glsl2: Add a pass for removing unused functions.

For a shader involving many small functions, this avoids running
optimization across all of them after they've been inlined
post-linking.

Reduces the runtime of linking and running a fragment shader from Yo
Frankie from 1.6 seconds to 0.9 seconds (-44.9%, +/- 3.3%).

1 files changed, 0 insertions, 1 deletions

diff --git a/src/glsl/ir.h b/src/glsl/ir.h
index e61485813dc..f58602515ef 100644
--- a/src/glsl/ir.h
+++ b/src/glsl/ir.h
@@ -410,7 +410,6 @@ public:
     */
    const char *name;
 
-private:
    /**
     * List of ir_function_signature for each overloaded function with this name.
     */