src/test/mir-opt/const_prop/bad_op_mod_by_zero/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/bad_op_mod_by_zero.rs:3:11: 3:11
   6       let _1: i32;                         // in scope 0 at $DIR/bad_op_mod_by_zero.rs:4:9: 4:10
   7       let mut _3: i32;                     // in scope 0 at $DIR/bad_op_mod_by_zero.rs:5:18: 5:19
   8       let mut _4: bool;                    // in scope 0 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
   9       let mut _5: bool;                    // in scope 0 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  10       let mut _6: bool;                    // in scope 0 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  11       let mut _7: bool;                    // in scope 0 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  12       scope 1 {
  13           debug y => _1;                   // in scope 1 at $DIR/bad_op_mod_by_zero.rs:4:9: 4:10
  14           let _2: i32;                     // in scope 1 at $DIR/bad_op_mod_by_zero.rs:5:9: 5:11
  15           scope 2 {
  16               debug _z => _2;              // in scope 2 at $DIR/bad_op_mod_by_zero.rs:5:9: 5:11
  17           }
  18       }
  19
  20       bb0: {
  21           StorageLive(_1);                 // scope 0 at $DIR/bad_op_mod_by_zero.rs:4:9: 4:10
  22           _1 = const 0_i32;                // scope 0 at $DIR/bad_op_mod_by_zero.rs:4:13: 4:14
  23                                            // ty::Const
  24                                            // + ty: i32
  25                                            // + val: Value(Scalar(0x00000000))
  26                                            // mir::Constant
  27                                            // + span: $DIR/bad_op_mod_by_zero.rs:4:13: 4:14
  28                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
  29           StorageLive(_2);                 // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:9: 5:11
  30           StorageLive(_3);                 // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:18: 5:19
  31 -         _3 = _1;                         // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:18: 5:19
  32 -         _4 = Eq(_3, const 0_i32);        // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  33 +         _3 = const 0_i32;                // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:18: 5:19
  34                                            // ty::Const
  35                                            // + ty: i32
  36                                            // + val: Value(Scalar(0x00000000))
  37                                            // mir::Constant
  38 -                                          // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  39 +                                          // + span: $DIR/bad_op_mod_by_zero.rs:5:18: 5:19
  40                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
  41 +         _4 = const true;                 // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  42 +                                          // ty::Const
  43 +                                          // + ty: bool
  44 +                                          // + val: Value(Scalar(0x01))
  45 +                                          // mir::Constant
  46 +                                          // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  47 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
  48           assert(!move _4, "attempt to calculate the remainder of {} with a divisor of zero", const 1_i32) -> bb1; // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  49                                            // ty::Const
  50                                            // + ty: i32
  51                                            // + val: Value(Scalar(0x00000001))
  52                                            // mir::Constant
  53                                            // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:15
  54                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
  55       }
  56
  57       bb1: {
  58 -         _5 = Eq(_3, const -1_i32);       // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  59 +         _5 = const false;                // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  60                                            // ty::Const
  61 -                                          // + ty: i32
  62 -                                          // + val: Value(Scalar(0xffffffff))
  63 +                                          // + ty: bool
  64 +                                          // + val: Value(Scalar(0x00))
  65                                            // mir::Constant
  66                                            // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  67 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0xffffffff)) }
  68 -         _6 = Eq(const 1_i32, const i32::MIN); // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  69 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
  70 +         _6 = const false;                // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  71                                            // ty::Const
  72 -                                          // + ty: i32
  73 -                                          // + val: Value(Scalar(0x00000001))
  74 +                                          // + ty: bool
  75 +                                          // + val: Value(Scalar(0x00))
  76                                            // mir::Constant
  77 -                                          // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:15
  78 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
  79 +                                          // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  80 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
  81 +         _7 = const false;                // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  82                                            // ty::Const
  83 -                                          // + ty: i32
  84 -                                          // + val: Value(Scalar(0x80000000))
  85 +                                          // + ty: bool
  86 +                                          // + val: Value(Scalar(0x00))
  87                                            // mir::Constant
  88                                            // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  89 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x80000000)) }
  90 -         _7 = BitAnd(move _5, move _6);   // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  91 -         assert(!move _7, "attempt to compute the remainder of `{} % {}` which would overflow", const 1_i32, _3) -> bb2; // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  92 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
  93 +         assert(!const false, "attempt to compute the remainder of `{} % {}` which would overflow", const 1_i32, _3) -> bb2; // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  94 +                                          // ty::Const
  95 +                                          // + ty: bool
  96 +                                          // + val: Value(Scalar(0x00))
  97 +                                          // mir::Constant
  98 +                                          // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
  99 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
 100                                            // ty::Const
 101                                            // + ty: i32
 102                                            // + val: Value(Scalar(0x00000001))
 103                                            // mir::Constant
 104                                            // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:15
 105                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
 106       }
 107
 108       bb2: {
 109           _2 = Rem(const 1_i32, move _3);  // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:14: 5:19
 110                                            // ty::Const
 111                                            // + ty: i32
 112                                            // + val: Value(Scalar(0x00000001))
 113                                            // mir::Constant
 114                                            // + span: $DIR/bad_op_mod_by_zero.rs:5:14: 5:15
 115                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
 116           StorageDead(_3);                 // scope 1 at $DIR/bad_op_mod_by_zero.rs:5:18: 5:19
 117           _0 = const ();                   // scope 0 at $DIR/bad_op_mod_by_zero.rs:3:11: 6:2
 118                                            // ty::Const
 119                                            // + ty: ()
 120                                            // + val: Value(Scalar(<ZST>))
 121                                            // mir::Constant
 122                                            // + span: $DIR/bad_op_mod_by_zero.rs:3:11: 6:2
 123                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
 124           StorageDead(_2);                 // scope 1 at $DIR/bad_op_mod_by_zero.rs:6:1: 6:2
 125           StorageDead(_1);                 // scope 0 at $DIR/bad_op_mod_by_zero.rs:6:1: 6:2
 126           return;                          // scope 0 at $DIR/bad_op_mod_by_zero.rs:6:2: 6:2
 127       }
 128   }
 129