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glibc/sysdeps/x86_64
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H.J. Lu a8ecb126d4 x86_64: Add log1p with FMA 
On Skylake, it changes log1p bench performance by:

        Before       After     Improvement
max     63.349       58.347       8%
min     4.448        5.651        -30%
mean    12.0674      10.336       14%

The minimum code path is

 if (hx < 0x3FDA827A)                          /* x < 0.41422  */
    {
      if (__glibc_unlikely (ax >= 0x3ff00000))           /* x <= -1.0 */
        {
	   ...
        }
      if (__glibc_unlikely (ax < 0x3e200000))           /* |x| < 2**-29 */
        {
          math_force_eval (two54 + x);          /* raise inexact */
          if (ax < 0x3c900000)                  /* |x| < 2**-54 */
            {
	      ...
            }
          else
            return x - x * x * 0.5;

FMA and non-FMA code sequences look similar.  Non-FMA version is slightly
faster.  Since log1p is called by asinh and atanh, it improves asinh
performance by:

        Before       After     Improvement
max     75.645       63.135       16%
min     10.074       10.071       0%
mean    15.9483      14.9089      6%

and improves atanh performance by:

        Before       After     Improvement
max     91.768       75.081       18%
min     15.548       13.883       10%
mean    18.3713      16.8011      8%
2023-08-21 10:44:26 -07:00
..
64 ld.so: Always use MAP_COPY to map the first segment [BZ #30452] 2023-06-30 10:42:42 -07:00
fpu x86_64: Add log1p with FMA 2023-08-21 10:44:26 -07:00
htl htl: Add tcb-offsets.sym for x86_64 2023-04-03 01:15:30 +02:00
multiarch wchar: Avoid PLT entries with _FORTIFY_SOURCE 2023-07-05 16:59:48 +02:00
nptl nptl: move tst-x86-64-tls-1 to nptl-only tests 2023-05-01 12:59:33 +02:00
sys hurd: Add sys/ucontext.h and sigcontext.h for x86_64 2023-04-10 20:11:43 +02:00
x32 Parameterize op_t from memcopy.h 2023-02-06 16:19:35 -03:00
____longjmp_chk.S
__longjmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
_mcount.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
abort-instr.h
add_n.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
addmul_1.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
configure configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
configure.ac x86/configure.ac: Define PI_STATIC_AND_HIDDEN/SUPPORT_STATIC_PIE 2022-02-14 07:34:54 -08:00
crti.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
crtn.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-cache.h x86: Make dl-cache.h and readelflib.c not Linux-specific 2023-06-26 10:04:31 -03:00
dl-hwcaps-subdirs.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-irel.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-machine.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-runtime.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-tls.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-tls.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-tlsdesc.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-tlsdesc.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-trampoline.h Fix misspellings in sysdeps/x86_64 -- BZ 25337. 2023-05-23 10:25:11 +00:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
ffs.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
ffsll.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
ifuncmain8.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
ifuncmod8.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Implies Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
isa-default-impl.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
isa.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
l10nflist.c Minor optimization of popcount in l10nflist 2011-08-11 14:07:04 -04:00
link-defines.sym elf: Remove Intel MPX support (lazy PLT, ld.so profile, and LD_AUDIT) 2021-10-11 11:14:02 -07:00
locale-defines.sym Implement optimized strcaecmp for x86-64. 2010-07-30 00:14:04 -07:00
localplt.data elf: Rework exception handling in the dynamic loader [BZ #25486] 2022-11-03 09:39:31 +01:00
lshift.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Makefile nptl: move tst-x86-64-tls-1 to nptl-only tests 2023-05-01 12:59:33 +02:00
memchr.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
memcmp-isa-default-impl.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
memcmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
memcmpeq.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
memcpy_chk.S string: Ensure *_chk routines have their hidden builtin definition available 2023-07-05 16:59:48 +02:00
memcpy.S x86_64: Fix build with --disable-multiarch (BZ 30721) 2023-08-10 10:29:29 -03:00
memmove_chk.S string: Ensure *_chk routines have their hidden builtin definition available 2023-07-05 16:59:48 +02:00
memmove.S x86_64: Fix build with --disable-multiarch (BZ 30721) 2023-08-10 10:29:29 -03:00
mempcpy_chk.S string: Ensure *_chk routines have their hidden builtin definition available 2023-07-05 16:59:48 +02:00
mempcpy.S X86-64: Remove previous default/SSE2/AVX2 memcpy/memmove 2016-06-08 13:58:08 -07:00
memrchr.S string: Add libc_hidden_proto for memrchr 2023-02-08 17:13:58 -03:00
memset_chk.S string: Ensure *_chk routines have their hidden builtin definition available 2023-07-05 16:59:48 +02:00
memset.S x86_64: Fix build with --disable-multiarch (BZ 30721) 2023-08-10 10:29:29 -03:00
mp_clz_tab.c
mul_1.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
preconfigure configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
preconfigure.ac rename configure.in to configure.ac 2013-10-30 17:32:08 +10:00
rawmemchr.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
rshift.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
rtld-offsets.sym x86-64: Align the stack in __tls_get_addr [BZ #21609] 2017-07-06 04:43:20 -07:00
setjmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
stackguard-macros.h BZ #15754: CVE-2013-4788 2013-09-23 00:52:09 -04:00
stackinfo.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
start.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
stpcpy.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
stpncpy.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strcasecmp_l-nonascii.c Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
strcasecmp_l.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strcasecmp.S Implement optimized strcaecmp for x86-64. 2010-07-30 00:14:04 -07:00
strcat.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strchr-isa-default-impl.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strchr.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strchrnul.S string: Add libc_hidden_proto for strchrnul 2023-02-08 17:13:56 -03:00
strcmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strcpy.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strcspn-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strcspn.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strlen.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strncase_l-nonascii.c Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
strncase_l.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strncase.S Add optimized strncasecmp versions for x86-64. 2010-08-14 22:04:01 -07:00
strncat.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strncmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strncpy.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strnlen.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strpbrk-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strpbrk.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strrchr.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strspn-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
strspn.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
submul_1.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tls_get_addr.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tlsdesc.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tlsdesc.sym x86-64: Align the stack in __tls_get_addr [BZ #21609] 2017-07-06 04:43:20 -07:00
tst-audit3.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-audit4-aux.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-audit4.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-audit5.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-audit6.c Modify several tests to use test-skeleton.c 2015-07-15 15:10:23 +05:30
tst-audit7.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-audit10-aux.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-audit10.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-audit.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-auditmod3a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod3b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod4a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod4b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod5a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod5b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod6b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6c.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod7a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod7b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod10a.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-auditmod10b.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-avx512-aux.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-avx512.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-avx512mod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx-aux.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-avx.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-avxmod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-glibc-hwcaps.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-platform-1.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-platformmod-1.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-platformmod-2.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-quad1.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-quad1pie.c Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-quad2.c Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-quad2pie.c Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-quadmod1.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-quadmod1pie.S Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-quadmod2.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-quadmod2pie.S Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32 2012-05-10 17:05:06 -07:00
tst-rsi-strlen.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-rsi-wcslen.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-split-dynreloc.c Fix dynamic linker issue with bind-now 2015-08-19 05:37:01 -07:00
tst-split-dynreloc.lds Fix dynamic linker issue with bind-now 2015-08-19 05:37:01 -07:00
tst-sse.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-ssemod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
varshift.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Versions Move __fentry__ version definition to sysdeps/{i386,x86_64} 2018-08-10 09:07:44 +02:00
wcpcpy-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcpcpy.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcpncpy-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcpncpy.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcscat-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcscat.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcschr.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcscmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcscpy-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcscpy.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcslen.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsncat-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsncat.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsncmp-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsncmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsncpy-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsncpy.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsnlen-generic.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsnlen.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wcsrchr.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wmemchr.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wmemcmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wmemset_chk.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
wmemset.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
wordcopy.c X86-64: Add dummy memcopy.h and wordcopy.c 2016-06-09 04:38:34 -07:00
x86-lp_size.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00