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// unit-test: ConstProp
// EMIT_MIR mutable_variable.main.ConstProp.diff
fn main() {
// CHECK-LABEL: fn main(
// CHECK: debug x => [[x:_.*]];
// CHECK: debug y => [[y:_.*]];
// CHECK: [[x]] = const 42_i32;
// CHECK: [[x]] = const 99_i32;
// CHECK: [[y]] = const 99_i32;
let mut x = 42;
x = 99;
let y = x;
}
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