These 'return' values produce unused value warnings when the value
returned by _ATOMIC_STORE_, _ATOMIC_INIT_, and _ATOMIC_MODIFY_ aren't
used. Silence these warnings (but leave the ones for _ATOMIC_LOAD_)
because we expect that the result of RMW's or stores may rightly be
discarded in many cases.
({ volatile __typeof__((__a__)->__f__)* __p__ = & ((__a__)->__f__); \
__typeof__(__m__) __v__ = (__m__); \
model_write_action((void *) __p__, __x__, (uint64_t) __v__); \
({ volatile __typeof__((__a__)->__f__)* __p__ = & ((__a__)->__f__); \
__typeof__(__m__) __v__ = (__m__); \
model_write_action((void *) __p__, __x__, (uint64_t) __v__); \
+ __v__ = __v__; /* Silence clang (-Wunused-value) */ \
+ })
#define _ATOMIC_INIT_( __a__, __m__ ) \
({ volatile __typeof__((__a__)->__f__)* __p__ = & ((__a__)->__f__); \
__typeof__(__m__) __v__ = (__m__); \
model_init_action((void *) __p__, (uint64_t) __v__); \
#define _ATOMIC_INIT_( __a__, __m__ ) \
({ volatile __typeof__((__a__)->__f__)* __p__ = & ((__a__)->__f__); \
__typeof__(__m__) __v__ = (__m__); \
model_init_action((void *) __p__, (uint64_t) __v__); \
+ __v__ = __v__; /* Silence clang (-Wunused-value) */ \
+ })
#define _ATOMIC_MODIFY_( __a__, __o__, __m__, __x__ ) \
({ volatile __typeof__((__a__)->__f__)* __p__ = & ((__a__)->__f__); \
#define _ATOMIC_MODIFY_( __a__, __o__, __m__, __x__ ) \
({ volatile __typeof__((__a__)->__f__)* __p__ = & ((__a__)->__f__); \
__typeof__((__a__)->__f__) __copy__= __old__; \
__copy__ __o__ __v__; \
model_rmw_action((void *)__p__, __x__, (uint64_t) __copy__); \
__typeof__((__a__)->__f__) __copy__= __old__; \
__copy__ __o__ __v__; \
model_rmw_action((void *)__p__, __x__, (uint64_t) __copy__); \
+ __old__ = __old__; /* Silence clang (-Wunused-value) */ \
+ })
/* No spurious failure for now */
#define _ATOMIC_CMPSWP_WEAK_ _ATOMIC_CMPSWP_
/* No spurious failure for now */
#define _ATOMIC_CMPSWP_WEAK_ _ATOMIC_CMPSWP_