Preliminary support for ARM frame save directives emission via MI flags.

This is just very first approximation how the stuff should be done
(e.g. ARM-only for now). More to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127101 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARMAsmPrinter.h

@@ -82,6 +82,8 @@ private:
   // Generic helper used to emit e.g. ARMv5 mul pseudos
   void EmitPatchedInstruction(const MachineInstr *MI, unsigned TargetOpc);
 
+  void EmitUnwindingInstruction(const MachineInstr *MI);
+
 public:
   void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);