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llvm-mirror/lib/Target/X86/X86ShuffleDecodeConstantPool.h
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

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2.2 KiB
C++

//===-- 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
#include "llvm/ADT/SmallVector.h"
//===----------------------------------------------------------------------===//
// Vector Mask Decoding
//===----------------------------------------------------------------------===//
namespace llvm {
class Constant;
class MVT;
/// 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 MatchImm, 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);
/// Decode a VPERM W/D/Q/PS/PD mask from an IR-level vector constant.
void DecodeVPERMVMask(const Constant *C, unsigned ElSize, unsigned Width,
SmallVectorImpl<int> &ShuffleMask);
/// Decode a VPERMT2 W/D/Q/PS/PD mask from an IR-level vector constant.
void DecodeVPERMV3Mask(const Constant *C, unsigned ElSize, unsigned Width,
SmallVectorImpl<int> &ShuffleMask);
} // llvm namespace
#endif