[rustc.git] / tests / mir-opt / inline / unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.mir

// MIR for `unchecked_shl_unsigned_smaller` after PreCodegen

fn unchecked_shl_unsigned_smaller(_1: u16, _2: u32) -> u16 {
    debug a => _1;                       // in scope 0 at $DIR/unchecked_shifts.rs:+0:46: +0:47
    debug b => _2;                       // in scope 0 at $DIR/unchecked_shifts.rs:+0:54: +0:55
    let mut _0: u16;                     // return place in scope 0 at $DIR/unchecked_shifts.rs:+0:65: +0:68
    scope 1 (inlined core::num::<impl u16>::unchecked_shl) { // at $DIR/unchecked_shifts.rs:11:7: 11:23
        debug self => _1;                // in scope 1 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
        debug rhs => _2;                 // in scope 1 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
        let mut _3: u16;                 // 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 u16>::unchecked_shl::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<u16>; // in scope 3 at $SRC_DIR/core/src/num/mod.rs:LL:COL
                let mut _7: std::result::Result<u16, std::num::TryFromIntError>; // in scope 3 at $SRC_DIR/core/src/num/mod.rs:LL:COL
                scope 4 {
                    scope 5 (inlined <u32 as TryInto<u16>>::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 u16>::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: u16; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
                        }
                    }
                    scope 7 (inlined Result::<u16, 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: u16;    // 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::<u16>::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<u16>; // 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::<u16>::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 65535_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/uint_macros.rs:LL:COL
        return;                          // scope 0 at $DIR/unchecked_shifts.rs:+2:2: +2:2
    }

    bb2: {
        _7 = Result::<u16, 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 u16 (IntToInt);      // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
        _7 = Result::<u16, 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::<u16>::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: u16);  // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
        _6 = Option::<u16>::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: u16); // 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_shl::<u16>(_1, move _3) -> [return: bb1, unwind unreachable]; // scope 2 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
                                         // mir::Constant
                                         // + span: $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
                                         // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(u16, u16) -> u16 {unchecked_shl::<u16>}, val: Value(<ZST>) }
    }
}
Commit	Line	Data
353b0b11 FG	1	// MIR for `unchecked_shl_unsigned_smaller` after PreCodegen
	2
	3	fn unchecked_shl_unsigned_smaller(_1: u16, _2: u32) -> u16 {
	4	debug a => _1; // in scope 0 at $DIR/unchecked_shifts.rs:+0:46: +0:47
	5	debug b => _2; // in scope 0 at $DIR/unchecked_shifts.rs:+0:54: +0:55
	6	let mut _0: u16; // return place in scope 0 at $DIR/unchecked_shifts.rs:+0:65: +0:68
	7	scope 1 (inlined core::num::<impl u16>::unchecked_shl) { // at $DIR/unchecked_shifts.rs:11:7: 11:23
	8	debug self => _1; // in scope 1 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
	9	debug rhs => _2; // in scope 1 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
49aad941 FG	10	let mut _3: u16; // in scope 1 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	11	let mut _4: (u32,); // in scope 1 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	12	let mut _5: u32; // in scope 1 at $SRC_DIR/core/src/num/mod.rs:LL:COL
353b0b11	13	scope 2 {
49aad941 FG	14	scope 3 (inlined core::num::<impl u16>::unchecked_shl::conv) { // at $SRC_DIR/core/src/num/mod.rs:LL:COL
	15	debug x => _5; // in scope 3 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	16	let mut _6: std::option::Option<u16>; // in scope 3 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	17	let mut _7: std::result::Result<u16, std::num::TryFromIntError>; // in scope 3 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	18	scope 4 {
	19	scope 5 (inlined <u32 as TryInto<u16>>::try_into) { // at $SRC_DIR/core/src/num/mod.rs:LL:COL
	20	debug self => _5; // in scope 5 at $SRC_DIR/core/src/convert/mod.rs:LL:COL
	21	scope 6 (inlined convert::num::<impl TryFrom<u32> for u16>::try_from) { // at $SRC_DIR/core/src/convert/mod.rs:LL:COL
	22	debug u => _5; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	23	let mut _8: bool; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	24	let mut _9: u32; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	25	let mut _10: u16; // in scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	26	}
353b0b11	27	}
49aad941 FG	28	scope 7 (inlined Result::<u16, TryFromIntError>::ok) { // at $SRC_DIR/core/src/num/mod.rs:LL:COL
	29	debug self => _7; // in scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
	30	let mut _11: isize; // in scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
	31	let _12: u16; // in scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
	32	scope 8 {
	33	debug x => _12; // in scope 8 at $SRC_DIR/core/src/result.rs:LL:COL
	34	}
	35	}
	36	scope 9 (inlined #[track_caller] Option::<u16>::unwrap_unchecked) { // at $SRC_DIR/core/src/num/mod.rs:LL:COL
	37	debug self => _6; // in scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
	38	let mut _13: &std::option::Option<u16>; // in scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
	39	let mut _14: isize; // in scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
	40	scope 10 {
	41	debug val => _3; // in scope 10 at $SRC_DIR/core/src/option.rs:LL:COL
	42	}
	43	scope 11 {
	44	scope 13 (inlined unreachable_unchecked) { // at $SRC_DIR/core/src/option.rs:LL:COL
	45	scope 14 {
	46	scope 15 (inlined unreachable_unchecked::runtime) { // at $SRC_DIR/core/src/intrinsics.rs:LL:COL
	47	}
	48	}
353b0b11 FG	49	}
353b0b11 FG	50	}
49aad941 FG	51	scope 12 (inlined Option::<u16>::is_some) { // at $SRC_DIR/core/src/option.rs:LL:COL
	52	debug self => _13; // in scope 12 at $SRC_DIR/core/src/option.rs:LL:COL
	53	}
353b0b11 FG	54	}
353b0b11 FG	55	}
353b0b11 FG	56	}
	57	}
	58	}
	59
	60	bb0: {
49aad941 FG	61	StorageLive(_3); // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	62	StorageLive(_4); // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	63	_4 = (_2,); // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	64	StorageLive(_5); // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	65	_5 = move (_4.0: u32); // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	66	StorageLive(_6); // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	67	StorageLive(_7); // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	68	StorageLive(_8); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	69	StorageLive(_9); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	70	_9 = const 65535_u32; // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	71	_8 = Gt(_5, move _9); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	72	StorageDead(_9); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	73	switchInt(move _8) -> [0: bb3, otherwise: bb2]; // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
353b0b11 FG	74	}
	75
	76	bb1: {
353b0b11 FG	77	StorageDead(_3); // scope 2 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
	78	return; // scope 0 at $DIR/unchecked_shifts.rs:+2:2: +2:2
	79	}
	80
49aad941 FG	81	bb2: {
49aad941 FG	82	_7 = Result::<u16, TryFromIntError>::Err(const TryFromIntError(())); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
353b0b11 FG	83	// mir::Constant
	84	// + span: no-location
	85	// + literal: Const { ty: TryFromIntError, val: Value(<ZST>) }
49aad941 FG	86	goto -> bb4; // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	87	}
	88
	89	bb3: {
	90	StorageLive(_10); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	91	_10 = _5 as u16 (IntToInt); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	92	_7 = Result::<u16, TryFromIntError>::Ok(move _10); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	93	StorageDead(_10); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	94	goto -> bb4; // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
353b0b11 FG	95	}
	96
	97	bb4: {
49aad941 FG	98	StorageDead(_8); // scope 6 at $SRC_DIR/core/src/convert/num.rs:LL:COL
	99	StorageLive(_12); // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	100	_11 = discriminant(_7); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
	101	switchInt(move _11) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
353b0b11 FG	102	}
	103
	104	bb5: {
49aad941 FG	105	_6 = Option::<u16>::None; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
49aad941 FG	106	goto -> bb8; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
353b0b11 FG	107	}
	108
	109	bb6: {
49aad941	110	unreachable; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
353b0b11 FG	111	}
	112
	113	bb7: {
49aad941 FG	114	_12 = move ((_7 as Ok).0: u16); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
	115	_6 = Option::<u16>::Some(move _12); // scope 8 at $SRC_DIR/core/src/result.rs:LL:COL
	116	goto -> bb8; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL
353b0b11 FG	117	}
	118
	119	bb8: {
49aad941 FG	120	StorageDead(_12); // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	121	StorageDead(_7); // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	122	StorageLive(_13); // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	123	_14 = discriminant(_6); // scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
	124	switchInt(move _14) -> [1: bb9, otherwise: bb6]; // scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
353b0b11 FG	125	}
	126
	127	bb9: {
49aad941 FG	128	_3 = move ((_6 as Some).0: u16); // scope 9 at $SRC_DIR/core/src/option.rs:LL:COL
	129	StorageDead(_13); // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	130	StorageDead(_6); // scope 4 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	131	StorageDead(_5); // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	132	StorageDead(_4); // scope 2 at $SRC_DIR/core/src/num/mod.rs:LL:COL
	133	_0 = unchecked_shl::<u16>(_1, move _3) -> [return: bb1, unwind unreachable]; // scope 2 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
353b0b11 FG	134	// mir::Constant
	135	// + span: $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
	136	// + literal: Const { ty: unsafe extern "rust-intrinsic" fn(u16, u16) -> u16 {unchecked_shl::<u16>}, val: Value(<ZST>) }
	137	}
	138	}