1 files changed, 27 insertions, 0 deletions
diff --git a/tests/mir-opt/const_prop/mutable_variable.main.GVN.diff b/tests/mir-opt/const_prop/mutable_variable.main.GVN.diff
new file mode 100644
index 00000000000..11464e32400
--- /dev/null
+++ b/tests/mir-opt/const_prop/mutable_variable.main.GVN.diff
@@ -0,0 +1,27 @@
+- // MIR for `main` before GVN
++ // MIR for `main` after GVN
+  
+  fn main() -> () {
+      let mut _0: ();
+      let mut _1: i32;
+      scope 1 {
+          debug x => _1;
+          let _2: i32;
+          scope 2 {
+              debug y => _2;
+          }
+      }
+  
+      bb0: {
+          StorageLive(_1);
+          _1 = const 42_i32;
+          _1 = const 99_i32;
+          StorageLive(_2);
+          _2 = _1;
+          _0 = const ();
+          StorageDead(_2);
+          StorageDead(_1);
+          return;
+      }
+  }
+