https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64081
--- Comment #55 from Jeffrey A. Law <law at redhat dot com> --- And presumably other calls to get_simple_loop_desc need the more permissive definition to re-enable loop unrolling. Ugh. I think at the least we're going to have to look at each caller of get_simple_loop_desc and decide if that use is safe with the more permissive definition. Hopefully the important one for loop unrolling is safe and we can then look at how to untangle things a bit. Perhaps with a boolean indicating if the strict or permissive definition is needed, or perhaps by storing into the returned descriptor which definition was used, then the callers decide what to do with that information, or something along those lines.
