X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firgopt.h;h=f64f7ecca7150cc5615156d9e9b244aecbb61f51;hb=5f8ddee6b08c8040c0a304a347d65045c1141d52;hp=b444fde8d4ed16ddb066334547f52bae8a320c05;hpb=45a9397451c25fb527c32c87f64ffefc72015c81;p=libfirm

diff --git a/ir/ir/irgopt.h b/ir/ir/irgopt.h
index b444fde8d..f64f7ecca 100644
--- a/ir/ir/irgopt.h
+++ b/ir/ir/irgopt.h
@@ -1,11 +1,9 @@
-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
+/* Copyright (C) 1998 - 2001 by Universitaet Karlsruhe
 ** All rights reserved.
 **
-** Author: Christian Schaefer
+** Author: Christian Schaefer, Goetz Lindenmaier
 **
-**  dead node elemination
-**  walks one time through the whole graph and copies it into another graph,
-**  so unreachable nodes will be lost.
+** Optimizations for a whole ir graph, i.e., a procedure.
 */
 
 # ifndef _IRGOPT_H_
@@ -13,10 +11,14 @@
 
 # include "irgraph.h"
 
-/* Applies local optimizations (see iropt) to all nodes in the graph. */
+/* Applies local optimizations (see iropt.h) to all nodes in the graph. */
 void local_optimize_graph (ir_graph *irg);
 
-/* Performs dead node elimination by copying the ir graph to a new obstack. */
-void dead_node_elemination(ir_graph *irg);
+/* Performs dead node elimination by copying the ir graph to a new obstack.
+   Further removes Bad predecesors from Blocks and the corresponding
+   inputs to Phi nodes.
+   Attention: the numbers assigned to nodes if the library is compiled for
+   development/debugging are not conserved by copying. */
+void dead_node_elimination(ir_graph *irg);
 
 # endif /* _IRGOPT_H_ */