https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113729
--- Comment #3 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:a302cd6abbeccc93784b7ecc86f2e9106aa412ca commit r15-2913-ga302cd6abbeccc93784b7ecc86f2e9106aa412ca Author: Lingling Kong <lingling.k...@intel.com> Date: Wed Aug 14 16:35:29 2024 +0800 i386: Optimization for APX NDD is always zero-uppered for ADD gcc/ChangeLog: PR target/113729 * config/i386/i386.md (*addqi_1_zext<mode><nf_name>): New define. (*addhi_1_zext<mode><nf_name>): Ditto. gcc/testsuite/ChangeLog: * gcc.target/i386/pr113729.c: New test.