1 files changed, 8 insertions, 0 deletions
diff --git a/vm.c b/vm.c
index 1c3e4d9d76..8f33a8952a 100644
--- a/vm.c
+++ b/vm.c
@@ -34,6 +34,8 @@ VALUE rb_cEnv;
 VALUE rb_mRubyVMFrozenCore;
 
 VALUE ruby_vm_global_state_version = 1;
+VALUE ruby_vm_const_missing_count = 0;
+
 char ruby_vm_redefined_flag[BOP_LAST_];
 
 rb_thread_t *ruby_current_thread = 0;
@@ -49,6 +51,12 @@ rb_vm_change_state(void)
     INC_VM_STATE_VERSION();
 }
 
+void
+rb_vm_inc_const_missing_count(void)
+{
+    ruby_vm_const_missing_count +=1;
+}
+
 /* control stack frame */
 
 static inline VALUE