From d1e8249f9acd6e65e9804f5998906c6ce1915ec1 Mon Sep 17 00:00:00 2001
From: Niels Moseley <n.a.moseley@moseleyinstrumnets.com>
Date: Sat, 3 Nov 2018 18:07:51 +0100
Subject: [PATCH] Report an error when a liberty file contains pin references
 that reference non-existing pins

---
 passes/techmap/dfflibmap.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/passes/techmap/dfflibmap.cc b/passes/techmap/dfflibmap.cc
index 416ed2bd5..421073485 100644
--- a/passes/techmap/dfflibmap.cc
+++ b/passes/techmap/dfflibmap.cc
@@ -100,6 +100,9 @@ static bool parse_pin(LibertyAst *cell, LibertyAst *attr, std::string &pin_name,
 	for (auto child : cell->children)
 		if (child->id == "pin" && child->args.size() == 1 && child->args[0] == pin_name)
 			return true;
+
+	log_error("Malformed liberty file - cannot find pin '%s' in cell '%s'.\n", pin_name.c_str(), cell->args[0].c_str());
+
 	return false;
 }
 
-- 
2.30.2