src/test/mir-opt/unreachable_asm_2.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_2.rs:10:11: 10:11
   6       let mut _1: std::option::Option<Empty>; // in scope 0 at $DIR/unreachable_asm_2.rs:11:23: 11:30
   7       let mut _2: isize;                   // in scope 0 at $DIR/unreachable_asm_2.rs:11:12: 11:20
   8       let _3: Empty;                       // in scope 0 at $DIR/unreachable_asm_2.rs:11:17: 11:19
   9       let _5: ();                          // in scope 0 at $DIR/unreachable_asm_2.rs:14:9: 22:10
  10       let mut _6: bool;                    // in scope 0 at $DIR/unreachable_asm_2.rs:14:12: 14:16
  11       let _7: ();                          // in scope 0 at $DIR/unreachable_asm_2.rs:16:13: 16:41
  12       let _8: ();                          // in scope 0 at $DIR/unreachable_asm_2.rs:20:13: 20:41
  13       let mut _9: !;                       // in scope 0 at $DIR/unreachable_asm_2.rs:24:9: 24:21
  14       scope 1 {
  15           debug _x => _3;                  // in scope 1 at $DIR/unreachable_asm_2.rs:11:17: 11:19
  16           let mut _4: i32;                 // in scope 1 at $DIR/unreachable_asm_2.rs:12:13: 12:19
  17           scope 2 {
  18               debug _y => _4;              // in scope 2 at $DIR/unreachable_asm_2.rs:12:13: 12:19
  19               scope 3 {
  20               }
  21               scope 4 {
  22               }
  23           }
  24       }
  25
  26       bb0: {
  27           StorageLive(_1);                 // scope 0 at $DIR/unreachable_asm_2.rs:11:23: 11:30
  28           _1 = empty() -> bb1;             // scope 0 at $DIR/unreachable_asm_2.rs:11:23: 11:30
  29                                            // mir::Constant
  30                                            // + span: $DIR/unreachable_asm_2.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_2.rs:11:12: 11:20
  36           switchInt(move _2) -> [1_isize: bb3, otherwise: bb2]; // scope 0 at $DIR/unreachable_asm_2.rs:11:12: 11:20
  37       }
  38
  39       bb2: {
  40           _0 = const ();                   // scope 0 at $DIR/unreachable_asm_2.rs:11:5: 25:6
  41           StorageDead(_1);                 // scope 0 at $DIR/unreachable_asm_2.rs:26:1: 26:2
  42           return;                          // scope 0 at $DIR/unreachable_asm_2.rs:26:2: 26:2
  43       }
  44
  45       bb3: {
  46           StorageLive(_3);                 // scope 0 at $DIR/unreachable_asm_2.rs:11:17: 11:19
  47           _3 = move ((_1 as Some).0: Empty); // scope 0 at $DIR/unreachable_asm_2.rs:11:17: 11:19
  48           StorageLive(_4);                 // scope 1 at $DIR/unreachable_asm_2.rs:12:13: 12:19
  49           StorageLive(_5);                 // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
  50           StorageLive(_6);                 // scope 2 at $DIR/unreachable_asm_2.rs:14:12: 14:16
  51           _6 = const true;                 // scope 2 at $DIR/unreachable_asm_2.rs:14:12: 14:16
  52           switchInt(_6) -> [false: bb4, otherwise: bb5]; // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
  53       }
  54
  55       bb4: {
  56           StorageLive(_8);                 // scope 2 at $DIR/unreachable_asm_2.rs:20:13: 20:41
  57           llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // scope 4 at $DIR/unreachable_asm_2.rs:20:22: 20:39
  58           _8 = const ();                   // scope 4 at $DIR/unreachable_asm_2.rs:20:13: 20:41
  59           StorageDead(_8);                 // scope 2 at $DIR/unreachable_asm_2.rs:20:40: 20:41
  60           _4 = const 42_i32;               // scope 2 at $DIR/unreachable_asm_2.rs:21:13: 21:20
  61           _5 = const ();                   // scope 2 at $DIR/unreachable_asm_2.rs:18:16: 22:10
  62 -         goto -> bb6;                     // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
  63 +         unreachable;                     // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
  64       }
  65
  66       bb5: {
  67           StorageLive(_7);                 // scope 2 at $DIR/unreachable_asm_2.rs:16:13: 16:41
  68           llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // scope 3 at $DIR/unreachable_asm_2.rs:16:22: 16:39
  69           _7 = const ();                   // scope 3 at $DIR/unreachable_asm_2.rs:16:13: 16:41
  70           StorageDead(_7);                 // scope 2 at $DIR/unreachable_asm_2.rs:16:40: 16:41
  71           _4 = const 21_i32;               // scope 2 at $DIR/unreachable_asm_2.rs:17:13: 17:20
  72           _5 = const ();                   // scope 2 at $DIR/unreachable_asm_2.rs:14:17: 18:10
  73 -         goto -> bb6;                     // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
  74 -     }
  75 -
  76 -     bb6: {
  77 -         StorageDead(_6);                 // scope 2 at $DIR/unreachable_asm_2.rs:22:9: 22:10
  78 -         StorageDead(_5);                 // scope 2 at $DIR/unreachable_asm_2.rs:22:9: 22:10
  79 -         StorageLive(_9);                 // scope 2 at $DIR/unreachable_asm_2.rs:24:9: 24:21
  80 -         unreachable;                     // scope 2 at $DIR/unreachable_asm_2.rs:24:15: 24:17
  81 +         unreachable;                     // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
  82       }
  83   }
  84