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- // MIR for `mutate_discriminant` before JumpThreading
+ // MIR for `mutate_discriminant` after JumpThreading
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;
}
}
|
