tests/mir-opt/pre-codegen/duplicate_switch_targets.ub_if_b.runtime-optimized.after.mir

// MIR for `ub_if_b` after runtime-optimized

fn ub_if_b(_1: Thing) -> Thing {
    debug t => _1;
    let mut _0: Thing;
    let mut _2: isize;
    let mut _3: bool;
    scope 1 (inlined #[track_caller] unreachable_unchecked) {
        scope 2 (inlined core::ub_checks::check_language_ub) {
            scope 3 (inlined core::ub_checks::check_language_ub::runtime) {
            }
        }
    }

    bb0: {
        _2 = discriminant(_1);
        _3 = Eq(copy _2, const 0_isize);
        assume(move _3);
        _0 = move _1;
        return;
    }
}