Hint Resolve add_need_all_eagree add_need_all_lessdef
add_need_eagree add_need_vagree
add_needs_all_eagree add_needs_all_lessdef
add_needs_eagree add_needs_vagree
add_ros_need_eagree: na.

Lemma eagree_init_regs:
forall rl vl1 vl2 ne,
Val.lessdef_list vl1 vl2 ->
eagree (init_regs vl1 rl) (init_regs vl2 rl) ne.