8038048: assert(null_obj->escape_state() == PointsToNode::NoEscape,etc) runThese -full

Summary: use correct set_escape_state() method.
Reviewed-by: kvn, iignatyev
Contributed-by: NRichard Reingruber <richard.reingruber@sap.com>

src/share/vm/opto/escape.cpp

@@ -710,7 +710,7 @@ void ConnectionGraph::add_final_edges(Node *n) {
         Node *val = n->in(MemNode::ValueIn);
         PointsToNode* ptn = ptnode_adr(val->_idx);
         assert(ptn != NULL, "node should be registered");
-        ptn->set_escape_state(PointsToNode::GlobalEscape);
+        set_escape_state(ptn, PointsToNode::GlobalEscape);
         // Add edge to object for unsafe access with offset.
         PointsToNode* adr_ptn = ptnode_adr(adr->_idx);
         assert(adr_ptn != NULL, "node should be registered");

test/compiler/EscapeAnalysis/TestUnsafePutAddressNullObjMustNotEscape.java

+/*
+ * Copyright 2014 SAP AG.  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.
+ */
+
+/**
+ * @test
+ * @bug 8038048
+ * @summary assert(null_obj->escape_state() == PointsToNode::NoEscape,etc)
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+DoEscapeAnalysis -XX:-TieredCompilation -Xbatch TestUnsafePutAddressNullObjMustNotEscape
+ * @author Richard Reingruber richard DOT reingruber AT sap DOT com
+ */
+
+import java.lang.reflect.Field;
+import sun.misc.Unsafe;
+
+public class TestUnsafePutAddressNullObjMustNotEscape {
+
+    public static Unsafe usafe;
+    public static long mem;
+    public static long checksum;
+
+    public static void main(String[] args) throws Exception {
+        System.out.println("EXECUTING test.");
+
+        {
+            System.out.println("Acquiring sun.misc.Unsafe.theUnsafe using reflection.");
+            getUnsafe();
+            System.out.println("Allocating raw memory.");
+            mem = (usafe.allocateMemory(1024) + 8L) & ~7L;
+            System.out.println("Triggering JIT compilation of the test method");
+            triggerJitCompilationOfTestMethod();
+        }
+
+        System.out.println("SUCCESSFULLY passed test.");
+    }
+
+    public static void triggerJitCompilationOfTestMethod() {
+        long sum = 0;
+        for (int ii = 50000; ii >= 0; ii--) {
+            sum = testMethod();
+        }
+        checksum = sum;
+    }
+
+    public static class IDGen {
+        private static long id;
+        public long nextId() {
+            return id++;
+        }
+    }
+
+    public static long testMethod() {
+        // dummy alloc to trigger escape analysis
+        IDGen gen = new IDGen();
+        // StoreP of null_obj to raw mem triggers assertion in escape analysis
+        usafe.putAddress(mem, 0L);
+        return gen.nextId();
+    }
+
+    private static void getUnsafe() throws Exception {
+        Field field = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+        field.setAccessible(true);
+        usafe = (sun.misc.Unsafe) field.get(null);
+    }
+}