-/**
- * clear all links, including the Phi list of blocks and Phi nodes.
- */
-static void clear_node_and_phis_links(ir_node *n, void *env) {
- (void) env;
-
- set_irn_link(n, NULL);
- if (is_Block(n))
- set_Block_phis(n, NULL);
- else if (is_Phi(n))
- set_Phi_next(n, NULL);
-}
-