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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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31 #include "ast.h" | 31 #include "ast.h" |
32 #include "ic-inl.h" | 32 #include "ic-inl.h" |
33 #include "jump-target-heavy.h" | 33 #include "jump-target-heavy.h" |
34 | 34 |
35 namespace v8 { | 35 namespace v8 { |
36 namespace internal { | 36 namespace internal { |
37 | 37 |
38 // Forward declarations | 38 // Forward declarations |
39 class CompilationInfo; | 39 class CompilationInfo; |
40 class DeferredCode; | 40 class DeferredCode; |
| 41 class FrameRegisterState; |
41 class RegisterAllocator; | 42 class RegisterAllocator; |
42 class RegisterFile; | 43 class RegisterFile; |
| 44 class RuntimeCallHelper; |
43 | 45 |
44 enum InitState { CONST_INIT, NOT_CONST_INIT }; | 46 enum InitState { CONST_INIT, NOT_CONST_INIT }; |
45 enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF }; | 47 enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF }; |
46 | 48 |
47 | 49 |
48 // ------------------------------------------------------------------------- | 50 // ------------------------------------------------------------------------- |
49 // Reference support | 51 // Reference support |
50 | 52 |
51 // A reference is a C++ stack-allocated object that puts a | 53 // A reference is a C++ stack-allocated object that puts a |
52 // reference on the virtual frame. The reference may be consumed | 54 // reference on the virtual frame. The reference may be consumed |
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614 // Support for arguments.length and arguments[?]. | 616 // Support for arguments.length and arguments[?]. |
615 void GenerateArgumentsLength(ZoneList<Expression*>* args); | 617 void GenerateArgumentsLength(ZoneList<Expression*>* args); |
616 void GenerateArguments(ZoneList<Expression*>* args); | 618 void GenerateArguments(ZoneList<Expression*>* args); |
617 | 619 |
618 // Support for accessing the class and value fields of an object. | 620 // Support for accessing the class and value fields of an object. |
619 void GenerateClassOf(ZoneList<Expression*>* args); | 621 void GenerateClassOf(ZoneList<Expression*>* args); |
620 void GenerateValueOf(ZoneList<Expression*>* args); | 622 void GenerateValueOf(ZoneList<Expression*>* args); |
621 void GenerateSetValueOf(ZoneList<Expression*>* args); | 623 void GenerateSetValueOf(ZoneList<Expression*>* args); |
622 | 624 |
623 // Fast support for charCodeAt(n). | 625 // Fast support for charCodeAt(n). |
624 void GenerateFastCharCodeAt(ZoneList<Expression*>* args); | 626 void GenerateStringCharCodeAt(ZoneList<Expression*>* args); |
625 | 627 |
626 // Fast support for string.charAt(n) and string[n]. | 628 // Fast support for string.charAt(n) and string[n]. |
627 void GenerateCharFromCode(ZoneList<Expression*>* args); | 629 void GenerateStringCharFromCode(ZoneList<Expression*>* args); |
| 630 |
| 631 // Fast support for string.charAt(n) and string[n]. |
| 632 void GenerateStringCharAt(ZoneList<Expression*>* args); |
628 | 633 |
629 // Fast support for object equality testing. | 634 // Fast support for object equality testing. |
630 void GenerateObjectEquals(ZoneList<Expression*>* args); | 635 void GenerateObjectEquals(ZoneList<Expression*>* args); |
631 | 636 |
632 void GenerateLog(ZoneList<Expression*>* args); | 637 void GenerateLog(ZoneList<Expression*>* args); |
633 | 638 |
634 void GenerateGetFramePointer(ZoneList<Expression*>* args); | 639 void GenerateGetFramePointer(ZoneList<Expression*>* args); |
635 | 640 |
636 // Fast support for Math.random(). | 641 // Fast support for Math.random(). |
637 void GenerateRandomHeapNumber(ZoneList<Expression*>* args); | 642 void GenerateRandomHeapNumber(ZoneList<Expression*>* args); |
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903 virtual int GetCodeKind() { return Code::BINARY_OP_IC; } | 908 virtual int GetCodeKind() { return Code::BINARY_OP_IC; } |
904 | 909 |
905 virtual InlineCacheState GetICState() { | 910 virtual InlineCacheState GetICState() { |
906 return BinaryOpIC::ToState(runtime_operands_type_); | 911 return BinaryOpIC::ToState(runtime_operands_type_); |
907 } | 912 } |
908 }; | 913 }; |
909 | 914 |
910 | 915 |
911 class StringHelper : public AllStatic { | 916 class StringHelper : public AllStatic { |
912 public: | 917 public: |
913 // Generates fast code for getting a char code out of a string | |
914 // object at the given index. May bail out for four reasons (in the | |
915 // listed order): | |
916 // * Receiver is not a string (receiver_not_string label). | |
917 // * Index is not a smi (index_not_smi label). | |
918 // * Index is out of range (index_out_of_range). | |
919 // * Some other reason (slow_case label). In this case it's | |
920 // guaranteed that the above conditions are not violated, | |
921 // e.g. it's safe to assume the receiver is a string and the | |
922 // index is a non-negative smi < length. | |
923 // When successful, object, index, and scratch are clobbered. | |
924 // Otherwise, scratch and result are clobbered. | |
925 static void GenerateFastCharCodeAt(MacroAssembler* masm, | |
926 Register object, | |
927 Register index, | |
928 Register scratch, | |
929 Register result, | |
930 Label* receiver_not_string, | |
931 Label* index_not_smi, | |
932 Label* index_out_of_range, | |
933 Label* slow_case); | |
934 | |
935 // Generates code for creating a one-char string from the given char | |
936 // code. May do a runtime call, so any register can be clobbered | |
937 // and, if the given invoke flag specifies a call, an internal frame | |
938 // is required. In tail call mode the result must be eax register. | |
939 static void GenerateCharFromCode(MacroAssembler* masm, | |
940 Register code, | |
941 Register result, | |
942 InvokeFlag flag); | |
943 | |
944 // Generate code for copying characters using a simple loop. This should only | 918 // Generate code for copying characters using a simple loop. This should only |
945 // be used in places where the number of characters is small and the | 919 // be used in places where the number of characters is small and the |
946 // additional setup and checking in GenerateCopyCharactersREP adds too much | 920 // additional setup and checking in GenerateCopyCharactersREP adds too much |
947 // overhead. Copying of overlapping regions is not supported. | 921 // overhead. Copying of overlapping regions is not supported. |
948 static void GenerateCopyCharacters(MacroAssembler* masm, | 922 static void GenerateCopyCharacters(MacroAssembler* masm, |
949 Register dest, | 923 Register dest, |
950 Register src, | 924 Register src, |
951 Register count, | 925 Register count, |
952 Register scratch, | 926 Register scratch, |
953 bool ascii); | 927 bool ascii); |
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1079 void Print() { | 1053 void Print() { |
1080 PrintF("NumberToStringStub\n"); | 1054 PrintF("NumberToStringStub\n"); |
1081 } | 1055 } |
1082 #endif | 1056 #endif |
1083 }; | 1057 }; |
1084 | 1058 |
1085 | 1059 |
1086 } } // namespace v8::internal | 1060 } } // namespace v8::internal |
1087 | 1061 |
1088 #endif // V8_IA32_CODEGEN_IA32_H_ | 1062 #endif // V8_IA32_CODEGEN_IA32_H_ |
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