com.oracle.graal.nodes

Class SimplifyingGraphDecoder

java.lang.Object

com.oracle.graal.nodes.GraphDecoder

com.oracle.graal.nodes.SimplifyingGraphDecoder

Direct Known Subclasses:

PEGraphDecoder

public class SimplifyingGraphDecoder
extends GraphDecoder

Graph decoder that simplifies nodes during decoding. The standard node canonicalization interface is used to canonicalize nodes during decoding. Additionally, branches and switches with constant conditions are simplified.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	SimplifyingGraphDecoder.PECanonicalizerTool

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

GraphDecoder.InvokeData, GraphDecoder.LoopExplosionKind, GraphDecoder.LoopExplosionState, GraphDecoder.LoopScope, GraphDecoder.MethodScope

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	canonicalizeReads
protected ConstantReflectionProvider	constantReflection
protected MetaAccessProvider	metaAccess
protected StampProvider	stampProvider

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

architecture

Constructor Summary

Constructors

Constructor and Description
SimplifyingGraphDecoder(MetaAccessProvider metaAccess, ConstantReflectionProvider constantReflection, StampProvider stampProvider, boolean canonicalizeReads, Architecture architecture)

Method Summary

Modifier and Type	Method and Description
protected Node	addFloatingNode(GraphDecoder.MethodScope methodScope, Node node)
protected boolean	allowLazyPhis()
protected void	cleanupGraph(GraphDecoder.MethodScope methodScope, Graph.Mark start) Removes unnecessary nodes from the graph after decoding.
protected void	handleFixedNode(GraphDecoder.MethodScope methodScope, GraphDecoder.LoopScope loopScope, int nodeOrderId, FixedNode node) Hook for subclasses.
protected Node	handleFloatingNodeBeforeAdd(GraphDecoder.MethodScope methodScope, GraphDecoder.LoopScope loopScope, Node node) Hook for subclasses to process a non-fixed node before it is added to the graph.

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

checkLoopExplosionIteration, decode, decode, decodeFloatingNode, detectLoops, ensureNodeCreated, handleFloatingNodeAfterAdd, handleInvoke, handleLoopExplosionBegin, handleLoopExplosionEnd, handleLoopExplosionProxyNodes, handlePhiFunctions, handleProxyNodes, instantiateNode, lookupNode, makeInputNodes, makeStubNode, makeSuccessorStubs, processNextNode, readObject, readOrderId, readProperties, registerNode, skipEdge, verifyEdges

Methods inherited from class java.lang.Object

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

Field Detail

metaAccess

protected final MetaAccessProvider metaAccess

constantReflection

protected final ConstantReflectionProvider constantReflection

stampProvider

protected final StampProvider stampProvider

canonicalizeReads

protected final boolean canonicalizeReads

Constructor Detail

SimplifyingGraphDecoder

public SimplifyingGraphDecoder(MetaAccessProvider metaAccess,
                               ConstantReflectionProvider constantReflection,
                               StampProvider stampProvider,
                               boolean canonicalizeReads,
                               Architecture architecture)

Method Detail

cleanupGraph

protected void cleanupGraph(GraphDecoder.MethodScope methodScope,
                            Graph.Mark start)

Description copied from class: GraphDecoder

Removes unnecessary nodes from the graph after decoding.

Overrides:

cleanupGraph in class GraphDecoder

Parameters:

methodScope - The current method.

start - Marker for the begin of the current method in the graph.

allowLazyPhis

protected boolean allowLazyPhis()

Overrides:

allowLazyPhis in class GraphDecoder

handleFixedNode

protected void handleFixedNode(GraphDecoder.MethodScope methodScope,
                               GraphDecoder.LoopScope loopScope,
                               int nodeOrderId,
                               FixedNode node)

Description copied from class: GraphDecoder

Hook for subclasses.

Overrides:

handleFixedNode in class GraphDecoder

Parameters:

methodScope - The current method.

loopScope - The current loop.

nodeOrderId - The orderId of the node.

node - The node to be simplified.

handleFloatingNodeBeforeAdd

protected Node handleFloatingNodeBeforeAdd(GraphDecoder.MethodScope methodScope,
                                           GraphDecoder.LoopScope loopScope,
                                           Node node)

Description copied from class: GraphDecoder

Hook for subclasses to process a non-fixed node before it is added to the graph.

Overrides:

handleFloatingNodeBeforeAdd in class GraphDecoder

Parameters:

methodScope - The current method.

loopScope - The current loop.

node - The node to be canonicalized.

Returns:

The replacement for the node, or the node itself.

addFloatingNode

protected Node addFloatingNode(GraphDecoder.MethodScope methodScope,
                               Node node)

Overrides:

addFloatingNode in class GraphDecoder