[Bug tree-optimization/68599] [6 Regression] gcc.dg/tree-ssa/pr45122.c and tree-vrp.c

[law at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68599

--- Comment #3 from Jeffrey A. Law <law at redhat dot com> ---
Yea, this is a latent issue in the RTL loop optimizer.  Essentially
-funsafe-loop-optimizations is getting too aggressive.  We've essentially got
the same situation in RTL-land as we had in tree land for pr45122.

I'm looking at a similar solution, namely limiting aggressiveness when the loop
has multiple exits.