https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77850
--- Comment #3 from John David Anglin <danglin at gcc dot gnu.org> --- We currently use genetic code in hppa_gimplify_va_arg_expr: static tree hppa_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p, gimple_seq *post_p) { if (TARGET_64BIT) { /* Args grow upward. We can use the generic routines. */ return std_gimplify_va_arg_expr (valist, type, pre_p, post_p); }