From cf79630be0c43af93e5ae6d7ae8382b27fcd81d1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Povi=C5=A1er?= <povik@cutebit.org>
Date: Sat, 19 Oct 2024 01:18:30 +0200
Subject: [PATCH] keep_hierarchy: Require size information on blackboxes

---
 passes/hierarchy/keep_hierarchy.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/passes/hierarchy/keep_hierarchy.cc b/passes/hierarchy/keep_hierarchy.cc
index 2a38751c8..04c8cfdc2 100644
--- a/passes/hierarchy/keep_hierarchy.cc
+++ b/passes/hierarchy/keep_hierarchy.cc
@@ -37,6 +37,9 @@ struct ThresholdHiearchyKeeping {
 		if (module->has_attribute(ID(gate_cost_equivalent)))
 			return module->attributes[ID(gate_cost_equivalent)].as_int();
 
+		if (module->get_blackbox_attribute())
+			log_error("Missing cost information on instanced blackbox %s\n", log_id(module));
+
 		if (done.count(module))
 			return done.at(module);