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074b0f27d9
glibc/sysdeps/s390
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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: Extend structs La_s390_regs / La_s390_retval with vector-registers. 2016-03-31 17:37:16 +02:00
fpu S390: Regenerate ULPs 2016-01-19 10:02:44 +01:00
multiarch Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
nptl Add __private_ss to s390 struct tcbhead. 2016-01-14 16:48:55 +01:00
s390-32 S390: Use mvcle for copies > 1MB on 32bit with default memcpy variant. 2016-05-24 10:39:13 +02:00
s390-64 S390: Use 64bit instruction to check for copies of > 1MB with mvcle. 2016-05-24 10:39:13 +02:00
abort-instr.h S390: Use __asm__ instead of asm. 2015-11-20 08:56:40 +01:00
asm-syntax.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
configure S390: configure check for vector instruction support in assembler. 2015-08-26 10:26:19 +02:00
configure.ac S390: configure check for vector instruction support in assembler. 2015-08-26 10:26:19 +02:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-tls.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ffs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fix-fp-int-convert-overflow.h S/390: Do not raise inexact exception in lrint/lround. [BZ #19486] 2016-01-18 12:48:06 +01:00
gccframe.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gmp-mparam.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Implies * math/divtc3.c: New file. 2006-02-01 03:02:06 +00:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc-tls.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
linkmap.h Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
longjmp.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
preconfigure Move base_machine and machine settings from configure.ac to sysdeps preconfigure fragments. 2014-06-25 17:52:56 +00:00
sotruss-lib.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
string_private.h Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
Versions S/390: Revert the jmp_buf/ucontext_t ABI change. 2014-07-31 20:04:54 +02:00