src/test/mir-opt/unreachable_asm.main.UnreachablePropagation.diff

   1 - // MIR for `main` before UnreachablePropagation
   2 + // MIR for `main` after UnreachablePropagation
   3
   4   fn main() -> () {
   5       let mut _0: ();                      // return place in scope 0 at $DIR/unreachable_asm.rs:10:11: 10:11
   6       let mut _1: std::option::Option<Empty>; // in scope 0 at $DIR/unreachable_asm.rs:11:23: 11:30
   7       let mut _2: isize;                   // in scope 0 at $DIR/unreachable_asm.rs:11:12: 11:20
   8       let _3: Empty;                       // in scope 0 at $DIR/unreachable_asm.rs:11:17: 11:19
   9       let _5: ();                          // in scope 0 at $DIR/unreachable_asm.rs:14:9: 18:10
  10       let mut _6: bool;                    // in scope 0 at $DIR/unreachable_asm.rs:14:12: 14:16
  11       let _7: ();                          // in scope 0 at $DIR/unreachable_asm.rs:21:9: 21:37
  12       let mut _8: !;                       // in scope 0 at $DIR/unreachable_asm.rs:22:9: 22:21
  13       scope 1 {
  14           debug _x => _3;                  // in scope 1 at $DIR/unreachable_asm.rs:11:17: 11:19
  15           let mut _4: i32;                 // in scope 1 at $DIR/unreachable_asm.rs:12:13: 12:19
  16           scope 2 {
  17               debug _y => _4;              // in scope 2 at $DIR/unreachable_asm.rs:12:13: 12:19
  18               scope 3 {
  19               }
  20           }
  21       }
  22
  23       bb0: {
  24           StorageLive(_1);                 // scope 0 at $DIR/unreachable_asm.rs:11:23: 11:30
  25           _1 = const empty() -> bb1;       // scope 0 at $DIR/unreachable_asm.rs:11:23: 11:30
  26                                            // ty::Const
  27                                            // + ty: fn() -> std::option::Option<Empty> {empty}
  28                                            // + val: Value(Scalar(<ZST>))
  29                                            // mir::Constant
  30                                            // + span: $DIR/unreachable_asm.rs:11:23: 11:28
  31                                            // + literal: Const { ty: fn() -> std::option::Option<Empty> {empty}, val: Value(Scalar(<ZST>)) }
  32       }
  33
  34       bb1: {
  35           _2 = discriminant(_1);           // scope 0 at $DIR/unreachable_asm.rs:11:12: 11:20
  36           switchInt(move _2) -> [1_isize: bb3, otherwise: bb2]; // scope 0 at $DIR/unreachable_asm.rs:11:12: 11:20
  37       }
  38
  39       bb2: {
  40           _0 = const ();                   // scope 0 at $DIR/unreachable_asm.rs:11:5: 23:6
  41                                            // ty::Const
  42                                            // + ty: ()
  43                                            // + val: Value(Scalar(<ZST>))
  44                                            // mir::Constant
  45                                            // + span: $DIR/unreachable_asm.rs:11:5: 23:6
  46                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
  47           StorageDead(_1);                 // scope 0 at $DIR/unreachable_asm.rs:24:1: 24:2
  48           return;                          // scope 0 at $DIR/unreachable_asm.rs:24:2: 24:2
  49       }
  50
  51       bb3: {
  52           StorageLive(_3);                 // scope 0 at $DIR/unreachable_asm.rs:11:17: 11:19
  53           _3 = move ((_1 as Some).0: Empty); // scope 0 at $DIR/unreachable_asm.rs:11:17: 11:19
  54           StorageLive(_4);                 // scope 1 at $DIR/unreachable_asm.rs:12:13: 12:19
  55           StorageLive(_5);                 // scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
  56           StorageLive(_6);                 // scope 2 at $DIR/unreachable_asm.rs:14:12: 14:16
  57           _6 = const true;                 // scope 2 at $DIR/unreachable_asm.rs:14:12: 14:16
  58                                            // ty::Const
  59                                            // + ty: bool
  60                                            // + val: Value(Scalar(0x01))
  61                                            // mir::Constant
  62                                            // + span: $DIR/unreachable_asm.rs:14:12: 14:16
  63                                            // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
  64           switchInt(_6) -> [false: bb4, otherwise: bb5]; // scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
  65       }
  66
  67       bb4: {
  68           _4 = const 42_i32;               // scope 2 at $DIR/unreachable_asm.rs:17:13: 17:20
  69                                            // ty::Const
  70                                            // + ty: i32
  71                                            // + val: Value(Scalar(0x0000002a))
  72                                            // mir::Constant
  73                                            // + span: $DIR/unreachable_asm.rs:17:18: 17:20
  74                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
  75           _5 = const ();                   // scope 2 at $DIR/unreachable_asm.rs:16:16: 18:10
  76                                            // ty::Const
  77                                            // + ty: ()
  78                                            // + val: Value(Scalar(<ZST>))
  79                                            // mir::Constant
  80                                            // + span: $DIR/unreachable_asm.rs:16:16: 18:10
  81                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
  82           goto -> bb6;                     // scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
  83       }
  84
  85       bb5: {
  86           _4 = const 21_i32;               // scope 2 at $DIR/unreachable_asm.rs:15:13: 15:20
  87                                            // ty::Const
  88                                            // + ty: i32
  89                                            // + val: Value(Scalar(0x00000015))
  90                                            // mir::Constant
  91                                            // + span: $DIR/unreachable_asm.rs:15:18: 15:20
  92                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000015)) }
  93           _5 = const ();                   // scope 2 at $DIR/unreachable_asm.rs:14:17: 16:10
  94                                            // ty::Const
  95                                            // + ty: ()
  96                                            // + val: Value(Scalar(<ZST>))
  97                                            // mir::Constant
  98                                            // + span: $DIR/unreachable_asm.rs:14:17: 16:10
  99                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
 100           goto -> bb6;                     // scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
 101       }
 102
 103       bb6: {
 104           StorageDead(_6);                 // scope 2 at $DIR/unreachable_asm.rs:18:9: 18:10
 105           StorageDead(_5);                 // scope 2 at $DIR/unreachable_asm.rs:18:9: 18:10
 106           StorageLive(_7);                 // scope 2 at $DIR/unreachable_asm.rs:21:9: 21:37
 107           llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // scope 3 at $DIR/unreachable_asm.rs:21:18: 21:35
 108           _7 = const ();                   // scope 3 at $DIR/unreachable_asm.rs:21:9: 21:37
 109                                            // ty::Const
 110                                            // + ty: ()
 111                                            // + val: Value(Scalar(<ZST>))
 112                                            // mir::Constant
 113                                            // + span: $DIR/unreachable_asm.rs:21:9: 21:37
 114                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
 115           StorageDead(_7);                 // scope 2 at $DIR/unreachable_asm.rs:21:36: 21:37
 116           StorageLive(_8);                 // scope 2 at $DIR/unreachable_asm.rs:22:9: 22:21
 117           unreachable;                     // scope 2 at $DIR/unreachable_asm.rs:22:15: 22:17
 118       }
 119   }
 120