rust/tests/mir-opt/unreachable_diverging.main....

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1.5 KiB
Diff

- // MIR for `main` before UnreachablePropagation
+ // MIR for `main` after UnreachablePropagation
fn main() -> () {
let mut _0: ();
let _1: bool;
let mut _2: std::option::Option<Empty>;
let mut _3: isize;
let _5: ();
let mut _6: bool;
let mut _7: !;
+ let mut _8: bool;
scope 1 {
debug x => _1;
scope 2 {
debug bomb => _4;
let _4: Empty;
}
}
bb0: {
StorageLive(_1);
_1 = const true;
StorageLive(_2);
_2 = empty() -> [return: bb1, unwind continue];
}
bb1: {
_3 = discriminant(_2);
switchInt(move _3) -> [1: bb2, otherwise: bb6];
}
bb2: {
StorageLive(_4);
_4 = move ((_2 as Some).0: Empty);
StorageLive(_5);
StorageLive(_6);
_6 = copy _1;
- switchInt(move _6) -> [0: bb4, otherwise: bb3];
+ _8 = Ne(copy _6, const false);
+ assume(move _8);
+ goto -> bb3;
}
bb3: {
_5 = loop_forever() -> [return: bb5, unwind continue];
}
bb4: {
- _5 = const ();
- goto -> bb5;
+ unreachable;
}
bb5: {
- StorageDead(_6);
- StorageDead(_5);
- StorageLive(_7);
unreachable;
}
bb6: {
_0 = const ();
StorageDead(_1);
StorageDead(_2);
return;
}
}