nir: Ignore ray query ranges that don't start with rq_initialize

Handles is a rare edge case where the ray query is used "before"
there is a rq_initialize.

cc: mesa-stable

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38850>

src/compiler/nir/nir_opt_ray_queries.c

@@ -300,6 +300,19 @@ nir_opt_ray_query_ranges(nir_shader *shader)
 
          struct hash_entry *index_entry =
             _mesa_hash_table_search(range_indices, ray_query_deref->var);
+         if (!index_entry) {
+            /* The range doesn't exist yet which means that the first instruction
+             * isn't the initialize. Ignore it.
+             */
+            for (uint32_t i = 0; i < ray_query_count; i++) {
+               if (ray_queries[i] == ray_query_deref->var) {
+                  ray_queries[i] = NULL;
+                  break;
+               }
+            }
+            continue;
+         }
+
          struct rq_range *range = ranges + (uintptr_t)index_entry->data;
 
          if (intrinsic->intrinsic != nir_intrinsic_rq_initialize) {