XFAIL this completely at the moment:

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

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 85d4dd79b30db82af91ca64ba5517c0b04007d25..884ccf9299a133adbebb43f2ebd8b2085fd5335e 100644 (file)
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -59,8 +59,6 @@ private:
 
   DenseMap<const MCSymbol*, MCSymbolData*> SymbolMap;
 
-  bool needsSet(const MCExpr *Value);
-
   void EmitRegisterName(int64_t Register);
   void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) override;
   void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) override;
@@ -128,6 +126,7 @@ public:
   void ChangeSection(const MCSection *Section,
                      const MCExpr *Subsection) override;
 
+  void EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) override;
   void EmitLabel(MCSymbol *Symbol) override;
   void EmitDebugLabel(MCSymbol *Symbol) override;
 
@@ -208,6 +207,7 @@ public:
                              unsigned Column, unsigned Flags,
                              unsigned Isa, unsigned Discriminator,
                              StringRef FileName) override;
+  MCSymbol *getDwarfLineTableSymbol(unsigned CUID) override;
 
   void EmitIdent(StringRef IdentString) override;
   void EmitCFISections(bool EH, bool Debug) override;
@@ -344,6 +344,27 @@ void MCAsmStreamer::EmitLabel(MCSymbol *Symbol) {
   EmitEOL();
 }
 
+void MCAsmStreamer::EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) {
+  StringRef str = MCLOHIdToName(Kind);
+
+#ifndef NDEBUG
+  int NbArgs = MCLOHIdToNbArgs(Kind);
+  assert(NbArgs != -1 && ((size_t)NbArgs) == Args.size() && "Malformed LOH!");
+  assert(str != "" && "Invalid LOH name");
+#endif
+
+  OS << "\t" << MCLOHDirectiveName() << " " << str << "\t";
+  bool IsFirst = true;
+  for (MCLOHArgs::const_iterator It = Args.begin(), EndIt = Args.end();
+       It != EndIt; ++It) {
+    if (!IsFirst)
+      OS << ", ";
+    IsFirst = false;
+    OS << **It;
+  }
+  EmitEOL();
+}
+
 void MCAsmStreamer::EmitDebugLabel(MCSymbol *Symbol) {
   assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
   MCStreamer::EmitDebugLabel(Symbol);
@@ -937,6 +958,12 @@ void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
   EmitEOL();
 }
 
+MCSymbol *MCAsmStreamer::getDwarfLineTableSymbol(unsigned CUID) {
+  // Always use the zeroth line table, since asm syntax only supports one line
+  // table for now.
+  return MCStreamer::getDwarfLineTableSymbol(0);
+}
+
 void MCAsmStreamer::EmitIdent(StringRef IdentString) {
   assert(MAI->hasIdentDirective() && ".ident directive not supported");
   OS << "\t.ident\t";
@@ -1415,7 +1442,19 @@ void MCAsmStreamer::EmitRawTextImpl(StringRef String) {
 void MCAsmStreamer::FinishImpl() {
   // If we are generating dwarf for assembly source files dump out the sections.
   if (getContext().getGenDwarfForAssembly())
-    MCGenDwarfInfo::Emit(this, NULL);
+    MCGenDwarfInfo::Emit(this);
+
+  // Emit the label for the line table, if requested - since the rest of the
+  // line table will be defined by .loc/.file directives, and not emitted
+  // directly, the label is the only work required here.
+  auto &Tables = getContext().getMCDwarfLineTables();
+  if (!Tables.empty()) {
+    assert(Tables.size() == 1 && "asm output only supports one line table");
+    if (auto *Label = Tables.begin()->second.getLabel()) {
+      SwitchSection(getContext().getObjectFileInfo()->getDwarfLineSection());
+      EmitLabel(Label);
+    }
+  }
 
   if (!UseCFI)
     EmitFrames(AsmBackend.get(), false);