- // MIR for `identity` before SeparateConstSwitch + // MIR for `identity` after SeparateConstSwitch fn identity(_1: Result) -> Result { debug x => _1; // in scope 0 at $DIR/separate_const_switch.rs:+0:13: +0:14 let mut _0: std::result::Result; // return place in scope 0 at $DIR/separate_const_switch.rs:+0:37: +0:53 let mut _2: i32; // in scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 let mut _3: std::ops::ControlFlow, i32>; // in scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 let mut _4: std::result::Result; // in scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:9 let mut _5: isize; // in scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 let _6: std::result::Result; // in scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 let mut _7: !; // in scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 let mut _8: std::result::Result; // in scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 let _9: i32; // in scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 scope 1 { debug residual => _6; // in scope 1 at $DIR/separate_const_switch.rs:+1:9: +1:10 scope 2 { scope 8 (inlined #[track_caller] as FromResidual>>::from_residual) { // at $DIR/separate_const_switch.rs:25:8: 25:10 debug residual => _8; // in scope 8 at $SRC_DIR/core/src/result.rs:LL:COL let _16: i32; // in scope 8 at $SRC_DIR/core/src/result.rs:LL:COL let mut _17: i32; // in scope 8 at $SRC_DIR/core/src/result.rs:LL:COL let mut _18: i32; // in scope 8 at $SRC_DIR/core/src/result.rs:LL:COL scope 9 { debug e => _16; // in scope 9 at $SRC_DIR/core/src/result.rs:LL:COL scope 10 (inlined >::from) { // at $SRC_DIR/core/src/result.rs:LL:COL debug t => _18; // in scope 10 at $SRC_DIR/core/src/convert/mod.rs:LL:COL } } } } } scope 3 { debug val => _9; // in scope 3 at $DIR/separate_const_switch.rs:+1:8: +1:10 scope 4 { } } scope 5 (inlined as Try>::branch) { // at $DIR/separate_const_switch.rs:25:8: 25:10 debug self => _4; // in scope 5 at $SRC_DIR/core/src/result.rs:LL:COL let mut _10: isize; // in scope 5 at $SRC_DIR/core/src/result.rs:LL:COL let _11: i32; // in scope 5 at $SRC_DIR/core/src/result.rs:LL:COL let mut _12: i32; // in scope 5 at $SRC_DIR/core/src/result.rs:LL:COL let _13: i32; // in scope 5 at $SRC_DIR/core/src/result.rs:LL:COL let mut _14: std::result::Result; // in scope 5 at $SRC_DIR/core/src/result.rs:LL:COL let mut _15: i32; // in scope 5 at $SRC_DIR/core/src/result.rs:LL:COL scope 6 { debug v => _11; // in scope 6 at $SRC_DIR/core/src/result.rs:LL:COL } scope 7 { debug e => _13; // in scope 7 at $SRC_DIR/core/src/result.rs:LL:COL } } bb0: { StorageLive(_2); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 StorageLive(_3); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 StorageLive(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:9 _4 = _1; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:9 _10 = discriminant(_4); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL - switchInt(move _10) -> [0_isize: bb7, 1_isize: bb5, otherwise: bb6]; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL + switchInt(move _10) -> [0_isize: bb6, 1_isize: bb4, otherwise: bb5]; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL } bb1: { - StorageDead(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 - _5 = discriminant(_3); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 - switchInt(move _5) -> [0_isize: bb2, 1_isize: bb4, otherwise: bb3]; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 - } - - bb2: { StorageLive(_9); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 _9 = ((_3 as Continue).0: i32); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 _2 = _9; // scope 4 at $DIR/separate_const_switch.rs:+1:8: +1:10 StorageDead(_9); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 Deinit(_0); // scope 0 at $DIR/separate_const_switch.rs:+1:5: +1:11 ((_0 as Ok).0: i32) = move _2; // scope 0 at $DIR/separate_const_switch.rs:+1:5: +1:11 discriminant(_0) = 0; // scope 0 at $DIR/separate_const_switch.rs:+1:5: +1:11 StorageDead(_2); // scope 0 at $DIR/separate_const_switch.rs:+1:10: +1:11 StorageDead(_3); // scope 0 at $DIR/separate_const_switch.rs:+2:1: +2:2 return; // scope 0 at $DIR/separate_const_switch.rs:+2:2: +2:2 } - bb3: { + bb2: { unreachable; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 } - bb4: { + bb3: { StorageLive(_6); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 _6 = ((_3 as Break).0: std::result::Result); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 StorageLive(_8); // scope 2 at $DIR/separate_const_switch.rs:+1:9: +1:10 _8 = _6; // scope 2 at $DIR/separate_const_switch.rs:+1:9: +1:10 StorageLive(_16); // scope 8 at $SRC_DIR/core/src/result.rs:LL:COL _16 = move ((_8 as Err).0: i32); // scope 8 at $SRC_DIR/core/src/result.rs:LL:COL StorageLive(_17); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL StorageLive(_18); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL _18 = move _16; // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL _17 = move _18; // scope 10 at $SRC_DIR/core/src/convert/mod.rs:LL:COL StorageDead(_18); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL Deinit(_0); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL ((_0 as Err).0: i32) = move _17; // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL discriminant(_0) = 1; // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_17); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_16); // scope 8 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_8); // scope 2 at $DIR/separate_const_switch.rs:+1:9: +1:10 StorageDead(_6); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 StorageDead(_2); // scope 0 at $DIR/separate_const_switch.rs:+1:10: +1:11 StorageDead(_3); // scope 0 at $DIR/separate_const_switch.rs:+2:1: +2:2 return; // scope 0 at $DIR/separate_const_switch.rs:+2:2: +2:2 } - bb5: { + bb4: { StorageLive(_13); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL _13 = move ((_4 as Err).0: i32); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL StorageLive(_14); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL StorageLive(_15); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL _15 = move _13; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL Deinit(_14); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL ((_14 as Err).0: i32) = move _15; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL discriminant(_14) = 1; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_15); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL Deinit(_3); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL ((_3 as Break).0: std::result::Result) = move _14; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL discriminant(_3) = 1; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_14); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_13); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL - goto -> bb1; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL + StorageDead(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 + _5 = discriminant(_3); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 + switchInt(move _5) -> [0_isize: bb1, 1_isize: bb3, otherwise: bb2]; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 } - bb6: { + bb5: { unreachable; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL } - bb7: { + bb6: { StorageLive(_11); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL _11 = move ((_4 as Ok).0: i32); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL StorageLive(_12); // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL _12 = move _11; // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL Deinit(_3); // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL ((_3 as Continue).0: i32) = move _12; // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL discriminant(_3) = 0; // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_12); // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_11); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL - goto -> bb1; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL + StorageDead(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 + _5 = discriminant(_3); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 + switchInt(move _5) -> [0_isize: bb1, 1_isize: bb3, otherwise: bb2]; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 } }