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src/compiler/node-properties.h

+// 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_PROPERTIES_H_
+#define V8_COMPILER_NODE_PROPERTIES_H_
+
+#include "src/v8.h"
+
+#include "src/types.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+class Node;
+class Operator;
+
+// A facade that simplifies access to the different kinds of inputs to a node.
+class NodeProperties {
+ public:
+  static inline bool HasValueInput(Node* node);
+  static inline bool HasContextInput(Node* node);
+  static inline bool HasEffectInput(Node* node);
+  static inline bool HasControlInput(Node* node);
+
+  static inline int GetValueInputCount(Node* node);
+  static inline int GetContextInputCount(Node* node);
+  static inline int GetEffectInputCount(Node* node);
+  static inline int GetControlInputCount(Node* node);
+
+  static inline Node* GetValueInput(Node* node, int index);
+  static inline Node* GetContextInput(Node* node);
+  static inline Node* GetEffectInput(Node* node, int index = 0);
+  static inline Node* GetControlInput(Node* node, int index = 0);
+
+  static inline bool HasValueOutput(Node* node);
+  static inline bool HasEffectOutput(Node* node);
+  static inline bool HasControlOutput(Node* node);
+
+  static inline int GetValueOutputCount(Node* node);
+  static inline int GetEffectOutputCount(Node* node);
+  static inline int GetControlOutputCount(Node* node);
+
+  static inline bool IsValueEdge(Node::Edge edge);
+  static inline bool IsContextEdge(Node::Edge edge);
+  static inline bool IsEffectEdge(Node::Edge edge);
+  static inline bool IsControlEdge(Node::Edge edge);
+
+  static inline bool IsControl(Node* node);
+  static inline bool IsBasicBlockBegin(Node* node);
+
+  static inline bool CanBeScheduled(Node* node);
+  static inline bool HasFixedSchedulePosition(Node* node);
+  static inline bool IsScheduleRoot(Node* node);
+
+  static inline void ReplaceEffectInput(Node* node, Node* effect,
+                                        int index = 0);
+  static inline void RemoveNonValueInputs(Node* node);
+
+  static inline Bounds GetBounds(Node* node);
+  static inline void SetBounds(Node* node, Bounds bounds);
+
+  static inline bool CanLazilyDeoptimize(Node* node);
+
+ private:
+  static inline int FirstValueIndex(Node* node);
+  static inline int FirstContextIndex(Node* node);
+  static inline int FirstEffectIndex(Node* node);
+  static inline int FirstControlIndex(Node* node);
+  static inline int PastValueIndex(Node* node);
+  static inline int PastContextIndex(Node* node);
+  static inline int PastEffectIndex(Node* node);
+  static inline int PastControlIndex(Node* node);
+
+  static inline bool IsInputRange(Node::Edge edge, int first, int count);
+};
+}
+}
+}  // namespace v8::internal::compiler
+
+#endif  // V8_COMPILER_NODE_PROPERTIES_H_