| // Copyright 2013 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_COMPILER_NODE_H_ |
| #define V8_COMPILER_NODE_H_ |
| |
| #include <deque> |
| #include <set> |
| #include <vector> |
| |
| #include "src/compiler/generic-algorithm.h" |
| #include "src/compiler/generic-node.h" |
| #include "src/compiler/opcodes.h" |
| #include "src/compiler/operator.h" |
| #include "src/types.h" |
| #include "src/zone.h" |
| #include "src/zone-allocator.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| class NodeData { |
| public: |
| const Operator* op() const { return op_; } |
| void set_op(const Operator* op) { op_ = op; } |
| |
| IrOpcode::Value opcode() const { |
| DCHECK(op_->opcode() <= IrOpcode::kLast); |
| return static_cast<IrOpcode::Value>(op_->opcode()); |
| } |
| |
| protected: |
| const Operator* op_; |
| Bounds bounds_; |
| explicit NodeData(Zone* zone) {} |
| |
| friend class NodeProperties; |
| Bounds bounds() { return bounds_; } |
| void set_bounds(Bounds b) { bounds_ = b; } |
| }; |
| |
| // A Node is the basic primitive of an IR graph. In addition to the members |
| // inherited from Vector, Nodes only contain a mutable Operator that may change |
| // during compilation, e.g. during lowering passes. Other information that |
| // needs to be associated with Nodes during compilation must be stored |
| // out-of-line indexed by the Node's id. |
| class Node FINAL : public GenericNode<NodeData, Node> { |
| public: |
| Node(GenericGraphBase* graph, int input_count, int reserve_input_count) |
| : GenericNode<NodeData, Node>(graph, input_count, reserve_input_count) {} |
| |
| void Initialize(const Operator* op) { set_op(op); } |
| |
| bool IsDead() const { return InputCount() > 0 && InputAt(0) == NULL; } |
| void Kill(); |
| |
| void CollectProjections(ZoneVector<Node*>* projections); |
| Node* FindProjection(size_t projection_index); |
| }; |
| |
| std::ostream& operator<<(std::ostream& os, const Node& n); |
| |
| typedef GenericGraphVisit::NullNodeVisitor<NodeData, Node> NullNodeVisitor; |
| |
| typedef std::set<Node*, std::less<Node*>, zone_allocator<Node*> > NodeSet; |
| typedef NodeSet::iterator NodeSetIter; |
| typedef NodeSet::reverse_iterator NodeSetRIter; |
| |
| typedef ZoneVector<Node*> NodeVector; |
| typedef NodeVector::iterator NodeVectorIter; |
| typedef NodeVector::const_iterator NodeVectorConstIter; |
| typedef NodeVector::reverse_iterator NodeVectorRIter; |
| |
| typedef ZoneVector<NodeVector> NodeVectorVector; |
| typedef NodeVectorVector::iterator NodeVectorVectorIter; |
| typedef NodeVectorVector::reverse_iterator NodeVectorVectorRIter; |
| |
| typedef Node::Uses::iterator UseIter; |
| typedef Node::Inputs::iterator InputIter; |
| |
| // Helper to extract parameters from Operator1<*> nodes. |
| template <typename T> |
| static inline const T& OpParameter(const Node* node) { |
| return OpParameter<T>(node->op()); |
| } |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_COMPILER_NODE_H_ |