src/cpu/sparc/vm/c1_Runtime1_sparc.cpp

rev 10742 : Make fields used in lock-free algorithms volatile

*** 916,936 ****
  
          Register addr = G4;
          Register cardtable = G5;
          Register tmp  = G1_scratch;
          Register tmp2 = G3_scratch;
!         jbyte* byte_map_base = barrier_set_cast<CardTableModRefBS>(bs)->byte_map_base;
  
          Label not_already_dirty, restart, refill, young_card;
  
  #ifdef _LP64
          __ srlx(addr, CardTableModRefBS::card_shift, addr);
  #else
          __ srl(addr, CardTableModRefBS::card_shift, addr);
  #endif
  
!         AddressLiteral rs(byte_map_base);
          __ set(rs, cardtable);         // cardtable := <card table base>
          __ ldub(addr, cardtable, tmp); // tmp := [addr + cardtable]
  
          __ cmp_and_br_short(tmp, G1SATBCardTableModRefBS::g1_young_card_val(), Assembler::equal, Assembler::pt, young_card);
  
--- 916,936 ----
  
          Register addr = G4;
          Register cardtable = G5;
          Register tmp  = G1_scratch;
          Register tmp2 = G3_scratch;
!         volatile jbyte* byte_map_base = barrier_set_cast<CardTableModRefBS>(bs)->byte_map_base;
  
          Label not_already_dirty, restart, refill, young_card;
  
  #ifdef _LP64
          __ srlx(addr, CardTableModRefBS::card_shift, addr);
  #else
          __ srl(addr, CardTableModRefBS::card_shift, addr);
  #endif
  
!         AddressLiteral rs((address)byte_map_base);
          __ set(rs, cardtable);         // cardtable := <card table base>
          __ ldub(addr, cardtable, tmp); // tmp := [addr + cardtable]
  
          __ cmp_and_br_short(tmp, G1SATBCardTableModRefBS::g1_young_card_val(), Assembler::equal, Assembler::pt, young_card);