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hotspot/src/share/vm/oops/typeArrayOop.hpp

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 112 
 113   jlong long_at(int which) const                  { return *long_at_addr(which); }
 114   void long_at_put(int which, jlong contents)     { *long_at_addr(which) = contents; }
 115 
 116   jfloat float_at(int which) const                { return *float_at_addr(which); }
 117   void float_at_put(int which, jfloat contents)   { *float_at_addr(which) = contents; }
 118 
 119   jdouble double_at(int which) const              { return *double_at_addr(which); }
 120   void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; }
 121 
 122   jbyte byte_at_acquire(int which) const              { return OrderAccess::load_acquire(byte_at_addr(which)); }
 123   void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); }
 124 
 125   // Java thinks metadata arrays are just arrays of either long or int, since
 126   // there doesn't seem to be T_ADDRESS, so this is a bit of unfortunate
 127   // casting
 128 #ifdef _LP64
 129   Metadata* metadata_at(int which) const {
 130     return (Metadata*)*long_at_addr(which); }
 131   void metadata_at_put(int which, Metadata* contents) {
 132     *long_at_addr(which) = (long)contents;
 133   }
 134 #else
 135   Metadata* metadata_at(int which) const {
 136     return (Metadata*)*int_at_addr(which); }
 137   void metadata_at_put(int which, Metadata* contents) {
 138     *int_at_addr(which) = (int)contents;
 139   }
 140 #endif // _LP64
 141 
 142   // Sizing
 143 
 144   // Returns the number of words necessary to hold an array of "len"
 145   // elements each of the given "byte_size".
 146  private:
 147   static int object_size(int lh, int length) {
 148     int instance_header_size = Klass::layout_helper_header_size(lh);
 149     int element_shift = Klass::layout_helper_log2_element_size(lh);
 150     DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh));
 151     assert(length <= arrayOopDesc::max_array_length(etype), "no overflow");
 152 


 112 
 113   jlong long_at(int which) const                  { return *long_at_addr(which); }
 114   void long_at_put(int which, jlong contents)     { *long_at_addr(which) = contents; }
 115 
 116   jfloat float_at(int which) const                { return *float_at_addr(which); }
 117   void float_at_put(int which, jfloat contents)   { *float_at_addr(which) = contents; }
 118 
 119   jdouble double_at(int which) const              { return *double_at_addr(which); }
 120   void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; }
 121 
 122   jbyte byte_at_acquire(int which) const              { return OrderAccess::load_acquire(byte_at_addr(which)); }
 123   void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); }
 124 
 125   // Java thinks metadata arrays are just arrays of either long or int, since
 126   // there doesn't seem to be T_ADDRESS, so this is a bit of unfortunate
 127   // casting
 128 #ifdef _LP64
 129   Metadata* metadata_at(int which) const {
 130     return (Metadata*)*long_at_addr(which); }
 131   void metadata_at_put(int which, Metadata* contents) {
 132     *long_at_addr(which) = (jlong)contents;
 133   }
 134 #else
 135   Metadata* metadata_at(int which) const {
 136     return (Metadata*)*int_at_addr(which); }
 137   void metadata_at_put(int which, Metadata* contents) {
 138     *int_at_addr(which) = (int)contents;
 139   }
 140 #endif // _LP64
 141 
 142   // Sizing
 143 
 144   // Returns the number of words necessary to hold an array of "len"
 145   // elements each of the given "byte_size".
 146  private:
 147   static int object_size(int lh, int length) {
 148     int instance_header_size = Klass::layout_helper_header_size(lh);
 149     int element_shift = Klass::layout_helper_log2_element_size(lh);
 150     DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh));
 151     assert(length <= arrayOopDesc::max_array_length(etype), "no overflow");
 152 
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