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H.J. Lu 91cc803d27 x86-64: Add Avoid_Short_Distance_REP_MOVSB 
commit 3ec5d83d2a
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sat Jan 25 14:19:40 2020 -0800

    x86-64: Avoid rep movsb with short distance [BZ #27130]

introduced some regressions on Intel processors without Fast Short REP
MOV (FSRM).  Add Avoid_Short_Distance_REP_MOVSB to avoid rep movsb with
short distance only on Intel processors with FSRM.  bench-memmove-large
on Skylake server shows that cycles of __memmove_evex_unaligned_erms
improves for the following data size:

                                  before    after    Improvement
length=4127, align1=3, align2=0:  479.38    349.25      27%
length=4223, align1=9, align2=5:  405.62    333.25      18%
length=8223, align1=3, align2=0:  786.12    496.38      37%
length=8319, align1=9, align2=5:  727.50    501.38      31%
length=16415, align1=3, align2=0: 1436.88   840.00      41%
length=16511, align1=9, align2=5: 1375.50   836.38      39%
length=32799, align1=3, align2=0: 2890.00   1860.12     36%
length=32895, align1=9, align2=5: 2891.38   1931.88     33%
2021-07-28 13:23:57 -07:00
..
bits
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
fpu
Drop nan-pseudo-number.h usage from tests
2021-01-04 20:49:56 +05:30
include
x86-64: Add Avoid_Short_Distance_REP_MOVSB
2021-07-28 13:23:57 -07:00
nptl
nptl: Remove longjmp, siglongjmp from libpthread
2021-04-21 19:49:50 +02:00
sys/platform
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
__longjmp_cancel.S
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
abi-note.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
atomic-machine.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
cacheinfo.c
x86: Handle _SC_LEVEL1_ICACHE_LINESIZE [BZ #27444]
2021-03-15 05:43:26 -07:00
cacheinfo.h
x86-64: Add Avoid_Short_Distance_REP_MOVSB
2021-07-28 13:23:57 -07:00
cet-control.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
check-cet.awk
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
configure
x86: Set minimum x86-64 level marker [BZ #27318]
2021-03-06 07:49:30 -08:00
configure.ac
x86: Set minimum x86-64 level marker [BZ #27318]
2021-03-06 07:49:30 -08:00
cpu-features-offsets.sym
x86: Cleanup cpu-features-offsets.sym
2018-08-03 06:42:09 -07:00
cpu-features.c
x86-64: Add Avoid_Short_Distance_REP_MOVSB
2021-07-28 13:23:57 -07:00
cpu-tunables.c
x86: Set Prefer_No_VZEROUPPER and add Prefer_AVX2_STRCMP
2021-03-29 07:40:17 -07:00
dl-cacheinfo.h
x86: Set rep_movsb_threshold to 2112 on processors with FSRM
2021-05-03 05:08:22 -07:00
dl-cet.c
x86: Properly set usable CET feature bits [BZ #26625]
2021-01-29 03:58:11 -08:00
dl-diagnostics-cpu.c
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
dl-get-cpu-features.c
Fix misplaced const
2021-01-25 15:09:02 +01:00
dl-hwcap.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
dl-isa-level.h
ldconfig/x86: Store ISA level in cache and aux cache
2021-01-13 05:51:17 -08:00
dl-lookupcfg.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
dl-minsigstacksize.h
sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305]
2021-02-01 11:00:52 -08:00
dl-procinfo.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
dl-procinfo.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
dl-procruntime.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
dl-prop.h
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
dl-tunables.list
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
elf-initfini.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
elide.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
float128-abi.h
Move __isnanf128 to libc.so
2021-03-30 14:58:19 +05:30
fpu_control.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
get-cpuid-feature-leaf.c
<sys/platform/x86.h>: Remove the C preprocessor magic
2021-01-21 05:58:17 -08:00
get-isa-level.h
<sys/platform/x86.h>: Remove the C preprocessor magic
2021-01-21 05:58:17 -08:00
hp-timing.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
init-arch.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
isa-level.c
x86: Set minimum x86-64 level marker [BZ #27318]
2021-03-06 07:49:30 -08:00
jmp_buf-ssp.sym
x86: Support shadow stack pointer in setjmp/longjmp
2018-07-14 05:59:53 -07:00
ldbl2mpn.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
ldsodefs.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
libc-start.c
Use hidden visibility for early static PIE code
2021-01-21 15:55:01 +00:00
libc-start.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
link_map.h
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
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
2021-01-02 12:17:34 -08:00
Makeconfig
Add _Float64x function aliases.
2017-11-27 14:16:47 +00:00
Makefile
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
string_private.h
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
sysdep.h
x86-64: Add Avoid_Short_Distance_REP_MOVSB
2021-07-28 13:23:57 -07:00
tininess.h
Use sysdeps/x86/tininess.h for i386 and x86_64
2012-10-30 20:38:31 -07:00
tst-cet-legacy-1.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-1a.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-2.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-2a.c
x86/CET: Add tests with legacy non-CET shared objects
2018-07-25 04:47:05 -07:00
tst-cet-legacy-3.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-4.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-4a.c
x86/CET: Add tests with legacy non-CET shared objects
2018-07-25 04:47:05 -07:00
tst-cet-legacy-4b.c
x86/CET: Add tests with legacy non-CET shared objects
2018-07-25 04:47:05 -07:00
tst-cet-legacy-4c.c
x86/CET: Add tests with legacy non-CET shared objects
2018-07-25 04:47:05 -07:00
tst-cet-legacy-5.c
x86: Properly set usable CET feature bits [BZ #26625]
2021-01-29 03:58:11 -08:00
tst-cet-legacy-5a.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cet-legacy-5b.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cet-legacy-6.c
x86: Properly set usable CET feature bits [BZ #26625]
2021-01-29 03:58:11 -08:00
tst-cet-legacy-6a.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cet-legacy-6b.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cet-legacy-7.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-8.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-9-static.c
x86: Properly set usable CET feature bits [BZ #26625]
2021-01-29 03:58:11 -08:00
tst-cet-legacy-9.c
x86: Properly set usable CET feature bits [BZ #26625]
2021-01-29 03:58:11 -08:00
tst-cet-legacy-10-static.c
x86: Properly set usable CET feature bits [BZ #26625]
2021-01-29 03:58:11 -08:00
tst-cet-legacy-10.c
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
tst-cet-legacy-mod-1.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-2.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-4.c
x86/CET: Add tests with legacy non-CET shared objects
2018-07-25 04:47:05 -07:00
tst-cet-legacy-mod-5.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-5a.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-5b.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-5c.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-6.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-6a.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-6b.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-6c.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-6d.c
Call _dl_open_check after relocation [BZ #24259]
2019-07-01 12:23:22 -07:00
tst-cpu-features-cpuinfo-static.c
x86: Add PTWRITE feature detection [BZ #27346]
2021-02-07 08:01:14 -08:00
tst-cpu-features-cpuinfo.c
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
tst-cpu-features-supports-static.c
x86: Add PTWRITE feature detection [BZ #27346]
2021-02-07 08:01:14 -08:00
tst-cpu-features-supports.c
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
tst-get-cpu-features-static.c
Add _dl_x86_cpu_features to rtld_global
2015-08-13 03:41:22 -07:00
tst-get-cpu-features.c
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
tst-ifunc-isa-1-static.c
x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072]
2021-01-21 10:22:26 -08:00
tst-ifunc-isa-1.c
x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072]
2021-01-21 10:22:26 -08:00
tst-ifunc-isa-2-static.c
x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072]
2021-01-21 10:22:26 -08:00
tst-ifunc-isa-2.c
x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072]
2021-01-21 10:22:26 -08:00
tst-ifunc-isa.h
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
tst-isa-level-1.c
<sys/platform/x86.h>: Remove the C preprocessor magic
2021-01-21 05:58:17 -08:00
tst-isa-level-mod-1-baseline.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v2.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v3.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v4.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1.c
x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]
2021-01-07 13:10:13 -08:00
tst-ldbl-nonnormal-printf.c
Update copyright dates with scripts/update-copyrights
2021-01-02 12:17:34 -08:00
tst-memchr-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-memcmp-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-memmove-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-memrchr-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-memset-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-setjmp-cet.c
x86: Set header.feature_1 in TCB for always-on CET [BZ #27177]
2021-01-13 05:03:34 -08:00
tst-stack-align.h
Properly check stack alignment [BZ #27901]
2021-05-24 07:42:12 -07:00
tst-strchr-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-strcpy-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-string-rtm.h
x86: Install <bits/platform/x86.h> [BZ #27958]
2021-07-23 05:12:51 -07:00
tst-strlen-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-strncmp-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-strrchr-rtm.c
x86: Add string/memory function tests in RTM region
2021-03-29 07:40:17 -07:00
tst-sysconf-cache-linesize-static.c
x86: Handle _SC_LEVEL1_ICACHE_LINESIZE [BZ #27444]
2021-03-15 05:43:26 -07:00
tst-sysconf-cache-linesize.c
x86: Handle _SC_LEVEL1_ICACHE_LINESIZE [BZ #27444]
2021-03-15 05:43:26 -07:00
Versions
<sys/platform/x86.h>: Remove the C preprocessor magic
2021-01-21 05:58:17 -08:00