[Nios2] final infrastructure to provide compilation of a return from a function

This patch includes all missing functionality needed to provide first
compilation of a simple program that just returns from a function.
I've added a test case that checks for "ret" instruction printed in assembly
output.

Patch by Andrei Grischenko (andrei.l.grischenko@intel.com)
Differential revision: https://reviews.llvm.org/D39688

llvm-svn: 320035

1 files changed, 28 insertions, 0 deletions

diff --git a/llvm/lib/Target/Nios2/Nios2TargetObjectFile.h b/llvm/lib/Target/Nios2/Nios2TargetObjectFile.h
new file mode 100644
index 00000000000..28d7ff0ec66
--- /dev/null
+++ b/llvm/lib/Target/Nios2/Nios2TargetObjectFile.h
@@ -0,0 +1,28 @@
+//===-- llvm/Target/Nios2TargetObjectFile.h - Nios2 Object Info -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_NIOS2_NIOS2TARGETOBJECTFILE_H
+#define LLVM_LIB_TARGET_NIOS2_NIOS2TARGETOBJECTFILE_H
+
+#include "Nios2TargetMachine.h"
+#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
+
+namespace llvm {
+
+class Nios2TargetObjectFile : public TargetLoweringObjectFileELF {
+  const Nios2TargetMachine *TM;
+
+public:
+  Nios2TargetObjectFile() : TargetLoweringObjectFileELF() {}
+
+  void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
+};
+} // end namespace llvm
+
+#endif