nir: fix marking XFB varyings as always active IO
Components need to be handled, otherwise if a shader has two XFB varyings at the same location, only one will be marked as always active. Cc: mesa-stable Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16092>
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@ -957,14 +957,14 @@ nir_compact_varyings(nir_shader *producer, nir_shader *consumer,
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void
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nir_link_xfb_varyings(nir_shader *producer, nir_shader *consumer)
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{
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nir_variable *input_vars[MAX_VARYING] = { 0 };
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nir_variable *input_vars[MAX_VARYING][4] = { 0 };
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nir_foreach_shader_in_variable(var, consumer) {
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if (var->data.location >= VARYING_SLOT_VAR0 &&
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var->data.location - VARYING_SLOT_VAR0 < MAX_VARYING) {
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unsigned location = var->data.location - VARYING_SLOT_VAR0;
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input_vars[location] = var;
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input_vars[location][var->data.location_frac] = var;
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}
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}
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@ -976,8 +976,8 @@ nir_link_xfb_varyings(nir_shader *producer, nir_shader *consumer)
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continue;
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unsigned location = var->data.location - VARYING_SLOT_VAR0;
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if (input_vars[location]) {
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input_vars[location]->data.always_active_io = true;
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if (input_vars[location][var->data.location_frac]) {
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input_vars[location][var->data.location_frac]->data.always_active_io = true;
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}
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}
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}
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