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strengthen memory order of bit operations; insert memory fences

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daan 2020-07-26 14:19:30 -07:00
parent a9f46dc86f
commit a468430772
4 changed files with 10 additions and 8 deletions
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6
include/mimalloc-atomic.h
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@ -232,15 +232,15 @@ static inline void mi_atomic_maxi64_relaxed(volatile _Atomic(int64_t)*p, int64_t
#endif
static inline uintptr_t mi_atomic_add(_Atomic(uintptr_t)* p, uintptr_t add) {
MI_USING_STD
return atomic_fetch_add_explicit(p, add, memory_order_relaxed);
return atomic_fetch_add_explicit(p, add, memory_order_acq_rel);
}
static inline uintptr_t mi_atomic_and(_Atomic(uintptr_t)* p, uintptr_t x) {
MI_USING_STD
return atomic_fetch_and_explicit(p, x, memory_order_release);
return atomic_fetch_and_explicit(p, x, memory_order_acq_rel);
}
static inline uintptr_t mi_atomic_or(_Atomic(uintptr_t)* p, uintptr_t x) {
MI_USING_STD
return atomic_fetch_or_explicit(p, x, memory_order_release);
return atomic_fetch_or_explicit(p, x, memory_order_acq_rel);
}
static inline bool mi_atomic_cas_weak(_Atomic(uintptr_t)* p, uintptr_t* expected, uintptr_t desired) {
MI_USING_STD