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- // MIR for `change_loop_body` before GVN
+ // MIR for `change_loop_body` after GVN
fn change_loop_body() -> () {
let mut _0: ();
let mut _1: i32;
let mut _2: ();
let mut _3: std::option::Option<u32>;
let mut _4: isize;
let mut _5: !;
let mut _6: !;
let _7: ();
let mut _8: !;
scope 1 {
debug _x => _1;
scope 2 {
}
}
bb0: {
StorageLive(_1);
_1 = const 0_i32;
StorageLive(_3);
- _3 = Option::<u32>::None;
- _4 = discriminant(_3);
- switchInt(move _4) -> [1: bb1, otherwise: bb3];
+ _3 = const Option::<u32>::None;
+ _4 = const 0_isize;
+ switchInt(const 0_isize) -> [1: bb1, otherwise: bb3];
}
bb1: {
- switchInt(copy ((_3 as Some).0: u32)) -> [0: bb2, otherwise: bb3];
+ switchInt(const Indirect { alloc_id: ALLOC0, offset: Size(4 bytes) }: u32) -> [0: bb2, otherwise: bb3];
}
bb2: {
_1 = const 1_i32;
_0 = const ();
goto -> bb4;
}
bb3: {
StorageLive(_7);
_0 = const ();
StorageDead(_7);
goto -> bb4;
}
bb4: {
StorageDead(_3);
StorageDead(_1);
return;
}
+ }
+
+ ALLOC0 (size: 8, align: 4) {
+ 00 00 00 00 __ __ __ __ │ ....░░░░
}
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