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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 #ifndef V8_IA32_MACRO_ASSEMBLER_IA32_H_ | 5 #ifndef V8_IA32_MACRO_ASSEMBLER_IA32_H_ |
| 6 #define V8_IA32_MACRO_ASSEMBLER_IA32_H_ | 6 #define V8_IA32_MACRO_ASSEMBLER_IA32_H_ |
| 7 | 7 |
| 8 #include "src/assembler.h" | 8 #include "src/assembler.h" |
| 9 #include "src/bailout-reason.h" | 9 #include "src/bailout-reason.h" |
| 10 #include "src/frames.h" | 10 #include "src/frames.h" |
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| 384 void SafeMove(Register dst, const Immediate& x); | 384 void SafeMove(Register dst, const Immediate& x); |
| 385 void SafePush(const Immediate& x); | 385 void SafePush(const Immediate& x); |
| 386 | 386 |
| 387 // Compare object type for heap object. | 387 // Compare object type for heap object. |
| 388 // Incoming register is heap_object and outgoing register is map. | 388 // Incoming register is heap_object and outgoing register is map. |
| 389 void CmpObjectType(Register heap_object, InstanceType type, Register map); | 389 void CmpObjectType(Register heap_object, InstanceType type, Register map); |
| 390 | 390 |
| 391 // Compare instance type for map. | 391 // Compare instance type for map. |
| 392 void CmpInstanceType(Register map, InstanceType type); | 392 void CmpInstanceType(Register map, InstanceType type); |
| 393 | 393 |
| 394 // Check if a map for a JSObject indicates that the object has fast elements. | |
| 395 // Jump to the specified label if it does not. | |
| 396 void CheckFastElements(Register map, Label* fail, | |
| 397 Label::Distance distance = Label::kFar); | |
| 398 | |
| 399 // Check if a map for a JSObject indicates that the object can have both smi | 394 // Check if a map for a JSObject indicates that the object can have both smi |
| 400 // and HeapObject elements. Jump to the specified label if it does not. | 395 // and HeapObject elements. Jump to the specified label if it does not. |
| 401 void CheckFastObjectElements(Register map, Label* fail, | 396 void CheckFastObjectElements(Register map, Label* fail, |
| 402 Label::Distance distance = Label::kFar); | 397 Label::Distance distance = Label::kFar); |
| 403 | 398 |
| 404 // Check if a map for a JSObject indicates that the object has fast smi only | 399 // Check if a map for a JSObject indicates that the object has fast smi only |
| 405 // elements. Jump to the specified label if it does not. | 400 // elements. Jump to the specified label if it does not. |
| 406 void CheckFastSmiElements(Register map, Label* fail, | 401 void CheckFastSmiElements(Register map, Label* fail, |
| 407 Label::Distance distance = Label::kFar); | 402 Label::Distance distance = Label::kFar); |
| 408 | 403 |
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| 605 // Inline caching support | 600 // Inline caching support |
| 606 | 601 |
| 607 // Generate code for checking access rights - used for security checks | 602 // Generate code for checking access rights - used for security checks |
| 608 // on access to global objects across environments. The holder register | 603 // on access to global objects across environments. The holder register |
| 609 // is left untouched, but the scratch register is clobbered. | 604 // is left untouched, but the scratch register is clobbered. |
| 610 void CheckAccessGlobalProxy(Register holder_reg, Register scratch1, | 605 void CheckAccessGlobalProxy(Register holder_reg, Register scratch1, |
| 611 Register scratch2, Label* miss); | 606 Register scratch2, Label* miss); |
| 612 | 607 |
| 613 void GetNumberHash(Register r0, Register scratch); | 608 void GetNumberHash(Register r0, Register scratch); |
| 614 | 609 |
| 615 void LoadFromNumberDictionary(Label* miss, Register elements, Register key, | |
| 616 Register r0, Register r1, Register r2, | |
| 617 Register result); | |
| 618 | |
| 619 // --------------------------------------------------------------------------- | 610 // --------------------------------------------------------------------------- |
| 620 // Allocation support | 611 // Allocation support |
| 621 | 612 |
| 622 // Allocate an object in new space or old space. If the given space | 613 // Allocate an object in new space or old space. If the given space |
| 623 // is exhausted control continues at the gc_required label. The allocated | 614 // is exhausted control continues at the gc_required label. The allocated |
| 624 // object is returned in result and end of the new object is returned in | 615 // object is returned in result and end of the new object is returned in |
| 625 // result_end. The register scratch can be passed as no_reg in which case | 616 // result_end. The register scratch can be passed as no_reg in which case |
| 626 // an additional object reference will be added to the reloc info. The | 617 // an additional object reference will be added to the reloc info. The |
| 627 // returned pointers in result and result_end have not yet been tagged as | 618 // returned pointers in result and result_end have not yet been tagged as |
| 628 // heap objects. If result_contains_top_on_entry is true the content of | 619 // heap objects. If result_contains_top_on_entry is true the content of |
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| 1077 inline Operand NativeContextOperand() { | 1068 inline Operand NativeContextOperand() { |
| 1078 return ContextOperand(esi, Context::NATIVE_CONTEXT_INDEX); | 1069 return ContextOperand(esi, Context::NATIVE_CONTEXT_INDEX); |
| 1079 } | 1070 } |
| 1080 | 1071 |
| 1081 #define ACCESS_MASM(masm) masm-> | 1072 #define ACCESS_MASM(masm) masm-> |
| 1082 | 1073 |
| 1083 } // namespace internal | 1074 } // namespace internal |
| 1084 } // namespace v8 | 1075 } // namespace v8 |
| 1085 | 1076 |
| 1086 #endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_ | 1077 #endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_ |
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