1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_COMPILER_JS_INLINING_H_ 6 #define V8_COMPILER_JS_INLINING_H_ 7 8 #include "src/compiler/graph-reducer.h" 9 #include "src/compiler/js-graph.h" 10 11 namespace v8 { 12 namespace internal { 13 14 class BailoutId; 15 class OptimizedCompilationInfo; 16 17 namespace compiler { 18 19 class SourcePositionTable; 20 21 // The JSInliner provides the core graph inlining machinery. Note that this 22 // class only deals with the mechanics of how to inline one graph into another, 23 // heuristics that decide what and how much to inline are beyond its scope. 24 class JSInliner final : public AdvancedReducer { 25 public: JSInliner(Editor * editor,Zone * local_zone,OptimizedCompilationInfo * info,JSGraph * jsgraph,SourcePositionTable * source_positions)26 JSInliner(Editor* editor, Zone* local_zone, OptimizedCompilationInfo* info, 27 JSGraph* jsgraph, SourcePositionTable* source_positions) 28 : AdvancedReducer(editor), 29 local_zone_(local_zone), 30 info_(info), 31 jsgraph_(jsgraph), 32 source_positions_(source_positions) {} 33 reducer_name()34 const char* reducer_name() const override { return "JSInliner"; } 35 36 // Reducer interface, eagerly inlines everything. 37 Reduction Reduce(Node* node) final; 38 39 // Can be used by inlining heuristics or by testing code directly, without 40 // using the above generic reducer interface of the inlining machinery. 41 Reduction ReduceJSCall(Node* node); 42 43 private: zone()44 Zone* zone() const { return local_zone_; } 45 CommonOperatorBuilder* common() const; 46 JSOperatorBuilder* javascript() const; 47 SimplifiedOperatorBuilder* simplified() const; 48 Graph* graph() const; jsgraph()49 JSGraph* jsgraph() const { return jsgraph_; } isolate()50 Isolate* isolate() const { return jsgraph_->isolate(); } 51 Handle<Context> native_context() const; 52 53 Zone* const local_zone_; 54 OptimizedCompilationInfo* info_; 55 JSGraph* const jsgraph_; 56 SourcePositionTable* const source_positions_; 57 58 bool DetermineCallTarget(Node* node, 59 Handle<SharedFunctionInfo>& shared_info_out); 60 void DetermineCallContext(Node* node, Node*& context_out, 61 Handle<FeedbackVector>& feedback_vector_out); 62 63 Node* CreateArtificialFrameState(Node* node, Node* outer_frame_state, 64 int parameter_count, BailoutId bailout_id, 65 FrameStateType frame_state_type, 66 Handle<SharedFunctionInfo> shared); 67 68 Reduction InlineCall(Node* call, Node* new_target, Node* context, 69 Node* frame_state, Node* start, Node* end, 70 Node* exception_target, 71 const NodeVector& uncaught_subcalls); 72 }; 73 74 } // namespace compiler 75 } // namespace internal 76 } // namespace v8 77 78 #endif // V8_COMPILER_JS_INLINING_H_ 79