OLD | NEW |
1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/compiler/ast-loop-assignment-analyzer.h" | 5 #include "src/compiler/ast-loop-assignment-analyzer.h" |
6 #include "src/compiler.h" | 6 #include "src/compiler.h" |
7 #include "src/parsing/parser.h" | 7 #include "src/parsing/parser.h" |
8 | 8 |
9 namespace v8 { | 9 namespace v8 { |
10 namespace internal { | 10 namespace internal { |
(...skipping 270 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
281 } | 281 } |
282 | 282 |
283 | 283 |
284 void ALAA::VisitCountOperation(CountOperation* e) { | 284 void ALAA::VisitCountOperation(CountOperation* e) { |
285 Expression* l = e->expression(); | 285 Expression* l = e->expression(); |
286 Visit(l); | 286 Visit(l); |
287 if (l->IsVariableProxy()) AnalyzeAssignment(l->AsVariableProxy()->var()); | 287 if (l->IsVariableProxy()) AnalyzeAssignment(l->AsVariableProxy()->var()); |
288 } | 288 } |
289 | 289 |
290 | 290 |
| 291 void ALAA::VisitRewritableExpression(RewritableExpression* expr) { |
| 292 Visit(expr->expression()); |
| 293 } |
| 294 |
| 295 |
291 void ALAA::AnalyzeAssignment(Variable* var) { | 296 void ALAA::AnalyzeAssignment(Variable* var) { |
292 if (!loop_stack_.empty() && var->IsStackAllocated()) { | 297 if (!loop_stack_.empty() && var->IsStackAllocated()) { |
293 loop_stack_.back()->Add(GetVariableIndex(info()->scope(), var)); | 298 loop_stack_.back()->Add(GetVariableIndex(info()->scope(), var)); |
294 } | 299 } |
295 } | 300 } |
296 | 301 |
297 | 302 |
298 int ALAA::GetVariableIndex(Scope* scope, Variable* var) { | 303 int ALAA::GetVariableIndex(Scope* scope, Variable* var) { |
299 CHECK(var->IsStackAllocated()); | 304 CHECK(var->IsStackAllocated()); |
300 if (var->is_this()) return 0; | 305 if (var->is_this()) return 0; |
301 if (var->IsParameter()) return 1 + var->index(); | 306 if (var->IsParameter()) return 1 + var->index(); |
302 return 1 + scope->num_parameters() + var->index(); | 307 return 1 + scope->num_parameters() + var->index(); |
303 } | 308 } |
304 | 309 |
305 | 310 |
306 int LoopAssignmentAnalysis::GetAssignmentCountForTesting(Scope* scope, | 311 int LoopAssignmentAnalysis::GetAssignmentCountForTesting(Scope* scope, |
307 Variable* var) { | 312 Variable* var) { |
308 int count = 0; | 313 int count = 0; |
309 int var_index = AstLoopAssignmentAnalyzer::GetVariableIndex(scope, var); | 314 int var_index = AstLoopAssignmentAnalyzer::GetVariableIndex(scope, var); |
310 for (size_t i = 0; i < list_.size(); i++) { | 315 for (size_t i = 0; i < list_.size(); i++) { |
311 if (list_[i].second->Contains(var_index)) count++; | 316 if (list_[i].second->Contains(var_index)) count++; |
312 } | 317 } |
313 return count; | 318 return count; |
314 } | 319 } |
315 } // namespace compiler | 320 } // namespace compiler |
316 } // namespace internal | 321 } // namespace internal |
317 } // namespace v8 | 322 } // namespace v8 |
OLD | NEW |