glsl: don't eliminate subroutine types.

This stops dead code from removing subroutines types,
we need these for the queries to work properly.

Reviewed-by: Kenneth Graunke <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/glsl/opt_dead_code.cpp b/src/glsl/opt_dead_code.cpp
index 04e4d5673d2..e4bf874700c 100644
--- a/src/glsl/opt_dead_code.cpp
+++ b/src/glsl/opt_dead_code.cpp
@@ -126,6 +126,9 @@ do_dead_code(exec_list *instructions, bool uniform_locations_assigned)
                if (block_type->interface_packing != GLSL_INTERFACE_PACKING_PACKED)
                   continue;
             }
+
+            if (entry->var->type->is_subroutine())
+               continue;
          }
 
 	 entry->var->remove();