nir/load_libclc: run some opt passes for everybody

Cuts down serialized size from 2850288 to 1377780 bytes.

Reduces clinfo with Rusticl time by 40% for debug builds.

(Old data, but the point stands)

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15996>

src/intel/compiler/brw_kernel.c

@@ -39,7 +39,8 @@ load_clc_shader(struct brw_compiler *compiler, struct disk_cache *disk_cache,
       return compiler->clc_shader;
 
    nir_shader *nir =  nir_load_libclc_shader(64, disk_cache,
-                                             spirv_options, nir_options);
+                                             spirv_options, nir_options,
+                                             disk_cache != NULL);
    if (nir == NULL)
       return NULL;