[Bug target/41246] should "sorry" when regparm=3 and nested functions are encountered

[pinskia at gcc dot gnu dot org]

------- Comment #12 from pinskia at gcc dot gnu dot org  2009-09-03 18:05 -------
(In reply to comment #11)
> Subject: Re:  should "sorry" when regparm=3 and nested functions are
> encountered
> 
> All,
> 
> nested functions get passed a hidden argumment akin to static link/display
> so that nested function can access the locals of its enclosing function.
> 
> Passing a nested function as parameter to another function isn't going 
> to work correctly when the function is eventually called the
> hidden argument isn't going to be setup correctly.
> 
> I think the code is thus invalid and GCC should reject it.

It is valid as GCC creates a trampoline for the function pointer ...


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41246