If tehre are not any line entry then do not try to emit .debug_line section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120637 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 4 insertions, 1 deletions

diff --git a/include/llvm/MC/MCContext.h b/include/llvm/MC/MCContext.h
index ae502baa1d..60d5c0fae1 100644
--- a/include/llvm/MC/MCContext.h
+++ b/include/llvm/MC/MCContext.h
@@ -180,6 +180,9 @@ namespace llvm {
     bool hasDwarfFiles(void) {
       return MCDwarfFiles.size() != 0;
     }
+    bool hasDwarfLines(void) {
+      return MCLineSectionOrder.size() != 0;
+    }
 
     const std::vector<MCDwarfFile *> &getMCDwarfFiles() {
       return MCDwarfFiles;
diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index c03f969e85..02b666235e 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -876,7 +876,7 @@ void MCAsmStreamer::EmitRawText(StringRef String) {
 
 void MCAsmStreamer::Finish() {
   // Dump out the dwarf file & directory tables and line tables.
-  if (getContext().hasDwarfFiles() && TLOF) {
+  if (getContext().hasDwarfFiles() && getContext().hasDwarfLines() && TLOF) {
     MCDwarfFileTable::Emit(this, TLOF->getDwarfLineSection(), NULL,
                            PointerSize);
   }