- // MIR for `cast` before GVN
+ // MIR for `cast` after GVN
  
  fn cast() -> () {
      let mut _0: ();
      let _1: i64;
      let _4: ();
      let mut _5: u8;
      let mut _6: i64;
      let _7: ();
      let mut _8: u16;
      let mut _9: i64;
      let _10: ();
      let mut _11: u32;
      let mut _12: i64;
      let _13: ();
      let mut _14: u64;
      let mut _15: i64;
      let _16: ();
      let mut _17: i8;
      let mut _18: i64;
      let _19: ();
      let mut _20: i16;
      let mut _21: i64;
      let _22: ();
      let mut _23: i32;
      let mut _24: i64;
      let _25: ();
      let mut _26: i64;
      let _27: ();
      let mut _28: f32;
      let mut _29: i64;
      let _30: ();
      let mut _31: f64;
      let mut _32: i64;
      let _33: ();
      let mut _34: u8;
      let mut _35: u64;
      let _36: ();
      let mut _37: u16;
      let mut _38: u64;
      let _39: ();
      let mut _40: u32;
      let mut _41: u64;
      let _42: ();
      let mut _43: u64;
      let _44: ();
      let mut _45: i8;
      let mut _46: u64;
      let _47: ();
      let mut _48: i16;
      let mut _49: u64;
      let _50: ();
      let mut _51: i32;
      let mut _52: u64;
      let _53: ();
      let mut _54: i64;
      let mut _55: u64;
      let _56: ();
      let mut _57: f32;
      let mut _58: u64;
      let _59: ();
      let mut _60: f64;
      let mut _61: u64;
      let _62: ();
      let mut _63: u8;
      let mut _64: f64;
      let _65: ();
      let mut _66: u16;
      let mut _67: f64;
      let _68: ();
      let mut _69: u32;
      let mut _70: f64;
      let _71: ();
      let mut _72: u64;
      let mut _73: f64;
      let _74: ();
      let mut _75: i8;
      let mut _76: f64;
      let _77: ();
      let mut _78: i16;
      let mut _79: f64;
      let _80: ();
      let mut _81: i32;
      let mut _82: f64;
      let _83: ();
      let mut _84: i64;
      let mut _85: f64;
      let _86: ();
      let mut _87: f32;
      let mut _88: f64;
      let _89: ();
      let mut _90: f64;
      scope 1 {
          debug i => _1;
          let _2: u64;
          scope 2 {
              debug u => _2;
              let _3: f64;
              scope 3 {
                  debug f => _3;
              }
          }
      }
  
      bb0: {
-         StorageLive(_1);
+         nop;
          _1 = const 1_i64;
-         StorageLive(_2);
+         nop;
          _2 = const 1_u64;
-         StorageLive(_3);
+         nop;
          _3 = const 1f64;
          StorageLive(_4);
          StorageLive(_5);
          StorageLive(_6);
-         _6 = copy _1;
-         _5 = move _6 as u8 (IntToInt);
+         _6 = const 1_i64;
+         _5 = const 1_u8;
          StorageDead(_6);
-         _4 = opaque::<u8>(move _5) -> [return: bb1, unwind unreachable];
+         _4 = opaque::<u8>(const 1_u8) -> [return: bb1, unwind unreachable];
      }
  
      bb1: {
          StorageDead(_5);
          StorageDead(_4);
          StorageLive(_7);
          StorageLive(_8);
          StorageLive(_9);
-         _9 = copy _1;
-         _8 = move _9 as u16 (IntToInt);
+         _9 = const 1_i64;
+         _8 = const 1_u16;
          StorageDead(_9);
-         _7 = opaque::<u16>(move _8) -> [return: bb2, unwind unreachable];
+         _7 = opaque::<u16>(const 1_u16) -> [return: bb2, unwind unreachable];
      }
  
      bb2: {
          StorageDead(_8);
          StorageDead(_7);
          StorageLive(_10);
          StorageLive(_11);
          StorageLive(_12);
-         _12 = copy _1;
-         _11 = move _12 as u32 (IntToInt);
+         _12 = const 1_i64;
+         _11 = const 1_u32;
          StorageDead(_12);
-         _10 = opaque::<u32>(move _11) -> [return: bb3, unwind unreachable];
+         _10 = opaque::<u32>(const 1_u32) -> [return: bb3, unwind unreachable];
      }
  
      bb3: {
          StorageDead(_11);
          StorageDead(_10);
          StorageLive(_13);
          StorageLive(_14);
          StorageLive(_15);
-         _15 = copy _1;
-         _14 = move _15 as u64 (IntToInt);
+         _15 = const 1_i64;
+         _14 = const 1_u64;
          StorageDead(_15);
-         _13 = opaque::<u64>(move _14) -> [return: bb4, unwind unreachable];
+         _13 = opaque::<u64>(const 1_u64) -> [return: bb4, unwind unreachable];
      }
  
      bb4: {
          StorageDead(_14);
          StorageDead(_13);
          StorageLive(_16);
          StorageLive(_17);
          StorageLive(_18);
-         _18 = copy _1;
-         _17 = move _18 as i8 (IntToInt);
+         _18 = const 1_i64;
+         _17 = const 1_i8;
          StorageDead(_18);
-         _16 = opaque::<i8>(move _17) -> [return: bb5, unwind unreachable];
+         _16 = opaque::<i8>(const 1_i8) -> [return: bb5, unwind unreachable];
      }
  
      bb5: {
          StorageDead(_17);
          StorageDead(_16);
          StorageLive(_19);
          StorageLive(_20);
          StorageLive(_21);
-         _21 = copy _1;
-         _20 = move _21 as i16 (IntToInt);
+         _21 = const 1_i64;
+         _20 = const 1_i16;
          StorageDead(_21);
-         _19 = opaque::<i16>(move _20) -> [return: bb6, unwind unreachable];
+         _19 = opaque::<i16>(const 1_i16) -> [return: bb6, unwind unreachable];
      }
  
      bb6: {
          StorageDead(_20);
          StorageDead(_19);
          StorageLive(_22);
          StorageLive(_23);
          StorageLive(_24);
-         _24 = copy _1;
-         _23 = move _24 as i32 (IntToInt);
+         _24 = const 1_i64;
+         _23 = const 1_i32;
          StorageDead(_24);
-         _22 = opaque::<i32>(move _23) -> [return: bb7, unwind unreachable];
+         _22 = opaque::<i32>(const 1_i32) -> [return: bb7, unwind unreachable];
      }
  
      bb7: {
          StorageDead(_23);
          StorageDead(_22);
          StorageLive(_25);
          StorageLive(_26);
-         _26 = copy _1;
-         _25 = opaque::<i64>(move _26) -> [return: bb8, unwind unreachable];
+         _26 = const 1_i64;
+         _25 = opaque::<i64>(const 1_i64) -> [return: bb8, unwind unreachable];
      }
  
      bb8: {
          StorageDead(_26);
          StorageDead(_25);
          StorageLive(_27);
          StorageLive(_28);
          StorageLive(_29);
-         _29 = copy _1;
-         _28 = move _29 as f32 (IntToFloat);
+         _29 = const 1_i64;
+         _28 = const 1f32;
          StorageDead(_29);
-         _27 = opaque::<f32>(move _28) -> [return: bb9, unwind unreachable];
+         _27 = opaque::<f32>(const 1f32) -> [return: bb9, unwind unreachable];
      }
  
      bb9: {
          StorageDead(_28);
          StorageDead(_27);
          StorageLive(_30);
          StorageLive(_31);
          StorageLive(_32);
-         _32 = copy _1;
-         _31 = move _32 as f64 (IntToFloat);
+         _32 = const 1_i64;
+         _31 = const 1f64;
          StorageDead(_32);
-         _30 = opaque::<f64>(move _31) -> [return: bb10, unwind unreachable];
+         _30 = opaque::<f64>(const 1f64) -> [return: bb10, unwind unreachable];
      }
  
      bb10: {
          StorageDead(_31);
          StorageDead(_30);
          StorageLive(_33);
          StorageLive(_34);
          StorageLive(_35);
-         _35 = copy _2;
-         _34 = move _35 as u8 (IntToInt);
+         _35 = const 1_u64;
+         _34 = const 1_u8;
          StorageDead(_35);
-         _33 = opaque::<u8>(move _34) -> [return: bb11, unwind unreachable];
+         _33 = opaque::<u8>(const 1_u8) -> [return: bb11, unwind unreachable];
      }
  
      bb11: {
          StorageDead(_34);
          StorageDead(_33);
          StorageLive(_36);
          StorageLive(_37);
          StorageLive(_38);
-         _38 = copy _2;
-         _37 = move _38 as u16 (IntToInt);
+         _38 = const 1_u64;
+         _37 = const 1_u16;
          StorageDead(_38);
-         _36 = opaque::<u16>(move _37) -> [return: bb12, unwind unreachable];
+         _36 = opaque::<u16>(const 1_u16) -> [return: bb12, unwind unreachable];
      }
  
      bb12: {
          StorageDead(_37);
          StorageDead(_36);
          StorageLive(_39);
          StorageLive(_40);
          StorageLive(_41);
-         _41 = copy _2;
-         _40 = move _41 as u32 (IntToInt);
+         _41 = const 1_u64;
+         _40 = const 1_u32;
          StorageDead(_41);
-         _39 = opaque::<u32>(move _40) -> [return: bb13, unwind unreachable];
+         _39 = opaque::<u32>(const 1_u32) -> [return: bb13, unwind unreachable];
      }
  
      bb13: {
          StorageDead(_40);
          StorageDead(_39);
          StorageLive(_42);
          StorageLive(_43);
-         _43 = copy _2;
-         _42 = opaque::<u64>(move _43) -> [return: bb14, unwind unreachable];
+         _43 = const 1_u64;
+         _42 = opaque::<u64>(const 1_u64) -> [return: bb14, unwind unreachable];
      }
  
      bb14: {
          StorageDead(_43);
          StorageDead(_42);
          StorageLive(_44);
          StorageLive(_45);
          StorageLive(_46);
-         _46 = copy _2;
-         _45 = move _46 as i8 (IntToInt);
+         _46 = const 1_u64;
+         _45 = const 1_i8;
          StorageDead(_46);
-         _44 = opaque::<i8>(move _45) -> [return: bb15, unwind unreachable];
+         _44 = opaque::<i8>(const 1_i8) -> [return: bb15, unwind unreachable];
      }
  
      bb15: {
          StorageDead(_45);
          StorageDead(_44);
          StorageLive(_47);
          StorageLive(_48);
          StorageLive(_49);
-         _49 = copy _2;
-         _48 = move _49 as i16 (IntToInt);
+         _49 = const 1_u64;
+         _48 = const 1_i16;
          StorageDead(_49);
-         _47 = opaque::<i16>(move _48) -> [return: bb16, unwind unreachable];
+         _47 = opaque::<i16>(const 1_i16) -> [return: bb16, unwind unreachable];
      }
  
      bb16: {
          StorageDead(_48);
          StorageDead(_47);
          StorageLive(_50);
          StorageLive(_51);
          StorageLive(_52);
-         _52 = copy _2;
-         _51 = move _52 as i32 (IntToInt);
+         _52 = const 1_u64;
+         _51 = const 1_i32;
          StorageDead(_52);
-         _50 = opaque::<i32>(move _51) -> [return: bb17, unwind unreachable];
+         _50 = opaque::<i32>(const 1_i32) -> [return: bb17, unwind unreachable];
      }
  
      bb17: {
          StorageDead(_51);
          StorageDead(_50);
          StorageLive(_53);
          StorageLive(_54);
          StorageLive(_55);
-         _55 = copy _2;
-         _54 = move _55 as i64 (IntToInt);
+         _55 = const 1_u64;
+         _54 = const 1_i64;
          StorageDead(_55);
-         _53 = opaque::<i64>(move _54) -> [return: bb18, unwind unreachable];
+         _53 = opaque::<i64>(const 1_i64) -> [return: bb18, unwind unreachable];
      }
  
      bb18: {
          StorageDead(_54);
          StorageDead(_53);
          StorageLive(_56);
          StorageLive(_57);
          StorageLive(_58);
-         _58 = copy _2;
-         _57 = move _58 as f32 (IntToFloat);
+         _58 = const 1_u64;
+         _57 = const 1f32;
          StorageDead(_58);
-         _56 = opaque::<f32>(move _57) -> [return: bb19, unwind unreachable];
+         _56 = opaque::<f32>(const 1f32) -> [return: bb19, unwind unreachable];
      }
  
      bb19: {
          StorageDead(_57);
          StorageDead(_56);
          StorageLive(_59);
          StorageLive(_60);
          StorageLive(_61);
-         _61 = copy _2;
-         _60 = move _61 as f64 (IntToFloat);
+         _61 = const 1_u64;
+         _60 = const 1f64;
          StorageDead(_61);
-         _59 = opaque::<f64>(move _60) -> [return: bb20, unwind unreachable];
+         _59 = opaque::<f64>(const 1f64) -> [return: bb20, unwind unreachable];
      }
  
      bb20: {
          StorageDead(_60);
          StorageDead(_59);
          StorageLive(_62);
          StorageLive(_63);
          StorageLive(_64);
-         _64 = copy _3;
-         _63 = move _64 as u8 (FloatToInt);
+         _64 = const 1f64;
+         _63 = const 1_u8;
          StorageDead(_64);
-         _62 = opaque::<u8>(move _63) -> [return: bb21, unwind unreachable];
+         _62 = opaque::<u8>(const 1_u8) -> [return: bb21, unwind unreachable];
      }
  
      bb21: {
          StorageDead(_63);
          StorageDead(_62);
          StorageLive(_65);
          StorageLive(_66);
          StorageLive(_67);
-         _67 = copy _3;
-         _66 = move _67 as u16 (FloatToInt);
+         _67 = const 1f64;
+         _66 = const 1_u16;
          StorageDead(_67);
-         _65 = opaque::<u16>(move _66) -> [return: bb22, unwind unreachable];
+         _65 = opaque::<u16>(const 1_u16) -> [return: bb22, unwind unreachable];
      }
  
      bb22: {
          StorageDead(_66);
          StorageDead(_65);
          StorageLive(_68);
          StorageLive(_69);
          StorageLive(_70);
-         _70 = copy _3;
-         _69 = move _70 as u32 (FloatToInt);
+         _70 = const 1f64;
+         _69 = const 1_u32;
          StorageDead(_70);
-         _68 = opaque::<u32>(move _69) -> [return: bb23, unwind unreachable];
+         _68 = opaque::<u32>(const 1_u32) -> [return: bb23, unwind unreachable];
      }
  
      bb23: {
          StorageDead(_69);
          StorageDead(_68);
          StorageLive(_71);
          StorageLive(_72);
          StorageLive(_73);
-         _73 = copy _3;
-         _72 = move _73 as u64 (FloatToInt);
+         _73 = const 1f64;
+         _72 = const 1_u64;
          StorageDead(_73);
-         _71 = opaque::<u64>(move _72) -> [return: bb24, unwind unreachable];
+         _71 = opaque::<u64>(const 1_u64) -> [return: bb24, unwind unreachable];
      }
  
      bb24: {
          StorageDead(_72);
          StorageDead(_71);
          StorageLive(_74);
          StorageLive(_75);
          StorageLive(_76);
-         _76 = copy _3;
-         _75 = move _76 as i8 (FloatToInt);
+         _76 = const 1f64;
+         _75 = const 1_i8;
          StorageDead(_76);
-         _74 = opaque::<i8>(move _75) -> [return: bb25, unwind unreachable];
+         _74 = opaque::<i8>(const 1_i8) -> [return: bb25, unwind unreachable];
      }
  
      bb25: {
          StorageDead(_75);
          StorageDead(_74);
          StorageLive(_77);
          StorageLive(_78);
          StorageLive(_79);
-         _79 = copy _3;
-         _78 = move _79 as i16 (FloatToInt);
+         _79 = const 1f64;
+         _78 = const 1_i16;
          StorageDead(_79);
-         _77 = opaque::<i16>(move _78) -> [return: bb26, unwind unreachable];
+         _77 = opaque::<i16>(const 1_i16) -> [return: bb26, unwind unreachable];
      }
  
      bb26: {
          StorageDead(_78);
          StorageDead(_77);
          StorageLive(_80);
          StorageLive(_81);
          StorageLive(_82);
-         _82 = copy _3;
-         _81 = move _82 as i32 (FloatToInt);
+         _82 = const 1f64;
+         _81 = const 1_i32;
          StorageDead(_82);
-         _80 = opaque::<i32>(move _81) -> [return: bb27, unwind unreachable];
+         _80 = opaque::<i32>(const 1_i32) -> [return: bb27, unwind unreachable];
      }
  
      bb27: {
          StorageDead(_81);
          StorageDead(_80);
          StorageLive(_83);
          StorageLive(_84);
          StorageLive(_85);
-         _85 = copy _3;
-         _84 = move _85 as i64 (FloatToInt);
+         _85 = const 1f64;
+         _84 = const 1_i64;
          StorageDead(_85);
-         _83 = opaque::<i64>(move _84) -> [return: bb28, unwind unreachable];
+         _83 = opaque::<i64>(const 1_i64) -> [return: bb28, unwind unreachable];
      }
  
      bb28: {
          StorageDead(_84);
          StorageDead(_83);
          StorageLive(_86);
          StorageLive(_87);
          StorageLive(_88);
-         _88 = copy _3;
-         _87 = move _88 as f32 (FloatToFloat);
+         _88 = const 1f64;
+         _87 = const 1f32;
          StorageDead(_88);
-         _86 = opaque::<f32>(move _87) -> [return: bb29, unwind unreachable];
+         _86 = opaque::<f32>(const 1f32) -> [return: bb29, unwind unreachable];
      }
  
      bb29: {
          StorageDead(_87);
          StorageDead(_86);
          StorageLive(_89);
          StorageLive(_90);
-         _90 = copy _3;
-         _89 = opaque::<f64>(move _90) -> [return: bb30, unwind unreachable];
+         _90 = const 1f64;
+         _89 = opaque::<f64>(const 1f64) -> [return: bb30, unwind unreachable];
      }
  
      bb30: {
          StorageDead(_90);
          StorageDead(_89);
          _0 = const ();
-         StorageDead(_3);
-         StorageDead(_2);
-         StorageDead(_1);
+         nop;
+         nop;
+         nop;
          return;
      }
  }