+DEBUG_GET_ONCE_BOOL_OPTION(lp_no_rast, "LP_NO_RAST", FALSE)
+
+
+/** shared by all contexts */
+unsigned llvmpipe_variant_count;
+
+
+/**
+ * This function is called by the gallivm "garbage collector" when
+ * the LLVM global data structures are freed. We must free all LLVM-related
+ * data. Specifically, all JIT'd shader variants.
+ */
+static void
+garbage_collect_callback(void *cb_data)
+{
+ struct llvmpipe_context *lp = (struct llvmpipe_context *) cb_data;
+ struct lp_fs_variant_list_item *li;
+
+ /* Free all the context's shader variants */
+ li = first_elem(&lp->fs_variants_list);
+ while (!at_end(&lp->fs_variants_list, li)) {
+ struct lp_fs_variant_list_item *next = next_elem(li);
+ llvmpipe_remove_shader_variant(lp, li->base);
+ li = next;
+ }
+
+ /* Free all the context's primitive setup variants */
+ lp_delete_setup_variants(lp);
+
+ /* release references to setup variants, shaders */
+ lp_setup_set_setup_variant(lp->setup, NULL);
+ lp_setup_set_fs_variant(lp->setup, NULL);
+ lp_setup_reset(lp->setup);
+
+ /* This type will be recreated upon demand */
+ lp->jit_context_ptr_type = NULL;
+
+ /* mark all state as dirty to ensure new shaders are jit'd, etc. */
+ lp->dirty = ~0;
+}
+