https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115832
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Mohammed Faisal from comment #2) > I have also tested this with gcc 13.2.1 on a different machine and found a > similar slowdown. > Testing this with clang 14.0.6 gives only about a 2x slowdown as opposed to > the 13.5x slowdown with gcc. What is the relative difference in compiler speed between clang and GCC (rather than between -O0 and -O2 -fsanitize=undefine)?
