Disallow 3-operand cmp[l][i] for ppc64

[Alan Modra]

On Thu, Sep 29, 2016 at 03:34:40PM -0500, Peter Bergner wrote:
> On 9/29/16 1:02 AM, Alan Modra wrote:
> > cmp[l][o] get an optional L field only when generating 32-bit code.
> > dcbf, tlbie and tlbiel keep their optional L field, ditto for R field
> > of tbegin.  cmprb, tsr., wlcr[all] and mtsle all change to a
> > compulsory L field.
> 
> FYI, I just committed the following as obvious to clean up the gdb
> testsuite fallout from this change.

Thanks!

-- 
Alan Modra
Australia Development Lab, IBM