< prev index next >

src/share/vm/opto/lcm.cpp

Print this page




 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:




 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:


< prev index next >