140 141 // visitor functions 142 void do_StoreField (StoreField* x) { 143 if (x->is_init_point() || // putstatic is an initialization point so treat it as a wide kill 144 // This is actually too strict and the JMM doesn't require 145 // this in all cases (e.g. load a; volatile store b; load a) 146 // but possible future optimizations might require this. 147 x->field()->is_volatile()) { 148 kill_memory(); 149 } else { 150 kill_field(x->field(), x->needs_patching()); 151 } 152 } 153 void do_StoreIndexed (StoreIndexed* x) { kill_array(x->type()); } 154 void do_MonitorEnter (MonitorEnter* x) { kill_memory(); } 155 void do_MonitorExit (MonitorExit* x) { kill_memory(); } 156 void do_Invoke (Invoke* x) { kill_memory(); } 157 void do_UnsafePutRaw (UnsafePutRaw* x) { kill_memory(); } 158 void do_UnsafePutObject(UnsafePutObject* x) { kill_memory(); } 159 void do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x) { kill_memory(); } 160 void do_Intrinsic (Intrinsic* x) { if (!x->preserves_state()) kill_memory(); } 161 162 void do_Phi (Phi* x) { /* nothing to do */ } 163 void do_Local (Local* x) { /* nothing to do */ } 164 void do_Constant (Constant* x) { /* nothing to do */ } 165 void do_LoadField (LoadField* x) { 166 if (x->is_init_point() || // getstatic is an initialization point so treat it as a wide kill 167 x->field()->is_volatile()) { // the JMM requires this 168 kill_memory(); 169 } 170 } 171 void do_ArrayLength (ArrayLength* x) { /* nothing to do */ } 172 void do_LoadIndexed (LoadIndexed* x) { /* nothing to do */ } 173 void do_NegateOp (NegateOp* x) { /* nothing to do */ } 174 void do_ArithmeticOp (ArithmeticOp* x) { /* nothing to do */ } 175 void do_ShiftOp (ShiftOp* x) { /* nothing to do */ } 176 void do_LogicOp (LogicOp* x) { /* nothing to do */ } 177 void do_CompareOp (CompareOp* x) { /* nothing to do */ } 178 void do_IfOp (IfOp* x) { /* nothing to do */ } 179 void do_Convert (Convert* x) { /* nothing to do */ } 180 void do_NullCheck (NullCheck* x) { /* nothing to do */ } 181 void do_TypeCast (TypeCast* x) { /* nothing to do */ } 182 void do_NewInstance (NewInstance* x) { /* nothing to do */ } 183 void do_NewTypeArray (NewTypeArray* x) { /* nothing to do */ } 184 void do_NewObjectArray (NewObjectArray* x) { /* nothing to do */ } 185 void do_NewMultiArray (NewMultiArray* x) { /* nothing to do */ } 186 void do_CheckCast (CheckCast* x) { /* nothing to do */ } 187 void do_InstanceOf (InstanceOf* x) { /* nothing to do */ } 188 void do_BlockBegin (BlockBegin* x) { /* nothing to do */ } 189 void do_Goto (Goto* x) { /* nothing to do */ } 190 void do_If (If* x) { /* nothing to do */ } 191 void do_IfInstanceOf (IfInstanceOf* x) { /* nothing to do */ } 192 void do_TableSwitch (TableSwitch* x) { /* nothing to do */ } 193 void do_LookupSwitch (LookupSwitch* x) { /* nothing to do */ } 194 void do_Return (Return* x) { /* nothing to do */ } 195 void do_Throw (Throw* x) { /* nothing to do */ } 196 void do_Base (Base* x) { /* nothing to do */ } 197 void do_OsrEntry (OsrEntry* x) { /* nothing to do */ } 198 void do_ExceptionObject(ExceptionObject* x) { /* nothing to do */ } 199 void do_RoundFP (RoundFP* x) { /* nothing to do */ } 200 void do_UnsafeGetRaw (UnsafeGetRaw* x) { /* nothing to do */ } 201 void do_UnsafeGetObject(UnsafeGetObject* x) { /* nothing to do */ } 202 void do_ProfileCall (ProfileCall* x) { /* nothing to do */ } 203 void do_ProfileReturnType (ProfileReturnType* x) { /* nothing to do */ } 204 void do_ProfileInvoke (ProfileInvoke* x) { /* nothing to do */ }; 205 void do_RuntimeCall (RuntimeCall* x) { /* nothing to do */ }; 206 void do_MemBar (MemBar* x) { /* nothing to do */ }; 207 void do_RangeCheckPredicate(RangeCheckPredicate* x) { /* nothing to do */ }; 208 #ifdef ASSERT 209 void do_Assert (Assert* x) { /* nothing to do */ }; 210 #endif 211 }; 212 213 214 class ValueNumberingEffects: public ValueNumberingVisitor { 215 private: 216 ValueMap* _map; 217 218 public: 219 // implementation for abstract methods of ValueNumberingVisitor 220 void kill_memory() { _map->kill_memory(); } 221 void kill_field(ciField* field, bool all_offsets) { _map->kill_field(field, all_offsets); } | 140 141 // visitor functions 142 void do_StoreField (StoreField* x) { 143 if (x->is_init_point() || // putstatic is an initialization point so treat it as a wide kill 144 // This is actually too strict and the JMM doesn't require 145 // this in all cases (e.g. load a; volatile store b; load a) 146 // but possible future optimizations might require this. 147 x->field()->is_volatile()) { 148 kill_memory(); 149 } else { 150 kill_field(x->field(), x->needs_patching()); 151 } 152 } 153 void do_StoreIndexed (StoreIndexed* x) { kill_array(x->type()); } 154 void do_MonitorEnter (MonitorEnter* x) { kill_memory(); } 155 void do_MonitorExit (MonitorExit* x) { kill_memory(); } 156 void do_Invoke (Invoke* x) { kill_memory(); } 157 void do_UnsafePutRaw (UnsafePutRaw* x) { kill_memory(); } 158 void do_UnsafePutObject(UnsafePutObject* x) { kill_memory(); } 159 void do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x) { kill_memory(); } 160 void do_UnsafeGetRaw (UnsafeGetRaw* x) { /* nothing to do */ } 161 void do_UnsafeGetObject(UnsafeGetObject* x) { 162 if (x->is_volatile()) { // the JMM requires this 163 kill_memory(); 164 } 165 } 166 void do_Intrinsic (Intrinsic* x) { if (!x->preserves_state()) kill_memory(); } 167 168 void do_Phi (Phi* x) { /* nothing to do */ } 169 void do_Local (Local* x) { /* nothing to do */ } 170 void do_Constant (Constant* x) { /* nothing to do */ } 171 void do_LoadField (LoadField* x) { 172 if (x->is_init_point() || // getstatic is an initialization point so treat it as a wide kill 173 x->field()->is_volatile()) { // the JMM requires this 174 kill_memory(); 175 } 176 } 177 void do_ArrayLength (ArrayLength* x) { /* nothing to do */ } 178 void do_LoadIndexed (LoadIndexed* x) { /* nothing to do */ } 179 void do_NegateOp (NegateOp* x) { /* nothing to do */ } 180 void do_ArithmeticOp (ArithmeticOp* x) { /* nothing to do */ } 181 void do_ShiftOp (ShiftOp* x) { /* nothing to do */ } 182 void do_LogicOp (LogicOp* x) { /* nothing to do */ } 183 void do_CompareOp (CompareOp* x) { /* nothing to do */ } 184 void do_IfOp (IfOp* x) { /* nothing to do */ } 185 void do_Convert (Convert* x) { /* nothing to do */ } 186 void do_NullCheck (NullCheck* x) { /* nothing to do */ } 187 void do_TypeCast (TypeCast* x) { /* nothing to do */ } 188 void do_NewInstance (NewInstance* x) { /* nothing to do */ } 189 void do_NewTypeArray (NewTypeArray* x) { /* nothing to do */ } 190 void do_NewObjectArray (NewObjectArray* x) { /* nothing to do */ } 191 void do_NewMultiArray (NewMultiArray* x) { /* nothing to do */ } 192 void do_CheckCast (CheckCast* x) { /* nothing to do */ } 193 void do_InstanceOf (InstanceOf* x) { /* nothing to do */ } 194 void do_BlockBegin (BlockBegin* x) { /* nothing to do */ } 195 void do_Goto (Goto* x) { /* nothing to do */ } 196 void do_If (If* x) { /* nothing to do */ } 197 void do_IfInstanceOf (IfInstanceOf* x) { /* nothing to do */ } 198 void do_TableSwitch (TableSwitch* x) { /* nothing to do */ } 199 void do_LookupSwitch (LookupSwitch* x) { /* nothing to do */ } 200 void do_Return (Return* x) { /* nothing to do */ } 201 void do_Throw (Throw* x) { /* nothing to do */ } 202 void do_Base (Base* x) { /* nothing to do */ } 203 void do_OsrEntry (OsrEntry* x) { /* nothing to do */ } 204 void do_ExceptionObject(ExceptionObject* x) { /* nothing to do */ } 205 void do_RoundFP (RoundFP* x) { /* nothing to do */ } 206 void do_ProfileCall (ProfileCall* x) { /* nothing to do */ } 207 void do_ProfileReturnType (ProfileReturnType* x) { /* nothing to do */ } 208 void do_ProfileInvoke (ProfileInvoke* x) { /* nothing to do */ }; 209 void do_RuntimeCall (RuntimeCall* x) { /* nothing to do */ }; 210 void do_MemBar (MemBar* x) { /* nothing to do */ }; 211 void do_RangeCheckPredicate(RangeCheckPredicate* x) { /* nothing to do */ }; 212 #ifdef ASSERT 213 void do_Assert (Assert* x) { /* nothing to do */ }; 214 #endif 215 }; 216 217 218 class ValueNumberingEffects: public ValueNumberingVisitor { 219 private: 220 ValueMap* _map; 221 222 public: 223 // implementation for abstract methods of ValueNumberingVisitor 224 void kill_memory() { _map->kill_memory(); } 225 void kill_field(ciField* field, bool all_offsets) { _map->kill_field(field, all_offsets); } |