2 files changed, 11 insertions, 0 deletions
diff --git a/benchmark/mjit_struct_aref.yml b/benchmark/mjit_struct_aref.yml
new file mode 100644
index 0000000000..bfba1323f2
--- /dev/null
+++ b/benchmark/mjit_struct_aref.yml
@@ -0,0 +1,10 @@
+type: lib/benchmark_driver/runner/mjit
+prelude: |
+  def mjit_struct_aref(struct)
+    struct.aa
+  end
+  struct = Struct.new(:a0, :a1, :a2, :a3, :a4, :a5, :a6, :a7, :a8, :a9, :aa).new
+
+benchmark: mjit_struct_aref(struct)
+
+loop_count: 40000000
diff --git a/struct.c b/struct.c
index 41349f71f5..9390602b26 100644
--- a/struct.c
+++ b/struct.c
@@ -324,6 +324,7 @@ static void
 define_aref_method(VALUE nstr, VALUE name, VALUE off)
 {
     const rb_iseq_t *iseq = rb_method_for_self_aref(name, off, &struct_aref_builtin);
+    iseq->body->builtin_inline_p = true;
 
     rb_add_method_iseq(nstr, SYM2ID(name), iseq, NULL, METHOD_VISI_PUBLIC);
 }