1 //===-- X86ShuffleDecode.h - X86 shuffle decode logic -----------*-C++-*---===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Define several functions to decode x86 specific shuffle semantics into a
11 // generic vector mask.
13 //===----------------------------------------------------------------------===//
15 #ifndef X86_SHUFFLE_DECODE_H
16 #define X86_SHUFFLE_DECODE_H
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/CodeGen/ValueTypes.h"
21 //===----------------------------------------------------------------------===//
22 // Vector Mask Decoding
23 //===----------------------------------------------------------------------===//
30 void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<unsigned> &ShuffleMask);
33 void DecodeMOVHLPSMask(unsigned NElts,
34 SmallVectorImpl<unsigned> &ShuffleMask);
37 void DecodeMOVLHPSMask(unsigned NElts,
38 SmallVectorImpl<unsigned> &ShuffleMask);
40 void DecodePSHUFMask(unsigned NElts, unsigned Imm,
41 SmallVectorImpl<unsigned> &ShuffleMask);
43 void DecodePSHUFHWMask(unsigned Imm,
44 SmallVectorImpl<unsigned> &ShuffleMask);
46 void DecodePSHUFLWMask(unsigned Imm,
47 SmallVectorImpl<unsigned> &ShuffleMask);
49 void DecodePUNPCKLBWMask(unsigned NElts,
50 SmallVectorImpl<unsigned> &ShuffleMask);
52 void DecodePUNPCKLWDMask(unsigned NElts,
53 SmallVectorImpl<unsigned> &ShuffleMask);
55 void DecodePUNPCKLDQMask(unsigned NElts,
56 SmallVectorImpl<unsigned> &ShuffleMask);
58 void DecodePUNPCKLQDQMask(unsigned NElts,
59 SmallVectorImpl<unsigned> &ShuffleMask);
61 void DecodePUNPCKLMask(EVT VT,
62 SmallVectorImpl<unsigned> &ShuffleMask);
64 void DecodePUNPCKHMask(unsigned NElts,
65 SmallVectorImpl<unsigned> &ShuffleMask);
67 void DecodeSHUFPSMask(unsigned NElts, unsigned Imm,
68 SmallVectorImpl<unsigned> &ShuffleMask);
70 void DecodeUNPCKHPSMask(unsigned NElts,
71 SmallVectorImpl<unsigned> &ShuffleMask);
73 void DecodeUNPCKHPDMask(unsigned NElts,
74 SmallVectorImpl<unsigned> &ShuffleMask);
76 /// DecodeUNPCKHPMask - This decodes the shuffle masks for unpckhps/unpckhpd
77 /// etc. VT indicates the type of the vector allowing it to handle different
78 /// datatypes and vector widths.
79 void DecodeUNPCKHPMask(EVT VT, SmallVectorImpl<unsigned> &ShuffleMask);
81 void DecodeUNPCKLPSMask(unsigned NElts,
82 SmallVectorImpl<unsigned> &ShuffleMask);
84 void DecodeUNPCKLPDMask(unsigned NElts,
85 SmallVectorImpl<unsigned> &ShuffleMask);
87 /// DecodeUNPCKLPMask - This decodes the shuffle masks for unpcklps/unpcklpd
88 /// etc. VT indicates the type of the vector allowing it to handle different
89 /// datatypes and vector widths.
90 void DecodeUNPCKLPMask(EVT VT, SmallVectorImpl<unsigned> &ShuffleMask);
93 // DecodeVPERMILPSMask - Decodes VPERMILPS permutes for any 128-bit 32-bit
94 // elements. For 256-bit vectors, it's considered as two 128 lanes, the
95 // referenced elements can't cross lanes and the mask of the first lane must
96 // be the same of the second.
97 void DecodeVPERMILPSMask(unsigned NElts, unsigned Imm,
98 SmallVectorImpl<unsigned> &ShuffleMask);
100 // DecodeVPERMILPDMask - Decodes VPERMILPD permutes for any 128-bit 64-bit
101 // elements. For 256-bit vectors, it's considered as two 128 lanes, the
102 // referenced elements can't cross lanes but the mask of the first lane can
103 // be the different of the second (not like VPERMILPS).
104 void DecodeVPERMILPDMask(unsigned NElts, unsigned Imm,
105 SmallVectorImpl<unsigned> &ShuffleMask);
107 void DecodeVPERM2F128Mask(unsigned Imm,
108 SmallVectorImpl<unsigned> &ShuffleMask);
109 void DecodeVPERM2F128Mask(EVT VT, unsigned Imm,
110 SmallVectorImpl<unsigned> &ShuffleMask);