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61 lines
1.4 KiB
Diff
61 lines
1.4 KiB
Diff
- // MIR for `foo` before MatchBranchSimplification
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+ // MIR for `foo` after MatchBranchSimplification
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fn foo(_1: [u8; 16]) -> Option<[u8; 4]> {
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debug bytes => _1;
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let mut _0: std::option::Option<[u8; 4]>;
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let _2: [u32; 4];
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let mut _3: [u8; 16];
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let mut _5: [u8; 4];
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let mut _6: u32;
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scope 1 {
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debug dwords => _2;
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scope 2 {
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debug ip => _4;
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let _4: u32;
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}
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}
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bb0: {
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StorageLive(_2);
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StorageLive(_3);
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_3 = _1;
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_2 = move _3 as [u32; 4] (Transmute);
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StorageDead(_3);
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switchInt(_2[0 of 4]) -> [0: bb1, otherwise: bb4];
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}
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bb1: {
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switchInt(_2[1 of 4]) -> [0: bb2, otherwise: bb4];
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}
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bb2: {
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switchInt(_2[2 of 4]) -> [0: bb3, 4294901760: bb3, otherwise: bb4];
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}
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bb3: {
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StorageLive(_4);
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_4 = _2[3 of 4];
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StorageLive(_5);
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StorageLive(_6);
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_6 = _4;
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_5 = move _6 as [u8; 4] (Transmute);
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StorageDead(_6);
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_0 = Option::<[u8; 4]>::Some(move _5);
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StorageDead(_5);
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StorageDead(_4);
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goto -> bb5;
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}
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bb4: {
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_0 = Option::<[u8; 4]>::None;
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goto -> bb5;
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}
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bb5: {
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StorageDead(_2);
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return;
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}
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}
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