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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 { |
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290 Visit(expr->expression()); | 290 Visit(expr->expression()); |
291 } | 291 } |
292 | 292 |
293 | 293 |
294 void ALAA::AnalyzeAssignment(Variable* var) { | 294 void ALAA::AnalyzeAssignment(Variable* var) { |
295 if (!loop_stack_.empty() && var->IsStackAllocated()) { | 295 if (!loop_stack_.empty() && var->IsStackAllocated()) { |
296 loop_stack_.back()->Add(GetVariableIndex(info()->scope(), var)); | 296 loop_stack_.back()->Add(GetVariableIndex(info()->scope(), var)); |
297 } | 297 } |
298 } | 298 } |
299 | 299 |
300 | 300 int ALAA::GetVariableIndex(DeclarationScope* scope, Variable* var) { |
301 int ALAA::GetVariableIndex(Scope* scope, Variable* var) { | |
302 CHECK(var->IsStackAllocated()); | 301 CHECK(var->IsStackAllocated()); |
303 if (var->is_this()) return 0; | 302 if (var->is_this()) return 0; |
304 if (var->IsParameter()) return 1 + var->index(); | 303 if (var->IsParameter()) return 1 + var->index(); |
305 return 1 + scope->num_parameters() + var->index(); | 304 return 1 + scope->num_parameters() + var->index(); |
306 } | 305 } |
307 | 306 |
308 | 307 int LoopAssignmentAnalysis::GetAssignmentCountForTesting( |
309 int LoopAssignmentAnalysis::GetAssignmentCountForTesting(Scope* scope, | 308 DeclarationScope* scope, Variable* var) { |
310 Variable* var) { | |
311 int count = 0; | 309 int count = 0; |
312 int var_index = AstLoopAssignmentAnalyzer::GetVariableIndex(scope, var); | 310 int var_index = AstLoopAssignmentAnalyzer::GetVariableIndex(scope, var); |
313 for (size_t i = 0; i < list_.size(); i++) { | 311 for (size_t i = 0; i < list_.size(); i++) { |
314 if (list_[i].second->Contains(var_index)) count++; | 312 if (list_[i].second->Contains(var_index)) count++; |
315 } | 313 } |
316 return count; | 314 return count; |
317 } | 315 } |
318 } // namespace compiler | 316 } // namespace compiler |
319 } // namespace internal | 317 } // namespace internal |
320 } // namespace v8 | 318 } // namespace v8 |
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