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c9dc4d5117
glibc/string
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Stefan Liebler c9dc4d5117 Fix string/tst-xbzero-opt if build with gcc head. 
On s390x, the test string/tst-xbzero-opt is failing if build with gcc head:
FAIL: no clear/prepare: expected 32 got 0
FAIL: no clear/test: expected some got 0
FAIL: ordinary clear/prepare: expected 32 got 0
INFO: ordinary clear/test: found 0 patterns (memset not eliminated)
PASS: explicit clear/prepare: expected 32 got 32
PASS: explicit clear/test: expected 0 got 0

In setup_no_clear / setup_ordinary_clear, GCC is omitting the memcpy loop
in prepare_test_buffer. Thus count_test_patterns does not find any of the
test_pattern.

This patch calls use_test_buffer in order to force the compiler to really copy
the pattern to buf.

ChangeLog:

	* string/tst-xbzero-opt.c (use_test_buffer): New function.
	(prepare_test_buffer): Call use_test_buffer as compiler barrier.
2018-07-26 17:09:44 +02:00
..
bits Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
_strerror.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-addsep.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-append.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-count.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-create.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-ctsep.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-delete.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-extract.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-insert.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-next.c Use libc_hidden_* for argz_next, __argz_next (bug 15105). 2018-02-15 21:00:02 +00:00
argz-replace.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz-stringify.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
argz.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
basename.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
bcopy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
bug-envz1.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
bug-strcoll1.c
bug-strcoll2.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
bug-strncat1.c Fix string/bug-strncat1.c build with GCC 8. 2017-11-14 17:50:36 +00:00
bug-strpbrk1.c Fix bug-strspn1.c, bug-strpbrk1.c build with GCC mainline. 2018-06-20 22:18:22 +00:00
bug-strspn1.c Fix bug-strspn1.c, bug-strpbrk1.c build with GCC mainline. 2018-06-20 22:18:22 +00:00
bug-strtok1.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
byteswap.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
bzero.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Depend
endian.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
envz.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
envz.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
explicit_bzero.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ffs.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ffsll.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
inl-tester.c
Makefile Unify and simplify bits/byteswap.h, bits/byteswap-16.h headers (bug 14508, bug 15512, bug 17082, bug 20530). 2018-02-06 21:55:08 +00:00
memccpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memcmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memcpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memfrob.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memmem.c Improve strstr performance 2018-07-16 17:51:52 +01:00
memmove.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memory.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
mempcpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memrchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memset.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
noinl-tester.c
rawmemchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stpcpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stpncpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
str-two-way.h Improve strstr performance 2018-07-16 17:51:52 +01:00
stratcliff.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcasecmp_l.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcasecmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcasestr.c Improve strstr performance 2018-07-16 17:51:52 +01:00
strcat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strchrnul.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcoll_l.c Fix another -Os strcoll build issue. 2018-02-26 18:38:01 +00:00
strcoll.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcspn.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strdup.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strerror_l.c libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
strerror.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strfry.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
string-inlines.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
string.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strings.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strlen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strncase_l.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strncase.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strncat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strncmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strncpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strndup.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strnlen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strpbrk.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strrchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strsep.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strsignal.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strspn.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strstr.c Improve strstr performance 2018-07-16 17:51:52 +01:00
strtok_r.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strtok.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strverscmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strxfrm_l.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strxfrm.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
swab.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-bcopy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-bzero.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-endian-file-scope.c Unify and simplify bits/byteswap.h, bits/byteswap-16.h headers (bug 14508, bug 15512, bug 17082, bug 20530). 2018-02-06 21:55:08 +00:00
test-endian-sign-conversion.c Unify and simplify bits/byteswap.h, bits/byteswap-16.h headers (bug 14508, bug 15512, bug 17082, bug 20530). 2018-02-06 21:55:08 +00:00
test-endian-types.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-explicit_bzero.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-ffs.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-memccpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-memchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-memcmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-memcpy.c Add a test case for [BZ #23196] 2018-05-23 04:00:11 -07:00
test-memmem.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-memmove.c Fix i386 memmove issue (bug 22644). 2018-03-23 16:19:45 +01:00
test-mempcpy.c Don't write beyond destination in __mempcpy_avx512_no_vzeroupper (bug 23196) 2018-05-23 09:50:57 +02:00
test-memrchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-memset.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-rawmemchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-stpcpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-stpncpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strcasecmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strcasestr.c Improve strstr performance 2018-07-16 17:51:52 +01:00
test-strcat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strchrnul.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strcmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strcpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strcspn.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-string.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strlen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strncasecmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strncat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strncmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strncpy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strnlen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strpbrk.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strrchr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strspn.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-strstr.c Improve strstr performance 2018-07-16 17:51:52 +01:00
testcopy.c Move string/testcopy.c to test-driver.c and xmalloc (bug 19667). 2018-02-06 21:43:20 +00:00
tester.c Ignore -Wrestrict for one strncat test. 2018-06-14 14:20:00 +00:00
tst-bswap.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-cmp.c Fix tst-cmp.c build with GCC mainline. 2018-06-20 22:19:50 +00:00
tst-endian.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
tst-inlcall.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-strcoll-overflow.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-strfry.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
tst-strlen.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
tst-strtok_r.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-strtok.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
tst-strxfrm2.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
tst-strxfrm.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
tst-svc2.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
tst-svc.c Update string tests to use the support test driver. 2017-03-23 11:32:29 -03:00
tst-svc.expect
tst-svc.input
tst-xbzero-opt.c Fix string/tst-xbzero-opt if build with gcc head. 2018-07-26 17:09:44 +02:00
Versions New string function explicit_bzero (from OpenBSD). 2016-12-16 16:21:54 -05:00
wordcopy.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
xpg-strerror.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00