Re: [PATCH v2 3/4] libav.inc: duplicate armv7a over-rides for armv7ve

Andre McCurdy
2016-01-08T02:29:59Z

On Thu, Jan 7, 2016 at 3:40 PM, Phil Blundell <pb@pbcl.net> wrote:
> On Thu, 2016-01-07 at 14:29 -0800, Andre McCurdy wrote:
>> FULL_OPTIMIZATION_armv7a = "-fexpensive-optimizations -fomit-frame-pointer -O4 -ffast-math"
>> +FULL_OPTIMIZATION_armv7ve = "-fexpensive-optimizations -fomit-frame-pointer -O4 -ffast-math"
>
> I wonder if this would be better as just FULL_OPTIMIZATION_arm. That
> said, the OPTIMIZATION variables are primarily distro knobs and it's not
> entirely clear that individual packages ought to be overriding them at
> all.
>
> Does anybody know whether there is any actual science behind the use of
> those flags on armv7a specifically?

They go back to at least 2011, so whatever science there might have
been back then is likely invalid by now.

http://git.openembedded.org/meta-openembedded/commit/?id=61e4b696de080545e6ffe80d28a9c6ef8990695a

> p.
>
>