com.oracle.graal.nodes.calc

Class IntegerTestNode

java.lang.Object

com.oracle.graal.graph.Node

com.oracle.graal.nodes.ValueNode

com.oracle.graal.nodes.calc.FloatingNode

com.oracle.graal.nodes.LogicNode

com.oracle.graal.nodes.BinaryOpLogicNode

com.oracle.graal.nodes.calc.IntegerTestNode

All Implemented Interfaces:

Node.ValueNumberable, Canonicalizable, Canonicalizable.Binary<ValueNode>, Canonicalizable.BinaryCommutative<ValueNode>, LIRLowerable, Cloneable, Formattable, KindProvider

public final class IntegerTestNode
extends BinaryOpLogicNode
implements Canonicalizable.BinaryCommutative<ValueNode>

This node will perform a "test" operation on its arguments. Its result is equivalent to the expression "(x & y) == 0", meaning that it will return true if (and only if) no bit is set in both x and y.

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.graal.graph.Node

Node.ConstantNodeParameter, Node.InjectedNodeParameter, Node.Input, Node.NodeIntrinsic, Node.OptionalInput, Node.Successor, Node.ValueNumberable

Nested classes/interfaces inherited from interface com.oracle.graal.graph.spi.Canonicalizable

Canonicalizable.Binary<T extends Node>, Canonicalizable.BinaryCommutative<T extends Node>, Canonicalizable.Unary<T extends Node>

Field Summary

Fields

Modifier and Type	Field and Description
static NodeClass<IntegerTestNode>	TYPE

Fields inherited from class com.oracle.graal.nodes.BinaryOpLogicNode

x, y

Fields inherited from class com.oracle.graal.nodes.ValueNode

stamp

Fields inherited from class com.oracle.graal.graph.Node

NODE_LIST, NOT_ITERABLE, USE_UNSAFE_TO_CLONE, WithAllEdges, WithNoEdges, WithOnlyInputEdges, WithOnlySucessorEdges

Constructor Summary

Constructors

Constructor and Description
IntegerTestNode(ValueNode x, ValueNode y)

Method Summary

Modifier and Type	Method and Description
ValueNode	canonical(CanonicalizerTool tool, ValueNode forX, ValueNode forY) Similar to Canonicalizable.canonical(CanonicalizerTool), except that implementations should act as if the current input of the node was the given one, i.e., they should never look at the inputs via the this pointer.
private static Stamp	getSucceedingStamp(boolean negated, Stamp xStampGeneric, Stamp otherStampGeneric)
Stamp	getSucceedingStampForX(boolean negated)
Stamp	getSucceedingStampForY(boolean negated)
TriState	tryFold(Stamp xStampGeneric, Stamp yStampGeneric)

Methods inherited from class com.oracle.graal.nodes.BinaryOpLogicNode

generate, getX, getY, maybeCommuteInputs, verify

Methods inherited from class com.oracle.graal.nodes.LogicNode

and, and, isContradiction, isTautology, or, or

Methods inherited from class com.oracle.graal.nodes.calc.FloatingNode

asNode

Methods inherited from class com.oracle.graal.nodes.ValueNode

asConstant, asJavaConstant, getKind, graph, inferStamp, isAllowedUsageType, isConstant, isConstantPredicate, isNullConstant, setStamp, stamp, updateStamp

Methods inherited from class com.oracle.graal.graph.Node

acceptInputs, acceptSuccessors, afterClone, assertFalse, assertTrue, cfgPredecessors, cfgSuccessors, clearInputs, clearSuccessors, copyWithInputs, copyWithInputs, equals, fail, formatTo, getDebugProperties, getDebugProperties, getId, getNodeClass, getUsageAt, getUsageCount, hashCode, hasNoUsages, hasUsages, inputs, isAlive, isDeleted, markDeleted, modCount, newIdentityMap, newIdentityMap, newIdentityMap, newMap, newMap, newMap, newSet, newSet, predecessor, pushInputs, removeUsage, replaceAndDelete, replaceAtMatchingUsages, replaceAtPredecessor, replaceAtUsages, replaceAtUsages, replaceAtUsages, replaceFirstInput, replaceFirstSuccessor, safeDelete, simplify, successors, toString, toString, updatePredecessor, updateUsages, updateUsagesInterface, usages, valueEquals, verifyEdges, verifyInputs

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.oracle.graal.graph.spi.Canonicalizable.BinaryCommutative

maybeCommuteInputs

Methods inherited from interface com.oracle.graal.graph.spi.Canonicalizable.Binary

canonical, getX, getY

Field Detail

TYPE

public static final NodeClass<IntegerTestNode> TYPE

Constructor Detail

IntegerTestNode

public IntegerTestNode(ValueNode x,
                       ValueNode y)

Method Detail

canonical

public ValueNode canonical(CanonicalizerTool tool,
                           ValueNode forX,
                           ValueNode forY)

Description copied from interface: Canonicalizable.Binary

Similar to Canonicalizable.canonical(CanonicalizerTool), except that implementations should act as if the current input of the node was the given one, i.e., they should never look at the inputs via the this pointer.

Specified by:

canonical in interface Canonicalizable.Binary<ValueNode>

getSucceedingStampForX

public Stamp getSucceedingStampForX(boolean negated)

Specified by:

getSucceedingStampForX in class BinaryOpLogicNode

getSucceedingStamp

private static Stamp getSucceedingStamp(boolean negated,
                                        Stamp xStampGeneric,
                                        Stamp otherStampGeneric)

getSucceedingStampForY

public Stamp getSucceedingStampForY(boolean negated)

Specified by:

getSucceedingStampForY in class BinaryOpLogicNode

tryFold

public TriState tryFold(Stamp xStampGeneric,
                        Stamp yStampGeneric)

Specified by:

tryFold in class BinaryOpLogicNode