[Buildroot] [PATCH 0/4] llvm for mesa3d

[Will Wagner <will_wagner@carallon.com>]

On 16/02/2018 08:36, Valentin Korenblit wrote:
> Hello all,
> 
> This series provides LLVM support for Mesa3d, enabling
> llvmpipe software rasterizer.
> 
> It must be considered that it does not provide a full LLVM
> installation for the host, only the necessary components to
> cross-compile LLVM for the target. It will install all target
> components as libLLVM.so.

Hi Valentin,

As it happens I've just been updating my patches for llvm as I added it 
to get radeonsi gallium working in mesa3d. My patches are much messier 
than your and hence I've never tried to upstream anything.

A couple of overall questions:

Have you only added host-llvm because of llvm-tblgen and llvm-config? 
llvm will try to build native versions of those for you but I had 
problems with llvm-tblgen and so had to go to a host package like you. 
However I only built those two tools with:

HOST_LLVM_MAKE_OPTS = llvm-tblgen llvm-config

It makes the build smaller and faster and it means you don't need to 
care about almost all of the host conf options.


My other question is about AMDGPU support, you seem to have mixed this 
up into a number of your patches not just number 3. What are you trying 
to do here, add an option to build amdgpu as well as the target arch? In 
my case I wanted to be able to build for only amdgpu and not the target 
arch as this is what radeonsi needs.

Regards
Will

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Will Wagner                                     will_wagner at carallon.com
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