mirror of https://github.com/rust-lang/rust
50 lines
1.1 KiB
Diff
50 lines
1.1 KiB
Diff
- // MIR for `wrap_unwrap` before GVN
|
|
+ // MIR for `wrap_unwrap` after GVN
|
|
|
|
fn wrap_unwrap(_1: T) -> T {
|
|
debug x => _1;
|
|
let mut _0: T;
|
|
let mut _2: std::option::Option<T>;
|
|
let mut _3: T;
|
|
let mut _4: isize;
|
|
let _5: T;
|
|
let mut _6: !;
|
|
scope 1 {
|
|
debug y => _5;
|
|
}
|
|
|
|
bb0: {
|
|
StorageLive(_2);
|
|
StorageLive(_3);
|
|
_3 = copy _1;
|
|
- _2 = Option::<T>::Some(move _3);
|
|
+ _2 = Option::<T>::Some(copy _1);
|
|
StorageDead(_3);
|
|
- _4 = discriminant(_2);
|
|
- switchInt(move _4) -> [0: bb2, 1: bb3, otherwise: bb1];
|
|
+ _4 = const 1_isize;
|
|
+ switchInt(const 1_isize) -> [0: bb2, 1: bb3, otherwise: bb1];
|
|
}
|
|
|
|
bb1: {
|
|
unreachable;
|
|
}
|
|
|
|
bb2: {
|
|
StorageLive(_6);
|
|
_6 = begin_panic::<&str>(const "explicit panic") -> unwind unreachable;
|
|
}
|
|
|
|
bb3: {
|
|
StorageLive(_5);
|
|
- _5 = copy ((_2 as Some).0: T);
|
|
- _0 = copy _5;
|
|
+ _5 = copy _1;
|
|
+ _0 = copy _1;
|
|
StorageDead(_5);
|
|
StorageDead(_2);
|
|
return;
|
|
}
|
|
}
|
|
|