v8::internal::compiler::CopyVisitor Class Reference

Inheritance diagram for v8::internal::compiler::CopyVisitor:

Collaboration diagram for v8::internal::compiler::CopyVisitor:

Public Member Functions
	CopyVisitor (Graph *source_graph, Graph *target_graph, Zone *temp_zone)
GenericGraphVisit::Control	Post (Node *original)
Node *	GetCopy (Node *original)
void	CopyGraph ()
const NodeVector &	copies ()
Public Member Functions inherited from v8::internal::compiler::GenericGraphVisit::NullNodeVisitor< B, S >
Control	Pre (GenericNode< B, S > *node)
Control	Post (GenericNode< B, S > *node)
void	PreEdge (GenericNode< B, S > *from, int index, GenericNode< B, S > *to)
void	PostEdge (GenericNode< B, S > *from, int index, GenericNode< B, S > *to)

Private Member Functions
void	ReplaceSentinels ()
Node *	GetSentinel (Node *original)

Private Attributes
NodeVector	copies_
NodeVector	sentinels_
Graph *	source_graph_
Graph *	target_graph_
Zone *	temp_zone_
SimpleOperator	sentinel_op_

Detailed Description

Definition at line 162 of file js-inlining.cc.

Constructor & Destructor Documentation

CopyVisitor()

v8::internal::compiler::CopyVisitor::CopyVisitor ( Graph *  source_graph, Graph *  target_graph, Zone *  temp_zone  )

inline

Definition at line 164 of file js-inlining.cc.

      : copies_(source_graph->NodeCount(), NULL, temp_zone),
        sentinels_(source_graph->NodeCount(), NULL, temp_zone),
        source_graph_(source_graph),
        target_graph_(target_graph),
        temp_zone_(temp_zone),
        sentinel_op_(IrOpcode::kDead, Operator::kNoProperties, 0, 0,
                     "sentinel") {}

Member Function Documentation

copies()

const NodeVector& v8::internal::compiler::CopyVisitor::copies ( )

inline

Definition at line 203 of file js-inlining.cc.

{ return copies_; }

References copies_.

Referenced by v8::internal::compiler::JSInliner::TryInlineCall().

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CopyGraph()

void v8::internal::compiler::CopyVisitor::CopyGraph ( )

inline

Definition at line 198 of file js-inlining.cc.

                   {
    source_graph_->VisitNodeInputsFromEnd(this);
    ReplaceSentinels();
  }

References ReplaceSentinels(), source_graph_, and v8::internal::compiler::Graph::VisitNodeInputsFromEnd().

Referenced by v8::internal::compiler::JSInliner::TryInlineCall().

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GetCopy()

Node* v8::internal::compiler::CopyVisitor::GetCopy ( Node *  original )

inline

Definition at line 189 of file js-inlining.cc.

                                {
    Node* copy = copies_[original->id()];
    if (copy == NULL) {
      copy = GetSentinel(original);
    }
    DCHECK_NE(NULL, copy);
    return copy;
  }

References copies_, DCHECK_NE, GetSentinel(), and NULL.

Referenced by Post(), and v8::internal::compiler::JSInliner::TryInlineCall().

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GetSentinel()

Node* v8::internal::compiler::CopyVisitor::GetSentinel ( Node *  original )

inlineprivate

Definition at line 216 of file js-inlining.cc.

                                    {
    Node* sentinel = sentinels_[original->id()];
    if (sentinel == NULL) {
      sentinel = target_graph_->NewNode(&sentinel_op_);
    }
    return sentinel;
  }

References v8::internal::compiler::Graph::NewNode(), NULL, sentinel_op_, sentinels_, and target_graph_.

Referenced by GetCopy().

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Post()

GenericGraphVisit::Control v8::internal::compiler::CopyVisitor::Post ( Node *  original )

inline

Definition at line 173 of file js-inlining.cc.

                                                {
    NodeVector inputs(temp_zone_);
    for (InputIter it = original->inputs().begin();
         it != original->inputs().end(); ++it) {
      inputs.push_back(GetCopy(*it));
    }
 
    // Reuse the operator in the copy. This assumes that op lives in a zone
    // that lives longer than graph()'s zone.
    Node* copy =
        target_graph_->NewNode(original->op(), static_cast<int>(inputs.size()),
                               (inputs.empty() ? NULL : &inputs.front()));
    copies_[original->id()] = copy;
    return GenericGraphVisit::CONTINUE;
  }

References v8::internal::compiler::GenericGraphVisit::CONTINUE, copies_, GetCopy(), v8::internal::compiler::Graph::NewNode(), NULL, target_graph_, and temp_zone_.

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ReplaceSentinels()

void v8::internal::compiler::CopyVisitor::ReplaceSentinels ( )

inlineprivate

Definition at line 206 of file js-inlining.cc.

                          {
    for (NodeId id = 0; id < source_graph_->NodeCount(); ++id) {
      Node* sentinel = sentinels_[id];
      if (sentinel == NULL) continue;
      Node* copy = copies_[id];
      DCHECK_NE(NULL, copy);
      sentinel->ReplaceUses(copy);
    }
  }

References copies_, DCHECK_NE, v8::internal::compiler::GenericGraphBase::NodeCount(), NULL, sentinels_, and source_graph_.

Referenced by CopyGraph().

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Member Data Documentation

copies_

NodeVector v8::internal::compiler::CopyVisitor::copies_

private

Definition at line 224 of file js-inlining.cc.

Referenced by copies(), GetCopy(), Post(), and ReplaceSentinels().

sentinel_op_

SimpleOperator v8::internal::compiler::CopyVisitor::sentinel_op_

private

Definition at line 229 of file js-inlining.cc.

Referenced by GetSentinel().

sentinels_

NodeVector v8::internal::compiler::CopyVisitor::sentinels_

private

Definition at line 225 of file js-inlining.cc.

Referenced by GetSentinel(), and ReplaceSentinels().

source_graph_

Graph* v8::internal::compiler::CopyVisitor::source_graph_

private

Definition at line 226 of file js-inlining.cc.

Referenced by CopyGraph(), and ReplaceSentinels().

target_graph_

Graph* v8::internal::compiler::CopyVisitor::target_graph_

private

Definition at line 227 of file js-inlining.cc.

Referenced by GetSentinel(), and Post().

temp_zone_

Zone* v8::internal::compiler::CopyVisitor::temp_zone_

private

Definition at line 228 of file js-inlining.cc.

Referenced by Post().

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The documentation for this class was generated from the following file:

• /mnt/V8SourceCode/src/compiler/js-inlining.cc