https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109705
--- Comment #18 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Hmm. this loop should almost definitely get vectorized if vect_double is true: for (i=0;i<nn;i++) *(m->c+i) = num__infty; I wonder why it is not on powerpc. vect_double for powerpc does: || ([istarget powerpc*-*-*] && [check_vsx_hw_available])