mirror of https://github.com/rust-lang/rust
78 lines
1.9 KiB
Diff
78 lines
1.9 KiB
Diff
- // MIR for `array_bound` before GVN
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+ // MIR for `array_bound` after GVN
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fn array_bound(_1: usize, _2: &[u8; N]) -> u8 {
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debug index => _1;
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debug slice => _2;
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let mut _0: u8;
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let mut _3: bool;
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let mut _4: usize;
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let mut _5: usize;
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let mut _6: &[u8];
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let mut _7: &[u8; N];
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let _8: usize;
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let mut _9: usize;
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let mut _10: bool;
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bb0: {
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- StorageLive(_3);
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+ nop;
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StorageLive(_4);
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_4 = copy _1;
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- StorageLive(_5);
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+ nop;
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StorageLive(_6);
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StorageLive(_7);
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_7 = &(*_2);
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_6 = move _7 as &[u8] (PointerCoercion(Unsize));
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StorageDead(_7);
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- _5 = PtrMetadata(move _6);
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+ _5 = const N;
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goto -> bb1;
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}
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bb1: {
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StorageDead(_6);
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- _3 = Lt(move _4, move _5);
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- switchInt(move _3) -> [0: bb4, otherwise: bb2];
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+ _3 = Lt(copy _1, const N);
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+ switchInt(copy _3) -> [0: bb4, otherwise: bb2];
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}
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bb2: {
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- StorageDead(_5);
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+ nop;
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StorageDead(_4);
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StorageLive(_8);
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_8 = copy _1;
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- _9 = Len((*_2));
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- _10 = Lt(copy _8, copy _9);
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- assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, copy _8) -> [success: bb3, unwind continue];
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+ _9 = const N;
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+ _10 = copy _3;
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+ assert(copy _3, "index out of bounds: the length is {} but the index is {}", const N, copy _1) -> [success: bb3, unwind continue];
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}
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bb3: {
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- _0 = copy (*_2)[_8];
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+ _0 = copy (*_2)[_1];
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StorageDead(_8);
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goto -> bb5;
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}
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bb4: {
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- StorageDead(_5);
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+ nop;
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StorageDead(_4);
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_0 = const 42_u8;
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goto -> bb5;
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}
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bb5: {
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- StorageDead(_3);
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+ nop;
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return;
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}
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}
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