170 if( !m->is_Mach() ) continue;
171 MachNode *mach = m->as_Mach();
172 was_store = false;
173 int iop = mach->ideal_Opcode();
174 switch( iop ) {
175 case Op_LoadB:
176 case Op_LoadUB:
177 case Op_LoadUS:
178 case Op_LoadD:
179 case Op_LoadF:
180 case Op_LoadI:
181 case Op_LoadL:
182 case Op_LoadP:
183 case Op_LoadN:
184 case Op_LoadS:
185 case Op_LoadKlass:
186 case Op_LoadNKlass:
187 case Op_LoadRange:
188 case Op_LoadD_unaligned:
189 case Op_LoadL_unaligned:
190 assert(mach->in(2) == val, "should be address");
191 break;
192 case Op_StoreB:
193 case Op_StoreC:
194 case Op_StoreCM:
195 case Op_StoreD:
196 case Op_StoreF:
197 case Op_StoreI:
198 case Op_StoreL:
199 case Op_StoreP:
200 case Op_StoreN:
201 case Op_StoreNKlass:
202 was_store = true; // Memory op is a store op
203 // Stores will have their address in slot 2 (memory in slot 1).
204 // If the value being nul-checked is in another slot, it means we
205 // are storing the checked value, which does NOT check the value!
206 if( mach->in(2) != val ) continue;
207 break; // Found a memory op?
208 case Op_StrComp:
209 case Op_StrEquals:
210 case Op_StrIndexOf:
211 case Op_AryEq:
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170 if( !m->is_Mach() ) continue;
171 MachNode *mach = m->as_Mach();
172 was_store = false;
173 int iop = mach->ideal_Opcode();
174 switch( iop ) {
175 case Op_LoadB:
176 case Op_LoadUB:
177 case Op_LoadUS:
178 case Op_LoadD:
179 case Op_LoadF:
180 case Op_LoadI:
181 case Op_LoadL:
182 case Op_LoadP:
183 case Op_LoadN:
184 case Op_LoadS:
185 case Op_LoadKlass:
186 case Op_LoadNKlass:
187 case Op_LoadRange:
188 case Op_LoadD_unaligned:
189 case Op_LoadL_unaligned:
190 case Op_StoreB:
191 case Op_StoreC:
192 case Op_StoreCM:
193 case Op_StoreD:
194 case Op_StoreF:
195 case Op_StoreI:
196 case Op_StoreL:
197 case Op_StoreP:
198 case Op_StoreN:
199 case Op_StoreNKlass:
200 was_store = true; // Memory op is a store op
201 // Stores will have their address in slot 2 (memory in slot 1).
202 // If the value being nul-checked is in another slot, it means we
203 // are storing the checked value, which does NOT check the value!
204 if( mach->in(2) != val ) continue;
205 break; // Found a memory op?
206 case Op_StrComp:
207 case Op_StrEquals:
208 case Op_StrIndexOf:
209 case Op_AryEq:
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