[Bug tree-optimization/49911] vrp2 + -fstrict-enums incorrectly remove predicate

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49911

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-31 09:56:41 UTC ---
Smells like the latent issue that we treat all integral types with the same
precision as equal but VRP extracts more fine-grained information.  Eric was
opposed to a patch that fixes that.  In the past copyrename exposed this
issue for example, but I guess inlining may do the same.

But I can't reproduce this on x86_64-darwin with rev. 176967.