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Side by Side Diff: runtime/vm/flow_graph.h

Issue 10979078: Revert several inlining related changes. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 2 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #ifndef VM_FLOW_GRAPH_H_ 5 #ifndef VM_FLOW_GRAPH_H_
6 #define VM_FLOW_GRAPH_H_ 6 #define VM_FLOW_GRAPH_H_
7 7
8 #include "vm/growable_array.h" 8 #include "vm/growable_array.h"
9 #include "vm/parser.h" 9 #include "vm/parser.h"
10 10
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33 33
34 private: 34 private:
35 const GrowableArray<BlockEntryInstr*>& block_order_; 35 const GrowableArray<BlockEntryInstr*>& block_order_;
36 intptr_t current_; 36 intptr_t current_;
37 }; 37 };
38 38
39 39
40 // Class to incapsulate the construction and manipulation of the flow graph. 40 // Class to incapsulate the construction and manipulation of the flow graph.
41 class FlowGraph : public ZoneAllocated { 41 class FlowGraph : public ZoneAllocated {
42 public: 42 public:
43 FlowGraph(const FlowGraphBuilder& builder, 43 FlowGraph(const FlowGraphBuilder& builder, GraphEntryInstr* graph_entry);
44 GraphEntryInstr* graph_entry,
45 intptr_t max_block_id);
46 44
47 // Function properties. 45 // Function properties.
48 const ParsedFunction& parsed_function() const { 46 const ParsedFunction& parsed_function() const {
49 return parsed_function_; 47 return parsed_function_;
50 } 48 }
51 intptr_t parameter_count() const { 49 intptr_t parameter_count() const {
52 return num_copied_params_ + num_non_copied_params_; 50 return num_copied_params_ + num_non_copied_params_;
53 } 51 }
54 intptr_t variable_count() const { 52 intptr_t variable_count() const {
55 return parameter_count() + num_stack_locals_; 53 return parameter_count() + num_stack_locals_;
(...skipping 26 matching lines...) Expand all
82 BlockIterator postorder_iterator() const { 80 BlockIterator postorder_iterator() const {
83 return BlockIterator(postorder()); 81 return BlockIterator(postorder());
84 } 82 }
85 83
86 intptr_t current_ssa_temp_index() const { return current_ssa_temp_index_; } 84 intptr_t current_ssa_temp_index() const { return current_ssa_temp_index_; }
87 85
88 intptr_t max_virtual_register_number() const { 86 intptr_t max_virtual_register_number() const {
89 return current_ssa_temp_index(); 87 return current_ssa_temp_index();
90 } 88 }
91 89
92 intptr_t max_block_id() const {
93 return max_block_id_;
94 }
95
96 GraphEntryInstr* graph_entry() const { 90 GraphEntryInstr* graph_entry() const {
97 return graph_entry_; 91 return graph_entry_;
98 } 92 }
99 93
100 ZoneGrowableArray<ReturnInstr*>* exits() const { return exits_; } 94 ZoneGrowableArray<ReturnInstr*>* exits() const { return exits_; }
101 void set_exits(ZoneGrowableArray<ReturnInstr*>* exits) { exits_ = exits; } 95 void set_exits(ZoneGrowableArray<ReturnInstr*>* exits) { exits_ = exits; }
102 96
103 intptr_t alloc_ssa_temp_index() { return current_ssa_temp_index_++; } 97 intptr_t alloc_ssa_temp_index() { return current_ssa_temp_index_++; }
104 98
105 intptr_t InstructionCount() const;
106
107 // Operations on the flow graph. 99 // Operations on the flow graph.
108 void ComputeSSA(intptr_t next_virtual_register_number); 100 void ComputeSSA(intptr_t next_virtual_register_number);
109 void ComputeUseLists(); 101 void ComputeUseLists();
110 102
111 // Finds natural loops in the flow graph and attaches a list of loop 103 // Finds natural loops in the flow graph and attaches a list of loop
112 // body blocks for each loop header. 104 // body blocks for each loop header.
113 void ComputeLoops(GrowableArray<BlockEntryInstr*>* loop_headers); 105 void ComputeLoops(GrowableArray<BlockEntryInstr*>* loop_headers);
114 106
115 void InlineCall(Definition* call, FlowGraph* callee_graph); 107 void InlineCall(Definition* call, FlowGraph* callee_graph);
116 108
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149 const GrowableArray<BitVector*>& dom_frontier); 141 const GrowableArray<BitVector*>& dom_frontier);
150 142
151 void MarkLivePhis(GrowableArray<PhiInstr*>* live_phis); 143 void MarkLivePhis(GrowableArray<PhiInstr*>* live_phis);
152 144
153 // DiscoverBlocks computes parent_ and assigned_vars_ which are then used 145 // DiscoverBlocks computes parent_ and assigned_vars_ which are then used
154 // if/when computing SSA. 146 // if/when computing SSA.
155 GrowableArray<intptr_t> parent_; 147 GrowableArray<intptr_t> parent_;
156 GrowableArray<BitVector*> assigned_vars_; 148 GrowableArray<BitVector*> assigned_vars_;
157 149
158 intptr_t current_ssa_temp_index_; 150 intptr_t current_ssa_temp_index_;
159 intptr_t max_block_id_;
160 151
161 // Flow graph fields. 152 // Flow graph fields.
162 const ParsedFunction& parsed_function_; 153 const ParsedFunction& parsed_function_;
163 const intptr_t num_copied_params_; 154 const intptr_t num_copied_params_;
164 const intptr_t num_non_copied_params_; 155 const intptr_t num_non_copied_params_;
165 const intptr_t num_stack_locals_; 156 const intptr_t num_stack_locals_;
166 GraphEntryInstr* graph_entry_; 157 GraphEntryInstr* graph_entry_;
167 GrowableArray<BlockEntryInstr*> preorder_; 158 GrowableArray<BlockEntryInstr*> preorder_;
168 GrowableArray<BlockEntryInstr*> postorder_; 159 GrowableArray<BlockEntryInstr*> postorder_;
169 GrowableArray<BlockEntryInstr*> reverse_postorder_; 160 GrowableArray<BlockEntryInstr*> reverse_postorder_;
170 ZoneGrowableArray<ReturnInstr*>* exits_; 161 ZoneGrowableArray<ReturnInstr*>* exits_;
171 }; 162 };
172 163
173 } // namespace dart 164 } // namespace dart
174 165
175 #endif // VM_FLOW_GRAPH_H_ 166 #endif // VM_FLOW_GRAPH_H_
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