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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_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
8 | 8 |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/ic/ic.h" | 10 #include "src/ic/ic.h" |
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496 __ ret(0); | 496 __ ret(0); |
497 | 497 |
498 StubRuntimeCallHelper call_helper; | 498 StubRuntimeCallHelper call_helper; |
499 char_at_generator.GenerateSlow(masm, call_helper); | 499 char_at_generator.GenerateSlow(masm, call_helper); |
500 | 500 |
501 __ bind(&miss); | 501 __ bind(&miss); |
502 GenerateMiss(masm); | 502 GenerateMiss(masm); |
503 } | 503 } |
504 | 504 |
505 | 505 |
506 void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) { | |
507 // Return address is on the stack. | |
508 Label slow; | |
509 | |
510 Register receiver = LoadDescriptor::ReceiverRegister(); | |
511 Register key = LoadDescriptor::NameRegister(); | |
512 Register scratch = eax; | |
513 DCHECK(!scratch.is(receiver) && !scratch.is(key)); | |
514 | |
515 // Check that the receiver isn't a smi. | |
516 __ JumpIfSmi(receiver, &slow); | |
517 | |
518 // Check that the key is an array index, that is Uint32. | |
519 __ test(key, Immediate(kSmiTagMask | kSmiSignMask)); | |
520 __ j(not_zero, &slow); | |
521 | |
522 // Get the map of the receiver. | |
523 __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); | |
524 | |
525 // Check that it has indexed interceptor and access checks | |
526 // are not enabled for this object. | |
527 __ movzx_b(scratch, FieldOperand(scratch, Map::kBitFieldOffset)); | |
528 __ and_(scratch, Immediate(kSlowCaseBitFieldMask)); | |
529 __ cmp(scratch, Immediate(1 << Map::kHasIndexedInterceptor)); | |
530 __ j(not_zero, &slow); | |
531 | |
532 // Everything is fine, call runtime. | |
533 __ pop(scratch); | |
534 __ push(receiver); // receiver | |
535 __ push(key); // key | |
536 __ push(scratch); // return address | |
537 | |
538 // Perform tail call to the entry. | |
539 ExternalReference ref = ExternalReference( | |
540 IC_Utility(kLoadElementWithInterceptor), masm->isolate()); | |
541 __ TailCallExternalReference(ref, 2, 1); | |
542 | |
543 __ bind(&slow); | |
544 GenerateMiss(masm); | |
545 } | |
546 | |
547 | |
548 void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) { | 506 void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) { |
549 // The return address is on the stack. | 507 // The return address is on the stack. |
550 Register receiver = LoadDescriptor::ReceiverRegister(); | 508 Register receiver = LoadDescriptor::ReceiverRegister(); |
551 Register key = LoadDescriptor::NameRegister(); | 509 Register key = LoadDescriptor::NameRegister(); |
552 DCHECK(receiver.is(edx)); | 510 DCHECK(receiver.is(edx)); |
553 DCHECK(key.is(ecx)); | 511 DCHECK(key.is(ecx)); |
554 | 512 |
555 Label slow, notin; | 513 Label slow, notin; |
556 Factory* factory = masm->isolate()->factory(); | 514 Factory* factory = masm->isolate()->factory(); |
557 Operand mapped_location = GenerateMappedArgumentsLookup( | 515 Operand mapped_location = GenerateMappedArgumentsLookup( |
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1043 Condition cc = | 1001 Condition cc = |
1044 (check == ENABLE_INLINED_SMI_CHECK) | 1002 (check == ENABLE_INLINED_SMI_CHECK) |
1045 ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero) | 1003 ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero) |
1046 : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry); | 1004 : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry); |
1047 *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc); | 1005 *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc); |
1048 } | 1006 } |
1049 } | 1007 } |
1050 } // namespace v8::internal | 1008 } // namespace v8::internal |
1051 | 1009 |
1052 #endif // V8_TARGET_ARCH_IA32 | 1010 #endif // V8_TARGET_ARCH_IA32 |
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