// MIR for `unwrap_unchecked` after PreCodegen fn unwrap_unchecked(_1: Option) -> T { debug slf => _1; let mut _0: T; scope 1 (inlined #[track_caller] Option::::unwrap_unchecked) { debug self => _1; let mut _2: isize; scope 2 { debug val => _0; } scope 3 { scope 4 (inlined unreachable_unchecked) { let mut _3: bool; let _4: (); scope 5 { } scope 6 (inlined core::ub_checks::check_language_ub) { scope 7 (inlined core::ub_checks::check_language_ub::runtime) { } } } } } bb0: { StorageLive(_2); _2 = discriminant(_1); switchInt(move _2) -> [0: bb1, 1: bb2, otherwise: bb3]; } bb1: { StorageLive(_3); _3 = UbChecks(); assume(_3); _4 = unreachable_unchecked::precondition_check() -> [return: bb3, unwind unreachable]; } bb2: { _0 = ((_1 as Some).0: T); StorageDead(_2); return; } bb3: { unreachable; } }