[PATCH 1/2][AArch64] Implement AAPCS64 updates for alignment attribute

[James Greenhalgh]

On Tue, Jun 07, 2016 at 12:07:03PM +0100, James Greenhalgh wrote:
> On Fri, Jan 22, 2016 at 05:16:00PM +0000, Alan Lawrence wrote:
> > 
> > On 21/01/16 17:23, Alan Lawrence wrote:
> > > On 18/01/16 17:10, Eric Botcazou wrote:
> > >>
> > >> Could you post the list of files that differ?  How do they differ exactly?
> > >
> > > Hmmm. Well, I definitely had this failing to bootstrap once. I repeated that, to
> > > try to identify exactly what the differences were....and it succeeded even with
> > > my pre-AAPCS64-update host compiler. So, this is probably a false alarm; I'm
> > > bootstrapping again, after a rebase, to make sure...
> > >
> > > --Alan
> > 
> > Ok, rebased onto a more recent build, and bootstrapping with Ada posed no
> > problems. Sorry for the noise.
> > 
> > However, I had to drop the assert that TYPE_FIELDS was non-null because of some
> > C++ testcases.
> > 
> > Is this version OK for trunk?
> 
> Now that we're in GCC7, this version of the patch is OK for trunk.
> 
> From my reading of Richard's AAPCS update, this patch implements the
> rules as required.
> 
> I'll give this a day for any last minute comments from Richard/Marcus,
> then commit this on your behalf tomorrow.

I've now committed this on Alan's behalf as revisions r237224 (this patch)
and r237225 (the tests) respectively.

Thanks,
James