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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 "src/v8.h" | 5 #include "src/v8.h" |
| 6 | 6 |
| 7 #include "src/compiler.h" | 7 #include "src/compiler.h" |
| 8 | 8 |
| 9 #include "src/ast-numbering.h" | 9 #include "src/ast-numbering.h" |
| 10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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| 561 int estimate) { | 561 int estimate) { |
| 562 // If no properties are added in the constructor, they are more likely | 562 // If no properties are added in the constructor, they are more likely |
| 563 // to be added later. | 563 // to be added later. |
| 564 if (estimate == 0) estimate = 2; | 564 if (estimate == 0) estimate = 2; |
| 565 | 565 |
| 566 // TODO(yangguo): check whether those heuristics are still up-to-date. | 566 // TODO(yangguo): check whether those heuristics are still up-to-date. |
| 567 // We do not shrink objects that go into a snapshot (yet), so we adjust | 567 // We do not shrink objects that go into a snapshot (yet), so we adjust |
| 568 // the estimate conservatively. | 568 // the estimate conservatively. |
| 569 if (shared->GetIsolate()->serializer_enabled()) { | 569 if (shared->GetIsolate()->serializer_enabled()) { |
| 570 estimate += 2; | 570 estimate += 2; |
| 571 } else if (FLAG_clever_optimizations) { | 571 } else { |
| 572 // Inobject slack tracking will reclaim redundant inobject space later, | 572 // Inobject slack tracking will reclaim redundant inobject space later, |
| 573 // so we can afford to adjust the estimate generously. | 573 // so we can afford to adjust the estimate generously. |
| 574 estimate += 8; | 574 estimate += 8; |
| 575 } else { | |
| 576 estimate += 3; | |
| 577 } | 575 } |
| 578 | 576 |
| 579 shared->set_expected_nof_properties(estimate); | 577 shared->set_expected_nof_properties(estimate); |
| 580 } | 578 } |
| 581 | 579 |
| 582 | 580 |
| 583 static void MaybeDisableOptimization(Handle<SharedFunctionInfo> shared_info, | 581 static void MaybeDisableOptimization(Handle<SharedFunctionInfo> shared_info, |
| 584 BailoutReason bailout_reason) { | 582 BailoutReason bailout_reason) { |
| 585 if (bailout_reason != kNoReason) { | 583 if (bailout_reason != kNoReason) { |
| 586 shared_info->DisableOptimization(bailout_reason); | 584 shared_info->DisableOptimization(bailout_reason); |
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| 1495 AllowHandleDereference allow_deref; | 1493 AllowHandleDereference allow_deref; |
| 1496 bool tracing_on = info()->IsStub() | 1494 bool tracing_on = info()->IsStub() |
| 1497 ? FLAG_trace_hydrogen_stubs | 1495 ? FLAG_trace_hydrogen_stubs |
| 1498 : (FLAG_trace_hydrogen && | 1496 : (FLAG_trace_hydrogen && |
| 1499 info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter)); | 1497 info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter)); |
| 1500 return (tracing_on && | 1498 return (tracing_on && |
| 1501 base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL); | 1499 base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL); |
| 1502 } | 1500 } |
| 1503 | 1501 |
| 1504 } } // namespace v8::internal | 1502 } } // namespace v8::internal |
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