* insns.def: nobody set ic->ic_value.value to Qundef.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52368 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Fri Oct 30 06:20:40 2015  Koichi Sasada  <ko1@atdot.net>
+
+	* insns.def: nobody set ic->ic_value.value to Qundef.
+
 Fri Oct 30 06:15:50 2015  Koichi Sasada  <ko1@atdot.net>
 
 	* vm.c: add ifndef guard for VM_CHECK_MODE.

insns.def

@@ -1185,9 +1185,7 @@ setinlinecache
 (VALUE val)
 (VALUE val)
 {
-    if (ic->ic_value.value == Qundef) {
-	rb_iseq_add_mark_object(GET_ISEQ(), val);
-    }
+    VM_ASSERT(ic->ic_value.value != Qundef);
     ic->ic_value.value = val;
     ic->ic_serial = GET_GLOBAL_CONSTANT_STATE() - ruby_vm_const_missing_count;
     ic->ic_cref = rb_vm_get_cref(GET_EP());