- // MIR for `arithmetic` before GVN + // MIR for `arithmetic` after GVN fn arithmetic(_1: u64) -> () { debug x => _1; let mut _0: (); let _2: (); let mut _3: u64; let mut _4: u64; let _5: (); let mut _6: u64; let mut _7: u64; let _8: (); let mut _9: u64; let mut _10: u64; let mut _11: u64; let _12: (); let mut _13: u64; let mut _14: u64; let _15: (); let mut _16: u64; let mut _17: u64; let _18: (); let mut _19: u64; let mut _20: u64; let mut _21: bool; let _22: (); let mut _23: u64; let mut _24: u64; let mut _25: bool; let _26: (); let mut _27: u64; let mut _28: u64; let mut _29: bool; let _30: (); let mut _31: u64; let mut _32: u64; let mut _33: bool; let _34: (); let mut _35: u64; let mut _36: u64; let mut _37: bool; let _38: (); let mut _39: u64; let mut _40: u64; let mut _41: bool; let _42: (); let mut _43: u64; let mut _44: u64; let mut _45: bool; let _46: (); let mut _47: u64; let mut _48: u64; let mut _49: bool; let _50: (); let mut _51: u64; let mut _52: u64; let _53: (); let mut _54: u64; let mut _55: u64; let _56: (); let mut _57: u64; let mut _58: u64; let _59: (); let mut _60: u64; let mut _61: u64; let _62: (); let mut _63: u64; let mut _64: u64; let _65: (); let mut _66: u64; let mut _67: u64; let mut _68: u64; let _69: (); let mut _70: u64; let mut _71: u64; let _72: (); let mut _73: u64; let mut _74: u64; bb0: { StorageLive(_2); StorageLive(_3); StorageLive(_4); _4 = _1; - _3 = Add(move _4, const 0_u64); + _3 = _1; StorageDead(_4); - _2 = opaque::(move _3) -> [return: bb1, unwind unreachable]; + _2 = opaque::(_1) -> [return: bb1, unwind unreachable]; } bb1: { StorageDead(_3); StorageDead(_2); StorageLive(_5); StorageLive(_6); StorageLive(_7); _7 = _1; - _6 = Sub(move _7, const 0_u64); + _6 = _1; StorageDead(_7); - _5 = opaque::(move _6) -> [return: bb2, unwind unreachable]; + _5 = opaque::(_1) -> [return: bb2, unwind unreachable]; } bb2: { StorageDead(_6); StorageDead(_5); StorageLive(_8); - StorageLive(_9); + nop; StorageLive(_10); _10 = _1; StorageLive(_11); _11 = _1; - _9 = Sub(move _10, move _11); + _9 = const 0_u64; StorageDead(_11); StorageDead(_10); - _8 = opaque::(move _9) -> [return: bb3, unwind unreachable]; + _8 = opaque::(const 0_u64) -> [return: bb3, unwind unreachable]; } bb3: { - StorageDead(_9); + nop; StorageDead(_8); StorageLive(_12); StorageLive(_13); StorageLive(_14); _14 = _1; - _13 = Mul(move _14, const 0_u64); + _13 = const 0_u64; StorageDead(_14); - _12 = opaque::(move _13) -> [return: bb4, unwind unreachable]; + _12 = opaque::(const 0_u64) -> [return: bb4, unwind unreachable]; } bb4: { StorageDead(_13); StorageDead(_12); StorageLive(_15); StorageLive(_16); StorageLive(_17); _17 = _1; - _16 = Mul(move _17, const 1_u64); + _16 = _1; StorageDead(_17); - _15 = opaque::(move _16) -> [return: bb5, unwind unreachable]; + _15 = opaque::(_1) -> [return: bb5, unwind unreachable]; } bb5: { StorageDead(_16); StorageDead(_15); StorageLive(_18); StorageLive(_19); StorageLive(_20); _20 = _1; - _21 = Eq(const 0_u64, const 0_u64); - assert(!move _21, "attempt to divide `{}` by zero", _20) -> [success: bb6, unwind unreachable]; + _21 = const true; + assert(!const true, "attempt to divide `{}` by zero", _1) -> [success: bb6, unwind unreachable]; } bb6: { - _19 = Div(move _20, const 0_u64); + _19 = Div(_1, const 0_u64); StorageDead(_20); _18 = opaque::(move _19) -> [return: bb7, unwind unreachable]; } bb7: { StorageDead(_19); StorageDead(_18); StorageLive(_22); StorageLive(_23); StorageLive(_24); _24 = _1; - _25 = Eq(const 1_u64, const 0_u64); - assert(!move _25, "attempt to divide `{}` by zero", _24) -> [success: bb8, unwind unreachable]; + _25 = const false; + assert(!const false, "attempt to divide `{}` by zero", _1) -> [success: bb8, unwind unreachable]; } bb8: { - _23 = Div(move _24, const 1_u64); + _23 = _1; StorageDead(_24); - _22 = opaque::(move _23) -> [return: bb9, unwind unreachable]; + _22 = opaque::(_1) -> [return: bb9, unwind unreachable]; } bb9: { StorageDead(_23); StorageDead(_22); StorageLive(_26); StorageLive(_27); StorageLive(_28); _28 = _1; - _29 = Eq(_28, const 0_u64); - assert(!move _29, "attempt to divide `{}` by zero", const 0_u64) -> [success: bb10, unwind unreachable]; + _29 = Eq(_1, const 0_u64); + assert(!_29, "attempt to divide `{}` by zero", const 0_u64) -> [success: bb10, unwind unreachable]; } bb10: { - _27 = Div(const 0_u64, move _28); + _27 = const 0_u64; StorageDead(_28); - _26 = opaque::(move _27) -> [return: bb11, unwind unreachable]; + _26 = opaque::(const 0_u64) -> [return: bb11, unwind unreachable]; } bb11: { StorageDead(_27); StorageDead(_26); StorageLive(_30); StorageLive(_31); StorageLive(_32); _32 = _1; - _33 = Eq(_32, const 0_u64); - assert(!move _33, "attempt to divide `{}` by zero", const 1_u64) -> [success: bb12, unwind unreachable]; + _33 = _29; + assert(!_29, "attempt to divide `{}` by zero", const 1_u64) -> [success: bb12, unwind unreachable]; } bb12: { - _31 = Div(const 1_u64, move _32); + _31 = Div(const 1_u64, _1); StorageDead(_32); _30 = opaque::(move _31) -> [return: bb13, unwind unreachable]; } bb13: { StorageDead(_31); StorageDead(_30); StorageLive(_34); StorageLive(_35); StorageLive(_36); _36 = _1; - _37 = Eq(const 0_u64, const 0_u64); - assert(!move _37, "attempt to calculate the remainder of `{}` with a divisor of zero", _36) -> [success: bb14, unwind unreachable]; + _37 = const true; + assert(!const true, "attempt to calculate the remainder of `{}` with a divisor of zero", _1) -> [success: bb14, unwind unreachable]; } bb14: { - _35 = Rem(move _36, const 0_u64); + _35 = Rem(_1, const 0_u64); StorageDead(_36); _34 = opaque::(move _35) -> [return: bb15, unwind unreachable]; } bb15: { StorageDead(_35); StorageDead(_34); StorageLive(_38); StorageLive(_39); StorageLive(_40); _40 = _1; - _41 = Eq(const 1_u64, const 0_u64); - assert(!move _41, "attempt to calculate the remainder of `{}` with a divisor of zero", _40) -> [success: bb16, unwind unreachable]; + _41 = const false; + assert(!const false, "attempt to calculate the remainder of `{}` with a divisor of zero", _1) -> [success: bb16, unwind unreachable]; } bb16: { - _39 = Rem(move _40, const 1_u64); + _39 = const 0_u64; StorageDead(_40); - _38 = opaque::(move _39) -> [return: bb17, unwind unreachable]; + _38 = opaque::(const 0_u64) -> [return: bb17, unwind unreachable]; } bb17: { StorageDead(_39); StorageDead(_38); StorageLive(_42); StorageLive(_43); StorageLive(_44); _44 = _1; - _45 = Eq(_44, const 0_u64); - assert(!move _45, "attempt to calculate the remainder of `{}` with a divisor of zero", const 0_u64) -> [success: bb18, unwind unreachable]; + _45 = _29; + assert(!_29, "attempt to calculate the remainder of `{}` with a divisor of zero", const 0_u64) -> [success: bb18, unwind unreachable]; } bb18: { - _43 = Rem(const 0_u64, move _44); + _43 = const 0_u64; StorageDead(_44); - _42 = opaque::(move _43) -> [return: bb19, unwind unreachable]; + _42 = opaque::(const 0_u64) -> [return: bb19, unwind unreachable]; } bb19: { StorageDead(_43); StorageDead(_42); StorageLive(_46); StorageLive(_47); StorageLive(_48); _48 = _1; - _49 = Eq(_48, const 0_u64); - assert(!move _49, "attempt to calculate the remainder of `{}` with a divisor of zero", const 1_u64) -> [success: bb20, unwind unreachable]; + _49 = _29; + assert(!_29, "attempt to calculate the remainder of `{}` with a divisor of zero", const 1_u64) -> [success: bb20, unwind unreachable]; } bb20: { - _47 = Rem(const 1_u64, move _48); + _47 = Rem(const 1_u64, _1); StorageDead(_48); _46 = opaque::(move _47) -> [return: bb21, unwind unreachable]; } bb21: { StorageDead(_47); StorageDead(_46); StorageLive(_50); StorageLive(_51); StorageLive(_52); _52 = _1; - _51 = BitAnd(move _52, const 0_u64); + _51 = const 0_u64; StorageDead(_52); - _50 = opaque::(move _51) -> [return: bb22, unwind unreachable]; + _50 = opaque::(const 0_u64) -> [return: bb22, unwind unreachable]; } bb22: { StorageDead(_51); StorageDead(_50); StorageLive(_53); StorageLive(_54); StorageLive(_55); _55 = _1; - _54 = BitAnd(move _55, const core::num::::MAX); + _54 = _1; StorageDead(_55); - _53 = opaque::(move _54) -> [return: bb23, unwind unreachable]; + _53 = opaque::(_1) -> [return: bb23, unwind unreachable]; } bb23: { StorageDead(_54); StorageDead(_53); StorageLive(_56); StorageLive(_57); StorageLive(_58); _58 = _1; - _57 = BitOr(move _58, const 0_u64); + _57 = _1; StorageDead(_58); - _56 = opaque::(move _57) -> [return: bb24, unwind unreachable]; + _56 = opaque::(_1) -> [return: bb24, unwind unreachable]; } bb24: { StorageDead(_57); StorageDead(_56); StorageLive(_59); StorageLive(_60); StorageLive(_61); _61 = _1; - _60 = BitOr(move _61, const core::num::::MAX); + _60 = const u64::MAX; StorageDead(_61); - _59 = opaque::(move _60) -> [return: bb25, unwind unreachable]; + _59 = opaque::(const u64::MAX) -> [return: bb25, unwind unreachable]; } bb25: { StorageDead(_60); StorageDead(_59); StorageLive(_62); StorageLive(_63); StorageLive(_64); _64 = _1; - _63 = BitXor(move _64, const 0_u64); + _63 = _1; StorageDead(_64); - _62 = opaque::(move _63) -> [return: bb26, unwind unreachable]; + _62 = opaque::(_1) -> [return: bb26, unwind unreachable]; } bb26: { StorageDead(_63); StorageDead(_62); StorageLive(_65); StorageLive(_66); StorageLive(_67); _67 = _1; StorageLive(_68); _68 = _1; - _66 = BitXor(move _67, move _68); + _66 = const 0_u64; StorageDead(_68); StorageDead(_67); - _65 = opaque::(move _66) -> [return: bb27, unwind unreachable]; + _65 = opaque::(const 0_u64) -> [return: bb27, unwind unreachable]; } bb27: { StorageDead(_66); StorageDead(_65); StorageLive(_69); StorageLive(_70); StorageLive(_71); _71 = _1; - _70 = Shr(move _71, const 0_i32); + _70 = _1; StorageDead(_71); - _69 = opaque::(move _70) -> [return: bb28, unwind unreachable]; + _69 = opaque::(_1) -> [return: bb28, unwind unreachable]; } bb28: { StorageDead(_70); StorageDead(_69); StorageLive(_72); StorageLive(_73); StorageLive(_74); _74 = _1; - _73 = Shl(move _74, const 0_i32); + _73 = _1; StorageDead(_74); - _72 = opaque::(move _73) -> [return: bb29, unwind unreachable]; + _72 = opaque::(_1) -> [return: bb29, unwind unreachable]; } bb29: { StorageDead(_73); StorageDead(_72); _0 = const (); return; } }