glsl: Refactor out cloning of function prototypes.

This allows us to reuse some code and will be useful later.

1 files changed, 1 insertions, 16 deletions

diff --git a/src/glsl/ir_import_prototypes.cpp b/src/glsl/ir_import_prototypes.cpp
index 2bdc8d9fd7..4e0b30aa90 100644
--- a/src/glsl/ir_import_prototypes.cpp
+++ b/src/glsl/ir_import_prototypes.cpp
@@ -82,22 +82,7 @@ public:
    {
       assert(this->function != NULL);
 
-      ir_function_signature *copy =
-	 new(mem_ctx) ir_function_signature(ir->return_type);
-
-      copy->is_defined = false;
-      copy->is_builtin = ir->is_builtin;
-
-      /* Clone the parameter list, but NOT the body.
-       */
-      foreach_list_const(node, &ir->parameters) {
-	 const ir_variable *const param = (const ir_variable *) node;
-
-	 assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
-
-	 ir_variable *const param_copy = param->clone(mem_ctx, NULL);
-	 copy->parameters.push_tail(param_copy);
-      }
+      ir_function_signature *copy = ir->clone_prototype(mem_ctx, NULL);
 
       this->function->add_signature(copy);