Interprocedural optimization question

[Ramon Bertran Monfort <rbertran at ac dot upc dot edu>]

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?
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.


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Ramon Bertran Monfort                 Departament d'Arquitectura de Computadors
Telefon (+34) 93 4054033/54055             Universitat Politecnica de Catalunya
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