185 } |
185 } |
186 |
186 |
187 |
187 |
188 void InterpreterMacroAssembler::get_cache_index_at_bcp(Register index, |
188 void InterpreterMacroAssembler::get_cache_index_at_bcp(Register index, |
189 int bcp_offset, |
189 int bcp_offset, |
190 bool giant_index) { |
190 size_t index_size) { |
191 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); |
191 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); |
192 if (!giant_index) { |
192 if (index_size == sizeof(u2)) { |
193 load_unsigned_short(index, Address(r13, bcp_offset)); |
193 load_unsigned_short(index, Address(r13, bcp_offset)); |
194 } else { |
194 } else if (index_size == sizeof(u4)) { |
195 assert(EnableInvokeDynamic, "giant index used only for EnableInvokeDynamic"); |
195 assert(EnableInvokeDynamic, "giant index used only for EnableInvokeDynamic"); |
196 movl(index, Address(r13, bcp_offset)); |
196 movl(index, Address(r13, bcp_offset)); |
197 // Check if the secondary index definition is still ~x, otherwise |
197 // Check if the secondary index definition is still ~x, otherwise |
198 // we have to change the following assembler code to calculate the |
198 // we have to change the following assembler code to calculate the |
199 // plain index. |
199 // plain index. |
200 assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line"); |
200 assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line"); |
201 notl(index); // convert to plain index |
201 notl(index); // convert to plain index |
|
202 } else if (index_size == sizeof(u1)) { |
|
203 assert(EnableMethodHandles, "tiny index used only for EnableMethodHandles"); |
|
204 load_unsigned_byte(index, Address(r13, bcp_offset)); |
|
205 } else { |
|
206 ShouldNotReachHere(); |
202 } |
207 } |
203 } |
208 } |
204 |
209 |
205 |
210 |
206 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, |
211 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, |
207 Register index, |
212 Register index, |
208 int bcp_offset, |
213 int bcp_offset, |
209 bool giant_index) { |
214 size_t index_size) { |
210 assert(cache != index, "must use different registers"); |
215 assert(cache != index, "must use different registers"); |
211 get_cache_index_at_bcp(index, bcp_offset, giant_index); |
216 get_cache_index_at_bcp(index, bcp_offset, index_size); |
212 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
217 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
213 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); |
218 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); |
214 // convert from field index to ConstantPoolCacheEntry index |
219 // convert from field index to ConstantPoolCacheEntry index |
215 shll(index, 2); |
220 shll(index, 2); |
216 } |
221 } |
217 |
222 |
218 |
223 |
219 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, |
224 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, |
220 Register tmp, |
225 Register tmp, |
221 int bcp_offset, |
226 int bcp_offset, |
222 bool giant_index) { |
227 size_t index_size) { |
223 assert(cache != tmp, "must use different register"); |
228 assert(cache != tmp, "must use different register"); |
224 get_cache_index_at_bcp(tmp, bcp_offset, giant_index); |
229 get_cache_index_at_bcp(tmp, bcp_offset, index_size); |
225 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); |
230 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); |
226 // convert from field index to ConstantPoolCacheEntry index |
231 // convert from field index to ConstantPoolCacheEntry index |
227 // and from word offset to byte offset |
232 // and from word offset to byte offset |
228 shll(tmp, 2 + LogBytesPerWord); |
233 shll(tmp, 2 + LogBytesPerWord); |
229 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
234 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |