mirror of https://github.com/rust-lang/rust
75 lines
1.5 KiB
Rust
75 lines
1.5 KiB
Rust
// MIR for `vec_move` after PreCodegen
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fn vec_move(_1: Vec<impl Sized>) -> () {
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debug v => _1;
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let mut _0: ();
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let mut _2: std::vec::IntoIter<impl Sized>;
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let mut _3: std::vec::IntoIter<impl Sized>;
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let mut _4: &mut std::vec::IntoIter<impl Sized>;
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let mut _5: std::option::Option<impl Sized>;
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let mut _6: isize;
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let _8: ();
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scope 1 {
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debug iter => _3;
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let _7: impl Sized;
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scope 2 {
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debug x => _7;
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}
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}
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bb0: {
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StorageLive(_2);
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_2 = <Vec<impl Sized> as IntoIterator>::into_iter(move _1) -> [return: bb1, unwind continue];
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}
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bb1: {
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StorageLive(_3);
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_3 = move _2;
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goto -> bb2;
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}
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bb2: {
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StorageLive(_5);
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_4 = &mut _3;
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_5 = <std::vec::IntoIter<impl Sized> as Iterator>::next(move _4) -> [return: bb3, unwind: bb9];
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}
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bb3: {
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_6 = discriminant(_5);
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switchInt(move _6) -> [0: bb4, 1: bb6, otherwise: bb8];
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}
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bb4: {
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StorageDead(_5);
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drop(_3) -> [return: bb5, unwind continue];
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}
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bb5: {
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StorageDead(_3);
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StorageDead(_2);
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return;
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}
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bb6: {
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_7 = move ((_5 as Some).0: impl Sized);
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_8 = opaque::<impl Sized>(move _7) -> [return: bb7, unwind: bb9];
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}
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bb7: {
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StorageDead(_5);
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goto -> bb2;
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}
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bb8: {
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unreachable;
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}
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bb9 (cleanup): {
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drop(_3) -> [return: bb10, unwind terminate(cleanup)];
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}
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bb10 (cleanup): {
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resume;
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}
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}
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