[PATCH] Don't bypass blocks with multiple latch edges (PR middle-end/54838)

[Eric Botcazou]

> Like this?  Regtested/bootstrapped on x86_64-linux, ok for trunk?
> 
> 2012-12-01  Marek Polacek  <polacek@redhat.com>
> 
> 	PR middle-end/54838
> 	* cprop.c (bypass_block): Determine number of latches.  Return
> 	when there is more than one latch edge.
> 
> 	* gcc.dg/pr54838.c: New test.

That's fine, thanks for your patience.

-- 
Eric Botcazou