[Mesa-dev] [PATCH 00/13] i965/compiler: Use ISL for image_load_store format

[Emil Velikov]

On 16 April 2016 at 20:45, Jason Ekstrand <jason at jlekstrand.net> wrote:
> This little series switches our back-end compiler to use libisl for the
> surface format introspection it needs for doing image_load_store shader
> work-arounds.  Format introspection is the one place where thet back-end
> compilers still have a dependency on libmesa.
>
> Once this dependency is removed, we can stop linking the Vulkan driver
> against libmesa and cut the size of libvulkan_intel.so down to about 2 MB.
Nice one Jason. With vulkan landing in master I was about to ask you
guys about this (re: reusing isl getting rid of libmesa dependency).

The size savings sound quite nice. Although it seems that isl might
need a bit more for earlier generations and/or msaa.

Meanwhile I'll give src/intel, simplifying/folding things a bit.

> Unfortunately, we're not *quite* ready for that yet.  The way that the
> different core compiler libraries are split up, libnir has a dependency on
> GLSL because glsl_to_nir is in libnir.  It'll take a bit of whack-a-mole
> with makefiles and linking to really get to that point.
>
Strange I don't recall such issue. Can you share a build log ?
A while back I was able to build the "nine" target on freedreno
without a problem. It (used to) include the following:

       $(top_builddir)/src/gallium/auxiliary/libgallium.la \
       $(top_builddir)/src/gallium/state_trackers/nine/libninetracker.la \
       $(top_builddir)/src/compiler/nir/libnir.la \
       $(top_builddir)/src/compiler/libcompiler.la \
       $(top_builddir)/src/util/libmesautil.la \
       $(top_builddir)/src/gallium/winsys/freedreno/drm/libfreedrenodrm.la \
       $(top_builddir)/src/gallium/drivers/freedreno/libfreedreno.la \
      + a bunch of shared libraries


Thanks
Emil