[cfg-branch] STC - bug fix

[Jan Hubicka]

> Hi,
> 
> this patch fixes bug in computing the iterations of the loop.
> It also adds "can_fallthru" to debug output when dumping flow info.
> 
> Bootstrapped on i686.
> 
> 
> 2002-01-14  Josef Zlomek  <zlomek@matfyz.cz>
> 
> 	cfg.c (dump_edge_info): added dumping of EDGE_CAN_FALLTHRU.
> 	bb-reorder.c (find_traces_1_round): fixed bug in computing the
> 	iterations of the loop.

Installed, thanks

Honza