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These weren't added before because they are actually calculated values that
are computed from other inputs. However, in order to handle them in
nir_lower_system_values, it's nice for them to have a cannonical locaiton.
Reviewed-by: Rob Clark <[email protected]>
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In Vulkan, you have InstanceIndex which begins at the base instance value
rather than the zero-based InstanceID of GL.
Reviewed-by: Rob Clark <[email protected]>
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Just noticed this in passing.. gl_shader_stage already has tess so this
comment no longer applies.
Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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Currently any access params (coherent/volatile/restrict) are being lost
when lowering to the ssbo load/store intrinsics. Keep track of the
variable being used, and bake its access params in as the last arg of
the load/store intrinsics.
If the variable is accessed via an instance block, then 'variable'
points to the instance block variable and not the field inside the
instance block that we are accessing. In order to check access
parameters for the field itself we need to detect this case and keep
track of the corresponding field struct so we can extract the specific
field access information from there instead.
Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Marek Olšák <[email protected]> (v1)
v1 -> v2: add tracking of struct field
v2 -> v3: minor adjustments based on Iago's feedback
Reviewed-by: Iago Toral Quiroga <[email protected]>
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This way one can reuse it in glsl, nir or other infrastructure without
pulling nir as dependency.
Signed-off-by: Emil Velikov <[email protected]>
Acked-by: Matt Turner <[email protected]>
Acked-by: Jose Fonseca <[email protected]>
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