Introduce a string_ostream string builder facilty

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

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 11654e50f6dfbf990e672a8bba6f1e85204872f4..a3a81a6bc71d5bc6ed03e29d4073cb53f98f7aa2 100644 (file)
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -120,7 +120,6 @@ public:
 
   void EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) override;
   void EmitLabel(MCSymbol *Symbol) override;
-  void EmitDebugLabel(MCSymbol *Symbol) override;
 
   void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
   void EmitLinkerOptions(ArrayRef<std::string> Options) override;
@@ -131,12 +130,6 @@ public:
 
   void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
   void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override;
-  void EmitDwarfAdvanceLineAddr(int64_t LineDelta, const MCSymbol *LastLabel,
-                                const MCSymbol *Label,
-                                unsigned PointerSize) override;
-  void EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
-                                 const MCSymbol *Label) override;
-
   bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
 
   void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
@@ -340,14 +333,6 @@ void MCAsmStreamer::EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) {
   EmitEOL();
 }
 
-void MCAsmStreamer::EmitDebugLabel(MCSymbol *Symbol) {
-  assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
-  MCStreamer::EmitDebugLabel(Symbol);
-
-  OS << *Symbol << MAI->getDebugLabelSuffix();
-  EmitEOL();
-}
-
 void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
   switch (Flag) {
   case MCAF_SyntaxUnified:         OS << "\t.syntax unified"; break;
@@ -416,22 +401,6 @@ void MCAsmStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {
   EmitEOL();
 }
 
-void MCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
-                                             const MCSymbol *LastLabel,
-                                             const MCSymbol *Label,
-                                             unsigned PointerSize) {
-  EmitDwarfSetLineAddr(LineDelta, Label, PointerSize);
-}
-
-void MCAsmStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
-                                              const MCSymbol *Label) {
-  EmitIntValue(dwarf::DW_CFA_advance_loc4, 1);
-  const MCExpr *AddrDelta = BuildSymbolDiff(getContext(), Label, LastLabel);
-  AddrDelta = ForceExpAbs(AddrDelta);
-  EmitValue(AddrDelta, 4);
-}
-
-
 bool MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
                                         MCSymbolAttr Attribute) {
   switch (Attribute) {
@@ -966,10 +935,7 @@ void MCAsmStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
 }
 
 void MCAsmStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
-  // Put a dummy non-null value in Frame.End to mark that this frame has been
-  // closed.
-  Frame.End = (MCSymbol *) 1;
-
+  MCStreamer::EmitCFIEndProcImpl(Frame);
   OS << "\t.cfi_endproc";
   EmitEOL();
 }
@@ -1156,17 +1122,14 @@ void MCAsmStreamer::EmitWin64EHHandlerData() {
 void MCAsmStreamer::EmitWin64EHPushReg(unsigned Register) {
   MCStreamer::EmitWin64EHPushReg(Register);
 
-  OS << "\t.seh_pushreg ";
-  EmitRegisterName(Register);
+  OS << "\t.seh_pushreg " << Register;
   EmitEOL();
 }
 
 void MCAsmStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
   MCStreamer::EmitWin64EHSetFrame(Register, Offset);
 
-  OS << "\t.seh_setframe ";
-  EmitRegisterName(Register);
-  OS << ", " << Offset;
+  OS << "\t.seh_setframe " << Register << ", " << Offset;
   EmitEOL();
 }
 
@@ -1180,18 +1143,14 @@ void MCAsmStreamer::EmitWin64EHAllocStack(unsigned Size) {
 void MCAsmStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
   MCStreamer::EmitWin64EHSaveReg(Register, Offset);
 
-  OS << "\t.seh_savereg ";
-  EmitRegisterName(Register);
-  OS << ", " << Offset;
+  OS << "\t.seh_savereg " << Register << ", " << Offset;
   EmitEOL();
 }
 
 void MCAsmStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
   MCStreamer::EmitWin64EHSaveXMM(Register, Offset);
 
-  OS << "\t.seh_savexmm ";
-  EmitRegisterName(Register);
-  OS << ", " << Offset;
+  OS << "\t.seh_savexmm " << Register << ", " << Offset;
   EmitEOL();
 }
 
@@ -1216,9 +1175,10 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst,
   raw_ostream &OS = GetCommentOS();
   SmallString<256> Code;
   SmallVector<MCFixup, 4> Fixups;
-  raw_svector_ostream VecOS(Code);
-  Emitter->EncodeInstruction(Inst, VecOS, Fixups, STI);
-  VecOS.flush();
+  {
+    raw_svector_ostream VecOS(Code);
+    Emitter->EncodeInstruction(Inst, VecOS, Fixups, STI);
+  }
 
   // If we are showing fixups, create symbolic markers in the encoded
   // representation. We do this by making a per-bit map to the fixup item index,