Reproducable crash

[Alexander Strange]

On Jan 23, 11:32 pm, Adrian Thurston <thurs... at cs.queensu.ca> wrote:
> The second argument (destState) of mergeStatesLeaving should never be
> null. Somehow a null value has gotten into the final state set of the
> machine starOp is applied to.
>
> If you're willing to give me an account on your machine I can try to
> track it down remotely.
>
> Adrian

I'm on a laptop behind a NAT, so no exporting shells for me. I did a
bit of poking but didn't get anywhere, will do some more later.

It doesn't break in FreeBSD, and valgrind reports nothing funny there
aside from a bit of memory leaked.
(http://astrange.ithinksw.net/valgrind.txt)

> Alexander Strange wrote:
> > #2  0x00020796 in FsmAp::mergeStatesLeaving (this=0x60a8c0,
> > md=@0xbfffeda4, destState=0x0, srcState=0x610af0) at fsmgraph.cpp:1178
> > #3  0x00021b7c in FsmAp::starOp (this=0x60a8c0) at fsmgraph.cpp:228