rust/tests/mir-opt/lower_array_len.array_len.G...

27 lines
562 B
Diff

- // MIR for `array_len` before GVN
+ // MIR for `array_len` after GVN
fn array_len(_1: &[u8; N]) -> usize {
debug arr => _1;
let mut _0: usize;
let mut _2: &[u8];
let mut _3: &[u8; N];
bb0: {
StorageLive(_2);
StorageLive(_3);
_3 = &(*_1);
_2 = move _3 as &[u8] (PointerCoercion(Unsize));
StorageDead(_3);
- _0 = PtrMetadata(move _2);
+ _0 = const N;
goto -> bb1;
}
bb1: {
StorageDead(_2);
return;
}
}