diff --git a/tool/mk_call_iseq_optimized.rb b/tool/mk_call_iseq_optimized.rb
index d99de0a46b..3d98a14755 100644
--- a/tool/mk_call_iseq_optimized.rb
+++ b/tool/mk_call_iseq_optimized.rb
@@ -1,72 +1,72 @@
-
-puts <<EOS
-#if 1 /* enable or disable this optimization */
-
-/* DO NOT EDIT THIS FILE DIRECTLY
- *
- * This file is enerated by tool/mkcall_iseq.rb
- */
-
-EOS
-
-P = (0..3)
-L = (1..6)
-
-def fname param, local
-  "vm_call_iseq_setup_normal_0start_#{param}params_#{local}locals"
-end
-    
-P.each{|param|
-  L.each{|local|
-    puts <<EOS
-static VALUE
-#{fname(param, local)}(rb_thread_t *th, rb_control_frame_t *cfp, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc)
-{
-    return vm_call_iseq_setup_normal(th, cfp, calling, ci, cc, 0, #{param}, #{local});
-}
-
-EOS
-    #
-  }
-}
-
-puts <<EOS
-/* vm_call_iseq_handlers[param][local] */
-static const vm_call_handler vm_call_iseq_handlers[][#{L.to_a.size}] = {
-#{P.map{|param| '{' + L.map{|local| fname(param, local)}.join(",\n ") + '}'}.join(",\n")}
-};
-
-static inline vm_call_handler
-vm_call_iseq_setup_func(const struct rb_call_info *ci, const int param_size, const int local_size)
-{
-    if (UNLIKELY(ci->flag & VM_CALL_TAILCALL)) {
-	return vm_call_iseq_setup_tailcall_0start;
-    }
-    else if (0) { /* to disable optimize */
-        return vm_call_iseq_setup_normal_0start;
-    }
-    else {
-	if (param_size <= #{P.end} &&
-	    local_size <= #{L.end}) {
-	    VM_ASSERT(local_size != 0);
-	    return vm_call_iseq_handlers[param_size][local_size-1];
-	}
-	return vm_call_iseq_setup_normal_0start;
-    }
-}
-
-#else
-
-
-static inline vm_call_handler
-vm_call_iseq_setup_func(const struct rb_call_info *ci, struct rb_call_cache *cc)
-{
-    if (UNLIKELY(ci->flag & VM_CALL_TAILCALL)) {
-	return vm_call_iseq_setup_tailcall_0start;
-    }
-    else {
-        return vm_call_iseq_setup_normal_0start;
-    }
-}
-#endif
-EOS
+
+puts <<EOS
+#if 1 /* enable or disable this optimization */
+
+/* DO NOT EDIT THIS FILE DIRECTLY
+ *
+ * This file is enerated by tool/mkcall_iseq.rb
+ */
+
+EOS
+
+P = (0..3)
+L = (1..6)
+
+def fname param, local
+  "vm_call_iseq_setup_normal_0start_#{param}params_#{local}locals"
+end
+    
+P.each{|param|
+  L.each{|local|
+    puts <<EOS
+static VALUE
+#{fname(param, local)}(rb_thread_t *th, rb_control_frame_t *cfp, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc)
+{
+    return vm_call_iseq_setup_normal(th, cfp, calling, ci, cc, 0, #{param}, #{local});
+}
+
+EOS
+    #
+  }
+}
+
+puts <<EOS
+/* vm_call_iseq_handlers[param][local] */
+static const vm_call_handler vm_call_iseq_handlers[][#{L.to_a.size}] = {
+#{P.map{|param| '{' + L.map{|local| fname(param, local)}.join(",\n ") + '}'}.join(",\n")}
+};
+
+static inline vm_call_handler
+vm_call_iseq_setup_func(const struct rb_call_info *ci, const int param_size, const int local_size)
+{
+    if (UNLIKELY(ci->flag & VM_CALL_TAILCALL)) {
+	return vm_call_iseq_setup_tailcall_0start;
+    }
+    else if (0) { /* to disable optimize */
+        return vm_call_iseq_setup_normal_0start;
+    }
+    else {
+	if (param_size <= #{P.end} &&
+	    local_size <= #{L.end}) {
+	    VM_ASSERT(local_size != 0);
+	    return vm_call_iseq_handlers[param_size][local_size-1];
+	}
+	return vm_call_iseq_setup_normal_0start;
+    }
+}
+
+#else
+
+
+static inline vm_call_handler
+vm_call_iseq_setup_func(const struct rb_call_info *ci, struct rb_call_cache *cc)
+{
+    if (UNLIKELY(ci->flag & VM_CALL_TAILCALL)) {
+	return vm_call_iseq_setup_tailcall_0start;
+    }
+    else {
+        return vm_call_iseq_setup_normal_0start;
+    }
+}
+#endif
+EOS