This will be used by the nir linking pass so that we don't remove
otherwise unused varyings.
---
src/compiler/glsl/link_varyings.cpp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/compiler/glsl/link_varyings.cpp
b/src/compiler/glsl/link_varyings.cpp
index 528506fd0eb..656bf79ca9d 100644
--- a/src/compiler/glsl/link_varyings.cpp
+++ b/src/compiler/glsl/link_varyings.cpp
@@ -2268,6 +2268,9 @@ assign_varying_locations(struct gl_context *ctx,
return false;
}
+ /* Mark xfb varyings as always active */
+ matched_candidate->toplevel_var->data.always_active_io = 1;
+
if (matched_candidate->toplevel_var->data.is_unmatched_generic_inout) {
matched_candidate->toplevel_var->data.is_xfb_only = 1;
matches.record(matched_candidate->toplevel_var, NULL);
--
2.13.5
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