https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91444
rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |rsandifo at gcc dot gnu.org --- Comment #3 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- Mine. Looks like a latent problem. The vectoriser doesn't check whether the function actually is a target-specific built-in function before passing it to targetm.vectorize.builtin_md_vectorized_function.