- // MIR for `opt3` before EarlyOtherwiseBranch + // MIR for `opt3` after EarlyOtherwiseBranch fn opt3(_1: Option, _2: Option) -> u32 { debug x => _1; debug y => _2; let mut _0: u32; let mut _3: (std::option::Option, std::option::Option); let mut _4: std::option::Option; let mut _5: std::option::Option; let mut _6: isize; let mut _7: isize; let _8: u32; let _9: bool; + let mut _10: isize; + let mut _11: bool; scope 1 { debug a => _8; debug b => _9; } bb0: { StorageLive(_3); StorageLive(_4); _4 = _1; StorageLive(_5); _5 = _2; _3 = (move _4, move _5); StorageDead(_5); StorageDead(_4); _7 = discriminant((_3.0: std::option::Option)); - switchInt(move _7) -> [1: bb2, otherwise: bb1]; + StorageLive(_10); + _10 = discriminant((_3.1: std::option::Option)); + StorageLive(_11); + _11 = Ne(_7, move _10); + StorageDead(_10); + switchInt(move _11) -> [0: bb4, otherwise: bb1]; } bb1: { + StorageDead(_11); _0 = const 1_u32; - goto -> bb4; + goto -> bb3; } bb2: { - _6 = discriminant((_3.1: std::option::Option)); - switchInt(move _6) -> [1: bb3, otherwise: bb1]; - } - - bb3: { StorageLive(_8); _8 = (((_3.0: std::option::Option) as Some).0: u32); StorageLive(_9); _9 = (((_3.1: std::option::Option) as Some).0: bool); _0 = const 0_u32; StorageDead(_9); StorageDead(_8); - goto -> bb4; + goto -> bb3; } - bb4: { + bb3: { StorageDead(_3); return; + } + + bb4: { + StorageDead(_11); + switchInt(_7) -> [1: bb2, otherwise: bb1]; } }