doxygen/X86ShuffleDecodeConstantPool_8h_source.html

//===-- 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

C
static GCRegistry::Add< ShadowStackGC > C("shadow-stack", "Very portable GC for uncooperative code generators")

llvm::Constant
This is an important base class in LLVM.
Definition Constant.h:43

llvm::SmallVectorImpl
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
Definition SmallVector.h:592

llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition FunctionInfo.h:25

llvm::DecodeVPERMILPMask
void DecodeVPERMILPMask(unsigned NumElts, unsigned ScalarBits, ArrayRef< uint64_t > RawMask, const APInt &UndefElts, SmallVectorImpl< int > &ShuffleMask)
Decode a VPERMILPD/VPERMILPS variable mask from a raw array of constants.
Definition X86ShuffleDecode.cpp:477

llvm::DecodeVPERMIL2PMask
void DecodeVPERMIL2PMask(unsigned NumElts, unsigned ScalarBits, unsigned M2Z, ArrayRef< uint64_t > RawMask, const APInt &UndefElts, SmallVectorImpl< int > &ShuffleMask)
Decode a VPERMIL2PD/VPERMIL2PS variable mask from a raw array of constants.
Definition X86ShuffleDecode.cpp:499

llvm::DecodeVPPERMMask
void DecodeVPPERMMask(ArrayRef< uint64_t > RawMask, const APInt &UndefElts, SmallVectorImpl< int > &ShuffleMask)
Decode a VPPERM mask from a raw array of constants such as from BUILD_VECTOR.
Definition X86ShuffleDecode.cpp:325

llvm::DecodePSHUFBMask
void DecodePSHUFBMask(ArrayRef< uint64_t > RawMask, const APInt &UndefElts, SmallVectorImpl< int > &ShuffleMask)
Decode a PSHUFB mask from a raw array of constants such as from BUILD_VECTOR.
Definition X86ShuffleDecode.cpp:293