653   Bitmask chngToIN;         /* Tables that might satisfy case 1 */  in exprAnalyzeOrTerm()
654   Bitmask indexable;        /* Tables that are indexable, satisfying case 2 */  in exprAnalyzeOrTerm()
677   indexable = ~(Bitmask)0;  in exprAnalyzeOrTerm()
678   chngToIN = ~(Bitmask)0;  in exprAnalyzeOrTerm()
689         Bitmask b = 0;  in exprAnalyzeOrTerm()
716       Bitmask b;  in exprAnalyzeOrTerm()
936 static Bitmask exprSelectUsage(WhereMaskSet *pMaskSet, Select *pS){  in exprSelectUsage()
937   Bitmask mask = 0;  in exprSelectUsage()
977   Bitmask mPrereq,       /* Bitmask of FROM clause terms referenced by pExpr */  in exprMightBeIndexed2()
1002   Bitmask mPrereq,       /* Bitmask of FROM clause terms referenced by pExpr */  in exprMightBeIndexed()
1057   Bitmask prereqLeft;              /* Prerequesites of the pExpr->pLeft */  in exprAnalyze()
1058   Bitmask prereqAll;               /* Prerequesites of pExpr */  in exprAnalyze()
1059   Bitmask extraRight = 0;          /* Extra dependencies on LEFT JOIN */  in exprAnalyze()
1112     Bitmask x = sqlite3WhereGetMask(pMaskSet, pExpr->w.iJoin);  in exprAnalyze()
1467       Bitmask prereqColumn, prereqExpr;  in exprAnalyze()
1733 static SQLITE_NOINLINE Bitmask sqlite3WhereExprUsageFull(  in sqlite3WhereExprUsageFull()
1737   Bitmask mask;  in sqlite3WhereExprUsageFull()
1759 Bitmask sqlite3WhereExprUsageNN(WhereMaskSet *pMaskSet, Expr *p){  in sqlite3WhereExprUsageNN()
1768 Bitmask sqlite3WhereExprUsage(WhereMaskSet *pMaskSet, Expr *p){  in sqlite3WhereExprUsage()
1771 Bitmask sqlite3WhereExprListUsage(WhereMaskSet *pMaskSet, ExprList *pList){  in sqlite3WhereExprListUsage()
1773   Bitmask mask = 0;  in sqlite3WhereExprListUsage()