+/**
+ * Check, if a block strictly post dominates another block, i.e. a != b.
+ *
+ * @param a The potential post dominator block.
+ * @param b The potentially post dominated block.
+ *
+ * @return 1, if @p a strictly post dominates @p b, else 0.
+ */
+int block_strictly_postdominates(const ir_node *a, const ir_node *b);
+