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Issue 13952008: Enable pretenuring of fast literals in high promotion mode. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 8 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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5465 Register result = ToRegister(instr->result()); 5465 Register result = ToRegister(instr->result());
5466 5466
5467 // TODO(3095996): Get rid of this. For now, we need to make the 5467 // TODO(3095996): Get rid of this. For now, we need to make the
5468 // result register contain a valid pointer because it is already 5468 // result register contain a valid pointer because it is already
5469 // contained in the register pointer map. 5469 // contained in the register pointer map.
5470 __ mov(result, Operand(Smi::FromInt(0))); 5470 __ mov(result, Operand(Smi::FromInt(0)));
5471 5471
5472 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); 5472 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters);
5473 __ SmiTag(size, size); 5473 __ SmiTag(size, size);
5474 __ push(size); 5474 __ push(size);
5475 CallRuntimeFromDeferred(Runtime::kAllocateInNewSpace, 1, instr); 5475 if (instr->hydrogen()->CanAllocateInOldPointerSpace()) {
5476 CallRuntimeFromDeferred(
5477 Runtime::kAllocateInOldPointerSpace, 1, instr);
5478 } else {
5479 CallRuntimeFromDeferred(
5480 Runtime::kAllocateInNewSpace, 1, instr);
5481 }
5476 __ StoreToSafepointRegisterSlot(r0, result); 5482 __ StoreToSafepointRegisterSlot(r0, result);
5477 } 5483 }
5478 5484
5479 5485
5480 void LCodeGen::DoArrayLiteral(LArrayLiteral* instr) { 5486 void LCodeGen::DoArrayLiteral(LArrayLiteral* instr) {
5481 Handle<FixedArray> literals(instr->environment()->closure()->literals()); 5487 Handle<FixedArray> literals(instr->environment()->closure()->literals());
5482 ElementsKind boilerplate_elements_kind = 5488 ElementsKind boilerplate_elements_kind =
5483 instr->hydrogen()->boilerplate_elements_kind(); 5489 instr->hydrogen()->boilerplate_elements_kind();
5484 AllocationSiteMode allocation_site_mode = 5490 AllocationSiteMode allocation_site_mode =
5485 instr->hydrogen()->allocation_site_mode(); 5491 instr->hydrogen()->allocation_site_mode();
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6006 __ sub(scratch, result, Operand(index, LSL, kPointerSizeLog2 - kSmiTagSize)); 6012 __ sub(scratch, result, Operand(index, LSL, kPointerSizeLog2 - kSmiTagSize));
6007 __ ldr(result, FieldMemOperand(scratch, 6013 __ ldr(result, FieldMemOperand(scratch,
6008 FixedArray::kHeaderSize - kPointerSize)); 6014 FixedArray::kHeaderSize - kPointerSize));
6009 __ bind(&done); 6015 __ bind(&done);
6010 } 6016 }
6011 6017
6012 6018
6013 #undef __ 6019 #undef __
6014 6020
6015 } } // namespace v8::internal 6021 } } // namespace v8::internal
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