src/os_cpu/linux_zero/vm/atomic_linux_zero.inline.hpp

rev 11110 : 8155949: Support relaxed semantics in cmpxchg
Reviewed-by:
Contributed-by: HORII@jp.ibm.com, mdoerr

*** 262,272 ****
                             (volatile intptr_t*) dest);
  }
  
  inline jint Atomic::cmpxchg(jint exchange_value,
                              volatile jint* dest,
!                             jint compare_value) {
  #ifdef ARM
    return arm_compare_and_swap(dest, compare_value, exchange_value);
  #else
  #ifdef M68K
    return m68k_compare_and_swap(dest, compare_value, exchange_value);
--- 262,272 ----
                             (volatile intptr_t*) dest);
  }
  
  inline jint Atomic::cmpxchg(jint exchange_value,
                              volatile jint* dest,
!                             jint compare_value, cmpxchg_memory_order order) {
  #ifdef ARM
    return arm_compare_and_swap(dest, compare_value, exchange_value);
  #else
  #ifdef M68K
    return m68k_compare_and_swap(dest, compare_value, exchange_value);
*** 276,293 ****
  #endif // ARM
  }
  
  inline jlong Atomic::cmpxchg(jlong exchange_value,
                               volatile jlong* dest,
!                              jlong compare_value) {
  
    return __sync_val_compare_and_swap(dest, compare_value, exchange_value);
  }
  
  inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value,
                                      volatile intptr_t* dest,
!                                     intptr_t compare_value) {
  #ifdef ARM
    return arm_compare_and_swap(dest, compare_value, exchange_value);
  #else
  #ifdef M68K
    return m68k_compare_and_swap(dest, compare_value, exchange_value);
--- 276,293 ----
  #endif // ARM
  }
  
  inline jlong Atomic::cmpxchg(jlong exchange_value,
                               volatile jlong* dest,
!                              jlong compare_value, cmpxchg_memory_order order) {
  
    return __sync_val_compare_and_swap(dest, compare_value, exchange_value);
  }
  
  inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value,
                                      volatile intptr_t* dest,
!                                     intptr_t compare_value, cmpxchg_memory_order order) {
  #ifdef ARM
    return arm_compare_and_swap(dest, compare_value, exchange_value);
  #else
  #ifdef M68K
    return m68k_compare_and_swap(dest, compare_value, exchange_value);
*** 297,311 ****
  #endif // ARM
  }
  
  inline void* Atomic::cmpxchg_ptr(void* exchange_value,
                                   volatile void* dest,
!                                  void* compare_value) {
  
    return (void *) cmpxchg_ptr((intptr_t) exchange_value,
                                (volatile intptr_t*) dest,
!                               (intptr_t) compare_value);
  }
  
  inline jlong Atomic::load(volatile jlong* src) {
    volatile jlong dest;
    os::atomic_copy64(src, &dest);
--- 297,311 ----
  #endif // ARM
  }
  
  inline void* Atomic::cmpxchg_ptr(void* exchange_value,
                                   volatile void* dest,
!                                  void* compare_value, cmpxchg_memory_order order) {
  
    return (void *) cmpxchg_ptr((intptr_t) exchange_value,
                                (volatile intptr_t*) dest,
!                               (intptr_t) compare_value, order);
  }
  
  inline jlong Atomic::load(volatile jlong* src) {
    volatile jlong dest;
    os::atomic_copy64(src, &dest);