rust/tests/mir-opt/building/match/never_patterns.opt3.Simplif...

31 lines
599 B
Rust

// MIR for `opt3` after SimplifyCfg-initial
fn opt3(_1: &Result<u32, Void>) -> &u32 {
debug res => _1;
let mut _0: &u32;
let mut _2: isize;
let _3: &u32;
scope 1 {
debug x => _3;
}
bb0: {
PlaceMention(_1);
_2 = discriminant((*_1));
switchInt(move _2) -> [1: bb2, otherwise: bb1];
}
bb1: {
StorageLive(_3);
_3 = &(((*_1) as Ok).0: u32);
_0 = &(*_3);
StorageDead(_3);
return;
}
bb2: {
FakeRead(ForMatchedPlace(None), (((*_1) as Err).0: Void));
unreachable;
}
}