| - // MIR for `arithmetic_checked` before GVN |
| + // MIR for `arithmetic_checked` after GVN |
| |
| fn arithmetic_checked(_1: u64) -> () { |
| debug x => _1; |
| let mut _0: (); |
| let _2: (); |
| let mut _3: u64; |
| let mut _4: u64; |
| let mut _5: (u64, bool); |
| let _6: (); |
| let mut _7: u64; |
| let mut _8: u64; |
| let mut _9: (u64, bool); |
| let _10: (); |
| let mut _11: u64; |
| let mut _12: u64; |
| let mut _13: u64; |
| let mut _14: (u64, bool); |
| let _15: (); |
| let mut _16: u64; |
| let mut _17: u64; |
| let mut _18: (u64, bool); |
| let _19: (); |
| let mut _20: u64; |
| let mut _21: u64; |
| let mut _22: (u64, bool); |
| |
| bb0: { |
| StorageLive(_2); |
| StorageLive(_3); |
| StorageLive(_4); |
| _4 = copy _1; |
| - _5 = AddWithOverflow(copy _4, const 0_u64); |
| - assert(!move (_5.1: bool), "attempt to compute `{} + {}`, which would overflow", move _4, const 0_u64) -> [success: bb1, unwind unreachable]; |
| + _5 = AddWithOverflow(copy _1, const 0_u64); |
| + assert(!const false, "attempt to compute `{} + {}`, which would overflow", copy _1, const 0_u64) -> [success: bb1, unwind unreachable]; |
| } |
| |
| bb1: { |
| - _3 = move (_5.0: u64); |
| + _3 = copy _1; |
| StorageDead(_4); |
| - _2 = opaque::<u64>(move _3) -> [return: bb2, unwind unreachable]; |
| + _2 = opaque::<u64>(copy _1) -> [return: bb2, unwind unreachable]; |
| } |
| |
| bb2: { |
| StorageDead(_3); |
| StorageDead(_2); |
| StorageLive(_6); |
| StorageLive(_7); |
| StorageLive(_8); |
| _8 = copy _1; |
| - _9 = SubWithOverflow(copy _8, const 0_u64); |
| - assert(!move (_9.1: bool), "attempt to compute `{} - {}`, which would overflow", move _8, const 0_u64) -> [success: bb3, unwind unreachable]; |
| + _9 = copy _5; |
| + assert(!const false, "attempt to compute `{} - {}`, which would overflow", copy _1, const 0_u64) -> [success: bb3, unwind unreachable]; |
| } |
| |
| bb3: { |
| - _7 = move (_9.0: u64); |
| + _7 = copy _1; |
| StorageDead(_8); |
| - _6 = opaque::<u64>(move _7) -> [return: bb4, unwind unreachable]; |
| + _6 = opaque::<u64>(copy _1) -> [return: bb4, unwind unreachable]; |
| } |
| |
| bb4: { |
| StorageDead(_7); |
| StorageDead(_6); |
| StorageLive(_10); |
| - StorageLive(_11); |
| + nop; |
| StorageLive(_12); |
| _12 = copy _1; |
| StorageLive(_13); |
| _13 = copy _1; |
| - _14 = SubWithOverflow(copy _12, copy _13); |
| - assert(!move (_14.1: bool), "attempt to compute `{} - {}`, which would overflow", move _12, move _13) -> [success: bb5, unwind unreachable]; |
| + _14 = const (0_u64, false); |
| + assert(!const false, "attempt to compute `{} - {}`, which would overflow", copy _1, copy _1) -> [success: bb5, unwind unreachable]; |
| } |
| |
| bb5: { |
| - _11 = move (_14.0: u64); |
| + _11 = const 0_u64; |
| StorageDead(_13); |
| StorageDead(_12); |
| - _10 = opaque::<u64>(move _11) -> [return: bb6, unwind unreachable]; |
| + _10 = opaque::<u64>(const 0_u64) -> [return: bb6, unwind unreachable]; |
| } |
| |
| bb6: { |
| - StorageDead(_11); |
| + nop; |
| StorageDead(_10); |
| StorageLive(_15); |
| StorageLive(_16); |
| StorageLive(_17); |
| _17 = copy _1; |
| - _18 = MulWithOverflow(copy _17, const 0_u64); |
| - assert(!move (_18.1: bool), "attempt to compute `{} * {}`, which would overflow", move _17, const 0_u64) -> [success: bb7, unwind unreachable]; |
| + _18 = const (0_u64, false); |
| + assert(!const false, "attempt to compute `{} * {}`, which would overflow", copy _1, const 0_u64) -> [success: bb7, unwind unreachable]; |
| } |
| |
| bb7: { |
| - _16 = move (_18.0: u64); |
| + _16 = const 0_u64; |
| StorageDead(_17); |
| - _15 = opaque::<u64>(move _16) -> [return: bb8, unwind unreachable]; |
| + _15 = opaque::<u64>(const 0_u64) -> [return: bb8, unwind unreachable]; |
| } |
| |
| bb8: { |
| StorageDead(_16); |
| StorageDead(_15); |
| StorageLive(_19); |
| StorageLive(_20); |
| StorageLive(_21); |
| _21 = copy _1; |
| - _22 = MulWithOverflow(copy _21, const 1_u64); |
| - assert(!move (_22.1: bool), "attempt to compute `{} * {}`, which would overflow", move _21, const 1_u64) -> [success: bb9, unwind unreachable]; |
| + _22 = copy _5; |
| + assert(!const false, "attempt to compute `{} * {}`, which would overflow", copy _1, const 1_u64) -> [success: bb9, unwind unreachable]; |
| } |
| |
| bb9: { |
| - _20 = move (_22.0: u64); |
| + _20 = copy _1; |
| StorageDead(_21); |
| - _19 = opaque::<u64>(move _20) -> [return: bb10, unwind unreachable]; |
| + _19 = opaque::<u64>(copy _1) -> [return: bb10, unwind unreachable]; |
| } |
| |
| bb10: { |
| StorageDead(_20); |
| StorageDead(_19); |
| _0 = const (); |
| return; |
| } |
| } |
| + |
| + ALLOC0 (size: 16, align: 8) { .. } |
| |