62 // Release and acquire are empty on z/Architecture, but potential
  63 // optimizations of gcc must be forbidden by OrderAccess::release and
  64 // OrderAccess::acquire.
  65 #define inlasm_zarch_release() inlasm_compiler_barrier()
  66 #define inlasm_zarch_acquire() inlasm_compiler_barrier()
  67 #define inlasm_zarch_fence()   inlasm_zarch_sync()
  68 
  69 inline void OrderAccess::loadload()   { inlasm_compiler_barrier(); }
  70 inline void OrderAccess::storestore() { inlasm_compiler_barrier(); }
  71 inline void OrderAccess::loadstore()  { inlasm_compiler_barrier(); }
  72 inline void OrderAccess::storeload()  { inlasm_zarch_sync(); }
  73 
  74 inline void OrderAccess::acquire()    { inlasm_zarch_acquire(); }
  75 inline void OrderAccess::release()    { inlasm_zarch_release(); }
  76 inline void OrderAccess::fence()      { inlasm_zarch_sync(); }
  77 
  78 template<size_t byte_size>
  79 struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>
  80 {
  81   template <typename T>
  82   T operator()(const volatile T* p) const { register T t = *p; inlasm_zarch_acquire(); return t; }
  83 };
  84 
  85 #undef inlasm_compiler_barrier
  86 #undef inlasm_zarch_sync
  87 #undef inlasm_zarch_release
  88 #undef inlasm_zarch_acquire
  89 #undef inlasm_zarch_fence
  90 
  91 #endif // OS_CPU_LINUX_S390_VM_ORDERACCESS_LINUX_S390_HPP

  62 // Release and acquire are empty on z/Architecture, but potential
  63 // optimizations of gcc must be forbidden by OrderAccess::release and
  64 // OrderAccess::acquire.
  65 #define inlasm_zarch_release() inlasm_compiler_barrier()
  66 #define inlasm_zarch_acquire() inlasm_compiler_barrier()
  67 #define inlasm_zarch_fence()   inlasm_zarch_sync()
  68 
  69 inline void OrderAccess::loadload()   { inlasm_compiler_barrier(); }
  70 inline void OrderAccess::storestore() { inlasm_compiler_barrier(); }
  71 inline void OrderAccess::loadstore()  { inlasm_compiler_barrier(); }
  72 inline void OrderAccess::storeload()  { inlasm_zarch_sync(); }
  73 
  74 inline void OrderAccess::acquire()    { inlasm_zarch_acquire(); }
  75 inline void OrderAccess::release()    { inlasm_zarch_release(); }
  76 inline void OrderAccess::fence()      { inlasm_zarch_sync(); }
  77 
  78 template<size_t byte_size>
  79 struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>
  80 {
  81   template <typename T>
  82   T operator()(const volatile T* p) const { T t = *p; inlasm_zarch_acquire(); return t; }
  83 };
  84 
  85 #undef inlasm_compiler_barrier
  86 #undef inlasm_zarch_sync
  87 #undef inlasm_zarch_release
  88 #undef inlasm_zarch_acquire
  89 #undef inlasm_zarch_fence
  90 
  91 #endif // OS_CPU_LINUX_S390_VM_ORDERACCESS_LINUX_S390_HPP