> The following swaps the loop splitting pass and the final value > replacement pass to avoid keeping the IV of the earlier loop > live when not necessary. The existing gcc.target/i386/pr87007-5.c > testcase shows that we otherwise fail to elide an empty loop > later. I don't see any good reason why loop splitting would need > final value replacement, all exit values honor the constraints > we place on loop header PHIs automatically. > > Bootstrap and regtest running on x86_64-unknown-linux-gnu, I plan > to install this if testing succeeds. Thanks! I was just looking into the same. This should let us to turn the split loop into non-loop for hmmer.
Honza
