1 files changed, 23 insertions, 0 deletions
diff --git a/tests/mir-opt/const_prop/transmute.unreachable_ref.ConstProp.diff b/tests/mir-opt/const_prop/transmute.unreachable_ref.ConstProp.diff
new file mode 100644
index 000000000..ff95f2a0b
--- /dev/null
+++ b/tests/mir-opt/const_prop/transmute.unreachable_ref.ConstProp.diff
@@ -0,0 +1,23 @@
+- // MIR for `unreachable_ref` before ConstProp
++ // MIR for `unreachable_ref` after ConstProp
+  
+  fn unreachable_ref() -> ! {
+      let mut _0: !;                       // return place in scope 0 at $DIR/transmute.rs:+0:36: +0:37
+      let mut _1: !;                       // in scope 0 at $DIR/transmute.rs:+0:38: +3:2
+      let _2: &Never;                      // in scope 0 at $DIR/transmute.rs:+1:9: +1:10
+      let mut _3: !;                       // in scope 0 at $DIR/transmute.rs:+2:5: +2:16
+      scope 1 {
+          debug x => _2;                   // in scope 1 at $DIR/transmute.rs:+1:9: +1:10
+      }
+      scope 2 {
+      }
+  
+      bb0: {
+          StorageLive(_1);                 // scope 0 at $DIR/transmute.rs:+0:38: +3:2
+          StorageLive(_2);                 // scope 0 at $DIR/transmute.rs:+1:9: +1:10
+          _2 = const 1_usize as &Never (Transmute); // scope 2 at $DIR/transmute.rs:+1:30: +1:48
+          StorageLive(_3);                 // scope 1 at $DIR/transmute.rs:+2:5: +2:16
+          unreachable;                     // scope 1 at $DIR/transmute.rs:+2:11: +2:13
+      }
+  }
+