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