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2d100ca13c
vectors. It operates on 128-bit elements instead of regular scalar types. Recognize shuffles that are suitable for VPERM2F128 and teach the x86 legalizer how to handle them. llvm-svn: 137519
108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
//===-- X86ShuffleDecode.h - X86 shuffle decode logic -----------*-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 into a
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// generic vector mask.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86_SHUFFLE_DECODE_H
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#define X86_SHUFFLE_DECODE_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/CodeGen/ValueTypes.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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enum {
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SM_SentinelZero = ~0U
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};
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void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<unsigned> &ShuffleMask);
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// <3,1> or <6,7,2,3>
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void DecodeMOVHLPSMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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// <0,2> or <0,1,4,5>
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void DecodeMOVLHPSMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePSHUFMask(unsigned NElts, unsigned Imm,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePSHUFHWMask(unsigned Imm,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePSHUFLWMask(unsigned Imm,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePUNPCKLBWMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePUNPCKLWDMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePUNPCKLDQMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePUNPCKLQDQMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePUNPCKLMask(EVT VT,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodePUNPCKHMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodeSHUFPSMask(unsigned NElts, unsigned Imm,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodeUNPCKHPMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodeUNPCKLPSMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodeUNPCKLPDMask(unsigned NElts,
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SmallVectorImpl<unsigned> &ShuffleMask);
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/// DecodeUNPCKLPMask - This decodes the shuffle masks for unpcklps/unpcklpd
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/// etc. VT indicates the type of the vector allowing it to handle different
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/// datatypes and vector widths.
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void DecodeUNPCKLPMask(EVT VT,
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SmallVectorImpl<unsigned> &ShuffleMask);
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// DecodeVPERMILPSMask - Decodes VPERMILPS permutes for any 128-bit 32-bit
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// elements. For 256-bit vectors, it's considered as two 128 lanes, the
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// referenced elements can't cross lanes and the mask of the first lane must
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// be the same of the second.
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void DecodeVPERMILPSMask(unsigned NElts, unsigned Imm,
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SmallVectorImpl<unsigned> &ShuffleMask);
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// DecodeVPERMILPDMask - Decodes VPERMILPD permutes for any 128-bit 64-bit
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// elements. For 256-bit vectors, it's considered as two 128 lanes, the
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// referenced elements can't cross lanes but the mask of the first lane can
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// be the different of the second (not like VPERMILPS).
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void DecodeVPERMILPDMask(unsigned NElts, unsigned Imm,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodeVPERM2F128Mask(unsigned Imm,
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SmallVectorImpl<unsigned> &ShuffleMask);
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void DecodeVPERM2F128Mask(EVT VT, unsigned Imm,
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SmallVectorImpl<unsigned> &ShuffleMask);
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} // llvm namespace
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#endif
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