mirror of https://github.com/rust-lang/rust
44 lines
1.1 KiB
Diff
44 lines
1.1 KiB
Diff
- // MIR for `nrvo` before DestinationPropagation
|
|
+ // MIR for `nrvo` after DestinationPropagation
|
|
|
|
fn nrvo(_1: for<'a> fn(&'a mut [u8; 1024])) -> [u8; 1024] {
|
|
debug init => _1;
|
|
let mut _0: [u8; 1024];
|
|
let mut _2: [u8; 1024];
|
|
let _3: ();
|
|
let mut _4: for<'a> fn(&'a mut [u8; 1024]);
|
|
let mut _5: &mut [u8; 1024];
|
|
let mut _6: &mut [u8; 1024];
|
|
scope 1 {
|
|
debug buf => _2;
|
|
}
|
|
|
|
bb0: {
|
|
StorageLive(_2);
|
|
_2 = [const 0_u8; 1024];
|
|
StorageLive(_3);
|
|
- StorageLive(_4);
|
|
- _4 = copy _1;
|
|
+ nop;
|
|
+ nop;
|
|
StorageLive(_5);
|
|
StorageLive(_6);
|
|
_6 = &mut _2;
|
|
_5 = &mut (*_6);
|
|
- _3 = move _4(move _5) -> [return: bb1, unwind continue];
|
|
+ _3 = move _1(move _5) -> [return: bb1, unwind continue];
|
|
}
|
|
|
|
bb1: {
|
|
StorageDead(_5);
|
|
- StorageDead(_4);
|
|
+ nop;
|
|
StorageDead(_6);
|
|
StorageDead(_3);
|
|
_0 = copy _2;
|
|
StorageDead(_2);
|
|
return;
|
|
}
|
|
}
|
|
|