[Bug rtl-optimization/80474] ipa-cp wrongly adding LO(symbol) twice

[jan.smets at nokia dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80474

--- Comment #5 from Jan Smets <jan.smets at nokia dot com> ---
We get 'good' code on 7.1/trunk since 

2016-04-29  Patrick Palka  <ppa...@gcc.gnu.org>  
tree-ssa-threadedge.c (simplify_control_stmt_condition): Split out into ...
                simplify_control_stmt_condition_1): ... here.  Recurse into
BIT_AND_EXPRs and BIT_IOR_EXPRs.

but that just makes it latent.