70 lines
1.7 KiB
Rust
70 lines
1.7 KiB
Rust
// MIR for `step_forward` after PreCodegen
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fn step_forward(_1: u32, _2: usize) -> u32 {
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debug x => _1;
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debug n => _2;
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let mut _0: u32;
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scope 1 (inlined <u32 as Step>::forward) {
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debug start => _1;
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debug n => _2;
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let _3: std::option::Option<u32>;
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let mut _4: &std::option::Option<u32>;
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let mut _7: bool;
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let mut _8: u32;
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scope 2 {
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}
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scope 3 (inlined Option::<u32>::is_none) {
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debug self => _4;
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let mut _6: bool;
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scope 4 (inlined Option::<u32>::is_some) {
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debug self => _4;
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let mut _5: isize;
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}
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}
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scope 5 (inlined core::num::<impl u32>::wrapping_add) {
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debug self => _1;
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debug rhs => _8;
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}
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}
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bb0: {
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StorageLive(_7);
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StorageLive(_4);
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StorageLive(_3);
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_3 = <u32 as Step>::forward_checked(_1, _2) -> [return: bb1, unwind continue];
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}
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bb1: {
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_4 = &_3;
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StorageLive(_6);
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StorageLive(_5);
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_5 = discriminant(_3);
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_6 = Eq(_5, const 1_isize);
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StorageDead(_5);
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_7 = Not(move _6);
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StorageDead(_6);
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switchInt(move _7) -> [0: bb2, otherwise: bb3];
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}
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bb2: {
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StorageDead(_3);
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StorageDead(_4);
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goto -> bb4;
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}
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bb3: {
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StorageDead(_3);
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StorageDead(_4);
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assert(!const true, "attempt to compute `{} + {}`, which would overflow", const _, const 1_u32) -> [success: bb4, unwind continue];
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}
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bb4: {
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StorageDead(_7);
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StorageLive(_8);
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_8 = _2 as u32 (IntToInt);
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_0 = Add(_1, _8);
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StorageDead(_8);
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return;
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}
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}
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