------- Comment #4 from thomas at coware dot com 2009-08-06 19:25 ------- By the way, I see the same failure also with gcc 4.1.2 and 4.2 without any fno- options.
I thought it would be a good idea to hunt the problem down to a single optimization mechanism, which seems to be if-conversion. I guess on 4.3 and 4.4 some of the tree optimizations change the code in a way that the problem is not visible - but it is most likely there anyway and might be triggered by other test cases. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40987