152
153 // Search the successor block for a load or store who's base value is also
154 // the tested value. There may be several.
155 Node_List *out = new Node_List(Thread::current()->resource_area());
156 MachNode *best = NULL; // Best found so far
157 for (DUIterator i = val->outs(); val->has_out(i); i++) {
158 Node *m = val->out(i);
159 if( !m->is_Mach() ) continue;
160 MachNode *mach = m->as_Mach();
161 was_store = false;
162 int iop = mach->ideal_Opcode();
163 switch( iop ) {
164 case Op_LoadB:
165 case Op_LoadUB:
166 case Op_LoadUS:
167 case Op_LoadD:
168 case Op_LoadF:
169 case Op_LoadI:
170 case Op_LoadL:
171 case Op_LoadP:
172 case Op_LoadN:
173 case Op_LoadS:
174 case Op_LoadKlass:
175 case Op_LoadNKlass:
176 case Op_LoadRange:
177 case Op_LoadD_unaligned:
178 case Op_LoadL_unaligned:
179 assert(mach->in(2) == val, "should be address");
180 break;
181 case Op_StoreB:
182 case Op_StoreC:
183 case Op_StoreCM:
184 case Op_StoreD:
185 case Op_StoreF:
186 case Op_StoreI:
187 case Op_StoreL:
188 case Op_StoreP:
189 case Op_StoreN:
190 case Op_StoreNKlass:
191 was_store = true; // Memory op is a store op
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152
153 // Search the successor block for a load or store who's base value is also
154 // the tested value. There may be several.
155 Node_List *out = new Node_List(Thread::current()->resource_area());
156 MachNode *best = NULL; // Best found so far
157 for (DUIterator i = val->outs(); val->has_out(i); i++) {
158 Node *m = val->out(i);
159 if( !m->is_Mach() ) continue;
160 MachNode *mach = m->as_Mach();
161 was_store = false;
162 int iop = mach->ideal_Opcode();
163 switch( iop ) {
164 case Op_LoadB:
165 case Op_LoadUB:
166 case Op_LoadUS:
167 case Op_LoadD:
168 case Op_LoadF:
169 case Op_LoadI:
170 case Op_LoadL:
171 case Op_LoadP:
172 case Op_LoadBarrierSlowReg:
173 case Op_LoadBarrierWeakSlowReg:
174 case Op_LoadN:
175 case Op_LoadS:
176 case Op_LoadKlass:
177 case Op_LoadNKlass:
178 case Op_LoadRange:
179 case Op_LoadD_unaligned:
180 case Op_LoadL_unaligned:
181 assert(mach->in(2) == val, "should be address");
182 break;
183 case Op_StoreB:
184 case Op_StoreC:
185 case Op_StoreCM:
186 case Op_StoreD:
187 case Op_StoreF:
188 case Op_StoreI:
189 case Op_StoreL:
190 case Op_StoreP:
191 case Op_StoreN:
192 case Op_StoreNKlass:
193 was_store = true; // Memory op is a store op
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