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// Basic test for liveness constraints: the region (`R1`) that appears
// in the type of `p` includes the points after `&v[0]` up to (but not
// including) the call to `use_x`. The `else` branch is not included.
// compile-flags:-Zborrowck=mir -Zverbose
// ^^^^^^^^^ force compiler to dump more region information
#![allow(warnings)]
fn use_x(_: usize) -> bool { true }
fn main() {
let mut v = [1, 2, 3];
let p = &v[0];
let q = p;
if true {
use_x(*q);
} else {
use_x(22);
}
}
// END RUST SOURCE
// START rustc.main.nll.0.mir
// | '_#2r | U0 | {bb2[0..=5], bb3[0..=1]}
// | '_#3r | U0 | {bb2[1..=5], bb3[0..=1]}
// | '_#4r | U0 | {bb2[4..=5], bb3[0..=1]}
// END rustc.main.nll.0.mir
// START rustc.main.nll.0.mir
// let _6: &'_#4r usize;
// ...
// let _2: &'_#3r usize;
// ...
// _2 = &'_#2r _1[_3];
// ...
// _6 = _2;
// END rustc.main.nll.0.mir
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