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Issue 22852024: Track JS allocations as they arrive with no affection on performance when tracking is switched off (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fix style + rebase Created 7 years, 2 months ago
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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 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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574 "Runtime::AllocateInOldDataSpace"); 574 "Runtime::AllocateInOldDataSpace");
575 Add(ExternalReference::new_space_high_promotion_mode_active_address(isolate). 575 Add(ExternalReference::new_space_high_promotion_mode_active_address(isolate).
576 address(), 576 address(),
577 UNCLASSIFIED, 577 UNCLASSIFIED,
578 62, 578 62,
579 "Heap::NewSpaceAllocationLimitAddress"); 579 "Heap::NewSpaceAllocationLimitAddress");
580 Add(ExternalReference::allocation_sites_list_address(isolate).address(), 580 Add(ExternalReference::allocation_sites_list_address(isolate).address(),
581 UNCLASSIFIED, 581 UNCLASSIFIED,
582 63, 582 63,
583 "Heap::allocation_sites_list_address()"); 583 "Heap::allocation_sites_list_address()");
584 Add(ExternalReference::record_object_allocation_function(isolate).address(),
585 UNCLASSIFIED,
586 64,
587 "HeapProfiler::RecordObjectAllocationFromMasm");
584 588
585 // Add a small set of deopt entry addresses to encoder without generating the 589 // Add a small set of deopt entry addresses to encoder without generating the
586 // deopt table code, which isn't possible at deserialization time. 590 // deopt table code, which isn't possible at deserialization time.
587 HandleScope scope(isolate); 591 HandleScope scope(isolate);
588 for (int entry = 0; entry < kDeoptTableSerializeEntryCount; ++entry) { 592 for (int entry = 0; entry < kDeoptTableSerializeEntryCount; ++entry) {
589 Address address = Deoptimizer::GetDeoptimizationEntry( 593 Address address = Deoptimizer::GetDeoptimizationEntry(
590 isolate, 594 isolate,
591 entry, 595 entry,
592 Deoptimizer::LAZY, 596 Deoptimizer::LAZY,
593 Deoptimizer::CALCULATE_ENTRY_ADDRESS); 597 Deoptimizer::CALCULATE_ENTRY_ADDRESS);
594 Add(address, LAZY_DEOPTIMIZATION, 64 + entry, "lazy_deopt"); 598 Add(address, LAZY_DEOPTIMIZATION, 65 + entry, "lazy_deopt");
595 } 599 }
596 } 600 }
597 601
598 602
599 ExternalReferenceEncoder::ExternalReferenceEncoder(Isolate* isolate) 603 ExternalReferenceEncoder::ExternalReferenceEncoder(Isolate* isolate)
600 : encodings_(Match), 604 : encodings_(Match),
601 isolate_(isolate) { 605 isolate_(isolate) {
602 ExternalReferenceTable* external_references = 606 ExternalReferenceTable* external_references =
603 ExternalReferenceTable::instance(isolate_); 607 ExternalReferenceTable::instance(isolate_);
604 for (int i = 0; i < external_references->size(); ++i) { 608 for (int i = 0; i < external_references->size(); ++i) {
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1857 1861
1858 bool SnapshotByteSource::AtEOF() { 1862 bool SnapshotByteSource::AtEOF() {
1859 if (0u + length_ - position_ > 2 * sizeof(uint32_t)) return false; 1863 if (0u + length_ - position_ > 2 * sizeof(uint32_t)) return false;
1860 for (int x = position_; x < length_; x++) { 1864 for (int x = position_; x < length_; x++) {
1861 if (data_[x] != SerializerDeserializer::nop()) return false; 1865 if (data_[x] != SerializerDeserializer::nop()) return false;
1862 } 1866 }
1863 return true; 1867 return true;
1864 } 1868 }
1865 1869
1866 } } // namespace v8::internal 1870 } } // namespace v8::internal
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