[Bug tree-optimization/47205] GCC emits optimized out noinline function

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47205

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-01-07 12:51:58 UTC ---
Hmm, at second tought I guess statement gets improperly updated for lack of
side effect in fixup_cfg.  Will look into it.

Even that is however not enough for function to be optimized away since we
don't re-do IPA after local optimization.  This would require even more
complicating the optimization queue. So it is hard to solve fully.