diff options
| -rw-r--r-- | include/my_cpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/my_cpu.h b/include/my_cpu.h index b7d7008a8e3..0b51d3ef90f 100644 --- a/include/my_cpu.h +++ b/include/my_cpu.h @@ -53,6 +53,7 @@ #ifdef _WIN32 #elif defined HAVE_PAUSE_INSTRUCTION #elif defined(_ARCH_PWR8) +#elif defined __GNUC__ && (defined __arm__ || defined __aarch64__) #else # include "my_atomic.h" #endif @@ -80,6 +81,9 @@ static inline void MY_RELAX_CPU(void) #endif #elif defined(_ARCH_PWR8) __ppc_get_timebase(); +#elif defined __GNUC__ && (defined __arm__ || defined __aarch64__) + /* Mainly, prevent the compiler from optimizing away delay loops */ + __asm__ __volatile__ ("":::"memory") #else int32 var, oldval = 0; my_atomic_cas32_strong_explicit(&var, &oldval, 1, MY_MEMORY_ORDER_RELAXED, |