Razya Ladelsky/Haifa/IBM wrote on 29/01/2007 13:46:33: > Hi, > > Does gcc apply inter-procedural optimizations across functions called using > a function pointer? I guess that gcc performs conservatively assuming that > the pointer could point everywhere because the pointer is a declared as a > global variable and could be changed in any place. Is it true?
Yes. The callgraph does not include these calls. > In this case, is there any pragma or directive to give a hint to the > compiler, giving the set of possible values of the pointer (which in my > case is known by the developer)? If not, this could be useful for > optimization purposes. > > thanks in advance, > > Salut! > > Ramon. > > > -- > ------------------------------------------------------------------------------- > Ramon Bertran Monfort Departament d'Arquitectura de > Computadors > Telefon (+34) 93 4054033/54055 Universitat Politecnica > de Catalunya > Fax (+34) 93 4017055 Despatx C6-103/C6-221-9 > Campus Nord > e-mail [EMAIL PROTECTED] C. Jordi Girona 1-3 - > 08034 Barcelona > ------------------------------------------------------------------------------- > > A hundred times every day, I remind myself that my inner and outer > life depends > on the labors of other men, living and dead, and that I must exert myself in > order to give in the measure as I have received and am still receiving. > > A. Einstein > > [attachment "atte7k4r.dat" deleted by Razya Ladelsky/Haifa/IBM]
