(In reply to comment #4)
> (In reply to comment #3)
> > (In reply to comment #2)
> > > I can't reproduce this with LLVM r179895 and Mesa
> > > 12eab7cc564a6928197f9b87ded9e368e56976f0
> > > 
> > > Have you done full rebuilds of both projects?
> > 
> > Yes, I always do make [dist]clean and git clean -dfx.
> > 
> > I have just deleted both trees and re-cloned to be sure, but the segfault is
> > still there.
> > 
> > When I was on my working commits moving either llvm or mesa to head while
> > keeping the other on "working" produced the segfault (which is why I didn't
> > do a proper bisect).
> > 
> > I always clean and rebuild mesa after llvm has changed.
> 
> I was able to reproduce this on my gentoo system, but not on either of my
> fedora systems.  I will investigate further, what distro are you using?

I use linux from scratch and can reproduce on an old 32bit build and a more
recent pure 64bit.