[ This ought to be exactly the patch you bootstrapped. It does
not include the SEQ follow-up. ]
Split out s390_two_part_insv from s390_expand_cs_hqi to try
harder to use bit insertion instructions in the CAS loop.
Reorg s390_expand_insv to aid that. Try RISBG last, after other
mechanisms have
Richard Henderson wrote:
> [ This ought to be exactly the patch you bootstrapped. It does
> not include the SEQ follow-up. ]
>
> Split out s390_two_part_insv from s390_expand_cs_hqi to try
> harder to use bit insertion instructions in the CAS loop.
>
> Reorg s390_expand_insv to aid that. Try