Mercurial > hg > truffle

changeset 15170:ac66c9c60d02

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Merge.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Wed, 16 Apr 2014 19:07:21 +0200
parents 0ba58961ba14 (current diff) f4e31f06b019 (diff)
children 261a67e7a8f1
files graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractBlock.java graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractBlockBase.java graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractControlFlowGraph.java graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/BlockMap.java graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/Loop.java
diffstat 56 files changed, 381 insertions(+), 334 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.alloc/src/com/oracle/graal/alloc/ComputeBlockOrder.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.alloc/src/com/oracle/graal/alloc/ComputeBlockOrder.java	Wed Apr 16 19:07:21 2014 +0200
@@ -25,6 +25,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.nodes.cfg.*;
 
 /**
--- a/graal/com.oracle.graal.baseline/src/com/oracle/graal/baseline/BaselineBytecodeParser.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.baseline/src/com/oracle/graal/baseline/BaselineBytecodeParser.java	Wed Apr 16 19:07:21 2014 +0200
@@ -32,6 +32,7 @@
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.api.meta.ResolvedJavaType.Representation;
 import com.oracle.graal.bytecode.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.alloc.*;
 import com.oracle.graal.compiler.gen.*;
 import com.oracle.graal.compiler.target.*;
@@ -42,7 +43,7 @@
 import com.oracle.graal.java.BciBlockMapping.BciBlock;
 import com.oracle.graal.java.BciBlockMapping.LocalLiveness;
 import com.oracle.graal.lir.*;
-import com.oracle.graal.lir.StandardOp.*;
+import com.oracle.graal.lir.StandardOp.BlockEndOp;
 import com.oracle.graal.nodes.calc.*;
 import com.oracle.graal.nodes.calc.FloatConvertNode.FloatConvert;
 import com.oracle.graal.nodes.cfg.*;
--- a/graal/com.oracle.graal.baseline/src/com/oracle/graal/baseline/LIRBlock.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.baseline/src/com/oracle/graal/baseline/LIRBlock.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,7 +24,7 @@
 
 import java.util.*;
 
-import com.oracle.graal.nodes.cfg.*;
+import com.oracle.graal.cfg.*;
 
 public class LIRBlock extends AbstractBlockBase<LIRBlock> {
 
--- a/graal/com.oracle.graal.baseline/src/com/oracle/graal/baseline/LIRControlFlowGraph.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.baseline/src/com/oracle/graal/baseline/LIRControlFlowGraph.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,10 +24,10 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.java.*;
 import com.oracle.graal.java.BciBlockMapping.BciBlock;
-import com.oracle.graal.nodes.cfg.*;
 
 public class LIRControlFlowGraph implements AbstractControlFlowGraph<BciBlock> {
 
--- a/graal/com.oracle.graal.baseline/src/com/oracle/graal/baseline/LIRLoop.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.baseline/src/com/oracle/graal/baseline/LIRLoop.java	Wed Apr 16 19:07:21 2014 +0200
@@ -23,8 +23,8 @@
 
 package com.oracle.graal.baseline;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.java.BciBlockMapping.BciBlock;
-import com.oracle.graal.nodes.cfg.*;
 
 public class LIRLoop extends Loop<BciBlock> {
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.cfg/src/com/oracle/graal/cfg/AbstractBlock.java	Wed Apr 16 19:07:21 2014 +0200
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2014, 2014, 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.cfg;
+
+import java.util.*;
+
+public interface AbstractBlock<T extends AbstractBlock<T>> {
+
+    int getId();
+
+    Loop<T> getLoop();
+
+    int getLoopDepth();
+
+    boolean isLoopHeader();
+
+    boolean isLoopEnd();
+
+    boolean isExceptionEntry();
+
+    List<T> getPredecessors();
+
+    int getPredecessorCount();
+
+    List<T> getSuccessors();
+
+    int getSuccessorCount();
+
+    int getLinearScanNumber();
+
+    void setLinearScanNumber(int linearScanNumber);
+
+    boolean isAligned();
+
+    void setAlign(boolean align);
+
+    T getDominator();
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.cfg/src/com/oracle/graal/cfg/AbstractBlockBase.java	Wed Apr 16 19:07:21 2014 +0200
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2009, 2012, 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.cfg;
+
+import java.util.*;
+
+public abstract class AbstractBlockBase<T extends AbstractBlock<T>> implements AbstractBlock<T> {
+
+    protected int id;
+
+    protected List<T> predecessors;
+    protected List<T> successors;
+
+    private T dominator;
+
+    private boolean align;
+    private int linearScanNumber;
+
+    protected AbstractBlockBase() {
+        this.id = AbstractControlFlowGraph.BLOCK_ID_INITIAL;
+        this.linearScanNumber = -1;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public List<T> getPredecessors() {
+        return predecessors;
+    }
+
+    public void setPredecessors(List<T> predecessors) {
+        this.predecessors = predecessors;
+    }
+
+    public List<T> getSuccessors() {
+        return successors;
+    }
+
+    public void setSuccessors(List<T> successors) {
+        this.successors = successors;
+    }
+
+    public T getDominator() {
+        return dominator;
+    }
+
+    public void setDominator(T dominator) {
+        this.dominator = dominator;
+    }
+
+    @Override
+    public String toString() {
+        return "B" + id;
+    }
+
+    public int getPredecessorCount() {
+        return getPredecessors().size();
+    }
+
+    public int getSuccessorCount() {
+        return getSuccessors().size();
+    }
+
+    public int getLinearScanNumber() {
+        return linearScanNumber;
+    }
+
+    public void setLinearScanNumber(int linearScanNumber) {
+        this.linearScanNumber = linearScanNumber;
+    }
+
+    public boolean isAligned() {
+        return align;
+    }
+
+    public void setAlign(boolean align) {
+        this.align = align;
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.cfg/src/com/oracle/graal/cfg/AbstractControlFlowGraph.java	Wed Apr 16 19:07:21 2014 +0200
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2014, 2014, 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.cfg;
+
+import java.util.*;
+
+public interface AbstractControlFlowGraph<T extends AbstractBlock<T>> {
+
+    static final int BLOCK_ID_INITIAL = -1;
+    static final int BLOCK_ID_VISITED = -2;
+
+    T[] getBlocks();
+
+    Collection<Loop<T>> getLoops();
+
+    T getStartBlock();
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.cfg/src/com/oracle/graal/cfg/BlockMap.java	Wed Apr 16 19:07:21 2014 +0200
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2012, 2012, 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.cfg;
+
+public class BlockMap<T> {
+
+    private final T[] data;
+
+    @SuppressWarnings("unchecked")
+    public BlockMap(AbstractControlFlowGraph<?> cfg) {
+        data = (T[]) new Object[cfg.getBlocks().length];
+    }
+
+    public T get(AbstractBlock<?> block) {
+        return data[block.getId()];
+    }
+
+    public void put(AbstractBlock<?> block, T value) {
+        data[block.getId()] = value;
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.cfg/src/com/oracle/graal/cfg/Loop.java	Wed Apr 16 19:07:21 2014 +0200
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2012, 2012, 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.cfg;
+
+import java.util.*;
+
+public abstract class Loop<T extends AbstractBlock<T>> {
+
+    public final Loop<T> parent;
+    public final List<Loop<T>> children;
+
+    public final int depth;
+    public final int index;
+    public final T header;
+    public final List<T> blocks;
+    public final List<T> exits;
+
+    protected Loop(Loop<T> parent, int index, T header) {
+        this.parent = parent;
+        if (parent != null) {
+            this.depth = parent.depth + 1;
+            parent.children.add(this);
+        } else {
+            this.depth = 1;
+        }
+        this.index = index;
+        this.header = header;
+        this.blocks = new ArrayList<>();
+        this.children = new ArrayList<>();
+        this.exits = new ArrayList<>();
+    }
+
+    public abstract long numBackedges();
+
+    @Override
+    public String toString() {
+        return "loop " + index + " depth " + depth + (parent != null ? " outer " + parent.index : "");
+    }
+}
--- a/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/NestedLoopTest.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/NestedLoopTest.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import org.junit.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.nodes.*;
--- a/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/backend/AllocatorTest.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/backend/AllocatorTest.java	Wed Apr 16 19:07:21 2014 +0200
@@ -32,6 +32,7 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.code.CallingConvention.Type;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.*;
 import com.oracle.graal.compiler.gen.*;
 import com.oracle.graal.compiler.test.*;
@@ -41,7 +42,6 @@
 import com.oracle.graal.lir.LIRInstruction.ValueProcedure;
 import com.oracle.graal.lir.StandardOp.MoveOp;
 import com.oracle.graal.nodes.*;
-import com.oracle.graal.nodes.cfg.*;
 import com.oracle.graal.phases.*;
 import com.oracle.graal.phases.schedule.*;
 
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java	Wed Apr 16 19:07:21 2014 +0200
@@ -33,6 +33,7 @@
 import com.oracle.graal.api.code.CompilationResult.DataPatch;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.api.meta.ProfilingInfo.TriState;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.alloc.*;
 import com.oracle.graal.compiler.gen.*;
 import com.oracle.graal.compiler.target.*;
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/LinearScan.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/LinearScan.java	Wed Apr 16 19:07:21 2014 +0200
@@ -32,6 +32,7 @@
 import com.oracle.graal.alloc.*;
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.alloc.Interval.RegisterBinding;
 import com.oracle.graal.compiler.alloc.Interval.RegisterPriority;
 import com.oracle.graal.compiler.alloc.Interval.SpillState;
@@ -46,7 +47,6 @@
 import com.oracle.graal.lir.LIRInstruction.ValueProcedure;
 import com.oracle.graal.lir.StandardOp.MoveOp;
 import com.oracle.graal.nodes.*;
-import com.oracle.graal.nodes.cfg.*;
 import com.oracle.graal.phases.util.*;
 
 /**
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/LinearScanWalker.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/LinearScanWalker.java	Wed Apr 16 19:07:21 2014 +0200
@@ -30,6 +30,7 @@
 
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.alloc.Interval.RegisterBinding;
 import com.oracle.graal.compiler.alloc.Interval.RegisterPriority;
 import com.oracle.graal.compiler.alloc.Interval.SpillState;
@@ -37,7 +38,6 @@
 import com.oracle.graal.debug.*;
 import com.oracle.graal.lir.*;
 import com.oracle.graal.lir.StandardOp.MoveOp;
-import com.oracle.graal.nodes.cfg.*;
 import com.oracle.graal.phases.util.*;
 
 /**
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/RegisterVerifier.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/RegisterVerifier.java	Wed Apr 16 19:07:21 2014 +0200
@@ -28,13 +28,13 @@
 
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.lir.*;
 import com.oracle.graal.lir.LIRInstruction.OperandFlag;
 import com.oracle.graal.lir.LIRInstruction.OperandMode;
 import com.oracle.graal.lir.LIRInstruction.ValueProcedure;
-import com.oracle.graal.nodes.cfg.*;
 import com.oracle.graal.phases.util.*;
 
 /**
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/gen/LIRGenerator.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/gen/LIRGenerator.java	Wed Apr 16 19:07:21 2014 +0200
@@ -33,6 +33,7 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.lir.*;
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/gen/NodeLIRBuilder.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/gen/NodeLIRBuilder.java	Wed Apr 16 19:07:21 2014 +0200
@@ -31,6 +31,7 @@
 
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.gen.LIRGenerator.LoadConstant;
 import com.oracle.graal.compiler.target.*;
 import com.oracle.graal.debug.*;
--- a/graal/com.oracle.graal.hotspot.hsail/src/com/oracle/graal/hotspot/hsail/HSAILHotSpotBackend.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.hotspot.hsail/src/com/oracle/graal/hotspot/hsail/HSAILHotSpotBackend.java	Wed Apr 16 19:07:21 2014 +0200
@@ -27,6 +27,8 @@
 import static com.oracle.graal.api.code.ValueUtil.*;
 import static com.oracle.graal.api.meta.LocationIdentity.*;
 import static com.oracle.graal.compiler.GraalCompiler.*;
+import static com.oracle.graal.hotspot.hsail.HSAILHotSpotBackend.Options.*;
+import static com.oracle.graal.hotspot.hsail.replacements.HSAILNewObjectSnippets.Options.*;
 
 import java.lang.reflect.*;
 import java.util.*;
@@ -44,6 +46,7 @@
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.*;
 import com.oracle.graal.asm.hsail.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.gen.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.debug.Debug.Scope;
@@ -58,10 +61,9 @@
 import com.oracle.graal.lir.*;
 import com.oracle.graal.lir.asm.*;
 import com.oracle.graal.lir.hsail.*;
+import com.oracle.graal.lir.hsail.HSAILControlFlow.DeoptimizeOp;
 import com.oracle.graal.lir.hsail.HSAILMove.AtomicGetAndAddOp;
-import com.oracle.graal.lir.hsail.HSAILControlFlow.DeoptimizeOp;
 import com.oracle.graal.nodes.*;
-import com.oracle.graal.nodes.cfg.*;
 import com.oracle.graal.nodes.StructuredGraph.GuardsStage;
 import com.oracle.graal.nodes.calc.*;
 import com.oracle.graal.nodes.extended.*;
@@ -71,9 +73,6 @@
 import com.oracle.graal.phases.*;
 import com.oracle.graal.phases.tiers.*;
 
-import static com.oracle.graal.hotspot.hsail.HSAILHotSpotBackend.Options.*;
-import static com.oracle.graal.hotspot.hsail.replacements.HSAILNewObjectSnippets.Options.*;
-
 /**
  * HSAIL specific backend.
  */
--- a/graal/com.oracle.graal.hotspot.ptx/src/com/oracle/graal/hotspot/ptx/PTXHotSpotBackend.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.hotspot.ptx/src/com/oracle/graal/hotspot/ptx/PTXHotSpotBackend.java	Wed Apr 16 19:07:21 2014 +0200
@@ -36,6 +36,7 @@
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.*;
 import com.oracle.graal.asm.ptx.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.gen.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.debug.Debug.Scope;
@@ -52,7 +53,6 @@
 import com.oracle.graal.lir.ptx.*;
 import com.oracle.graal.lir.ptx.PTXMemOp.LoadReturnAddrOp;
 import com.oracle.graal.nodes.*;
-import com.oracle.graal.nodes.cfg.*;
 import com.oracle.graal.phases.*;
 import com.oracle.graal.phases.common.*;
 import com.oracle.graal.phases.tiers.*;
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/HotSpotBackend.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/HotSpotBackend.java	Wed Apr 16 19:07:21 2014 +0200
@@ -27,6 +27,7 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.code.stack.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.target.*;
 import com.oracle.graal.hotspot.meta.*;
 import com.oracle.graal.hotspot.stubs.*;
@@ -35,7 +36,6 @@
 import com.oracle.graal.lir.StandardOp.LabelOp;
 import com.oracle.graal.lir.StandardOp.SaveRegistersOp;
 import com.oracle.graal.nodes.*;
-import com.oracle.graal.nodes.cfg.*;
 import com.oracle.graal.phases.tiers.*;
 import com.oracle.graal.word.*;
 
--- a/graal/com.oracle.graal.java.decompiler/src/com/oracle/graal/java/decompiler/DecompilerLoopSimplify.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.java.decompiler/src/com/oracle/graal/java/decompiler/DecompilerLoopSimplify.java	Wed Apr 16 19:07:21 2014 +0200
@@ -25,6 +25,7 @@
 import java.io.*;
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.java.decompiler.block.*;
 import com.oracle.graal.nodes.cfg.*;
 
--- a/graal/com.oracle.graal.java/src/com/oracle/graal/java/BciBlockMapping.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.java/src/com/oracle/graal/java/BciBlockMapping.java	Wed Apr 16 19:07:21 2014 +0200
@@ -30,10 +30,10 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.bytecode.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.debug.Debug.Scope;
 import com.oracle.graal.nodes.*;
-import com.oracle.graal.nodes.cfg.*;
 
 /**
  * Builds a mapping between bytecodes and basic blocks and builds a conservative control flow graph
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/ControlFlowOptimizer.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/ControlFlowOptimizer.java	Wed Apr 16 19:07:21 2014 +0200
@@ -27,7 +27,7 @@
 import java.util.*;
 
 import com.oracle.graal.debug.*;
-import com.oracle.graal.nodes.cfg.*;
+import com.oracle.graal.cfg.*;
 
 /**
  * This class performs basic optimizations on the control flow graph after LIR generation.
@@ -49,7 +49,7 @@
     /**
      * Checks whether a block can be deleted. Only blocks with exactly one successor and an
      * unconditional branch to this successor are eligable.
-     * 
+     *
      * @param block the block checked for deletion
      * @return whether the block can be deleted
      */
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/EdgeMoveOptimizer.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/EdgeMoveOptimizer.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,8 +24,8 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.lir.StandardOp.MoveOp;
-import com.oracle.graal.nodes.cfg.*;
 
 /**
  * This class optimizes moves, particularly those that result from eliminating SSA form.
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIR.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIR.java	Wed Apr 16 19:07:21 2014 +0200
@@ -25,9 +25,9 @@
 import java.util.*;
 
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.lir.LIRInstruction.StateProcedure;
 import com.oracle.graal.lir.StandardOp.BlockEndOp;
-import com.oracle.graal.nodes.cfg.*;
 
 /**
  * This class implements the overall container for the LIR graph and directs its construction,
@@ -105,7 +105,7 @@
 
     /**
      * Gets the linear scan ordering of blocks as a list.
-     * 
+     *
      * @return the blocks in linear scan order
      */
     public List<? extends AbstractBlock<?>> linearScanOrder() {
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIRVerifier.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIRVerifier.java	Wed Apr 16 19:07:21 2014 +0200
@@ -29,12 +29,12 @@
 
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.lir.LIRInstruction.OperandFlag;
 import com.oracle.graal.lir.LIRInstruction.OperandMode;
 import com.oracle.graal.lir.LIRInstruction.ValueProcedure;
-import com.oracle.graal.nodes.cfg.*;
 
 public final class LIRVerifier {
 
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LabelRef.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LabelRef.java	Wed Apr 16 19:07:21 2014 +0200
@@ -23,6 +23,7 @@
 package com.oracle.graal.lir;
 
 import com.oracle.graal.asm.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.lir.StandardOp.BranchOp;
 import com.oracle.graal.lir.StandardOp.JumpOp;
 import com.oracle.graal.nodes.cfg.*;
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/NullCheckOptimizer.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/NullCheckOptimizer.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,9 +24,9 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.lir.StandardOp.ImplicitNullCheck;
 import com.oracle.graal.lir.StandardOp.NullCheck;
-import com.oracle.graal.nodes.cfg.*;
 
 public final class NullCheckOptimizer {
 
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/RedundantMoveElimination.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/RedundantMoveElimination.java	Wed Apr 16 19:07:21 2014 +0200
@@ -28,12 +28,12 @@
 
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.lir.LIRInstruction.OperandFlag;
 import com.oracle.graal.lir.LIRInstruction.OperandMode;
 import com.oracle.graal.lir.LIRInstruction.ValueProcedure;
 import com.oracle.graal.lir.StandardOp.MoveOp;
-import com.oracle.graal.nodes.cfg.*;
 
 /**
  * Removes move instructions, where the destination value is already in place.
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/StandardOp.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/StandardOp.java	Wed Apr 16 19:07:21 2014 +0200
@@ -29,9 +29,9 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.lir.asm.*;
-import com.oracle.graal.nodes.cfg.*;
 
 /**
  * A collection of machine-independent LIR operations, as well as interfaces to be implemented for
@@ -154,7 +154,7 @@
 
         /**
          * Prunes {@code doNotSave} from the registers saved by this operation.
-         * 
+         *
          * @param doNotSave registers that should not be saved by this operation
          * @return the number of registers pruned
          * @throws UnsupportedOperationException if removal is not {@linkplain #supportsRemove()
@@ -165,7 +165,7 @@
         /**
          * Gets a map from the saved registers saved by this operation to the frame slots in which
          * they are saved.
-         * 
+         *
          * @param frameMap used to {@linkplain FrameMap#indexForStackSlot(StackSlot) convert} a
          *            virtual slot to a frame slot index
          */
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/asm/CompilationResultBuilder.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/asm/CompilationResultBuilder.java	Wed Apr 16 19:07:21 2014 +0200
@@ -30,10 +30,10 @@
 import com.oracle.graal.api.code.CompilationResult.Data;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.lir.*;
-import com.oracle.graal.nodes.cfg.*;
 
 /**
  * Fills in a {@link CompilationResult} as its code is being assembled.
--- a/graal/com.oracle.graal.loop/src/com/oracle/graal/loop/LoopEx.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.loop/src/com/oracle/graal/loop/LoopEx.java	Wed Apr 16 19:07:21 2014 +0200
@@ -25,6 +25,7 @@
 import java.util.*;
 
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.graph.iterators.*;
--- a/graal/com.oracle.graal.loop/src/com/oracle/graal/loop/LoopFragmentWhole.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.loop/src/com/oracle/graal/loop/LoopFragmentWhole.java	Wed Apr 16 19:07:21 2014 +0200
@@ -22,6 +22,7 @@
  */
 package com.oracle.graal.loop;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.graph.Graph.DuplicationReplacement;
 import com.oracle.graal.graph.iterators.*;
--- a/graal/com.oracle.graal.loop/src/com/oracle/graal/loop/LoopsData.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.loop/src/com/oracle/graal/loop/LoopsData.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.debug.Debug.Scope;
 import com.oracle.graal.nodes.*;
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractBlock.java	Wed Apr 16 19:00:14 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2014, 2014, 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.nodes.cfg;
-
-import java.util.*;
-
-public interface AbstractBlock<T extends AbstractBlock<T>> {
-
-    int getId();
-
-    Loop<T> getLoop();
-
-    int getLoopDepth();
-
-    boolean isLoopHeader();
-
-    boolean isLoopEnd();
-
-    boolean isExceptionEntry();
-
-    List<T> getPredecessors();
-
-    int getPredecessorCount();
-
-    List<T> getSuccessors();
-
-    int getSuccessorCount();
-
-    int getLinearScanNumber();
-
-    void setLinearScanNumber(int linearScanNumber);
-
-    boolean isAligned();
-
-    void setAlign(boolean align);
-
-    T getDominator();
-}
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractBlockBase.java	Wed Apr 16 19:00:14 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,92 +0,0 @@
-/*
- * Copyright (c) 2009, 2012, 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.nodes.cfg;
-
-import java.util.*;
-
-public abstract class AbstractBlockBase<T extends AbstractBlock<T>> implements AbstractBlock<T> {
-
-    protected int id;
-
-    protected List<T> predecessors;
-    protected List<T> successors;
-
-    protected T dominator;
-
-    private boolean align;
-    private int linearScanNumber;
-
-    protected AbstractBlockBase() {
-        this.id = ControlFlowGraph.BLOCK_ID_INITIAL;
-        this.linearScanNumber = -1;
-    }
-
-    public int getId() {
-        return id;
-    }
-
-    public void setId(int id) {
-        this.id = id;
-    }
-
-    public List<T> getPredecessors() {
-        return predecessors;
-    }
-
-    public List<T> getSuccessors() {
-        return successors;
-    }
-
-    public T getDominator() {
-        return dominator;
-    }
-
-    @Override
-    public String toString() {
-        return "B" + id;
-    }
-
-    public int getPredecessorCount() {
-        return getPredecessors().size();
-    }
-
-    public int getSuccessorCount() {
-        return getSuccessors().size();
-    }
-
-    public int getLinearScanNumber() {
-        return linearScanNumber;
-    }
-
-    public void setLinearScanNumber(int linearScanNumber) {
-        this.linearScanNumber = linearScanNumber;
-    }
-
-    public boolean isAligned() {
-        return align;
-    }
-
-    public void setAlign(boolean align) {
-        this.align = align;
-    }
-}
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractControlFlowGraph.java	Wed Apr 16 19:00:14 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,34 +0,0 @@
-/*
- * Copyright (c) 2014, 2014, 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.nodes.cfg;
-
-import java.util.*;
-
-public interface AbstractControlFlowGraph<T extends AbstractBlock<T>> {
-
-    T[] getBlocks();
-
-    Collection<Loop<T>> getLoops();
-
-    T getStartBlock();
-}
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/Block.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/Block.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.java.*;
 
@@ -70,11 +71,11 @@
     }
 
     public Block getFirstPredecessor() {
-        return predecessors.get(0);
+        return getPredecessors().get(0);
     }
 
     public Block getFirstSuccessor() {
-        return successors.get(0);
+        return getSuccessors().get(0);
     }
 
     public Block getEarliestPostDominated() {
@@ -167,10 +168,10 @@
         if (block == this) {
             return true;
         }
-        if (dominator == null) {
+        if (getDominator() == null) {
             return false;
         }
-        return dominator.isDominatedBy(block);
+        return getDominator().isDominatedBy(block);
     }
 
 }
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/BlockMap.java	Wed Apr 16 19:00:14 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,41 +0,0 @@
-/*
- * Copyright (c) 2012, 2012, 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.nodes.cfg;
-
-public class BlockMap<T> {
-
-    private final T[] data;
-
-    @SuppressWarnings("unchecked")
-    public BlockMap(AbstractControlFlowGraph<?> cfg) {
-        data = (T[]) new Object[cfg.getBlocks().length];
-    }
-
-    public T get(AbstractBlock<?> block) {
-        return data[block.getId()];
-    }
-
-    public void put(AbstractBlock<?> block, T value) {
-        data[block.getId()] = value;
-    }
-}
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/BlocksToDoubles.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/BlocksToDoubles.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.util.*;
 
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/CFGVerifier.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/CFGVerifier.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,8 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
+
 public class CFGVerifier {
 
     public static boolean verify(ControlFlowGraph cfg) {
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/ControlFlowGraph.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/ControlFlowGraph.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.nodes.*;
@@ -117,9 +118,6 @@
         }
     }
 
-    protected static final int BLOCK_ID_INITIAL = -1;
-    protected static final int BLOCK_ID_VISITED = -2;
-
     private void identifyBlock(Block block) {
         Node cur = block.getBeginNode();
         Node last;
@@ -167,16 +165,16 @@
 
         do {
             Block block = stack.get(stack.size() - 1);
-            if (block.id == BLOCK_ID_INITIAL) {
+            if (block.getId() == BLOCK_ID_INITIAL) {
                 // First time we see this block: push all successors.
                 for (Node suxNode : block.getEndNode().cfgSuccessors()) {
                     Block suxBlock = blockFor(suxNode);
-                    if (suxBlock.id == BLOCK_ID_INITIAL) {
+                    if (suxBlock.getId() == BLOCK_ID_INITIAL) {
                         stack.add(suxBlock);
                     }
                 }
-                block.id = BLOCK_ID_VISITED;
-            } else if (block.id == BLOCK_ID_VISITED) {
+                block.setId(BLOCK_ID_VISITED);
+            } else if (block.getId() == BLOCK_ID_VISITED) {
                 // Second time we see this block: All successors have been processed, so add block
                 // to postorder list.
                 stack.remove(stack.size() - 1);
@@ -192,7 +190,7 @@
         reversePostOrder = new Block[numBlocks];
         for (int i = 0; i < numBlocks; i++) {
             Block block = postOrder.get(numBlocks - i - 1);
-            block.id = i;
+            block.setId(i);
             reversePostOrder[i] = block;
         }
     }
@@ -203,32 +201,32 @@
             List<Block> predecessors = new ArrayList<>(4);
             for (Node predNode : block.getBeginNode().cfgPredecessors()) {
                 Block predBlock = nodeToBlock.get(predNode);
-                if (predBlock.id >= 0) {
+                if (predBlock.getId() >= 0) {
                     predecessors.add(predBlock);
                 }
             }
             if (block.getBeginNode() instanceof LoopBeginNode) {
                 for (LoopEndNode predNode : ((LoopBeginNode) block.getBeginNode()).orderedLoopEnds()) {
                     Block predBlock = nodeToBlock.get(predNode);
-                    if (predBlock.id >= 0) {
+                    if (predBlock.getId() >= 0) {
                         predecessors.add(predBlock);
                     }
                 }
             }
-            block.predecessors = predecessors;
+            block.setPredecessors(predecessors);
 
             List<Block> successors = new ArrayList<>(4);
             for (Node suxNode : block.getEndNode().cfgSuccessors()) {
                 Block suxBlock = nodeToBlock.get(suxNode);
-                assert suxBlock.id >= 0;
+                assert suxBlock.getId() >= 0;
                 successors.add(suxBlock);
             }
             if (block.getEndNode() instanceof LoopEndNode) {
                 Block suxBlock = nodeToBlock.get(((LoopEndNode) block.getEndNode()).loopBegin());
-                assert suxBlock.id >= 0;
+                assert suxBlock.getId() >= 0;
                 successors.add(suxBlock);
             }
-            block.successors = successors;
+            block.setSuccessors(successors);
         }
     }
 
@@ -315,7 +313,7 @@
     }
 
     private static void setDominator(Block block, Block dominator) {
-        block.dominator = dominator;
+        block.setDominator(dominator);
         if (dominator.dominated == null) {
             dominator.dominated = new ArrayList<>();
         }
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/HIRLoop.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/HIRLoop.java	Wed Apr 16 19:07:21 2014 +0200
@@ -22,6 +22,7 @@
  */
 package com.oracle.graal.nodes.cfg;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.nodes.*;
 
 public class HIRLoop extends Loop<Block> {
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/Loop.java	Wed Apr 16 19:00:14 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,59 +0,0 @@
-/*
- * Copyright (c) 2012, 2012, 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.nodes.cfg;
-
-import java.util.*;
-
-public abstract class Loop<T extends AbstractBlock<T>> {
-
-    public final Loop<T> parent;
-    public final List<Loop<T>> children;
-
-    public final int depth;
-    public final int index;
-    public final T header;
-    public final List<T> blocks;
-    public final List<T> exits;
-
-    protected Loop(Loop<T> parent, int index, T header) {
-        this.parent = parent;
-        if (parent != null) {
-            this.depth = parent.depth + 1;
-            parent.children.add(this);
-        } else {
-            this.depth = 1;
-        }
-        this.index = index;
-        this.header = header;
-        this.blocks = new ArrayList<>();
-        this.children = new ArrayList<>();
-        this.exits = new ArrayList<>();
-    }
-
-    public abstract long numBackedges();
-
-    @Override
-    public String toString() {
-        return "loop " + index + " depth " + depth + (parent != null ? " outer " + parent.index : "");
-    }
-}
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/DeoptimizationGroupingPhase.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/DeoptimizationGroupingPhase.java	Wed Apr 16 19:07:21 2014 +0200
@@ -25,6 +25,7 @@
 import java.util.*;
 
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.cfg.*;
 import com.oracle.graal.nodes.type.*;
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/GuardLoweringPhase.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/GuardLoweringPhase.java	Wed Apr 16 19:07:21 2014 +0200
@@ -28,6 +28,7 @@
 import java.util.Map.Entry;
 
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.nodes.*;
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/ProfileCompiledMethodsPhase.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/ProfileCompiledMethodsPhase.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.calc.*;
--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/graph/ComputeInliningRelevanceClosure.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/graph/ComputeInliningRelevanceClosure.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.cfg.*;
--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/graph/ReentrantBlockIterator.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/graph/ReentrantBlockIterator.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.cfg.*;
 
--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java	Wed Apr 16 19:07:21 2014 +0200
@@ -29,6 +29,7 @@
 import java.util.*;
 
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.graph.Node.Verbosity;
@@ -649,7 +650,7 @@
          * implies that the inputs' blocks have a total ordering via their dominance relation. So in
          * order to find the earliest block placement for this node we need to find the input block
          * that is dominated by all other input blocks.
-         *
+         * 
          * While iterating over the inputs a set of dominator blocks of the current earliest
          * placement is maintained. When the block of an input is not within this set, it becomes
          * the current earliest placement and the list of dominator blocks is updated.
--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/util/GraphOrder.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/util/GraphOrder.java	Wed Apr 16 19:07:21 2014 +0200
@@ -24,6 +24,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.VirtualState.NodeClosure;
--- a/graal/com.oracle.graal.printer/src/com/oracle/graal/printer/BinaryGraphPrinter.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.printer/src/com/oracle/graal/printer/BinaryGraphPrinter.java	Wed Apr 16 19:07:21 2014 +0200
@@ -31,6 +31,7 @@
 import java.util.Map.Entry;
 
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.graph.NodeClass.Position;
 import com.oracle.graal.nodes.*;
--- a/graal/com.oracle.graal.printer/src/com/oracle/graal/printer/CFGPrinter.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.printer/src/com/oracle/graal/printer/CFGPrinter.java	Wed Apr 16 19:07:21 2014 +0200
@@ -29,6 +29,7 @@
 
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.compiler.alloc.*;
 import com.oracle.graal.compiler.alloc.Interval.UsePosList;
 import com.oracle.graal.compiler.gen.*;
--- a/graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/phases/ea/EffectsClosure.java	Wed Apr 16 19:00:14 2014 +0200
+++ b/graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/phases/ea/EffectsClosure.java	Wed Apr 16 19:07:21 2014 +0200
@@ -26,6 +26,7 @@
 
 import java.util.*;
 
+import com.oracle.graal.cfg.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
 import com.oracle.graal.nodes.*;
--- a/mx/projects	Wed Apr 16 19:00:14 2014 +0200
+++ b/mx/projects	Wed Apr 16 19:07:21 2014 +0200
@@ -283,7 +283,7 @@
 # graal.lir
 project@com.oracle.graal.lir@subDir=graal
 project@com.oracle.graal.lir@sourceDirs=src
-project@com.oracle.graal.lir@dependencies=com.oracle.graal.asm,com.oracle.graal.nodes
+project@com.oracle.graal.lir@dependencies=com.oracle.graal.nodes,com.oracle.graal.asm
 project@com.oracle.graal.lir@checkstyle=com.oracle.graal.graph
 project@com.oracle.graal.lir@javaCompliance=1.8
 project@com.oracle.graal.lir@workingSets=Graal,LIR
@@ -373,7 +373,7 @@
 # graal.nodes
 project@com.oracle.graal.nodes@subDir=graal
 project@com.oracle.graal.nodes@sourceDirs=src
-project@com.oracle.graal.nodes@dependencies=com.oracle.graal.graph,com.oracle.graal.api.replacements
+project@com.oracle.graal.nodes@dependencies=com.oracle.graal.graph,com.oracle.graal.api.replacements,com.oracle.graal.cfg
 project@com.oracle.graal.nodes@checkstyle=com.oracle.graal.graph
 project@com.oracle.graal.nodes@javaCompliance=1.8
 project@com.oracle.graal.nodes@annotationProcessors=com.oracle.graal.replacements.verifier
@@ -499,6 +499,14 @@
 project@com.oracle.graal.java@javaCompliance=1.8
 project@com.oracle.graal.java@workingSets=Graal,Java
 
+# graal.cfg
+project@com.oracle.graal.cfg@subDir=graal
+project@com.oracle.graal.cfg@sourceDirs=src
+project@com.oracle.graal.cfg@dependencies=
+project@com.oracle.graal.cfg@checkstyle=com.oracle.graal.graph
+project@com.oracle.graal.cfg@javaCompliance=1.8
+project@com.oracle.graal.cfg@workingSets=Graal,Java
+
 # graal.baseline
 project@com.oracle.graal.baseline@subDir=graal
 project@com.oracle.graal.baseline@sourceDirs=src