com.oracle.graal.nodes.calc

Class ZeroExtendNode

java.lang.Object

com.oracle.graal.graph.Node

com.oracle.graal.nodes.ValueNode

com.oracle.graal.nodes.calc.FloatingNode

com.oracle.graal.nodes.calc.UnaryNode

com.oracle.graal.nodes.calc.IntegerConvertNode<ArithmeticOpTable.IntegerConvertOp.ZeroExtend,ArithmeticOpTable.IntegerConvertOp.Narrow>

com.oracle.graal.nodes.calc.ZeroExtendNode

All Implemented Interfaces:

Node.ValueNumberable, NodeInterface, Canonicalizable, Canonicalizable.Unary<ValueNode>, ArithmeticOperation, ConvertNode, ArithmeticLIRLowerable, Cloneable, Formattable, KindProvider

public final class ZeroExtendNode
extends IntegerConvertNode<ArithmeticOpTable.IntegerConvertOp.ZeroExtend,ArithmeticOpTable.IntegerConvertOp.Narrow>

The ZeroExtendNode converts an integer to a wider integer using zero extension.

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.graal.nodes.calc.IntegerConvertNode

IntegerConvertNode.SerializableIntegerConvertFunction<T>

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<ZeroExtendNode>	TYPE

Fields inherited from class com.oracle.graal.nodes.calc.IntegerConvertNode

getOp, getReverseOp, inputBits, resultBits

Fields inherited from class com.oracle.graal.nodes.calc.UnaryNode

value

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
ZeroExtendNode(ValueNode input, int resultBits)
ZeroExtendNode(ValueNode input, int inputBits, int resultBits)

Method Summary

Modifier and Type	Method and Description
ValueNode	canonical(CanonicalizerTool tool, ValueNode forValue) 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.
static ValueNode	create(ValueNode input, int resultBits)
static ValueNode	create(ValueNode input, int inputBits, int resultBits)
void	generate(NodeValueMap nodeValueMap, ArithmeticLIRGenerator gen)
boolean	isLossless() Check whether a conversion is lossless.
boolean	preservesOrder(Condition cond) Check whether a conversion preserves comparison order.

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

convert, convert, convert, convert, convertUnsigned, findSynonym, getInputBits, getOp, getResultBits, inferStamp, reverse

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

getValue

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

asNode

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

asConstant, asJavaConstant, getKind, graph, 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, verify, verifyEdges, verifyInputs

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.graal.nodes.calc.ConvertNode

asNode, getValue, preservesOrder

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

canonical

Field Detail

TYPE

public static final NodeClass<ZeroExtendNode> TYPE

Constructor Detail

ZeroExtendNode

public ZeroExtendNode(ValueNode input,
                      int resultBits)

ZeroExtendNode

public ZeroExtendNode(ValueNode input,
                      int inputBits,
                      int resultBits)

Method Detail

create

public static ValueNode create(ValueNode input,
                               int resultBits)

create

public static ValueNode create(ValueNode input,
                               int inputBits,
                               int resultBits)

isLossless

public boolean isLossless()

Description copied from interface: ConvertNode

Check whether a conversion is lossless.

Returns:

true iff reverse(convert(c)) == c for all c

preservesOrder

public boolean preservesOrder(Condition cond)

Description copied from interface: ConvertNode

Check whether a conversion preserves comparison order.

Parameters:

cond - a comparison operator

Returns:

true iff (c1 op c2) == (convert(c1) op convert(c2)) for all c1, c2

canonical

public ValueNode canonical(CanonicalizerTool tool,
                           ValueNode forValue)

Description copied from interface: Canonicalizable.Unary

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.Unary<ValueNode>

Overrides:

canonical in class IntegerConvertNode<ArithmeticOpTable.IntegerConvertOp.ZeroExtend,ArithmeticOpTable.IntegerConvertOp.Narrow>

generate

public void generate(NodeValueMap nodeValueMap,
                     ArithmeticLIRGenerator gen)