[Bug tree-optimization/59999] [4.9 Regression] Sign extension in loop regression blocks generation of zero overhead loop

[pa...@matos-sorge.com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59999

--- Comment #2 from Paulo J. Matos <pa...@matos-sorge.com> ---
(In reply to Richard Biener from comment #1)
> I guess pure co-incidence

If I understand you correctly you think that the patch I mentioned is not the
culprit but simply triggered this to happen. It might be true indeed. The patch
was obtained with a simple bisect from the git repository using the v850 as
testing backend since the mep backend is much more recent so I couldn't really
test it.