------- Comment #3 from dorit at il dot ibm dot com 2006-08-08 07:38 ------- > Err, SSA copy prop should be enough, actually, since after copy-prop, > the phi will have no users (and they shouldn't care about code with no > uses that doesn't access memory). > Though it's interesting that this redundant phi survives so long. What > is creating it?
I think it's loop-unswitch -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28643
