https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91824
Alexander Monakov <amonakov at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amonakov at gcc dot gnu.org --- Comment #1 from Alexander Monakov <amonakov at gcc dot gnu.org> --- A related problem was previously discussed in PR 29776 but this is not a duplicate. In that PR part of the problem was with UB of clz/ctz for zero inputs, none of that poses a problem for popcount and pmovmskb.