https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119010
--- Comment #16 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:18668d9c196a36dc7c0cd698a2a767b8f8c8e8a4 commit r15-9053-g18668d9c196a36dc7c0cd698a2a767b8f8c8e8a4 Author: Richard Biener <rguent...@suse.de> Date: Thu Mar 27 11:29:21 2025 +0100 target/119010 - missing reservations for Zen4/5 and SSE compares There's the znver4_sse_test reservation which matches the memory-less SSE compares but currently requires prefix_extra == 1. The old znver automata in this case sometimes uses znver1-double instead of znver1-direct, but it's quite a maze. The following simply drops the prefix_extra requirement, but I have no idea what I'm doing here. There doesn't seem to be any documentation on the scheduler relevant attributes used, or at least I cannot find that. PR target/119010 * config/i386/zn4zn5.md (znver4_sse_test): Drop test of prefix_extra attribute.