rust/tests/mir-opt/matches_u8.exhaustive_match.MatchBranchSimplification.diff

38 lines
743 B
Diff

- // MIR for `exhaustive_match` before MatchBranchSimplification
+ // MIR for `exhaustive_match` after MatchBranchSimplification
fn exhaustive_match(_1: E) -> u8 {
debug e => _1;
let mut _0: u8;
let mut _2: isize;
+ let mut _3: isize;
bb0: {
_2 = discriminant(_1);
- switchInt(move _2) -> [0: bb3, 1: bb2, otherwise: bb1];
- }
-
- bb1: {
- unreachable;
- }
-
- bb2: {
- _0 = const 1_u8;
- goto -> bb4;
- }
-
- bb3: {
- _0 = const 0_u8;
- goto -> bb4;
- }
-
- bb4: {
+ StorageLive(_3);
+ _3 = move _2;
+ _0 = _3 as u8 (IntToInt);
+ StorageDead(_3);
return;
}
}