AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-21 20:40:05 +00:00
Code Issues Packages Projects Releases Wiki Activity
18596c5415
glibc/sysdeps/arm
History
Paul Zimmermann 392b3f0971 replace tgammaf by the CORE-MATH implementation 
The CORE-MATH implementation is correctly rounded (for any rounding mode).
This can be checked by exhaustive tests in a few minutes since there are
less than 2^32 values to check against for example GNU MPFR.
This patch also adds some bench values for tgammaf.

Tested on x86_64 and x86 (cfarm26).

With the initial GNU libc code it gave on an Intel(R) Core(TM) i7-8700:

      "tgammaf": {
       "": {
        "duration": 3.50188e+09,
        "iterations": 2e+07,
        "max": 602.891,
        "min": 65.1415,
        "mean": 175.094
       }
      }

With the new code:

      "tgammaf": {
       "": {
        "duration": 3.30825e+09,
        "iterations": 5e+07,
        "max": 211.592,
        "min": 32.0325,
        "mean": 66.1649
       }
      }

With the initial GNU libc code it gave on cfarm26 (i686):

  "tgammaf": {
   "": {
    "duration": 3.70505e+09,
    "iterations": 6e+06,
    "max": 2420.23,
    "min": 243.154,
    "mean": 617.509
   }
  }

With the new code:

  "tgammaf": {
   "": {
    "duration": 3.24497e+09,
    "iterations": 1.8e+07,
    "max": 1238.15,
    "min": 101.155,
    "mean": 180.276
   }
  }

Signed-off-by: Alexei Sibidanov <sibid@uvic.ca>
Signed-off-by: Paul Zimmermann <Paul.Zimmermann@inria.fr>

Changes in v2:
    - include <math.h> (fix the linknamespace failures)
    - restored original benchtests/strcoll-inputs/filelist#en_US.UTF-8 file
    - restored original wrapper code (math/w_tgammaf_compat.c),
      except for the dealing with the sign
    - removed the tgammaf/float entries in all libm-test-ulps files
    - address other comments from Joseph Myers
      (https://sourceware.org/pipermail/libc-alpha/2024-July/158736.html)

Changes in v3:
    - pass NULL argument for signgam from w_tgammaf_compat.c
    - use of math_narrow_eval
    - added more comments

Changes in v4:
    - initialize local_signgam to 0 in math/w_tgamma_template.c
    - replace sysdeps/ieee754/dbl-64/gamma_productf.c by dummy file

Changes in v5:
    - do not mention local_signgam any more in math/w_tgammaf_compat.c
    - initialize local_signgam to 1 instead of 0 in w_tgamma_template.c
      and added comment

Changes in v6:
    - pass NULL as 2nd argument of __ieee754_gammaf_r in
      w_tgammaf_compat.c, and check for NULL in e_gammaf_r.c

Changes in v7:
    - added Signed-off-by line for Alexei Sibidanov (author of the code)

Changes in v8:
    - added Signed-off-by line for Paul Zimmermann (submitted of the patch)

Changes in v9:
    - address comments from review by Adhemerval Zanella
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2024-10-11 11:12:32 +02:00
..
armv6 Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
armv6t2 string: Use builtins for ffs and ffsll 2024-02-01 09:31:33 -03:00
armv7 Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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 Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
le arm: Fix softp-fp Implies (BZ #25635) 2020-03-06 09:53:24 -03:00
nofpu Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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
__longjmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
add_n.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
addmul_1.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_assert.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_atexit.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_errno_addr.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_lcsts.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_localeconv.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_math.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_mb_cur_max.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_memclr.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_memcpy.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_memmove.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_memset.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_sighandlers.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
aeabi_unwind_cpp_pr1.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
arm-features.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
arm-ifunc.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
arm-mcount.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
arm-unwind-resume.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
atomic-machine.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
backtrace.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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 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-irel.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-machine-rel.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-machine.h arm: Avoid UB in elf_machine_rel() 2024-06-26 12:45:43 +02:00
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 arm: Remove ld.so __tls_get_addr plt usage 2024-04-04 17:03:32 -03:00
dl-trampoline.S 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
fclrexcpt.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fedisblxcpt.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
feenablxcpt.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fegetenv.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fegetexcept.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fegetmode.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fegetround.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
feholdexcpt.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fenv_private.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fesetenv.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fesetexcept.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fesetmode.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fesetround.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
feupdateenv.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
fgetexcptflg.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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 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
fraiseexcpt.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
framestate.c Move arm from ports to libc. 2014-02-08 01:49:39 +00:00
fsetexcptflg.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
ftestexcept.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
gcc-compat.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
get-rounding-mode.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Implies Remove sysdeps/arm/soft-fp directory. 2014-10-16 09:54:45 -07:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
ldbl-classify-compat.h Move LDBL_CLASSIFY_COMPAT to its own header. 2018-02-01 21:01:00 +00:00
ldsodefs.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
libc-aeabi_read_tp.S ARM: Move more aeabi routine magic out of Linux-specific directories 2014-06-26 15:08:29 -07:00
libc-tls.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
libm-test-ulps replace tgammaf by the CORE-MATH implementation 2024-10-11 11:12:32 +02:00
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 Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Makefile elf: Enable TLS descriptor tests on aarch64 2024-03-19 14:53:30 -03:00
math-tests-trap.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
math-use-builtins-sqrt.h arm: Use sqrt{f} builtin 2020-06-22 11:09:50 -03:00
memcpy.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
memmove.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
memset.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
pointer_guard.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 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 ARM: Move more aeabi routine magic out of Linux-specific directories 2014-06-26 15:08:29 -07:00
rt-arm-unwind-resume.S ARM: Consolidate with generic unwinder wrapper code 2015-01-05 15:42:16 -08:00
rtld-global-offsets.sym Move arm from ports to libc. 2014-02-08 01:49:39 +00:00
setfpucw.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
setjmp.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
sfp-machine.h Remove sysdeps/arm/soft-fp directory. 2014-10-16 09:54:45 -07:00
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
stap-probe-machine.h 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
static-stubs.c Move arm from ports to libc. 2014-02-08 01:49:39 +00:00
strlen.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
sub_n.S Move arm from ports to libc. 2014-02-08 01:49:39 +00:00
submul_1.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
test-fpucw.c Move arm from ports to libc. 2014-02-08 01:49:39 +00:00
tlsdesc.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tlsdesc.sym Move arm from ports to libc. 2014-02-08 01:49:39 +00:00
tst-armtlsdescextlazy.c [BZ #17075] ARM: Fix immediate calculation of R_ARM_TLS_DESC 2014-06-20 20:22:42 +01:00
tst-armtlsdescextlazymod.c [BZ #17075] ARM: Fix immediate calculation of R_ARM_TLS_DESC 2014-06-20 20:22:42 +01:00
tst-armtlsdescextnow.c [BZ #17075] ARM: Fix immediate calculation of R_ARM_TLS_DESC 2014-06-20 20:22:42 +01:00
tst-armtlsdescextnowmod.c [BZ #17075] ARM: Fix immediate calculation of R_ARM_TLS_DESC 2014-06-20 20:22:42 +01:00
tst-armtlsdescloc.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-armtlsdesclocmod.c 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-gnu2-tls2.h arm: Update _dl_tlsdesc_dynamic to preserve caller-saved registers (BZ 31372) 2024-03-19 14:53:30 -03:00
unwind-arch.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
unwind-dw2-fde-glibc.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
unwind-pe.c Move arm from ports to libc. 2014-02-08 01:49:39 +00:00
unwind-resume.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
unwind-resume.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
unwind.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
Versions Use -Werror=undef for assembly code. 2015-02-12 13:57:32 -08:00