rust/tests/mir-opt/uninhabited_fallthrough_eli...

39 lines
755 B
Diff

- // MIR for `keep_fallthrough` before UnreachableEnumBranching
+ // MIR for `keep_fallthrough` after UnreachableEnumBranching
fn keep_fallthrough(_1: S) -> u32 {
debug s => _1;
let mut _0: u32;
let mut _2: isize;
bb0: {
_2 = discriminant(_1);
- switchInt(move _2) -> [0: bb2, 1: bb3, otherwise: bb1];
+ switchInt(move _2) -> [0: bb5, 1: bb3, 2: bb1, otherwise: bb5];
}
bb1: {
_0 = const 3_u32;
goto -> bb4;
}
bb2: {
_0 = const 1_u32;
goto -> bb4;
}
bb3: {
_0 = const 2_u32;
goto -> bb4;
}
bb4: {
return;
+ }
+
+ bb5: {
+ unreachable;
}
}