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9583836785
glibc/sysdeps/aarch64
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Adhemerval Zanella 9583836785 math: Use coshf from CORE-MATH 
The CORE-MATH implementation is correctly rounded (for any rounding mode),
although it should worse performance than current one.  The current
implementation performance comes mainly from the internal usage of
the optimize expf implementation, and shows a maximum ULPs of 2 for
FE_TONEAREST and 3 for other rounding modes.

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 (Neoverse-N1,
gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1):

Latency                      master        patched   improvement
x86_64                      40.6995        49.0737       -20.58%
x86_64v2                    40.5841        44.3604        -9.30%
x86_64v3                    39.3879        39.7502        -0.92%
i686                       112.3380       129.8570       -15.59%
aarch64 (Neoverse)          18.6914        17.0946         8.54%
power10                     11.1343        9.3245         16.25%

reciprocal-throughput        master        patched   improvement
x86_64                      18.6471        24.1077       -29.28%
x86_64v2                    17.7501        20.2946       -14.34%
x86_64v3                    17.8262        17.1877         3.58%
i686                        64.1454        86.5645       -34.95%
aarch64 (Neoverse)          9.77226        12.2314       -25.16%
power10                      4.0200        5.3316        -32.63%

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>
2024-12-18 17:24:43 -03:00
..
bits Refer to C23 in place of C2X in glibc 2024-02-01 11:02:01 +00:00
fpu AArch64: Improve codegen of AdvSIMD expf family 2024-12-17 15:28:22 +00:00
multiarch aarch64: Remove non-temporal load/stores from oryon-1's memset 2024-11-21 11:32:23 -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
__arm_za_disable.S aarch64: Add SME runtime support 2024-01-02 15:43:30 +00:00
__longjmp.S aarch64: Add longjmp support for SME 2024-01-02 15:43:30 +00:00
__mtag_tag_region.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
__mtag_tag_zero_region.S 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
bsd-_setjmp.c aarch64: Rename place holder .S files to .c 2020-07-08 15:02:37 +01:00
bsd-setjmp.c aarch64: Rename place holder .S files to .c 2020-07-08 15:02:37 +01:00
configure Convert to autoconf 2.72 (vanilla release, no distribution patches) 2024-06-17 21:15:28 +02:00
configure.ac aarch64: fix check for SVE support in assembler 2024-03-14 14:27:56 +00:00
cpu-features.h AArch64: Remove thunderx{,2} memcpy 2024-11-20 11:23:53 +00:00
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-audit-check.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-bti.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-diagnostics-cpu.c aarch64: Enhanced CPU diagnostics for ld.so 2024-04-08 16:48:55 +02:00
dl-dtprocnum.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-irel.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-link.sym elf: Fix runtime linker auditing on aarch64 (BZ #26643) 2022-02-01 14:49:46 -03:00
dl-lookupcfg.h 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-prop.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-start.S 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-tlsdesc.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-tlsdesc.S aarch64: Remove ld.so __tls_get_addr plt usage 2024-04-04 17:02:32 -03:00
dl-trampoline.S 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
e_sqrtl.c 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
hp-timing.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Implies Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +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-mtag.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
libc-start.c aarch64: Make cpu-features definitions not Linux-specific 2024-01-04 23:48:54 +01:00
libc-tls.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
libm-test-ulps math: Use coshf from CORE-MATH 2024-12-18 17:24:43 -03:00
libm-test-ulps-name Do not hardcode platform names in manual/libm-err-tab.pl (bug 14139). 2016-11-04 16:49:06 +00:00
linkmap.h 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 aarch64: Add longjmp test for SME 2024-01-02 16:54:21 +00:00
math-tests-trap.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
mcount.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
memchr.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
memcmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
memcpy.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
memmove.c aarch64: Rename place holder .S files to .c 2020-07-08 15:02:37 +01:00
memrchr.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
memset.S AArch64: Remove zva_128 from memset 2024-11-29 13:27:13 +00:00
preconfigure elf: Enable TLS descriptor tests on aarch64 2024-03-19 14:53:30 -03:00
rawmemchr.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
rtld-global-offsets.sym aarch64: Add SME runtime support 2024-01-02 15:43:30 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
sfp-machine.h Break more lines before not after operators. 2019-02-25 13:19:19 +00:00
sotruss-lib.c 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
stpcpy.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
strcmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
strcpy.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
strlen.S AArch64: Improve generic strlen 2024-08-07 14:58:46 +01:00
strncmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
strnlen.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
strrchr.S 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
tlsdesc.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tlsdesc.sym aarch64: Use explicit offsets in _dl_tlsdesc_dynamic 2016-12-02 16:52:57 +01:00
tst-audit26.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-audit26mod.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-audit26mod.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-audit27.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-audit27mod.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-audit27mod.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
tst-auditmod26.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-auditmod27.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-ifunc-arg-1.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-ifunc-arg-2.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-sme-jmp.c aarch64: Add longjmp test for SME 2024-01-02 16:54:21 +00:00
tst-vpcs-mod.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-vpcs.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Versions
wordcopy.c aarch64: Don't build wordcopy 2022-10-28 11:14:54 +01:00