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
hppa hppa: fix dladdr [BZ #19415] 2016-01-08 02:19:26 -05:00
i386 Remove x86 ifunc-defines.sym and rtld-global-offsets.sym 2016-05-11 05:51:39 -07:00
ia64 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ieee754 Increase internal precision of ldbl-128ibm decimal printf [BZ #19853] 2016-03-31 12:14:33 -05:00
init_array Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
m68k m68k: use large PIC model for gcrt1.o 2016-04-30 18:51:43 +02:00
mach Fix gprof timing 2016-04-19 23:27:27 +02:00
microblaze Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
mips Fix MIPS64 memcpy regression. 2016-01-28 01:52:05 +00:00
nacl Fix build with HAVE_AUX_VECTOR 2016-04-11 10:27:25 +02:00
nios2 Maintainence patch for nios2: update ULPS file and localplt.data changes. 2016-01-21 22:58:03 -08:00
nptl Increase fork signal safety for single-threaded processes [BZ #19703] 2016-05-12 15:26:55 +02:00
posix getaddrinfo: Convert from extend_alloca to struct scratch_buffer 2016-05-12 14:07:56 +02:00
powerpc powerpc: Fix operand prefixes 2016-05-04 09:14:52 -03:00
pthread Revert "aio: fix newp->running data race" 2016-05-04 15:52:30 +02:00
s390 S390: Use fPIC to avoid R_390_GOT12 relocation in gcrt1.o. 2016-05-11 15:51:25 +02:00
sh Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sparc Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
tile Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
unix S390: Add support for vdso getcpu symbol. 2016-05-09 11:05:45 +02:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
x86 Remove x86 ifunc-defines.sym and rtld-global-offsets.sym 2016-05-11 05:51:39 -07:00
x86_64 Remove x86 ifunc-defines.sym and rtld-global-offsets.sym 2016-05-11 05:51:39 -07:00