// MIR for `test` before ElaborateDrops fn test() -> Option> { let mut _0: std::option::Option>; // return place in scope 0 at $DIR/issue_62289.rs:+0:14: +0:30 let mut _1: std::boxed::Box; // in scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 let mut _2: usize; // in scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 let mut _3: usize; // in scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 let mut _4: *mut u8; // in scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 let mut _5: std::boxed::Box; // in scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 let mut _6: std::ops::ControlFlow, u32>; // in scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 let mut _7: std::option::Option; // in scope 0 at $DIR/issue_62289.rs:+3:18: +3:22 let mut _8: isize; // in scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 let _9: std::option::Option; // in scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 let mut _10: !; // in scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 let mut _11: std::option::Option; // in scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 let _12: u32; // in scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 scope 1 { } scope 2 { debug residual => _9; // in scope 2 at $DIR/issue_62289.rs:+3:22: +3:23 scope 3 { } } scope 4 { debug val => _12; // in scope 4 at $DIR/issue_62289.rs:+3:18: +3:23 scope 5 { } } bb0: { StorageLive(_1); // scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 _2 = SizeOf(u32); // scope 1 at $DIR/issue_62289.rs:+3:9: +3:24 _3 = AlignOf(u32); // scope 1 at $DIR/issue_62289.rs:+3:9: +3:24 _4 = alloc::alloc::exchange_malloc(move _2, move _3) -> bb1; // scope 1 at $DIR/issue_62289.rs:+3:9: +3:24 // mir::Constant // + span: $DIR/issue_62289.rs:11:9: 11:24 // + literal: Const { ty: unsafe fn(usize, usize) -> *mut u8 {alloc::alloc::exchange_malloc}, val: Value() } } bb1: { StorageLive(_5); // scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 _5 = ShallowInitBox(move _4, u32); // scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 StorageLive(_6); // scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 StorageLive(_7); // scope 0 at $DIR/issue_62289.rs:+3:18: +3:22 _7 = Option::::None; // scope 0 at $DIR/issue_62289.rs:+3:18: +3:22 _6 = as Try>::branch(move _7) -> [return: bb2, unwind: bb12]; // scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 // mir::Constant // + span: $DIR/issue_62289.rs:11:18: 11:23 // + literal: Const { ty: fn(Option) -> ControlFlow< as Try>::Residual, as Try>::Output> { as Try>::branch}, val: Value() } } bb2: { StorageDead(_7); // scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 _8 = discriminant(_6); // scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 switchInt(move _8) -> [0: bb3, 1: bb5, otherwise: bb4]; // scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 } bb3: { StorageLive(_12); // scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 _12 = ((_6 as Continue).0: u32); // scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 (*_5) = _12; // scope 5 at $DIR/issue_62289.rs:+3:18: +3:23 StorageDead(_12); // scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 _1 = move _5; // scope 0 at $DIR/issue_62289.rs:+3:9: +3:24 drop(_5) -> [return: bb7, unwind: bb11]; // scope 0 at $DIR/issue_62289.rs:+3:23: +3:24 } bb4: { unreachable; // scope 0 at $DIR/issue_62289.rs:+3:18: +3:23 } bb5: { StorageLive(_9); // scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 _9 = ((_6 as Break).0: std::option::Option); // scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 StorageLive(_11); // scope 3 at $DIR/issue_62289.rs:+3:22: +3:23 _11 = _9; // scope 3 at $DIR/issue_62289.rs:+3:22: +3:23 _0 = > as FromResidual>>::from_residual(move _11) -> [return: bb6, unwind: bb12]; // scope 3 at $DIR/issue_62289.rs:+3:18: +3:23 // mir::Constant // + span: $DIR/issue_62289.rs:11:22: 11:23 // + literal: Const { ty: fn(Option) -> Option> {> as FromResidual>>::from_residual}, val: Value() } } bb6: { StorageDead(_11); // scope 3 at $DIR/issue_62289.rs:+3:22: +3:23 StorageDead(_9); // scope 0 at $DIR/issue_62289.rs:+3:22: +3:23 drop(_5) -> bb9; // scope 0 at $DIR/issue_62289.rs:+3:23: +3:24 } bb7: { StorageDead(_5); // scope 0 at $DIR/issue_62289.rs:+3:23: +3:24 _0 = Option::>::Some(move _1); // scope 0 at $DIR/issue_62289.rs:+1:5: +4:6 drop(_1) -> bb8; // scope 0 at $DIR/issue_62289.rs:+4:5: +4:6 } bb8: { StorageDead(_1); // scope 0 at $DIR/issue_62289.rs:+4:5: +4:6 StorageDead(_6); // scope 0 at $DIR/issue_62289.rs:+5:1: +5:2 goto -> bb10; // scope 0 at $DIR/issue_62289.rs:+5:2: +5:2 } bb9: { StorageDead(_5); // scope 0 at $DIR/issue_62289.rs:+3:23: +3:24 StorageDead(_1); // scope 0 at $DIR/issue_62289.rs:+4:5: +4:6 StorageDead(_6); // scope 0 at $DIR/issue_62289.rs:+5:1: +5:2 goto -> bb10; // scope 0 at $DIR/issue_62289.rs:+5:2: +5:2 } bb10: { return; // scope 0 at $DIR/issue_62289.rs:+5:2: +5:2 } bb11 (cleanup): { drop(_1) -> bb13; // scope 0 at $DIR/issue_62289.rs:+4:5: +4:6 } bb12 (cleanup): { drop(_5) -> bb13; // scope 0 at $DIR/issue_62289.rs:+3:23: +3:24 } bb13 (cleanup): { resume; // scope 0 at $DIR/issue_62289.rs:+0:1: +5:2 } }