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

[Ramana Radhakrishnan]

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:
>>
>> http://gcc.gnu.org/ml/gcc-patches/2013-03/msg00994.html (trunk r197052)
>> http://gcc.gnu.org/ml/gcc-patches/2013-03/msg00874.html (trunk r197051)
>> http://gcc.gnu.org/ml/gcc-patches/2013-03/msg00873.html (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, 
http://gcc.gnu.org/ml/gcc-patches/2013-03/msg00652.html 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 
http://gcc.gnu.org/ml/gcc-patches/2013-03/msg00874.html) but I'd defer 
to the RM's on that one.

regards
Ramana