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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/cpu-profiler.h" | 9 #include "src/cpu-profiler.h" |
10 #include "src/hydrogen-osr.h" | 10 #include "src/hydrogen-osr.h" |
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5450 | 5450 |
5451 Register result = ToRegister(instr->result()); | 5451 Register result = ToRegister(instr->result()); |
5452 Register scratch = ToRegister(instr->temp1()); | 5452 Register scratch = ToRegister(instr->temp1()); |
5453 Register scratch2 = ToRegister(instr->temp2()); | 5453 Register scratch2 = ToRegister(instr->temp2()); |
5454 | 5454 |
5455 // Allocate memory for the object. | 5455 // Allocate memory for the object. |
5456 AllocationFlags flags = TAG_OBJECT; | 5456 AllocationFlags flags = TAG_OBJECT; |
5457 if (instr->hydrogen()->MustAllocateDoubleAligned()) { | 5457 if (instr->hydrogen()->MustAllocateDoubleAligned()) { |
5458 flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); | 5458 flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); |
5459 } | 5459 } |
5460 if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { | 5460 if (instr->hydrogen()->IsOldSpaceAllocation()) { |
5461 DCHECK(!instr->hydrogen()->IsOldDataSpaceAllocation()); | |
5462 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); | 5461 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); |
5463 flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_POINTER_SPACE); | 5462 flags = static_cast<AllocationFlags>(flags | PRETENURE); |
5464 } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { | |
5465 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); | |
5466 flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_DATA_SPACE); | |
5467 } | 5463 } |
5468 if (instr->size()->IsConstantOperand()) { | 5464 if (instr->size()->IsConstantOperand()) { |
5469 int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); | 5465 int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
5470 if (size <= Page::kMaxRegularHeapObjectSize) { | 5466 if (size <= Page::kMaxRegularHeapObjectSize) { |
5471 __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); | 5467 __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); |
5472 } else { | 5468 } else { |
5473 __ jmp(deferred->entry()); | 5469 __ jmp(deferred->entry()); |
5474 } | 5470 } |
5475 } else { | 5471 } else { |
5476 Register size = ToRegister(instr->size()); | 5472 Register size = ToRegister(instr->size()); |
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5519 __ Push(v0); | 5515 __ Push(v0); |
5520 } else { | 5516 } else { |
5521 // We should never get here at runtime => abort | 5517 // We should never get here at runtime => abort |
5522 __ stop("invalid allocation size"); | 5518 __ stop("invalid allocation size"); |
5523 return; | 5519 return; |
5524 } | 5520 } |
5525 } | 5521 } |
5526 | 5522 |
5527 int flags = AllocateDoubleAlignFlag::encode( | 5523 int flags = AllocateDoubleAlignFlag::encode( |
5528 instr->hydrogen()->MustAllocateDoubleAligned()); | 5524 instr->hydrogen()->MustAllocateDoubleAligned()); |
5529 if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { | 5525 if (instr->hydrogen()->IsOldSpaceAllocation()) { |
5530 DCHECK(!instr->hydrogen()->IsOldDataSpaceAllocation()); | |
5531 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); | 5526 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); |
5532 flags = AllocateTargetSpace::update(flags, OLD_POINTER_SPACE); | 5527 flags = AllocateTargetSpace::update(flags, OLD_SPACE); |
5533 } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { | |
5534 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); | |
5535 flags = AllocateTargetSpace::update(flags, OLD_DATA_SPACE); | |
5536 } else { | 5528 } else { |
5537 flags = AllocateTargetSpace::update(flags, NEW_SPACE); | 5529 flags = AllocateTargetSpace::update(flags, NEW_SPACE); |
5538 } | 5530 } |
5539 __ li(v0, Operand(Smi::FromInt(flags))); | 5531 __ li(v0, Operand(Smi::FromInt(flags))); |
5540 __ Push(v0); | 5532 __ Push(v0); |
5541 | 5533 |
5542 CallRuntimeFromDeferred( | 5534 CallRuntimeFromDeferred( |
5543 Runtime::kAllocateInTargetSpace, 2, instr, instr->context()); | 5535 Runtime::kAllocateInTargetSpace, 2, instr, instr->context()); |
5544 __ StoreToSafepointRegisterSlot(v0, result); | 5536 __ StoreToSafepointRegisterSlot(v0, result); |
5545 } | 5537 } |
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6058 __ li(at, scope_info); | 6050 __ li(at, scope_info); |
6059 __ Push(at, ToRegister(instr->function())); | 6051 __ Push(at, ToRegister(instr->function())); |
6060 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 6052 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
6061 RecordSafepoint(Safepoint::kNoLazyDeopt); | 6053 RecordSafepoint(Safepoint::kNoLazyDeopt); |
6062 } | 6054 } |
6063 | 6055 |
6064 | 6056 |
6065 #undef __ | 6057 #undef __ |
6066 | 6058 |
6067 } } // namespace v8::internal | 6059 } } // namespace v8::internal |
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