1 files changed, 21 insertions, 0 deletions
diff --git a/test/ruby/test_jit.rb b/test/ruby/test_jit.rb
index 888290faa9..5c31b504c4 100644
--- a/test/ruby/test_jit.rb
+++ b/test/ruby/test_jit.rb
@@ -669,6 +669,27 @@ class TestJIT < Test::Unit::TestCase
     end;
   end
 
+  def test_inlined_undefined_ivar
+    assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: "bbb", success_count: 2, min_calls: 3)
+    begin;
+      class Foo
+        def initialize
+          @a = :a
+        end
+
+        def bar
+          if @b.nil?
+            @b = :b
+          end
+        end
+      end
+
+      print(Foo.new.bar)
+      print(Foo.new.bar)
+      print(Foo.new.bar)
+    end;
+  end
+
   def test_attr_reader
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: "4nil\nnil\n6", success_count: 2, min_calls: 2)
     begin;