From acef606a733df3b3bca9cd8c1d74f55c2a5bc90f Mon Sep 17 00:00:00 2001
From: Pietro Fezzardi <pietro@rev.ng>
Date: Tue, 8 Mar 2022 17:02:09 +0100
Subject: [PATCH] DLATypeSystem.cpp: improve error reporting

---
 lib/DataLayoutAnalysis/DLATypeSystem.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/DataLayoutAnalysis/DLATypeSystem.cpp b/lib/DataLayoutAnalysis/DLATypeSystem.cpp
index 03f69683b..359ae2dfe 100644
--- a/lib/DataLayoutAnalysis/DLATypeSystem.cpp
+++ b/lib/DataLayoutAnalysis/DLATypeSystem.cpp
@@ -106,7 +106,7 @@ void debug_function LayoutTypeSystem::dumpDotOnFile(const char *FName,
                                                     bool ShowCollapsed) const {
   std::error_code EC;
   raw_fd_ostream DotFile(FName, EC);
-  revng_check(not EC, "Could not open file for printing LayoutTypeSystem dot");
+  revng_check(not EC, (EC.message() + ": " + FName).c_str());
 
   DotFile << "digraph LayoutTypeSystem {\n";
   DotFile << "  // List of nodes\n";