https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103997
--- Comment #10 from avieira at gcc dot gnu.org --- Hi Levy, I did a quick experiment, compiled exchange2_r with trunk and with trunk + all my epilogue and unroll vector patches reverted, with '-march=alderlake -Ofast -flto -funroll_loops' and the codegen is pretty much the same. Could it be that picking a different mode than we did before all of my patches, was a better choice? If this is the case then this is something that should be fixed by an appropriate cost-model, picking the best mode for the specific loop's epilogue. The patches I reverted were: f4ca0a53be18dfc7162fd5dcc1e73c4203805e14 7ca1582ca60dc84cc3fc46b9cda620e2a0bed1bb 016bd7523131b645bca5b5530c81ab5149922743 d3ff7420e941931d32ce2e332e7968fe67ba20af What were you using as a baseline for that last regression?
