https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44675
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|NEW |RESOLVED
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
You can't do the return slot optimization here.
As *p could be read inside foo after the return location inside foo is written
to.
Which means you always need a temporary for the return location of foo and then
you can't tail call this function because of that.
