rust/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-unwind.mir

// MIR for `unchecked_shl_unsigned_smaller` after PreCodegen

fn unchecked_shl_unsigned_smaller(_1: u16, _2: u32) -> u16 {
    debug a => _1;
    debug b => _2;
    let mut _0: u16;
    scope 1 (inlined core::num::<impl u16>::unchecked_shl) {
        debug self => _1;
        debug rhs => _2;
        let mut _11: u16;
        scope 2 {
            scope 3 (inlined core::num::<impl u16>::unchecked_shl::conv) {
                debug x => _2;
                let mut _6: std::result::Result<u16, std::num::TryFromIntError>;
                let mut _9: std::option::Option<u16>;
                scope 4 {
                    scope 5 (inlined <u32 as TryInto<u16>>::try_into) {
                        debug self => _2;
                        scope 6 (inlined convert::num::<impl TryFrom<u32> for u16>::try_from) {
                            debug u => _2;
                            let mut _3: u32;
                            let mut _4: bool;
                            let mut _5: u16;
                        }
                    }
                    scope 7 (inlined Result::<u16, TryFromIntError>::ok) {
                        debug self => _6;
                        let mut _7: isize;
                        let _8: u16;
                        scope 8 {
                            debug x => _8;
                        }
                    }
                    scope 9 (inlined #[track_caller] Option::<u16>::unwrap_unchecked) {
                        debug self => _9;
                        let mut _10: isize;
                        let mut _12: &std::option::Option<u16>;
                        scope 10 {
                            debug val => _11;
                        }
                        scope 11 {
                            scope 13 (inlined unreachable_unchecked) {
                                scope 14 {
                                    scope 15 (inlined unreachable_unchecked::runtime) {
                                    }
                                }
                            }
                        }
                        scope 12 (inlined Option::<u16>::is_some) {
                            debug self => _12;
                        }
                    }
                }
            }
        }
    }

    bb0: {
        StorageLive(_11);
        StorageLive(_9);
        StorageLive(_6);
        StorageLive(_4);
        StorageLive(_3);
        _3 = const 65535_u32;
        _4 = Gt(_2, move _3);
        StorageDead(_3);
        switchInt(move _4) -> [0: bb1, otherwise: bb2];
    }

    bb1: {
        StorageLive(_5);
        _5 = _2 as u16 (IntToInt);
        _6 = Result::<u16, TryFromIntError>::Ok(move _5);
        StorageDead(_5);
        goto -> bb3;
    }

    bb2: {
        _6 = Result::<u16, TryFromIntError>::Err(const TryFromIntError(()));
        goto -> bb3;
    }

    bb3: {
        StorageDead(_4);
        StorageLive(_8);
        _7 = discriminant(_6);
        switchInt(move _7) -> [0: bb4, 1: bb5, otherwise: bb9];
    }

    bb4: {
        _8 = move ((_6 as Ok).0: u16);
        _9 = Option::<u16>::Some(move _8);
        goto -> bb6;
    }

    bb5: {
        _9 = Option::<u16>::None;
        goto -> bb6;
    }

    bb6: {
        StorageDead(_8);
        StorageDead(_6);
        StorageLive(_12);
        _10 = discriminant(_9);
        switchInt(move _10) -> [1: bb7, otherwise: bb9];
    }

    bb7: {
        _11 = move ((_9 as Some).0: u16);
        StorageDead(_12);
        StorageDead(_9);
        _0 = unchecked_shl::<u16>(_1, move _11) -> [return: bb8, unwind unreachable];
    }

    bb8: {
        StorageDead(_11);
        return;
    }

    bb9: {
        unreachable;
    }
}