Move EmitInstruction to MCObjectStreamer so that ELF and MachO can share it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117925 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index a10a63e..21f3002 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -31,8 +31,8 @@
 
 class MCMachOStreamer : public MCObjectStreamer {
 private:
-  void EmitInstToFragment(const MCInst &Inst);
-  void EmitInstToData(const MCInst &Inst);
+  virtual void EmitInstToFragment(const MCInst &Inst);
+  virtual void EmitInstToData(const MCInst &Inst);
 
 public:
   MCMachOStreamer(MCContext &Context, TargetAsmBackend &TAB,
@@ -98,8 +98,6 @@
     //report_fatal_error("unsupported directive: '.file'");
   }
 
-  virtual void EmitInstruction(const MCInst &Inst);
-
   virtual void Finish();
 
   /// @}
@@ -406,39 +404,6 @@
   DF->getContents().append(Code.begin(), Code.end());
 }
 
-void MCMachOStreamer::EmitInstruction(const MCInst &Inst) {
-  // Scan for values.
-  for (unsigned i = Inst.getNumOperands(); i--; )
-    if (Inst.getOperand(i).isExpr())
-      AddValueSymbols(Inst.getOperand(i).getExpr());
-
-  getCurrentSectionData()->setHasInstructions(true);
-
-  // Now that a machine instruction has been assembled into this section, make
-  // a line entry for any .loc directive that has been seen.
-  MCLineEntry::Make(this, getCurrentSection());
-
-  // If this instruction doesn't need relaxation, just emit it as data.
-  if (!getAssembler().getBackend().MayNeedRelaxation(Inst)) {
-    EmitInstToData(Inst);
-    return;
-  }
-
-  // Otherwise, if we are relaxing everything, relax the instruction as much as
-  // possible and emit it as data.
-  if (getAssembler().getRelaxAll()) {
-    MCInst Relaxed;
-    getAssembler().getBackend().RelaxInstruction(Inst, Relaxed);
-    while (getAssembler().getBackend().MayNeedRelaxation(Relaxed))
-      getAssembler().getBackend().RelaxInstruction(Relaxed, Relaxed);
-    EmitInstToData(Relaxed);
-    return;
-  }
-
-  // Otherwise emit to a separate fragment.
-  EmitInstToFragment(Inst);
-}
-
 void MCMachOStreamer::Finish() {
   // Dump out the dwarf file & directory tables and line tables.
   if (getContext().hasDwarfFiles()) {