+
+/***********************************************************************
+ * INFO_TYPE - information node types
+ ***********************************************************************/
+
+typedef enum
+{
+ INF_OPTIMIZATION, /* structure contains optimization information */
+} INFO_TYPE;
+
+
+
+/***********************************************************************
+ * OPT_TYPE - optimization node types
+ ***********************************************************************/
+
+typedef enum
+{
+ OPT_BEGIN, /* mark beginning of optimization block */
+ OPT_END, /* mark ending of optimization block */
+} OPT_TYPE;
+
+
+