{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"///"}]}
    /// GVN can also do this optimization, but GVN is only run at mir-opt-level 2 so having this in
    /// Transform aggregates like [0, 0, 0, 0, 0] into [0; 5].
    /// InstSimplify helps unoptimized builds.