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Issue 257563004: Unify and simplify the FastCloneShallowArrayStub (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Review feedback Created 6 years, 7 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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1838 isolate()->heap()->fixed_cow_array_map()) { 1838 isolate()->heap()->fixed_cow_array_map()) {
1839 FastCloneShallowArrayStub stub( 1839 FastCloneShallowArrayStub stub(
1840 isolate(), 1840 isolate(),
1841 FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS, 1841 FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS,
1842 allocation_site_mode, 1842 allocation_site_mode,
1843 length); 1843 length);
1844 __ CallStub(&stub); 1844 __ CallStub(&stub);
1845 __ IncrementCounter(isolate()->counters()->cow_arrays_created_stub(), 1845 __ IncrementCounter(isolate()->counters()->cow_arrays_created_stub(),
1846 1, a1, a2); 1846 1, a1, a2);
1847 } else if (expr->depth() > 1 || Serializer::enabled() || 1847 } else if (expr->depth() > 1 || Serializer::enabled() ||
1848 length > FastCloneShallowArrayStub::kMaximumClonedLength) { 1848 length > FastCloneShallowArrayStub::kMaximumInlinedCloneLength) {
1849 __ li(a0, Operand(Smi::FromInt(flags))); 1849 __ li(a0, Operand(Smi::FromInt(flags)));
1850 __ Push(a3, a2, a1, a0); 1850 __ Push(a3, a2, a1, a0);
1851 __ CallRuntime(Runtime::kHiddenCreateArrayLiteral, 4); 1851 __ CallRuntime(Runtime::kHiddenCreateArrayLiteral, 4);
1852 } else { 1852 } else {
1853 ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind) || 1853 ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind) ||
1854 FLAG_smi_only_arrays); 1854 FLAG_smi_only_arrays);
1855 FastCloneShallowArrayStub::Mode mode = 1855 FastCloneShallowArrayStub::Mode mode =
1856 FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS; 1856 FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS;
1857 1857
1858 if (has_fast_elements) { 1858 if (has_fast_elements) {
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4966 Assembler::target_address_at(pc_immediate_load_address)) == 4966 Assembler::target_address_at(pc_immediate_load_address)) ==
4967 reinterpret_cast<uint32_t>( 4967 reinterpret_cast<uint32_t>(
4968 isolate->builtins()->OsrAfterStackCheck()->entry())); 4968 isolate->builtins()->OsrAfterStackCheck()->entry()));
4969 return OSR_AFTER_STACK_CHECK; 4969 return OSR_AFTER_STACK_CHECK;
4970 } 4970 }
4971 4971
4972 4972
4973 } } // namespace v8::internal 4973 } } // namespace v8::internal
4974 4974
4975 #endif // V8_TARGET_ARCH_MIPS 4975 #endif // V8_TARGET_ARCH_MIPS
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