[Mesa-dev] [PATCH 1/8] nir: Add lowering for bitfieldInsert without using bfi.

[Ian Romanick]

On 05/31/2018 10:48 AM, Eric Anholt wrote:
> Ian Romanick <idr at freedesktop.org> writes:
> 
>> On 05/31/2018 10:34 AM, Ian Romanick wrote:
>>> There are GLSL IR lowering passes for a lot (all?) of this that I added
>>> when I did GL_MESA_shader_integer_functions.  Is there a reason to not
>>> use those?
>>
>> Which I now see that you mentioned in the commit messages.  Still, just
>> curious...
> 
> Because this is easier than writing new gallium caps, more legible code,
> and I need it for Vulkan anyway.

That makes sense.  I didn't realize you had to add a new cap just to
enable a GLSL IR lowering pass.  That seems awfully heavyweight.


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