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Re: [PATCH][ARM] use vsel instruction for floating point conditional moves in ARMv8

On Thu, 4 Apr 2013, Ramana Radhakrishnan wrote:

> On 04/04/13 08:46, Richard Biener wrote:
> > On Wed, 3 Apr 2013, Matthew Gretton-Dann wrote:
> > 
> > > Would it be possible for this patch and the others Kyrylo has recently
> > > done
> > > for the new ARMv8 AArch32 instructions to be backported to 4.8?
> > > 
> > > In particular I'm refering to:
> > > 
> > > (trunk r197052)
> > > (trunk r197051)
> > > (trunk r197046)
> > 
> > Those seem to be new features and not regression fixes and thus are
> > not appropriate for a release branch.
> Not all of them really,
> is really a target bug
> fix which causes mild annoyance once a while. I do believe that Kyryll was
> looking at proposing a backport of this patch (and there is a bugzilla entry
> for this one.)
> I am sympathetic to the new atomics for v8-a and I've heard atleast one
> request for it privately (i.e. this one
> but I'd defer to the
> RM's on that one.

Please ask more specifically then.  Note that release managers generally
defer to target maintainers for architecture specific patches.  But we
of course expect them to follow the rule of fixing regressions
and wrong-code issues only.  Exceptions are always possible but
strongly discouraged by us for primary and secondary targets where
new regressions may block a release.


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