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994fec2397
glibc/sysdeps/m68k
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Adhemerval Zanella 994fec2397 math: Use erff from CORE-MATH 
The CORE-MATH implementation is correctly rounded (for any rounding mode)
and shows better performance to the generic erff.

The code was adapted to glibc style and to use the definition of
math_config.h.

Benchtest on x64_64 (Ryzen 9 5900X, gcc 14.2.1), aarch64 (M1,
gcc 13.2.1), and powerpc (POWER10, gcc 13.2.1):

latency                       master       patched  improvement
x86_64                       85.7363       45.1372       47.35%
x86_64v2                     86.6337       38.5816       55.47%
x86_64v3                     71.3810       34.0843       52.25%
i686                         190.143       97.5014       48.72%
aarch64                      34.9091       14.9320       57.23%
power10                      38.6160        8.5188       77.94%
powerpc                      39.7446       8.45781       78.72%

reciprocal-throughput         master       patched  improvement
x86_64                       35.1739       14.7603       58.04%
x86_64v2                     34.5976       11.2283       67.55%
x86_64v3                     27.3260        9.8550       63.94%
i686                         91.0282       30.8840       66.07%
aarch64                      22.5831        6.9615       69.17%
power10                      18.0386        3.0918       82.86%
powerpc                      20.7277       3.63396       82.47%

Signed-off-by: Alexei Sibidanov <sibid@uvic.ca>
Signed-off-by: Paul Zimmermann <Paul.Zimmermann@inria.fr>
Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
2024-11-22 10:52:27 -03:00
..
bits login: structs utmp, utmpx, lastlog _TIME_BITS independence (bug 30701) 2024-04-19 14:38:17 +02:00
coldfire math: Use log1pf from CORE-MATH 2024-11-01 11:27:39 -03:00
fpu Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
m680x0 math: Use erff from CORE-MATH 2024-11-22 10:52:27 -03:00
nptl Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
sys Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
__longjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
abort-instr.h Move m68k from ports to libc 2014-02-10 20:22:40 +01:00
asm-syntax.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
backtrace.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
bsd-_setjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
bsd-setjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
configure configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
configure.ac elf: Replace PI_STATIC_AND_HIDDEN with opposite HIDDEN_VAR_NEEDS_DYNAMIC_RELOC 2022-04-26 09:26:22 -07:00
crti.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
crtn.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-machine.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-tls.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
elf-initfini.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fpu_control.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
gccframe.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Implies Move m68k from ports to libc 2014-02-10 20:22:40 +01:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
ldsodefs.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
libc-tls.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Makefile Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
math-use-builtins-ffs.h string: Use builtins for ffs and ffsll 2024-02-01 09:31:33 -03:00
memchr.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
memcopy.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
preconfigure configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
preconfigure.ac m68k: Use an autoconf template to produce `preconfigure' 2022-05-13 17:07:23 +01:00
rawmemchr.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
setjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
shlib-versions Remove configuration name patterns from shlib-versions. 2014-09-12 12:28:47 +00:00
sotruss-lib.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
stackinfo.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
start.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
strchr.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
strchrnul.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
symbol-hacks.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
sysdep.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-audit.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
unwind-arch.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
utmp-size.h login: Check default sizes of structs utmp, utmpx, lastlog 2024-04-19 14:38:17 +02:00
Versions Move m68k from ports to libc 2014-02-10 20:22:40 +01:00
wcpcpy_chk.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
wordcopy.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00