# HG changeset patch
# User Bernhard Urban <bernhard.urban@jku.at>
# Date 1385664725 -3600
# Node ID 1b9aaf25c609a1b97681efc36711042ad84cce99
# Parent  f444a67ecbae031c29f28cda479e1ddbc1ceacca
virtualize(): check if stamp is null (GRAAL-609)

diff -r f444a67ecbae -r 1b9aaf25c609 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/GuardingPiNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/GuardingPiNode.java	Thu Nov 28 19:51:54 2013 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/GuardingPiNode.java	Thu Nov 28 19:52:05 2013 +0100
@@ -87,7 +87,7 @@
     @Override
     public void virtualize(VirtualizerTool tool) {
         State state = tool.getObjectState(object);
-        if (state != null && state.getState() == EscapeState.Virtual && ObjectStamp.typeOrNull(this).isAssignableFrom(state.getVirtualObject().type())) {
+        if (state != null && state.getState() == EscapeState.Virtual && ObjectStamp.typeOrNull(this) != null && ObjectStamp.typeOrNull(this).isAssignableFrom(state.getVirtualObject().type())) {
             tool.replaceWithVirtual(state.getVirtualObject());
         }
     }
diff -r f444a67ecbae -r 1b9aaf25c609 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/PiNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/PiNode.java	Thu Nov 28 19:51:54 2013 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/PiNode.java	Thu Nov 28 19:52:05 2013 +0100
@@ -77,7 +77,7 @@
     @Override
     public void virtualize(VirtualizerTool tool) {
         State state = tool.getObjectState(object);
-        if (state != null && state.getState() == EscapeState.Virtual && ObjectStamp.typeOrNull(this).isAssignableFrom(state.getVirtualObject().type())) {
+        if (state != null && state.getState() == EscapeState.Virtual && ObjectStamp.typeOrNull(this) != null && ObjectStamp.typeOrNull(this).isAssignableFrom(state.getVirtualObject().type())) {
             tool.replaceWithVirtual(state.getVirtualObject());
         }
     }
diff -r f444a67ecbae -r 1b9aaf25c609 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeCastNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeCastNode.java	Thu Nov 28 19:51:54 2013 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeCastNode.java	Thu Nov 28 19:52:05 2013 +0100
@@ -88,7 +88,7 @@
     @Override
     public void virtualize(VirtualizerTool tool) {
         State state = tool.getObjectState(object);
-        if (state != null && state.getState() == EscapeState.Virtual && ObjectStamp.typeOrNull(this).isAssignableFrom(state.getVirtualObject().type())) {
+        if (state != null && state.getState() == EscapeState.Virtual && ObjectStamp.typeOrNull(this) != null && ObjectStamp.typeOrNull(this).isAssignableFrom(state.getVirtualObject().type())) {
             tool.replaceWithVirtual(state.getVirtualObject());
         }
     }