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Issue 1012023002: Merge old data and pointer space. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 9 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 // 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"
(...skipping 5439 matching lines...) Expand 10 before | Expand all | Expand 10 after
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());
(...skipping 42 matching lines...) Expand 10 before | Expand all | Expand 10 after
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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