# HG changeset patch
# User Gilles Duboscq <duboscq@ssw.jku.at>
# Date 1382528510 -7200
# Node ID 97f56b7e978e824549e1e8ddc923416ba66b4eae
# Parent  ae36dae46d50391e7c27e78869819b2ded1857dd
Fix NPE in OptimizeGuardAnchors

diff -r ae36dae46d50 -r 97f56b7e978e graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/OptimizeGuardAnchors.java
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/OptimizeGuardAnchors.java	Wed Oct 23 11:49:01 2013 +0200
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/OptimizeGuardAnchors.java	Wed Oct 23 13:41:50 2013 +0200
@@ -89,10 +89,9 @@
         int successorCount = controlSplit.successors().count();
         List<GuardNode> otherGuards = new ArrayList<>(successorCount - 1);
         for (GuardNode guard : successor.guards().snapshot()) {
-            if (guard.condition().usages().count() < successorCount) {
+            if (guard.isDeleted() || guard.condition().usages().count() < successorCount) {
                 continue;
             }
-
             for (GuardNode conditonGuard : guard.condition().usages().filter(GuardNode.class)) {
                 if (conditonGuard != guard) {
                     GuardingNode conditonGuardAnchor = conditonGuard.getGuard();