MC: Sketch registry support for target specific assembler backends.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96762 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/TargetAsmBackend.cpp b/lib/MC/TargetAsmBackend.cpp
new file mode 100644
index 0000000..918d272
--- /dev/null
+++ b/lib/MC/TargetAsmBackend.cpp
@@ -0,0 +1,19 @@
+//===-- TargetAsmBackend.cpp - Target Assembly Backend ---------------------==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Target/TargetAsmBackend.h"
+using namespace llvm;
+
+TargetAsmBackend::TargetAsmBackend(const Target &T)
+  : TheTarget(T)
+{
+}
+
+TargetAsmBackend::~TargetAsmBackend() {
+}