llvm/llvm/lib/Target/PowerPC/PPCVSXCopy.cpp

//===-------------- PPCVSXCopy.cpp - VSX Copy Legalization ----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// A pass which deals with the complexity of generating legal VSX register
// copies to/from register classes which partially overlap with the VSX
// register file.
//
//===----------------------------------------------------------------------===//

#include "MCTargetDesc/PPCPredicates.h"
#include "PPC.h"
#include "PPCHazardRecognizers.h"
#include "PPCInstrBuilder.h"
#include "PPCInstrInfo.h"
#include "PPCMachineFunctionInfo.h"
#include "PPCTargetMachine.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"

usingnamespacellvm;

#define DEBUG_TYPE …

namespace {
  // PPCVSXCopy pass - For copies between VSX registers and non-VSX registers
  // (Altivec and scalar floating-point registers), we need to transform the
  // copies into subregister copies with other restrictions.
  struct PPCVSXCopy : public MachineFunctionPass { … };
}

INITIALIZE_PASS(…)

char PPCVSXCopy::ID = …;
FunctionPass*
llvm::createPPCVSXCopyPass() { … }