[Nios2] Remove Nios2 backend

As mentioned here http://lists.llvm.org/pipermail/llvm-dev/2019-January/129121.html This backend is incomplete and has not been maintained in several months.

Differential Revision: https://reviews.llvm.org/D56691

llvm-svn: 351231

1 files changed, 0 insertions, 66 deletions

diff --git a/llvm/lib/Target/Nios2/InstPrinter/Nios2InstPrinter.cpp b/llvm/lib/Target/Nios2/InstPrinter/Nios2InstPrinter.cpp
deleted file mode 100644
index de0a5f9e84e..00000000000
--- a/llvm/lib/Target/Nios2/InstPrinter/Nios2InstPrinter.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-//===-- Nios2InstPrinter.cpp - Convert Nios2 MCInst to assembly syntax-----===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This class prints an Nios2 MCInst to a .s file.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Nios2InstPrinter.h"
-
-#include "Nios2InstrInfo.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCInstrInfo.h"
-#include "llvm/Support/raw_ostream.h"
-using namespace llvm;
-
-#define DEBUG_TYPE "asm-printer"
-
-#define PRINT_ALIAS_INSTR
-#include "Nios2GenAsmWriter.inc"
-
-void Nios2InstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
-  OS << getRegisterName(RegNo);
-}
-
-void Nios2InstPrinter::printInst(const MCInst *MI, raw_ostream &O,
-                                 StringRef Annot, const MCSubtargetInfo &STI) {
-  // Try to print any aliases first.
-  if (!printAliasInstr(MI, STI, O))
-    printInstruction(MI, STI, O);
-  printAnnotation(O, Annot);
-}
-
-void Nios2InstPrinter::printOperand(const MCInst *MI, int OpNo,
-                                    const MCSubtargetInfo &STI,
-                                    raw_ostream &O) {
-  const MCOperand &Op = MI->getOperand(OpNo);
-  if (Op.isReg()) {
-    printRegName(O, Op.getReg());
-    return;
-  }
-
-  if (Op.isImm()) {
-    O << Op.getImm();
-    return;
-  }
-
-  assert(Op.isExpr() && "unknown operand kind in printOperand");
-  Op.getExpr()->print(O, &MAI, true);
-}
-
-void Nios2InstPrinter::printMemOperand(const MCInst *MI, int opNum,
-                                       const MCSubtargetInfo &STI,
-                                       raw_ostream &O, const char *Modifier) {
-  // Load/Store memory operands -- imm($reg)
-  printOperand(MI, opNum + 1, STI, O);
-  O << "(";
-  printOperand(MI, opNum, STI, O);
-  O << ")";
-}