mirror of https://github.com/rust-lang/rust
50 lines
1.1 KiB
Diff
50 lines
1.1 KiB
Diff
- // MIR for `wrap_unwrap` before GVN
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+ // MIR for `wrap_unwrap` after GVN
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fn wrap_unwrap(_1: T) -> T {
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debug x => _1;
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let mut _0: T;
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let mut _2: std::option::Option<T>;
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let mut _3: T;
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let mut _4: isize;
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let _5: T;
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let mut _6: !;
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scope 1 {
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debug y => _5;
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}
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bb0: {
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StorageLive(_2);
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StorageLive(_3);
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_3 = _1;
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- _2 = Option::<T>::Some(move _3);
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+ _2 = Option::<T>::Some(_1);
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StorageDead(_3);
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- _4 = discriminant(_2);
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- switchInt(move _4) -> [0: bb2, 1: bb3, otherwise: bb1];
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+ _4 = const 1_isize;
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+ switchInt(const 1_isize) -> [0: bb2, 1: bb3, otherwise: bb1];
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}
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bb1: {
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unreachable;
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}
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bb2: {
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StorageLive(_6);
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_6 = begin_panic::<&str>(const "explicit panic") -> unwind continue;
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}
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bb3: {
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StorageLive(_5);
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- _5 = ((_2 as Some).0: T);
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- _0 = _5;
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+ _5 = _1;
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+ _0 = _1;
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StorageDead(_5);
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StorageDead(_2);
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return;
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}
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}
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