glibc/sysdeps
Adhemerval Zanella be85208b9f math: Use cospif from CORE-MATH
The CORE-MATH implementation is correctly rounded (for any rounding mode)
and shows better performance to the generic cospif.

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                    47.4679        38.4157        19.07%
x86_64v2                  46.9686        38.3329        18.39%
x86_64v3                  43.8929        31.8510        27.43%
aarch64 (Neoverse)        18.8867        13.2089        30.06%
power8                    22.9435         7.8023        65.99%
power10                   15.4472        7.77505        49.67%

reciprocal-throughput      master        patched   improvement
x86_64                    20.9518        11.4991        45.12%
x86_64v2                  19.8699        10.5921        46.69%
x86_64v3                  19.3475         9.3998        51.42%
aarch64 (Neoverse)        12.5767         6.2158        50.58%
power8                    15.0566         3.2654        78.31%
power10                    9.2866         3.1147        66.46%

Reviewed-by: DJ Delorie <dj@redhat.com>
2025-02-12 16:31:57 -03:00
..
aarch64 math: Use cospif 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 cospif from CORE-MATH 2025-02-12 16:31:57 -03:00
arm math: Use cospif 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 cospif 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 cospif from CORE-MATH 2025-02-12 16:31:57 -03:00
ieee754 math: Use cospif from CORE-MATH 2025-02-12 16:31:57 -03:00
loongarch math: Use cospif 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 cospif 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 cospif 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 cospif 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 cospif from CORE-MATH 2025-02-12 16:31:57 -03:00
s390 math: Use cospif 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 cospif 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 cospif from CORE-MATH 2025-02-12 16:31:57 -03:00