[Bug target/81904] FMA and addsub instructions

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81904

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>:

https://gcc.gnu.org/g:f0b7a61d83534fc8f7aa593b1f0f0357a371a800

commit r14-2919-gf0b7a61d83534fc8f7aa593b1f0f0357a371a800
Author: liuhongt <hongtao....@intel.com>
Date:   Mon Jul 31 16:03:45 2023 +0800

    Support vec_fmaddsub/vec_fmsubadd for vector HFmode.

    AVX512FP16 supports vfmaddsubXXXph and vfmsubaddXXXph.
    Also remove scalar mode from fmaddsub/fmsubadd pattern since there's
    no scalar instruction for that.

    gcc/ChangeLog:

            PR target/81904
            * config/i386/sse.md (vec_fmaddsub<mode>4): Extend to vector
            HFmode, use mode iterator VFH instead.
            (vec_fmsubadd<mode>4): Ditto.
            (<sd_mask_codefor>fma_fmaddsub_<mode><sd_maskz_name><round_name>):
            Remove scalar mode from iterator, use VFH_AVX512VL instead.
            (<sd_mask_codefor>fma_fmsubadd_<mode><sd_maskz_name><round_name>):
            Ditto.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr81904.c: New test.