+ case iro_Block:
+ /*
+ * Some ugliness here: Two Blocks having the same
+ * IJmp predecessor would be congruent, which of course is wrong.
+ * We fix it by never letting blocks be congruent
+ * which cannot be detected by combo either.
+ */
+ key.u.block = irn;
+ break;
+ case iro_Load:
+ key.mode = get_Load_mode(irn);
+ break;
+ case iro_Builtin:
+ key.u.intVal = get_Builtin_kind(irn);
+ break;