mirror of https://github.com/rust-lang/rust
101 lines
2.6 KiB
Diff
101 lines
2.6 KiB
Diff
- // MIR for `identity` before JumpThreading
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+ // MIR for `identity` after JumpThreading
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fn identity(_1: Result<i32, i32>) -> Result<i32, i32> {
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debug x => _1;
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let mut _0: std::result::Result<i32, i32>;
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let mut _2: std::ops::ControlFlow<std::result::Result<std::convert::Infallible, i32>, i32>;
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let mut _3: isize;
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let _4: std::result::Result<std::convert::Infallible, i32>;
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let _5: i32;
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scope 1 {
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debug residual => _4;
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scope 2 {
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scope 8 (inlined #[track_caller] <Result<i32, i32> as FromResidual<Result<Infallible, i32>>>::from_residual) {
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let _10: i32;
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scope 9 {
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scope 10 (inlined <i32 as From<i32>>::from) {
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}
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}
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}
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}
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}
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scope 3 {
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debug val => _5;
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scope 4 {
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}
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}
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scope 5 (inlined <Result<i32, i32> as Try>::branch) {
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let mut _6: isize;
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let _7: i32;
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let _8: i32;
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let mut _9: std::result::Result<std::convert::Infallible, i32>;
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scope 6 {
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}
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scope 7 {
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}
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}
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bb0: {
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StorageLive(_2);
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StorageLive(_6);
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StorageLive(_7);
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StorageLive(_8);
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_6 = discriminant(_1);
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switchInt(move _6) -> [0: bb6, 1: bb5, 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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_5 = ((_2 as Continue).0: i32);
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_0 = Result::<i32, i32>::Ok(_5);
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StorageDead(_2);
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return;
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}
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bb3: {
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_4 = ((_2 as Break).0: std::result::Result<std::convert::Infallible, i32>);
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_10 = ((_4 as Err).0: i32);
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_0 = Result::<i32, i32>::Err(_10);
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StorageDead(_2);
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return;
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}
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bb4: {
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StorageDead(_8);
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StorageDead(_7);
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StorageDead(_6);
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_3 = discriminant(_2);
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- switchInt(move _3) -> [0: bb2, 1: bb3, otherwise: bb1];
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+ goto -> bb2;
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}
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bb5: {
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_8 = ((_1 as Err).0: i32);
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StorageLive(_9);
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_9 = Result::<Infallible, i32>::Err(_8);
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_2 = ControlFlow::<Result<Infallible, i32>, i32>::Break(move _9);
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StorageDead(_9);
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- goto -> bb4;
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+ goto -> bb7;
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}
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bb6: {
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_7 = ((_1 as Ok).0: i32);
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_2 = ControlFlow::<Result<Infallible, i32>, i32>::Continue(_7);
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goto -> bb4;
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+ }
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+
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+ bb7: {
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+ StorageDead(_8);
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+ StorageDead(_7);
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+ StorageDead(_6);
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+ _3 = discriminant(_2);
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+ goto -> bb3;
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}
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}
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