| // MIR for `slice_index_range` after PreCodegen |
| |
| fn slice_index_range(_1: &[u32], _2: std::ops::Range<usize>) -> &[u32] { |
| debug slice => _1; |
| debug index => _2; |
| let mut _0: &[u32]; |
| let mut _3: usize; |
| let mut _4: usize; |
| scope 1 (inlined #[track_caller] core::slice::index::<impl Index<std::ops::Range<usize>> for [u32]>::index) { |
| scope 2 (inlined #[track_caller] <std::ops::Range<usize> as SliceIndex<[u32]>>::index) { |
| let mut _7: usize; |
| let mut _8: bool; |
| let mut _9: *const [u32]; |
| let _12: *const [u32]; |
| let mut _13: usize; |
| let mut _14: !; |
| scope 3 (inlined core::num::<impl usize>::checked_sub) { |
| let mut _5: bool; |
| let mut _6: usize; |
| } |
| scope 4 (inlined core::slice::index::get_offset_len_noubcheck::<u32>) { |
| let _10: *const u32; |
| scope 5 { |
| let _11: *const u32; |
| scope 6 { |
| } |
| } |
| } |
| } |
| } |
| |
| bb0: { |
| _3 = move (_2.0: usize); |
| _4 = move (_2.1: usize); |
| StorageLive(_5); |
| _5 = Lt(copy _4, copy _3); |
| switchInt(move _5) -> [0: bb1, otherwise: bb4]; |
| } |
| |
| bb1: { |
| _6 = SubUnchecked(copy _4, copy _3); |
| StorageDead(_5); |
| StorageLive(_8); |
| StorageLive(_7); |
| _7 = PtrMetadata(copy _1); |
| _8 = Le(copy _4, move _7); |
| switchInt(move _8) -> [0: bb2, otherwise: bb3]; |
| } |
| |
| bb2: { |
| StorageDead(_7); |
| goto -> bb5; |
| } |
| |
| bb3: { |
| StorageDead(_7); |
| StorageLive(_12); |
| StorageLive(_9); |
| _9 = &raw const (*_1); |
| StorageLive(_10); |
| StorageLive(_11); |
| _10 = copy _9 as *const u32 (PtrToPtr); |
| _11 = Offset(copy _10, copy _3); |
| _12 = *const [u32] from (copy _11, copy _6); |
| StorageDead(_11); |
| StorageDead(_10); |
| StorageDead(_9); |
| _0 = &(*_12); |
| StorageDead(_12); |
| StorageDead(_8); |
| return; |
| } |
| |
| bb4: { |
| StorageDead(_5); |
| goto -> bb5; |
| } |
| |
| bb5: { |
| StorageLive(_13); |
| _13 = PtrMetadata(copy _1); |
| _14 = core::slice::index::slice_index_fail(move _3, move _4, move _13) -> unwind continue; |
| } |
| } |