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src/hotspot/os_cpu/aix_ppc/orderAccess_aix_ppc.hpp

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rev 50962 : [mq]: 8207011


  65 #define inlasm_eieio()    __asm__ __volatile__ ("eieio"  : : : "memory");
  66 #define inlasm_isync()    __asm__ __volatile__ ("isync"  : : : "memory");
  67 // Use twi-isync for load_acquire (faster than lwsync).
  68 // ATTENTION: seems like xlC 10.1 has problems with this inline assembler macro (VerifyMethodHandles found "bad vminfo in AMH.conv"):
  69 // #define inlasm_acquire_reg(X) __asm__ __volatile__ ("twi 0,%0,0\n isync\n" : : "r" (X) : "memory");
  70 #define inlasm_acquire_reg(X) inlasm_lwsync();
  71 
  72 inline void OrderAccess::loadload()   { inlasm_lwsync(); }
  73 inline void OrderAccess::storestore() { inlasm_lwsync(); }
  74 inline void OrderAccess::loadstore()  { inlasm_lwsync(); }
  75 inline void OrderAccess::storeload()  { inlasm_sync();   }
  76 
  77 inline void OrderAccess::acquire()    { inlasm_lwsync(); }
  78 inline void OrderAccess::release()    { inlasm_lwsync(); }
  79 inline void OrderAccess::fence()      { inlasm_sync();   }
  80 
  81 template<size_t byte_size>
  82 struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>
  83 {
  84   template <typename T>
  85   T operator()(const volatile T* p) const { register T t = Atomic::load(p); inlasm_acquire_reg(t); return t; }
  86 };
  87 
  88 #undef inlasm_sync
  89 #undef inlasm_lwsync
  90 #undef inlasm_eieio
  91 #undef inlasm_isync
  92 
  93 #endif // OS_CPU_AIX_OJDKPPC_VM_ORDERACCESS_AIX_PPC_HPP


  65 #define inlasm_eieio()    __asm__ __volatile__ ("eieio"  : : : "memory");
  66 #define inlasm_isync()    __asm__ __volatile__ ("isync"  : : : "memory");
  67 // Use twi-isync for load_acquire (faster than lwsync).
  68 // ATTENTION: seems like xlC 10.1 has problems with this inline assembler macro (VerifyMethodHandles found "bad vminfo in AMH.conv"):
  69 // #define inlasm_acquire_reg(X) __asm__ __volatile__ ("twi 0,%0,0\n isync\n" : : "r" (X) : "memory");
  70 #define inlasm_acquire_reg(X) inlasm_lwsync();
  71 
  72 inline void OrderAccess::loadload()   { inlasm_lwsync(); }
  73 inline void OrderAccess::storestore() { inlasm_lwsync(); }
  74 inline void OrderAccess::loadstore()  { inlasm_lwsync(); }
  75 inline void OrderAccess::storeload()  { inlasm_sync();   }
  76 
  77 inline void OrderAccess::acquire()    { inlasm_lwsync(); }
  78 inline void OrderAccess::release()    { inlasm_lwsync(); }
  79 inline void OrderAccess::fence()      { inlasm_sync();   }
  80 
  81 template<size_t byte_size>
  82 struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>
  83 {
  84   template <typename T>
  85   T operator()(const volatile T* p) const { T t = Atomic::load(p); inlasm_acquire_reg(t); return t; }
  86 };
  87 
  88 #undef inlasm_sync
  89 #undef inlasm_lwsync
  90 #undef inlasm_eieio
  91 #undef inlasm_isync
  92 
  93 #endif // OS_CPU_AIX_OJDKPPC_VM_ORDERACCESS_AIX_PPC_HPP
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