From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Fri, 5 Nov 2010 22:20:49 +0000 (+0000)
Subject: Don't write an empty DIAG_USER_MAPPINGS record.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=60f7684881f9f6bc779e91212aea89d9afc723dd;p=clang

Don't write an empty DIAG_USER_MAPPINGS record.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118305 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp
index a5977f5cfe..deb6c87efb 100644
--- a/lib/Serialization/ASTWriter.cpp
+++ b/lib/Serialization/ASTWriter.cpp
@@ -1451,7 +1451,8 @@ void ASTWriter::WriteUserDiagnosticMappings(const Diagnostic &Diag) {
     }
   }
 
-  Stream.EmitRecord(DIAG_USER_MAPPINGS, Record);
+  if (!Record.empty())
+    Stream.EmitRecord(DIAG_USER_MAPPINGS, Record);
 }
 
 //===----------------------------------------------------------------------===//