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/js-graph.h"
9 #include "src/compiler/graph-reducer.h"
10 
11 namespace v8 {
12 namespace internal {
13 
14 // Forward declarations.
15 class CompilationInfo;
16 
17 namespace compiler {
18 
19 // The JSInliner provides the core graph inlining machinery. Note that this
20 // class only deals with the mechanics of how to inline one graph into another,
21 // heuristics that decide what and how much to inline are beyond its scope.
22 class JSInliner final : public AdvancedReducer {
23  public:
JSInliner(Editor * editor,Zone * local_zone,CompilationInfo * info,JSGraph * jsgraph)24   JSInliner(Editor* editor, Zone* local_zone, CompilationInfo* info,
25             JSGraph* jsgraph)
26       : AdvancedReducer(editor),
27         local_zone_(local_zone),
28         info_(info),
29         jsgraph_(jsgraph) {}
30 
31   // Reducer interface, eagerly inlines everything.
32   Reduction Reduce(Node* node) final;
33 
34   // Can be used by inlining heuristics or by testing code directly, without
35   // using the above generic reducer interface of the inlining machinery.
36   Reduction ReduceJSCall(Node* node, Handle<JSFunction> function);
37 
38  private:
39   Zone* local_zone_;
40   CompilationInfo* info_;
41   JSGraph* jsgraph_;
42 
43   Node* CreateArtificialFrameState(Node* node, Node* outer_frame_state,
44                                    int parameter_count,
45                                    FrameStateType frame_state_type,
46                                    Handle<SharedFunctionInfo> shared);
47 
48   Reduction InlineCall(Node* call, Node* new_target, Node* context,
49                        Node* frame_state, Node* start, Node* end);
50 };
51 
52 }  // namespace compiler
53 }  // namespace internal
54 }  // namespace v8
55 
56 #endif  // V8_COMPILER_JS_INLINING_H_
57