src/test/mir-opt/const_prop/mutable_variable_unprop_assign.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/mutable_variable_unprop_assign.rs:+0:11: +0:11
   6       let _1: i32;                         // in scope 0 at $DIR/mutable_variable_unprop_assign.rs:+1:9: +1:10
   7       let mut _3: i32;                     // in scope 0 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12
   8       scope 1 {
   9           debug a => _1;                   // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:+1:9: +1:10
  10           let mut _2: (i32, i32);          // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
  11           let mut _6: i32;                 // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
  12           let mut _7: i32;                 // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
  13           scope 2 {
  14               debug x => (i32, i32){ .0 => _6, .1 => _7, }; // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
  15               let _4: i32;                 // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10
  16               scope 3 {
  17                   debug y => _4;           // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10
  18                   let _5: i32;             // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10
  19                   scope 4 {
  20                       debug z => _5;       // in scope 4 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10
  21                   }
  22               }
  23           }
  24       }
  25
  26       bb0: {
  27           StorageLive(_1);                 // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+1:9: +1:10
  28           _1 = foo() -> bb1;               // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+1:13: +1:18
  29                                            // mir::Constant
  30                                            // + span: $DIR/mutable_variable_unprop_assign.rs:6:13: 6:16
  31                                            // + literal: Const { ty: fn() -> i32 {foo}, val: Value(<ZST>) }
  32       }
  33
  34       bb1: {
  35           StorageLive(_6);                 // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
  36           StorageLive(_7);                 // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
  37           Deinit(_6);                      // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35
  38           Deinit(_7);                      // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35
  39           _6 = const 1_i32;                // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35
  40           _7 = const 2_i32;                // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35
  41           StorageLive(_3);                 // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12
  42           _3 = _1;                         // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12
  43           _7 = move _3;                    // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:5: +3:12
  44           StorageDead(_3);                 // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12
  45           StorageLive(_4);                 // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10
  46           _4 = _7;                         // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:13: +4:16
  47           StorageLive(_5);                 // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10
  48 -         _5 = _6;                         // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:13: +5:16
  49 +         _5 = const 1_i32;                // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:13: +5:16
  50           nop;                             // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+0:11: +6:2
  51           StorageDead(_5);                 // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
  52           StorageDead(_4);                 // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
  53           StorageDead(_6);                 // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
  54           StorageDead(_7);                 // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
  55           StorageDead(_1);                 // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
  56           return;                          // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+6:2: +6:2
  57       }
  58   }
  59