| // MIR for `forward_loop` after PreCodegen |
| |
| fn forward_loop(_1: u32, _2: u32, _3: impl Fn(u32)) -> () { |
| debug start => _1; |
| debug end => _2; |
| debug f => _3; |
| let mut _0: (); |
| let mut _4: std::ops::Range<u32>; |
| let mut _5: std::ops::Range<u32>; |
| let mut _6: &mut std::ops::Range<u32>; |
| let mut _12: std::option::Option<u32>; |
| let mut _15: isize; |
| let mut _17: &impl Fn(u32); |
| let mut _18: (u32,); |
| let _19: (); |
| scope 1 { |
| debug iter => _5; |
| let _16: u32; |
| scope 2 { |
| debug x => _16; |
| } |
| scope 4 (inlined iter::range::<impl Iterator for std::ops::Range<u32>>::next) { |
| debug self => _6; |
| scope 5 (inlined <std::ops::Range<u32> as iter::range::RangeIteratorImpl>::spec_next) { |
| debug self => _6; |
| let mut _7: &u32; |
| let mut _8: &u32; |
| let mut _11: bool; |
| let _13: u32; |
| let mut _14: u32; |
| scope 6 { |
| debug old => _13; |
| scope 7 { |
| } |
| } |
| scope 8 (inlined std::cmp::impls::<impl PartialOrd for u32>::lt) { |
| debug self => _7; |
| debug other => _8; |
| let mut _9: u32; |
| let mut _10: u32; |
| } |
| } |
| } |
| } |
| scope 3 (inlined <std::ops::Range<u32> as IntoIterator>::into_iter) { |
| debug self => _4; |
| } |
| |
| bb0: { |
| _4 = std::ops::Range::<u32> { start: _1, end: _2 }; |
| StorageLive(_5); |
| _5 = _4; |
| goto -> bb1; |
| } |
| |
| bb1: { |
| StorageLive(_12); |
| _6 = &mut _5; |
| StorageLive(_13); |
| StorageLive(_11); |
| StorageLive(_7); |
| _7 = &(_5.0: u32); |
| StorageLive(_8); |
| _8 = &(_5.1: u32); |
| StorageLive(_9); |
| _9 = (_5.0: u32); |
| StorageLive(_10); |
| _10 = (_5.1: u32); |
| _11 = Lt(move _9, move _10); |
| StorageDead(_10); |
| StorageDead(_9); |
| switchInt(move _11) -> [0: bb2, otherwise: bb3]; |
| } |
| |
| bb2: { |
| StorageDead(_8); |
| StorageDead(_7); |
| _12 = const Option::<u32>::None; |
| goto -> bb5; |
| } |
| |
| bb3: { |
| StorageDead(_8); |
| StorageDead(_7); |
| _13 = (_5.0: u32); |
| StorageLive(_14); |
| _14 = <u32 as Step>::forward_unchecked(_13, const 1_usize) -> [return: bb4, unwind: bb11]; |
| } |
| |
| bb4: { |
| (_5.0: u32) = move _14; |
| StorageDead(_14); |
| _12 = Option::<u32>::Some(_13); |
| goto -> bb5; |
| } |
| |
| bb5: { |
| StorageDead(_11); |
| StorageDead(_13); |
| _15 = discriminant(_12); |
| switchInt(move _15) -> [0: bb6, 1: bb8, otherwise: bb10]; |
| } |
| |
| bb6: { |
| StorageDead(_12); |
| StorageDead(_5); |
| drop(_3) -> [return: bb7, unwind continue]; |
| } |
| |
| bb7: { |
| return; |
| } |
| |
| bb8: { |
| _16 = ((_12 as Some).0: u32); |
| StorageLive(_17); |
| _17 = &_3; |
| StorageLive(_18); |
| _18 = (_16,); |
| _19 = <impl Fn(u32) as Fn<(u32,)>>::call(move _17, move _18) -> [return: bb9, unwind: bb11]; |
| } |
| |
| bb9: { |
| StorageDead(_18); |
| StorageDead(_17); |
| StorageDead(_12); |
| goto -> bb1; |
| } |
| |
| bb10: { |
| unreachable; |
| } |
| |
| bb11 (cleanup): { |
| drop(_3) -> [return: bb12, unwind terminate(cleanup)]; |
| } |
| |
| bb12 (cleanup): { |
| resume; |
| } |
| } |
| |
| ALLOC0 (size: 8, align: 4) { |
| 00 00 00 00 __ __ __ __ │ ....░░░░ |
| } |