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comparison src/cpu/x86/vm/interp_masm_x86_64.cpp @ 1108:85f13cdfbc1d

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6829192: JSR 292 needs to support 64-bit x86 Summary: changes for method handles and invokedynamic Reviewed-by: kvn
author twisti
date Wed, 16 Dec 2009 12:48:04 +0100
parents 6918603297f7
children 87684f1a88b5
comparison
equal deleted inserted replaced
1102:6dc5471e0f66 1108:85f13cdfbc1d
183 bswapl(reg); 183 bswapl(reg);
184 shrl(reg, 16); 184 shrl(reg, 16);
185 } 185 }
186 186
187 187
188 void InterpreterMacroAssembler::get_cache_index_at_bcp(Register index,
189 int bcp_offset,
190 bool giant_index) {
191 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
192 if (!giant_index) {
193 load_unsigned_short(index, Address(r13, bcp_offset));
194 } else {
195 assert(EnableInvokeDynamic, "giant index used only for EnableInvokeDynamic");
196 movl(index, Address(r13, bcp_offset));
197 // Check if the secondary index definition is still ~x, otherwise
198 // we have to change the following assembler code to calculate the
199 // plain index.
200 assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line");
201 notl(index); // convert to plain index
202 }
203 }
204
205
188 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, 206 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache,
189 Register index, 207 Register index,
190 int bcp_offset) { 208 int bcp_offset,
191 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); 209 bool giant_index) {
192 assert(cache != index, "must use different registers"); 210 assert(cache != index, "must use different registers");
193 load_unsigned_short(index, Address(r13, bcp_offset)); 211 get_cache_index_at_bcp(index, bcp_offset, giant_index);
194 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); 212 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
195 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); 213 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
196 // convert from field index to ConstantPoolCacheEntry index 214 // convert from field index to ConstantPoolCacheEntry index
197 shll(index, 2); 215 shll(index, 2);
198 } 216 }
199 217
200 218
201 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, 219 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache,
202 Register tmp, 220 Register tmp,
203 int bcp_offset) { 221 int bcp_offset,
204 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); 222 bool giant_index) {
205 assert(cache != tmp, "must use different register"); 223 assert(cache != tmp, "must use different register");
206 load_unsigned_short(tmp, Address(r13, bcp_offset)); 224 get_cache_index_at_bcp(tmp, bcp_offset, giant_index);
207 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below"); 225 assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
208 // convert from field index to ConstantPoolCacheEntry index 226 // convert from field index to ConstantPoolCacheEntry index
209 // and from word offset to byte offset 227 // and from word offset to byte offset
210 shll(tmp, 2 + LogBytesPerWord); 228 shll(tmp, 2 + LogBytesPerWord);
211 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); 229 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
1234 } 1252 }
1235 1253
1236 1254
1237 void InterpreterMacroAssembler::profile_virtual_call(Register receiver, 1255 void InterpreterMacroAssembler::profile_virtual_call(Register receiver,
1238 Register mdp, 1256 Register mdp,
1239 Register reg2) { 1257 Register reg2,
1258 bool receiver_can_be_null) {
1240 if (ProfileInterpreter) { 1259 if (ProfileInterpreter) {
1241 Label profile_continue; 1260 Label profile_continue;
1242 1261
1243 // If no method data exists, go to profile_continue. 1262 // If no method data exists, go to profile_continue.
1244 test_method_data_pointer(mdp, profile_continue); 1263 test_method_data_pointer(mdp, profile_continue);
1245 1264
1246 // We are making a call. Increment the count. 1265 // We are making a call. Increment the count.
1247 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); 1266 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
1248 1267
1268 Label skip_receiver_profile;
1269 if (receiver_can_be_null) {
1270 testptr(receiver, receiver);
1271 jcc(Assembler::zero, skip_receiver_profile);
1272 }
1273
1249 // Record the receiver type. 1274 // Record the receiver type.
1250 record_klass_in_profile(receiver, mdp, reg2); 1275 record_klass_in_profile(receiver, mdp, reg2);
1276 bind(skip_receiver_profile);
1251 1277
1252 // The method data pointer needs to be updated to reflect the new target. 1278 // The method data pointer needs to be updated to reflect the new target.
1253 update_mdp_by_constant(mdp, 1279 update_mdp_by_constant(mdp,
1254 in_bytes(VirtualCallData:: 1280 in_bytes(VirtualCallData::
1255 virtual_call_data_size())); 1281 virtual_call_data_size()));