[Bug regression/59320] ftree-vrp breaks simple loops

[astra at ionic dot at]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59320

--- Comment #6 from David Kaufmann <astra at ionic dot at> ---
(In reply to Richard Biener from comment #4)
> Please attach a testcase or at least preprocessed source of w_drawprim.c.
a testcase is the first attachment to this bug with either xfig version 3.2.5b
or 3.2.5c.
debian and fedora have currently version 3.2.5b in their repository.

i could reproduce the error in fedora-f18.x86_64 and fedora-f19.x86_64.

currently i do not have another system which has been updated recently and is
configured for compiling, maybe i'll find one in the next few days.

any input is welcome.