| - // MIR for `mutate_discriminant` before DataflowConstProp | |
| + // MIR for `mutate_discriminant` after DataflowConstProp | |
| fn mutate_discriminant() -> u8 { | |
| let mut _0: u8; | |
| let mut _1: std::option::Option<NonZeroUsize>; | |
| let mut _2: isize; | |
| bb0: { | |
| discriminant(_1) = 1; | |
| (((_1 as variant#1).0: NonZeroUsize).0: usize) = const 0_usize; | |
| _2 = discriminant(_1); | |
| switchInt(copy _2) -> [0: bb1, otherwise: bb2]; | |
| } | |
| bb1: { | |
| _0 = const 1_u8; | |
| return; | |
| } | |
| bb2: { | |
| _0 = const 2_u8; | |
| unreachable; | |
| } | |
| } | |