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Unified Diff: src/compiler/graph-reducer.h

Issue 753073009: [turbofan] Avoid repeatedly revisiting inputs in GraphReducer. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 6 years, 1 month ago
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Index: src/compiler/graph-reducer.h
diff --git a/src/compiler/graph-reducer.h b/src/compiler/graph-reducer.h
index d54c3186c045c7197526c5fa7ddf4dbca1bb7f33..f07fb2bebf431e816270d9281f29a892145e4d38 100644
--- a/src/compiler/graph-reducer.h
+++ b/src/compiler/graph-reducer.h
@@ -68,6 +68,10 @@ class GraphReducer FINAL {
private:
enum class State : uint8_t;
+ struct NodeState {
+ Node* node;
+ int input_index;
+ };
// Reduce a single node.
Reduction Reduce(Node* const);
@@ -77,7 +81,6 @@ class GraphReducer FINAL {
// Node stack operations.
void Pop();
void Push(Node* const);
- Node* Top() const;
// Revisit queue operations.
bool Recurse(Node* const);
@@ -86,7 +89,7 @@ class GraphReducer FINAL {
Graph* graph_;
ZoneVector<Reducer*> reducers_;
ZoneStack<Node*> revisit_;
- ZoneStack<Node*> stack_;
+ ZoneStack<NodeState> stack_;
ZoneDeque<State> state_;
DISALLOW_COPY_AND_ASSIGN(GraphReducer);
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