[Mesa-dev] No luck with tstellar/llvm on HD4890

[Vincent Lejeune]

Hi,

Do you use the master branch ?
This commit generates some llvm.R600.store.pixel.color/stencil/depth intrinsics, which were introduced by this commit : 
http://cgit.freedesktop.org/~tstellar/llvm/commit/?id=761b5e4d7d62f7dc7ac5561f355a1eb0d7dd766e

I think the "unreachable" error means that llvm does not recognise the intrinsic ; if llvm recognised the intrinsic but didn't know
how to lower it, there would be a "cannot select" error message.

Vincent





----- Mail original -----
> De : Mathias Fröhlich <Mathias.Froehlich at gmx.net>
> À : mesa-dev at lists.freedesktop.org
> Cc : 
> Envoyé le : Mardi 6 novembre 2012 19h55
> Objet : Re: [Mesa-dev] No luck with tstellar/llvm on HD4890
> 
> 
> Hi,
> 
> On Monday, November 05, 2012 20:38:24 Tom Stellard wrote:
>>  I think you will have better luck narrowing down the issue if you bisect
>>  Mesa, rather than LLVM.
> 
> I see something that looks for the first cut at least quiet similar.
> 
> Reverting
> 
> commit 84b437213294ff4e1a3bcae2f9cbb36a9b4955c4
> Author: Vincent Lejeune <vljn at ovi.com>
> Date:   Sat Sep 29 16:49:13 2012 +0200
> 
>     r600g: make tgsi-to-llvm generates store.pixel* intrinsic for fs
>     
>     Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
> 
> helps here. No clue about the real reason.
> 
> For reference rv635, tom's llvm from yesterday and libdrm-2.4.40.
> 
> Mathias
> _______________________________________________
> mesa-dev mailing list
> mesa-dev at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
>