mbox series

[0/8] Add sinf/cosf/sincosf CORE-MATH implementations

Message ID 20260325192357.1284741-1-adhemerval.zanella@linaro.org (mailing list archive)
Headers
Series Add sinf/cosf/sincosf CORE-MATH implementations |

Message

Adhemerval Zanella Netto March 25, 2026, 7:22 p.m. UTC 
  This patchset adds the optimized and correctly rounded cosf, sinf, and
sincosf from CORE-MATH [1]. The patch adds new input ranges for the
benchtests based on feedback from SPECcpu2017 usage.

The performance is similar, with some gains and some regressions. The
x86_64-v1 shows some performance regression because the CORE-MATH
implementation relies on roundeven. The x86_64v2 and forward provide
a specific instruction, and x86_64 already provides an FMA ifunc variant.

[1] https://gitlab.inria.fr/core-math/core-math

Adhemerval Zanella (8):
  benchtest: Redefine cosf ranges
  benchtest: Redefine sinf ranges
  benchtest: Redefine sincosf ranges
  math: Use sinf from CORE-MATH
  math: Use cosf from CORE-MATH
  math: Use sincosf from CORE-MATH
  math: Consolidate common definitions for cosf/sinf/tanf/sincosf
  math: Remove unused definitions for sinf/cosf/sincosf implementation

 SHARED-FILES                                  |    6 +
 benchtests/cosf-inputs                        | 5409 ++++++-----
 benchtests/sincosf-inputs                     | 8309 ++++++-----------
 benchtests/sinf-inputs                        | 7919 ++++++----------
 math/Makefile                                 |    2 +
 math/auto-libm-test-in                        |    1 +
 math/auto-libm-test-out-sincos                |   25 +
 sysdeps/ieee754/flt-32/libm-test-ulps         |   36 +
 sysdeps/ieee754/flt-32/reduce_aux.h           |   38 +-
 .../flt-32/reduce_aux_data.c}                 |   37 +-
 sysdeps/ieee754/flt-32/s_cosf.c               |  160 +-
 sysdeps/ieee754/flt-32/s_sincosf.c            |  191 +-
 sysdeps/ieee754/flt-32/s_sincosf.h            |   95 -
 sysdeps/ieee754/flt-32/s_sincosf_common.c     |   90 +
 sysdeps/ieee754/flt-32/s_sincosf_common.h     |   63 +
 sysdeps/ieee754/flt-32/s_sincosf_data.c       |  157 +-
 sysdeps/ieee754/flt-32/s_sincosf_data.h       |   64 +
 sysdeps/ieee754/flt-32/s_sinf.c               |  164 +-
 sysdeps/ieee754/flt-32/s_tanf.c               |   65 +-
 sysdeps/ieee754/flt-32/sincosf_poly.h         |   87 -
 sysdeps/x86/fpu/sincosf_poly.h                |  111 -
 21 files changed, 9752 insertions(+), 13277 deletions(-)
 rename sysdeps/{x86/fpu/s_sincosf_data.c => ieee754/flt-32/reduce_aux_data.c} (58%)
 delete mode 100644 sysdeps/ieee754/flt-32/s_sincosf.h
 create mode 100644 sysdeps/ieee754/flt-32/s_sincosf_common.c
 create mode 100644 sysdeps/ieee754/flt-32/s_sincosf_common.h
 create mode 100644 sysdeps/ieee754/flt-32/s_sincosf_data.h
 delete mode 100644 sysdeps/ieee754/flt-32/sincosf_poly.h
 delete mode 100644 sysdeps/x86/fpu/sincosf_poly.h