add a new MCInstPrinter class, move the (trivial) MCDisassmbler ctor inline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81745 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/MC/MCDisassembler.h

@@ -22,7 +22,7 @@ class raw_ostream;
 class MCDisassembler {
 public:
   /// Constructor     - Performs initial setup for the disassembler.
-  MCDisassembler();
+  MCDisassembler() {}
   
   virtual ~MCDisassembler();
   

include/llvm/MC/MCInstPrinter.h

@@ -0,0 +1,33 @@
+//===-- MCInstPrinter.h - Convert an MCInst to target assembly syntax -----===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCINSTPRINTER_H
+#define LLVM_MC_MCINSTPRINTER_H
+
+namespace llvm {
+class MCInst;
+class raw_ostream;
+  
+/// MCInstPrinter - This is an instance of a target assembly language printer
+/// that converts an MCInst to valid target assembly syntax.
+class MCInstPrinter {
+  raw_ostream &O;
+public:
+  MCInstPrinter(raw_ostream &o) : O(o) {}
+  
+  virtual ~MCInstPrinter();
+  
+  /// printInst - Print the specified MCInst to the current raw_ostream.
+  ///
+  virtual void printInst(const MCInst *MI) = 0;
+};
+  
+} // namespace llvm
+
+#endif

lib/MC/MCDisassembler.cpp

@@ -10,8 +10,5 @@
 #include "llvm/MC/MCDisassembler.h"
 using namespace llvm;
 
-MCDisassembler::MCDisassembler() {
-}
-  
 MCDisassembler::~MCDisassembler() {
 }

lib/MC/MCInstPrinter.cpp

@@ -0,0 +1,14 @@
+//===-- MCInstPrinter.cpp - Convert an MCInst to target assembly syntax ---===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCInstPrinter.h"
+using namespace llvm;
+
+MCInstPrinter::~MCInstPrinter() {
+}