[Bug tree-optimization/23286] missed fully redundant expression

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23286

--- Comment #33 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-07-29 20:11:29 UTC ---
(In reply to comment #26)
> Created attachment 19634 [details]
> updated patch
This patch fails on the trunk now with:
/data/src/gcc-cavium/gcc-4.6-upgrade/src/libstdc++-v3/src/strstream.cc: In
destructor ‘virtual std::strstream::~strstream()’:
/data/src/gcc-cavium/gcc-4.6-upgrade/src/libstdc++-v3/src/strstream.cc:399:3:
error: statement marked for throw in middle of block
# .MEM_23 = VDEF <.MEM_22>
std::strstreambuf::~strstreambuf (D.20970_7);