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.
Definitely an artifact of differences in branch costing.  Pondering the 
best way to fix.
jeff