File Manager

003 File Manager

Current Path: /usr/src/contrib/llvm-project/llvm/lib/Analysis

usr / src / contrib / llvm-project / llvm / lib / Analysis /

📁 ..
📄 AliasAnalysis.cpp(33.55 KB)
📄 AliasAnalysisEvaluator.cpp(15.64 KB)
📄 AliasAnalysisSummary.cpp(3.49 KB)
📄 AliasAnalysisSummary.h(10.17 KB)
📄 AliasSetTracker.cpp(25.86 KB)
📄 Analysis.cpp(5.29 KB)
📄 AssumeBundleQueries.cpp(7.96 KB)
📄 AssumptionCache.cpp(10.94 KB)
📄 BasicAliasAnalysis.cpp(85.81 KB)
📄 BlockFrequencyInfo.cpp(12.39 KB)
📄 BlockFrequencyInfoImpl.cpp(28.6 KB)
📄 BranchProbabilityInfo.cpp(43.48 KB)
📄 CFG.cpp(9.9 KB)
📄 CFGPrinter.cpp(11.2 KB)
📄 CFLAndersAliasAnalysis.cpp(33.01 KB)
📄 CFLGraph.h(21.23 KB)
📄 CFLSteensAliasAnalysis.cpp(13.24 KB)
📄 CGSCCPassManager.cpp(31.2 KB)
📄 CallGraph.cpp(12.86 KB)
📄 CallGraphSCCPass.cpp(26.31 KB)
📄 CallPrinter.cpp(9.48 KB)
📄 CaptureTracking.cpp(15.38 KB)
📄 CmpInstAnalysis.cpp(4.63 KB)
📄 CodeMetrics.cpp(6.99 KB)
📄 ConstantFolding.cpp(105.15 KB)
📄 CostModel.cpp(3.87 KB)
📄 DDG.cpp(11.29 KB)
📄 Delinearization.cpp(4.49 KB)
📄 DemandedBits.cpp(16.27 KB)
📄 DependenceAnalysis.cpp(150.78 KB)
📄 DependenceGraphBuilder.cpp(19.24 KB)
📄 DivergenceAnalysis.cpp(15.59 KB)
📄 DomPrinter.cpp(9.67 KB)
📄 DomTreeUpdater.cpp(15.21 KB)
📄 DominanceFrontier.cpp(3.2 KB)
📄 EHPersonalities.cpp(5.89 KB)
📄 GlobalsModRef.cpp(41 KB)
📄 GuardUtils.cpp(3.27 KB)
📄 HeatUtils.cpp(2.85 KB)
📄 IVDescriptors.cpp(42.28 KB)
📄 IVUsers.cpp(16.12 KB)
📄 IndirectCallPromotionAnalysis.cpp(4.33 KB)
📄 InlineAdvisor.cpp(15.28 KB)
📄 InlineCost.cpp(99.47 KB)
📄 InlineFeaturesAnalysis.cpp(1.59 KB)
📄 InlineSizeEstimatorAnalysis.cpp(10.95 KB)
📄 InstCount.cpp(2.45 KB)
📄 InstructionPrecedenceTracking.cpp(4.8 KB)
📄 InstructionSimplify.cpp(216.91 KB)
📄 Interval.cpp(1.78 KB)
📄 IntervalPartition.cpp(4.5 KB)
📄 LazyBlockFrequencyInfo.cpp(2.81 KB)
📄 LazyBranchProbabilityInfo.cpp(2.96 KB)
📄 LazyCallGraph.cpp(67.33 KB)
📄 LazyValueInfo.cpp(76.38 KB)
📄 LegacyDivergenceAnalysis.cpp(14.82 KB)
📄 Lint.cpp(29.07 KB)
📄 Loads.cpp(20.6 KB)
📄 LoopAccessAnalysis.cpp(88.02 KB)
📄 LoopAnalysisManager.cpp(6.6 KB)
📄 LoopCacheAnalysis.cpp(23.53 KB)
📄 LoopInfo.cpp(37.15 KB)
📄 LoopNestAnalysis.cpp(10.62 KB)
📄 LoopPass.cpp(12.89 KB)
📄 LoopUnrollAnalyzer.cpp(7.26 KB)
📄 MLInlineAdvisor.cpp(11.36 KB)
📄 MemDepPrinter.cpp(5.13 KB)
📄 MemDerefPrinter.cpp(2.53 KB)
📄 MemoryBuiltins.cpp(41.14 KB)
📄 MemoryDependenceAnalysis.cpp(69.89 KB)
📄 MemoryLocation.cpp(7.92 KB)
📄 MemorySSA.cpp(90.16 KB)
📄 MemorySSAUpdater.cpp(57.9 KB)
📄 ModuleDebugInfoPrinter.cpp(4.02 KB)
📄 ModuleSummaryAnalysis.cpp(38.13 KB)
📄 MustExecute.cpp(31.18 KB)
📄 ObjCARCAliasAnalysis.cpp(5.81 KB)
📄 ObjCARCAnalysisUtils.cpp(1.07 KB)
📄 ObjCARCInstKind.cpp(23.15 KB)
📄 OptimizationRemarkEmitter.cpp(4.23 KB)
📄 PHITransAddr.cpp(16.05 KB)
📄 PhiValues.cpp(8.4 KB)
📄 PostDominators.cpp(3.59 KB)
📄 ProfileSummaryInfo.cpp(18.07 KB)
📄 PtrUseVisitor.cpp(1.28 KB)
📄 RegionInfo.cpp(6.5 KB)
📄 RegionPass.cpp(9.23 KB)
📄 RegionPrinter.cpp(8.61 KB)
📄 ReleaseModeModelRunner.cpp(2.83 KB)
📄 ScalarEvolution.cpp(475.26 KB)
📄 ScalarEvolutionAliasAnalysis.cpp(5.96 KB)
📄 ScalarEvolutionDivision.cpp(7.51 KB)
📄 ScalarEvolutionNormalization.cpp(4.59 KB)
📄 ScopedNoAliasAA.cpp(7.38 KB)
📄 StackLifetime.cpp(12.22 KB)
📄 StackSafetyAnalysis.cpp(31.81 KB)
📄 StratifiedSets.h(18.67 KB)
📄 SyncDependenceAnalysis.cpp(12.97 KB)
📄 SyntheticCountsUtils.cpp(3.81 KB)
📄 TFUtils.cpp(8.99 KB)
📄 TargetLibraryInfo.cpp(58.98 KB)
📄 TargetTransformInfo.cpp(48.15 KB)
📄 Trace.cpp(1.8 KB)
📄 TypeBasedAliasAnalysis.cpp(26.04 KB)
📄 TypeMetadataUtils.cpp(5.93 KB)
📄 VFABIDemangling.cpp(16.46 KB)
📄 ValueLattice.cpp(1.19 KB)
📄 ValueLatticeUtils.cpp(1.53 KB)
📄 ValueTracking.cpp(243.08 KB)
📄 VectorUtils.cpp(48.57 KB)
📁 models

Editing: Delinearization.cpp

//===---- Delinearization.cpp - MultiDimensional Index Delinearization ----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This implements an analysis pass that tries to delinearize all GEP
// instructions in all loops using the SCEV analysis functionality. This pass is
// only used for testing purposes: if your pass needs delinearization, please
// use the on-demand SCEVAddRecExpr::delinearize() function.
//
//===----------------------------------------------------------------------===//

#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/Passes.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/ScalarEvolutionExpressions.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Type.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"

using namespace llvm;

#define DL_NAME "delinearize"
#define DEBUG_TYPE DL_NAME

namespace {

class Delinearization : public FunctionPass {
  Delinearization(const Delinearization &); // do not implement
protected:
  Function *F;
  LoopInfo *LI;
  ScalarEvolution *SE;

public:
  static char ID; // Pass identification, replacement for typeid

Delinearization() : FunctionPass(ID) {
    initializeDelinearizationPass(*PassRegistry::getPassRegistry());
  }
  bool runOnFunction(Function &F) override;
  void getAnalysisUsage(AnalysisUsage &AU) const override;
  void print(raw_ostream &O, const Module *M = nullptr) const override;
};

} // end anonymous namespace

void Delinearization::getAnalysisUsage(AnalysisUsage &AU) const {
  AU.setPreservesAll();
  AU.addRequired<LoopInfoWrapperPass>();
  AU.addRequired<ScalarEvolutionWrapperPass>();
}

bool Delinearization::runOnFunction(Function &F) {
  this->F = &F;
  SE = &getAnalysis<ScalarEvolutionWrapperPass>().getSE();
  LI = &getAnalysis<LoopInfoWrapperPass>().getLoopInfo();
  return false;
}

void Delinearization::print(raw_ostream &O, const Module *) const {
  O << "Delinearization on function " << F->getName() << ":\n";
  for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I) {
    Instruction *Inst = &(*I);

// Only analyze loads and stores.
    if (!isa<StoreInst>(Inst) && !isa<LoadInst>(Inst) &&
        !isa<GetElementPtrInst>(Inst))
      continue;

const BasicBlock *BB = Inst->getParent();
    // Delinearize the memory access as analyzed in all the surrounding loops.
    // Do not analyze memory accesses outside loops.
    for (Loop *L = LI->getLoopFor(BB); L != nullptr; L = L->getParentLoop()) {
      const SCEV *AccessFn = SE->getSCEVAtScope(getPointerOperand(Inst), L);

const SCEVUnknown *BasePointer =
          dyn_cast<SCEVUnknown>(SE->getPointerBase(AccessFn));
      // Do not delinearize if we cannot find the base pointer.
      if (!BasePointer)
        break;
      AccessFn = SE->getMinusSCEV(AccessFn, BasePointer);

O << "\n";
      O << "Inst:" << *Inst << "\n";
      O << "In Loop with Header: " << L->getHeader()->getName() << "\n";
      O << "AccessFunction: " << *AccessFn << "\n";

SmallVector<const SCEV *, 3> Subscripts, Sizes;
      SE->delinearize(AccessFn, Subscripts, Sizes, SE->getElementSize(Inst));
      if (Subscripts.size() == 0 || Sizes.size() == 0 ||
          Subscripts.size() != Sizes.size()) {
        O << "failed to delinearize\n";
        continue;
      }

O << "Base offset: " << *BasePointer << "\n";
      O << "ArrayDecl[UnknownSize]";
      int Size = Subscripts.size();
      for (int i = 0; i < Size - 1; i++)
        O << "[" << *Sizes[i] << "]";
      O << " with elements of " << *Sizes[Size - 1] << " bytes.\n";

O << "ArrayRef";
      for (int i = 0; i < Size; i++)
        O << "[" << *Subscripts[i] << "]";
      O << "\n";
    }
  }
}

char Delinearization::ID = 0;
static const char delinearization_name[] = "Delinearization";
INITIALIZE_PASS_BEGIN(Delinearization, DL_NAME, delinearization_name, true,
                      true)
INITIALIZE_PASS_DEPENDENCY(LoopInfoWrapperPass)
INITIALIZE_PASS_END(Delinearization, DL_NAME, delinearization_name, true, true)

FunctionPass *llvm::createDelinearizationPass() { return new Delinearization; }

003 File Manager

Editing: Delinearization.cpp

Upload File

Create Folder