| //===-- 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 |