# HG changeset patch
# User Lukas Stadler <lukas.stadler@jku.at>
# Date 1376651756 -7200
# Node ID a13945105e82c319df578a0a2264f4b6e9229ddb
# Parent  8185c119d731d9cc848348305e6636d735f13b57
small JavaDoc

diff -r 8185c119d731 -r a13945105e82 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/spi/ValueProxy.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/spi/ValueProxy.java	Fri Aug 16 13:15:42 2013 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/spi/ValueProxy.java	Fri Aug 16 13:15:56 2013 +0200
@@ -24,6 +24,12 @@
 
 import com.oracle.graal.nodes.*;
 
+/**
+ * This interface marks nodes whose result is the same as one of their inputs. Such nodes are used
+ * to add type information, to introduce scheduling restrictions, etc.
+ * 
+ * For some algorithms it is necessary or advantageous to see through these proxies.
+ */
 public interface ValueProxy {
 
     ValueNode getOriginalValue();