14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 
  26 package org.graalvm.compiler.hotspot.phases;
  27 
  28 import java.util.Iterator;
  29 
  30 import org.graalvm.compiler.debug.GraalError;
  31 import org.graalvm.compiler.graph.Node;
  32 import org.graalvm.compiler.graph.NodeFlood;
  33 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  34 import org.graalvm.compiler.hotspot.nodes.ArrayRangeWriteBarrier;
  35 import org.graalvm.compiler.hotspot.nodes.G1PostWriteBarrier;
  36 import org.graalvm.compiler.hotspot.nodes.ObjectWriteBarrier;
  37 import org.graalvm.compiler.hotspot.nodes.SerialWriteBarrier;
  38 import org.graalvm.compiler.nodeinfo.Verbosity;
  39 import org.graalvm.compiler.nodes.DeoptimizingNode;
  40 import org.graalvm.compiler.nodes.FixedWithNextNode;
  41 import org.graalvm.compiler.nodes.LoopBeginNode;
  42 import org.graalvm.compiler.nodes.StructuredGraph;
  43 import org.graalvm.compiler.nodes.ValueNode;
  44 import org.graalvm.compiler.nodes.extended.ArrayRangeWrite;
  45 import org.graalvm.compiler.nodes.java.LoweredAtomicReadAndWriteNode;
  46 import org.graalvm.compiler.nodes.java.LogicCompareAndSwapNode;
  47 import org.graalvm.compiler.nodes.memory.FixedAccessNode;
  48 import org.graalvm.compiler.nodes.memory.HeapAccess;
  49 import org.graalvm.compiler.nodes.memory.HeapAccess.BarrierType;
  50 import org.graalvm.compiler.nodes.memory.ReadNode;
  51 import org.graalvm.compiler.nodes.memory.WriteNode;
  52 import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode;
  53 import org.graalvm.compiler.nodes.type.StampTool;
  54 import org.graalvm.compiler.nodes.util.GraphUtil;
  55 import org.graalvm.compiler.phases.Phase;
  56 
  57 /**

  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 
  26 package org.graalvm.compiler.hotspot.phases;
  27 
  28 import java.util.Iterator;
  29 
  30 import org.graalvm.compiler.debug.GraalError;
  31 import org.graalvm.compiler.graph.Node;
  32 import org.graalvm.compiler.graph.NodeFlood;
  33 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  34 import org.graalvm.compiler.hotspot.gc.g1.G1PostWriteBarrier;
  35 import org.graalvm.compiler.hotspot.gc.shared.ArrayRangeWriteBarrier;
  36 import org.graalvm.compiler.hotspot.gc.shared.ObjectWriteBarrier;
  37 import org.graalvm.compiler.hotspot.gc.shared.SerialWriteBarrier;
  38 import org.graalvm.compiler.nodeinfo.Verbosity;
  39 import org.graalvm.compiler.nodes.DeoptimizingNode;
  40 import org.graalvm.compiler.nodes.FixedWithNextNode;
  41 import org.graalvm.compiler.nodes.LoopBeginNode;
  42 import org.graalvm.compiler.nodes.StructuredGraph;
  43 import org.graalvm.compiler.nodes.ValueNode;
  44 import org.graalvm.compiler.nodes.extended.ArrayRangeWrite;
  45 import org.graalvm.compiler.nodes.java.LoweredAtomicReadAndWriteNode;
  46 import org.graalvm.compiler.nodes.java.LogicCompareAndSwapNode;
  47 import org.graalvm.compiler.nodes.memory.FixedAccessNode;
  48 import org.graalvm.compiler.nodes.memory.HeapAccess;
  49 import org.graalvm.compiler.nodes.memory.HeapAccess.BarrierType;
  50 import org.graalvm.compiler.nodes.memory.ReadNode;
  51 import org.graalvm.compiler.nodes.memory.WriteNode;
  52 import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode;
  53 import org.graalvm.compiler.nodes.type.StampTool;
  54 import org.graalvm.compiler.nodes.util.GraphUtil;
  55 import org.graalvm.compiler.phases.Phase;
  56 
  57 /**