[Bug target/12306] GOT pointer (r12) reloaded unnecessarily

[kkojima at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12306

--- Comment #7 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
Even a static pic function can be called from non-pic functions
via function pointer.  Functions with hidden visibility in static
libraries can be compiled with -fPIC.  A typical example is libgcc.a.
Something based on WPA may be possible, though in general, it would
be not easy to assure a pic function can never be called from any
non-pic functions.  An explicit attribute or a flag which assures
that will work, though might be not so attractive.