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074b0f27d9
glibc/sysdeps/s390/s390-64
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Stefan Liebler 074b0f27d9 S390: Use 64bit instruction to check for copies of > 1MB with mvcle. 
The __memcpy_default variant on s390 64bit calculates the number of
256byte blocks in a 64bit register and checks, if they exceed 1MB
to jump to mvcle. Otherwise a mvc-loop is used. The compare-instruction
only checks a 32bit value.
This patch uses a 64bit compare.

ChangeLog:

	* sysdeps/s390/s390-64/memcpy.S (memcpy):
	Use cghi instead of chi to compare 64bit value.
2016-05-24 10:39:13 +02:00
..
bits S390: Define SIZE_MAX as unsigned long (BZ #16712). 2014-03-24 16:59:01 +01:00
multiarch Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__longjmp.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
add_n.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
backtrace.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bcopy.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bsd-_setjmp.S Move sysdeps/s390/s390-64/elf files 2012-03-28 09:31:29 +02:00
bsd-setjmp.S Move sysdeps/s390/s390-64/elf files 2012-03-28 09:31:29 +02:00
bzero.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
crti.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
crtn.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-machine.h S390: Save and restore fprs/vrs while resolving symbols. 2016-03-31 17:37:16 +02:00
dl-trampoline.h S390: Extend structs La_s390_regs / La_s390_retval with vector-registers. 2016-03-31 17:37:16 +02:00
dl-trampoline.S S390: Save and restore fprs/vrs while resolving symbols. 2016-03-31 17:37:16 +02:00
Implies
iso-8859-1_cp037_z900.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Makefile S390: Use fPIC to avoid R_390_GOT12 relocation in gcrt1.o. 2016-05-11 15:51:25 +02:00
memchr.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
memcmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
memcpy.S S390: Use 64bit instruction to check for copies of > 1MB with mvcle. 2016-05-24 10:39:13 +02:00
memset.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
s390x-mcount.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stackguard-macros.h S390: Use __asm__ instead of asm. 2015-11-20 08:56:40 +01:00
start.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strcmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strcpy.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strncpy.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tls-macros.h S390: Use __asm__ instead of asm. 2015-11-20 08:56:40 +01:00
tst-audit.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
utf8-utf16-z9.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
utf8-utf32-z9.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
utf16-utf32-z9.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00