The following patch series adds some patterns for enhanced use of
the r[ixo]sbg instructions on S/390.
- 0001-* fixes some test regressions with the existing risbg
patterns that are broken because of recent trunkt changes.
- 0002-* adds new patterns for the r[xo]sbg instructions and an
SI mode variant of "extzv".
For details, please chech the commit comments of the patches. All
patches have been bootstrapped on s390x biarch and regression
tested on s390x biarch and s390.
Dominik ^_^ ^_^