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glibc/sysdeps/riscv
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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
multiarch riscv: Fix alignment-ignorant memcpy implementation 2024-03-12 14:38:08 -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
rv32 Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
rv64 Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
rvd math: Use log10p1f from CORE-MATH 2024-11-01 11:27:40 -03:00
rvf 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.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
bsd-_setjmp.c
bsd-setjmp.c
configure Convert to autoconf 2.72 (vanilla release, no distribution patches) 2024-06-17 21:15:28 +02:00
configure.ac RISC-V: Enable static-pie. 2024-01-12 15:11:45 -03:00
dl-irel.h riscv: Add __riscv_hwprobe pointer to ifunc calls 2024-03-01 07:14:58 -08:00
dl-link.sym RISC-V: Add support for dl_runtime_profile (BZ #31151) 2023-12-30 11:00:10 +01:00
dl-machine.h RISC-V: Fix the static-PIE non-relocated object check 2024-03-25 15:17:13 +01:00
dl-relocate-ld.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
e_sqrtl.c 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 Introduce <elf-initfini.h> and ELF_INITFINI for all architectures 2020-02-18 15:12:25 +01:00
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
linkmap.h
machine-gmon.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Makefile RISC-V: Add support for dl_runtime_profile (BZ #31151) 2023-12-30 11:00:10 +01:00
math-tests-snan-payload.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
math-tests-trap.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 RISC-V: Use an autoconf template to produce `preconfigure' 2022-05-13 17:07:23 +01:00
riscv-ifunc.h riscv: Enable multi-arg ifunc resolvers 2024-03-01 07:14:59 -08:00
setjmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
sfp-machine.h 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
start.S riscv: align .preinit_array (bug 32228) 2024-10-02 13:04:30 +02:00
string-fza.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
string-fzi.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tininess.h RISC-V: Generic <math.h> and soft-fp Routines 2018-01-29 10:26:35 -08:00
tst-audit.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