src/test/mir-opt/simplify-arm/rustc.id_try.SimplifyBranchSame.diff

- // MIR for `id_try` before SimplifyBranchSame
+ // MIR for `id_try` after SimplifyBranchSame
  
  fn id_try(_1: std::result::Result<u8, i32>) -> std::result::Result<u8, i32> {
      debug r => _1;                       // in scope 0 at $DIR/simplify-arm.rs:23:11: 23:12
      let mut _0: std::result::Result<u8, i32>; // return place in scope 0 at $DIR/simplify-arm.rs:23:34: 23:49
      let _2: u8;                          // in scope 0 at $DIR/simplify-arm.rs:24:9: 24:10
      let mut _3: std::result::Result<u8, i32>; // in scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
      let mut _4: std::result::Result<u8, i32>; // in scope 0 at $DIR/simplify-arm.rs:24:13: 24:14
      let mut _5: isize;                   // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let _6: i32;                         // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let mut _7: !;                       // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let mut _8: i32;                     // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let mut _9: i32;                     // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let _10: u8;                         // in scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
      let mut _11: u8;                     // in scope 0 at $DIR/simplify-arm.rs:25:8: 25:9
      scope 1 {
          debug x => _2;                   // in scope 1 at $DIR/simplify-arm.rs:24:9: 24:10
      }
      scope 2 {
          debug err => _6;                 // in scope 2 at $DIR/simplify-arm.rs:24:14: 24:15
          scope 3 {
          }
      }
      scope 4 {
          debug val => _10;                // in scope 4 at $DIR/simplify-arm.rs:24:13: 24:15
          scope 5 {
          }
      }
  
      bb0: {
          StorageLive(_2);                 // scope 0 at $DIR/simplify-arm.rs:24:9: 24:10
          StorageLive(_3);                 // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
          StorageLive(_4);                 // scope 0 at $DIR/simplify-arm.rs:24:13: 24:14
          _4 = _1;                         // scope 0 at $DIR/simplify-arm.rs:24:13: 24:14
          _3 = const <std::result::Result<u8, i32> as std::ops::Try>::into_result(move _4) -> bb1; // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
                                           // ty::Const
                                           // + ty: fn(std::result::Result<u8, i32>) -> std::result::Result<<std::result::Result<u8, i32> as std::ops::Try>::Ok, <std::result::Result<u8, i32> as std::ops::Try>::Error> {<std::result::Result<u8, i32> as std::ops::Try>::into_result}
                                           // + val: Value(Scalar(<ZST>))
                                           // mir::Constant
                                           // + span: $DIR/simplify-arm.rs:24:13: 24:15
                                           // + literal: Const { ty: fn(std::result::Result<u8, i32>) -> std::result::Result<<std::result::Result<u8, i32> as std::ops::Try>::Ok, <std::result::Result<u8, i32> as std::ops::Try>::Error> {<std::result::Result<u8, i32> as std::ops::Try>::into_result}, val: Value(Scalar(<ZST>)) }
      }
  
      bb1: {
          StorageDead(_4);                 // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
          _5 = discriminant(_3);           // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
          switchInt(move _5) -> [0_isize: bb2, 1_isize: bb4, otherwise: bb3]; // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      }
  
      bb2: {
          StorageLive(_10);                // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
          _10 = ((_3 as Ok).0: u8);        // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
          _2 = _10;                        // scope 5 at $DIR/simplify-arm.rs:24:13: 24:15
          StorageDead(_10);                // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
          StorageDead(_3);                 // scope 0 at $DIR/simplify-arm.rs:24:15: 24:16
          StorageLive(_11);                // scope 1 at $DIR/simplify-arm.rs:25:8: 25:9
          _11 = _2;                        // scope 1 at $DIR/simplify-arm.rs:25:8: 25:9
          ((_0 as Ok).0: u8) = move _11;   // scope 1 at $DIR/simplify-arm.rs:25:5: 25:10
          discriminant(_0) = 0;            // scope 1 at $DIR/simplify-arm.rs:25:5: 25:10
          StorageDead(_11);                // scope 1 at $DIR/simplify-arm.rs:25:9: 25:10
          StorageDead(_2);                 // scope 0 at $DIR/simplify-arm.rs:26:1: 26:2
          goto -> bb5;                     // scope 0 at $DIR/simplify-arm.rs:26:2: 26:2
      }
  
      bb3: {
          unreachable;                     // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
      }
  
      bb4: {
          StorageLive(_6);                 // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
          _6 = ((_3 as Err).0: i32);       // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
          StorageLive(_8);                 // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
          StorageLive(_9);                 // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
          _9 = _6;                         // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
          _8 = const <i32 as std::convert::From<i32>>::from(move _9) -> bb6; // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
                                           // ty::Const
                                           // + ty: fn(i32) -> i32 {<i32 as std::convert::From<i32>>::from}
                                           // + val: Value(Scalar(<ZST>))
                                           // mir::Constant
                                           // + span: $DIR/simplify-arm.rs:24:14: 24:15
                                           // + literal: Const { ty: fn(i32) -> i32 {<i32 as std::convert::From<i32>>::from}, val: Value(Scalar(<ZST>)) }
      }
  
      bb5: {
          return;                          // scope 0 at $DIR/simplify-arm.rs:26:2: 26:2
      }
  
      bb6: {
          StorageDead(_9);                 // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
          _0 = const <std::result::Result<u8, i32> as std::ops::Try>::from_error(move _8) -> bb7; // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
                                           // ty::Const
                                           // + ty: fn(<std::result::Result<u8, i32> as std::ops::Try>::Error) -> std::result::Result<u8, i32> {<std::result::Result<u8, i32> as std::ops::Try>::from_error}
                                           // + val: Value(Scalar(<ZST>))
                                           // mir::Constant
                                           // + span: $DIR/simplify-arm.rs:24:13: 24:15
                                           // + literal: Const { ty: fn(<std::result::Result<u8, i32> as std::ops::Try>::Error) -> std::result::Result<u8, i32> {<std::result::Result<u8, i32> as std::ops::Try>::from_error}, val: Value(Scalar(<ZST>)) }
      }
  
      bb7: {
          StorageDead(_8);                 // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
          StorageDead(_6);                 // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
          StorageDead(_3);                 // scope 0 at $DIR/simplify-arm.rs:24:15: 24:16
          StorageDead(_2);                 // scope 0 at $DIR/simplify-arm.rs:26:1: 26:2
          goto -> bb5;                     // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      }
  }