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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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961 unsigned int num_bits_set; | 961 unsigned int num_bits_set; |
962 for (num_bits_set = 0; x; x >>= 1) { | 962 for (num_bits_set = 0; x; x >>= 1) { |
963 num_bits_set += x & 1; | 963 num_bits_set += x & 1; |
964 } | 964 } |
965 return num_bits_set; | 965 return num_bits_set; |
966 } | 966 } |
967 | 967 |
968 bool EvalComparison(Token::Value op, double op1, double op2); | 968 bool EvalComparison(Token::Value op, double op1, double op2); |
969 | 969 |
970 // Computes pow(x, y) with the special cases in the spec for Math.pow. | 970 // Computes pow(x, y) with the special cases in the spec for Math.pow. |
| 971 double power_helper(double x, double y); |
971 double power_double_int(double x, int y); | 972 double power_double_int(double x, int y); |
972 double power_double_double(double x, double y); | 973 double power_double_double(double x, double y); |
973 | 974 |
974 // Helper class for generating code or data associated with the code | 975 // Helper class for generating code or data associated with the code |
975 // right after a call instruction. As an example this can be used to | 976 // right after a call instruction. As an example this can be used to |
976 // generate safepoint data after calls for crankshaft. | 977 // generate safepoint data after calls for crankshaft. |
977 class CallWrapper { | 978 class CallWrapper { |
978 public: | 979 public: |
979 CallWrapper() { } | 980 CallWrapper() { } |
980 virtual ~CallWrapper() { } | 981 virtual ~CallWrapper() { } |
981 // Called just before emitting a call. Argument is the size of the generated | 982 // Called just before emitting a call. Argument is the size of the generated |
982 // call code. | 983 // call code. |
983 virtual void BeforeCall(int call_size) const = 0; | 984 virtual void BeforeCall(int call_size) const = 0; |
984 // Called just after emitting a call, i.e., at the return site for the call. | 985 // Called just after emitting a call, i.e., at the return site for the call. |
985 virtual void AfterCall() const = 0; | 986 virtual void AfterCall() const = 0; |
986 }; | 987 }; |
987 | 988 |
988 class NullCallWrapper : public CallWrapper { | 989 class NullCallWrapper : public CallWrapper { |
989 public: | 990 public: |
990 NullCallWrapper() { } | 991 NullCallWrapper() { } |
991 virtual ~NullCallWrapper() { } | 992 virtual ~NullCallWrapper() { } |
992 virtual void BeforeCall(int call_size) const { } | 993 virtual void BeforeCall(int call_size) const { } |
993 virtual void AfterCall() const { } | 994 virtual void AfterCall() const { } |
994 }; | 995 }; |
995 | 996 |
996 } } // namespace v8::internal | 997 } } // namespace v8::internal |
997 | 998 |
998 #endif // V8_ASSEMBLER_H_ | 999 #endif // V8_ASSEMBLER_H_ |
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