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// MIR for `range_iter_next` after PreCodegen
fn range_iter_next(_1: &mut std::ops::Range<u32>) -> Option<u32> {
debug it => _1;
let mut _0: std::option::Option<u32>;
scope 1 (inlined iter::range::<impl Iterator for std::ops::Range<u32>>::next) {
scope 2 (inlined <std::ops::Range<u32> as iter::range::RangeIteratorImpl>::spec_next) {
let mut _4: bool;
let _5: u32;
let mut _6: u32;
scope 3 {
scope 5 (inlined <u32 as Step>::forward_unchecked) {
scope 6 (inlined #[track_caller] core::num::<impl u32>::unchecked_add) {
scope 7 (inlined core::ub_checks::check_language_ub) {
scope 8 (inlined core::ub_checks::check_language_ub::runtime) {
}
}
}
}
}
scope 4 (inlined std::cmp::impls::<impl PartialOrd for u32>::lt) {
let mut _2: u32;
let mut _3: u32;
}
}
}
bb0: {
StorageLive(_4);
StorageLive(_2);
_2 = copy ((*_1).0: u32);
StorageLive(_3);
_3 = copy ((*_1).1: u32);
_4 = Lt(move _2, move _3);
StorageDead(_3);
StorageDead(_2);
switchInt(move _4) -> [0: bb1, otherwise: bb2];
}
bb1: {
_0 = const Option::<u32>::None;
goto -> bb3;
}
bb2: {
_5 = copy ((*_1).0: u32);
StorageLive(_6);
_6 = AddUnchecked(copy _5, const 1_u32);
((*_1).0: u32) = move _6;
StorageDead(_6);
_0 = Option::<u32>::Some(copy _5);
goto -> bb3;
}
bb3: {
StorageDead(_4);
return;
}
}
ALLOC0 (size: 8, align: 4) {
00 00 00 00 __ __ __ __ │ ....░░░░
}
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