I managed to revert the change from unlinked at some point while
cleaning up the changes. glsl-fs-raytrace-bug27060 drops from 389
instructions to 370.
progress = do_if_simplification(ir) || progress;
progress = do_copy_propagation(ir) || progress;
progress = do_dead_code_local(ir) || progress;
- progress = do_dead_code_unlinked(ir) || progress;
+ progress = do_dead_code(ir) || progress;
progress = do_constant_variable_unlinked(ir) || progress;
progress = do_constant_folding(ir) || progress;
progress = do_if_return(ir) || progress;