mirror of https://github.com/rust-lang/rust
96 lines
2.3 KiB
Diff
96 lines
2.3 KiB
Diff
- // MIR for `main` before Derefer
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+ // MIR for `main` after Derefer
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fn main() -> () {
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let mut _0: ();
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let mut _1: std::slice::Iter<'_, i32>;
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let mut _2: &[i32; 2];
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let _3: [i32; 2];
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let mut _4: std::slice::Iter<'_, i32>;
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let mut _5: ();
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let _6: ();
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let mut _7: std::option::Option<&i32>;
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let mut _8: &mut std::slice::Iter<'_, i32>;
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let mut _9: &mut std::slice::Iter<'_, i32>;
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let mut _10: isize;
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let mut _11: !;
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let mut _13: i32;
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let mut _14: &[i32; 2];
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+ let mut _15: &i32;
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scope 1 {
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debug iter => _4;
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let _12: i32;
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scope 2 {
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debug foo => _12;
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}
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}
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bb0: {
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StorageLive(_1);
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StorageLive(_2);
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_14 = const main::promoted[0];
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_2 = &(*_14);
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_1 = <&[i32; 2] as IntoIterator>::into_iter(move _2) -> [return: bb1, unwind continue];
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}
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bb1: {
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StorageDead(_2);
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PlaceMention(_1);
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StorageLive(_4);
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_4 = move _1;
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goto -> bb2;
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}
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bb2: {
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StorageLive(_6);
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StorageLive(_7);
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StorageLive(_8);
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StorageLive(_9);
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_9 = &mut _4;
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_8 = &mut (*_9);
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_7 = <std::slice::Iter<'_, i32> as Iterator>::next(move _8) -> [return: bb3, unwind continue];
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}
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bb3: {
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StorageDead(_8);
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PlaceMention(_7);
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_10 = discriminant(_7);
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switchInt(move _10) -> [0: bb6, 1: bb5, otherwise: bb4];
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}
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bb4: {
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unreachable;
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}
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bb5: {
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StorageLive(_12);
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- _12 = (*((_7 as Some).0: &i32));
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+ _15 = deref_copy ((_7 as Some).0: &i32);
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+ _12 = (*_15);
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StorageLive(_13);
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_13 = _12;
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_6 = std::mem::drop::<i32>(move _13) -> [return: bb7, unwind continue];
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}
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bb6: {
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_0 = const ();
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StorageDead(_9);
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StorageDead(_7);
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StorageDead(_6);
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StorageDead(_4);
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StorageDead(_1);
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return;
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}
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bb7: {
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StorageDead(_13);
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StorageDead(_12);
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StorageDead(_9);
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StorageDead(_7);
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StorageDead(_6);
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_5 = const ();
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goto -> bb2;
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}
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}
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