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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_BUILDER_H_ | 5 #ifndef VM_FLOW_GRAPH_BUILDER_H_ |
| 6 #define VM_FLOW_GRAPH_BUILDER_H_ | 6 #define VM_FLOW_GRAPH_BUILDER_H_ |
| 7 | 7 |
| 8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
| 9 #include "vm/ast.h" | 9 #include "vm/ast.h" |
| 10 #include "vm/growable_array.h" | 10 #include "vm/growable_array.h" |
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| 211 | 211 |
| 212 Value* value() const { return value_; } | 212 Value* value() const { return value_; } |
| 213 | 213 |
| 214 protected: | 214 protected: |
| 215 // Output parameters. | 215 // Output parameters. |
| 216 Value* value_; | 216 Value* value_; |
| 217 | 217 |
| 218 private: | 218 private: |
| 219 // Helper to set the output state to return a Value. | 219 // Helper to set the output state to return a Value. |
| 220 virtual void ReturnValue(Value* value) { | 220 virtual void ReturnValue(Value* value) { |
| 221 ASSERT(value->IsUse() || value->IsTemp()); | 221 ASSERT(value->IsUse()); |
| 222 value_ = value; | 222 value_ = value; |
| 223 } | 223 } |
| 224 | 224 |
| 225 // Specify a computation as the final result. Adds a Bind instruction to | 225 // Specify a computation as the final result. Adds a Bind instruction to |
| 226 // the graph and returns its temporary value (i.e., set the output | 226 // the graph and returns its temporary value (i.e., set the output |
| 227 // parameters). | 227 // parameters). |
| 228 virtual void ReturnComputation(Computation* computation) { | 228 virtual void ReturnComputation(Computation* computation) { |
| 229 BindInstr* defn = new BindInstr(computation); | 229 BindInstr* defn = new BindInstr(computation); |
| 230 AddInstruction(defn); | 230 AddInstruction(defn); |
| 231 ReturnValue(new UseVal(defn)); | 231 ReturnValue(new UseVal(defn)); |
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| 285 // Output parameters. | 285 // Output parameters. |
| 286 TargetEntryInstr** true_successor_address_; | 286 TargetEntryInstr** true_successor_address_; |
| 287 TargetEntryInstr** false_successor_address_; | 287 TargetEntryInstr** false_successor_address_; |
| 288 | 288 |
| 289 intptr_t condition_token_index_; | 289 intptr_t condition_token_index_; |
| 290 }; | 290 }; |
| 291 | 291 |
| 292 } // namespace dart | 292 } // namespace dart |
| 293 | 293 |
| 294 #endif // VM_FLOW_GRAPH_BUILDER_H_ | 294 #endif // VM_FLOW_GRAPH_BUILDER_H_ |
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