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This patch adds full support for cross-building benchmarks. Some
benchmarks like those that need locales to be generated cannot be
built and are hence skipped for cross builds.
Tested by cross building for aarch64 on x86_64 and then running the
generated benchmark on aarch64.
* benchtests/Makefile (wcsmbs-benchset): Include only for
native builds and runs.
(LOCALES): Likewise.
(bench-build): Build timing-type here instead of the bench
target. Generate locale only for native builds.
* benchtests/README: Add note for cross-building.
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The bench-clean target would leave behind json-lib.o. Fix up to clean
up all extra-objs registered in benchtests.
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For situations where we are cross-building or where we want to avoid
building on the target system, we want a way to only build benchmarks
and then copy them over to the target system to run them. I have also
added a simple enhancement for the 'bench' target where all benchmark
binaries are built and then the benchmarks executed.
Tested on arm.
Makefile.in (bench-build): New target.
Rules (PHONY): Add bench-build target.
benchtests/Makefile (bench): Depend on bench-build.
(bench-build): New target.
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From the bug:
Obsolete locale. The ISO-639 code for Hebrew was changed from 'iw'
to 'he' in 1989, according to Bruno Haible on libc-alpha 2003-09-01.
Reported-by: Chris Leonard <cjlhomeaddress@gmail.com>
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Add memcpy, memmove and memset benchmarks with large data sizes.
* benchtests/Makefile (string-benchset): Add memcpy-large,
memmove-large and memset-large.
* benchtests/bench-memcpy-large.c: New file.
* benchtests/bench-memmove-large.c: Likewise.
* benchtests/bench-memmove-large.c: Likewise.
* benchtests/bench-string.h (TIMEOUT): Don't redefine.
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Add 64-byte alignment tests in memset benchtest for 64-byte vector
registers.
* benchtests/bench-memset.c (do_test): Support 64-byte
alignment.
(test_main): Test 64-byte alignment.
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Add 64-byte alignment tests in memmove benchtest for 64-byte vector
registers.
* benchtests/bench-memmove.c (test_main): Test 64-byte
alignment.
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Add 64-byte alignment tests in memcpy benchtest for 64-byte vector
registers.
* benchtests/bench-memcpy.c (test_main): Test 64-byte alignment.
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benchtests should use $(test-via-rtld-prefix) and $(+link-tests) like
other glibc tests.
[BZ #19783]
* benchtests/Makefile (run-bench): Replace $(rtld-prefix) with
$(test-via-rtld-prefix).
($(binaries-bench)): Replace $(+link) with $(+link-tests).
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The ffs and ffsll functions were listed as math functions when they
are actually defined in strings.h and string.h respectively. Shuffle
around the Makefile variables a bit and make a separate space for ffs
and ffsll.
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The sincos benchmark has only about a dozen inputs that don't measure
the impact of changes to various passes. Since much of the code
properties are inherited from sin and cos, copy those inputs in to get
more comprehensive coverage.
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Prevent function calls that don't return anything from being optimized
out by the compiler by marking its input variables as used.
This prevents the sincos function call from being optimized out in the
benchmark.
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uses 2 arrays with 1024 doubles, one with 99% finite FP numbers (10% zeroes, 10% negative) and 1% inf/NaN, the other with 50% inf, and 50% Nan.
ChangeLog:
2015-09-18 Wilco Dijkstra <wdijkstr@arm.com>
* benchtests/Makefile: Add bench-math-inlines, link with libm.
* benchtests/bench-math-inlines.c: New benchmark.
* benchtests/bench-util.h: New file.
* benchtests/bench-util.c: New file.
* benchtests/bench-skeleton.c: Add include of bench-util.c/h.
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This patch provides optimized version of wmemcmp with the z13 vector
instructions.
ChangeLog:
* sysdeps/s390/multiarch/wmemcmp-c.c: New File.
* sysdeps/s390/multiarch/wmemcmp-vx.S: Likewise.
* sysdeps/s390/multiarch/wmemcmp.c: Likewise.
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Add wmemcmp functions.
* sysdeps/s390/multiarch/ifunc-impl-list-common.c
(__libc_ifunc_impl_list_common): Add ifunc test for wmemcmp.
* benchtests/bench-wmemcmp.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wmemcmp.
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This patch provides optimized version of wmemset with the z13 vector
instructions.
ChangeLog:
* sysdeps/s390/multiarch/wmemset-c.c: New File.
* sysdeps/s390/multiarch/wmemset-vx.S: Likewise.
* sysdeps/s390/multiarch/wmemset.c: Likewise.
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Add wmemset functions.
* sysdeps/s390/multiarch/ifunc-impl-list-common.c
(__libc_ifunc_impl_list_common): Add ifunc test for wmemset.
* wcsmbs/wmemset.c: Use WMEMSET if defined.
* string/test-memset.c: Add wmemset support.
* wcsmbs/test-wmemset.c: New File.
* wcsmbs/Makefile (strop-tests): Add wmemset.
* benchtests/bench-memset.c: Add wmemset support.
* benchtests/bench-wmemset.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wmemset.
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This patch provides optimized versions of memchr, rawmemchr and wmemchr with the
z13 vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/memchr-vx.S: New File.
* sysdeps/s390/multiarch/memchr.c: Likewise.
* sysdeps/s390/multiarch/rawmemchr-c.c: Likewise.
* sysdeps/s390/multiarch/rawmemchr-vx.S: Likewise.
* sysdeps/s390/multiarch/rawmemchr.c: Likewise.
* sysdeps/s390/multiarch/wmemchr-c.c: Likewise.
* sysdeps/s390/multiarch/wmemchr-vx.S: Likewise.
* sysdeps/s390/multiarch/wmemchr.c: Likewise.
* sysdeps/s390/s390-32/multiarch/memchr.c: Likewise.
* sysdeps/s390/s390-64/multiarch/memchr.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memchr, wmemchr
and rawmemchr functions.
* sysdeps/s390/multiarch/ifunc-impl-list-common.c
(__libc_ifunc_impl_list_common): Add ifunc test for memchr, rawmemchr
and wmemchr.
* wcsmbs/wmemchr.c: Use WMEMCHR if defined.
* string/test-memchr.c: Add wmemchr support.
* wcsmbs/test-wmemchr.c: New File.
* wcsmbs/Makefile (strop-tests): Add wmemchr.
* benchtests/bench-memchr.c: Add wmemchr support.
* benchtests/bench-wmemchr.c: New File.
* benchtests/Makefile (wcsmbs-bench): wmemchr.
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This patch provides optimized versions of strcspn and wcscspn with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strcspn-c.c: New File.
* sysdeps/s390/multiarch/strcspn-vx.S: Likewise.
* sysdeps/s390/multiarch/strcspn.c: Likewise.
* sysdeps/s390/multiarch/wcscspn-c.c: Likewise.
* sysdeps/s390/multiarch/wcscspn-vx.S: Likewise.
* sysdeps/s390/multiarch/wcscspn.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcspn and
wcscspn functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strcspn, wcscspn.
* wcsmbs/wcscspn.c: Use WCSCSPN if defined.
* string/test-strcspn.c: Add wcscspn support.
* wcsmbs/test-wcscspn.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcscspn.
* benchtests/bench-strcspn.c: Add wcscspn support.
* benchtests/bench-wcscspn.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcscspn.
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This patch provides optimized versions of strpbrk and wcspbrk with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strpbrk-c.c: New File.
* sysdeps/s390/multiarch/strpbrk-vx.S: Likewise.
* sysdeps/s390/multiarch/strpbrk.c: Likewise.
* sysdeps/s390/multiarch/wcspbrk-c.c: Likewise.
* sysdeps/s390/multiarch/wcspbrk-vx.S: Likewise.
* sysdeps/s390/multiarch/wcspbrk.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strpbrk and
wcspbrk functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strpbrk, wcspbrk.
* wcsmbs/wcspbrk.c: Use WCSPBRK if defined.
* string/test-strpbrk.c: Add wcspbrk support.
* wcsmbs/test-wcspbrk.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcspbrk.
* benchtests/bench-strpbrk.c: Add wcspbrk support.
* benchtests/bench-wcspbrk.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcspbrk.
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This patch provides optimized versions of strspn and wcsspn with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strspn-c.c: New File.
* sysdeps/s390/multiarch/strspn-vx.S: Likewise.
* sysdeps/s390/multiarch/strspn.c: Likewise.
* sysdeps/s390/multiarch/wcsspn-c.c: Likewise.
* sysdeps/s390/multiarch/wcsspn-vx.S: Likewise.
* sysdeps/s390/multiarch/wcsspn.c: Likewise.
* wcsmbs/wcsspn.c: Use WCSSPN if defined.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strspn and
wcsspn functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strspn, wcsspn.
* string/test-strspn.c: Add wcsspn support.
* wcsmbs/test-wcsspn.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcsspn.
* benchtests/bench-strspn.c: Add wcsspn support.
* benchtests/bench-wcsspn.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcsspn.
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This patch provides optimized versions of strrchr and wcsrchr with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strrchr-c.c: New File.
* sysdeps/s390/multiarch/strrchr-vx.S: Likewise.
* sysdeps/s390/multiarch/strrchr.c: Likewise.
* sysdeps/s390/multiarch/wcsrchr-c.c: Likewise.
* sysdeps/s390/multiarch/wcsrchr-vx.S: Likewise.
* sysdeps/s390/multiarch/wcsrchr.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strrchr and
wcsrchr functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strrchr, wcsrchr.
* benchtests/bench-wcsrchr.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcsrchr.
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This patch provides optimized versions of strchrnul and wcschrnul with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strchrnul-c.c: New File.
* sysdeps/s390/multiarch/strchrnul-vx.S: Likewise.
* sysdeps/s390/multiarch/strchrnul.c: Likewise.
* sysdeps/s390/multiarch/wcschrnul-c.c: Likewise.
* sysdeps/s390/multiarch/wcschrnul-vx.S: Likewise.
* sysdeps/s390/multiarch/wcschrnul.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strchrnul and
wcschrnul functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strchrnul, wcschrnul.
* wcsmbs/wcschrnul.c: Use WCSCHRNUL if defined.
* string/test-strchr.c: Add wcschrnul support.
* wcsmbs/test-wcschrnul.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcschrnul.
* benchtests/bench-strchr.c: Add wcschrnul support.
* benchtests/bench-wcschrnul.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcschrnul.
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This patch provides optimized versions of strchr and wcschr with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strchr-c.c: New File.
* sysdeps/s390/multiarch/strchr-vx.S: Likewise.
* sysdeps/s390/multiarch/strchr.c: Likewise.
* sysdeps/s390/multiarch/wcschr-c.c: Likewise.
* sysdeps/s390/multiarch/wcschr-vx.S: Likewise.
* sysdeps/s390/multiarch/wcschr.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strchr and
wcschr functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strchr, wcschr.
* string/strchr.c (STRCHR): Define and use macro.
* benchtests/bench-wcschr.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcschr.
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This patch provides optimized versions of strncmp and wcsncmp with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strncmp-c.c: New File.
* sysdeps/s390/multiarch/strncmp-vx.S: Likewise.
* sysdeps/s390/multiarch/strncmp.c: Likewise.
* sysdeps/s390/multiarch/wcsncmp-c.c: Likewise.
* sysdeps/s390/multiarch/wcsncmp-vx.S: Likewise.
* sysdeps/s390/multiarch/wcsncmp.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncmp and
wcsncmp functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strncmp, wcsncmp.
* wcsmbs/wcsncmp.c (WCSNCMP): Define and use macro.
* benchtests/bench-strncmp.c: Add wcsncmp support.
* benchtests/bench-wcsncmp.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcsncmp.
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This patch provides optimized versions of strcmp and wcscmp with the z13
vector instructions.
The architecture specific string.h had a typo, which leads to ommiting the
inline version in this file if __USE_STRING_INLINES is defined.
Tested this inline version by tweaking test-strcmp.c.
ChangeLog:
* sysdeps/s390/multiarch/strcmp-vx.S: New File.
* sysdeps/s390/multiarch/strcmp.c: Likewise.
* sysdeps/s390/multiarch/wcscmp-c.c: Likewise.
* sysdeps/s390/multiarch/wcscmp-vx.S: Likewise.
* sysdeps/s390/multiarch/wcscmp.c: Likewise.
* sysdeps/s390/s390-32/multiarch/strcmp.c: Likewise.
* sysdeps/s390/s390-64/multiarch/strcmp.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcmp and
wcscmp functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strcmp, wcscmp.
* string/strcmp.c (STRCMP): Define and use macro.
* benchtests/bench-wcscmp.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcscmp.
* sysdeps/s390/bits/string.h: Fix typo: _HAVE_STRING_ARCH_strcmp
instead of _HAVE_STRING_ARCH_memchr.
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This patch provides optimized versions of strncat and wcsncat with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strncat-c.c: New File.
* sysdeps/s390/multiarch/strncat-vx.S: Likewise.
* sysdeps/s390/multiarch/strncat.c: Likewise.
* sysdeps/s390/multiarch/wcsncat-c.c: Likewise.
* sysdeps/s390/multiarch/wcsncat-vx.S: Likewise.
* sysdeps/s390/multiarch/wcsncat.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncat and
wcsncat functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strncat, wcsncat.
* wcsmbs/wcsncat.c (WCSNCAT): Define and use macro.
* string/test-strncat.c: Add wcsncat support.
* wcsmbs/test-wcsncat.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcsncat.
* benchtests/bench-strncat.c: Add wcsncat support.
* benchtests/bench-wcsncat.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcsncat.
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This patch provides optimized versions of strcat and wcscat with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strcat-c.c: New File.
* sysdeps/s390/multiarch/strcat-vx.S: Likewise.
* sysdeps/s390/multiarch/strcat.c: Likewise.
* sysdeps/s390/multiarch/wcscat-c.c: Likewise.
* sysdeps/s390/multiarch/wcscat-vx.S: Likewise.
* sysdeps/s390/multiarch/wcscat.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcat and
wcscat functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strcat, wcscat.
* string/strcat.c (STRCAT): Define and use macro.
* wcsmbs/wcscat.c: Use WCSCAT if defined.
* string/test-strcat.c: Add wcscat support.
* wcsmbs/test-wcscat.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcscat.
* benchtests/bench-strcat.c: Add wcscat support.
* benchtests/bench-wcscat.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcscat.
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This patch provides optimized versions of stpncpy and wcpncpy with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/stpncpy-c.c: New File.
* sysdeps/s390/multiarch/stpncpy-vx.S: Likewise.
* sysdeps/s390/multiarch/stpncpy.c: Likewise.
* sysdeps/s390/multiarch/wcpncpy-c.c: Likewise.
* sysdeps/s390/multiarch/wcpncpy-vx.S: Likewise.
* sysdeps/s390/multiarch/wcpncpy.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add stpncpy and
wcpncpy functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for stpncpy, wcpncpy.
* wcsmbs/wcpncpy.c: Use WCPNCPY if defined.
* string/test-stpncpy.c: Add wcpncpy support.
* wcsmbs/test-wcpncpy.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcpncpy.
* benchtests/bench-stpncpy.c: Add wcpncpy support.
* benchtests/bench-wcpncpy.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcpncpy.
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This patch provides optimized versions of strncpy and wcsncpy with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strncpy-vx.S: New File.
* sysdeps/s390/multiarch/strncpy.c: Likewise.
* sysdeps/s390/multiarch/wcsncpy-c.c: Likewise.
* sysdeps/s390/multiarch/wcsncpy-vx.S: Likewise.
* sysdeps/s390/multiarch/wcsncpy.c: Likewise.
* sysdeps/s390/s390-32/multiarch/strncpy.c: Likewise.
* sysdeps/s390/s390-64/multiarch/strncpy.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncpy and
wcsncpy functions.
* wcsmbs/wcsncpy.c: Use WCSNCPY if defined.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strncpy, wcsncpy.
* string/test-strncpy.c: Add wcsncpy support.
* wcsmbs/test-wcsncpy.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcsncpy.
* benchtests/bench-strncpy.c: Add wcsncpy support.
* benchtests/bench-wcsncpy.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcsncpy
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This patch provides optimized versions of stpcpy and wcpcpy with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/stpcpy-c.c: New File.
* sysdeps/s390/multiarch/stpcpy-vx.S: Likewise.
* sysdeps/s390/multiarch/stpcpy.c: Likewise.
* sysdeps/s390/multiarch/wcpcpy-c.c: Likewise.
* sysdeps/s390/multiarch/wcpcpy-vx.S: Likewise.
* sysdeps/s390/multiarch/wcpcpy.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add stpcpy and
wcpcpy functions.
* string/stpcpy.c: Use STPCPY if defined.
* wcsmbs/wcpcpy.c: Use WCPCPY if defined.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for stpcpy, wcpcpy.
* string/test-stpcpy.c: Add wcpcpy support.
* wcsmbs/test-wcpcpy.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcpcpy.
* benchtests/bench-stpcpy.c: Add wcpcpy support.
* benchtests/bench-wcpcpy.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcpcpy.
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This patch provides optimized versions of strcpy and wcscpy with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strcpy-vx.S: New File.
* sysdeps/s390/multiarch/strcpy.c: Likewise.
* sysdeps/s390/multiarch/wcscpy-c.c: Likewise.
* sysdeps/s390/multiarch/wcscpy-vx.S: Likewise.
* sysdeps/s390/multiarch/wcscpy.c: Likewise.
* sysdeps/s390/s390-32/multiarch/strcpy.c: Likewise.
* sysdeps/s390/s390-64/multiarch/strcpy.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcpy and
wcscpy functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strcpy, wcscpy.
* benchtests/bench-wcscpy.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcscpy.
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This patch provides optimized versions of strnlen and wcsnlen with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strnlen-c.c: New File.
* sysdeps/s390/multiarch/strnlen-vx.S: Likewise.
* sysdeps/s390/multiarch/strnlen.c: Likewise.
* sysdeps/s390/multiarch/wcsnlen-c.c: Likewise.
* sysdeps/s390/multiarch/wcsnlen-vx.S: Likewise.
* sysdeps/s390/multiarch/wcsnlen.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strnlen and
wcsnlen functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strnlen, wcsnlen.
* wcsmbs/wcsnlen.c: Use WCSNLEN if defined.
* string/test-strnlen.c: Add wcsnlen support.
* wcsmbs/test-wcsnlen.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcsnlen.
* benchtests/bench-strnlen.c: Add wcsnlen support.
* benchtests/bench-wcsnlen.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcsnlen.
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This patch provides optimized versions of strlen and wcslen with the z13 vector
instructions.
The helper macro IFUNC_VX_IMPL is introduced and is used to register all
__<func>_c() and __<func>_vx() functions within __libc_ifunc_impl_list()
to the ifunc test framework.
ChangeLog:
* sysdeps/s390/multiarch/Makefile: New File.
* sysdeps/s390/multiarch/strlen-c.c: Likewise.
* sysdeps/s390/multiarch/strlen-vx.S: Likewise.
* sysdeps/s390/multiarch/strlen.c: Likewise.
* sysdeps/s390/multiarch/wcslen-c.c: Likewise.
* sysdeps/s390/multiarch/wcslen-vx.S: Likewise.
* sysdeps/s390/multiarch/wcslen.c: Likewise.
* string/strlen.c (STRLEN): Define and use macro.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(IFUNC_VX_IMPL): New macro function.
(__libc_ifunc_impl_list): Add ifunc test for strlen, wcslen.
* benchtests/Makefile (wcsmbs-bench): New variable.
(string-bench-all): Added wcsmbs-bench.
* benchtests/bench-wcslen.c: New File.
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This patch fixes implicit declaration of function strdup, strtok,
strcoll, strchr and removes unused variable res.
ChangeLog:
* benchtests/bench-strcoll.c:
Include string.h.
(main): Remove unused variable res.
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This script is a sample implementation that uses import_bench to
construct two benchmark objects and compare them. If detailed timing
information is available (when one does `make DETAILED=1 bench`), it
writes out graphs for all functions it benchmarks and prints
significant differences in timings of the two benchmark runs. If
detailed timing information is not available, it points out
significant differences in aggregate times.
Call this script as follows:
compare_bench.py schema_file.json bench1.out bench2.out
Alternatively, if one wants to set a different threshold for warnings
(default is a 10% difference):
compare_bench.py schema_file.json bench1.out bench2.out 25
The threshold in the example above is 25%. schema_file.json is the
JSON schema (which is $srcdir/benchtests/scripts/benchout.schema.json
for the benchmark output file) and bench1.out and bench2.out are the
two benchmark output files to compare.
The key functionality here is the compress_timings function which
groups together points that are close together into a single point
that is the mean of all its representative points. Any point in such
a group is at most 1.5x the smallest point in that group. The
detailed derivation is a comment in the function.
* benchtests/scripts/compare_bench.py: New file.
* benchtests/scripts/import_bench.py (mean): New function.
(split_list): Likewise.
(do_for_all_timings): Likewise.
(compress_timings): Likewise.
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This is the beginning of a module to import and process benchmark
outputs. The module currently supports importing of a bench.out and
validating it against a schema file. In future this could grow a set
of routines that benchmark consumers may find useful to build their
own analysis tools. I have altered validate_bench to use this module
too.
* benchtests/scripts/import_bench.py: New file.
* benchtests/scripts/validate_benchout.py: Import import_bench
instead of jsonschema.
(validate_bench): Remove function.
(main): Use import_bench.
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Tests position and non-positional arguments with two
test string.
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This patch optimizes strcpy for ppc64/power7 for unaligned source or
destination address. The source or destination address is aligned
to doubleword and data is shifted based on the alignment and
added with the previous loaded data to be written as a doubleword.
For each load, cmpb instruction is used for faster null check.
The word aligned optimization is also removed, since the new unaligned
code path shows better results handling word-aligned strings.
More combination of unaligned inputs is also added in benchtest
to measure the improvement.The new optimization shows 2 to 80% of
performance improvement for longer string though it does not show
big difference on string size less than 16 due to additional checks.
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TEST_IFUNC is only tested in two headers, bench-string.h and
test-string.h, after it gets defined by those headers, and it never
gets undefined.
Thus no defines of TEST_IFUNC are needed, and the *-ifunc.c tests that
just define TEST_IFUNC and include other tests are also redundant, as
is the code to remove $(tests-ifunc) and $(xtests-ifunc) conditionally
from tests and xtests. This patch removes the useless defines and
tests of TEST_IFUNC and the associated useless tests and makefile
code. It thereby fixes a series of warnings
"../string/test-string.h:21:0: warning: "TEST_IFUNC" redefined" where
test-string.h defines TEST_IFUNC to empty, other files define it to 1
and this produces warnings.
Tested for x86_64.
* debug/test-stpcpy_chk-ifunc.c: Remove file.
* debug/test-strcpy_chk-ifunc.c: Likewise.
* wcsmbs/test-wcschr-ifunc.c: Likewise.
* wcsmbs/test-wcscmp-ifunc.c: Likewise.
* wcsmbs/test-wcscpy-ifunc.c: Likewise.
* wcsmbs/test-wcslen-ifunc.c: Likewise.
* wcsmbs/test-wcsrchr-ifunc.c: Likewise.
* wcsmbs/test-wmemcmp-ifunc.c: Likewise.
* Rules [$(multi-arch) = no] (tests): Do not filter out
$(tests-ifunc).
[$(multi-arch) = no] (xtests): Do not filter out $(xtests-ifunc).
* debug/Makefile (tests-ifunc): Remove variable.
(tests): Do not add $(tests-ifunc).
* wcsmbs/Makefile (tests-ifunc): Remove variable.
(tests): Do not add $(tests-ifunc).
* benchtests/bench-string.h (TEST_IFUNC): Remove macro.
[TEST_IFUNC]: Remove conditionals.
* string/test-string.h (TEST_IFUNC): Remove macro.
[TEST_IFUNC]: Remove conditionals.
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Add a microbenchmark for measuring malloc and free performance with
varying numbers of threads. The benchmark allocates and frees buffers
of random sizes in a random order and measures the overall execution
time and RSS. Variants of the benchmark are run with 1, 8, 16 and
32 threads.
The random block sizes used follow an inverse square distribution
which is intended to mimic the behaviour of real applications which
tend to allocate many more small blocks than large ones.
ChangeLog:
2014-11-05 Will Newton <will.newton@linaro.org>
* benchtests/Makefile: (bench-malloc): Add malloc thread
scalability benchmark.
* benchtests/bench-malloc-threads.c: New file.
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This patch adds an optimized memset implementation for POWER8. For
sizes from 0 to 255 bytes, a word/doubleword algorithm similar to
POWER7 optimized one is used.
For size higher than 255 two strategies are used:
1. If the constant is different than 0, the memory is written with
altivec vector instruction;
2. If constant is 0, dbcz instructions are used. The loop is unrolled
to clear 512 byte at time.
Using vector instructions increases throughput considerable, with a
double performance for sizes larger than 1024. The dcbz loops unrolls
also shows performance improvement, by doubling throughput for sizes
larger than 8192 bytes.
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Without HP_TIMING_ACCUM, dl_hp_timing_overhead is write-only.
If we remove it, there's no point in HP_TIMING_DIFF_INIT either.
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The variable is not necessary, especially since it does not exist.
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This patch adds a JSON schema for the benchmark output file and also
adds a script that validates the generated output against the schema.
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consistent environment.
One wart in the original support for test wrappers for cross testing,
as noted in
<https://sourceware.org/ml/libc-alpha/2012-10/msg00722.html>, is the
requirement for test wrappers to pass a poorly-defined set of
environment variables from the build system to the system running the
glibc under test. Although some variables are passed explicitly via
$(test-wrapper-env), including LD_* variables that simply can't be
passed implicitly because of the side effects they'd have on the build
system's dynamic linker, others are passed implicitly, including
variables such as GCONV_PATH and LOCPATH that could potentially affect
the build system's libc (so effectively relying on any such effects
not breaking the wrappers). In addition, the code in
cross-test-ssh.sh for preserving environment variables is fragile (it
depends on how bash formats a list of exported variables, and could
well break for multi-line variable definitions where the contents
contain things looking like other variable definitions).
This patch moves to explicitly passing environment variables via
$(test-wrapper-env). Makefile variables that previously used
$(test-wrapper) are split up into -before-env and -after-env parts
that can be passed separately to the various .sh files used in
testing, so those files can then insert environment settings between
the two parts.
The common default environment settings in make-test-out are made into
a separate makefile variable that can also be passed to scripts,
rather than many scripts duplicating those settings (for testing an
installed glibc, it is desirable to have the GCONV_PATH setting on
just one place, so just that one place needs to support it pointing to
an installed sysroot instead of the build tree). The default settings
are included in the variables such as $(test-program-prefix), so that
if tests do not need any non-default settings they can continue to use
single variables rather than the split-up variables.
Although this patch cleans up LC_ALL=C settings (that being part of
the common defaults), various LANG=C and LANGUAGE=C settings remain.
Those are generally unnecessary and I propose a subsequent cleanup to
remove them. LC_ALL takes precedence over LANG, and while LANGUAGE
takes precedence over LC_ALL, it only does so for settings other than
LC_ALL=C. So LC_ALL=C on its own is sufficient to ensure the C
locale, and anything that gets LC_ALL=C does not need the other
settings.
While preparing this patch I noticed some tests with .sh files that
appeared to do nothing beyond what the generic makefile support for
tests can do (localedata/tst-wctype.sh - the makefiles support -ENV
variables and .input files - and localedata/tst-mbswcs.sh - just runs
five tests that could be run individually from the makefile). So I
propose another subsequent cleanup to move those to using the generic
support instead of special .sh files.
Tested x86_64 (native) and powerpc32 (cross).
* Makeconfig (run-program-env): New variable.
(run-program-prefix-before-env): Likewise.
(run-program-prefix-after-env): Likewise.
(run-program-prefix): Define in terms of new variables.
(built-program-cmd-before-env): New variable.
(built-program-cmd-after-env): Likewise.
(built-program-cmd): Define in terms of new variables.
(test-program-prefix-before-env): New variable.
(test-program-prefix-after-env): Likewise.
(test-program-prefix): Define in terms of new variables.
(test-program-cmd-before-env): New variable.
(test-program-cmd-after-env): Likewise.
(test-program-cmd): Define in terms of new variables.
* Rules (make-test-out): Use $(run-program-env).
* scripts/cross-test-ssh.sh (env_blacklist): Remove variable.
(help): Do not mention environment variables. Mention
--timeoutfactor option.
(timeoutfactor): New variable.
(blacklist_exports): Remove function.
(exports): Remove variable.
(command): Do not include ${exports}.
* manual/install.texi (Configuring and compiling): Do not mention
test wrappers preserving environment variables. Mention that last
assignment to a variable must take precedence.
* INSTALL: Regenerated.
* benchtests/Makefile (run-bench): Use $(run-program-env).
* catgets/Makefile ($(objpfx)test1.cat): Use
$(built-program-cmd-before-env), $(run-program-env) and
$(built-program-cmd-after-env).
($(objpfx)test2.cat): Do not specify environment variables
explicitly.
($(objpfx)de/libc.cat): Use $(built-program-cmd-before-env),
$(run-program-env) and $(built-program-cmd-after-env).
($(objpfx)test-gencat.out): Use $(test-program-cmd-before-env),
$(run-program-env) and $(test-program-cmd-after-env).
($(objpfx)sample.SJIS.cat): Do not specify environment variables
explicitly.
* catgets/test-gencat.sh: Use test_program_cmd_before_env,
run_program_env and test_program_cmd_after_env arguments.
* elf/Makefile ($(objpfx)tst-pathopt.out): Use $(run-program-env).
* elf/tst-pathopt.sh: Use run_program_env argument.
* iconvdata/Makefile ($(objpfx)iconv-test.out): Use
$(test-wrapper-env) and $(run-program-env).
* iconvdata/run-iconv-test.sh: Use test_wrapper_env and
run_program_env arguments.
* iconvdata/tst-table.sh: Do not set GCONV_PATH explicitly.
* intl/Makefile ($(objpfx)tst-gettext.out): Use
$(test-program-prefix-before-env), $(run-program-env) and
$(test-program-prefix-after-env).
($(objpfx)tst-gettext2.out): Likewise.
* intl/tst-gettext.sh: Use test_program_prefix_before_env,
run_program_env and test_program_prefix_after_env arguments.
* intl/tst-gettext2.sh: Likewise.
* intl/tst-gettext4.sh: Do not set environment variables
explicitly.
* intl/tst-gettext6.sh: Likewise.
* intl/tst-translit.sh: Likewise.
* malloc/Makefile ($(objpfx)tst-mtrace.out): Use
$(test-program-prefix-before-env), $(run-program-env) and
$(test-program-prefix-after-env).
* malloc/tst-mtrace.sh: Use test_program_prefix_before_env,
run_program_env and test_program_prefix_after_env arguments.
* math/Makefile (run-regen-ulps): Use $(run-program-env).
* nptl/Makefile ($(objpfx)tst-tls6.out): Use $(run-program-env).
* nptl/tst-tls6.sh: Use run_program_env argument. Set LANG=C
explicitly with each use of ${test_wrapper_env}.
* posix/Makefile ($(objpfx)wordexp-tst.out): Use
$(test-program-prefix-before-env), $(run-program-env) and
$(test-program-prefix-after-env).
* posix/tst-getconf.sh: Do not set environment variables
explicitly.
* posix/wordexp-tst.sh: Use test_program_prefix_before_env,
run_program_env and test_program_prefix_after_env arguments.
* stdio-common/tst-printf.sh: Do not set environment variables
explicitly.
* stdlib/Makefile ($(objpfx)tst-fmtmsg.out): Use
$(test-program-prefix-before-env), $(run-program-env) and
$(test-program-prefix-after-env).
* stdlib/tst-fmtmsg.sh: Use test_program_prefix_before_env,
run_program_env and test_program_prefix_after_env arguments.
Split $test calls into $test_pre and $test.
* timezone/Makefile (build-testdata): Use
$(built-program-cmd-before-env), $(run-program-env) and
$(built-program-cmd-after-env).
localedata/ChangeLog:
* Makefile ($(addprefix $(objpfx),$(CTYPE_FILES))): Use
$(built-program-cmd-before-env), $(run-program-env) and
$(built-program-cmd-after-env).
($(objpfx)sort-test.out): Use $(test-program-prefix-before-env),
$(run-program-env) and $(test-program-prefix-after-env).
($(objpfx)tst-fmon.out): Use $(run-program-prefix-before-env),
$(run-program-env) and $(run-program-prefix-after-env).
($(objpfx)tst-locale.out): Use $(built-program-cmd-before-env),
$(run-program-env) and $(built-program-cmd-after-env).
($(objpfx)tst-trans.out): Use $(run-program-prefix-before-env),
$(run-program-env), $(run-program-prefix-after-env),
$(test-program-prefix-before-env) and
$(test-program-prefix-after-env).
($(objpfx)tst-ctype.out): Use $(test-program-cmd-before-env),
$(run-program-env) and $(test-program-cmd-after-env).
($(objpfx)tst-wctype.out): Likewise.
($(objpfx)tst-langinfo.out): Likewise.
($(objpfx)tst-langinfo-static.out): Likewise.
* gen-locale.sh: Use localedef_before_env, run_program_env and
localedef_after_env arguments.
* sort-test.sh: Use test_program_prefix_before_env,
run_program_env and test_program_prefix_after_env arguments.
* tst-ctype.sh: Use tst_ctype_before_env, run_program_env and
tst_ctype_after_env arguments.
* tst-fmon.sh: Use run_program_prefix_before_env, run_program_env
and run_program_prefix_after_env arguments.
* tst-langinfo.sh: Use tst_langinfo_before_env, run_program_env
and tst_langinfo_after_env arguments.
* tst-locale.sh: Use localedef_before_env, run_program_env and
localedef_after_env arguments.
* tst-mbswcs.sh: Do not set environment variables explicitly.
* tst-numeric.sh: Likewise.
* tst-rpmatch.sh: Likewise.
* tst-trans.sh: Use run_program_prefix_before_env,
run_program_env, run_program_prefix_after_env,
test_program_prefix_before_env and test_program_prefix_after_env
arguments.
* tst-wctype.sh: Use tst_wctype_before_env, run_program_env and
tst_wctype_after_env arguments.
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