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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_X87 | 7 #if V8_TARGET_ARCH_X87 |
| 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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| 4083 | 4083 |
| 4084 void LoadICTrampolineStub::Generate(MacroAssembler* masm) { | 4084 void LoadICTrampolineStub::Generate(MacroAssembler* masm) { |
| 4085 EmitLoadTypeFeedbackVector(masm, LoadWithVectorDescriptor::VectorRegister()); | 4085 EmitLoadTypeFeedbackVector(masm, LoadWithVectorDescriptor::VectorRegister()); |
| 4086 LoadICStub stub(isolate(), state()); | 4086 LoadICStub stub(isolate(), state()); |
| 4087 stub.GenerateForTrampoline(masm); | 4087 stub.GenerateForTrampoline(masm); |
| 4088 } | 4088 } |
| 4089 | 4089 |
| 4090 | 4090 |
| 4091 void KeyedLoadICTrampolineStub::Generate(MacroAssembler* masm) { | 4091 void KeyedLoadICTrampolineStub::Generate(MacroAssembler* masm) { |
| 4092 EmitLoadTypeFeedbackVector(masm, LoadWithVectorDescriptor::VectorRegister()); | 4092 EmitLoadTypeFeedbackVector(masm, LoadWithVectorDescriptor::VectorRegister()); |
| 4093 KeyedLoadICStub stub(isolate(), state()); | 4093 KeyedLoadICStub stub(isolate()); |
| 4094 stub.GenerateForTrampoline(masm); | 4094 stub.GenerateForTrampoline(masm); |
| 4095 } | 4095 } |
| 4096 | 4096 |
| 4097 | 4097 |
| 4098 static void HandleArrayCases(MacroAssembler* masm, Register receiver, | 4098 static void HandleArrayCases(MacroAssembler* masm, Register receiver, |
| 4099 Register key, Register vector, Register slot, | 4099 Register key, Register vector, Register slot, |
| 4100 Register feedback, bool is_polymorphic, | 4100 Register feedback, bool is_polymorphic, |
| 4101 Label* miss) { | 4101 Label* miss) { |
| 4102 // feedback initially contains the feedback array | 4102 // feedback initially contains the feedback array |
| 4103 Label next, next_loop, prepare_next; | 4103 Label next, next_loop, prepare_next; |
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| 4287 // We have a polymorphic element handler. | 4287 // We have a polymorphic element handler. |
| 4288 Label polymorphic, try_poly_name; | 4288 Label polymorphic, try_poly_name; |
| 4289 __ bind(&polymorphic); | 4289 __ bind(&polymorphic); |
| 4290 HandleArrayCases(masm, receiver, key, vector, slot, feedback, true, &miss); | 4290 HandleArrayCases(masm, receiver, key, vector, slot, feedback, true, &miss); |
| 4291 | 4291 |
| 4292 __ bind(¬_array); | 4292 __ bind(¬_array); |
| 4293 // Is it generic? | 4293 // Is it generic? |
| 4294 __ CompareRoot(feedback, Heap::kmegamorphic_symbolRootIndex); | 4294 __ CompareRoot(feedback, Heap::kmegamorphic_symbolRootIndex); |
| 4295 __ j(not_equal, &try_poly_name); | 4295 __ j(not_equal, &try_poly_name); |
| 4296 Handle<Code> megamorphic_stub = | 4296 Handle<Code> megamorphic_stub = |
| 4297 KeyedLoadIC::ChooseMegamorphicStub(masm->isolate(), GetExtraICState()); | 4297 KeyedLoadIC::ChooseMegamorphicStub(masm->isolate()); |
| 4298 __ jmp(megamorphic_stub, RelocInfo::CODE_TARGET); | 4298 __ jmp(megamorphic_stub, RelocInfo::CODE_TARGET); |
| 4299 | 4299 |
| 4300 __ bind(&try_poly_name); | 4300 __ bind(&try_poly_name); |
| 4301 // We might have a name in feedback, and a fixed array in the next slot. | 4301 // We might have a name in feedback, and a fixed array in the next slot. |
| 4302 __ cmp(key, feedback); | 4302 __ cmp(key, feedback); |
| 4303 __ j(not_equal, &miss); | 4303 __ j(not_equal, &miss); |
| 4304 // If the name comparison succeeded, we know we have a fixed array with | 4304 // If the name comparison succeeded, we know we have a fixed array with |
| 4305 // at least one map/handler pair. | 4305 // at least one map/handler pair. |
| 4306 __ mov(feedback, FieldOperand(vector, slot, times_half_pointer_size, | 4306 __ mov(feedback, FieldOperand(vector, slot, times_half_pointer_size, |
| 4307 FixedArray::kHeaderSize + kPointerSize)); | 4307 FixedArray::kHeaderSize + kPointerSize)); |
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| 5138 Operand(ebp, 7 * kPointerSize), NULL); | 5138 Operand(ebp, 7 * kPointerSize), NULL); |
| 5139 } | 5139 } |
| 5140 | 5140 |
| 5141 | 5141 |
| 5142 #undef __ | 5142 #undef __ |
| 5143 | 5143 |
| 5144 } // namespace internal | 5144 } // namespace internal |
| 5145 } // namespace v8 | 5145 } // namespace v8 |
| 5146 | 5146 |
| 5147 #endif // V8_TARGET_ARCH_X87 | 5147 #endif // V8_TARGET_ARCH_X87 |
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