[Bug bootstrap/69709] [6 Regression] profiled bootstrap error on s390x-linux-gnu with r233194

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69709

--- Comment #12 from Richard Henderson <rth at gcc dot gnu.org> ---
Created attachment 37799
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37799&action=edit
example patch

Or, for the purposes of combine, better like so.
This avoids creating a third (move) insn, which
will foil the 3->2 insn combination.