X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firgmod.c;h=0a06562804b2c9222c7fec8f308a8600a47e2a2b;hb=20a054e20083e0b0e996aceabf561254c663277a;hp=3d6cd6dabf0142394b7472572e71ae1ece6bf142;hpb=1ec30d95387eb392ba5a1adc7958ebd91383d59c;p=libfirm

diff --git a/ir/ir/irgmod.c b/ir/ir/irgmod.c
index 3d6cd6dab..0a0656280 100644
--- a/ir/ir/irgmod.c
+++ b/ir/ir/irgmod.c
@@ -125,6 +125,7 @@ void exchange(ir_node *old, ir_node *nw) {
  */
 static void collect(ir_node *n, void *env) {
 	ir_node *pred;
+	(void) env;
 
 	if (is_Phi(n)) {
 		set_irn_link(n, get_irn_link(get_nodes_block(n)));
@@ -209,12 +210,21 @@ void part_block(ir_node *node) {
 	set_irn_link(new_block, phi);
 	set_irn_link(old_block, NULL);
 	while (phi) {
-		if(get_nodes_block(phi) == old_block);   /* @@@ inlinening chokes on phis that don't
-												 obey this condition.  How do they get into
-												 the list??? Example: InterfaceIII */
 		set_nodes_block(phi, new_block);
 		phi = get_irn_link(phi);
 	}
 
 	set_optimize(rem_opt);
 }
+
+/* kill a node by setting its predecessors to Bad and finally exchange the node by Bad itself. */
+void kill_node(ir_node *node) {
+	ir_graph *irg = get_irn_irg(node);
+	ir_node *bad = get_irg_bad(irg);
+	int i;
+
+	for (i = get_irn_arity(node) - 1; i >= -1; --i) {
+		set_irn_n(node, i, bad);
+	}
+	exchange(node, bad);
+}