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bef377b7d7
of the BBVectorizePass without using command line option. As pointed out by Hal, we can ask the TargetLoweringInfo for the architecture specific VectorizeConfig to perform vectorizing with architecture specific information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154096 91177308-0d34-0410-b5e6-96231b3b80d8
107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
//===-- Vectorize.h - Vectorization Transformations -------------*- 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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// This header file defines prototypes for accessor functions that expose passes
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// in the Vectorize transformations library.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_VECTORIZE_H
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#define LLVM_TRANSFORMS_VECTORIZE_H
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namespace llvm {
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class BasicBlock;
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class BasicBlockPass;
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//===----------------------------------------------------------------------===//
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/// @brief Vectorize configuration.
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struct VectorizeConfig {
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//===--------------------------------------------------------------------===//
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// Target architecture related parameters
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/// @brief The size of the native vector registers.
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unsigned VectorBits;
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/// @brief Don't try to vectorize integer values.
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bool NoInts;
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/// @brief Don't try to vectorize floating-point values.
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bool NoFloats;
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/// @brief Don't try to vectorize casting (conversion) operations.
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bool NoCasts;
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/// @brief Don't try to vectorize floating-point math intrinsics.
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bool NoMath;
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/// @brief Don't try to vectorize the fused-multiply-add intrinsic.
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bool NoFMA;
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/// @brief Don't try to vectorize loads and stores.
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bool NoMemOps;
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/// @brief Only generate aligned loads and stores.
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bool AlignedOnly;
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//===--------------------------------------------------------------------===//
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// Misc parameters
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/// @brief The required chain depth for vectorization.
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unsigned ReqChainDepth;
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/// @brief The maximum search distance for instruction pairs.
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unsigned SearchLimit;
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/// @brief The maximum number of candidate pairs with which to use a full
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/// cycle check.
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unsigned MaxCandPairsForCycleCheck;
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/// @brief Replicating one element to a pair breaks the chain.
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bool SplatBreaksChain;
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/// @brief The maximum number of pairable instructions per group.
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unsigned MaxInsts;
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/// @brief The maximum number of pairing iterations.
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unsigned MaxIter;
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/// @brief Don't boost the chain-depth contribution of loads and stores.
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bool NoMemOpBoost;
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/// @brief Use a fast instruction dependency analysis.
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bool FastDep;
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/// @brief Initialize the VectorizeConfig from command line options.
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VectorizeConfig();
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};
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//===----------------------------------------------------------------------===//
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//
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// BBVectorize - A basic-block vectorization pass.
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//
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BasicBlockPass *
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createBBVectorizePass(const VectorizeConfig &C = VectorizeConfig());
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//===----------------------------------------------------------------------===//
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/// @brief Vectorize the BasicBlock.
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///
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/// @param BB The BasicBlock to be vectorized
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/// @param P The current running pass, should require AliasAnalysis and
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/// ScalarEvolution. After the vectorization, AliasAnalysis,
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/// ScalarEvolution and CFG are preserved.
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///
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/// @return True if the BB is changed, false otherwise.
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///
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bool vectorizeBasicBlock(Pass *P, BasicBlock &BB,
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const VectorizeConfig &C = VectorizeConfig());
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} // End llvm namespace
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#endif
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