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1//===-- X86ShuffleDecodeConstantPool.h - X86 shuffle decode -----*-C++-*---===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// Define several functions to decode x86 specific shuffle semantics using10// constants from the constant pool.11//12//===----------------------------------------------------------------------===//13 14#ifndef LLVM_LIB_TARGET_X86_X86SHUFFLEDECODECONSTANTPOOL_H15#define LLVM_LIB_TARGET_X86_X86SHUFFLEDECODECONSTANTPOOL_H16 17//===----------------------------------------------------------------------===//18// Vector Mask Decoding19//===----------------------------------------------------------------------===//20 21namespace llvm {22class Constant;23template <typename T> class SmallVectorImpl;24 25/// Decode a PSHUFB mask from an IR-level vector constant.26void DecodePSHUFBMask(const Constant *C, unsigned Width,27 SmallVectorImpl<int> &ShuffleMask);28 29/// Decode a VPERMILP variable mask from an IR-level vector constant.30void DecodeVPERMILPMask(const Constant *C, unsigned ElSize, unsigned Width,31 SmallVectorImpl<int> &ShuffleMask);32 33/// Decode a VPERMILP2 variable mask from an IR-level vector constant.34void DecodeVPERMIL2PMask(const Constant *C, unsigned M2Z, unsigned ElSize,35 unsigned Width, SmallVectorImpl<int> &ShuffleMask);36 37/// Decode a VPPERM variable mask from an IR-level vector constant.38void DecodeVPPERMMask(const Constant *C, unsigned Width,39 SmallVectorImpl<int> &ShuffleMask);40 41} // llvm namespace42 43#endif44