glibc/sysdeps
Adhemerval Zanella edb2a8f0ae math: Use acospif from CORE-MATH
The CORE-MATH implementation is correctly rounded (for any rounding mode)
and shows better performance to the generic acospif.

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                  54.8281        42.9070        21.74%
x86_64v2                54.1717        42.7497        21.08%
x86_64v3                49.3552        34.1512        30.81%
aarch64 (Neoverse)      17.9395        14.3733        19.88%
power8                  20.3110         8.8609        56.37%
power10                 11.3113        8.84067        21.84%

reciprocal-throughput    master        patched   improvement
x86_64                  21.2301        14.4803        31.79%
x86_64v2                20.6858        13.9506        32.56%
x86_64v3                16.1944        11.3377        29.99%
aarch64 (Neoverse)      11.4474        7.13282        37.69%
power8                  10.6916        3.57547        66.56%
power10                 4.64269        3.54145        23.72%

Reviewed-by: DJ Delorie <dj@redhat.com>
2025-02-12 16:31:57 -03:00
..
aarch64 math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
alpha math: update alpha ulps 2025-01-05 20:02:53 +01:00
arc math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
arm math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
csky Move <thread_pointer.h> to kernel-independent sysdeps directories 2025-01-09 19:30:16 +01:00
generic elf: Add l_soname accessor function for DT_SONAME values 2025-02-02 20:10:09 +01:00
gnu Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
hppa math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
htl htl: stop exporting __pthread_default_barrierattr. 2025-02-10 01:39:17 +01:00
hurd Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
i386 math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
ieee754 math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
loongarch math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
m68k Add missing include guards to <dl-tls.h> 2025-01-10 19:02:47 +01:00
mach hurd: Replace char foo[1024] with string_t 2025-02-10 20:10:59 +01:00
microblaze Move <thread_pointer.h> to kernel-independent sysdeps directories 2025-01-09 19:30:16 +01:00
mips math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
nptl nptl: Add support for setup guard pages with MADV_GUARD_INSTALL 2025-01-30 10:16:37 -03:00
or1k math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
posix Fix underallocation of abort_msg_s struct (CVE-2025-0395) 2025-01-22 08:17:17 -05:00
powerpc math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
pthread htl: move pthread_setcancelstate into libc. 2025-02-01 11:24:14 +01:00
riscv math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
s390 math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
sh sh: Fix tst-guard1 build 2025-01-31 09:34:36 -03:00
sparc math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00
unix ld.so: Decorate BSS mappings 2025-01-30 10:16:37 -03:00
wordsize-32 Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
wordsize-64 Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
x86 x86: Add missing #include <features.h> to <thread_pointer.h> 2025-01-09 19:30:41 +01:00
x86_64 math: Use acospif from CORE-MATH 2025-02-12 16:31:57 -03:00