| // MIR for `range_loop` after PreCodegen |
| |
| fn range_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { |
| debug slice => _1; |
| debug f => _2; |
| let mut _0: (); |
| let mut _3: usize; |
| let mut _4: std::ops::Range<usize>; |
| let mut _5: std::ops::Range<usize>; |
| let mut _6: &mut std::ops::Range<usize>; |
| let mut _12: std::option::Option<usize>; |
| let mut _15: isize; |
| let mut _17: usize; |
| let mut _18: bool; |
| let mut _20: &impl Fn(usize, &T); |
| let mut _21: (usize, &T); |
| let _22: (); |
| scope 1 { |
| debug iter => _5; |
| let _16: usize; |
| scope 2 { |
| debug i => _16; |
| let _19: &T; |
| scope 3 { |
| debug x => _19; |
| } |
| } |
| scope 5 (inlined iter::range::<impl Iterator for std::ops::Range<usize>>::next) { |
| debug self => _6; |
| scope 6 (inlined <std::ops::Range<usize> as iter::range::RangeIteratorImpl>::spec_next) { |
| debug self => _6; |
| let mut _7: &usize; |
| let mut _8: &usize; |
| let mut _11: bool; |
| let _13: usize; |
| let mut _14: usize; |
| scope 7 { |
| debug old => _13; |
| scope 8 { |
| } |
| } |
| scope 9 (inlined cmp::impls::<impl PartialOrd for usize>::lt) { |
| debug self => _7; |
| debug other => _8; |
| let mut _9: usize; |
| let mut _10: usize; |
| } |
| } |
| } |
| } |
| scope 4 (inlined <std::ops::Range<usize> as IntoIterator>::into_iter) { |
| debug self => _4; |
| } |
| |
| bb0: { |
| StorageLive(_3); |
| _3 = Len((*_1)); |
| _4 = std::ops::Range::<usize> { start: const 0_usize, end: move _3 }; |
| StorageDead(_3); |
| StorageLive(_5); |
| _5 = move _4; |
| goto -> bb1; |
| } |
| |
| bb1: { |
| StorageLive(_12); |
| _6 = &mut _5; |
| StorageLive(_13); |
| StorageLive(_11); |
| StorageLive(_7); |
| _7 = &(_5.0: usize); |
| StorageLive(_8); |
| _8 = &(_5.1: usize); |
| StorageLive(_9); |
| _9 = (_5.0: usize); |
| StorageLive(_10); |
| _10 = (_5.1: usize); |
| _11 = Lt(move _9, move _10); |
| StorageDead(_10); |
| StorageDead(_9); |
| switchInt(move _11) -> [0: bb2, otherwise: bb3]; |
| } |
| |
| bb2: { |
| StorageDead(_8); |
| StorageDead(_7); |
| _12 = Option::<usize>::None; |
| goto -> bb5; |
| } |
| |
| bb3: { |
| StorageDead(_8); |
| StorageDead(_7); |
| _13 = (_5.0: usize); |
| StorageLive(_14); |
| _14 = <usize as Step>::forward_unchecked(_13, const 1_usize) -> [return: bb4, unwind unreachable]; |
| } |
| |
| bb4: { |
| (_5.0: usize) = move _14; |
| StorageDead(_14); |
| _12 = Option::<usize>::Some(_13); |
| goto -> bb5; |
| } |
| |
| bb5: { |
| StorageDead(_11); |
| StorageDead(_13); |
| _15 = discriminant(_12); |
| switchInt(move _15) -> [0: bb6, 1: bb8, otherwise: bb11]; |
| } |
| |
| bb6: { |
| StorageDead(_12); |
| StorageDead(_5); |
| drop(_2) -> [return: bb7, unwind unreachable]; |
| } |
| |
| bb7: { |
| return; |
| } |
| |
| bb8: { |
| _16 = ((_12 as Some).0: usize); |
| _17 = Len((*_1)); |
| _18 = Lt(_16, _17); |
| assert(move _18, "index out of bounds: the length is {} but the index is {}", move _17, _16) -> [success: bb9, unwind unreachable]; |
| } |
| |
| bb9: { |
| _19 = &(*_1)[_16]; |
| StorageLive(_20); |
| _20 = &_2; |
| StorageLive(_21); |
| _21 = (_16, _19); |
| _22 = <impl Fn(usize, &T) as Fn<(usize, &T)>>::call(move _20, move _21) -> [return: bb10, unwind unreachable]; |
| } |
| |
| bb10: { |
| StorageDead(_21); |
| StorageDead(_20); |
| StorageDead(_12); |
| goto -> bb1; |
| } |
| |
| bb11: { |
| unreachable; |
| } |
| } |