[Bug middle-end/110832] [14 Regression] 14% capacita -O2 regression between g:9fdbd7d6fa5e0a76 (2023-07-26 01:45) and g:ca912a39cccdd990 (2023-07-27 03:44) on zen3 and core

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110832

--- Comment #12 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:0c563a935c47e507ad97e15860ac017c14877b31

commit r14-3118-g0c563a935c47e507ad97e15860ac017c14877b31
Author: liuhongt <hongtao....@intel.com>
Date:   Wed Aug 9 14:25:53 2023 +0800

    i386: Do not sanitize upper part of V2HFmode and V4HFmode reg with
-fno-trapping-math [PR110832]

    Also add ix86_partial_vec_fp_math to to condition of V2HF/V4HF named
    patterns in order to avoid generation of partial vector V8HFmode
    trapping instructions.

    gcc/ChangeLog:

            PR target/110832
            * config/i386/mmx.md: (movq_<mode>_to_sse): Also do not
            sanitize upper part of V4HFmode register with
            -fno-trapping-math.
            (<insn>v4hf3): Enable for ix86_partial_vec_fp_math.
            (<divv4hf3): Ditto.
            (<insn>v2hf3): Ditto.
            (divv2hf3): Ditto.
            (movd_v2hf_to_sse): Do not sanitize upper part of V2HFmode
            register with -fno-trapping-math.