//===-- X86ShuffleDecodeConstantPool.h - X86 shuffle decode -----*-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 // //===----------------------------------------------------------------------===// // // Define several functions to decode x86 specific shuffle semantics using // constants from the constant pool. // //===----------------------------------------------------------------------===// #ifndef LLVM_LIB_TARGET_X86_X86SHUFFLEDECODECONSTANTPOOL_H #define LLVM_LIB_TARGET_X86_X86SHUFFLEDECODECONSTANTPOOL_H //===----------------------------------------------------------------------===// // Vector Mask Decoding //===----------------------------------------------------------------------===// namespace llvm { class Constant; template <typename T> class SmallVectorImpl; /// Decode a PSHUFB mask from an IR-level vector constant. void DecodePSHUFBMask(const Constant *C, unsigned Width, SmallVectorImpl<int> &ShuffleMask); /// Decode a VPERMILP variable mask from an IR-level vector constant. void DecodeVPERMILPMask(const Constant *C, unsigned ElSize, unsigned Width, SmallVectorImpl<int> &ShuffleMask); /// Decode a VPERMILP2 variable mask from an IR-level vector constant. void DecodeVPERMIL2PMask(const Constant *C, unsigned M2Z, unsigned ElSize, unsigned Width, SmallVectorImpl<int> &ShuffleMask); /// Decode a VPPERM variable mask from an IR-level vector constant. void DecodeVPPERMMask(const Constant *C, unsigned Width, SmallVectorImpl<int> &ShuffleMask); } // llvm namespace #endif