com.oracle.svm.core.nodes

Class CFunctionPrologueNode

java.lang.Object

org.graalvm.compiler.graph.Node

org.graalvm.compiler.nodes.ValueNode

org.graalvm.compiler.nodes.FixedNode

org.graalvm.compiler.nodes.FixedWithNextNode

com.oracle.svm.core.nodes.CFunctionPrologueNode

All Implemented Interfaces:

Cloneable, Formattable, org.graalvm.compiler.graph.NodeInterface, org.graalvm.compiler.nodes.debug.ControlFlowAnchored, org.graalvm.compiler.nodes.FixedNodeInterface, org.graalvm.compiler.nodes.memory.MemoryCheckpoint, org.graalvm.compiler.nodes.memory.MemoryCheckpoint.Single, org.graalvm.compiler.nodes.memory.MemoryNode, org.graalvm.compiler.nodes.spi.Lowerable, org.graalvm.compiler.nodes.ValueNodeInterface

public final class CFunctionPrologueNode
extends org.graalvm.compiler.nodes.FixedWithNextNode
implements org.graalvm.compiler.nodes.spi.Lowerable, org.graalvm.compiler.nodes.memory.MemoryCheckpoint.Single, org.graalvm.compiler.nodes.debug.ControlFlowAnchored

Represents the prologue that must be executed before a call to a C function, i.e., a function that requires the setup of a JavaFrameAnchor and a thread state transition. It must always be paired with a CFunctionEpilogueNode. In between the prologue and epilogue, there must be exactly one InvokeNode (note that it must not be an invoke that requires an exception handler, i.e., it must not be an InvokeWithExceptionNode. Part of the prologue/epilogue are emitted by the lowering of these nodes using snippets, see class CFunctionSnippets. Other parts are emitted in the backend when the call instruction is emitted.

Nested Class Summary

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

org.graalvm.compiler.graph.Node.ConstantNodeParameter, org.graalvm.compiler.graph.Node.EdgeVisitor, org.graalvm.compiler.graph.Node.IndirectCanonicalization, org.graalvm.compiler.graph.Node.InjectedNodeParameter, org.graalvm.compiler.graph.Node.Input, org.graalvm.compiler.graph.Node.NodeInsertionStackTrace, org.graalvm.compiler.graph.Node.NodeIntrinsic, org.graalvm.compiler.graph.Node.OptionalInput, org.graalvm.compiler.graph.Node.Successor, org.graalvm.compiler.graph.Node.ValueNumberable

Nested classes/interfaces inherited from interface org.graalvm.compiler.nodes.memory.MemoryCheckpoint

org.graalvm.compiler.nodes.memory.MemoryCheckpoint.Multi, org.graalvm.compiler.nodes.memory.MemoryCheckpoint.Single, org.graalvm.compiler.nodes.memory.MemoryCheckpoint.TypeAssertion

Field Summary

Fields

Modifier and Type	Field and Description
static org.graalvm.compiler.graph.NodeClass<CFunctionPrologueNode>	TYPE

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

next

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

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
CFunctionPrologueNode()

Method Summary

Modifier and Type	Method and Description
protected void	afterClone(org.graalvm.compiler.graph.Node other)
static void	cFunctionPrologue()
org.graalvm.word.LocationIdentity	getLocationIdentity()
CFunctionPrologueMarker	getMarker()
void	lower(org.graalvm.compiler.nodes.spi.LoweringTool tool)

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

asNode, next, setNext

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

verify

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

asConstant, asJavaConstant, getStackKind, graph, hasUsagesOtherThan, inferStamp, isAllowedUsageType, isConstant, isConstantPredicate, isDefaultConstant, isJavaConstant, isNullConstant, replaceAtUsages, setStamp, stamp, updateStamp

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

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.graalvm.compiler.nodes.FixedNodeInterface

asNode

Field Detail

TYPE

public static final org.graalvm.compiler.graph.NodeClass<CFunctionPrologueNode> TYPE

Constructor Detail

CFunctionPrologueNode

public CFunctionPrologueNode()

Method Detail

afterClone

protected void afterClone(org.graalvm.compiler.graph.Node other)

Overrides:

afterClone in class org.graalvm.compiler.graph.Node

getMarker

public CFunctionPrologueMarker getMarker()

lower

public void lower(org.graalvm.compiler.nodes.spi.LoweringTool tool)

Specified by:

lower in interface org.graalvm.compiler.nodes.spi.Lowerable

getLocationIdentity

public org.graalvm.word.LocationIdentity getLocationIdentity()

Specified by:

getLocationIdentity in interface org.graalvm.compiler.nodes.memory.MemoryCheckpoint.Single

cFunctionPrologue

public static void cFunctionPrologue()