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| 14 | pmbaty | 1 | //===-- Vectorize.h - Vectorization Transformations -------------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This header file defines prototypes for accessor functions that expose passes |
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| 10 | // in the Vectorize transformations library. |
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| 11 | // |
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| 12 | //===----------------------------------------------------------------------===// |
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| 13 | |||
| 14 | #ifndef LLVM_TRANSFORMS_VECTORIZE_H |
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| 15 | #define LLVM_TRANSFORMS_VECTORIZE_H |
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| 16 | |||
| 17 | namespace llvm { |
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| 18 | class BasicBlock; |
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| 19 | class Pass; |
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| 20 | |||
| 21 | //===----------------------------------------------------------------------===// |
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| 22 | /// Vectorize configuration. |
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| 23 | struct VectorizeConfig { |
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| 24 | //===--------------------------------------------------------------------===// |
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| 25 | // Target architecture related parameters |
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| 26 | |||
| 27 | /// The size of the native vector registers. |
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| 28 | unsigned VectorBits; |
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| 29 | |||
| 30 | /// Vectorize boolean values. |
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| 31 | bool VectorizeBools; |
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| 32 | |||
| 33 | /// Vectorize integer values. |
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| 34 | bool VectorizeInts; |
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| 35 | |||
| 36 | /// Vectorize floating-point values. |
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| 37 | bool VectorizeFloats; |
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| 38 | |||
| 39 | /// Vectorize pointer values. |
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| 40 | bool VectorizePointers; |
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| 41 | |||
| 42 | /// Vectorize casting (conversion) operations. |
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| 43 | bool VectorizeCasts; |
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| 44 | |||
| 45 | /// Vectorize floating-point math intrinsics. |
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| 46 | bool VectorizeMath; |
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| 47 | |||
| 48 | /// Vectorize bit intrinsics. |
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| 49 | bool VectorizeBitManipulations; |
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| 50 | |||
| 51 | /// Vectorize the fused-multiply-add intrinsic. |
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| 52 | bool VectorizeFMA; |
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| 53 | |||
| 54 | /// Vectorize select instructions. |
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| 55 | bool VectorizeSelect; |
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| 56 | |||
| 57 | /// Vectorize comparison instructions. |
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| 58 | bool VectorizeCmp; |
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| 59 | |||
| 60 | /// Vectorize getelementptr instructions. |
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| 61 | bool VectorizeGEP; |
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| 62 | |||
| 63 | /// Vectorize loads and stores. |
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| 64 | bool VectorizeMemOps; |
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| 65 | |||
| 66 | /// Only generate aligned loads and stores. |
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| 67 | bool AlignedOnly; |
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| 68 | |||
| 69 | //===--------------------------------------------------------------------===// |
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| 70 | // Misc parameters |
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| 71 | |||
| 72 | /// The required chain depth for vectorization. |
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| 73 | unsigned ReqChainDepth; |
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| 74 | |||
| 75 | /// The maximum search distance for instruction pairs. |
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| 76 | unsigned SearchLimit; |
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| 77 | |||
| 78 | /// The maximum number of candidate pairs with which to use a full |
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| 79 | /// cycle check. |
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| 80 | unsigned MaxCandPairsForCycleCheck; |
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| 81 | |||
| 82 | /// Replicating one element to a pair breaks the chain. |
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| 83 | bool SplatBreaksChain; |
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| 84 | |||
| 85 | /// The maximum number of pairable instructions per group. |
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| 86 | unsigned MaxInsts; |
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| 87 | |||
| 88 | /// The maximum number of candidate instruction pairs per group. |
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| 89 | unsigned MaxPairs; |
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| 90 | |||
| 91 | /// The maximum number of pairing iterations. |
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| 92 | unsigned MaxIter; |
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| 93 | |||
| 94 | /// Don't try to form odd-length vectors. |
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| 95 | bool Pow2LenOnly; |
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| 96 | |||
| 97 | /// Don't boost the chain-depth contribution of loads and stores. |
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| 98 | bool NoMemOpBoost; |
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| 99 | |||
| 100 | /// Use a fast instruction dependency analysis. |
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| 101 | bool FastDep; |
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| 102 | |||
| 103 | /// Initialize the VectorizeConfig from command line options. |
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| 104 | VectorizeConfig(); |
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| 105 | }; |
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| 106 | |||
| 107 | //===----------------------------------------------------------------------===// |
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| 108 | // |
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| 109 | // LoopVectorize - Create a loop vectorization pass. |
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| 110 | // |
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| 111 | Pass *createLoopVectorizePass(); |
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| 112 | Pass *createLoopVectorizePass(bool InterleaveOnlyWhenForced, |
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| 113 | bool VectorizeOnlyWhenForced); |
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| 114 | |||
| 115 | //===----------------------------------------------------------------------===// |
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| 116 | // |
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| 117 | // SLPVectorizer - Create a bottom-up SLP vectorizer pass. |
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| 118 | // |
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| 119 | Pass *createSLPVectorizerPass(); |
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| 120 | |||
| 121 | //===----------------------------------------------------------------------===// |
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| 122 | /// Vectorize the BasicBlock. |
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| 123 | /// |
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| 124 | /// @param BB The BasicBlock to be vectorized |
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| 125 | /// @param P The current running pass, should require AliasAnalysis and |
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| 126 | /// ScalarEvolution. After the vectorization, AliasAnalysis, |
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| 127 | /// ScalarEvolution and CFG are preserved. |
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| 128 | /// |
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| 129 | /// @return True if the BB is changed, false otherwise. |
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| 130 | /// |
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| 131 | bool vectorizeBasicBlock(Pass *P, BasicBlock &BB, |
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| 132 | const VectorizeConfig &C = VectorizeConfig()); |
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| 133 | |||
| 134 | //===----------------------------------------------------------------------===// |
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| 135 | // |
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| 136 | // LoadStoreVectorizer - Create vector loads and stores, but leave scalar |
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| 137 | // operations. |
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| 138 | // |
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| 139 | Pass *createLoadStoreVectorizerPass(); |
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| 140 | |||
| 141 | //===----------------------------------------------------------------------===// |
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| 142 | // |
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| 143 | // Optimize partial vector operations using target cost models. |
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| 144 | // |
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| 145 | Pass *createVectorCombinePass(); |
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| 146 | |||
| 147 | } // End llvm namespace |
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| 148 | |||
| 149 | #endif |