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

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// unit-test: DataflowConstProp
struct S(i32);
// EMIT_MIR struct.main.DataflowConstProp.diff
fn main() {
let mut s = S(1);
let a = s.0 + 2;
s.0 = 3;
let b = a + s.0;
}