# HG changeset patch
# User Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
# Date 1424894745 -3600
# Node ID ee2f430c2b1bc426346ed5e7c7105fe066b12ac0
# Parent  820c8ab479e592907795adfcb8c600d193234e01
Add unit test with artificially long node chain.

diff -r 820c8ab479e5 -r ee2f430c2b1b graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/LongNodeChainTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/LongNodeChainTest.java	Wed Feb 25 21:05:45 2015 +0100
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.graal.compiler.test;
+
+import org.junit.*;
+
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.nodes.*;
+import com.oracle.graal.nodes.StructuredGraph.AllowAssumptions;
+import com.oracle.graal.nodes.calc.*;
+import com.oracle.graal.phases.*;
+import com.oracle.graal.phases.common.*;
+import com.oracle.graal.phases.schedule.*;
+import com.oracle.graal.phases.schedule.SchedulePhase.SchedulingStrategy;
+import com.oracle.graal.phases.tiers.*;
+
+public class LongNodeChainTest extends GraalCompilerTest {
+
+    public static final int N = 100000;
+
+    @Ignore
+    @Test
+    public void testLongAddChain() {
+        HighTierContext context = new HighTierContext(getProviders(), null, getDefaultGraphBuilderSuite(), OptimisticOptimizations.ALL);
+        StructuredGraph graph = new StructuredGraph(AllowAssumptions.NO);
+        ValueNode constant = graph.unique(ConstantNode.forPrimitive(JavaConstant.INT_1));
+        ValueNode value = constant;
+        for (int i = 0; i < N; ++i) {
+            value = graph.unique(new AddNode(constant, value));
+        }
+        ReturnNode returnNode = graph.add(new ReturnNode(value));
+        graph.start().setNext(returnNode);
+
+        for (SchedulingStrategy s : SchedulingStrategy.values()) {
+            new SchedulePhase(s).apply(graph);
+        }
+
+        new CanonicalizerPhase(false).apply(graph, context);
+        JavaConstant asConstant = (JavaConstant) returnNode.result().asConstant();
+        Assert.assertEquals(N + 1, asConstant.asInt());
+    }
+}