mirror of https://github.com/rust-lang/rust
87 lines
2.4 KiB
Rust
87 lines
2.4 KiB
Rust
// MIR for `main` after SimplifyCfg-initial
|
|
|
|
| User Type Annotations
|
|
| 0: user_ty: Canonical { value: Ty(std::option::Option<std::boxed::Box<u32>>), max_universe: U0, variables: [], defining_opaque_types: [] }, span: $DIR/basic_assignment.rs:38:17: 38:33, inferred_ty: std::option::Option<std::boxed::Box<u32>>
|
|
| 1: user_ty: Canonical { value: Ty(std::option::Option<std::boxed::Box<u32>>), max_universe: U0, variables: [], defining_opaque_types: [] }, span: $DIR/basic_assignment.rs:38:17: 38:33, inferred_ty: std::option::Option<std::boxed::Box<u32>>
|
|
|
|
|
fn main() -> () {
|
|
let mut _0: ();
|
|
let _1: bool;
|
|
let mut _3: bool;
|
|
let mut _6: std::option::Option<std::boxed::Box<u32>>;
|
|
scope 1 {
|
|
debug nodrop_x => _1;
|
|
let _2: bool;
|
|
scope 2 {
|
|
debug nodrop_y => _2;
|
|
let _4: std::option::Option<std::boxed::Box<u32>> as UserTypeProjection { base: UserType(0), projs: [] };
|
|
scope 3 {
|
|
debug drop_x => _4;
|
|
let _5: std::option::Option<std::boxed::Box<u32>>;
|
|
scope 4 {
|
|
debug drop_y => _5;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bb0: {
|
|
StorageLive(_1);
|
|
_1 = const false;
|
|
FakeRead(ForLet(None), _1);
|
|
StorageLive(_2);
|
|
StorageLive(_3);
|
|
_3 = _1;
|
|
_2 = move _3;
|
|
StorageDead(_3);
|
|
StorageLive(_4);
|
|
_4 = Option::<Box<u32>>::None;
|
|
FakeRead(ForLet(None), _4);
|
|
AscribeUserType(_4, o, UserTypeProjection { base: UserType(1), projs: [] });
|
|
StorageLive(_5);
|
|
StorageLive(_6);
|
|
_6 = move _4;
|
|
drop(_5) -> [return: bb1, unwind: bb2];
|
|
}
|
|
|
|
bb1: {
|
|
_5 = move _6;
|
|
drop(_6) -> [return: bb3, unwind: bb6];
|
|
}
|
|
|
|
bb2 (cleanup): {
|
|
_5 = move _6;
|
|
drop(_6) -> [return: bb6, unwind terminate(cleanup)];
|
|
}
|
|
|
|
bb3: {
|
|
StorageDead(_6);
|
|
_0 = const ();
|
|
drop(_5) -> [return: bb4, unwind: bb7];
|
|
}
|
|
|
|
bb4: {
|
|
StorageDead(_5);
|
|
drop(_4) -> [return: bb5, unwind: bb8];
|
|
}
|
|
|
|
bb5: {
|
|
StorageDead(_4);
|
|
StorageDead(_2);
|
|
StorageDead(_1);
|
|
return;
|
|
}
|
|
|
|
bb6 (cleanup): {
|
|
drop(_5) -> [return: bb7, unwind terminate(cleanup)];
|
|
}
|
|
|
|
bb7 (cleanup): {
|
|
drop(_4) -> [return: bb8, unwind terminate(cleanup)];
|
|
}
|
|
|
|
bb8 (cleanup): {
|
|
resume;
|
|
}
|
|
}
|