53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
//===-- X86ShuffleDecodeConstantPool.h - X86 shuffle decode -----*-C++-*---===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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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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#include "llvm/ADT/SmallVector.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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class MVT;
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/// Decode a PSHUFB mask from an IR-level vector constant.
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void DecodePSHUFBMask(const Constant *C, 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,
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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 MatchImm, unsigned ElSize,
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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, SmallVectorImpl<int> &ShuffleMask);
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/// Decode a VPERM W/D/Q/PS/PD mask from an IR-level vector constant.
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void DecodeVPERMVMask(const Constant *C, unsigned ElSize,
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SmallVectorImpl<int> &ShuffleMask);
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/// Decode a VPERMT2 W/D/Q/PS/PD mask from an IR-level vector constant.
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void DecodeVPERMV3Mask(const Constant *C, unsigned ElSize,
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SmallVectorImpl<int> &ShuffleMask);
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} // llvm namespace
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#endif
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