From 27132e42e90a758da4ebb4090e6421964d10c08b Mon Sep 17 00:00:00 2001
From: Ilia Filippov <ili.filippov@gmail.com>
Date: Wed, 12 Mar 2014 19:29:05 +0400
Subject: [PATCH] resolving an issue with Debug Info metadata after LLVM_3_4

---
 module.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/module.cpp b/module.cpp
index 6aeeddfd..67e2bf0e 100644
--- a/module.cpp
+++ b/module.cpp
@@ -1,5 +1,5 @@
 /*
-  Copyright (c) 2010-2013, Intel Corporation
+  Copyright (c) 2010-2014, Intel Corporation
   All rights reserved.
 
   Redistribution and use in source and binary forms, with or without
@@ -949,6 +949,15 @@ Module::writeOutput(OutputType outputType, const char *outFileName,
         lStripUnusedDebugInfo(module);
     }
 
+#if defined (LLVM_3_4) || defined (LLVM_3_5)
+    // In LLVM_3_4 after r195494 and r195504 revisions we should pass
+    // "Debug Info Version" constant to the module. LLVM will ignore
+    // our Debug Info metadata without it.
+    if (g->generateDebuggingSymbols == true) {
+        module->addModuleFlag(llvm::Module::Error, "Debug Info Version", llvm::DEBUG_METADATA_VERSION);
+    }
+#endif
+
     // First, issue a warning if the output file suffix and the type of
     // file being created seem to mismatch.  This can help catch missing
     // command-line arguments specifying the output file type.