llvm/llvm/lib/Target/X86/MCTargetDesc/X86ShuffleDecode.cpp

//===-- X86ShuffleDecode.cpp - X86 shuffle decode logic -------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Define several functions to decode x86 specific shuffle semantics into a
// generic vector mask.
//
//===----------------------------------------------------------------------===//

#include "X86ShuffleDecode.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/MathExtras.h"

//===----------------------------------------------------------------------===//
//  Vector Mask Decoding
//===----------------------------------------------------------------------===//

namespace llvm {

void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeInsertElementMask(unsigned NumElts, unsigned Idx, unsigned Len,
                             SmallVectorImpl<int> &ShuffleMask) { … }

// <3,1> or <6,7,2,3>
void DecodeMOVHLPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask) { … }

// <0,2> or <0,1,4,5>
void DecodeMOVLHPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeMOVSLDUPMask(unsigned NumElts, SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeMOVSHDUPMask(unsigned NumElts, SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeMOVDDUPMask(unsigned NumElts, SmallVectorImpl<int> &ShuffleMask) { … }

void DecodePSLLDQMask(unsigned NumElts, unsigned Imm,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodePSRLDQMask(unsigned NumElts, unsigned Imm,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodePALIGNRMask(unsigned NumElts, unsigned Imm,
                       SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVALIGNMask(unsigned NumElts, unsigned Imm,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodePSHUFMask(unsigned NumElts, unsigned ScalarBits, unsigned Imm,
                     SmallVectorImpl<int> &ShuffleMask) { … }

void DecodePSHUFHWMask(unsigned NumElts, unsigned Imm,
                       SmallVectorImpl<int> &ShuffleMask) { … }

void DecodePSHUFLWMask(unsigned NumElts, unsigned Imm,
                       SmallVectorImpl<int> &ShuffleMask) { … }

void DecodePSWAPMask(unsigned NumElts, SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeSHUFPMask(unsigned NumElts, unsigned ScalarBits,
                     unsigned Imm, SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeUNPCKHMask(unsigned NumElts, unsigned ScalarBits,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeUNPCKLMask(unsigned NumElts, unsigned ScalarBits,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVectorBroadcast(unsigned NumElts,
                           SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeSubVectorBroadcast(unsigned DstNumElts, unsigned SrcNumElts,
                              SmallVectorImpl<int> &ShuffleMask) { … }

void decodeVSHUF64x2FamilyMask(unsigned NumElts, unsigned ScalarSize,
                               unsigned Imm,
                               SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVPERM2X128Mask(unsigned NumElts, unsigned Imm,
                          SmallVectorImpl<int> &ShuffleMask) { … }

void DecodePSHUFBMask(ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeBLENDMask(unsigned NumElts, unsigned Imm,
                     SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVPPERMMask(ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVPERMMask(unsigned NumElts, unsigned Imm,
                     SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeZeroExtendMask(unsigned SrcScalarBits, unsigned DstScalarBits,
                          unsigned NumDstElts, bool IsAnyExtend,
                          SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeZeroMoveLowMask(unsigned NumElts,
                           SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeScalarMoveMask(unsigned NumElts, bool IsLoad,
                          SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeEXTRQIMask(unsigned NumElts, unsigned EltSize, int Len, int Idx,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeINSERTQIMask(unsigned NumElts, unsigned EltSize, int Len, int Idx,
                        SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVPERMILPMask(unsigned NumElts, unsigned ScalarBits,
                        ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
                        SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVPERMIL2PMask(unsigned NumElts, unsigned ScalarBits, unsigned M2Z,
                         ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
                         SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVPERMVMask(ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
                      SmallVectorImpl<int> &ShuffleMask) { … }

void DecodeVPERMV3Mask(ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
                      SmallVectorImpl<int> &ShuffleMask) { … }

} // namespace llvm