Re: [PATCH][PR tree-optimization/67892] Use FSM threader to handle backedges

[Jeff Law]

On 10/30/2015 07:57 AM, Andreas Schwab wrote:
I'm getting this regression on m68k:
FAIL: gcc.dg/tree-ssa/ssa-thread-11.c scan-tree-dump vrp2 "FSM"

The generated code looks equivalent, though.
This looks to be an issue with logicals & short-circuiting..  I wouldn't 
be surprised if we end up with an exclude list that mirrors what we see 
in various ifcombine tests.

I'm going to spin up the usual suspect crosses and see what they look like.

Jeff