Extend changes from r139986 to produce 256-bit AVX minps/minpd/maxps/maxpd.

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

diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp
index a200128ab69b8db3297d92e0be2040a259af4828..4658a3093fab369ea8e91d7fb22c2ff2764c9140 100644 (file)
--- a/lib/MC/MCDwarf.cpp
+++ b/lib/MC/MCDwarf.cpp
@@ -504,10 +504,11 @@ namespace {
     bool IsEH;
     const MCSymbol *SectionStart;
   public:
-    FrameEmitterImpl(bool usingCFI, bool isEH, const MCSymbol *sectionStart) :
-      CFAOffset(0), CIENum(0), UsingCFI(usingCFI), IsEH(isEH),
-      SectionStart(sectionStart) {
-    }
+    FrameEmitterImpl(bool usingCFI, bool isEH)
+      : CFAOffset(0), CIENum(0), UsingCFI(usingCFI), IsEH(isEH),
+        SectionStart(0) {}
+
+    void setSectionStart(const MCSymbol *Label) { SectionStart = Label; }
 
     /// EmitCompactUnwind - Emit the unwind information in a compact way. If
     /// we're successful, return 'true'. Otherwise, return 'false' and it will
@@ -894,7 +895,7 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCStreamer &streamer,
   const MCObjectFileInfo *MOFI = context.getObjectFileInfo();
   bool verboseAsm = streamer.isVerboseAsm();
 
-  if (!MOFI->isFunctionEHFrameSymbolPrivate() && IsEH) {
+  if (IsEH && frame.Function && !MOFI->isFunctionEHFrameSymbolPrivate()) {
     MCSymbol *EHSym =
       context.GetOrCreateSymbol(frame.Function->getName() + Twine(".eh"));
     streamer.EmitEHSymAttributes(frame.Function, EHSym);
@@ -1011,26 +1012,32 @@ void MCDwarfFrameEmitter::Emit(MCStreamer &Streamer,
   MCContext &Context = Streamer.getContext();
   MCObjectFileInfo *MOFI =
     const_cast<MCObjectFileInfo*>(Context.getObjectFileInfo());
+  FrameEmitterImpl Emitter(UsingCFI, IsEH);
+  ArrayRef<MCDwarfFrameInfo> FrameArray = Streamer.getFrameInfos();
+
+  // Emit the compact unwind info if available.
+  // FIXME: This emits both the compact unwind and the old CIE/FDE
+  //        information. Only one of those is needed.
+  if (IsEH && MOFI->getCompactUnwindSection())
+    for (unsigned i = 0, n = Streamer.getNumFrameInfos(); i < n; ++i) {
+      const MCDwarfFrameInfo &Frame = Streamer.getFrameInfo(i);
+      if (!Frame.CompactUnwindEncoding)
+        Emitter.EmitCompactUnwind(Streamer, Frame);
+    }
+
   const MCSection &Section = IsEH ? *MOFI->getEHFrameSection() :
                                     *MOFI->getDwarfFrameSection();
   Streamer.SwitchSection(&Section);
   MCSymbol *SectionStart = Context.CreateTempSymbol();
   Streamer.EmitLabel(SectionStart);
+  Emitter.setSectionStart(SectionStart);
 
   MCSymbol *FDEEnd = NULL;
   DenseMap<CIEKey, const MCSymbol*> CIEStarts;
-  FrameEmitterImpl Emitter(UsingCFI, IsEH, SectionStart);
 
   const MCSymbol *DummyDebugKey = NULL;
-  for (unsigned i = 0, n = Streamer.getNumFrameInfos(); i < n; ++i) {
-    const MCDwarfFrameInfo &Frame = Streamer.getFrameInfo(i);
-    if (IsEH && MOFI->getCompactUnwindSection() &&
-        Frame.CompactUnwindEncoding &&
-        Emitter.EmitCompactUnwind(Streamer, Frame)) {
-      FDEEnd = NULL;
-      continue;
-    }
-
+  for (unsigned i = 0, n = FrameArray.size(); i < n; ++i) {
+    const MCDwarfFrameInfo &Frame = FrameArray[i];
     CIEKey Key(Frame.Personality, Frame.PersonalityEncoding,
                Frame.LsdaEncoding);
     const MCSymbol *&CIEStart = IsEH ? CIEStarts[Key] : DummyDebugKey;