rust/tests/mir-opt/dataflow-const-prop/enum.rs

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// unit-test: DataflowConstProp
// Not trackable, because variants could be aliased.
enum E {
V1(i32),
V2(i32)
}
// EMIT_MIR enum.main.DataflowConstProp.diff
fn main() {
let e = E::V1(0);
let x = match e { E::V1(x) => x, E::V2(x) => x };
}