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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_S390_MACRO_ASSEMBLER_S390_H_ | 5 #ifndef V8_S390_MACRO_ASSEMBLER_S390_H_ |
6 #define V8_S390_MACRO_ASSEMBLER_S390_H_ | 6 #define V8_S390_MACRO_ASSEMBLER_S390_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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933 // Inline caching support | 933 // Inline caching support |
934 | 934 |
935 // Generate code for checking access rights - used for security checks | 935 // Generate code for checking access rights - used for security checks |
936 // on access to global objects across environments. The holder register | 936 // on access to global objects across environments. The holder register |
937 // is left untouched, whereas both scratch registers are clobbered. | 937 // is left untouched, whereas both scratch registers are clobbered. |
938 void CheckAccessGlobalProxy(Register holder_reg, Register scratch, | 938 void CheckAccessGlobalProxy(Register holder_reg, Register scratch, |
939 Label* miss); | 939 Label* miss); |
940 | 940 |
941 void GetNumberHash(Register t0, Register scratch); | 941 void GetNumberHash(Register t0, Register scratch); |
942 | 942 |
943 void LoadFromNumberDictionary(Label* miss, Register elements, Register key, | |
944 Register result, Register t0, Register t1, | |
945 Register t2); | |
946 | |
947 inline void MarkCode(NopMarkerTypes type) { nop(type); } | 943 inline void MarkCode(NopMarkerTypes type) { nop(type); } |
948 | 944 |
949 // Check if the given instruction is a 'type' marker. | 945 // Check if the given instruction is a 'type' marker. |
950 // i.e. check if is is a mov r<type>, r<type> (referenced as nop(type)) | 946 // i.e. check if is is a mov r<type>, r<type> (referenced as nop(type)) |
951 // These instructions are generated to mark special location in the code, | 947 // These instructions are generated to mark special location in the code, |
952 // like some special IC code. | 948 // like some special IC code. |
953 static inline bool IsMarkedCode(Instr instr, int type) { | 949 static inline bool IsMarkedCode(Instr instr, int type) { |
954 DCHECK((FIRST_IC_MARKER <= type) && (type < LAST_CODE_MARKER)); | 950 DCHECK((FIRST_IC_MARKER <= type) && (type < LAST_CODE_MARKER)); |
955 return IsNop(instr, type); | 951 return IsNop(instr, type); |
956 } | 952 } |
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1079 // other registers. | 1075 // other registers. |
1080 // Type_reg can be no_reg. In that case ip is used. | 1076 // Type_reg can be no_reg. In that case ip is used. |
1081 void CompareObjectType(Register heap_object, Register map, Register type_reg, | 1077 void CompareObjectType(Register heap_object, Register map, Register type_reg, |
1082 InstanceType type); | 1078 InstanceType type); |
1083 | 1079 |
1084 // Compare instance type in a map. map contains a valid map object whose | 1080 // Compare instance type in a map. map contains a valid map object whose |
1085 // object type should be compared with the given type. This both | 1081 // object type should be compared with the given type. This both |
1086 // sets the flags and leaves the object type in the type_reg register. | 1082 // sets the flags and leaves the object type in the type_reg register. |
1087 void CompareInstanceType(Register map, Register type_reg, InstanceType type); | 1083 void CompareInstanceType(Register map, Register type_reg, InstanceType type); |
1088 | 1084 |
1089 // Check if a map for a JSObject indicates that the object has fast elements. | |
1090 // Jump to the specified label if it does not. | |
1091 void CheckFastElements(Register map, Register scratch, Label* fail); | |
1092 | |
1093 // Check if a map for a JSObject indicates that the object can have both smi | 1085 // Check if a map for a JSObject indicates that the object can have both smi |
1094 // and HeapObject elements. Jump to the specified label if it does not. | 1086 // and HeapObject elements. Jump to the specified label if it does not. |
1095 void CheckFastObjectElements(Register map, Register scratch, Label* fail); | 1087 void CheckFastObjectElements(Register map, Register scratch, Label* fail); |
1096 | 1088 |
1097 // Check if a map for a JSObject indicates that the object has fast smi only | 1089 // Check if a map for a JSObject indicates that the object has fast smi only |
1098 // elements. Jump to the specified label if it does not. | 1090 // elements. Jump to the specified label if it does not. |
1099 void CheckFastSmiElements(Register map, Register scratch, Label* fail); | 1091 void CheckFastSmiElements(Register map, Register scratch, Label* fail); |
1100 | 1092 |
1101 // Check to see if maybe_number can be stored as a double in | 1093 // Check to see if maybe_number can be stored as a double in |
1102 // FastDoubleElements. If it can, store it at the index specified by key in | 1094 // FastDoubleElements. If it can, store it at the index specified by key in |
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1893 inline MemOperand NativeContextMemOperand() { | 1885 inline MemOperand NativeContextMemOperand() { |
1894 return ContextMemOperand(cp, Context::NATIVE_CONTEXT_INDEX); | 1886 return ContextMemOperand(cp, Context::NATIVE_CONTEXT_INDEX); |
1895 } | 1887 } |
1896 | 1888 |
1897 #define ACCESS_MASM(masm) masm-> | 1889 #define ACCESS_MASM(masm) masm-> |
1898 | 1890 |
1899 } // namespace internal | 1891 } // namespace internal |
1900 } // namespace v8 | 1892 } // namespace v8 |
1901 | 1893 |
1902 #endif // V8_S390_MACRO_ASSEMBLER_S390_H_ | 1894 #endif // V8_S390_MACRO_ASSEMBLER_S390_H_ |
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