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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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_PPC_MACRO_ASSEMBLER_PPC_H_ | 5 #ifndef V8_PPC_MACRO_ASSEMBLER_PPC_H_ |
6 #define V8_PPC_MACRO_ASSEMBLER_PPC_H_ | 6 #define V8_PPC_MACRO_ASSEMBLER_PPC_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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663 // Inline caching support | 663 // Inline caching support |
664 | 664 |
665 // Generate code for checking access rights - used for security checks | 665 // Generate code for checking access rights - used for security checks |
666 // on access to global objects across environments. The holder register | 666 // on access to global objects across environments. The holder register |
667 // is left untouched, whereas both scratch registers are clobbered. | 667 // is left untouched, whereas both scratch registers are clobbered. |
668 void CheckAccessGlobalProxy(Register holder_reg, Register scratch, | 668 void CheckAccessGlobalProxy(Register holder_reg, Register scratch, |
669 Label* miss); | 669 Label* miss); |
670 | 670 |
671 void GetNumberHash(Register t0, Register scratch); | 671 void GetNumberHash(Register t0, Register scratch); |
672 | 672 |
673 void LoadFromNumberDictionary(Label* miss, Register elements, Register key, | |
674 Register result, Register t0, Register t1, | |
675 Register t2); | |
676 | |
677 | |
678 inline void MarkCode(NopMarkerTypes type) { nop(type); } | 673 inline void MarkCode(NopMarkerTypes type) { nop(type); } |
679 | 674 |
680 // Check if the given instruction is a 'type' marker. | 675 // Check if the given instruction is a 'type' marker. |
681 // i.e. check if is is a mov r<type>, r<type> (referenced as nop(type)) | 676 // i.e. check if is is a mov r<type>, r<type> (referenced as nop(type)) |
682 // These instructions are generated to mark special location in the code, | 677 // These instructions are generated to mark special location in the code, |
683 // like some special IC code. | 678 // like some special IC code. |
684 static inline bool IsMarkedCode(Instr instr, int type) { | 679 static inline bool IsMarkedCode(Instr instr, int type) { |
685 DCHECK((FIRST_IC_MARKER <= type) && (type < LAST_CODE_MARKER)); | 680 DCHECK((FIRST_IC_MARKER <= type) && (type < LAST_CODE_MARKER)); |
686 return IsNop(instr, type); | 681 return IsNop(instr, type); |
687 } | 682 } |
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812 // other registers. | 807 // other registers. |
813 // Type_reg can be no_reg. In that case ip is used. | 808 // Type_reg can be no_reg. In that case ip is used. |
814 void CompareObjectType(Register heap_object, Register map, Register type_reg, | 809 void CompareObjectType(Register heap_object, Register map, Register type_reg, |
815 InstanceType type); | 810 InstanceType type); |
816 | 811 |
817 // Compare instance type in a map. map contains a valid map object whose | 812 // Compare instance type in a map. map contains a valid map object whose |
818 // object type should be compared with the given type. This both | 813 // object type should be compared with the given type. This both |
819 // sets the flags and leaves the object type in the type_reg register. | 814 // sets the flags and leaves the object type in the type_reg register. |
820 void CompareInstanceType(Register map, Register type_reg, InstanceType type); | 815 void CompareInstanceType(Register map, Register type_reg, InstanceType type); |
821 | 816 |
822 | |
823 // Check if a map for a JSObject indicates that the object has fast elements. | |
824 // Jump to the specified label if it does not. | |
825 void CheckFastElements(Register map, Register scratch, Label* fail); | |
826 | |
827 // Check if a map for a JSObject indicates that the object can have both smi | 817 // Check if a map for a JSObject indicates that the object can have both smi |
828 // and HeapObject elements. Jump to the specified label if it does not. | 818 // and HeapObject elements. Jump to the specified label if it does not. |
829 void CheckFastObjectElements(Register map, Register scratch, Label* fail); | 819 void CheckFastObjectElements(Register map, Register scratch, Label* fail); |
830 | 820 |
831 // Check if a map for a JSObject indicates that the object has fast smi only | 821 // Check if a map for a JSObject indicates that the object has fast smi only |
832 // elements. Jump to the specified label if it does not. | 822 // elements. Jump to the specified label if it does not. |
833 void CheckFastSmiElements(Register map, Register scratch, Label* fail); | 823 void CheckFastSmiElements(Register map, Register scratch, Label* fail); |
834 | 824 |
835 // Check to see if maybe_number can be stored as a double in | 825 // Check to see if maybe_number can be stored as a double in |
836 // FastDoubleElements. If it can, store it at the index specified by key in | 826 // FastDoubleElements. If it can, store it at the index specified by key in |
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1675 inline MemOperand NativeContextMemOperand() { | 1665 inline MemOperand NativeContextMemOperand() { |
1676 return ContextMemOperand(cp, Context::NATIVE_CONTEXT_INDEX); | 1666 return ContextMemOperand(cp, Context::NATIVE_CONTEXT_INDEX); |
1677 } | 1667 } |
1678 | 1668 |
1679 #define ACCESS_MASM(masm) masm-> | 1669 #define ACCESS_MASM(masm) masm-> |
1680 | 1670 |
1681 } // namespace internal | 1671 } // namespace internal |
1682 } // namespace v8 | 1672 } // namespace v8 |
1683 | 1673 |
1684 #endif // V8_PPC_MACRO_ASSEMBLER_PPC_H_ | 1674 #endif // V8_PPC_MACRO_ASSEMBLER_PPC_H_ |
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