122 // to flush other fields (f1, f2) completely to memory before the bytecodes
123 // are updated, lest other processors see a non-zero bytecode but zero f1/f2.
124 void ConstantPoolCacheEntry::set_field(Bytecodes::Code get_code,
125 Bytecodes::Code put_code,
126 Klass* field_holder,
127 int field_index,
128 int field_offset,
129 TosState field_type,
130 bool is_final,
131 bool is_volatile,
132 bool is_flatten,
133 bool is_flattenable,
134 Klass* root_klass) {
135 set_f1(field_holder);
136 set_f2(field_offset);
137 assert((field_index & field_index_mask) == field_index,
138 "field index does not fit in low flag bits");
139 set_field_flags(field_type,
140 ((is_volatile ? 1 : 0) << is_volatile_shift) |
141 ((is_final ? 1 : 0) << is_final_shift) |
142 ((is_flatten ? 1 : 0) << is_flatten_field) |
143 ((is_flattenable ? 1 : 0) << is_flattenable_field),
144 field_index);
145 set_bytecode_1(get_code);
146 set_bytecode_2(put_code);
147 NOT_PRODUCT(verify(tty));
148 }
149
150 void ConstantPoolCacheEntry::set_parameter_size(int value) {
151 // This routine is called only in corner cases where the CPCE is not yet initialized.
152 // See AbstractInterpreter::deopt_continue_after_entry.
153 assert(_flags == 0 || parameter_size() == 0 || parameter_size() == value,
154 "size must not change: parameter_size=%d, value=%d", parameter_size(), value);
155 // Setting the parameter size by itself is only safe if the
156 // current value of _flags is 0, otherwise another thread may have
157 // updated it and we don't want to overwrite that value. Don't
158 // bother trying to update it once it's nonzero but always make
159 // sure that the final parameter size agrees with what was passed.
160 if (_flags == 0) {
161 intx newflags = (value & parameter_size_mask);
162 Atomic::cmpxchg(newflags, &_flags, (intx)0);
163 }
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122 // to flush other fields (f1, f2) completely to memory before the bytecodes
123 // are updated, lest other processors see a non-zero bytecode but zero f1/f2.
124 void ConstantPoolCacheEntry::set_field(Bytecodes::Code get_code,
125 Bytecodes::Code put_code,
126 Klass* field_holder,
127 int field_index,
128 int field_offset,
129 TosState field_type,
130 bool is_final,
131 bool is_volatile,
132 bool is_flatten,
133 bool is_flattenable,
134 Klass* root_klass) {
135 set_f1(field_holder);
136 set_f2(field_offset);
137 assert((field_index & field_index_mask) == field_index,
138 "field index does not fit in low flag bits");
139 set_field_flags(field_type,
140 ((is_volatile ? 1 : 0) << is_volatile_shift) |
141 ((is_final ? 1 : 0) << is_final_shift) |
142 ((is_flatten ? 1 : 0) << is_flattened_field_shift) |
143 ((is_flattenable ? 1 : 0) << is_flattenable_field_shift),
144 field_index);
145 set_bytecode_1(get_code);
146 set_bytecode_2(put_code);
147 NOT_PRODUCT(verify(tty));
148 }
149
150 void ConstantPoolCacheEntry::set_parameter_size(int value) {
151 // This routine is called only in corner cases where the CPCE is not yet initialized.
152 // See AbstractInterpreter::deopt_continue_after_entry.
153 assert(_flags == 0 || parameter_size() == 0 || parameter_size() == value,
154 "size must not change: parameter_size=%d, value=%d", parameter_size(), value);
155 // Setting the parameter size by itself is only safe if the
156 // current value of _flags is 0, otherwise another thread may have
157 // updated it and we don't want to overwrite that value. Don't
158 // bother trying to update it once it's nonzero but always make
159 // sure that the final parameter size agrees with what was passed.
160 if (_flags == 0) {
161 intx newflags = (value & parameter_size_mask);
162 Atomic::cmpxchg(newflags, &_flags, (intx)0);
163 }
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