OP_IsNull        64825 sqlite3/libsqlite/sqlite3.c case OP_IsNull: {            /* same as TK_ISNULL, jump, in1 */
OP_IsNull        72498 sqlite3/libsqlite/sqlite3.c     sqlite3VdbeAddOp2(v, OP_IsNull, iReg, iDest);
OP_IsNull        73053 sqlite3/libsqlite/sqlite3.c     sqlite3VdbeAddOp2(v, OP_IsNull, r1, destIfNull);
OP_IsNull        73727 sqlite3/libsqlite/sqlite3.c       assert( TK_ISNULL==OP_IsNull );
OP_IsNull        74462 sqlite3/libsqlite/sqlite3.c       assert( TK_ISNULL==OP_IsNull );
OP_IsNull        74541 sqlite3/libsqlite/sqlite3.c   assert( pExpr->op!=TK_NOTNULL || op==OP_IsNull );
OP_IsNull        84155 sqlite3/libsqlite/sqlite3.c     sqlite3VdbeAddOp2(v, OP_IsNull, iReg, iOk);
OP_IsNull        85930 sqlite3/libsqlite/sqlite3.c           sqlite3VdbeAddOp2(v, OP_IsNull, regRowid, j1+2);
OP_IsNull        86216 sqlite3/libsqlite/sqlite3.c         sqlite3VdbeAddOp2(v, OP_IsNull, regData+i, ignoreDest);
OP_IsNull        89220 sqlite3/libsqlite/sqlite3.c       addr = sqlite3VdbeAddOp1(v, OP_IsNull, 2);
OP_IsNull        101640 sqlite3/libsqlite/sqlite3.c       sqlite3VdbeAddOp1(v, OP_IsNull, iReg);
OP_IsNull        102330 sqlite3/libsqlite/sqlite3.c       sqlite3VdbeAddOp2(v, OP_IsNull, r1, addrCont);