https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61607
--- Comment #9 from Jeffrey A. Law <law at redhat dot com> --- So, the length of the SSA_NAME_VALUE chains is pretty much as expected. The overwhelming majority of the time there is nothing in the SSA_NAME_VALUE chain or a single entry. Then there's a very small percentage with a length of 2 and roughly the same very small percentage that have a loop. So we can reasonably iterate over the chain and break if we hit > 2 entries in the chain.
