Thumb2 assembly parsing and encoding for USAX.

[oota-llvm.git] / lib / MC / MCStreamer.cpp

diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 5295d0f58f3aa8edec725ef3e87a451c2b169ba7..0fbf3875f1a050a368e5d615835daff5f4c8b3de 100644 (file)
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -22,7 +22,8 @@ using namespace llvm;
 
 MCStreamer::MCStreamer(MCContext &Ctx) : Context(Ctx), EmitEHFrame(true),
                                          EmitDebugFrame(false),
-                                         CurrentW64UnwindInfo(0) {
+                                         CurrentW64UnwindInfo(0),
+                                         LastSymbol(0) {
   const MCSection *section = NULL;
   SectionStack.push_back(std::make_pair(section, section));
 }
@@ -190,14 +191,14 @@ void MCStreamer::EmitCFIStartProc() {
   MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
   if (CurFrame && !CurFrame->End)
     report_fatal_error("Starting a frame before finishing the previous one!");
-  MCDwarfFrameInfo Frame;
 
+  MCDwarfFrameInfo Frame;
   Frame.Function = LastSymbol;
 
   // If the function is externally visible, we need to create a local
   // symbol to avoid relocations.
   StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix();
-  if (LastSymbol->getName().startswith(Prefix)) {
+  if (LastSymbol && LastSymbol->getName().startswith(Prefix)) {
     Frame.Begin = LastSymbol;
   } else {
     Frame.Begin = getContext().CreateTempSymbol();