{"ast_node_type":"variable","tokens":[{"end":49,"kind":"keyword","start":0,"text":"let"}]}
    let mut reg_addr = bx.ptradd(top, reg_off_v);
    // reg_value = *(@top + reg_off_v);
    if bx.tcx().sess.target.endian == Endian::Big && layout.size.bytes() != slot_size {