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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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| 656 // Visit the parameters that may be on top of the saved registers. | 656 // Visit the parameters that may be on top of the saved registers. |
| 657 if (safepoint_entry.argument_count() > 0) { | 657 if (safepoint_entry.argument_count() > 0) { |
| 658 v->VisitPointers(parameters_base, | 658 v->VisitPointers(parameters_base, |
| 659 parameters_base + safepoint_entry.argument_count()); | 659 parameters_base + safepoint_entry.argument_count()); |
| 660 parameters_base += safepoint_entry.argument_count(); | 660 parameters_base += safepoint_entry.argument_count(); |
| 661 } | 661 } |
| 662 | 662 |
| 663 // Skip saved double registers. | 663 // Skip saved double registers. |
| 664 if (safepoint_entry.has_doubles()) { | 664 if (safepoint_entry.has_doubles()) { |
| 665 // Number of doubles not known at snapshot time. | 665 // Number of doubles not known at snapshot time. |
| 666 ASSERT(!Serializer::enabled()); | 666 ASSERT(!Serializer::enabled(isolate())); |
| 667 parameters_base += DoubleRegister::NumAllocatableRegisters() * | 667 parameters_base += DoubleRegister::NumAllocatableRegisters() * |
| 668 kDoubleSize / kPointerSize; | 668 kDoubleSize / kPointerSize; |
| 669 } | 669 } |
| 670 | 670 |
| 671 // Visit the registers that contain pointers if any. | 671 // Visit the registers that contain pointers if any. |
| 672 if (safepoint_entry.HasRegisters()) { | 672 if (safepoint_entry.HasRegisters()) { |
| 673 for (int i = kNumSafepointRegisters - 1; i >=0; i--) { | 673 for (int i = kNumSafepointRegisters - 1; i >=0; i--) { |
| 674 if (safepoint_entry.HasRegisterAt(i)) { | 674 if (safepoint_entry.HasRegisterAt(i)) { |
| 675 int reg_stack_index = MacroAssembler::SafepointRegisterStackIndex(i); | 675 int reg_stack_index = MacroAssembler::SafepointRegisterStackIndex(i); |
| 676 v->VisitPointer(parameters_base + reg_stack_index); | 676 v->VisitPointer(parameters_base + reg_stack_index); |
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| 1639 ZoneList<StackFrame*> list(10, zone); | 1639 ZoneList<StackFrame*> list(10, zone); |
| 1640 for (StackFrameIterator it(isolate); !it.done(); it.Advance()) { | 1640 for (StackFrameIterator it(isolate); !it.done(); it.Advance()) { |
| 1641 StackFrame* frame = AllocateFrameCopy(it.frame(), zone); | 1641 StackFrame* frame = AllocateFrameCopy(it.frame(), zone); |
| 1642 list.Add(frame, zone); | 1642 list.Add(frame, zone); |
| 1643 } | 1643 } |
| 1644 return list.ToVector(); | 1644 return list.ToVector(); |
| 1645 } | 1645 } |
| 1646 | 1646 |
| 1647 | 1647 |
| 1648 } } // namespace v8::internal | 1648 } } // namespace v8::internal |
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