1 files changed, 9 insertions, 0 deletions
diff --git a/test/ruby/test_zjit.rb b/test/ruby/test_zjit.rb
index 736c6306d1..e2a0120eb0 100644
--- a/test/ruby/test_zjit.rb
+++ b/test/ruby/test_zjit.rb
@@ -139,6 +139,15 @@ class TestZJIT < Test::Unit::TestCase
     }, insns: [:splatarray]
   end
 
+  def test_concattoarray
+    assert_compiles '[1, 2, 3]', %q{
+      def test(*a)
+        [1, 2, *a]
+      end
+      test 3
+    }, insns: [:concattoarray]
+  end
+
   def test_definedivar
     assert_compiles '[nil, "instance-variable", nil]', %q{
       def test