[Bug c++/61531] Optimizer completely removes some bitset code

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61531

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
It works for me.

> g++ t.C -O2
> ./a.out 
set 2

this is with

> rpm -q gcc43-c++
gcc43-c++-4.3.4_20091019-0.22.17
> rpm -q --changelog gcc43-c++ | head
* Thu Nov 10 2011 rguenther@suse.com
- Fix altivec comparison builtins.  [bnc#729378]