Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/lib/Target/Nios2/Nios2InstrInfo.cpp

@@ -1,43 +0,0 @@
-//===-- Nios2InstrInfo.cpp - Nios2 Instruction Information ----------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains the Nios2 implementation of the TargetInstrInfo class.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Nios2InstrInfo.h"
-#include "Nios2TargetMachine.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-
-using namespace llvm;
-
-#define GET_INSTRINFO_CTOR_DTOR
-#include "Nios2GenInstrInfo.inc"
-
-// Pin the vtable to this file.
-void Nios2InstrInfo::anchor() {}
-
-Nios2InstrInfo::Nios2InstrInfo(Nios2Subtarget &ST)
-    : Nios2GenInstrInfo(), RI(ST), Subtarget(ST) {}
-
-/// Expand Pseudo instructions into real backend instructions
-bool Nios2InstrInfo::expandPostRAPseudo(MachineInstr &MI) const {
-  MachineBasicBlock &MBB = *MI.getParent();
-
-  switch (MI.getDesc().getOpcode()) {
-  default:
-    return false;
-  case Nios2::RetRA:
-    BuildMI(MBB, MI, MI.getDebugLoc(), get(Nios2::RET_R1)).addReg(Nios2::RA);
-    break;
-  }
-
-  MBB.erase(MI);
-  return true;
-}