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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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840 static inline bool is_uint28(int x) { return is_uintn(x, 28); } | 840 static inline bool is_uint28(int x) { return is_uintn(x, 28); } |
841 | 841 |
842 static inline int NumberOfBitsSet(uint32_t x) { | 842 static inline int NumberOfBitsSet(uint32_t x) { |
843 unsigned int num_bits_set; | 843 unsigned int num_bits_set; |
844 for (num_bits_set = 0; x; x >>= 1) { | 844 for (num_bits_set = 0; x; x >>= 1) { |
845 num_bits_set += x & 1; | 845 num_bits_set += x & 1; |
846 } | 846 } |
847 return num_bits_set; | 847 return num_bits_set; |
848 } | 848 } |
849 | 849 |
| 850 bool EvalComparison(Token::Value op, double op1, double op2); |
| 851 |
850 // Computes pow(x, y) with the special cases in the spec for Math.pow. | 852 // Computes pow(x, y) with the special cases in the spec for Math.pow. |
851 double power_double_int(double x, int y); | 853 double power_double_int(double x, int y); |
852 double power_double_double(double x, double y); | 854 double power_double_double(double x, double y); |
853 | 855 |
854 // Helper class for generating code or data associated with the code | 856 // Helper class for generating code or data associated with the code |
855 // right after a call instruction. As an example this can be used to | 857 // right after a call instruction. As an example this can be used to |
856 // generate safepoint data after calls for crankshaft. | 858 // generate safepoint data after calls for crankshaft. |
857 class CallWrapper { | 859 class CallWrapper { |
858 public: | 860 public: |
859 CallWrapper() { } | 861 CallWrapper() { } |
860 virtual ~CallWrapper() { } | 862 virtual ~CallWrapper() { } |
861 // Called just before emitting a call. Argument is the size of the generated | 863 // Called just before emitting a call. Argument is the size of the generated |
862 // call code. | 864 // call code. |
863 virtual void BeforeCall(int call_size) const = 0; | 865 virtual void BeforeCall(int call_size) const = 0; |
864 // Called just after emitting a call, i.e., at the return site for the call. | 866 // Called just after emitting a call, i.e., at the return site for the call. |
865 virtual void AfterCall() const = 0; | 867 virtual void AfterCall() const = 0; |
866 }; | 868 }; |
867 | 869 |
868 class NullCallWrapper : public CallWrapper { | 870 class NullCallWrapper : public CallWrapper { |
869 public: | 871 public: |
870 NullCallWrapper() { } | 872 NullCallWrapper() { } |
871 virtual ~NullCallWrapper() { } | 873 virtual ~NullCallWrapper() { } |
872 virtual void BeforeCall(int call_size) const { } | 874 virtual void BeforeCall(int call_size) const { } |
873 virtual void AfterCall() const { } | 875 virtual void AfterCall() const { } |
874 }; | 876 }; |
875 | 877 |
876 } } // namespace v8::internal | 878 } } // namespace v8::internal |
877 | 879 |
878 #endif // V8_ASSEMBLER_H_ | 880 #endif // V8_ASSEMBLER_H_ |
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