LLVM  6.0.0svn
X86ShuffleDecodeConstantPool.h
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1 //===-- X86ShuffleDecodeConstantPool.h - X86 shuffle decode -----*-C++-*---===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // Define several functions to decode x86 specific shuffle semantics using
11 // constants from the constant pool.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_LIB_TARGET_X86_X86SHUFFLEDECODECONSTANTPOOL_H
16 #define LLVM_LIB_TARGET_X86_X86SHUFFLEDECODECONSTANTPOOL_H
17 
18 #include "llvm/ADT/SmallVector.h"
19 
20 //===----------------------------------------------------------------------===//
21 // Vector Mask Decoding
22 //===----------------------------------------------------------------------===//
23 
24 namespace llvm {
25 class Constant;
26 class MVT;
27 
28 /// Decode a PSHUFB mask from an IR-level vector constant.
29 void DecodePSHUFBMask(const Constant *C, SmallVectorImpl<int> &ShuffleMask);
30 
31 /// Decode a VPERMILP variable mask from an IR-level vector constant.
32 void DecodeVPERMILPMask(const Constant *C, unsigned ElSize,
33  SmallVectorImpl<int> &ShuffleMask);
34 
35 /// Decode a VPERMILP2 variable mask from an IR-level vector constant.
36 void DecodeVPERMIL2PMask(const Constant *C, unsigned MatchImm, unsigned ElSize,
37  SmallVectorImpl<int> &ShuffleMask);
38 
39 /// Decode a VPPERM variable mask from an IR-level vector constant.
40 void DecodeVPPERMMask(const Constant *C, SmallVectorImpl<int> &ShuffleMask);
41 
42 /// Decode a VPERM W/D/Q/PS/PD mask from an IR-level vector constant.
43 void DecodeVPERMVMask(const Constant *C, unsigned ElSize,
44  SmallVectorImpl<int> &ShuffleMask);
45 
46 /// Decode a VPERMT2 W/D/Q/PS/PD mask from an IR-level vector constant.
47 void DecodeVPERMV3Mask(const Constant *C, unsigned ElSize,
48  SmallVectorImpl<int> &ShuffleMask);
49 
50 } // llvm namespace
51 
52 #endif
uint64_t CallInst * C
void DecodeVPERMILPMask(MVT VT, ArrayRef< uint64_t > RawMask, SmallVectorImpl< int > &ShuffleMask)
Decode a VPERMILPD/VPERMILPS variable mask from a raw array of constants.
Compute iterated dominance frontiers using a linear time algorithm.
Definition: AllocatorList.h:24
void DecodeVPPERMMask(ArrayRef< uint64_t > RawMask, SmallVectorImpl< int > &ShuffleMask)
Decode a VPPERM mask from a raw array of constants such as from BUILD_VECTOR.
void DecodeVPERMVMask(ArrayRef< uint64_t > RawMask, SmallVectorImpl< int > &ShuffleMask)
Decode a VPERM W/D/Q/PS/PD mask from a raw array of constants.
void DecodeVPERMIL2PMask(MVT VT, unsigned M2Z, ArrayRef< uint64_t > RawMask, SmallVectorImpl< int > &ShuffleMask)
Decode a VPERMIL2PD/VPERMIL2PS variable mask from a raw array of constants.
void DecodeVPERMV3Mask(ArrayRef< uint64_t > RawMask, SmallVectorImpl< int > &ShuffleMask)
Decode a VPERMT2 W/D/Q/PS/PD mask from a raw array of constants.
void DecodePSHUFBMask(ArrayRef< uint64_t > RawMask, SmallVectorImpl< int > &ShuffleMask)
Decode a PSHUFB mask from a raw array of constants such as from BUILD_VECTOR.