src/os_cpu/linux_sparc/vm/atomic_linux_sparc.inline.hpp

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

*** 146,166 ****
  inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {
    return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest);
  }
  
  
! inline jint     Atomic::cmpxchg    (jint     exchange_value, volatile jint*     dest, jint     compare_value) {
    jint rv;
    __asm__ volatile(
      " cas    [%2], %3, %0"
      : "=r" (rv)
      : "0" (exchange_value), "r" (dest), "r" (compare_value)
      : "memory");
    return rv;
  }
  
! inline jlong    Atomic::cmpxchg    (jlong    exchange_value, volatile jlong*    dest, jlong    compare_value) {
  #ifdef _LP64
    jlong rv;
    __asm__ volatile(
      " casx   [%2], %3, %0"
      : "=r" (rv)
--- 146,166 ----
  inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {
    return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest);
  }
  
  
! inline jint     Atomic::cmpxchg    (jint     exchange_value, volatile jint*     dest, jint     compare_value, cmpxchg_memory_order order) {
    jint rv;
    __asm__ volatile(
      " cas    [%2], %3, %0"
      : "=r" (rv)
      : "0" (exchange_value), "r" (dest), "r" (compare_value)
      : "memory");
    return rv;
  }
  
! inline jlong    Atomic::cmpxchg    (jlong    exchange_value, volatile jlong*    dest, jlong    compare_value, cmpxchg_memory_order order) {
  #ifdef _LP64
    jlong rv;
    __asm__ volatile(
      " casx   [%2], %3, %0"
      : "=r" (rv)
*** 188,198 ****
  
    return rv.long_value;
  #endif
  }
  
! inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
    intptr_t rv;
  #ifdef _LP64
    __asm__ volatile(
      " casx    [%2], %3, %0"
      : "=r" (rv)
--- 188,198 ----
  
    return rv.long_value;
  #endif
  }
  
! inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) {
    intptr_t rv;
  #ifdef _LP64
    __asm__ volatile(
      " casx    [%2], %3, %0"
      : "=r" (rv)
*** 206,215 ****
      : "memory");
  #endif // _LP64
    return rv;
  }
  
! 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);
  }
  
  #endif // OS_CPU_LINUX_SPARC_VM_ATOMIC_LINUX_SPARC_INLINE_HPP
--- 206,215 ----
      : "memory");
  #endif // _LP64
    return rv;
  }
  
! 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);
  }
  
  #endif // OS_CPU_LINUX_SPARC_VM_ATOMIC_LINUX_SPARC_INLINE_HPP