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|
- // MIR for `identity` before JumpThreading
+ // MIR for `identity` after JumpThreading
fn identity(_1: Result<i32, i32>) -> Result<i32, i32> {
debug x => _1;
let mut _0: std::result::Result<i32, i32>;
let mut _2: i32;
let mut _3: std::ops::ControlFlow<std::result::Result<std::convert::Infallible, i32>, i32>;
let mut _4: std::result::Result<i32, i32>;
let mut _5: isize;
let _6: std::result::Result<std::convert::Infallible, i32>;
let mut _7: !;
let mut _8: std::result::Result<std::convert::Infallible, i32>;
let _9: i32;
scope 1 {
debug residual => _6;
scope 2 {
scope 8 (inlined #[track_caller] <Result<i32, i32> as FromResidual<Result<Infallible, i32>>>::from_residual) {
debug residual => _8;
let _14: i32;
let mut _15: i32;
scope 9 {
debug e => _14;
scope 10 (inlined <i32 as From<i32>>::from) {
debug t => _14;
}
}
}
}
}
scope 3 {
debug val => _9;
scope 4 {
}
}
scope 5 (inlined <Result<i32, i32> as Try>::branch) {
debug self => _4;
let mut _10: isize;
let _11: i32;
let _12: i32;
let mut _13: std::result::Result<std::convert::Infallible, i32>;
scope 6 {
debug v => _11;
}
scope 7 {
debug e => _12;
}
}
bb0: {
StorageLive(_2);
StorageLive(_3);
StorageLive(_4);
_4 = _1;
StorageLive(_10);
StorageLive(_11);
StorageLive(_12);
_10 = discriminant(_4);
switchInt(move _10) -> [0: bb8, 1: bb6, otherwise: bb7];
}
bb1: {
StorageDead(_12);
StorageDead(_11);
StorageDead(_10);
StorageDead(_4);
_5 = discriminant(_3);
- switchInt(move _5) -> [0: bb2, 1: bb4, otherwise: bb3];
+ goto -> bb2;
}
bb2: {
StorageLive(_9);
_9 = ((_3 as Continue).0: i32);
_2 = _9;
StorageDead(_9);
_0 = Result::<i32, i32>::Ok(move _2);
StorageDead(_2);
StorageDead(_3);
goto -> bb5;
}
bb3: {
unreachable;
}
bb4: {
StorageLive(_6);
_6 = ((_3 as Break).0: std::result::Result<std::convert::Infallible, i32>);
StorageLive(_8);
_8 = _6;
StorageLive(_14);
_14 = move ((_8 as Err).0: i32);
StorageLive(_15);
_15 = move _14;
_0 = Result::<i32, i32>::Err(move _15);
StorageDead(_15);
StorageDead(_14);
StorageDead(_8);
StorageDead(_6);
StorageDead(_2);
StorageDead(_3);
goto -> bb5;
}
bb5: {
return;
}
bb6: {
_12 = move ((_4 as Err).0: i32);
StorageLive(_13);
_13 = Result::<Infallible, i32>::Err(move _12);
_3 = ControlFlow::<Result<Infallible, i32>, i32>::Break(move _13);
StorageDead(_13);
- goto -> bb1;
+ goto -> bb9;
}
bb7: {
unreachable;
}
bb8: {
_11 = move ((_4 as Ok).0: i32);
_3 = ControlFlow::<Result<Infallible, i32>, i32>::Continue(move _11);
goto -> bb1;
+ }
+
+ bb9: {
+ StorageDead(_12);
+ StorageDead(_11);
+ StorageDead(_10);
+ StorageDead(_4);
+ _5 = discriminant(_3);
+ goto -> bb4;
}
}
|
