bool lower_variable_index_to_cond_assign(exec_list *instructions,
bool lower_input, bool lower_output, bool lower_temp, bool lower_uniform);
bool lower_quadop_vector(exec_list *instructions, bool dont_lower_swz);
+bool lower_clip_distance(exec_list *instructions);
bool optimize_redundant_jumps(exec_list *instructions);
ir_rvalue *