// MIR for `vec_move` after PreCodegen

fn vec_move(_1: Vec<impl Sized>) -> () {
    debug v => _1;                       // in scope 0 at $DIR/loops.rs:+0:17: +0:22
    let mut _0: ();                      // return place in scope 0 at $DIR/loops.rs:+0:41: +0:41
    let mut _2: std::vec::IntoIter<impl Sized>; // in scope 0 at $DIR/loops.rs:+1:14: +1:15
    let mut _3: std::vec::IntoIter<impl Sized>; // in scope 0 at $DIR/loops.rs:+1:14: +1:15
    let mut _4: &mut std::vec::IntoIter<impl Sized>; // in scope 0 at $DIR/loops.rs:+1:14: +1:15
    let mut _5: std::option::Option<impl Sized>; // in scope 0 at $DIR/loops.rs:+1:14: +1:15
    let mut _6: isize;                   // in scope 0 at $DIR/loops.rs:+1:5: +3:6
    let _8: ();                          // in scope 0 at $DIR/loops.rs:+1:14: +1:15
    scope 1 {
        debug iter => _3;                // in scope 1 at $DIR/loops.rs:+1:14: +1:15
        let _7: impl Sized;              // in scope 1 at $DIR/loops.rs:+1:9: +1:10
        scope 2 {
            debug x => _7;               // in scope 2 at $DIR/loops.rs:+1:9: +1:10
        }
    }

    bb0: {
        StorageLive(_2);                 // scope 0 at $DIR/loops.rs:+1:14: +1:15
        _2 = <Vec<impl Sized> as IntoIterator>::into_iter(move _1) -> bb1; // scope 0 at $DIR/loops.rs:+1:14: +1:15
                                         // mir::Constant
                                         // + span: $DIR/loops.rs:26:14: 26:15
                                         // + literal: Const { ty: fn(Vec<impl Sized>) -> <Vec<impl Sized> as IntoIterator>::IntoIter {<Vec<impl Sized> as IntoIterator>::into_iter}, val: Value(<ZST>) }
    }

    bb1: {
        StorageLive(_3);                 // scope 0 at $DIR/loops.rs:+1:14: +1:15
        _3 = move _2;                    // scope 0 at $DIR/loops.rs:+1:14: +1:15
        goto -> bb2;                     // scope 1 at $DIR/loops.rs:+1:5: +3:6
    }

    bb2: {
        StorageLive(_5);                 // scope 1 at $DIR/loops.rs:+1:14: +1:15
        _4 = &mut _3;                    // scope 1 at $DIR/loops.rs:+1:14: +1:15
        _5 = <std::vec::IntoIter<impl Sized> as Iterator>::next(_4) -> [return: bb3, unwind: bb9]; // scope 1 at $DIR/loops.rs:+1:14: +1:15
                                         // mir::Constant
                                         // + span: $DIR/loops.rs:26:14: 26:15
                                         // + literal: Const { ty: for<'a> fn(&'a mut std::vec::IntoIter<impl Sized>) -> Option<<std::vec::IntoIter<impl Sized> as Iterator>::Item> {<std::vec::IntoIter<impl Sized> as Iterator>::next}, val: Value(<ZST>) }
    }

    bb3: {
        _6 = discriminant(_5);           // scope 1 at $DIR/loops.rs:+1:14: +1:15
        switchInt(move _6) -> [0: bb4, 1: bb6, otherwise: bb8]; // scope 1 at $DIR/loops.rs:+1:14: +1:15
    }

    bb4: {
        StorageDead(_5);                 // scope 1 at $DIR/loops.rs:+3:5: +3:6
        drop(_3) -> bb5;                 // scope 0 at $DIR/loops.rs:+3:5: +3:6
    }

    bb5: {
        StorageDead(_3);                 // scope 0 at $DIR/loops.rs:+3:5: +3:6
        StorageDead(_2);                 // scope 0 at $DIR/loops.rs:+3:5: +3:6
        return;                          // scope 0 at $DIR/loops.rs:+4:2: +4:2
    }

    bb6: {
        _7 = move ((_5 as Some).0: impl Sized); // scope 1 at $DIR/loops.rs:+1:9: +1:10
        _8 = opaque::<impl Sized>(move _7) -> [return: bb7, unwind: bb9]; // scope 2 at $DIR/loops.rs:+2:9: +2:18
                                         // mir::Constant
                                         // + span: $DIR/loops.rs:27:9: 27:15
                                         // + literal: Const { ty: fn(impl Sized) {opaque::<impl Sized>}, val: Value(<ZST>) }
    }

    bb7: {
        StorageDead(_5);                 // scope 1 at $DIR/loops.rs:+3:5: +3:6
        goto -> bb2;                     // scope 1 at $DIR/loops.rs:+1:5: +3:6
    }

    bb8: {
        unreachable;                     // scope 1 at $DIR/loops.rs:+1:14: +1:15
    }

    bb9 (cleanup): {
        drop(_3) -> [return: bb10, unwind terminate]; // scope 0 at $DIR/loops.rs:+3:5: +3:6
    }

    bb10 (cleanup): {
        resume;                          // scope 0 at $DIR/loops.rs:+0:1: +4:2
    }
}