org.graalvm.compiler.replacements.amd64

Class AMD64FloatConvertNode

java.lang.Object

org.graalvm.compiler.graph.Node

org.graalvm.compiler.nodes.ValueNode

org.graalvm.compiler.nodes.calc.FloatingNode

org.graalvm.compiler.nodes.calc.UnaryNode

org.graalvm.compiler.nodes.calc.UnaryArithmeticNode<ArithmeticOpTable.FloatConvertOp>

org.graalvm.compiler.replacements.amd64.AMD64FloatConvertNode

All Implemented Interfaces:

Cloneable, Formattable, Node.IndirectCanonicalization, Node.ValueNumberable, CanonicalizableMarker, ArithmeticOperation, ArithmeticLIRLowerable, Canonicalizable, Canonicalizable.Unary<ValueNode>, LIRLowerable, ValueNodeInterface

public final class AMD64FloatConvertNode
extends UnaryArithmeticNode<ArithmeticOpTable.FloatConvertOp>
implements ArithmeticLIRLowerable

This node has the semantics of the AMD64 floating point conversions. It is used in the lowering of the FloatConvertNode which, on AMD64 needs a AMD64FloatConvertNode plus some fixup code that handles the corner cases that differ between AMD64 and Java. Since this node evaluates to a special value if the conversion is inexact, its stamp must be modified to avoid optimizing away AMD64ConvertSnippets.

Nested Class Summary

Nested classes/interfaces inherited from class org.graalvm.compiler.graph.Node

Node.ConstantNodeParameter, Node.EdgeVisitor, Node.IndirectCanonicalization, Node.InjectedNodeParameter, Node.Input, Node.NodeInsertionStackTrace, Node.NodeIntrinsic, Node.NodeIntrinsicFactory, Node.OptionalInput, Node.Successor, Node.ValueNumberable

Nested classes/interfaces inherited from interface org.graalvm.compiler.nodes.spi.Canonicalizable

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

Field Summary

Fields

Modifier and Type	Field and Description
protected FloatConvert	op
static NodeClass<AMD64FloatConvertNode>	TYPE

Fields inherited from class org.graalvm.compiler.nodes.calc.UnaryNode

value

Fields inherited from class org.graalvm.compiler.nodes.ValueNode

EMPTY_ARRAY, stamp

Fields inherited from class org.graalvm.compiler.graph.Node

NODE_LIST, NOT_ITERABLE, TRACK_CREATION_POSITION, WithAllEdges, WithNoEdges, WithOnlyInputEdges, WithOnlySucessorEdges

Constructor Summary

Constructors

Constructor and Description
AMD64FloatConvertNode(FloatConvert op, ValueNode value)

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.
Stamp	foldStamp(Stamp newStamp) Compute an improved for this node using the passed in stamp.
void	generate(NodeLIRBuilderTool nodeValueMap, ArithmeticLIRGeneratorTool gen)
protected ArithmeticOpTable.UnaryOp<ArithmeticOpTable.FloatConvertOp>	getOp(ArithmeticOpTable table)

Methods inherited from class org.graalvm.compiler.nodes.calc.UnaryArithmeticNode

findSynonym, getArithmeticOp, getOp

Methods inherited from class org.graalvm.compiler.nodes.calc.UnaryNode

getValue, inferStamp, setValue

Methods inherited from class org.graalvm.compiler.nodes.ValueNode

asConstant, asJavaConstant, asNode, asSerializableConstant, checkReplaceAtUsagesInvariants, getStackKind, graph, hasUsagesOtherThan, isAllowedUsageType, isConstant, isConstantPredicate, isDefaultConstant, isIllegalConstant, isJavaConstant, isNullConstant, isSerializableConstant, recursivelyDataFlowEqualsUpTo, setStamp, stamp, updateStamp, updateUsagesInterface

Methods inherited from class org.graalvm.compiler.graph.Node

afterClone, applyInputs, applySuccessors, assertFalse, assertTrue, cfgPredecessors, cfgSuccessors, clearInputs, clearNodeSourcePosition, clearSuccessors, copyWithInputs, copyWithInputs, dataFlowEquals, dynamicNodeSizeEstimate, estimatedNodeCycles, estimatedNodeSize, fail, formatTo, getCreationPosition, getDebug, getDebugProperties, getDebugProperties, getInsertionPosition, getNodeClass, getNodeSourcePosition, getOptions, getUsageCount, hasExactlyOneUsage, hashCode, hasMoreThanOneUsage, hasNoUsages, hasOnlyUsagesOfType, hasUsages, hasUsagesOfType, inputPositions, inputs, isAlive, isDeleted, isUnregistered, markDeleted, maybeNotifyZeroUsages, modCount, predecessor, pushInputs, removeUsage, replaceAllInputs, replaceAndDelete, replaceAtAllUsages, replaceAtMatchingUsages, replaceAtPredecessor, replaceAtUsages, replaceAtUsages, replaceAtUsages, replaceAtUsages, replaceAtUsages, replaceAtUsagesAndDelete, replaceAtUsagesAndDelete, replaceFirstInput, replaceFirstSuccessor, safeDelete, setCreationPosition, setInsertionPosition, setNodeSourcePosition, singleUsage, successorPositions, successors, toString, toString, updateNodeSourcePosition, updatePredecessor, updateUsages, usages, valueEquals, verify, verifyEdges, verifyInputs, verifySourcePosition, withNodeSourcePosition

Methods inherited from class java.lang.Object

clone, equals, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.graalvm.compiler.nodes.spi.ArithmeticLIRLowerable

generate

Methods inherited from interface org.graalvm.compiler.nodes.spi.Canonicalizable.Unary

canonical

Field Detail

TYPE

public static final NodeClass<AMD64FloatConvertNode> TYPE

op

protected final FloatConvert op

Constructor Detail

AMD64FloatConvertNode

public AMD64FloatConvertNode(FloatConvert op,
                             ValueNode value)

Method Detail

getOp

protected ArithmeticOpTable.UnaryOp<ArithmeticOpTable.FloatConvertOp> getOp(ArithmeticOpTable table)

Specified by:

getOp in class UnaryArithmeticNode<ArithmeticOpTable.FloatConvertOp>

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 UnaryArithmeticNode<ArithmeticOpTable.FloatConvertOp>

foldStamp

public Stamp foldStamp(Stamp newStamp)

Description copied from class: UnaryNode

Compute an improved for this node using the passed in stamp. The stamp must be compatible with the current value of UnaryNode.value. This code is used to provide the default implementation of UnaryNode.inferStamp() and may be used by external optimizations.

Overrides:

foldStamp in class UnaryArithmeticNode<ArithmeticOpTable.FloatConvertOp>

generate

public void generate(NodeLIRBuilderTool nodeValueMap,
                     ArithmeticLIRGeneratorTool gen)

Specified by:

generate in interface ArithmeticLIRLowerable