115072   int addrIsNull;  local
115085     addrIsNull = sqlite3VdbeAddOp1(v, OP_IsNull, r2);
115090     addrIsNull = 0;
115093   if( addrIsNull==0 ){
115102       addrIsNull = sqlite3VdbeAddOp1(v, OP_IsNull, r1);
115110   return addrIsNull;
117820       int addrIsNull = 0;  local
117825           addrIsNull = exprComputeOperands(pParse, pExpr,
117845           if( addrIsNull ){
117847             sqlite3VdbeJumpHere(v, addrIsNull);
117871       int addrIsNull;  local
117882         addrIsNull = exprComputeOperands(pParse, pExpr,
117887         addrIsNull = 0;
117892       if( addrIsNull ){
117894         sqlite3VdbeJumpHere(v, addrIsNull);
118824       int addrIsNull;  local
118827         addrIsNull = exprComputeOperands(pParse, pExpr,
118832         addrIsNull = 0;
118848       if( addrIsNull ){
118850           sqlite3VdbeChangeP2(v, addrIsNull, dest);
118852           sqlite3VdbeJumpHere(v, addrIsNull);
119024       int addrIsNull;  local
119027         addrIsNull = exprComputeOperands(pParse, pExpr,
119032         addrIsNull = 0;
119048       if( addrIsNull ){
119050           sqlite3VdbeChangeP2(v, addrIsNull, dest);
119052           sqlite3VdbeJumpHere(v, addrIsNull);
124706       int addrIsNull;  local
124748       addrIsNull = sqlite3VdbeAddOp1(v, OP_IsNull, regSampleRowid);
124763       sqlite3VdbeJumpHere(v, addrIsNull);
178181       int addrIsNull = sqlite3VdbeAddOp1(v, OP_IsNull, regArg);  local
178194       sqlite3VdbeJumpHere(v, addrIsNull);