954   ArenaBitVector* vregs_to_check = temp_.nce.work_vregs_to_check;  in EliminateNullChecks()  local
959     vregs_to_check->ClearAllBits();  in EliminateNullChecks()
963       vregs_to_check->SetBit(in_reg);  in EliminateNullChecks()
968       vregs_to_check->ClearBit(this_reg);  in EliminateNullChecks()
984         if (!copied_first || !vregs_to_check->IsBitSet(pred_bb->last_mir_insn->dalvikInsn.vA)) {  in EliminateNullChecks()
991         vregs_to_check->Copy(temp_.nce.ending_vregs_to_check_matrix[pred_id]);  in EliminateNullChecks()
993         vregs_to_check->Union(temp_.nce.ending_vregs_to_check_matrix[pred_id]);  in EliminateNullChecks()
996         vregs_to_check->ClearBit(null_check_insn->dalvikInsn.vA);  in EliminateNullChecks()
1027       if (!vregs_to_check->IsBitSet(src_vreg)) {  in EliminateNullChecks()
1034         vregs_to_check->ClearBit(src_vreg);  in EliminateNullChecks()
1050       vregs_to_check->SetBit(mir->dalvikInsn.vA);  in EliminateNullChecks()
1057       vregs_to_check->ClearBit(mir->dalvikInsn.vA);  in EliminateNullChecks()
1072         vregs_to_check->ClearBit(next_mir->dalvikInsn.vA);  in EliminateNullChecks()
1079       if (vregs_to_check->IsBitSet(mir->dalvikInsn.vB)) {  in EliminateNullChecks()
1080         vregs_to_check->SetBit(mir->dalvikInsn.vA);  in EliminateNullChecks()
1082         vregs_to_check->ClearBit(mir->dalvikInsn.vA);  in EliminateNullChecks()
1092     nce_changed = vregs_to_check->GetHighestBitSet() != -1;  in EliminateNullChecks()
1093     temp_.nce.ending_vregs_to_check_matrix[bb->id] = vregs_to_check;  in EliminateNullChecks()
1097   } else if (!vregs_to_check->SameBitsSet(old_ending_ssa_regs_to_check)) {  in EliminateNullChecks()
1099     temp_.nce.ending_vregs_to_check_matrix[bb->id] = vregs_to_check;  in EliminateNullChecks()