fix firm backend

[libfirm] / ir / be / beutil.c

diff --git a/ir/be/beutil.c b/ir/be/beutil.c
index 002c3ad..5e7f8a7 100644 (file)
--- a/ir/be/beutil.c
+++ b/ir/be/beutil.c
@@ -20,6 +20,7 @@
 #include "irgopt.h"
 #include "irtools.h"
 #include "irprintf.h"
+#include "iredges.h"
 
 #include "beutil.h"
 #include "besched_t.h"
@@ -193,17 +194,22 @@ unsigned get_num_reachable_nodes(ir_graph *irg) {
  * Sets all node inputs to BAD node.
  */
 void be_kill_node(ir_node *irn) {
-       int      i;
-       ir_graph *irg;
+       ir_graph *irg = get_irn_irg(irn);
 
-       if (is_Bad(irn))
-               return;
+       assert(!is_Bad(irn));
 
-       irg = get_irn_irg(irn);
+#ifdef DEBUG_libfirm
+       {
+       int i, first;
+       first = 0 - ! is_Block(irn);
 
-       for (i = get_irn_arity(irn) - 1; i >= 0; --i) {
+       for (i = get_irn_arity(irn) - 1; i >= first; --i) {
                set_irn_n(irn, i, get_irg_bad(irg));
        }
+       }
+#endif
+
+       edges_node_deleted(irn, irg);
 }
 
 /* FIXME: not used. can be deleted? */
@@ -225,3 +231,21 @@ ir_node *dom_up_search(pset *accept, ir_node *start_point_exclusive) {
        else
                return NULL; /* this was the start block and we did not find an acceptable irn */
 }
+
+/**
+ * Gets the Proj with number pn from irn.
+ */
+ir_node *be_get_Proj_for_pn(const ir_node *irn, long pn) {
+       const ir_edge_t *edge;
+       ir_node         *proj;
+       assert(get_irn_mode(irn) == mode_T && "need mode_T");
+
+       foreach_out_edge(irn, edge) {
+               proj = get_edge_src_irn(edge);
+
+               if (get_Proj_proj(proj) == pn)
+                       return proj;
+       }
+
+       return NULL;
+}