# HG changeset patch
# User Roland Schatz <roland.schatz@oracle.com>
# Date 1425035337 -3600
# Node ID d5042bcd422ff79f0fdd42e7a3edf935c1eb3ce2
# Parent  382e4f844d9658fb22d452d21e94460249507d53
Remove isCommutative method from BinaryCommutative interface.

diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.graph/src/com/oracle/graal/graph/spi/Canonicalizable.java
--- a/graal/com.oracle.graal.graph/src/com/oracle/graal/graph/spi/Canonicalizable.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.graph/src/com/oracle/graal/graph/spi/Canonicalizable.java	Fri Feb 27 12:08:57 2015 +0100
@@ -131,17 +131,12 @@
 
     /**
      * This sub-interface of {@link Canonicalizable.Binary} is for nodes with two inputs where the
-     * operation may be commutative. It is used to improve GVN by trying to merge nodes with the
-     * same inputs in different order.
+     * operation is commutative. It is used to improve GVN by trying to merge nodes with the same
+     * inputs in different order.
      */
     public interface BinaryCommutative<T extends Node> extends Binary<T> {
 
         /**
-         * Test whether this node is commutative.
-         */
-        boolean isCommutative();
-
-        /**
          * Ensure a canonical ordering of inputs for commutative nodes to improve GVN results. Order
          * the inputs by increasing {@link Node#id} and call {@link Graph#findDuplicate(Node)} on
          * the node if it's currently in a graph. It's assumed that if there was a constant on the
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/BinaryOpLogicNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/BinaryOpLogicNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/BinaryOpLogicNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -23,12 +23,12 @@
 package com.oracle.graal.nodes;
 
 import com.oracle.graal.graph.*;
-import com.oracle.graal.graph.spi.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.nodeinfo.*;
 import com.oracle.graal.nodes.spi.*;
 
 @NodeInfo
-public abstract class BinaryOpLogicNode extends LogicNode implements LIRLowerable, Canonicalizable.BinaryCommutative<ValueNode> {
+public abstract class BinaryOpLogicNode extends LogicNode implements LIRLowerable {
 
     public static final NodeClass<BinaryOpLogicNode> TYPE = NodeClass.create(BinaryOpLogicNode.class);
     @Input protected ValueNode x;
@@ -68,6 +68,7 @@
      */
     @SuppressWarnings("deprecation")
     public LogicNode maybeCommuteInputs() {
+        assert this instanceof BinaryCommutative;
         if (x.getId() > y.getId()) {
             ValueNode tmp = x;
             x = y;
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/AddNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/AddNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/AddNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -27,6 +27,7 @@
 import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp;
 import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Add;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.lir.gen.*;
 import com.oracle.graal.nodeinfo.*;
@@ -34,7 +35,7 @@
 import com.oracle.graal.nodes.spi.*;
 
 @NodeInfo(shortName = "+")
-public class AddNode extends BinaryArithmeticNode<Add> implements NarrowableArithmeticNode {
+public class AddNode extends BinaryArithmeticNode<Add> implements NarrowableArithmeticNode, BinaryCommutative<ValueNode> {
 
     public static final NodeClass<AddNode> TYPE = NodeClass.create(AddNode.class);
 
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/AndNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/AndNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/AndNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -25,9 +25,10 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.compiler.common.type.*;
-import com.oracle.graal.compiler.common.type.ArithmeticOpTable.*;
-import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.*;
+import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp;
+import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.And;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.lir.gen.*;
 import com.oracle.graal.nodeinfo.*;
@@ -36,7 +37,7 @@
 import com.oracle.graal.nodes.util.*;
 
 @NodeInfo(shortName = "&")
-public final class AndNode extends BinaryArithmeticNode<And> implements NarrowableArithmeticNode {
+public final class AndNode extends BinaryArithmeticNode<And> implements NarrowableArithmeticNode, BinaryCommutative<ValueNode> {
 
     public static final NodeClass<AndNode> TYPE = NodeClass.create(AndNode.class);
 
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/BinaryArithmeticNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/BinaryArithmeticNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/BinaryArithmeticNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -37,7 +37,7 @@
 import com.oracle.graal.nodes.spi.*;
 
 @NodeInfo
-public abstract class BinaryArithmeticNode<OP> extends BinaryNode implements ArithmeticLIRLowerable, Canonicalizable.BinaryCommutative<ValueNode> {
+public abstract class BinaryArithmeticNode<OP> extends BinaryNode implements ArithmeticLIRLowerable, Canonicalizable.Binary<ValueNode> {
 
     @SuppressWarnings("rawtypes") public static final NodeClass<BinaryArithmeticNode> TYPE = NodeClass.create(BinaryArithmeticNode.class);
 
@@ -62,11 +62,6 @@
     }
 
     @Override
-    public boolean isCommutative() {
-        return getOp(getX(), getY()).isCommutative();
-    }
-
-    @Override
     public ValueNode canonical(CanonicalizerTool tool, ValueNode forX, ValueNode forY) {
         ValueNode result = tryConstantFold(getOp(forX, forY), forX, forY, stamp());
         if (result != null) {
@@ -268,6 +263,7 @@
      */
     @SuppressWarnings("deprecation")
     public BinaryNode maybeCommuteInputs() {
+        assert this instanceof BinaryCommutative;
         if (!y.isConstant() && x.getId() > y.getId()) {
             ValueNode tmp = x;
             x = y;
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/CompareNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/CompareNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/CompareNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -38,7 +38,7 @@
  * into variants that do not materialize the value (CompareIf, CompareGuard...)
  */
 @NodeInfo
-public abstract class CompareNode extends BinaryOpLogicNode {
+public abstract class CompareNode extends BinaryOpLogicNode implements Canonicalizable.Binary<ValueNode> {
 
     public static final NodeClass<CompareNode> TYPE = NodeClass.create(CompareNode.class);
     protected final Condition condition;
@@ -65,11 +65,6 @@
         return condition;
     }
 
-    @Override
-    public boolean isCommutative() {
-        return condition.isCommutative();
-    }
-
     /**
      * Checks whether unordered inputs mean true or false (only applies to float operations).
      *
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/FloatEqualsNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/FloatEqualsNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/FloatEqualsNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -27,13 +27,14 @@
 import com.oracle.graal.compiler.common.calc.*;
 import com.oracle.graal.compiler.common.type.*;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.nodeinfo.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.util.*;
 
 @NodeInfo(shortName = "==")
-public final class FloatEqualsNode extends CompareNode {
+public final class FloatEqualsNode extends CompareNode implements BinaryCommutative<ValueNode> {
     public static final NodeClass<FloatEqualsNode> TYPE = NodeClass.create(FloatEqualsNode.class);
 
     public FloatEqualsNode(ValueNode x, ValueNode y) {
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/IntegerEqualsNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/IntegerEqualsNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/IntegerEqualsNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -27,13 +27,14 @@
 import com.oracle.graal.compiler.common.calc.*;
 import com.oracle.graal.compiler.common.type.*;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.nodeinfo.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.util.*;
 
 @NodeInfo(shortName = "==")
-public final class IntegerEqualsNode extends CompareNode {
+public final class IntegerEqualsNode extends CompareNode implements BinaryCommutative<ValueNode> {
     public static final NodeClass<IntegerEqualsNode> TYPE = NodeClass.create(IntegerEqualsNode.class);
 
     public IntegerEqualsNode(ValueNode x, ValueNode y) {
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/IntegerTestNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/IntegerTestNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/IntegerTestNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -24,6 +24,7 @@
 
 import com.oracle.graal.compiler.common.type.*;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.nodeinfo.*;
 import com.oracle.graal.nodes.*;
@@ -34,7 +35,7 @@
  * both x and y.
  */
 @NodeInfo
-public final class IntegerTestNode extends BinaryOpLogicNode {
+public final class IntegerTestNode extends BinaryOpLogicNode implements BinaryCommutative<ValueNode> {
     public static final NodeClass<IntegerTestNode> TYPE = NodeClass.create(IntegerTestNode.class);
 
     public IntegerTestNode(ValueNode x, ValueNode y) {
@@ -57,9 +58,4 @@
         }
         return this;
     }
-
-    @Override
-    public boolean isCommutative() {
-        return true;
-    }
 }
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/MulNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/MulNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/MulNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -26,8 +26,9 @@
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.compiler.common.type.*;
 import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp;
-import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.*;
+import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Mul;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.lir.gen.*;
 import com.oracle.graal.nodeinfo.*;
@@ -35,7 +36,7 @@
 import com.oracle.graal.nodes.spi.*;
 
 @NodeInfo(shortName = "*")
-public class MulNode extends BinaryArithmeticNode<Mul> implements NarrowableArithmeticNode {
+public class MulNode extends BinaryArithmeticNode<Mul> implements NarrowableArithmeticNode, BinaryCommutative<ValueNode> {
 
     public static final NodeClass<MulNode> TYPE = NodeClass.create(MulNode.class);
 
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/OrNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/OrNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/OrNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -25,9 +25,10 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.compiler.common.type.*;
-import com.oracle.graal.compiler.common.type.ArithmeticOpTable.*;
-import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.*;
+import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp;
+import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Or;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.lir.gen.*;
 import com.oracle.graal.nodeinfo.*;
@@ -36,7 +37,7 @@
 import com.oracle.graal.nodes.util.*;
 
 @NodeInfo(shortName = "|")
-public final class OrNode extends BinaryArithmeticNode<Or> {
+public final class OrNode extends BinaryArithmeticNode<Or> implements BinaryCommutative<ValueNode> {
 
     public static final NodeClass<OrNode> TYPE = NodeClass.create(OrNode.class);
 
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/PointerEqualsNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/PointerEqualsNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/PointerEqualsNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -25,13 +25,14 @@
 import com.oracle.graal.compiler.common.calc.*;
 import com.oracle.graal.compiler.common.type.*;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.nodeinfo.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.util.*;
 
 @NodeInfo(shortName = "==")
-public class PointerEqualsNode extends CompareNode {
+public class PointerEqualsNode extends CompareNode implements BinaryCommutative<ValueNode> {
 
     public static final NodeClass<PointerEqualsNode> TYPE = NodeClass.create(PointerEqualsNode.class);
 
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/XorNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/XorNode.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/XorNode.java	Fri Feb 27 12:08:57 2015 +0100
@@ -25,9 +25,10 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.compiler.common.type.*;
-import com.oracle.graal.compiler.common.type.ArithmeticOpTable.*;
-import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.*;
+import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp;
+import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Xor;
 import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative;
 import com.oracle.graal.graph.spi.*;
 import com.oracle.graal.lir.gen.*;
 import com.oracle.graal.nodeinfo.*;
@@ -36,7 +37,7 @@
 import com.oracle.graal.nodes.util.*;
 
 @NodeInfo(shortName = "^")
-public final class XorNode extends BinaryArithmeticNode<Xor> {
+public final class XorNode extends BinaryArithmeticNode<Xor> implements BinaryCommutative<ValueNode> {
 
     public static final NodeClass<XorNode> TYPE = NodeClass.create(XorNode.class);
 
@@ -84,7 +85,7 @@
             }
             return reassociate(this, ValueNode.isConstantPredicate(), forX, forY);
         }
-        return this.maybeCommuteInputs();
+        return this;
     }
 
     @Override
diff -r 382e4f844d96 -r d5042bcd422f graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/CanonicalizerPhase.java
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/CanonicalizerPhase.java	Thu Feb 26 19:08:19 2015 +0100
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/CanonicalizerPhase.java	Fri Feb 27 12:08:57 2015 +0100
@@ -263,10 +263,7 @@
                     try (AutoCloseable verify = getCanonicalizeableContractAssertion(node)) {
                         canonical = ((Canonicalizable) node).canonical(tool);
                         if (canonical == node && nodeClass.isCommutative()) {
-                            Canonicalizable.BinaryCommutative<?> commutative = (BinaryCommutative<?>) node;
-                            if (commutative.isCommutative()) {
-                                canonical = commutative.maybeCommuteInputs();
-                            }
+                            canonical = ((BinaryCommutative<?>) node).maybeCommuteInputs();
                         }
                     }
                     if (performReplacement(node, canonical)) {