[Bug tree-optimization/56099] Empty static noinline functions aren't called from optimized code

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56099

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
          Component|c                           |tree-optimization
         Resolution|                            |INVALID

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-01-24 18:45:19 UTC ---
You want:
__attribute__((noinline, noclone))
static int func_ni() {
  asm("");
  return 1;
}

---- CUT ----
So the function is not considered pure/const and does not get cloned either.