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Adhemerval Zanella d846f4c12d math: Use lgammaf from CORE-MATH 
The CORE-MATH implementation is correctly rounded (for any rounding mode)
and shows better performance to the generic lgammaf.

The code was adapted to glibc style, to use the definition of
math_config.h, to remove errno handling, to use math_narrow_eval
on overflow usage, and to adapt to make it reentrant.

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                       86.5609       70.3278       18.75%
x86_64v2                     78.3030       69.9709       10.64%
x86_64v3                     74.7470       59.8457       19.94%
i686                         387.355       229.761       40.68%
aarch64                      40.8341       33.7563       17.33%
power10                      26.5520       16.1672       39.11%
powerpc                      28.3145       17.0625       39.74%

reciprocal-throughput         master       patched  improvement
x86_64                       68.0461       48.3098       29.00%
x86_64v2                     55.3256       47.2476       14.60%
x86_64v3                     52.3015       38.9028       25.62%
i686                         340.848       195.707       42.58%
aarch64                      36.8000       30.5234       17.06%
power10                      20.4043       12.6268       38.12%
powerpc                      22.6588       13.8866       38.71%

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>
2024-11-22 10:52:27 -03:00
..
armv6
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armv6t2
string: Use builtins for ffs and ffsll
2024-02-01 09:31:33 -03:00
armv7
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be
arm: Fix softp-fp Implies (BZ #25635)
2020-03-06 09:53:24 -03:00
bits
login: structs utmp, utmpx, lastlog _TIME_BITS independence (bug 30701)
2024-04-19 14:38:17 +02:00
include/bits
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le
arm: Fix softp-fp Implies (BZ #25635)
2020-03-06 09:53:24 -03:00
nofpu
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nptl
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sys
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__longjmp.S
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add_n.S
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addmul_1.S
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aeabi_assert.c
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aeabi_atexit.c
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aeabi_errno_addr.c
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aeabi_lcsts.c
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aeabi_localeconv.c
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aeabi_math.c
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aeabi_mb_cur_max.c
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aeabi_memclr.c
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aeabi_memcpy.c
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aeabi_memmove.c
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aeabi_memset.c
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aeabi_sighandlers.S
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aeabi_unwind_cpp_pr1.c
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arm-features.h
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arm-ifunc.h
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arm-mcount.S
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arm-unwind-resume.S
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atomic-machine.h
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backtrace.c
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bsd-_setjmp.S
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bsd-setjmp.S
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configure
Convert to autoconf 2.72 (vanilla release, no distribution patches)
2024-06-17 21:15:28 +02:00
configure.ac
arm: Update _dl_tlsdesc_dynamic to preserve caller-saved registers (BZ 31372)
2024-03-19 14:53:30 -03:00
crti.S
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crtn.S
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dl-irel.h
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dl-lookupcfg.h
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dl-machine-rel.h
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dl-machine.h
arm: Avoid UB in elf_machine_rel()
2024-06-26 12:45:43 +02:00
dl-tls.h
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dl-tlsdesc.h
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dl-tlsdesc.S
arm: Remove ld.so __tls_get_addr plt usage
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dl-trampoline.S
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elf-initfini.h
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fclrexcpt.c
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fedisblxcpt.c
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feenablxcpt.c
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fegetenv.c
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fegetexcept.c
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fegetmode.c
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fegetround.c
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feholdexcpt.c
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fenv_private.h
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fesetenv.c
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fesetexcept.c
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fesetmode.c
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fesetround.c
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feupdateenv.c
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fgetexcptflg.c
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find_exidx.c
arm: Use _dl_find_object on __gnu_Unwind_Find_exidx (BZ 31405)
2024-02-23 08:50:00 -03:00
fix-fp-int-convert-overflow.h
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fpu_control.h
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fraiseexcpt.c
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framestate.c
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fsetexcptflg.c
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ftestexcept.c
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gcc-compat.h
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gccframe.h
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get-rounding-mode.h
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Implies
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jmpbuf-unwind.h
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ldbl-classify-compat.h
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2018-02-01 21:01:00 +00:00
ldsodefs.h
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libc-aeabi_read_tp.S
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libc-tls.c
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libm-test-ulps
math: Use lgammaf from CORE-MATH
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libm-test-ulps-name
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linkmap.h
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machine-gmon.h
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Makefile
elf: Enable TLS descriptor tests on aarch64
2024-03-19 14:53:30 -03:00
math-tests-trap.h
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math-use-builtins-sqrt.h
arm: Use sqrt{f} builtin
2020-06-22 11:09:50 -03:00
memcpy.S
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memmove.S
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memset.S
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pointer_guard.h
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preconfigure
configure: Use autoconf 2.71
2023-07-17 10:08:10 -04:00
preconfigure.ac
sysdeps: arm: Fix preconfigure script for ARMv8/v9 targets [BZ #29698]
2022-10-20 11:23:05 -03:00
rt-aeabi_unwind_cpp_pr1.c
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rt-arm-unwind-resume.S
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rtld-global-offsets.sym
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setfpucw.c
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setjmp.S
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sfp-machine.h
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sotruss-lib.c
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stackinfo.h
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stap-probe-machine.h
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start.S
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static-stubs.c
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strlen.S
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sub_n.S
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submul_1.S
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sysdep.h
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test-fpucw.c
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tlsdesc.c
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tlsdesc.sym
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tst-armtlsdescextlazy.c
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tst-armtlsdescextlazymod.c
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tst-armtlsdescextnow.c
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tst-armtlsdescextnowmod.c
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tst-armtlsdescloc.c
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tst-armtlsdesclocmod.c
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tst-audit.h
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tst-gnu2-tls2.h
arm: Update _dl_tlsdesc_dynamic to preserve caller-saved registers (BZ 31372)
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unwind-arch.h
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unwind-dw2-fde-glibc.c
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unwind-pe.c
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unwind-resume.c
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unwind-resume.h
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unwind.h
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utmp-size.h
login: Check default sizes of structs utmp, utmpx, lastlog
2024-04-19 14:38:17 +02:00
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