llvm/llvm/lib/Target/Mips/MipsPreLegalizerCombiner.cpp

//=== lib/CodeGen/GlobalISel/MipsPreLegalizerCombiner.cpp --------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This pass does combining of machine instructions at the generic MI level,
// before the legalizer.
//
//===----------------------------------------------------------------------===//

#include "MipsLegalizerInfo.h"
#include "MipsTargetMachine.h"
#include "llvm/CodeGen/GlobalISel/Combiner.h"
#include "llvm/CodeGen/GlobalISel/CombinerHelper.h"
#include "llvm/CodeGen/GlobalISel/CombinerInfo.h"
#include "llvm/CodeGen/GlobalISel/GISelKnownBits.h"
#include "llvm/CodeGen/GlobalISel/MIPatternMatch.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/InitializePasses.h"

#define DEBUG_TYPE …

usingnamespacellvm;

namespace {
struct MipsPreLegalizerCombinerInfo : public CombinerInfo { … };

class MipsPreLegalizerCombinerImpl : public Combiner { … };

// Pass boilerplate
// ================

class MipsPreLegalizerCombiner : public MachineFunctionPass { … };
} // end anonymous namespace

void MipsPreLegalizerCombiner::getAnalysisUsage(AnalysisUsage &AU) const { … }

MipsPreLegalizerCombiner::MipsPreLegalizerCombiner() : … { … }

bool MipsPreLegalizerCombiner::runOnMachineFunction(MachineFunction &MF) { … }

char MipsPreLegalizerCombiner::ID = …;
INITIALIZE_PASS_BEGIN(MipsPreLegalizerCombiner, DEBUG_TYPE,
                      "Combine Mips machine instrs before legalization", false,
                      false)
INITIALIZE_PASS_DEPENDENCY(TargetPassConfig)
INITIALIZE_PASS_DEPENDENCY(GISelKnownBitsAnalysis)
INITIALIZE_PASS_END(MipsPreLegalizerCombiner, DEBUG_TYPE,
                    "Combine Mips machine instrs before legalization", false,
                    false)

namespace llvm {
FunctionPass *createMipsPreLegalizeCombiner() { … }
} // end namespace llvm