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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 #if V8_TARGET_ARCH_ARM | 7 #if V8_TARGET_ARCH_ARM |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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1482 __ Ret(HasArgsInRegisters() ? 0 : 2); | 1482 __ Ret(HasArgsInRegisters() ? 0 : 2); |
1483 } | 1483 } |
1484 } | 1484 } |
1485 | 1485 |
1486 | 1486 |
1487 void FunctionPrototypeStub::Generate(MacroAssembler* masm) { | 1487 void FunctionPrototypeStub::Generate(MacroAssembler* masm) { |
1488 Label miss; | 1488 Label miss; |
1489 Register receiver = LoadDescriptor::ReceiverRegister(); | 1489 Register receiver = LoadDescriptor::ReceiverRegister(); |
1490 // Ensure that the vector and slot registers won't be clobbered before | 1490 // Ensure that the vector and slot registers won't be clobbered before |
1491 // calling the miss handler. | 1491 // calling the miss handler. |
1492 DCHECK(!FLAG_vector_ics || | 1492 DCHECK(!AreAliased(r4, r5, VectorLoadICDescriptor::VectorRegister(), |
1493 !AreAliased(r4, r5, VectorLoadICDescriptor::VectorRegister(), | |
1494 VectorLoadICDescriptor::SlotRegister())); | 1493 VectorLoadICDescriptor::SlotRegister())); |
1495 | 1494 |
1496 NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype(masm, receiver, r4, | 1495 NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype(masm, receiver, r4, |
1497 r5, &miss); | 1496 r5, &miss); |
1498 __ bind(&miss); | 1497 __ bind(&miss); |
1499 PropertyAccessCompiler::TailCallBuiltin( | 1498 PropertyAccessCompiler::TailCallBuiltin( |
1500 masm, PropertyAccessCompiler::MissBuiltin(Code::LOAD_IC)); | 1499 masm, PropertyAccessCompiler::MissBuiltin(Code::LOAD_IC)); |
1501 } | 1500 } |
1502 | 1501 |
1503 | 1502 |
1504 void LoadIndexedStringStub::Generate(MacroAssembler* masm) { | 1503 void LoadIndexedStringStub::Generate(MacroAssembler* masm) { |
1505 // Return address is in lr. | 1504 // Return address is in lr. |
1506 Label miss; | 1505 Label miss; |
1507 | 1506 |
1508 Register receiver = LoadDescriptor::ReceiverRegister(); | 1507 Register receiver = LoadDescriptor::ReceiverRegister(); |
1509 Register index = LoadDescriptor::NameRegister(); | 1508 Register index = LoadDescriptor::NameRegister(); |
1510 Register scratch = r5; | 1509 Register scratch = r5; |
1511 Register result = r0; | 1510 Register result = r0; |
1512 DCHECK(!scratch.is(receiver) && !scratch.is(index)); | 1511 DCHECK(!scratch.is(receiver) && !scratch.is(index)); |
1513 DCHECK(!FLAG_vector_ics || | 1512 DCHECK(!scratch.is(VectorLoadICDescriptor::VectorRegister()) && |
1514 (!scratch.is(VectorLoadICDescriptor::VectorRegister()) && | 1513 result.is(VectorLoadICDescriptor::SlotRegister())); |
1515 result.is(VectorLoadICDescriptor::SlotRegister()))); | |
1516 | 1514 |
1517 // StringCharAtGenerator doesn't use the result register until it's passed | 1515 // StringCharAtGenerator doesn't use the result register until it's passed |
1518 // the different miss possibilities. If it did, we would have a conflict | 1516 // the different miss possibilities. If it did, we would have a conflict |
1519 // when FLAG_vector_ics is true. | 1517 // when FLAG_vector_ics is true. |
1520 StringCharAtGenerator char_at_generator(receiver, index, scratch, result, | 1518 StringCharAtGenerator char_at_generator(receiver, index, scratch, result, |
1521 &miss, // When not a string. | 1519 &miss, // When not a string. |
1522 &miss, // When not a number. | 1520 &miss, // When not a number. |
1523 &miss, // When index out of range. | 1521 &miss, // When index out of range. |
1524 STRING_INDEX_IS_ARRAY_INDEX, | 1522 STRING_INDEX_IS_ARRAY_INDEX, |
1525 RECEIVER_IS_STRING); | 1523 RECEIVER_IS_STRING); |
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2946 | 2944 |
2947 // Index is not a smi. | 2945 // Index is not a smi. |
2948 __ bind(&index_not_smi_); | 2946 __ bind(&index_not_smi_); |
2949 // If index is a heap number, try converting it to an integer. | 2947 // If index is a heap number, try converting it to an integer. |
2950 __ CheckMap(index_, | 2948 __ CheckMap(index_, |
2951 result_, | 2949 result_, |
2952 Heap::kHeapNumberMapRootIndex, | 2950 Heap::kHeapNumberMapRootIndex, |
2953 index_not_number_, | 2951 index_not_number_, |
2954 DONT_DO_SMI_CHECK); | 2952 DONT_DO_SMI_CHECK); |
2955 call_helper.BeforeCall(masm); | 2953 call_helper.BeforeCall(masm); |
2956 if (FLAG_vector_ics && embed_mode == PART_OF_IC_HANDLER) { | 2954 if (embed_mode == PART_OF_IC_HANDLER) { |
2957 __ Push(VectorLoadICDescriptor::VectorRegister(), | 2955 __ Push(VectorLoadICDescriptor::VectorRegister(), |
2958 VectorLoadICDescriptor::SlotRegister(), object_, index_); | 2956 VectorLoadICDescriptor::SlotRegister(), object_, index_); |
2959 } else { | 2957 } else { |
2960 // index_ is consumed by runtime conversion function. | 2958 // index_ is consumed by runtime conversion function. |
2961 __ Push(object_, index_); | 2959 __ Push(object_, index_); |
2962 } | 2960 } |
2963 if (index_flags_ == STRING_INDEX_IS_NUMBER) { | 2961 if (index_flags_ == STRING_INDEX_IS_NUMBER) { |
2964 __ CallRuntime(Runtime::kNumberToIntegerMapMinusZero, 1); | 2962 __ CallRuntime(Runtime::kNumberToIntegerMapMinusZero, 1); |
2965 } else { | 2963 } else { |
2966 DCHECK(index_flags_ == STRING_INDEX_IS_ARRAY_INDEX); | 2964 DCHECK(index_flags_ == STRING_INDEX_IS_ARRAY_INDEX); |
2967 // NumberToSmi discards numbers that are not exact integers. | 2965 // NumberToSmi discards numbers that are not exact integers. |
2968 __ CallRuntime(Runtime::kNumberToSmi, 1); | 2966 __ CallRuntime(Runtime::kNumberToSmi, 1); |
2969 } | 2967 } |
2970 // Save the conversion result before the pop instructions below | 2968 // Save the conversion result before the pop instructions below |
2971 // have a chance to overwrite it. | 2969 // have a chance to overwrite it. |
2972 __ Move(index_, r0); | 2970 __ Move(index_, r0); |
2973 if (FLAG_vector_ics && embed_mode == PART_OF_IC_HANDLER) { | 2971 if (embed_mode == PART_OF_IC_HANDLER) { |
2974 __ Pop(VectorLoadICDescriptor::VectorRegister(), | 2972 __ Pop(VectorLoadICDescriptor::VectorRegister(), |
2975 VectorLoadICDescriptor::SlotRegister(), object_); | 2973 VectorLoadICDescriptor::SlotRegister(), object_); |
2976 } else { | 2974 } else { |
2977 __ pop(object_); | 2975 __ pop(object_); |
2978 } | 2976 } |
2979 // Reload the instance type. | 2977 // Reload the instance type. |
2980 __ ldr(result_, FieldMemOperand(object_, HeapObject::kMapOffset)); | 2978 __ ldr(result_, FieldMemOperand(object_, HeapObject::kMapOffset)); |
2981 __ ldrb(result_, FieldMemOperand(result_, Map::kInstanceTypeOffset)); | 2979 __ ldrb(result_, FieldMemOperand(result_, Map::kInstanceTypeOffset)); |
2982 call_helper.AfterCall(masm); | 2980 call_helper.AfterCall(masm); |
2983 // If index is still not a smi, it must be out of range. | 2981 // If index is still not a smi, it must be out of range. |
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5309 kStackUnwindSpace, NULL, | 5307 kStackUnwindSpace, NULL, |
5310 MemOperand(fp, 6 * kPointerSize), NULL); | 5308 MemOperand(fp, 6 * kPointerSize), NULL); |
5311 } | 5309 } |
5312 | 5310 |
5313 | 5311 |
5314 #undef __ | 5312 #undef __ |
5315 | 5313 |
5316 } } // namespace v8::internal | 5314 } } // namespace v8::internal |
5317 | 5315 |
5318 #endif // V8_TARGET_ARCH_ARM | 5316 #endif // V8_TARGET_ARCH_ARM |
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