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- // MIR for `foo` before SimplifyLocals-final
+ // MIR for `foo` after SimplifyLocals-final
fn foo() -> () {
let mut _0: ();
let mut _1: (std::option::Option<u8>, std::option::Option<T>);
let mut _2: std::option::Option<u8>;
let mut _3: std::option::Option<T>;
let mut _4: isize;
let mut _5: isize;
scope 1 {
debug a => _6;
let _6: u8;
}
bb0: {
StorageLive(_1);
StorageLive(_2);
_2 = Option::<u8>::None;
StorageLive(_3);
_3 = Option::<T>::None;
_1 = (move _2, move _3);
StorageDead(_3);
StorageDead(_2);
_5 = discriminant((_1.0: std::option::Option<u8>));
switchInt(move _5) -> [1: bb1, 0: bb3, otherwise: bb5];
}
bb1: {
_4 = discriminant((_1.1: std::option::Option<T>));
switchInt(move _4) -> [0: bb2, 1: bb3, otherwise: bb5];
}
bb2: {
StorageLive(_6);
_6 = copy (((_1.0: std::option::Option<u8>) as Some).0: u8);
StorageDead(_6);
goto -> bb3;
}
bb3: {
drop(_1) -> [return: bb4, unwind unreachable];
}
bb4: {
StorageDead(_1);
return;
}
bb5: {
unreachable;
}
}
|
