src/test/mir-opt/const_prop/repeat/32bit/rustc.main.ConstProp.diff

   1 - // MIR for `main` before ConstProp
   2 + // MIR for `main` after ConstProp
   3
   4   fn main() -> () {
   5       let mut _0: ();                      // return place in scope 0 at $DIR/repeat.rs:5:11: 5:11
   6       let _1: u32 as UserTypeProjection { base: UserType(0), projs: [] }; // in scope 0 at $DIR/repeat.rs:6:9: 6:10
   7       let mut _2: u32;                     // in scope 0 at $DIR/repeat.rs:6:18: 6:28
   8       let mut _3: [u32; 8];                // in scope 0 at $DIR/repeat.rs:6:18: 6:25
   9       let _4: usize;                       // in scope 0 at $DIR/repeat.rs:6:26: 6:27
  10       let mut _5: usize;                   // in scope 0 at $DIR/repeat.rs:6:18: 6:28
  11       let mut _6: bool;                    // in scope 0 at $DIR/repeat.rs:6:18: 6:28
  12       scope 1 {
  13           debug x => _1;                   // in scope 1 at $DIR/repeat.rs:6:9: 6:10
  14       }
  15
  16       bb0: {
  17           StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/repeat.rs:6:9: 6:10
  18           StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/repeat.rs:6:18: 6:28
  19           StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/repeat.rs:6:18: 6:25
  20           _3 = [const 42u32; 8];           // bb0[3]: scope 0 at $DIR/repeat.rs:6:18: 6:25
  21                                            // ty::Const
  22                                            // + ty: u32
  23                                            // + val: Value(Scalar(0x0000002a))
  24                                            // mir::Constant
  25                                            // + span: $DIR/repeat.rs:6:19: 6:21
  26                                            // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
  27           StorageLive(_4);                 // bb0[4]: scope 0 at $DIR/repeat.rs:6:26: 6:27
  28           _4 = const 2usize;               // bb0[5]: scope 0 at $DIR/repeat.rs:6:26: 6:27
  29                                            // ty::Const
  30                                            // + ty: usize
  31                                            // + val: Value(Scalar(0x00000002))
  32                                            // mir::Constant
  33                                            // + span: $DIR/repeat.rs:6:26: 6:27
  34                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000002)) }
  35           _5 = const 8usize;               // bb0[6]: scope 0 at $DIR/repeat.rs:6:18: 6:28
  36                                            // ty::Const
  37                                            // + ty: usize
  38                                            // + val: Value(Scalar(0x00000008))
  39                                            // mir::Constant
  40                                            // + span: $DIR/repeat.rs:6:18: 6:28
  41                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000008)) }
  42 -         _6 = Lt(_4, _5);                 // bb0[7]: scope 0 at $DIR/repeat.rs:6:18: 6:28
  43 -         assert(move _6, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // bb0[8]: scope 0 at $DIR/repeat.rs:6:18: 6:28
  44 +         _6 = const true;                 // bb0[7]: scope 0 at $DIR/repeat.rs:6:18: 6:28
  45 +                                          // ty::Const
  46 +                                          // + ty: bool
  47 +                                          // + val: Value(Scalar(0x01))
  48 +                                          // mir::Constant
  49 +                                          // + span: $DIR/repeat.rs:6:18: 6:28
  50 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
  51 +         assert(const true, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // bb0[8]: scope 0 at $DIR/repeat.rs:6:18: 6:28
  52 +                                          // ty::Const
  53 +                                          // + ty: bool
  54 +                                          // + val: Value(Scalar(0x01))
  55 +                                          // mir::Constant
  56 +                                          // + span: $DIR/repeat.rs:6:18: 6:28
  57 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
  58       }
  59
  60       bb1: {
  61 -         _2 = _3[_4];                     // bb1[0]: scope 0 at $DIR/repeat.rs:6:18: 6:28
  62 -         _1 = Add(move _2, const 0u32);   // bb1[1]: scope 0 at $DIR/repeat.rs:6:18: 6:32
  63 +         _2 = const 42u32;                // bb1[0]: scope 0 at $DIR/repeat.rs:6:18: 6:28
  64                                            // ty::Const
  65                                            // + ty: u32
  66 -                                          // + val: Value(Scalar(0x00000000))
  67 +                                          // + val: Value(Scalar(0x0000002a))
  68                                            // mir::Constant
  69 -                                          // + span: $DIR/repeat.rs:6:31: 6:32
  70 -                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000000)) }
  71 +                                          // + span: $DIR/repeat.rs:6:18: 6:28
  72 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
  73 +         _1 = const 42u32;                // bb1[1]: scope 0 at $DIR/repeat.rs:6:18: 6:32
  74 +                                          // ty::Const
  75 +                                          // + ty: u32
  76 +                                          // + val: Value(Scalar(0x0000002a))
  77 +                                          // mir::Constant
  78 +                                          // + span: $DIR/repeat.rs:6:18: 6:32
  79 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
  80           StorageDead(_2);                 // bb1[2]: scope 0 at $DIR/repeat.rs:6:31: 6:32
  81           StorageDead(_4);                 // bb1[3]: scope 0 at $DIR/repeat.rs:6:32: 6:33
  82           StorageDead(_3);                 // bb1[4]: scope 0 at $DIR/repeat.rs:6:32: 6:33
  83           _0 = const ();                   // bb1[5]: scope 0 at $DIR/repeat.rs:5:11: 7:2
  84                                            // ty::Const
  85                                            // + ty: ()
  86                                            // + val: Value(Scalar(<ZST>))
  87                                            // mir::Constant
  88                                            // + span: $DIR/repeat.rs:5:11: 7:2
  89                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
  90           StorageDead(_1);                 // bb1[6]: scope 0 at $DIR/repeat.rs:7:1: 7:2
  91           return;                          // bb1[7]: scope 0 at $DIR/repeat.rs:7:2: 7:2
  92       }
  93   }
  94