mirror of https://github.com/rust-lang/rust.git
70 lines
1.5 KiB
Diff
70 lines
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 unreachable];
|
|
}
|
|
|
|
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 unreachable];
|
|
}
|
|
|
|
bb4: {
|
|
- _5 = const ();
|
|
- goto -> bb5;
|
|
+ unreachable;
|
|
}
|
|
|
|
bb5: {
|
|
- StorageDead(_6);
|
|
- StorageDead(_5);
|
|
- StorageLive(_7);
|
|
unreachable;
|
|
}
|
|
|
|
bb6: {
|
|
_0 = const ();
|
|
StorageDead(_1);
|
|
StorageDead(_2);
|
|
return;
|
|
}
|
|
}
|
|
|