44 lines
1.7 KiB
C
44 lines
1.7 KiB
C
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//===-- X86ShuffleDecodeConstantPool.h - X86 shuffle decode -----*-C++-*---===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Define several functions to decode x86 specific shuffle semantics using
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// constants from the constant pool.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_X86_X86SHUFFLEDECODECONSTANTPOOL_H
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#define LLVM_LIB_TARGET_X86_X86SHUFFLEDECODECONSTANTPOOL_H
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//===----------------------------------------------------------------------===//
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// Vector Mask Decoding
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//===----------------------------------------------------------------------===//
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namespace llvm {
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class Constant;
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template <typename T> class SmallVectorImpl;
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/// Decode a PSHUFB mask from an IR-level vector constant.
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void DecodePSHUFBMask(const Constant *C, unsigned Width,
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SmallVectorImpl<int> &ShuffleMask);
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/// Decode a VPERMILP variable mask from an IR-level vector constant.
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void DecodeVPERMILPMask(const Constant *C, unsigned ElSize, unsigned Width,
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SmallVectorImpl<int> &ShuffleMask);
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/// Decode a VPERMILP2 variable mask from an IR-level vector constant.
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void DecodeVPERMIL2PMask(const Constant *C, unsigned M2Z, unsigned ElSize,
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unsigned Width, SmallVectorImpl<int> &ShuffleMask);
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/// Decode a VPPERM variable mask from an IR-level vector constant.
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void DecodeVPPERMMask(const Constant *C, unsigned Width,
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SmallVectorImpl<int> &ShuffleMask);
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} // llvm namespace
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#endif
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