From 3f7833a27364f112d7d54fd3b98517cd82433415 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Mon, 12 Jan 2009 23:09:42 +0000
Subject: [PATCH] Emit debug info, only if at least one compile unit is seen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62118 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/AsmPrinter/DwarfWriter.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
index acbec3c66cd..2ec07f8d8b9 100644
--- a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
@@ -3596,10 +3596,16 @@ public:
 
   /// SetDebugInfo - Create global DIEs and emit initial debug info sections.
   /// This is inovked by the target AsmPrinter.
-  void SetDebugInfo() {
-    // FIXME - Check if the module has debug info or not.
+  void SetDebugInfo(MachineModuleInfo *mmi) {
+
       // Create all the compile unit DIEs.
       ConstructCompileUnits();
+      
+      if (DW_CUs.empty())
+        return;
+
+      MMI = mmi;
+      shouldEmit = true;
 
       // Create DIEs for each of the externally visible global variables.
       ConstructGlobalVariableDIEs();