anv: add analysis for push descriptor uses and store it in shader cache

We'll use this information to avoid :
   - binding table emission
   - allocation of surface states

v2: Fix anv_nir_push_desc_ubo_fully_promoted()

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19050>

src/intel/vulkan/anv_nir.h

@@ -82,6 +82,17 @@ void anv_nir_validate_push_layout(struct brw_stage_prog_data *prog_data,
 
 bool anv_nir_add_base_work_group_id(nir_shader *shader);
 
+uint32_t anv_nir_compute_used_push_descriptors(nir_shader *shader,
+                                               const struct anv_pipeline_layout *layout);
+
+bool anv_nir_loads_push_desc_buffer(nir_shader *nir,
+                                    const struct anv_pipeline_layout *layout,
+                                    const struct anv_pipeline_bind_map *bind_map);
+
+uint32_t anv_nir_push_desc_ubo_fully_promoted(nir_shader *nir,
+                                              const struct anv_pipeline_layout *layout,
+                                              const struct anv_pipeline_bind_map *bind_map);
+
 #ifdef __cplusplus
 }
 #endif