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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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1709 int length = subexprs->length(); | 1709 int length = subexprs->length(); |
1710 Handle<FixedArray> constant_elements = expr->constant_elements(); | 1710 Handle<FixedArray> constant_elements = expr->constant_elements(); |
1711 ASSERT_EQ(2, constant_elements->length()); | 1711 ASSERT_EQ(2, constant_elements->length()); |
1712 ElementsKind constant_elements_kind = | 1712 ElementsKind constant_elements_kind = |
1713 static_cast<ElementsKind>(Smi::cast(constant_elements->get(0))->value()); | 1713 static_cast<ElementsKind>(Smi::cast(constant_elements->get(0))->value()); |
1714 bool has_constant_fast_elements = | 1714 bool has_constant_fast_elements = |
1715 IsFastObjectElementsKind(constant_elements_kind); | 1715 IsFastObjectElementsKind(constant_elements_kind); |
1716 Handle<FixedArrayBase> constant_elements_values( | 1716 Handle<FixedArrayBase> constant_elements_values( |
1717 FixedArrayBase::cast(constant_elements->get(1))); | 1717 FixedArrayBase::cast(constant_elements->get(1))); |
1718 | 1718 |
1719 AllocationSiteMode allocation_site_mode = FLAG_track_allocation_sites | 1719 AllocationSiteMode allocation_site_mode = TRACK_ALLOCATION_SITE; |
1720 ? TRACK_ALLOCATION_SITE : DONT_TRACK_ALLOCATION_SITE; | |
1721 if (has_constant_fast_elements && !FLAG_allocation_site_pretenuring) { | 1720 if (has_constant_fast_elements && !FLAG_allocation_site_pretenuring) { |
1722 // If the only customer of allocation sites is transitioning, then | 1721 // If the only customer of allocation sites is transitioning, then |
1723 // we can turn it off if we don't have anywhere else to transition to. | 1722 // we can turn it off if we don't have anywhere else to transition to. |
1724 allocation_site_mode = DONT_TRACK_ALLOCATION_SITE; | 1723 allocation_site_mode = DONT_TRACK_ALLOCATION_SITE; |
1725 } | 1724 } |
1726 | 1725 |
1727 Heap* heap = isolate()->heap(); | 1726 Heap* heap = isolate()->heap(); |
1728 if (has_constant_fast_elements && | 1727 if (has_constant_fast_elements && |
1729 constant_elements_values->map() == heap->fixed_cow_array_map()) { | 1728 constant_elements_values->map() == heap->fixed_cow_array_map()) { |
1730 // If the elements are already FAST_*_ELEMENTS, the boilerplate cannot | 1729 // If the elements are already FAST_*_ELEMENTS, the boilerplate cannot |
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4909 | 4908 |
4910 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4909 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4911 Assembler::target_address_at(call_target_address)); | 4910 Assembler::target_address_at(call_target_address)); |
4912 return OSR_AFTER_STACK_CHECK; | 4911 return OSR_AFTER_STACK_CHECK; |
4913 } | 4912 } |
4914 | 4913 |
4915 | 4914 |
4916 } } // namespace v8::internal | 4915 } } // namespace v8::internal |
4917 | 4916 |
4918 #endif // V8_TARGET_ARCH_IA32 | 4917 #endif // V8_TARGET_ARCH_IA32 |
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