Am 27.08.2011 12:50, schrieb Michael Van Canneyt: > > > On Sat, 27 Aug 2011, Ludo Brands wrote: > >> In >> http://www.freepascal.org/docs-html/prog/progsu72.html#x78-770001.1.72 is >> written: >> >> ... >> the compiler will omit the generation of a stackframe if the following >> conditions are satisfied: >> >> The procedure has no parameters. >> ... >> >> This condition should read: The procedure has no parameters on the stack. >> Parameters passed in registers do not trigger stackframe generation. >> >> There are a lot of wrapper functions, with register only parameters, >> in the >> rtl and elsewhere that don't generate stack frames. > > If the compiler developers can confirm this, then I'll adapt the > documentation.
Find some generic text aiming on complexity or whatever :) The rules when it happens or not are pretty complex, they also depend on the target architecture. See e.g. psub.pas:953+ and all occurences of pi_needs_stackframe in the compiler _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
