i965: Make fs/vec4_visitor inherit from ir_visitor directly

This is using multiple inheritance in C++.  However, ir_visitor is really
just an interface with no data so it shouldn't be so bad.

Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index f63b149dfcf..6f16c3140ac 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -66,7 +66,7 @@ namespace brw {
  *
  * Translates either GLSL IR or Mesa IR (for ARB_fragment_program) into FS IR.
  */
-class fs_visitor : public backend_shader
+class fs_visitor : public backend_shader, public ir_visitor
 {
 public:
    const fs_reg reg_null_f;