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glibc/sysdeps/powerpc
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Adhemerval Zanella f338c7c5f5 math: Use log10p1f from CORE-MATH 
The CORE-MATH implementation is correctly rounded (for any rounding mode)
and shows slight better performance to the generic log10p1f.

The code was adapted to glibc style and to use the definition of
math_config.h (to handle errno, overflow, and underflow).

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                      68.5251        32.2627        52.92%
x86_64v2                    68.8912        32.7887        52.41%
x86_64v3                    59.3427        27.0521        54.41%
i686                        162.026        103.383        36.19%
aarch64                     26.8513        14.5695        45.74%
power10                     12.7426         8.4929        33.35%
powerpc                     16.6768        9.29135        44.29%

reciprocal-throughput        master        patched   improvement
x86_64                      26.0969        12.4023        52.48%
x86_64v2                    25.0045        11.0748        55.71%
x86_64v3                    20.5610        10.2995        49.91%
i686                        89.8842        78.5211        12.64%
aarch64                     17.1200         9.4832        44.61%
power10                      6.7814         6.4258         5.24%
powerpc                      15.769         7.6825        51.28%

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>
2024-11-01 11:27:40 -03:00
..
bits Refer to C23 in place of C2X in glibc 2024-02-01 11:02:01 +00:00
fpu math: Use log10p1f from CORE-MATH 2024-11-01 11:27:40 -03:00
nofpu math: Use log10p1f from CORE-MATH 2024-11-01 11:27:40 -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: Adhere to ABI stack alignment requirement 2024-10-28 16:12:34 -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
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