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|
- // MIR for `main` before GVN
+ // MIR for `main` after GVN
fn main() -> () {
let mut _0: ();
let _1: i32;
let mut _2: i32;
let mut _3: std::option::Option<bool>;
let mut _4: isize;
scope 1 {
debug x => _1;
}
scope 2 {
}
bb0: {
StorageLive(_1);
StorageLive(_2);
StorageLive(_3);
- _3 = Option::<bool>::Some(const true);
- _4 = discriminant(_3);
- switchInt(move _4) -> [1: bb1, otherwise: bb3];
+ _3 = const Option::<bool>::Some(true);
+ _4 = const 1_isize;
+ switchInt(const 1_isize) -> [1: bb1, otherwise: bb3];
}
bb1: {
- switchInt(((_3 as Some).0: bool)) -> [0: bb3, otherwise: bb2];
+ switchInt(const true) -> [0: bb3, otherwise: bb2];
}
bb2: {
_2 = const 42_i32;
goto -> bb4;
}
bb3: {
_2 = const 10_i32;
goto -> bb4;
}
bb4: {
_1 = Add(move _2, const 0_i32);
StorageDead(_2);
StorageDead(_3);
_0 = const ();
StorageDead(_1);
return;
}
}
|
