From 3090b0ebf1b5ae6476fdee6bb876eb80fd1248b8 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Fri, 8 Oct 2010 17:18:54 +0000
Subject: [PATCH] Line number 0 indicates there is no source line/file name
 info available for this construct.

llvm-svn: 116061
---
 lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 74fe8643ab3..2c0aeb7e014 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -507,6 +507,8 @@ void DwarfDebug::addSourceLine(DIE *Die, DIVariable V) {
     return;
 
   unsigned Line = V.getLineNumber();
+  if (Line == 0)
+    return;
   unsigned FileID = GetOrCreateSourceID(V.getContext().getDirectory(),
                                         V.getContext().getFilename());
   assert(FileID && "Invalid file id");
@@ -522,6 +524,8 @@ void DwarfDebug::addSourceLine(DIE *Die, DIGlobalVariable G) {
     return;
 
   unsigned Line = G.getLineNumber();
+  if (Line == 0)
+    return;
   unsigned FileID = GetOrCreateSourceID(G.getContext().getDirectory(),
                                         G.getContext().getFilename());
   assert(FileID && "Invalid file id");
@@ -557,7 +561,7 @@ void DwarfDebug::addSourceLine(DIE *Die, DIType Ty) {
     return;
 
   unsigned Line = Ty.getLineNumber();
-  if (!Ty.getContext().Verify())
+  if (Line == 0 || !Ty.getContext().Verify())
     return;
   unsigned FileID = GetOrCreateSourceID(Ty.getContext().getDirectory(),
                                         Ty.getContext().getFilename());
@@ -574,6 +578,8 @@ void DwarfDebug::addSourceLine(DIE *Die, DINameSpace NS) {
     return;
 
   unsigned Line = NS.getLineNumber();
+  if (Line == 0)
+    return;
   StringRef FN = NS.getFilename();
   StringRef Dir = NS.getDirectory();