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intel/compiler: mark some variables as per-primitive in FS if they come from MS

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Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15303>
This commit is contained in:
Marcin Ślusarz 2021-12-09 17:11:01 +01:00 • committed by Marge Bot
parent 8c16ce53a9
commit 81df66bfff
1 changed files with 19 additions and 0 deletions
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19
src/intel/compiler/brw_nir.c
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@ -912,6 +912,25 @@ void
brw_nir_link_shaders(const struct brw_compiler *compiler,
nir_shader *producer, nir_shader *consumer)
{
if (producer->info.stage == MESA_SHADER_MESH &&
consumer->info.stage == MESA_SHADER_FRAGMENT) {
/* gl_MeshPerPrimitiveNV[].gl_ViewportIndex, gl_PrimitiveID and gl_Layer
* are per primitive, but fragment shader does not have them marked as
* such. Add the annotation here.
*/
nir_foreach_shader_in_variable(var, consumer) {
switch (var->data.location) {
case VARYING_SLOT_LAYER:
case VARYING_SLOT_PRIMITIVE_ID:
case VARYING_SLOT_VIEWPORT:
var->data.per_primitive = 1;
break;
default:
continue;
}
}
}
nir_lower_io_arrays_to_elements(producer, consumer);
nir_validate_shader(producer, "after nir_lower_io_arrays_to_elements");
nir_validate_shader(consumer, "after nir_lower_io_arrays_to_elements");