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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 "v8.h" | 5 #include "v8.h" |
6 #include "lithium.h" | 6 #include "lithium.h" |
7 #include "scopes.h" | 7 #include "scopes.h" |
8 | 8 |
9 #if V8_TARGET_ARCH_IA32 | 9 #if V8_TARGET_ARCH_IA32 |
10 #include "ia32/lithium-ia32.h" | 10 #include "ia32/lithium-ia32.h" |
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227 } | 227 } |
228 | 228 |
229 | 229 |
230 LChunk::LChunk(CompilationInfo* info, HGraph* graph) | 230 LChunk::LChunk(CompilationInfo* info, HGraph* graph) |
231 : spill_slot_count_(0), | 231 : spill_slot_count_(0), |
232 info_(info), | 232 info_(info), |
233 graph_(graph), | 233 graph_(graph), |
234 instructions_(32, graph->zone()), | 234 instructions_(32, graph->zone()), |
235 pointer_maps_(8, graph->zone()), | 235 pointer_maps_(8, graph->zone()), |
236 inlined_closures_(1, graph->zone()), | 236 inlined_closures_(1, graph->zone()), |
237 deprecation_dependencies_(MapLess(), MapAllocator(graph->zone())) { | 237 deprecation_dependencies_(MapLess(), MapAllocator(graph->zone())), |
| 238 stability_dependencies_(MapLess(), MapAllocator(graph->zone())) { |
238 } | 239 } |
239 | 240 |
240 | 241 |
241 LLabel* LChunk::GetLabel(int block_id) const { | 242 LLabel* LChunk::GetLabel(int block_id) const { |
242 HBasicBlock* block = graph_->blocks()->at(block_id); | 243 HBasicBlock* block = graph_->blocks()->at(block_id); |
243 int first_instruction = block->first_instruction_index(); | 244 int first_instruction = block->first_instruction_index(); |
244 return LLabel::cast(instructions_[first_instruction]); | 245 return LLabel::cast(instructions_[first_instruction]); |
245 } | 246 } |
246 | 247 |
247 | 248 |
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375 | 376 |
376 void LChunk::CommitDependencies(Handle<Code> code) const { | 377 void LChunk::CommitDependencies(Handle<Code> code) const { |
377 for (MapSet::const_iterator it = deprecation_dependencies_.begin(), | 378 for (MapSet::const_iterator it = deprecation_dependencies_.begin(), |
378 iend = deprecation_dependencies_.end(); it != iend; ++it) { | 379 iend = deprecation_dependencies_.end(); it != iend; ++it) { |
379 Handle<Map> map = *it; | 380 Handle<Map> map = *it; |
380 ASSERT(!map->is_deprecated()); | 381 ASSERT(!map->is_deprecated()); |
381 ASSERT(map->CanBeDeprecated()); | 382 ASSERT(map->CanBeDeprecated()); |
382 Map::AddDependentCode(map, DependentCode::kTransitionGroup, code); | 383 Map::AddDependentCode(map, DependentCode::kTransitionGroup, code); |
383 } | 384 } |
384 | 385 |
| 386 for (MapSet::const_iterator it = stability_dependencies_.begin(), |
| 387 iend = stability_dependencies_.end(); it != iend; ++it) { |
| 388 Handle<Map> map = *it; |
| 389 ASSERT(map->is_stable()); |
| 390 ASSERT(map->CanTransition()); |
| 391 Map::AddDependentCode(map, DependentCode::kPrototypeCheckGroup, code); |
| 392 } |
| 393 |
385 info_->CommitDependencies(code); | 394 info_->CommitDependencies(code); |
386 } | 395 } |
387 | 396 |
388 | 397 |
389 LChunk* LChunk::NewChunk(HGraph* graph) { | 398 LChunk* LChunk::NewChunk(HGraph* graph) { |
390 DisallowHandleAllocation no_handles; | 399 DisallowHandleAllocation no_handles; |
391 DisallowHeapAllocation no_gc; | 400 DisallowHeapAllocation no_gc; |
392 graph->DisallowAddingNewValues(); | 401 graph->DisallowAddingNewValues(); |
393 int values = graph->GetMaximumValueID(); | 402 int values = graph->GetMaximumValueID(); |
394 CompilationInfo* info = graph->info(); | 403 CompilationInfo* info = graph->info(); |
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602 | 611 |
603 | 612 |
604 LPhase::~LPhase() { | 613 LPhase::~LPhase() { |
605 if (ShouldProduceTraceOutput()) { | 614 if (ShouldProduceTraceOutput()) { |
606 isolate()->GetHTracer()->TraceLithium(name(), chunk_); | 615 isolate()->GetHTracer()->TraceLithium(name(), chunk_); |
607 } | 616 } |
608 } | 617 } |
609 | 618 |
610 | 619 |
611 } } // namespace v8::internal | 620 } } // namespace v8::internal |
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