com.oracle.graal.nodes

Class ConstantNode

java.lang.Object

com.oracle.graal.graph.Node

com.oracle.graal.nodes.ValueNode

com.oracle.graal.nodes.calc.FloatingNode

com.oracle.graal.nodes.ConstantNode

All Implemented Interfaces:

Node.ValueNumberable, LIRLowerable, Cloneable, Formattable, KindProvider

public final class ConstantNode
extends FloatingNode
implements LIRLowerable

The ConstantNode represents a constant.

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

Field Summary

Fields

Modifier and Type	Field and Description
static NodeClass<ConstantNode>	TYPE
protected Constant	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
ConstantNode(Constant value, Stamp stamp) Constructs a new node representing the specified constant.

Method Summary

Modifier and Type	Method and Description
private static ConstantNode	createPrimitive(JavaConstant value)
static ConstantNode	defaultForKind(Kind kind, StructuredGraph graph)
static ConstantNode	forBoolean(boolean i) Returns a node for a boolean constant.
static ConstantNode	forBoolean(boolean i, StructuredGraph graph) Returns a node for a boolean constant.
static ConstantNode	forByte(byte i, StructuredGraph graph) Returns a node for a byte constant.
static ConstantNode	forChar(char i, StructuredGraph graph) Returns a node for a char constant.
static ConstantNode	forConstant(JavaConstant constant, MetaAccessProvider metaAccess)
static ConstantNode	forConstant(JavaConstant constant, MetaAccessProvider metaAccess, StructuredGraph graph)
static ConstantNode	forConstant(Stamp stamp, Constant constant, MetaAccessProvider metaAccess)
static ConstantNode	forConstant(Stamp stamp, Constant constant, MetaAccessProvider metaAccess, StructuredGraph graph)
static ConstantNode	forDouble(double d) Returns a node for a double constant.
static ConstantNode	forDouble(double d, StructuredGraph graph) Returns a node for a double constant.
static ConstantNode	forFloat(float f) Returns a node for a float constant.
static ConstantNode	forFloat(float f, StructuredGraph graph) Returns a node for a float constant.
static ConstantNode	forFloatingKind(Kind kind, double value)
static ConstantNode	forFloatingKind(Kind kind, double value, StructuredGraph graph)
static ConstantNode	forFloatingStamp(Stamp stamp, double value) Returns a node for a constant double that's compatible to a given stamp.
static ConstantNode	forFloatingStamp(Stamp stamp, double value, StructuredGraph graph) Returns a node for a constant double that's compatible to a given stamp.
static ConstantNode	forInt(int i) Returns a node for an integer constant.
static ConstantNode	forInt(int i, StructuredGraph graph) Returns a node for an integer constant.
private static ConstantNode	forIntegerBits(int bits, JavaConstant constant)
private static ConstantNode	forIntegerBits(int bits, JavaConstant constant, StructuredGraph graph)
static ConstantNode	forIntegerBits(int bits, long value) Returns a node for a constant integer that's not directly representable as Java primitive (e.g.
static ConstantNode	forIntegerBits(int bits, long value, StructuredGraph graph) Returns a node for a constant integer that's not directly representable as Java primitive (e.g.
static ConstantNode	forIntegerKind(Kind kind, long value)
static ConstantNode	forIntegerKind(Kind kind, long value, StructuredGraph graph)
static ConstantNode	forIntegerStamp(Stamp stamp, long value) Returns a node for a constant integer that's compatible to a given stamp.
static ConstantNode	forIntegerStamp(Stamp stamp, long value, StructuredGraph graph) Returns a node for a constant integer that's compatible to a given stamp.
static ConstantNode	forLong(long i) Returns a node for an long constant.
static ConstantNode	forLong(long i, StructuredGraph graph) Returns a node for an long constant.
static ConstantNode	forPrimitive(JavaConstant constant) Returns a node for a Java primitive.
static ConstantNode	forPrimitive(JavaConstant constant, StructuredGraph graph) Returns a node for a Java primitive.
static ConstantNode	forPrimitive(Stamp stamp, Constant constant) Returns a node for a primitive of a given type.
static ConstantNode	forPrimitive(Stamp stamp, JavaConstant constant, StructuredGraph graph) Returns a node for a primitive of a given type.
static ConstantNode	forShort(short i, StructuredGraph graph) Returns a node for a short constant.
void	generate(NodeLIRBuilderTool gen)
static NodeIterable<ConstantNode>	getConstantNodes(StructuredGraph graph) Gathers all the ConstantNodes that are inputs to the live nodes in a given graph.
Map<Object,Object>	getDebugProperties(Map<Object,Object> map) Fills a Map with properties of this node for use in debugging (e.g., to view in the ideal graph visualizer).
Constant	getValue()
private static boolean	isCompatible(Constant value, Stamp stamp)
private boolean	onlyUsedInVirtualState()
void	replace(StructuredGraph graph, Node replacement) Replaces this node at its usages with another node.
String	toString(Verbosity verbosity) Creates a String representation for this node with a given Verbosity.
private static ConstantNode	unique(StructuredGraph graph, ConstantNode node)

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, 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, updatePredecessor, updateUsages, updateUsagesInterface, usages, valueEquals, verify, verifyEdges, verifyInputs

Methods inherited from class java.lang.Object

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

Field Detail

TYPE

public static final NodeClass<ConstantNode> TYPE

value

protected final Constant value

Constructor Detail

ConstantNode

public ConstantNode(Constant value,
                    Stamp stamp)

Constructs a new node representing the specified constant.

Parameters:

value - the constant

Method Detail

createPrimitive

private static ConstantNode createPrimitive(JavaConstant value)

isCompatible

private static boolean isCompatible(Constant value,
                                    Stamp stamp)

getValue

public Constant getValue()

Returns:

the constant value represented by this node

getConstantNodes

public static NodeIterable<ConstantNode> getConstantNodes(StructuredGraph graph)

Gathers all the ConstantNodes that are inputs to the live nodes in a given graph.

replace

public void replace(StructuredGraph graph,
                    Node replacement)

Replaces this node at its usages with another node.

generate

public void generate(NodeLIRBuilderTool gen)

Specified by:

generate in interface LIRLowerable

onlyUsedInVirtualState

private boolean onlyUsedInVirtualState()

forConstant

public static ConstantNode forConstant(JavaConstant constant,
                                       MetaAccessProvider metaAccess,
                                       StructuredGraph graph)

forConstant

public static ConstantNode forConstant(JavaConstant constant,
                                       MetaAccessProvider metaAccess)

forConstant

public static ConstantNode forConstant(Stamp stamp,
                                       Constant constant,
                                       MetaAccessProvider metaAccess,
                                       StructuredGraph graph)

forConstant

public static ConstantNode forConstant(Stamp stamp,
                                       Constant constant,
                                       MetaAccessProvider metaAccess)

forPrimitive

public static ConstantNode forPrimitive(JavaConstant constant,
                                        StructuredGraph graph)

Returns a node for a Java primitive.

forPrimitive

public static ConstantNode forPrimitive(JavaConstant constant)

Returns a node for a Java primitive.

forPrimitive

public static ConstantNode forPrimitive(Stamp stamp,
                                        JavaConstant constant,
                                        StructuredGraph graph)

Returns a node for a primitive of a given type.

forPrimitive

public static ConstantNode forPrimitive(Stamp stamp,
                                        Constant constant)

Returns a node for a primitive of a given type.

forDouble

public static ConstantNode forDouble(double d,
                                     StructuredGraph graph)

Returns a node for a double constant.

Parameters:

d - the double value for which to create the instruction

Returns:

a node for a double constant

forDouble

public static ConstantNode forDouble(double d)

Returns a node for a double constant.

Parameters:

d - the double value for which to create the instruction

Returns:

a node for a double constant

forFloat

public static ConstantNode forFloat(float f,
                                    StructuredGraph graph)

Returns a node for a float constant.

Parameters:

f - the float value for which to create the instruction

Returns:

a node for a float constant

forFloat

public static ConstantNode forFloat(float f)

Returns a node for a float constant.

Parameters:

f - the float value for which to create the instruction

Returns:

a node for a float constant

forLong

public static ConstantNode forLong(long i,
                                   StructuredGraph graph)

Returns a node for an long constant.

Parameters:

i - the long value for which to create the instruction

Returns:

a node for an long constant

forLong

public static ConstantNode forLong(long i)

Returns a node for an long constant.

Parameters:

i - the long value for which to create the instruction

Returns:

a node for an long constant

forInt

public static ConstantNode forInt(int i,
                                  StructuredGraph graph)

Returns a node for an integer constant.

Parameters:

i - the integer value for which to create the instruction

Returns:

a node for an integer constant

forInt

public static ConstantNode forInt(int i)

Returns a node for an integer constant.

Parameters:

i - the integer value for which to create the instruction

Returns:

a node for an integer constant

forBoolean

public static ConstantNode forBoolean(boolean i,
                                      StructuredGraph graph)

Returns a node for a boolean constant.

Parameters:

i - the boolean value for which to create the instruction

Returns:

a node representing the boolean

forBoolean

public static ConstantNode forBoolean(boolean i)

Returns a node for a boolean constant.

Parameters:

i - the boolean value for which to create the instruction

Returns:

a node representing the boolean

forByte

public static ConstantNode forByte(byte i,
                                   StructuredGraph graph)

Returns a node for a byte constant.

Parameters:

i - the byte value for which to create the instruction

Returns:

a node representing the byte

forChar

public static ConstantNode forChar(char i,
                                   StructuredGraph graph)

Returns a node for a char constant.

Parameters:

i - the char value for which to create the instruction

Returns:

a node representing the char

forShort

public static ConstantNode forShort(short i,
                                    StructuredGraph graph)

Returns a node for a short constant.

Parameters:

i - the short value for which to create the instruction

Returns:

a node representing the short

unique

private static ConstantNode unique(StructuredGraph graph,
                                   ConstantNode node)

forIntegerBits

private static ConstantNode forIntegerBits(int bits,
                                           JavaConstant constant,
                                           StructuredGraph graph)

forIntegerBits

public static ConstantNode forIntegerBits(int bits,
                                          long value,
                                          StructuredGraph graph)

Returns a node for a constant integer that's not directly representable as Java primitive (e.g. short).

forIntegerBits

private static ConstantNode forIntegerBits(int bits,
                                           JavaConstant constant)

forIntegerBits

public static ConstantNode forIntegerBits(int bits,
                                          long value)

Returns a node for a constant integer that's not directly representable as Java primitive (e.g. short).

forIntegerStamp

public static ConstantNode forIntegerStamp(Stamp stamp,
                                           long value,
                                           StructuredGraph graph)

Returns a node for a constant integer that's compatible to a given stamp.

forIntegerStamp

public static ConstantNode forIntegerStamp(Stamp stamp,
                                           long value)

Returns a node for a constant integer that's compatible to a given stamp.

forIntegerKind

public static ConstantNode forIntegerKind(Kind kind,
                                          long value,
                                          StructuredGraph graph)

forIntegerKind

public static ConstantNode forIntegerKind(Kind kind,
                                          long value)

forFloatingKind

public static ConstantNode forFloatingKind(Kind kind,
                                           double value,
                                           StructuredGraph graph)

forFloatingKind

public static ConstantNode forFloatingKind(Kind kind,
                                           double value)

forFloatingStamp

public static ConstantNode forFloatingStamp(Stamp stamp,
                                            double value,
                                            StructuredGraph graph)

Returns a node for a constant double that's compatible to a given stamp.

forFloatingStamp

public static ConstantNode forFloatingStamp(Stamp stamp,
                                            double value)

Returns a node for a constant double that's compatible to a given stamp.

defaultForKind

public static ConstantNode defaultForKind(Kind kind,
                                          StructuredGraph graph)

getDebugProperties

public Map<Object,Object> getDebugProperties(Map<Object,Object> map)

Description copied from class: Node

Fills a Map with properties of this node for use in debugging (e.g., to view in the ideal graph visualizer). Subclasses overriding this method should also fill the map using their superclass.

Overrides:

getDebugProperties in class Node

toString

public String toString(Verbosity verbosity)

Description copied from class: Node

Creates a String representation for this node with a given Verbosity.

Overrides:

toString in class Node