Hi Tanya,
I guess the best place to do this would be in somewhere in LLVM - maybe
lowering.
Anyhow, your solution would work fine too.
Thanks
Guy
-----Original Message-----
From: Tanya Lattner [mailto:[email protected]]
Sent: Thursday, July 19, 2012 03:37
To: Benyei, Guy
Cc: [email protected]
Subject: Re: [cfe-commits] [PATCH] Optimize vec3 loads/stores
On Jul 18, 2012, at 5:08 AM, Benyei, Guy wrote:
> Hi Tanya,
> Looks good and usefull, but I'm not sure if it should be clang's decision if
> storing and loading vec4s is better than vec3.
The idea was to have Clang generate code that the optimizers would be more
likely to do something useful and smart with. I understand the concern, but I'm
not sure where the best place for this would be then?
> Anyhow, shouldn't the test check the store shuffle too?
>
Sure!
-Tanya
> Thanks
> Guy
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Tanya Lattner
> Sent: Wednesday, July 18, 2012 01:46
> To: [email protected]
> Subject: [cfe-commits] [PATCH] Optimize vec3 loads/stores
>
> This patch treats vectors of size 3 like size 4 when loading and store which
> in turn will cause more optimal code to be emitted by the backend. I've
> included a test case.
>
> Please review.
>
> Thanks,
> Tanya
>
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