glibc/sysdeps/ieee754
Adhemerval Zanella Netto 16439f419b math: Remove the error handling wrapper from fmod and fmodf
The error handling is moved to sysdeps/ieee754 version with no SVID
support.  The compatibility symbol versions still use the wrapper
with SVID error handling around the new code.  There is no new symbol
version nor compatibility code on !LIBM_SVID_COMPAT targets
(e.g. riscv).

The ia64 is unchanged, since it still uses the arch specific
__libm_error_region on its implementation.  For both i686 and m68k,
which provive arch specific implementation, wrappers are added so
no new symbol are added (which would require to change the
implementations).

It shows an small improvement, the results for fmod:

  Architecture     | Input           | master   | patch
  -----------------|-----------------|----------|--------
  x86_64 (Ryzen 9) | subnormals      | 12.5049  | 9.40992
  x86_64 (Ryzen 9) | normal          | 296.939  | 296.738
  x86_64 (Ryzen 9) | close-exponents | 16.0244  | 13.119
  aarch64 (N1)     | subnormal       | 6.81778  | 4.33313
  aarch64 (N1)     | normal          | 155.620  | 152.915
  aarch64 (N1)     | close-exponents | 8.21306  | 5.76138
  armhf (N1)       | subnormal       | 15.1083  | 14.5746
  armhf (N1)       | normal          | 244.833  | 241.738
  armhf (N1)       | close-exponents | 21.8182  | 22.457

Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>
2023-04-03 16:45:27 -03:00
..
dbl-64 math: Remove the error handling wrapper from fmod and fmodf 2023-04-03 16:45:27 -03:00
float128 Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
flt-32 math: Remove the error handling wrapper from fmod and fmodf 2023-04-03 16:45:27 -03:00
ldbl-64-128 Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
ldbl-96 Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
ldbl-128 Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
ldbl-128ibm Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
ldbl-128ibm-compat Move libc_freeres_ptrs and libc_subfreeres to hidden/weak functions 2023-03-27 13:57:55 -03:00
ldbl-opt C2x scanf binary constant handling 2023-03-02 19:10:37 +00:00
soft-fp math: Suppress -O0 warnings for soft-fp fsqrt [BZ #19444] 2023-01-11 17:50:51 -03:00
ieee754.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
k_standard.c Use copysign functions not __copysign functions in glibc libm. 2018-09-27 20:04:48 +00:00
k_standardf.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
k_standardl.c Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
libm-alias-finite.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Makefile Avoid -Wno-write-strings for k_standard.c. 2015-02-26 22:50:54 +00:00
s_lib_version.c Simplify math-svid-compat code. 2017-08-28 15:19:52 +00:00
s_matherr.c Obsolete matherr, _LIB_VERSION, libieee.a. 2017-08-21 17:45:10 +00:00
s_signgam.c Remove unnecessary math_private.h includes. 2018-09-28 21:53:33 +00:00