Another switch testcase failure with enable-checking

[Jan Hubicka]

> All,
> 
> I've stumbled on another interesting switch testcase which triggers an 
> enable-checking abort
> on all the ports I've tried so far x86, mips, sh, s390.
> 
> For this testcase I get at -O2 with enable-checking enabled
> 
> bug2.c: In function `foo':
> bug2.c:28: warning: verify_flow_info: Wrong probability of edge 1->19 10008
> bug2.c:28: internal compiler error: verify_flow_info failed
> 
> Jan any ideas what's wrong with the edge probability calcs

This is commonly just some roundoff error around.  I will track it down
tomorrow.

Honza