bool lower_clip_distance(gl_shader *shader);
void lower_output_reads(unsigned stage, exec_list *instructions);
bool lower_packing_builtins(exec_list *instructions, int op_mask);
+void lower_shared_reference(struct gl_shader *shader, unsigned *shared_size);
void lower_ubo_reference(struct gl_shader *shader);
void lower_packed_varyings(void *mem_ctx,
unsigned locations_used, ir_variable_mode mode,