Re: [Qemu-devel] [PATCH 0/8] tcg/s390 improvements

[Cornelia Huck]

On Tue, 29 Aug 2017 13:47:51 -0700
Richard Henderson <address@hidden> wrote:

> This finally converts s390 to the tcg_target_op_def function, which
> allows constraints to vary at runtime.  Once we have that, we can
> 
> (1) Perform some facilities checks once during startup instead of
>     every time we evaluate the constraint,
> (2) Use the distinct-operands facility from z196.
> 
> In addition, two cleanups to the setcond expansion
> 
> (3) Use the load-on-condition-2 facility from z13,
> (4) Use a smaller expansion for LE/LEU using SLBGR.
> 
> I wrote these after soft freeze and before I changed jobs, so it has
> seen some testing.  Unfortunately, I no longer have access to s390
> hardware, so I'd appreciate it if someone could re-test this rebase.

FWIW, this passes my smoketests.

Looking at the patches now...