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The previous nir_load_system_value(b, nir_intrinsic_load_whatever), 0) was
rather verbose, when system values should be easy to generate.
The index is left out because only one system value had an index included
in it.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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The old method pushed data for each channels uvec3 data of
gl_LocalInvocationID.
The new method pushes 1 dword of data that is a 'thread local ID'
value. Based on that value, we can generate gl_LocalInvocationIndex
and gl_LocalInvocationID with some calculations.
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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We add a lowering pass for nir intrinsics. This pass can replace nir
intrinsics with driver specific nir lower code.
We lower the gl_LocalInvocationIndex intrinsic based on a uniform
which is loaded with a thread specific ID.
We also lower the gl_LocalInvocationID based on
gl_LocalInvocationIndex.
v2:
* Create variable during lowering pass. (Ken)
v3:
* Don't create a variable, but instead just insert an intrisic call
to load a uniform from the allocated location. (Jason)
v4:
* Don't run this pass if thread_local_id_index < 0
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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