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. Regards Graham --- On Thu, 3/9/09, bonzini at gnu dot org <gcc-bugzi...@gcc.gnu.org> wrote: > From: bonzini at gnu dot org <gcc-bugzi...@gcc.gnu.org> > Subject: [Bug target/41246] should "sorry" when regparm=3 and nested > functions are encountered > To: gcc-bugs@gcc.gnu.org > Date: Thursday, 3 September, 2009, 6:11 PM > > > ------- Comment #5 from bonzini at gnu dot org > 2009-09-03 17:11 ------- > Yes, if you use nested functions you can just use > -mregparm=2 globally, that's > a much better solution. > > > -- > > bonzini at gnu dot org changed: > > What > |Removed > |Added > ---------------------------------------------------------------------------- > > Status|UNCONFIRMED > |NEW > Ever Confirmed|0 > > |1 > Last reconfirmed|0000-00-00 > 00:00:00 |2009-09-03 > 17:11:30 > > date| > > | > Summary|%ecx > corruption when |should "sorry" > when > > |combining -regparm=3 > with |regparm=3 and nested > > |nested functions > |functions are encountered > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41246 > >
