rust/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_smaller.PreCodegen.after.mir

// MIR for `unchecked_shr_signed_smaller` after PreCodegen

fn unchecked_shr_signed_smaller(_1: i16, _2: u32) -> i16 {
    debug a => _1;                       // in scope 0 at $DIR/unchecked_shifts.rs:+0:44: +0:45
    debug b => _2;                       // in scope 0 at $DIR/unchecked_shifts.rs:+0:52: +0:53
    let mut _0: i16;                     // return place in scope 0 at $DIR/unchecked_shifts.rs:+0:63: +0:66
    scope 1 (inlined core::num::<impl i16>::unchecked_shr) { // at $DIR/unchecked_shifts.rs:17:7: 17:23
        debug self => _1;                // in scope 1 at $SRC_DIR/core/src/num/int_macros.rs:LL:COL
        debug rhs => _2;                 // in scope 1 at $SRC_DIR/core/src/num/int_macros.rs:LL:COL
        let mut _3: i16;                 // in scope 1 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        let mut _4: (u32,);              // in scope 1 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        let mut _5: u32;                 // in scope 1 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        scope 2 {
            scope 3 (inlined core::num::<impl i16>::unchecked_shr::conv) { // at $SRC_DIR/core/src/num/mod.rs:LL:COL
                debug x => _5;           // in scope 3 at $SRC_DIR/core/src/num/mod.rs:LL:COL
                let mut _6: std::option::Option<i16>; // in scope 3 at $SRC_DIR/core/src/num/mod.rs:LL:COL
                let mut _7: std::result::Result<i16, std::num::TryFromIntError>; // in scope 3 at $SRC_DIR/core/src/num/mod.rs:LL:COL
                scope 4 {
                    scope 5 (inlined <u32 as TryInto<i16>>::try_into) { // at $SRC_DIR/core/src/num/mod.rs:LL:COL
                        debug self => _5; // in scope 5 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
                        scope 6 (inlined convert::num::<impl TryFrom<u32> for i16>::try_from) { // at $SRC_DIR/core/src/convert/mod.rs:LL:COL
                            debug u => _5; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
                            let mut _8: bool; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
                            let mut _9: u32; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
                            let mut _10: i16; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
                        }
                    }
                    scope 7 (inlined Result::<i16, TryFromIntError>::ok) { // at $SRC_DIR/core/src/num/mod.rs:LL:COL
                        debug self => _7; // in scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
                        let mut _11: isize; // in scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
                        let _12: i16;    // in scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
                        scope 8 {
                            debug x => _12; // in scope 8 at $SRC_DIR/core/src/result.rs:LL:COL
                        }
                    }
                    scope 9 (inlined #[track_caller] Option::<i16>::unwrap_unchecked) { // at $SRC_DIR/core/src/num/mod.rs:LL:COL
                        debug self => _6; // in scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
                        let mut _13: &std::option::Option<i16>; // in scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
                        let mut _14: isize; // in scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
                        scope 10 {
                            debug val => _3; // in scope 10 at $SRC_DIR/core/src/option.rs:LL:COL
                        }
                        scope 11 {
                            scope 13 (inlined unreachable_unchecked) { // at $SRC_DIR/core/src/option.rs:LL:COL
                                scope 14 {
                                    scope 15 (inlined unreachable_unchecked::runtime) { // at $SRC_DIR/core/src/intrinsics.rs:LL:COL
                                    }
                                }
                            }
                        }
                        scope 12 (inlined Option::<i16>::is_some) { // at $SRC_DIR/core/src/option.rs:LL:COL
                            debug self => _13; // in scope 12 at $SRC_DIR/core/src/option.rs:LL:COL
                        }
                    }
                }
            }
        }
    }

    bb0: {
        StorageLive(_3);                 // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageLive(_4);                 // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        _4 = (_2,);                      // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageLive(_5);                 // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        _5 = move (_4.0: u32);           // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageLive(_6);                 // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageLive(_7);                 // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageLive(_8);                 // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        StorageLive(_9);                 // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        _9 = const 32767_u32;            // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        _8 = Gt(_5, move _9);            // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        StorageDead(_9);                 // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        switchInt(move _8) -> [0: bb3, otherwise: bb2]; // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
    }

    bb1: {
        StorageDead(_3);                 // scope 2 at $SRC_DIR/core/src/num/int_macros.rs:LL:COL
        return;                          // scope 0 at $DIR/unchecked_shifts.rs:+2:2: +2:2
    }

    bb2: {
        _7 = Result::<i16, TryFromIntError>::Err(const TryFromIntError(())); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
                                         // mir::Constant
                                         // + span: no-location
                                         // + literal: Const { ty: TryFromIntError, val: Value(<ZST>) }
        goto -> bb4;                     // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
    }

    bb3: {
        StorageLive(_10);                // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        _10 = _5 as i16 (IntToInt);      // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        _7 = Result::<i16, TryFromIntError>::Ok(move _10); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        StorageDead(_10);                // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        goto -> bb4;                     // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
    }

    bb4: {
        StorageDead(_8);                 // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        StorageLive(_12);                // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        _11 = discriminant(_7);          // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
        switchInt(move _11) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
    }

    bb5: {
        _6 = Option::<i16>::None;        // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
        goto -> bb8;                     // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
    }

    bb6: {
        unreachable;                     // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
    }

    bb7: {
        _12 = move ((_7 as Ok).0: i16);  // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
        _6 = Option::<i16>::Some(move _12); // scope 8 at $SRC_DIR/core/src/result.rs:LL:COL
        goto -> bb8;                     // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
    }

    bb8: {
        StorageDead(_12);                // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageDead(_7);                 // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageLive(_13);                // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        _14 = discriminant(_6);          // scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
        switchInt(move _14) -> [1: bb9, otherwise: bb6]; // scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
    }

    bb9: {
        _3 = move ((_6 as Some).0: i16); // scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
        StorageDead(_13);                // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageDead(_6);                 // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageDead(_5);                 // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        StorageDead(_4);                 // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
        _0 = unchecked_shr::<i16>(_1, move _3) -> [return: bb1, unwind unreachable]; // scope 2 at $SRC_DIR/core/src/num/int_macros.rs:LL:COL
                                         // mir::Constant
                                         // + span: $SRC_DIR/core/src/num/int_macros.rs:LL:COL
                                         // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(i16, i16) -> i16 {unchecked_shr::<i16>}, val: Value(<ZST>) }
    }
}