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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/code-factory.h" | 9 #include "src/code-factory.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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995 | 995 |
996 // Copy all arguments from the array to the stack. | 996 // Copy all arguments from the array to the stack. |
997 Label entry, loop; | 997 Label entry, loop; |
998 Register receiver = LoadDescriptor::ReceiverRegister(); | 998 Register receiver = LoadDescriptor::ReceiverRegister(); |
999 Register key = LoadDescriptor::NameRegister(); | 999 Register key = LoadDescriptor::NameRegister(); |
1000 __ mov(key, Operand(ebp, kIndexOffset)); | 1000 __ mov(key, Operand(ebp, kIndexOffset)); |
1001 __ jmp(&entry); | 1001 __ jmp(&entry); |
1002 __ bind(&loop); | 1002 __ bind(&loop); |
1003 __ mov(receiver, Operand(ebp, kArgumentsOffset)); // load arguments | 1003 __ mov(receiver, Operand(ebp, kArgumentsOffset)); // load arguments |
1004 | 1004 |
1005 // Use inline caching to speed up access to arguments. | |
1006 if (FLAG_vector_ics) { | 1005 if (FLAG_vector_ics) { |
1007 __ mov(VectorLoadICDescriptor::SlotRegister(), | 1006 // TODO(mvstanton): Vector-based ics need additional infrastructure to |
1008 Immediate(Smi::FromInt(0))); | 1007 // be embedded here. For now, just call the runtime. |
| 1008 __ push(receiver); |
| 1009 __ push(key); |
| 1010 __ CallRuntime(Runtime::kGetProperty, 2); |
| 1011 } else { |
| 1012 // Use inline caching to speed up access to arguments. |
| 1013 Handle<Code> ic = CodeFactory::KeyedLoadIC(masm->isolate()).code(); |
| 1014 __ call(ic, RelocInfo::CODE_TARGET); |
| 1015 // It is important that we do not have a test instruction after the |
| 1016 // call. A test instruction after the call is used to indicate that |
| 1017 // we have generated an inline version of the keyed load. In this |
| 1018 // case, we know that we are not generating a test instruction next. |
1009 } | 1019 } |
1010 Handle<Code> ic = CodeFactory::KeyedLoadIC(masm->isolate()).code(); | |
1011 __ call(ic, RelocInfo::CODE_TARGET); | |
1012 // It is important that we do not have a test instruction after the | |
1013 // call. A test instruction after the call is used to indicate that | |
1014 // we have generated an inline version of the keyed load. In this | |
1015 // case, we know that we are not generating a test instruction next. | |
1016 | 1020 |
1017 // Push the nth argument. | 1021 // Push the nth argument. |
1018 __ push(eax); | 1022 __ push(eax); |
1019 | 1023 |
1020 // Update the index on the stack and in register key. | 1024 // Update the index on the stack and in register key. |
1021 __ mov(key, Operand(ebp, kIndexOffset)); | 1025 __ mov(key, Operand(ebp, kIndexOffset)); |
1022 __ add(key, Immediate(1 << kSmiTagSize)); | 1026 __ add(key, Immediate(1 << kSmiTagSize)); |
1023 __ mov(Operand(ebp, kIndexOffset), key); | 1027 __ mov(Operand(ebp, kIndexOffset), key); |
1024 | 1028 |
1025 __ bind(&entry); | 1029 __ bind(&entry); |
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1449 | 1453 |
1450 __ bind(&ok); | 1454 __ bind(&ok); |
1451 __ ret(0); | 1455 __ ret(0); |
1452 } | 1456 } |
1453 | 1457 |
1454 #undef __ | 1458 #undef __ |
1455 } | 1459 } |
1456 } // namespace v8::internal | 1460 } // namespace v8::internal |
1457 | 1461 |
1458 #endif // V8_TARGET_ARCH_X87 | 1462 #endif // V8_TARGET_ARCH_X87 |
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