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//===- ComplexDeinterleavingPass.h - Complex Deinterleaving Pass *- C++ -*-===//

//

// 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 implements generation of target-specific intrinsics to support

// handling of complex number arithmetic and deinterleaving.

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_COMPLEXDEINTERLEAVING_H

#define LLVM_CODEGEN_COMPLEXDEINTERLEAVING_H

#include "llvm/IR/PassManager.h"

#include "llvm/IR/PatternMatch.h"

namespace llvm {

class Function;

class TargetMachine;

struct ComplexDeinterleavingPass

    : public PassInfoMixin<ComplexDeinterleavingPass> {

private:

  TargetMachine *TM;

public:

  ComplexDeinterleavingPass(TargetMachine *TM) : TM(TM) {}

  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);

};

enum class ComplexDeinterleavingOperation {

  CAdd,

  CMulPartial,

  // The following 'operations' are used to represent internal states. Backends

  // are not expected to try and support these in any capacity.

  Shuffle

};

enum class ComplexDeinterleavingRotation {

  Rotation_0 = 0,

  Rotation_90 = 1,

  Rotation_180 = 2,

  Rotation_270 = 3,

};

} // namespace llvm

#endif // LLVM_CODEGEN_COMPLEXDEINTERLEAVING_H