rust/tests/mir-opt/jump_threading.multiple_mat...

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Diff

- // MIR for `multiple_match` before JumpThreading
+ // MIR for `multiple_match` after JumpThreading
fn multiple_match(_1: u8) -> u8 {
let mut _0: u8;
let mut _2: u8;
let mut _3: u8;
bb0: {
switchInt(copy _1) -> [3: bb1, otherwise: bb2];
}
bb1: {
_2 = copy _1;
- switchInt(copy _2) -> [3: bb3, otherwise: bb4];
+ goto -> bb3;
}
bb2: {
_3 = copy _1;
- switchInt(copy _3) -> [3: bb5, otherwise: bb6];
+ goto -> bb6;
}
bb3: {
_0 = const 5_u8;
return;
}
bb4: {
_0 = const 7_u8;
return;
}
bb5: {
_0 = const 9_u8;
return;
}
bb6: {
switchInt(copy _3) -> [1: bb7, otherwise: bb8];
}
bb7: {
_0 = const 9_u8;
return;
}
bb8: {
_0 = const 11_u8;
return;
}
}