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src/os_cpu/solaris_x86/vm/atomic_solaris_x86.hpp

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rev 13452 : imported patch Atomic_cmpxchg
rev 13453 : imported patch Atomic_add
rev 13454 : [mq]: Atomic_add_v2


  34 inline void Atomic::store_ptr(void*    store_value, void*     dest) { *(void**)dest = store_value; }
  35 
  36 inline void Atomic::store    (jbyte    store_value, volatile jbyte*    dest) { *dest = store_value; }
  37 inline void Atomic::store    (jshort   store_value, volatile jshort*   dest) { *dest = store_value; }
  38 inline void Atomic::store    (jint     store_value, volatile jint*     dest) { *dest = store_value; }
  39 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
  40 inline void Atomic::store_ptr(void*    store_value, volatile void*     dest) { *(void* volatile *)dest = store_value; }
  41 
  42 inline void Atomic::inc    (volatile jint*     dest) { (void)add    (1, dest); }
  43 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); }
  44 inline void Atomic::inc_ptr(volatile void*     dest) { (void)add_ptr(1, dest); }
  45 
  46 inline void Atomic::dec    (volatile jint*     dest) { (void)add    (-1, dest); }
  47 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); }
  48 inline void Atomic::dec_ptr(volatile void*     dest) { (void)add_ptr(-1, dest); }
  49 
  50 // For Sun Studio - implementation is in solaris_x86_64.il.
  51 
  52 extern "C" {
  53   jint _Atomic_add(jint add_value, volatile jint* dest);


  54   jint _Atomic_xchg(jint exchange_value, volatile jint* dest);
  55   jbyte _Atomic_cmpxchg_byte(jbyte exchange_value, volatile jbyte* dest,
  56                              jbyte compare_value);
  57   jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest,
  58                        jint compare_value);
  59   jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest,
  60                              jlong compare_value);
  61 }
  62 
  63 inline jint     Atomic::add    (jint     add_value, volatile jint*     dest) {
  64   return _Atomic_add(add_value, dest);


























  65 }
  66 



  67 inline jint     Atomic::xchg       (jint     exchange_value, volatile jint*     dest) {
  68   return _Atomic_xchg(exchange_value, dest);
  69 }
  70 
  71 // Not using cmpxchg_using_helper here, because some configurations of
  72 // Solaris compiler don't deal well with passing a "defined in .il"
  73 // function as an argument.  We *should* switch to using gcc-style
  74 // inline assembly, but attempting to do so with Studio 12.4 ran into
  75 // segfaults.
  76 
  77 template<>
  78 template<typename T>
  79 inline T Atomic::PlatformCmpxchg<1>::operator()(T exchange_value,
  80                                                 T volatile* dest,
  81                                                 T compare_value,
  82                                                 cmpxchg_memory_order order) const {
  83   STATIC_ASSERT(1 == sizeof(T));
  84   return PrimitiveConversions::cast<T>(
  85     _Atomic_cmpxchg_byte(PrimitiveConversions::cast<jbyte>(exchange_value),
  86                          reinterpret_cast<jbyte volatile*>(dest),


  98     _Atomic_cmpxchg(PrimitiveConversions::cast<jint>(exchange_value),
  99                     reinterpret_cast<jint volatile*>(dest),
 100                     PrimitiveConversions::cast<jint>(compare_value)));
 101 }
 102 
 103 template<>
 104 template<typename T>
 105 inline T Atomic::PlatformCmpxchg<8>::operator()(T exchange_value,
 106                                                 T volatile* dest,
 107                                                 T compare_value,
 108                                                 cmpxchg_memory_order order) const {
 109   STATIC_ASSERT(8 == sizeof(T));
 110   return PrimitiveConversions::cast<T>(
 111     _Atomic_cmpxchg_long(PrimitiveConversions::cast<jlong>(exchange_value),
 112                          reinterpret_cast<jlong volatile*>(dest),
 113                          PrimitiveConversions::cast<jlong>(compare_value)));
 114 }
 115 
 116 inline void Atomic::store    (jlong    store_value, jlong*             dest) { *dest = store_value; }
 117 inline void Atomic::store    (jlong    store_value, volatile jlong*    dest) { *dest = store_value; }
 118 extern "C" jlong _Atomic_add_long(jlong add_value, volatile jlong* dest);
 119 extern "C" jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest);
 120 
 121 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
 122   return (intptr_t)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest);
 123 }
 124 
 125 inline void*    Atomic::add_ptr(intptr_t add_value, volatile void*     dest) {
 126   return (void*)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest);
 127 }
 128 
 129 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
 130   return (intptr_t)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest);
 131 }
 132 
 133 inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {
 134   return (void*)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest);
 135 }
 136 
 137 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
 138 
 139 #endif // OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_HPP


  34 inline void Atomic::store_ptr(void*    store_value, void*     dest) { *(void**)dest = store_value; }
  35 
  36 inline void Atomic::store    (jbyte    store_value, volatile jbyte*    dest) { *dest = store_value; }
  37 inline void Atomic::store    (jshort   store_value, volatile jshort*   dest) { *dest = store_value; }
  38 inline void Atomic::store    (jint     store_value, volatile jint*     dest) { *dest = store_value; }
  39 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
  40 inline void Atomic::store_ptr(void*    store_value, volatile void*     dest) { *(void* volatile *)dest = store_value; }
  41 
  42 inline void Atomic::inc    (volatile jint*     dest) { (void)add    (1, dest); }
  43 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); }
  44 inline void Atomic::inc_ptr(volatile void*     dest) { (void)add_ptr(1, dest); }
  45 
  46 inline void Atomic::dec    (volatile jint*     dest) { (void)add    (-1, dest); }
  47 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); }
  48 inline void Atomic::dec_ptr(volatile void*     dest) { (void)add_ptr(-1, dest); }
  49 
  50 // For Sun Studio - implementation is in solaris_x86_64.il.
  51 
  52 extern "C" {
  53   jint _Atomic_add(jint add_value, volatile jint* dest);
  54   jlong _Atomic_add_long(jlong add_value, volatile jlong* dest);
  55 
  56   jint _Atomic_xchg(jint exchange_value, volatile jint* dest);
  57   jbyte _Atomic_cmpxchg_byte(jbyte exchange_value, volatile jbyte* dest,
  58                              jbyte compare_value);
  59   jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest,
  60                        jint compare_value);
  61   jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest,
  62                              jlong compare_value);
  63 }
  64 
  65 template<size_t byte_size>
  66 struct Atomic::PlatformAdd
  67   : Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
  68 {
  69   template<typename I, typename D>
  70   D add_and_fetch(I add_value, D volatile* dest) const;
  71 };
  72 
  73 // Not using add_using_helper; see comment for cmpxchg.
  74 template<>
  75 template<typename I, typename D>
  76 inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest) const {
  77   STATIC_ASSERT(4 == sizeof(I));
  78   STATIC_ASSERT(4 == sizeof(D));
  79   return PrimitiveConversions::cast<D>(
  80     _Atomic_add(PrimitiveConversions::cast<jint>(add_value),
  81                 reinterpret_cast<jint volatile*>(dest)));
  82 }
  83 
  84 // Not using add_using_helper; see comment for cmpxchg.
  85 template<>
  86 template<typename I, typename D>
  87 inline D Atomic::PlatformAdd<8>::add_and_fetch(I add_value, D volatile* dest) const {
  88   STATIC_ASSERT(8 == sizeof(I));
  89   STATIC_ASSERT(8 == sizeof(D));
  90   return PrimitiveConversions::cast<D>(
  91     _Atomic_add_long(PrimitiveConversions::cast<jlong>(add_value),
  92                      reinterpret_cast<jlong volatile*>(dest)));
  93 }
  94 
  95 template<>
  96 struct Atomic::PlatformAdd<2>: Atomic::AddShortUsingInt {};
  97 
  98 inline jint     Atomic::xchg       (jint     exchange_value, volatile jint*     dest) {
  99   return _Atomic_xchg(exchange_value, dest);
 100 }
 101 
 102 // Not using cmpxchg_using_helper here, because some configurations of
 103 // Solaris compiler don't deal well with passing a "defined in .il"
 104 // function as an argument.  We *should* switch to using gcc-style
 105 // inline assembly, but attempting to do so with Studio 12.4 ran into
 106 // segfaults.
 107 
 108 template<>
 109 template<typename T>
 110 inline T Atomic::PlatformCmpxchg<1>::operator()(T exchange_value,
 111                                                 T volatile* dest,
 112                                                 T compare_value,
 113                                                 cmpxchg_memory_order order) const {
 114   STATIC_ASSERT(1 == sizeof(T));
 115   return PrimitiveConversions::cast<T>(
 116     _Atomic_cmpxchg_byte(PrimitiveConversions::cast<jbyte>(exchange_value),
 117                          reinterpret_cast<jbyte volatile*>(dest),


 129     _Atomic_cmpxchg(PrimitiveConversions::cast<jint>(exchange_value),
 130                     reinterpret_cast<jint volatile*>(dest),
 131                     PrimitiveConversions::cast<jint>(compare_value)));
 132 }
 133 
 134 template<>
 135 template<typename T>
 136 inline T Atomic::PlatformCmpxchg<8>::operator()(T exchange_value,
 137                                                 T volatile* dest,
 138                                                 T compare_value,
 139                                                 cmpxchg_memory_order order) const {
 140   STATIC_ASSERT(8 == sizeof(T));
 141   return PrimitiveConversions::cast<T>(
 142     _Atomic_cmpxchg_long(PrimitiveConversions::cast<jlong>(exchange_value),
 143                          reinterpret_cast<jlong volatile*>(dest),
 144                          PrimitiveConversions::cast<jlong>(compare_value)));
 145 }
 146 
 147 inline void Atomic::store    (jlong    store_value, jlong*             dest) { *dest = store_value; }
 148 inline void Atomic::store    (jlong    store_value, volatile jlong*    dest) { *dest = store_value; }

 149 extern "C" jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest);








 150 
 151 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
 152   return (intptr_t)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest);
 153 }
 154 
 155 inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {
 156   return (void*)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest);
 157 }
 158 
 159 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
 160 
 161 #endif // OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_HPP
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