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40 #ifndef __nanojit_NativeCommon__
41 #define __nanojit_NativeCommon__
45 // In debug builds, Register is defined as a non-integer type to avoid
46 // possible mix-ups with RegisterMask and integer offsets. In non-debug
47 // builds, it's defined as an integer just in case some compilers fail to
48 // optimize single-element structs in the obvious way.
50 // Note that in either case, a Register can be initialized like so:
52 // Register r = { 0 };
54 // In the debug case it's a struct initializer, in the non-debug case it's
55 // a scalar initializer.
57 // XXX: The exception to all the above is that if NJ_USE_UINT32_REGISTER
58 // is defined, the back-end is responsible for defining its own Register
59 // type, which will probably be an enum. This is just to give all the
60 // back-ends a chance to transition smoothly.
61 #if defined(NJ_USE_UINT32_REGISTER)
64 #elif defined(DEBUG) || defined(__SUNPRO_CC)
65 // Always use struct declaration for 'Register' with
66 // Solaris Studio C++ compiler, because it has a bug:
67 // Scalar type can not be initialized by '{1}'.
71 uint32_t n; // the register number
74 static inline uint32_t REGNUM(Register r) {
78 static inline Register operator+(Register r, int c)
84 static inline bool operator==(Register r1, Register r2)
89 static inline bool operator!=(Register r1, Register r2)
94 static inline bool operator<=(Register r1, Register r2)
99 static inline bool operator<(Register r1, Register r2)
104 static inline bool operator>=(Register r1, Register r2)
109 static inline bool operator>(Register r1, Register r2)
114 typedef uint32_t Register;
116 static inline uint32_t REGNUM(Register r) {
120 } // namespace nanojit
122 #endif // __nanojit_NativeCommon__