Index: include/llvm/MC/MCStreamer.h
===================================================================
--- include/llvm/MC/MCStreamer.h
+++ include/llvm/MC/MCStreamer.h
@@ -222,6 +222,8 @@
     return DwarfFrameInfos;
   }
 
+  bool hasUnfinishedDwarfFrameInfo();
+
   unsigned getNumWinFrameInfos() { return WinFrameInfos.size(); }
   ArrayRef<WinEH::FrameInfo *> getWinFrameInfos() const {
     return WinFrameInfos;
Index: lib/MC/MCStreamer.cpp
===================================================================
--- lib/MC/MCStreamer.cpp
+++ lib/MC/MCStreamer.cpp
@@ -174,6 +174,11 @@
   return &DwarfFrameInfos.back();
 }
 
+bool MCStreamer::hasUnfinishedDwarfFrameInfo() {
+  MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
+  return CurFrame && !CurFrame->End;
+}
+
 void MCStreamer::EnsureValidDwarfFrame() {
   MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
   if (!CurFrame || CurFrame->End)
@@ -238,8 +243,7 @@
 }
 
 void MCStreamer::EmitCFIStartProc(bool IsSimple) {
-  MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
-  if (CurFrame && !CurFrame->End)
+  if (hasUnfinishedDwarfFrameInfo())
     report_fatal_error("Starting a frame before finishing the previous one!");
 
   MCDwarfFrameInfo Frame;