Hi Richard,
(2) Insert:if (SUBREG_P (src)) src = SUBREG_REG (src); here. OK with those changes if that works. Let me know if they don't — I'll try to be quicker with the next review.
thank you, this looks good in a first testsuite run on s390. If you have time, would you mind looking at the other outstanding patches of this series as well? In case of further comments, which I am sure there will be, I could test them all at once afterwards.
Thanks again Robin