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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: std::ops::ControlFlow<std::result::Result<std::convert::Infallible, i32>, i32>;
let mut _3: isize;
let _4: std::result::Result<std::convert::Infallible, i32>;
let _5: i32;
scope 1 {
debug residual => _4;
scope 2 {
scope 8 (inlined #[track_caller] <Result<i32, i32> as FromResidual<Result<Infallible, i32>>>::from_residual) {
let _10: i32;
scope 9 {
scope 10 (inlined <i32 as From<i32>>::from) {
}
}
}
}
}
scope 3 {
debug val => _5;
scope 4 {
}
}
scope 5 (inlined <Result<i32, i32> as Try>::branch) {
let mut _6: isize;
let _7: i32;
let _8: i32;
let mut _9: std::result::Result<std::convert::Infallible, i32>;
scope 6 {
}
scope 7 {
}
}
bb0: {
StorageLive(_2);
StorageLive(_6);
StorageLive(_7);
StorageLive(_8);
_6 = discriminant(_1);
switchInt(move _6) -> [0: bb6, 1: bb5, otherwise: bb1];
}
bb1: {
unreachable;
}
bb2: {
_5 = copy ((_2 as Continue).0: i32);
_0 = Result::<i32, i32>::Ok(copy _5);
StorageDead(_2);
return;
}
bb3: {
_4 = copy ((_2 as Break).0: std::result::Result<std::convert::Infallible, i32>);
_10 = copy ((_4 as Err).0: i32);
_0 = Result::<i32, i32>::Err(copy _10);
StorageDead(_2);
return;
}
bb4: {
StorageDead(_8);
StorageDead(_7);
StorageDead(_6);
_3 = discriminant(_2);
- switchInt(move _3) -> [0: bb2, 1: bb3, otherwise: bb1];
+ goto -> bb2;
}
bb5: {
_8 = copy ((_1 as Err).0: i32);
StorageLive(_9);
_9 = Result::<Infallible, i32>::Err(copy _8);
_2 = ControlFlow::<Result<Infallible, i32>, i32>::Break(move _9);
StorageDead(_9);
- goto -> bb4;
+ goto -> bb7;
}
bb6: {
_7 = copy ((_1 as Ok).0: i32);
_2 = ControlFlow::<Result<Infallible, i32>, i32>::Continue(copy _7);
goto -> bb4;
+ }
+
+ bb7: {
+ StorageDead(_8);
+ StorageDead(_7);
+ StorageDead(_6);
+ _3 = discriminant(_2);
+ goto -> bb3;
}
}
|
