# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1423575396 -3600
# Node ID 5b75ec42c975bee797579c5703f38b6af6a335c9
# Parent  c75f5c9c8b6b082f6f1ffa57aa7cf10155f84116
added graph builder plugin for Class.cast()

diff -r c75f5c9c8b6b -r 5b75ec42c975 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotGraphBuilderPluginsProvider.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotGraphBuilderPluginsProvider.java	Tue Feb 10 14:14:53 2015 +0100
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotGraphBuilderPluginsProvider.java	Tue Feb 10 14:36:36 2015 +0100
@@ -61,6 +61,20 @@
             }
         });
 
+        // Class.class
+        r = new Registration(plugins, metaAccess, Class.class);
+        r.register2("cast", Receiver.class, Object.class, new InvocationPlugin() {
+            public boolean apply(GraphBuilderContext builder, ValueNode rcvr, ValueNode object) {
+                if (rcvr.isConstant() && !rcvr.isNullConstant() && object.isConstant()) {
+                    ResolvedJavaType type = builder.getConstantReflection().asJavaType(rcvr.asConstant());
+                    if (type != null && !type.isPrimitive() && type.isInstance(object.asJavaConstant())) {
+                        builder.push(Kind.Object, object);
+                        return true;
+                    }
+                }
+                return false;
+            }
+        });
         // StableOptionValue.class
         r = new Registration(plugins, metaAccess, StableOptionValue.class);
         r.register1("getValue", Receiver.class, new InvocationPlugin() {