added a skeleton of the ARM backend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28301 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARM.h

@@ -0,0 +1,40 @@
+//===-- ARM.h - Top-level interface for ARM representation---- --*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the "Instituto Nokia de Tecnologia" and
+// is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the entry points for global functions defined in the LLVM
+// ARM back-end.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef TARGET_ARM_H
+#define TARGET_ARM_H
+
+#include <iosfwd>
+#include <cassert>
+
+namespace llvm {
+  class FunctionPass;
+  class TargetMachine;
+
+  FunctionPass *createARMISelDag(TargetMachine &TM);
+  FunctionPass *createARMCodePrinterPass(std::ostream &OS, TargetMachine &TM);
+} // end namespace llvm;
+
+// Defines symbolic names for ARM registers.  This defines a mapping from
+// register name to register number.
+//
+#include "ARMGenRegisterNames.inc"
+
+// Defines symbolic names for the ARM instructions.
+//
+#include "ARMGenInstrNames.inc"
+
+
+#endif