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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 #if V8_TARGET_ARCH_ARM | 5 #if V8_TARGET_ARCH_ARM |
| 6 | 6 |
| 7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
| 8 #include "src/ic/ic.h" | 8 #include "src/ic/ic.h" |
| 9 #include "src/ic/ic-compiler.h" | 9 #include "src/ic/ic-compiler.h" |
| 10 #include "src/ic/stub-cache.h" | 10 #include "src/ic/stub-cache.h" |
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| 431 DCHECK(!AreAliased(vector, slot, r4, r5, r6, r9)); | 431 DCHECK(!AreAliased(vector, slot, r4, r5, r6, r9)); |
| 432 Handle<TypeFeedbackVector> dummy_vector = | 432 Handle<TypeFeedbackVector> dummy_vector = |
| 433 TypeFeedbackVector::DummyVector(masm->isolate()); | 433 TypeFeedbackVector::DummyVector(masm->isolate()); |
| 434 int slot_index = dummy_vector->GetIndex( | 434 int slot_index = dummy_vector->GetIndex( |
| 435 FeedbackVectorICSlot(TypeFeedbackVector::kDummyKeyedLoadICSlot)); | 435 FeedbackVectorICSlot(TypeFeedbackVector::kDummyKeyedLoadICSlot)); |
| 436 __ LoadRoot(vector, Heap::kDummyVectorRootIndex); | 436 __ LoadRoot(vector, Heap::kDummyVectorRootIndex); |
| 437 __ mov(slot, Operand(Smi::FromInt(slot_index))); | 437 __ mov(slot, Operand(Smi::FromInt(slot_index))); |
| 438 | 438 |
| 439 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( | 439 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( |
| 440 Code::ComputeHandlerFlags(Code::LOAD_IC)); | 440 Code::ComputeHandlerFlags(Code::LOAD_IC)); |
| 441 masm->isolate()->stub_cache()->GenerateProbe( | 441 masm->isolate()->stub_cache()->GenerateProbe(masm, Code::KEYED_LOAD_IC, flags, |
| 442 masm, Code::KEYED_LOAD_IC, flags, false, receiver, key, r4, r5, r6, r9); | 442 receiver, key, r4, r5, r6, r9); |
| 443 // Cache miss. | 443 // Cache miss. |
| 444 GenerateMiss(masm); | 444 GenerateMiss(masm); |
| 445 | 445 |
| 446 // Do a quick inline probe of the receiver's dictionary, if it | 446 // Do a quick inline probe of the receiver's dictionary, if it |
| 447 // exists. | 447 // exists. |
| 448 __ bind(&probe_dictionary); | 448 __ bind(&probe_dictionary); |
| 449 // r3: elements | 449 // r3: elements |
| 450 __ ldr(r0, FieldMemOperand(receiver, HeapObject::kMapOffset)); | 450 __ ldr(r0, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 451 __ ldrb(r0, FieldMemOperand(r0, Map::kInstanceTypeOffset)); | 451 __ ldrb(r0, FieldMemOperand(r0, Map::kInstanceTypeOffset)); |
| 452 GenerateGlobalInstanceTypeCheck(masm, r0, &slow); | 452 GenerateGlobalInstanceTypeCheck(masm, r0, &slow); |
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| 701 Handle<TypeFeedbackVector> dummy_vector = | 701 Handle<TypeFeedbackVector> dummy_vector = |
| 702 TypeFeedbackVector::DummyVector(masm->isolate()); | 702 TypeFeedbackVector::DummyVector(masm->isolate()); |
| 703 int slot_index = dummy_vector->GetIndex( | 703 int slot_index = dummy_vector->GetIndex( |
| 704 FeedbackVectorICSlot(TypeFeedbackVector::kDummyKeyedStoreICSlot)); | 704 FeedbackVectorICSlot(TypeFeedbackVector::kDummyKeyedStoreICSlot)); |
| 705 __ LoadRoot(vector, Heap::kDummyVectorRootIndex); | 705 __ LoadRoot(vector, Heap::kDummyVectorRootIndex); |
| 706 __ mov(slot, Operand(Smi::FromInt(slot_index))); | 706 __ mov(slot, Operand(Smi::FromInt(slot_index))); |
| 707 } | 707 } |
| 708 | 708 |
| 709 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( | 709 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( |
| 710 Code::ComputeHandlerFlags(Code::STORE_IC)); | 710 Code::ComputeHandlerFlags(Code::STORE_IC)); |
| 711 masm->isolate()->stub_cache()->GenerateProbe( | 711 masm->isolate()->stub_cache()->GenerateProbe(masm, Code::STORE_IC, flags, |
| 712 masm, Code::STORE_IC, flags, false, receiver, key, r3, r4, r5, r6); | 712 receiver, key, r3, r4, r5, r6); |
| 713 // Cache miss. | 713 // Cache miss. |
| 714 __ b(&miss); | 714 __ b(&miss); |
| 715 | 715 |
| 716 // Extra capacity case: Check if there is extra capacity to | 716 // Extra capacity case: Check if there is extra capacity to |
| 717 // perform the store and update the length. Used for adding one | 717 // perform the store and update the length. Used for adding one |
| 718 // element to the array by writing to array[array.length]. | 718 // element to the array by writing to array[array.length]. |
| 719 __ bind(&extra); | 719 __ bind(&extra); |
| 720 // Condition code from comparing key and array length is still available. | 720 // Condition code from comparing key and array length is still available. |
| 721 __ b(ne, &slow); // Only support writing to writing to array[array.length]. | 721 __ b(ne, &slow); // Only support writing to writing to array[array.length]. |
| 722 // Check for room in the elements backing store. | 722 // Check for room in the elements backing store. |
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| 763 Register receiver = StoreDescriptor::ReceiverRegister(); | 763 Register receiver = StoreDescriptor::ReceiverRegister(); |
| 764 Register name = StoreDescriptor::NameRegister(); | 764 Register name = StoreDescriptor::NameRegister(); |
| 765 DCHECK(receiver.is(r1)); | 765 DCHECK(receiver.is(r1)); |
| 766 DCHECK(name.is(r2)); | 766 DCHECK(name.is(r2)); |
| 767 DCHECK(StoreDescriptor::ValueRegister().is(r0)); | 767 DCHECK(StoreDescriptor::ValueRegister().is(r0)); |
| 768 | 768 |
| 769 // Get the receiver from the stack and probe the stub cache. | 769 // Get the receiver from the stack and probe the stub cache. |
| 770 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( | 770 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( |
| 771 Code::ComputeHandlerFlags(Code::STORE_IC)); | 771 Code::ComputeHandlerFlags(Code::STORE_IC)); |
| 772 | 772 |
| 773 masm->isolate()->stub_cache()->GenerateProbe( | 773 masm->isolate()->stub_cache()->GenerateProbe(masm, Code::STORE_IC, flags, |
| 774 masm, Code::STORE_IC, flags, false, receiver, name, r3, r4, r5, r6); | 774 receiver, name, r3, r4, r5, r6); |
| 775 | 775 |
| 776 // Cache miss: Jump to runtime. | 776 // Cache miss: Jump to runtime. |
| 777 GenerateMiss(masm); | 777 GenerateMiss(masm); |
| 778 } | 778 } |
| 779 | 779 |
| 780 | 780 |
| 781 void StoreIC::GenerateMiss(MacroAssembler* masm) { | 781 void StoreIC::GenerateMiss(MacroAssembler* masm) { |
| 782 StoreIC_PushArgs(masm); | 782 StoreIC_PushArgs(masm); |
| 783 | 783 |
| 784 // Perform tail call to the entry. | 784 // Perform tail call to the entry. |
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| 901 patcher.EmitCondition(ne); | 901 patcher.EmitCondition(ne); |
| 902 } else { | 902 } else { |
| 903 DCHECK(Assembler::GetCondition(branch_instr) == ne); | 903 DCHECK(Assembler::GetCondition(branch_instr) == ne); |
| 904 patcher.EmitCondition(eq); | 904 patcher.EmitCondition(eq); |
| 905 } | 905 } |
| 906 } | 906 } |
| 907 } // namespace internal | 907 } // namespace internal |
| 908 } // namespace v8 | 908 } // namespace v8 |
| 909 | 909 |
| 910 #endif // V8_TARGET_ARCH_ARM | 910 #endif // V8_TARGET_ARCH_ARM |
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