glsl/linker: attempt to match anonymous structures at link

This is my attempt at fixing at least one of the UE4 bugs with GL4.3.

If we are doing intrastage matching and hit anonymous structs, then
we should do a record comparison instead of using the names.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95005
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/compiler/glsl/link_varyings.cpp b/src/compiler/glsl/link_varyings.cpp
index 59ce1a2d285162afb69aaf69830e2f4dce52a7e3..1782a967ebf197f12b2a6e318090da15cdda9a17 100644 (file)
--- a/src/compiler/glsl/link_varyings.cpp
+++ b/src/compiler/glsl/link_varyings.cpp
@@ -226,15 +226,21 @@ cross_validate_types_and_qualifiers(struct gl_shader_program *prog,
        *     fragment language."
        */
       if (!output->type->is_array() || !is_gl_identifier(output->name)) {
-         linker_error(prog,
-                      "%s shader output `%s' declared as type `%s', "
-                      "but %s shader input declared as type `%s'\n",
-                      _mesa_shader_stage_to_string(producer_stage),
-                      output->name,
-                      output->type->name,
-                      _mesa_shader_stage_to_string(consumer_stage),
-                      input->type->name);
-         return;
+         bool anon_matches = output->type->is_anonymous() &&
+            type_to_match->is_anonymous() &&
+            type_to_match->record_compare(output->type);
+
+         if (!anon_matches) {
+            linker_error(prog,
+                         "%s shader output `%s' declared as type `%s', "
+                         "but %s shader input declared as type `%s'\n",
+                         _mesa_shader_stage_to_string(producer_stage),
+                         output->name,
+                         output->type->name,
+                         _mesa_shader_stage_to_string(consumer_stage),
+                         input->type->name);
+            return;
+         }
       }
    }