[Mesa-dev] radv: Support for control flow attributes (SPIR-V: Unroll, DontUnroll and maybe Flatten, DontFlatten)

[Bas Nieuwenhuizen]

We can look at passing it through to the optimizations. Do you have
any particular shaders where you are interested in the use of these?

On Sat, Apr 28, 2018 at 3:02 PM, Panagiotis Christopoulos Charitos
<godlike at ancient-ritual.com> wrote:
> Hi,
>
> SPIR-V supports a few control flow decorations. These decorations are
> exposed in glslang as well as part of GL_EXT_control_flow_attributes
> extension.
>
> AMDVLK's compiler supports those decorations and when used it may result in
> lower VGPR usage.
>
> On the other hand RADV seems to ignore them.
>
> Does it make sense to support them as well? Is yes,  are there any plans?
>
> PS: I've built mesa with LLVM 6.0.0
>
>
> Panagiotis Christopoulos Charitos
> www.ancient-ritual.com
> www.anki3d.org
>
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