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hotspot/src/share/vm/opto/library_call.cpp
changeset 33449 8aca535611b8
parent 33198 b37ad9fbf681
child 33451 0712796e4039
equal deleted inserted replaced
33447:fa16119dcde7 33449:8aca535611b8 
   232   Node* make_unsafe_address(Node* base, Node* offset);
 
   232   Node* make_unsafe_address(Node* base, Node* offset);
 
   233   // Helper for inline_unsafe_access.
 
   233   // Helper for inline_unsafe_access.
 
   234   // Generates the guards that check whether the result of
 
   234   // Generates the guards that check whether the result of
 
   235   // Unsafe.getObject should be recorded in an SATB log buffer.
 
   235   // Unsafe.getObject should be recorded in an SATB log buffer.
 
   236   void insert_pre_barrier(Node* base_oop, Node* offset, Node* pre_val, bool need_mem_bar);
 
   236   void insert_pre_barrier(Node* base_oop, Node* offset, Node* pre_val, bool need_mem_bar);
 
   237   bool inline_unsafe_access(bool is_native_ptr, bool is_store, BasicType type, bool is_volatile);
 
   237   bool inline_unsafe_access(bool is_native_ptr, bool is_store, BasicType type, bool is_volatile, bool is_unaligned);
 
   238   static bool klass_needs_init_guard(Node* kls);
 
   238   static bool klass_needs_init_guard(Node* kls);
 
   239   bool inline_unsafe_allocate();
 
   239   bool inline_unsafe_allocate();
 
   240   bool inline_unsafe_copyMemory();
 
   240   bool inline_unsafe_copyMemory();
 
   241   bool inline_native_currentThread();
 
   241   bool inline_native_currentThread();
 
   242 #ifdef TRACE_HAVE_INTRINSICS
 
   242 #ifdef TRACE_HAVE_INTRINSICS
 
   513 
   513 
   514   case vmIntrinsics::_compareTo:                return inline_string_compareTo();
 
   514   case vmIntrinsics::_compareTo:                return inline_string_compareTo();
 
   515   case vmIntrinsics::_indexOf:                  return inline_string_indexOf();
 
   515   case vmIntrinsics::_indexOf:                  return inline_string_indexOf();
 
   516   case vmIntrinsics::_equals:                   return inline_string_equals();
 
   516   case vmIntrinsics::_equals:                   return inline_string_equals();
 
   517 
   517 
   518   case vmIntrinsics::_getObject:                return inline_unsafe_access(!is_native_ptr, !is_store, T_OBJECT,  !is_volatile);
 
   518   case vmIntrinsics::_getObject:                return inline_unsafe_access(!is_native_ptr, !is_store, T_OBJECT,  !is_volatile, false);
 
   519   case vmIntrinsics::_getBoolean:               return inline_unsafe_access(!is_native_ptr, !is_store, T_BOOLEAN, !is_volatile);
 
   519   case vmIntrinsics::_getBoolean:               return inline_unsafe_access(!is_native_ptr, !is_store, T_BOOLEAN, !is_volatile, false);
 
   520   case vmIntrinsics::_getByte:                  return inline_unsafe_access(!is_native_ptr, !is_store, T_BYTE,    !is_volatile);
 
   520   case vmIntrinsics::_getByte:                  return inline_unsafe_access(!is_native_ptr, !is_store, T_BYTE,    !is_volatile, false);
 
   521   case vmIntrinsics::_getShort:                 return inline_unsafe_access(!is_native_ptr, !is_store, T_SHORT,   !is_volatile);
 
   521   case vmIntrinsics::_getShort:                 return inline_unsafe_access(!is_native_ptr, !is_store, T_SHORT,   !is_volatile, false);
 
   522   case vmIntrinsics::_getChar:                  return inline_unsafe_access(!is_native_ptr, !is_store, T_CHAR,    !is_volatile);
 
   522   case vmIntrinsics::_getChar:                  return inline_unsafe_access(!is_native_ptr, !is_store, T_CHAR,    !is_volatile, false);
 
   523   case vmIntrinsics::_getInt:                   return inline_unsafe_access(!is_native_ptr, !is_store, T_INT,     !is_volatile);
 
   523   case vmIntrinsics::_getInt:                   return inline_unsafe_access(!is_native_ptr, !is_store, T_INT,     !is_volatile, false);
 
   524   case vmIntrinsics::_getLong:                  return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG,    !is_volatile);
 
   524   case vmIntrinsics::_getLong:                  return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG,    !is_volatile, false);
 
   525   case vmIntrinsics::_getFloat:                 return inline_unsafe_access(!is_native_ptr, !is_store, T_FLOAT,   !is_volatile);
 
   525   case vmIntrinsics::_getFloat:                 return inline_unsafe_access(!is_native_ptr, !is_store, T_FLOAT,   !is_volatile, false);
 
   526   case vmIntrinsics::_getDouble:                return inline_unsafe_access(!is_native_ptr, !is_store, T_DOUBLE,  !is_volatile);
 
   526   case vmIntrinsics::_getDouble:                return inline_unsafe_access(!is_native_ptr, !is_store, T_DOUBLE,  !is_volatile, false);
 
   527   case vmIntrinsics::_putObject:                return inline_unsafe_access(!is_native_ptr,  is_store, T_OBJECT,  !is_volatile);
 
   527   case vmIntrinsics::_putObject:                return inline_unsafe_access(!is_native_ptr,  is_store, T_OBJECT,  !is_volatile, false);
 
   528   case vmIntrinsics::_putBoolean:               return inline_unsafe_access(!is_native_ptr,  is_store, T_BOOLEAN, !is_volatile);
 
   528   case vmIntrinsics::_putBoolean:               return inline_unsafe_access(!is_native_ptr,  is_store, T_BOOLEAN, !is_volatile, false);
 
   529   case vmIntrinsics::_putByte:                  return inline_unsafe_access(!is_native_ptr,  is_store, T_BYTE,    !is_volatile);
 
   529   case vmIntrinsics::_putByte:                  return inline_unsafe_access(!is_native_ptr,  is_store, T_BYTE,    !is_volatile, false);
 
   530   case vmIntrinsics::_putShort:                 return inline_unsafe_access(!is_native_ptr,  is_store, T_SHORT,   !is_volatile);
 
   530   case vmIntrinsics::_putShort:                 return inline_unsafe_access(!is_native_ptr,  is_store, T_SHORT,   !is_volatile, false);
 
   531   case vmIntrinsics::_putChar:                  return inline_unsafe_access(!is_native_ptr,  is_store, T_CHAR,    !is_volatile);
 
   531   case vmIntrinsics::_putChar:                  return inline_unsafe_access(!is_native_ptr,  is_store, T_CHAR,    !is_volatile, false);
 
   532   case vmIntrinsics::_putInt:                   return inline_unsafe_access(!is_native_ptr,  is_store, T_INT,     !is_volatile);
 
   532   case vmIntrinsics::_putInt:                   return inline_unsafe_access(!is_native_ptr,  is_store, T_INT,     !is_volatile, false);
 
   533   case vmIntrinsics::_putLong:                  return inline_unsafe_access(!is_native_ptr,  is_store, T_LONG,    !is_volatile);
 
   533   case vmIntrinsics::_putLong:                  return inline_unsafe_access(!is_native_ptr,  is_store, T_LONG,    !is_volatile, false);
 
   534   case vmIntrinsics::_putFloat:                 return inline_unsafe_access(!is_native_ptr,  is_store, T_FLOAT,   !is_volatile);
 
   534   case vmIntrinsics::_putFloat:                 return inline_unsafe_access(!is_native_ptr,  is_store, T_FLOAT,   !is_volatile, false);
 
   535   case vmIntrinsics::_putDouble:                return inline_unsafe_access(!is_native_ptr,  is_store, T_DOUBLE,  !is_volatile);
 
   535   case vmIntrinsics::_putDouble:                return inline_unsafe_access(!is_native_ptr,  is_store, T_DOUBLE,  !is_volatile, false);
 
   536 
   536 
   537   case vmIntrinsics::_getByte_raw:              return inline_unsafe_access( is_native_ptr, !is_store, T_BYTE,    !is_volatile);
 
   537   case vmIntrinsics::_getByte_raw:              return inline_unsafe_access( is_native_ptr, !is_store, T_BYTE,    !is_volatile, false);
 
   538   case vmIntrinsics::_getShort_raw:             return inline_unsafe_access( is_native_ptr, !is_store, T_SHORT,   !is_volatile);
 
   538   case vmIntrinsics::_getShort_raw:             return inline_unsafe_access( is_native_ptr, !is_store, T_SHORT,   !is_volatile, false);
 
   539   case vmIntrinsics::_getChar_raw:              return inline_unsafe_access( is_native_ptr, !is_store, T_CHAR,    !is_volatile);
 
   539   case vmIntrinsics::_getChar_raw:              return inline_unsafe_access( is_native_ptr, !is_store, T_CHAR,    !is_volatile, false);
 
   540   case vmIntrinsics::_getInt_raw:               return inline_unsafe_access( is_native_ptr, !is_store, T_INT,     !is_volatile);
 
   540   case vmIntrinsics::_getInt_raw:               return inline_unsafe_access( is_native_ptr, !is_store, T_INT,     !is_volatile, false);
 
   541   case vmIntrinsics::_getLong_raw:              return inline_unsafe_access( is_native_ptr, !is_store, T_LONG,    !is_volatile);
 
   541   case vmIntrinsics::_getLong_raw:              return inline_unsafe_access( is_native_ptr, !is_store, T_LONG,    !is_volatile, false);
 
   542   case vmIntrinsics::_getFloat_raw:             return inline_unsafe_access( is_native_ptr, !is_store, T_FLOAT,   !is_volatile);
 
   542   case vmIntrinsics::_getFloat_raw:             return inline_unsafe_access( is_native_ptr, !is_store, T_FLOAT,   !is_volatile, false);
 
   543   case vmIntrinsics::_getDouble_raw:            return inline_unsafe_access( is_native_ptr, !is_store, T_DOUBLE,  !is_volatile);
 
   543   case vmIntrinsics::_getDouble_raw:            return inline_unsafe_access( is_native_ptr, !is_store, T_DOUBLE,  !is_volatile, false);
 
   544   case vmIntrinsics::_getAddress_raw:           return inline_unsafe_access( is_native_ptr, !is_store, T_ADDRESS, !is_volatile);
 
   544   case vmIntrinsics::_getAddress_raw:           return inline_unsafe_access( is_native_ptr, !is_store, T_ADDRESS, !is_volatile, false);
 
   545 
   545 
   546   case vmIntrinsics::_putByte_raw:              return inline_unsafe_access( is_native_ptr,  is_store, T_BYTE,    !is_volatile);
 
   546   case vmIntrinsics::_putByte_raw:              return inline_unsafe_access( is_native_ptr,  is_store, T_BYTE,    !is_volatile, false);
 
   547   case vmIntrinsics::_putShort_raw:             return inline_unsafe_access( is_native_ptr,  is_store, T_SHORT,   !is_volatile);
 
   547   case vmIntrinsics::_putShort_raw:             return inline_unsafe_access( is_native_ptr,  is_store, T_SHORT,   !is_volatile, false);
 
   548   case vmIntrinsics::_putChar_raw:              return inline_unsafe_access( is_native_ptr,  is_store, T_CHAR,    !is_volatile);
 
   548   case vmIntrinsics::_putChar_raw:              return inline_unsafe_access( is_native_ptr,  is_store, T_CHAR,    !is_volatile, false);
 
   549   case vmIntrinsics::_putInt_raw:               return inline_unsafe_access( is_native_ptr,  is_store, T_INT,     !is_volatile);
 
   549   case vmIntrinsics::_putInt_raw:               return inline_unsafe_access( is_native_ptr,  is_store, T_INT,     !is_volatile, false);
 
   550   case vmIntrinsics::_putLong_raw:              return inline_unsafe_access( is_native_ptr,  is_store, T_LONG,    !is_volatile);
 
   550   case vmIntrinsics::_putLong_raw:              return inline_unsafe_access( is_native_ptr,  is_store, T_LONG,    !is_volatile, false);
 
   551   case vmIntrinsics::_putFloat_raw:             return inline_unsafe_access( is_native_ptr,  is_store, T_FLOAT,   !is_volatile);
 
   551   case vmIntrinsics::_putFloat_raw:             return inline_unsafe_access( is_native_ptr,  is_store, T_FLOAT,   !is_volatile, false);
 
   552   case vmIntrinsics::_putDouble_raw:            return inline_unsafe_access( is_native_ptr,  is_store, T_DOUBLE,  !is_volatile);
 
   552   case vmIntrinsics::_putDouble_raw:            return inline_unsafe_access( is_native_ptr,  is_store, T_DOUBLE,  !is_volatile, false);
 
   553   case vmIntrinsics::_putAddress_raw:           return inline_unsafe_access( is_native_ptr,  is_store, T_ADDRESS, !is_volatile);
 
   553   case vmIntrinsics::_putAddress_raw:           return inline_unsafe_access( is_native_ptr,  is_store, T_ADDRESS, !is_volatile, false);
 
   554 
   554 
   555   case vmIntrinsics::_getObjectVolatile:        return inline_unsafe_access(!is_native_ptr, !is_store, T_OBJECT,   is_volatile);
 
   555   case vmIntrinsics::_getObjectVolatile:        return inline_unsafe_access(!is_native_ptr, !is_store, T_OBJECT,   is_volatile, false);
 
   556   case vmIntrinsics::_getBooleanVolatile:       return inline_unsafe_access(!is_native_ptr, !is_store, T_BOOLEAN,  is_volatile);
 
   556   case vmIntrinsics::_getBooleanVolatile:       return inline_unsafe_access(!is_native_ptr, !is_store, T_BOOLEAN,  is_volatile, false);
 
   557   case vmIntrinsics::_getByteVolatile:          return inline_unsafe_access(!is_native_ptr, !is_store, T_BYTE,     is_volatile);
 
   557   case vmIntrinsics::_getByteVolatile:          return inline_unsafe_access(!is_native_ptr, !is_store, T_BYTE,     is_volatile, false);
 
   558   case vmIntrinsics::_getShortVolatile:         return inline_unsafe_access(!is_native_ptr, !is_store, T_SHORT,    is_volatile);
 
   558   case vmIntrinsics::_getShortVolatile:         return inline_unsafe_access(!is_native_ptr, !is_store, T_SHORT,    is_volatile, false);
 
   559   case vmIntrinsics::_getCharVolatile:          return inline_unsafe_access(!is_native_ptr, !is_store, T_CHAR,     is_volatile);
 
   559   case vmIntrinsics::_getCharVolatile:          return inline_unsafe_access(!is_native_ptr, !is_store, T_CHAR,     is_volatile, false);
 
   560   case vmIntrinsics::_getIntVolatile:           return inline_unsafe_access(!is_native_ptr, !is_store, T_INT,      is_volatile);
 
   560   case vmIntrinsics::_getIntVolatile:           return inline_unsafe_access(!is_native_ptr, !is_store, T_INT,      is_volatile, false);
 
   561   case vmIntrinsics::_getLongVolatile:          return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG,     is_volatile);
 
   561   case vmIntrinsics::_getLongVolatile:          return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG,     is_volatile, false);
 
   562   case vmIntrinsics::_getFloatVolatile:         return inline_unsafe_access(!is_native_ptr, !is_store, T_FLOAT,    is_volatile);
 
   562   case vmIntrinsics::_getFloatVolatile:         return inline_unsafe_access(!is_native_ptr, !is_store, T_FLOAT,    is_volatile, false);
 
   563   case vmIntrinsics::_getDoubleVolatile:        return inline_unsafe_access(!is_native_ptr, !is_store, T_DOUBLE,   is_volatile);
 
   563   case vmIntrinsics::_getDoubleVolatile:        return inline_unsafe_access(!is_native_ptr, !is_store, T_DOUBLE,   is_volatile, false);
 
   564 
   564 
   565   case vmIntrinsics::_putObjectVolatile:        return inline_unsafe_access(!is_native_ptr,  is_store, T_OBJECT,   is_volatile);
 
   565   case vmIntrinsics::_putObjectVolatile:        return inline_unsafe_access(!is_native_ptr,  is_store, T_OBJECT,   is_volatile, false);
 
   566   case vmIntrinsics::_putBooleanVolatile:       return inline_unsafe_access(!is_native_ptr,  is_store, T_BOOLEAN,  is_volatile);
 
   566   case vmIntrinsics::_putBooleanVolatile:       return inline_unsafe_access(!is_native_ptr,  is_store, T_BOOLEAN,  is_volatile, false);
 
   567   case vmIntrinsics::_putByteVolatile:          return inline_unsafe_access(!is_native_ptr,  is_store, T_BYTE,     is_volatile);
 
   567   case vmIntrinsics::_putByteVolatile:          return inline_unsafe_access(!is_native_ptr,  is_store, T_BYTE,     is_volatile, false);
 
   568   case vmIntrinsics::_putShortVolatile:         return inline_unsafe_access(!is_native_ptr,  is_store, T_SHORT,    is_volatile);
 
   568   case vmIntrinsics::_putShortVolatile:         return inline_unsafe_access(!is_native_ptr,  is_store, T_SHORT,    is_volatile, false);
 
   569   case vmIntrinsics::_putCharVolatile:          return inline_unsafe_access(!is_native_ptr,  is_store, T_CHAR,     is_volatile);
 
   569   case vmIntrinsics::_putCharVolatile:          return inline_unsafe_access(!is_native_ptr,  is_store, T_CHAR,     is_volatile, false);
 
   570   case vmIntrinsics::_putIntVolatile:           return inline_unsafe_access(!is_native_ptr,  is_store, T_INT,      is_volatile);
 
   570   case vmIntrinsics::_putIntVolatile:           return inline_unsafe_access(!is_native_ptr,  is_store, T_INT,      is_volatile, false);
 
   571   case vmIntrinsics::_putLongVolatile:          return inline_unsafe_access(!is_native_ptr,  is_store, T_LONG,     is_volatile);
 
   571   case vmIntrinsics::_putLongVolatile:          return inline_unsafe_access(!is_native_ptr,  is_store, T_LONG,     is_volatile, false);
 
   572   case vmIntrinsics::_putFloatVolatile:         return inline_unsafe_access(!is_native_ptr,  is_store, T_FLOAT,    is_volatile);
 
   572   case vmIntrinsics::_putFloatVolatile:         return inline_unsafe_access(!is_native_ptr,  is_store, T_FLOAT,    is_volatile, false);
 
   573   case vmIntrinsics::_putDoubleVolatile:        return inline_unsafe_access(!is_native_ptr,  is_store, T_DOUBLE,   is_volatile);
 
   573   case vmIntrinsics::_putDoubleVolatile:        return inline_unsafe_access(!is_native_ptr,  is_store, T_DOUBLE,   is_volatile, false);
 
   574 
   574 
   575   case vmIntrinsics::_getShortUnaligned:        return inline_unsafe_access(!is_native_ptr, !is_store, T_SHORT,   !is_volatile);
 
   575   case vmIntrinsics::_getShortUnaligned:        return inline_unsafe_access(!is_native_ptr, !is_store, T_SHORT,   !is_volatile, true);
 
   576   case vmIntrinsics::_getCharUnaligned:         return inline_unsafe_access(!is_native_ptr, !is_store, T_CHAR,    !is_volatile);
 
   576   case vmIntrinsics::_getCharUnaligned:         return inline_unsafe_access(!is_native_ptr, !is_store, T_CHAR,    !is_volatile, true);
 
   577   case vmIntrinsics::_getIntUnaligned:          return inline_unsafe_access(!is_native_ptr, !is_store, T_INT,     !is_volatile);
 
   577   case vmIntrinsics::_getIntUnaligned:          return inline_unsafe_access(!is_native_ptr, !is_store, T_INT,     !is_volatile, true);
 
   578   case vmIntrinsics::_getLongUnaligned:         return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG,    !is_volatile);
 
   578   case vmIntrinsics::_getLongUnaligned:         return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG,    !is_volatile, true);
 
   579 
   579 
   580   case vmIntrinsics::_putShortUnaligned:        return inline_unsafe_access(!is_native_ptr,  is_store, T_SHORT,   !is_volatile);
 
   580   case vmIntrinsics::_putShortUnaligned:        return inline_unsafe_access(!is_native_ptr,  is_store, T_SHORT,   !is_volatile, true);
 
   581   case vmIntrinsics::_putCharUnaligned:         return inline_unsafe_access(!is_native_ptr,  is_store, T_CHAR,    !is_volatile);
 
   581   case vmIntrinsics::_putCharUnaligned:         return inline_unsafe_access(!is_native_ptr,  is_store, T_CHAR,    !is_volatile, true);
 
   582   case vmIntrinsics::_putIntUnaligned:          return inline_unsafe_access(!is_native_ptr,  is_store, T_INT,     !is_volatile);
 
   582   case vmIntrinsics::_putIntUnaligned:          return inline_unsafe_access(!is_native_ptr,  is_store, T_INT,     !is_volatile, true);
 
   583   case vmIntrinsics::_putLongUnaligned:         return inline_unsafe_access(!is_native_ptr,  is_store, T_LONG,    !is_volatile);
 
   583   case vmIntrinsics::_putLongUnaligned:         return inline_unsafe_access(!is_native_ptr,  is_store, T_LONG,    !is_volatile, true);
 
   584 
   584 
   585   case vmIntrinsics::_compareAndSwapObject:     return inline_unsafe_load_store(T_OBJECT, LS_cmpxchg);
 
   585   case vmIntrinsics::_compareAndSwapObject:     return inline_unsafe_load_store(T_OBJECT, LS_cmpxchg);
 
   586   case vmIntrinsics::_compareAndSwapInt:        return inline_unsafe_load_store(T_INT,    LS_cmpxchg);
 
   586   case vmIntrinsics::_compareAndSwapInt:        return inline_unsafe_load_store(T_INT,    LS_cmpxchg);
 
   587   case vmIntrinsics::_compareAndSwapLong:       return inline_unsafe_load_store(T_LONG,   LS_cmpxchg);
 
   587   case vmIntrinsics::_compareAndSwapLong:       return inline_unsafe_load_store(T_LONG,   LS_cmpxchg);
 
   588 
   588 
  2270     return tjp;
 
  2270     return tjp;
 
  2271   }
 
  2271   }
 
  2272   return NULL;
 
  2272   return NULL;
 
  2273 }
 
  2273 }
 
  2274 
  2274 
  2275 bool LibraryCallKit::inline_unsafe_access(bool is_native_ptr, bool is_store, BasicType type, bool is_volatile) {
 
  2275 bool LibraryCallKit::inline_unsafe_access(bool is_native_ptr, bool is_store, BasicType type, bool is_volatile, bool unaligned) {
 
  2276   if (callee()->is_static())  return false;  // caller must have the capability!
 
  2276   if (callee()->is_static())  return false;  // caller must have the capability!
 
  2277 
  2277 
  2278 #ifndef PRODUCT
 
  2278 #ifndef PRODUCT
 
  2279   {
 
  2279   {
 
  2280     ResourceMark rm;
 
  2280     ResourceMark rm;
 
  2412   // exception paths do not take memory state from the memory barrier,
 
  2412   // exception paths do not take memory state from the memory barrier,
 
  2413   // so there's no problems making a strong assert about mixing users
 
  2413   // so there's no problems making a strong assert about mixing users
 
  2414   // of safe & unsafe memory.
 
  2414   // of safe & unsafe memory.
 
  2415   if (need_mem_bar) insert_mem_bar(Op_MemBarCPUOrder);
 
  2415   if (need_mem_bar) insert_mem_bar(Op_MemBarCPUOrder);
 
  2416 
  2416 
  2417    if (!is_store) {
 
  2417   assert(is_native_ptr || alias_type->adr_type() == TypeOopPtr::BOTTOM ||
 
       
  2418          alias_type->field() != NULL || alias_type->element() != NULL, "field, array element or unknown");
 
       
  2419   bool mismatched = false;
 
       
  2420   if (alias_type->element() != NULL || alias_type->field() != NULL) {
 
       
  2421     BasicType bt;
 
       
  2422     if (alias_type->element() != NULL) {
 
       
  2423       const Type* element = alias_type->element();
 
       
  2424       bt = element->isa_narrowoop() ? T_OBJECT : element->array_element_basic_type();
 
       
  2425     } else {
 
       
  2426       bt = alias_type->field()->type()->basic_type();
 
       
  2427     }
 
       
  2428     if (bt != type) {
 
       
  2429       mismatched = true;
 
       
  2430     }
 
       
  2431   }
 
       
  2432   assert(type != T_OBJECT || !unaligned, "unaligned access not supported with object type");
 
       
  2433 
       
  2434   if (!is_store) {
 
  2418     Node* p = NULL;
 
  2435     Node* p = NULL;
 
  2419     // Try to constant fold a load from a constant field
 
  2436     // Try to constant fold a load from a constant field
 
  2420     ciField* field = alias_type->field();
 
  2437     ciField* field = alias_type->field();
 
  2421     if (heap_base_oop != top() &&
 
  2438     if (heap_base_oop != top() &&
 
  2422         field != NULL && field->is_constant() && field->layout_type() == type) {
 
  2439         field != NULL && field->is_constant() && field->layout_type() == type) {
 
  2428     }
 
  2445     }
 
  2429     if (p == NULL) {
 
  2446     if (p == NULL) {
 
  2430       MemNode::MemOrd mo = is_volatile ? MemNode::acquire : MemNode::unordered;
 
  2447       MemNode::MemOrd mo = is_volatile ? MemNode::acquire : MemNode::unordered;
 
  2431       // To be valid, unsafe loads may depend on other conditions than
 
  2448       // To be valid, unsafe loads may depend on other conditions than
 
  2432       // the one that guards them: pin the Load node
 
  2449       // the one that guards them: pin the Load node
 
  2433       p = make_load(control(), adr, value_type, type, adr_type, mo, LoadNode::Pinned, is_volatile);
 
  2450       p = make_load(control(), adr, value_type, type, adr_type, mo, LoadNode::Pinned, is_volatile, unaligned, mismatched);
 
  2434       // load value
 
  2451       // load value
 
  2435       switch (type) {
 
  2452       switch (type) {
 
  2436       case T_BOOLEAN:
 
  2453       case T_BOOLEAN:
 
  2437       case T_CHAR:
 
  2454       case T_CHAR:
 
  2438       case T_BYTE:
 
  2455       case T_BYTE:
 
  2475       break;
 
  2492       break;
 
  2476     }
 
  2493     }
 
  2477 
  2494 
  2478     MemNode::MemOrd mo = is_volatile ? MemNode::release : MemNode::unordered;
 
  2495     MemNode::MemOrd mo = is_volatile ? MemNode::release : MemNode::unordered;
 
  2479     if (type != T_OBJECT ) {
 
  2496     if (type != T_OBJECT ) {
 
  2480       (void) store_to_memory(control(), adr, val, type, adr_type, mo, is_volatile);
 
  2497       (void) store_to_memory(control(), adr, val, type, adr_type, mo, is_volatile, unaligned, mismatched);
 
  2481     } else {
 
  2498     } else {
 
  2482       // Possibly an oop being stored to Java heap or native memory
 
  2499       // Possibly an oop being stored to Java heap or native memory
 
  2483       if (!TypePtr::NULL_PTR->higher_equal(_gvn.type(heap_base_oop))) {
 
  2500       if (!TypePtr::NULL_PTR->higher_equal(_gvn.type(heap_base_oop))) {
 
  2484         // oop to Java heap.
 
  2501         // oop to Java heap.
 
  2485         (void) store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, type, mo);
 
  2502         (void) store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, type, mo, mismatched);
 
  2486       } else {
 
  2503       } else {
 
  2487         // We can't tell at compile time if we are storing in the Java heap or outside
 
  2504         // We can't tell at compile time if we are storing in the Java heap or outside
 
  2488         // of it. So we need to emit code to conditionally do the proper type of
 
  2505         // of it. So we need to emit code to conditionally do the proper type of
 
  2489         // store.
 
  2506         // store.
 
  2490 
  2507 
  2492 #define __ ideal.
 
  2509 #define __ ideal.
 
  2493         // QQQ who knows what probability is here??
 
  2510         // QQQ who knows what probability is here??
 
  2494         __ if_then(heap_base_oop, BoolTest::ne, null(), PROB_UNLIKELY(0.999)); {
 
  2511         __ if_then(heap_base_oop, BoolTest::ne, null(), PROB_UNLIKELY(0.999)); {
 
  2495           // Sync IdealKit and graphKit.
 
  2512           // Sync IdealKit and graphKit.
 
  2496           sync_kit(ideal);
 
  2513           sync_kit(ideal);
 
  2497           Node* st = store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, type, mo);
 
  2514           Node* st = store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, type, mo, mismatched);
 
  2498           // Update IdealKit memory.
 
  2515           // Update IdealKit memory.
 
  2499           __ sync_kit(this);
 
  2516           __ sync_kit(this);
 
  2500         } __ else_(); {
 
  2517         } __ else_(); {
 
  2501           __ store(__ ctrl(), adr, val, type, alias_type->index(), mo, is_volatile);
 
  2518           __ store(__ ctrl(), adr, val, type, alias_type->index(), mo, is_volatile, mismatched);
 
  2502         } __ end_if();
 
  2519         } __ end_if();
 
  2503         // Final sync IdealKit and GraphKit.
 
  2520         // Final sync IdealKit and GraphKit.
 
  2504         final_sync(ideal);
 
  2521         final_sync(ideal);
 
  2505 #undef __
 
  2522 #undef __
 
  2506       }
 
  2523       }
jdk-sandbox