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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/arm/lithium-codegen-arm.h" | 7 #include "src/arm/lithium-codegen-arm.h" |
8 #include "src/arm/lithium-gap-resolver-arm.h" | 8 #include "src/arm/lithium-gap-resolver-arm.h" |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/code-factory.h" | 10 #include "src/code-factory.h" |
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5405 | 5405 |
5406 Register result = ToRegister(instr->result()); | 5406 Register result = ToRegister(instr->result()); |
5407 Register scratch = ToRegister(instr->temp1()); | 5407 Register scratch = ToRegister(instr->temp1()); |
5408 Register scratch2 = ToRegister(instr->temp2()); | 5408 Register scratch2 = ToRegister(instr->temp2()); |
5409 | 5409 |
5410 // Allocate memory for the object. | 5410 // Allocate memory for the object. |
5411 AllocationFlags flags = TAG_OBJECT; | 5411 AllocationFlags flags = TAG_OBJECT; |
5412 if (instr->hydrogen()->MustAllocateDoubleAligned()) { | 5412 if (instr->hydrogen()->MustAllocateDoubleAligned()) { |
5413 flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); | 5413 flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); |
5414 } | 5414 } |
5415 if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { | 5415 if (instr->hydrogen()->IsOldSpaceAllocation()) { |
5416 DCHECK(!instr->hydrogen()->IsOldDataSpaceAllocation()); | |
5417 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); | 5416 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); |
5418 flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_POINTER_SPACE); | 5417 flags = static_cast<AllocationFlags>(flags | PRETENURE); |
5419 } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { | |
5420 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); | |
5421 flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_DATA_SPACE); | |
5422 } | 5418 } |
5423 | 5419 |
5424 if (instr->size()->IsConstantOperand()) { | 5420 if (instr->size()->IsConstantOperand()) { |
5425 int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); | 5421 int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
5426 if (size <= Page::kMaxRegularHeapObjectSize) { | 5422 if (size <= Page::kMaxRegularHeapObjectSize) { |
5427 __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); | 5423 __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); |
5428 } else { | 5424 } else { |
5429 __ jmp(deferred->entry()); | 5425 __ jmp(deferred->entry()); |
5430 } | 5426 } |
5431 } else { | 5427 } else { |
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5473 __ Push(Smi::FromInt(size)); | 5469 __ Push(Smi::FromInt(size)); |
5474 } else { | 5470 } else { |
5475 // We should never get here at runtime => abort | 5471 // We should never get here at runtime => abort |
5476 __ stop("invalid allocation size"); | 5472 __ stop("invalid allocation size"); |
5477 return; | 5473 return; |
5478 } | 5474 } |
5479 } | 5475 } |
5480 | 5476 |
5481 int flags = AllocateDoubleAlignFlag::encode( | 5477 int flags = AllocateDoubleAlignFlag::encode( |
5482 instr->hydrogen()->MustAllocateDoubleAligned()); | 5478 instr->hydrogen()->MustAllocateDoubleAligned()); |
5483 if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { | 5479 if (instr->hydrogen()->IsOldSpaceAllocation()) { |
5484 DCHECK(!instr->hydrogen()->IsOldDataSpaceAllocation()); | |
5485 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); | 5480 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); |
5486 flags = AllocateTargetSpace::update(flags, OLD_POINTER_SPACE); | 5481 flags = AllocateTargetSpace::update(flags, OLD_SPACE); |
5487 } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { | |
5488 DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); | |
5489 flags = AllocateTargetSpace::update(flags, OLD_DATA_SPACE); | |
5490 } else { | 5482 } else { |
5491 flags = AllocateTargetSpace::update(flags, NEW_SPACE); | 5483 flags = AllocateTargetSpace::update(flags, NEW_SPACE); |
5492 } | 5484 } |
5493 __ Push(Smi::FromInt(flags)); | 5485 __ Push(Smi::FromInt(flags)); |
5494 | 5486 |
5495 CallRuntimeFromDeferred( | 5487 CallRuntimeFromDeferred( |
5496 Runtime::kAllocateInTargetSpace, 2, instr, instr->context()); | 5488 Runtime::kAllocateInTargetSpace, 2, instr, instr->context()); |
5497 __ StoreToSafepointRegisterSlot(r0, result); | 5489 __ StoreToSafepointRegisterSlot(r0, result); |
5498 } | 5490 } |
5499 | 5491 |
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5970 __ Push(scope_info); | 5962 __ Push(scope_info); |
5971 __ push(ToRegister(instr->function())); | 5963 __ push(ToRegister(instr->function())); |
5972 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 5964 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
5973 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5965 RecordSafepoint(Safepoint::kNoLazyDeopt); |
5974 } | 5966 } |
5975 | 5967 |
5976 | 5968 |
5977 #undef __ | 5969 #undef __ |
5978 | 5970 |
5979 } } // namespace v8::internal | 5971 } } // namespace v8::internal |
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