rust/tests/mir-opt/box_expr.main.ElaborateDrops.before.panic-unwind.mir
2023-06-23 18:36:25 +01:00

72 lines
1.4 KiB
Rust

// MIR for `main` before ElaborateDrops
fn main() -> () {
let mut _0: ();
let _1: std::boxed::Box<S>;
let mut _2: usize;
let mut _3: usize;
let mut _4: *mut u8;
let mut _5: std::boxed::Box<S>;
let _6: ();
let mut _7: std::boxed::Box<S>;
scope 1 {
debug x => _1;
}
scope 2 {
}
bb0: {
StorageLive(_1);
_2 = SizeOf(S);
_3 = AlignOf(S);
_4 = alloc::alloc::exchange_malloc(move _2, move _3) -> [return: bb1, unwind continue];
}
bb1: {
StorageLive(_5);
_5 = ShallowInitBox(move _4, S);
(*_5) = S::new() -> [return: bb2, unwind: bb8];
}
bb2: {
_1 = move _5;
drop(_5) -> [return: bb3, unwind continue];
}
bb3: {
StorageDead(_5);
StorageLive(_6);
StorageLive(_7);
_7 = move _1;
_6 = std::mem::drop::<Box<S>>(move _7) -> [return: bb4, unwind: bb6];
}
bb4: {
StorageDead(_7);
StorageDead(_6);
_0 = const ();
drop(_1) -> [return: bb5, unwind continue];
}
bb5: {
StorageDead(_1);
return;
}
bb6 (cleanup): {
drop(_7) -> [return: bb7, unwind terminate];
}
bb7 (cleanup): {
drop(_1) -> [return: bb9, unwind terminate];
}
bb8 (cleanup): {
drop(_5) -> [return: bb9, unwind terminate];
}
bb9 (cleanup): {
resume;
}
}