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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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| 1721 __ IncrementCounter(isolate()->counters()->cow_arrays_created_stub(), 1); | 1721 __ IncrementCounter(isolate()->counters()->cow_arrays_created_stub(), 1); |
| 1722 __ mov(ebx, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); | 1722 __ mov(ebx, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1723 __ mov(eax, FieldOperand(ebx, JSFunction::kLiteralsOffset)); | 1723 __ mov(eax, FieldOperand(ebx, JSFunction::kLiteralsOffset)); |
| 1724 __ mov(ebx, Immediate(Smi::FromInt(expr->literal_index()))); | 1724 __ mov(ebx, Immediate(Smi::FromInt(expr->literal_index()))); |
| 1725 __ mov(ecx, Immediate(constant_elements)); | 1725 __ mov(ecx, Immediate(constant_elements)); |
| 1726 FastCloneShallowArrayStub stub( | 1726 FastCloneShallowArrayStub stub( |
| 1727 FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS, | 1727 FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS, |
| 1728 DONT_TRACK_ALLOCATION_SITE, | 1728 DONT_TRACK_ALLOCATION_SITE, |
| 1729 length); | 1729 length); |
| 1730 __ CallStub(&stub); | 1730 __ CallStub(&stub); |
| 1731 } else if (expr->depth() > 1) { | 1731 } else if (expr->depth() > 1 || |
| 1732 Serializer::enabled() || |
| 1733 length > FastCloneShallowArrayStub::kMaximumClonedLength) { |
| 1732 __ mov(ebx, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); | 1734 __ mov(ebx, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1733 __ push(FieldOperand(ebx, JSFunction::kLiteralsOffset)); | 1735 __ push(FieldOperand(ebx, JSFunction::kLiteralsOffset)); |
| 1734 __ push(Immediate(Smi::FromInt(expr->literal_index()))); | 1736 __ push(Immediate(Smi::FromInt(expr->literal_index()))); |
| 1735 __ push(Immediate(constant_elements)); | 1737 __ push(Immediate(constant_elements)); |
| 1736 __ CallRuntime(Runtime::kCreateArrayLiteral, 3); | 1738 __ CallRuntime(Runtime::kCreateArrayLiteral, 3); |
| 1737 } else if (Serializer::enabled() || | |
| 1738 length > FastCloneShallowArrayStub::kMaximumClonedLength) { | |
| 1739 __ mov(ebx, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); | |
| 1740 __ push(FieldOperand(ebx, JSFunction::kLiteralsOffset)); | |
| 1741 __ push(Immediate(Smi::FromInt(expr->literal_index()))); | |
| 1742 __ push(Immediate(constant_elements)); | |
| 1743 __ CallRuntime(Runtime::kCreateArrayLiteralShallow, 3); | |
| 1744 } else { | 1739 } else { |
| 1745 ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind) || | 1740 ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind) || |
| 1746 FLAG_smi_only_arrays); | 1741 FLAG_smi_only_arrays); |
| 1747 FastCloneShallowArrayStub::Mode mode = | 1742 FastCloneShallowArrayStub::Mode mode = |
| 1748 FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS; | 1743 FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS; |
| 1749 AllocationSiteMode allocation_site_mode = FLAG_track_allocation_sites | 1744 AllocationSiteMode allocation_site_mode = FLAG_track_allocation_sites |
| 1750 ? TRACK_ALLOCATION_SITE : DONT_TRACK_ALLOCATION_SITE; | 1745 ? TRACK_ALLOCATION_SITE : DONT_TRACK_ALLOCATION_SITE; |
| 1751 | 1746 |
| 1752 // If the elements are already FAST_*_ELEMENTS, the boilerplate cannot | 1747 // If the elements are already FAST_*_ELEMENTS, the boilerplate cannot |
| 1753 // change, so it's possible to specialize the stub in advance. | 1748 // change, so it's possible to specialize the stub in advance. |
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| 4957 | 4952 |
| 4958 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4953 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
| 4959 Assembler::target_address_at(call_target_address)); | 4954 Assembler::target_address_at(call_target_address)); |
| 4960 return OSR_AFTER_STACK_CHECK; | 4955 return OSR_AFTER_STACK_CHECK; |
| 4961 } | 4956 } |
| 4962 | 4957 |
| 4963 | 4958 |
| 4964 } } // namespace v8::internal | 4959 } } // namespace v8::internal |
| 4965 | 4960 |
| 4966 #endif // V8_TARGET_ARCH_IA32 | 4961 #endif // V8_TARGET_ARCH_IA32 |
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