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|
- // 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;
}
}
|
