[Bug target/113729] Missing APX NDD optimization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113729

--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kong Lingling <kongl...@gcc.gnu.org>:

https://gcc.gnu.org/g:1b761744dc3ea6f3d66a9c48f16719ad1c92d5ad

commit r15-2914-g1b761744dc3ea6f3d66a9c48f16719ad1c92d5ad
Author: Lingling Kong <lingling.k...@intel.com>
Date:   Wed Aug 14 16:38:46 2024 +0800

    i386: Optimization for APX NDD is always zero-uppered for sub/adc/sbb

    gcc/ChangeLog:

            PR target/113729
            * config/i386/i386.md (*subqi_1_zext<mode><nf_name>): New
            define_insn.
            (*subhi_1_zext<mode><nf_name>): Ditto.
            (*addqi3_carry_zext<mode>): Ditto.
            (*addhi3_carry_zext<mode>): Ditto.
            (*addqi3_carry_zext<mode>_0): Ditto.
            (*addhi3_carry_zext<mode>_0): Ditto.
            (*addqi3_carry_zext<mode>_0r): Ditto.
            (*addhi3_carry_zext<mode>_0r): Ditto.
            (*subqi3_carry_zext<mode>): Ditto.
            (*subhi3_carry_zext<mode>): Ditto.
            (*subqi3_carry_zext<mode>_0): Ditto.
            (*subhi3_carry_zext<mode>_0): Ditto.
            (*subqi3_carry_zext<mode>_0r): Ditto.
            (*subhi3_carry_zext<mode>_0r): Ditto.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr113729.c: Add more test.
            * gcc.target/i386/pr113729-adc-sbb.c: New test.