{"ast_node_type":"variable","tokens":[{"end":67,"kind":"keyword","start":0,"text":"let"}]}
    let use_stack = bx.icmp(IntPredicate::IntSGE, reg_off_v, zero);
    let mut reg_off_v = bx.load(bx.type_i32(), reg_off, offset_align);
    bx.cond_br(use_stack, on_stack, maybe_reg);