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