1 files changed, 15 insertions, 0 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h
index 8294b8a19bd..da867427e1a 100644
--- a/src/glsl/ir.h
+++ b/src/glsl/ir.h
@@ -1126,6 +1126,21 @@ public:
     * List of ir_function_signature for each overloaded function with this name.
     */
    struct exec_list signatures;
+
+   /**
+    * is this function a subroutine type declaration
+    * e.g. subroutine void type1(float arg1);
+    */
+   bool is_subroutine;
+
+   /**
+    * is this function associated to a subroutine type
+    * e.g. subroutine (type1, type2) function_name { function_body };
+    * would have num_subroutine_types 2,
+    * and pointers to the type1 and type2 types.
+    */
+   int num_subroutine_types;
+   const struct glsl_type **subroutine_types;
 };
 
 inline const char *ir_function_signature::function_name() const