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d846f4c12d
glibc/sysdeps/powerpc
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Adhemerval Zanella d846f4c12d math: Use lgammaf from CORE-MATH 
The CORE-MATH implementation is correctly rounded (for any rounding mode)
and shows better performance to the generic lgammaf.

The code was adapted to glibc style, to use the definition of
math_config.h, to remove errno handling, to use math_narrow_eval
on overflow usage, and to adapt to make it reentrant.

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                       86.5609       70.3278       18.75%
x86_64v2                     78.3030       69.9709       10.64%
x86_64v3                     74.7470       59.8457       19.94%
i686                         387.355       229.761       40.68%
aarch64                      40.8341       33.7563       17.33%
power10                      26.5520       16.1672       39.11%
powerpc                      28.3145       17.0625       39.74%

reciprocal-throughput         master       patched  improvement
x86_64                       68.0461       48.3098       29.00%
x86_64v2                     55.3256       47.2476       14.60%
x86_64v3                     52.3015       38.9028       25.62%
i686                         340.848       195.707       42.58%
aarch64                      36.8000       30.5234       17.06%
power10                      20.4043       12.6268       38.12%
powerpc                      22.6588       13.8866       38.71%

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 Refer to C23 in place of C2X in glibc 2024-02-01 11:02:01 +00:00
fpu math: Use lgammaf from CORE-MATH 2024-11-22 10:52:27 -03:00
nofpu math: Use lgammaf 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
power4 Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
power6 Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
powerpc32 nptl: Fix Race conditions in pthread cancellation [BZ#12683] 2024-08-23 14:27:43 -03:00
powerpc64 powerpc64le: _init/_fini file changes for ROP 2024-11-20 16:50:34 -05:00
sys/platform Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
abort-instr.h
atomic-machine.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-procinfo.c powerpc: Add HWCAP3/HWCAP4 data to TCB for Power Architecture. 2024-03-19 17:19:27 -05:00
dl-procinfo.h elf: Remove HWCAP_IMPORTANT 2024-06-18 10:45:36 +02:00
dl-tls.c 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-tunables.list 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
hwcapinfo.c powerpc: Add HWCAP3/HWCAP4 data to TCB for Power Architecture. 2024-03-19 17:19:27 -05:00
hwcapinfo.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
ifunc-sel.h Fix powerpc ifunc-sel.h build for -Os. 2018-03-02 22:27:56 +00:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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
locale-defines.sym powerpc: strcasestr optmization for power8 2016-04-22 19:23:13 +05:30
longjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
machine-gmon.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Makefile powerpc: Fix unrecognized instruction errors with recent binutils 2021-09-29 14:42:20 -05:00
math-tests-snan-cast.h 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
mod-cache-ppc.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
mod-tlsopt-powerpc.c elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10 (BZ# 29776) 2022-11-14 22:04:25 +10:30
mp_clz_tab.c
novmx-longjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
novmx-sigjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
novmxsetjmp.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
preconfigure powerpc: Placeholder and infrastructure/build support to add Power11 related changes. 2024-03-19 21:11:34 -05:00
preconfigure.ac powerpc: Placeholder and infrastructure/build support to add Power11 related changes. 2024-03-19 21:11:34 -05:00
rtld-global-offsets.sym powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
sigjmp.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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
string-fza.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
test-arith.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
test-arithf.c
test-get_hwcap-static.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
test-get_hwcap.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
test-gettimebase.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-cache-ppc-static-dlopen.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-cache-ppc-static.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-cache-ppc.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-set_ppr.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-tlsifunc-static.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-tlsifunc.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-tlsopt-powerpc.c tst-tlsopt-powerpc as a shared lib 2017-08-03 15:39:21 +09:30
utmp-size.h login: Check default sizes of structs utmp, utmpx, lastlog 2024-04-19 14:38:17 +02:00
Versions powerpc: Add space for HWCAP3/HWCAP4 in the TCB for future Power. 2023-12-15 20:20:14 -06:00