[llvm] r328980 - [SLP] Fix PR36481: vectorize reassociated instructions.

Chandler Carruth via llvm-commits llvm-commits at lists.llvm.org
Mon Apr 2 22:30:38 PDT 2018


FIxed this an some other issues in r329046.

On Mon, Apr 2, 2018 at 8:13 PM Chandler Carruth <chandlerc at gmail.com> wrote:

> This appears to print to stderr unconditionally in !NDEBUG builds? =[ It's
> causing lots of full-screen for me.
>
> If you or someone else don't get to fixing this soon, I guess I will.
>
> On Mon, Apr 2, 2018 at 7:54 AM Alexey Bataev via llvm-commits <
> llvm-commits at lists.llvm.org> wrote:
>
>> Author: abataev
>> Date: Mon Apr  2 07:51:37 2018
>> New Revision: 328980
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=328980&view=rev
>> Log:
>> [SLP] Fix PR36481: vectorize reassociated instructions.
>>
>> Summary:
>> If the load/extractelement/extractvalue instructions are not originally
>> consecutive, the SLP vectorizer is unable to vectorize them. Patch
>> allows reordering of such instructions.
>>
>> Reviewers: RKSimon, spatel, hfinkel, mkuper, Ayal, ashahid
>>
>> Subscribers: llvm-commits
>>
>> Differential Revision: https://reviews.llvm.org/D43776
>>
>> Modified:
>>     llvm/trunk/include/llvm/Analysis/LoopAccessAnalysis.h
>>     llvm/trunk/lib/Analysis/LoopAccessAnalysis.cpp
>>     llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp
>>
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/external_user_jumbled_load.ll
>>     llvm/trunk/test/Transforms/SLPVectorizer/X86/extract.ll
>>     llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-multiuse.ll
>>
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-shuffle-placement.ll
>>
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-used-in-phi.ll
>>     llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load.ll
>>     llvm/trunk/test/Transforms/SLPVectorizer/X86/reassociated-loads.ll
>>     llvm/trunk/test/Transforms/SLPVectorizer/X86/store-jumbled.ll
>>
>> Modified: llvm/trunk/include/llvm/Analysis/LoopAccessAnalysis.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Analysis/LoopAccessAnalysis.h?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/include/llvm/Analysis/LoopAccessAnalysis.h (original)
>> +++ llvm/trunk/include/llvm/Analysis/LoopAccessAnalysis.h Mon Apr  2
>> 07:51:37 2018
>> @@ -667,6 +667,20 @@ int64_t getPtrStride(PredicatedScalarEvo
>>                       const ValueToValueMap &StridesMap =
>> ValueToValueMap(),
>>                       bool Assume = false, bool ShouldCheckWrap = true);
>>
>> +/// \brief Attempt to sort the pointers in \p VL and return the sorted
>> indices
>> +/// in \p SortedIndices, if reordering is required.
>> +///
>> +/// Returns 'true' if sorting is legal, otherwise returns 'false'.
>> +///
>> +/// For example, for a given \p VL of memory accesses in program order,
>> a[i+4],
>> +/// a[i+0], a[i+1] and a[i+7], this function will sort the \p VL and
>> save the
>> +/// sorted indices in \p SortedIndices as a[i+0], a[i+1], a[i+4], a[i+7]
>> and
>> +/// saves the mask for actual memory accesses in program order in
>> +/// \p SortedIndices as <1,2,0,3>
>> +bool sortPtrAccesses(ArrayRef<Value *> VL, const DataLayout &DL,
>> +                     ScalarEvolution &SE,
>> +                     SmallVectorImpl<unsigned> &SortedIndices);
>> +
>>  /// \brief Returns true if the memory operations \p A and \p B are
>> consecutive.
>>  /// This is a simple API that does not depend on the analysis pass.
>>  bool isConsecutiveAccess(Value *A, Value *B, const DataLayout &DL,
>>
>> Modified: llvm/trunk/lib/Analysis/LoopAccessAnalysis.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/LoopAccessAnalysis.cpp?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/lib/Analysis/LoopAccessAnalysis.cpp (original)
>> +++ llvm/trunk/lib/Analysis/LoopAccessAnalysis.cpp Mon Apr  2 07:51:37
>> 2018
>> @@ -1087,6 +1087,67 @@ int64_t llvm::getPtrStride(PredicatedSca
>>    return Stride;
>>  }
>>
>> +bool llvm::sortPtrAccesses(ArrayRef<Value *> VL, const DataLayout &DL,
>> +                           ScalarEvolution &SE,
>> +                           SmallVectorImpl<unsigned> &SortedIndices) {
>> +  assert(llvm::all_of(
>> +             VL, [](const Value *V) { return
>> V->getType()->isPointerTy(); }) &&
>> +         "Expected list of pointer operands.");
>> +  SmallVector<std::pair<int64_t, Value *>, 4> OffValPairs;
>> +  OffValPairs.reserve(VL.size());
>> +
>> +  // Walk over the pointers, and map each of them to an offset relative
>> to
>> +  // first pointer in the array.
>> +  Value *Ptr0 = VL[0];
>> +  const SCEV *Scev0 = SE.getSCEV(Ptr0);
>> +  Value *Obj0 = GetUnderlyingObject(Ptr0, DL);
>> +
>> +  llvm::SmallSet<int64_t, 4> Offsets;
>> +  for (auto *Ptr : VL) {
>> +    // TODO: Outline this code as a special, more time consuming,
>> version of
>> +    // computeConstantDifference() function.
>> +    if (Ptr->getType()->getPointerAddressSpace() !=
>> +        Ptr0->getType()->getPointerAddressSpace())
>> +      return false;
>> +    // If a pointer refers to a different underlying object, bail - the
>> +    // pointers are by definition incomparable.
>> +    Value *CurrObj = GetUnderlyingObject(Ptr, DL);
>> +    if (CurrObj != Obj0)
>> +      return false;
>> +
>> +    const SCEV *Scev = SE.getSCEV(Ptr);
>> +    const auto *Diff = dyn_cast<SCEVConstant>(SE.getMinusSCEV(Scev,
>> Scev0));
>> +    // The pointers may not have a constant offset from each other, or
>> SCEV
>> +    // may just not be smart enough to figure out they do. Regardless,
>> +    // there's nothing we can do.
>> +    if (!Diff)
>> +      return false;
>> +
>> +    // Check if the pointer with the same offset is found.
>> +    int64_t Offset = Diff->getAPInt().getSExtValue();
>> +    if (!Offsets.insert(Offset).second)
>> +      return false;
>> +    OffValPairs.emplace_back(Offset, Ptr);
>> +  }
>> +  SortedIndices.clear();
>> +  SortedIndices.resize(VL.size());
>> +  std::iota(SortedIndices.begin(), SortedIndices.end(), 0);
>> +
>> +  // Sort the memory accesses and keep the order of their uses in
>> UseOrder.
>> +  std::stable_sort(SortedIndices.begin(), SortedIndices.end(),
>> +                   [&OffValPairs](unsigned Left, unsigned Right) {
>> +                     return OffValPairs[Left].first <
>> OffValPairs[Right].first;
>> +                   });
>> +
>> +  // Check if the order is consecutive already.
>> +  if (llvm::all_of(SortedIndices, [&SortedIndices](const unsigned I) {
>> +        return I == SortedIndices[I];
>> +      }))
>> +    SortedIndices.clear();
>> +
>> +  return true;
>> +}
>> +
>>  /// Take the address space operand from the Load/Store instruction.
>>  /// Returns -1 if this is not a valid Load/Store instruction.
>>  static unsigned getAddressSpaceOperand(Value *I) {
>>
>> Modified: llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp (original)
>> +++ llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp Mon Apr  2
>> 07:51:37 2018
>> @@ -452,16 +452,21 @@ static bool allSameType(ArrayRef<Value *
>>  }
>>
>>  /// \returns True if Extract{Value,Element} instruction extracts element
>> Idx.
>> -static bool matchExtractIndex(Instruction *E, unsigned Idx, unsigned
>> Opcode) {
>> -  assert(Opcode == Instruction::ExtractElement ||
>> -         Opcode == Instruction::ExtractValue);
>> +static Optional<unsigned> getExtractIndex(Instruction *E) {
>> +  unsigned Opcode = E->getOpcode();
>> +  assert((Opcode == Instruction::ExtractElement ||
>> +          Opcode == Instruction::ExtractValue) &&
>> +         "Expected extractelement or extractvalue instruction.");
>>    if (Opcode == Instruction::ExtractElement) {
>> -    ConstantInt *CI = dyn_cast<ConstantInt>(E->getOperand(1));
>> -    return CI && CI->getZExtValue() == Idx;
>> -  } else {
>> -    ExtractValueInst *EI = cast<ExtractValueInst>(E);
>> -    return EI->getNumIndices() == 1 && *EI->idx_begin() == Idx;
>> -  }
>> +    auto *CI = dyn_cast<ConstantInt>(E->getOperand(1));
>> +    if (!CI)
>> +      return None;
>> +    return CI->getZExtValue();
>> +  }
>> +  ExtractValueInst *EI = cast<ExtractValueInst>(E);
>> +  if (EI->getNumIndices() != 1)
>> +    return None;
>> +  return *EI->idx_begin();
>>  }
>>
>>  /// \returns True if in-tree use also needs extract. This refers to
>> @@ -586,6 +591,7 @@ public:
>>      MustGather.clear();
>>      ExternalUses.clear();
>>      NumOpsWantToKeepOrder.clear();
>> +    NumOpsWantToKeepOriginalOrder = 0;
>>      for (auto &Iter : BlocksSchedules) {
>>        BlockScheduling *BS = Iter.second.get();
>>        BS->clear();
>> @@ -598,14 +604,18 @@ public:
>>    /// \brief Perform LICM and CSE on the newly generated gather
>> sequences.
>>    void optimizeGatherSequence();
>>
>> -  /// \returns true if it is beneficial to reverse the vector order.
>> -  bool shouldReorder() const {
>> -    return std::accumulate(
>> -               NumOpsWantToKeepOrder.begin(),
>> NumOpsWantToKeepOrder.end(), 0,
>> -               [](int Val1,
>> -                  const decltype(NumOpsWantToKeepOrder)::value_type
>> &Val2) {
>> -                 return Val1 + (Val2.second < 0 ? 1 : -1);
>> -               }) > 0;
>> +  /// \returns The best order of instructions for vectorization.
>> +  Optional<ArrayRef<unsigned>> bestOrder() const {
>> +    auto I = std::max_element(
>> +        NumOpsWantToKeepOrder.begin(), NumOpsWantToKeepOrder.end(),
>> +        [](const decltype(NumOpsWantToKeepOrder)::value_type &D1,
>> +           const decltype(NumOpsWantToKeepOrder)::value_type &D2) {
>> +          return D1.second < D2.second;
>> +        });
>> +    if (I == NumOpsWantToKeepOrder.end() || I->getSecond() <=
>> NumOpsWantToKeepOriginalOrder)
>> +      return None;
>> +
>> +    return makeArrayRef(I->getFirst());
>>    }
>>
>>    /// \return The vector element size in bits to use when vectorizing the
>> @@ -652,9 +662,13 @@ private:
>>    /// This is the recursive part of buildTree.
>>    void buildTree_rec(ArrayRef<Value *> Roots, unsigned Depth, int);
>>
>> -  /// \returns True if the ExtractElement/ExtractValue instructions in
>> VL can
>> -  /// be vectorized to use the original vector (or aggregate "bitcast"
>> to a vector).
>> -  bool canReuseExtract(ArrayRef<Value *> VL, Value *OpValue) const;
>> +  /// \returns true if the ExtractElement/ExtractValue instructions in
>> \p VL can
>> +  /// be vectorized to use the original vector (or aggregate "bitcast"
>> to a
>> +  /// vector) and sets \p CurrentOrder to the identity permutation;
>> otherwise
>> +  /// returns false, setting \p CurrentOrder to either an empty vector
>> or a
>> +  /// non-identity permutation that allows to reuse extract instructions.
>> +  bool canReuseExtract(ArrayRef<Value *> VL, Value *OpValue,
>> +                       SmallVectorImpl<unsigned> &CurrentOrder) const;
>>
>>    /// Vectorize a single entry in the tree.
>>    Value *vectorizeTree(TreeEntry *E);
>> @@ -718,6 +732,9 @@ private:
>>      /// Does this sequence require some shuffling?
>>      SmallVector<unsigned, 4> ReuseShuffleIndices;
>>
>> +    /// Does this entry require reordering?
>> +    ArrayRef<unsigned> ReorderIndices;
>> +
>>      /// Points back to the VectorizableTree.
>>      ///
>>      /// Only used for Graphviz right now.  Unfortunately
>> GraphTrait::NodeRef has
>> @@ -733,7 +750,8 @@ private:
>>
>>    /// Create a new VectorizableTree entry.
>>    void newTreeEntry(ArrayRef<Value *> VL, bool Vectorized, int
>> &UserTreeIdx,
>> -                    ArrayRef<unsigned> ReuseShuffleIndices = None) {
>> +                    ArrayRef<unsigned> ReuseShuffleIndices = None,
>> +                    ArrayRef<unsigned> ReorderIndices = None) {
>>      VectorizableTree.emplace_back(VectorizableTree);
>>      int idx = VectorizableTree.size() - 1;
>>      TreeEntry *Last = &VectorizableTree[idx];
>> @@ -741,6 +759,7 @@ private:
>>      Last->NeedToGather = !Vectorized;
>>      Last->ReuseShuffleIndices.append(ReuseShuffleIndices.begin(),
>>                                       ReuseShuffleIndices.end());
>> +    Last->ReorderIndices = ReorderIndices;
>>      if (Vectorized) {
>>        for (int i = 0, e = VL.size(); i != e; ++i) {
>>          assert(!getTreeEntry(VL[i]) && "Scalar already in tree!");
>> @@ -1202,10 +1221,38 @@ private:
>>    /// List of users to ignore during scheduling and that don't need
>> extracting.
>>    ArrayRef<Value *> UserIgnoreList;
>>
>> -  /// Number of operation bundles that contain consecutive operations -
>> number
>> -  /// of operation bundles that contain consecutive operations in
>> reversed
>> -  /// order.
>> -  DenseMap<unsigned, int> NumOpsWantToKeepOrder;
>> +  using OrdersType = SmallVector<unsigned, 4>;
>> +  /// A DenseMapInfo implementation for holding DenseMaps and DenseSets
>> of
>> +  /// sorted SmallVectors of unsigned.
>> +  struct OrdersTypeDenseMapInfo {
>> +    static OrdersType getEmptyKey() {
>> +      OrdersType V;
>> +      V.push_back(~1U);
>> +      return V;
>> +    }
>> +
>> +    static OrdersType getTombstoneKey() {
>> +      OrdersType V;
>> +      V.push_back(~2U);
>> +      return V;
>> +    }
>> +
>> +    static unsigned getHashValue(const OrdersType &V) {
>> +      return static_cast<unsigned>(hash_combine_range(V.begin(),
>> V.end()));
>> +    }
>> +
>> +    static bool isEqual(const OrdersType &LHS, const OrdersType &RHS) {
>> +      return LHS == RHS;
>> +    }
>> +  };
>> +
>> +  /// Contains orders of operations along with the number of bundles
>> that have
>> +  /// operations in this order. It stores only those orders that require
>> +  /// reordering, if reordering is not required it is counted using \a
>> +  /// NumOpsWantToKeepOriginalOrder.
>> +  DenseMap<OrdersType, unsigned, OrdersTypeDenseMapInfo>
>> NumOpsWantToKeepOrder;
>> +  /// Number of bundles that do not require reordering.
>> +  unsigned NumOpsWantToKeepOriginalOrder = 0;
>>
>>    // Analysis and block reference.
>>    Function *F;
>> @@ -1557,17 +1604,35 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>>      }
>>      case Instruction::ExtractValue:
>>      case Instruction::ExtractElement: {
>> -      bool Reuse = canReuseExtract(VL, VL0);
>> +      OrdersType CurrentOrder;
>> +      bool Reuse = canReuseExtract(VL, VL0, CurrentOrder);
>>        if (Reuse) {
>>          DEBUG(dbgs() << "SLP: Reusing or shuffling extract sequence.\n");
>> -        ++NumOpsWantToKeepOrder[S.Opcode];
>> -      } else {
>> -        SmallVector<Value *, 4> ReverseVL(VL.rbegin(), VL.rend());
>> -        if (canReuseExtract(ReverseVL, VL0))
>> -          --NumOpsWantToKeepOrder[S.Opcode];
>> -        BS.cancelScheduling(VL, VL0);
>> +        ++NumOpsWantToKeepOriginalOrder;
>> +        newTreeEntry(VL, /*Vectorized=*/true, UserTreeIdx,
>> +                     ReuseShuffleIndicies);
>> +        return;
>>        }
>> -      newTreeEntry(VL, Reuse, UserTreeIdx, ReuseShuffleIndicies);
>> +      if (!CurrentOrder.empty()) {
>> +#ifndef NDEBUG
>> +        dbgs() << "SLP: Reusing or shuffling of reordered extract
>> sequence "
>> +                  "with order";
>> +        for (unsigned Idx : CurrentOrder)
>> +          dbgs() << " " << Idx;
>> +        dbgs() << "\n";
>> +#endif // NDEBUG
>> +        // Insert new order with initial value 0, if it does not exist,
>> +        // otherwise return the iterator to the existing one.
>> +        auto StoredCurrentOrderAndNum =
>> +            NumOpsWantToKeepOrder.try_emplace(CurrentOrder).first;
>> +        ++StoredCurrentOrderAndNum->getSecond();
>> +        newTreeEntry(VL, /*Vectorized=*/true, UserTreeIdx,
>> ReuseShuffleIndicies,
>> +                     StoredCurrentOrderAndNum->getFirst());
>> +        return;
>> +      }
>> +      DEBUG(dbgs() << "SLP: Gather extract sequence.\n");
>> +      newTreeEntry(VL, /*Vectorized=*/false, UserTreeIdx,
>> ReuseShuffleIndicies);
>> +      BS.cancelScheduling(VL, VL0);
>>        return;
>>      }
>>      case Instruction::Load: {
>> @@ -1589,51 +1654,55 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>>
>>        // Make sure all loads in the bundle are simple - we can't
>> vectorize
>>        // atomic or volatile loads.
>> -      for (unsigned i = 0, e = VL.size() - 1; i < e; ++i) {
>> -        LoadInst *L = cast<LoadInst>(VL[i]);
>> +      SmallVector<Value *, 4> PointerOps(VL.size());
>> +      auto POIter = PointerOps.begin();
>> +      for (Value *V : VL) {
>> +        auto *L = cast<LoadInst>(V);
>>          if (!L->isSimple()) {
>>            BS.cancelScheduling(VL, VL0);
>>            newTreeEntry(VL, false, UserTreeIdx, ReuseShuffleIndicies);
>>            DEBUG(dbgs() << "SLP: Gathering non-simple loads.\n");
>>            return;
>>          }
>> +        *POIter = L->getPointerOperand();
>> +        ++POIter;
>>        }
>>
>> -      // Check if the loads are consecutive, reversed, or neither.
>> -      // TODO: What we really want is to sort the loads, but for now,
>> check
>> -      // the two likely directions.
>> -      bool Consecutive = true;
>> -      bool ReverseConsecutive = true;
>> -      for (unsigned i = 0, e = VL.size() - 1; i < e; ++i) {
>> -        if (!isConsecutiveAccess(VL[i], VL[i + 1], *DL, *SE)) {
>> -          Consecutive = false;
>> -          break;
>> +      OrdersType CurrentOrder;
>> +      // Check the order of pointer operands.
>> +      if (llvm::sortPtrAccesses(PointerOps, *DL, *SE, CurrentOrder)) {
>> +        Value *Ptr0;
>> +        Value *PtrN;
>> +        if (CurrentOrder.empty()) {
>> +          Ptr0 = PointerOps.front();
>> +          PtrN = PointerOps.back();
>>          } else {
>> -          ReverseConsecutive = false;
>> +          Ptr0 = PointerOps[CurrentOrder.front()];
>> +          PtrN = PointerOps[CurrentOrder.back()];
>>          }
>> -      }
>> -
>> -      if (Consecutive) {
>> -        ++NumOpsWantToKeepOrder[S.Opcode];
>> -        newTreeEntry(VL, true, UserTreeIdx, ReuseShuffleIndicies);
>> -        DEBUG(dbgs() << "SLP: added a vector of loads.\n");
>> -        return;
>> -      }
>> -
>> -      // If none of the load pairs were consecutive when checked in
>> order,
>> -      // check the reverse order.
>> -      if (ReverseConsecutive)
>> -        for (unsigned i = VL.size() - 1; i > 0; --i)
>> -          if (!isConsecutiveAccess(VL[i], VL[i - 1], *DL, *SE)) {
>> -            ReverseConsecutive = false;
>> -            break;
>> +        const SCEV *Scev0 = SE->getSCEV(Ptr0);
>> +        const SCEV *ScevN = SE->getSCEV(PtrN);
>> +        const auto *Diff =
>> +            dyn_cast<SCEVConstant>(SE->getMinusSCEV(ScevN, Scev0));
>> +        uint64_t Size = DL->getTypeAllocSize(ScalarTy);
>> +        // Check that the sorted loads are consecutive.
>> +        if (Diff && Diff->getAPInt().getZExtValue() == (VL.size() - 1) *
>> Size) {
>> +          if (CurrentOrder.empty()) {
>> +            // Original loads are consecutive and does not require
>> reordering.
>> +            ++NumOpsWantToKeepOriginalOrder;
>> +            newTreeEntry(VL, /*Vectorized=*/true, UserTreeIdx,
>> +                         ReuseShuffleIndicies);
>> +            DEBUG(dbgs() << "SLP: added a vector of loads.\n");
>> +          } else {
>> +            // Need to reorder.
>> +            auto I =
>> NumOpsWantToKeepOrder.try_emplace(CurrentOrder).first;
>> +            ++I->getSecond();
>> +            newTreeEntry(VL, /*Vectorized=*/true, UserTreeIdx,
>> +                         ReuseShuffleIndicies, I->getFirst());
>> +            DEBUG(dbgs() << "SLP: added a vector of jumbled loads.\n");
>>            }
>> -
>> -      if (ReverseConsecutive) {
>> -        --NumOpsWantToKeepOrder[S.Opcode];
>> -        newTreeEntry(VL, true, UserTreeIdx, ReuseShuffleIndicies);
>> -        DEBUG(dbgs() << "SLP: added a vector of reversed loads.\n");
>> -        return;
>> +          return;
>> +        }
>>        }
>>
>>        DEBUG(dbgs() << "SLP: Gathering non-consecutive loads.\n");
>> @@ -1944,7 +2013,8 @@ unsigned BoUpSLP::canMapToVector(Type *T
>>    return N;
>>  }
>>
>> -bool BoUpSLP::canReuseExtract(ArrayRef<Value *> VL, Value *OpValue)
>> const {
>> +bool BoUpSLP::canReuseExtract(ArrayRef<Value *> VL, Value *OpValue,
>> +                              SmallVectorImpl<unsigned> &CurrentOrder)
>> const {
>>    Instruction *E0 = cast<Instruction>(OpValue);
>>    assert(E0->getOpcode() == Instruction::ExtractElement ||
>>           E0->getOpcode() == Instruction::ExtractValue);
>> @@ -1953,6 +2023,8 @@ bool BoUpSLP::canReuseExtract(ArrayRef<V
>>    // correct offset.
>>    Value *Vec = E0->getOperand(0);
>>
>> +  CurrentOrder.clear();
>> +
>>    // We have to extract from a vector/aggregate with the same number of
>> elements.
>>    unsigned NElts;
>>    if (E0->getOpcode() == Instruction::ExtractValue) {
>> @@ -1972,15 +2044,40 @@ bool BoUpSLP::canReuseExtract(ArrayRef<V
>>      return false;
>>
>>    // Check that all of the indices extract from the correct offset.
>> -  for (unsigned I = 0, E = VL.size(); I < E; ++I) {
>> -    Instruction *Inst = cast<Instruction>(VL[I]);
>> -    if (!matchExtractIndex(Inst, I, Inst->getOpcode()))
>> -      return false;
>> +  bool ShouldKeepOrder = true;
>> +  unsigned E = VL.size();
>> +  // Assign to all items the initial value E + 1 so we can check if the
>> extract
>> +  // instruction index was used already.
>> +  // Also, later we can check that all the indices are used and we have a
>> +  // consecutive access in the extract instructions, by checking that no
>> +  // element of CurrentOrder still has value E + 1.
>> +  CurrentOrder.assign(E, E + 1);
>> +  unsigned I = 0;
>> +  for (; I < E; ++I) {
>> +    auto *Inst = cast<Instruction>(VL[I]);
>>      if (Inst->getOperand(0) != Vec)
>> -      return false;
>> +      break;
>> +    Optional<unsigned> Idx = getExtractIndex(Inst);
>> +    if (!Idx)
>> +      break;
>> +    const unsigned ExtIdx = *Idx;
>> +    if (ExtIdx != I) {
>> +      if (ExtIdx >= E || CurrentOrder[ExtIdx] != E + 1)
>> +        break;
>> +      ShouldKeepOrder = false;
>> +      CurrentOrder[ExtIdx] = I;
>> +    } else {
>> +      if (CurrentOrder[I] != E + 1)
>> +        break;
>> +      CurrentOrder[I] = I;
>> +    }
>> +  }
>> +  if (I < E) {
>> +    CurrentOrder.clear();
>> +    return false;
>>    }
>>
>> -  return true;
>> +  return ShouldKeepOrder;
>>  }
>>
>>  bool BoUpSLP::areAllUsersVectorized(Instruction *I) const {
>> @@ -2082,8 +2179,13 @@ int BoUpSLP::getEntryCost(TreeEntry *E)
>>                TTI->getVectorInstrCost(Instruction::ExtractElement,
>> VecTy, Idx);
>>          }
>>        }
>> -      if (canReuseExtract(VL, S.OpValue)) {
>> +      if (!E->NeedToGather) {
>>          int DeadCost = ReuseShuffleCost;
>> +        if (!E->ReorderIndices.empty()) {
>> +          // TODO: Merge this shuffle with the ReuseShuffleCost.
>> +          DeadCost += TTI->getShuffleCost(
>> +              TargetTransformInfo::SK_PermuteSingleSrc, VecTy);
>> +        }
>>          for (unsigned i = 0, e = VL.size(); i < e; ++i) {
>>            Instruction *E = cast<Instruction>(VL[i]);
>>            // If all users are going to be vectorized, instruction can be
>> @@ -2246,7 +2348,8 @@ int BoUpSLP::getEntryCost(TreeEntry *E)
>>            TTI->getMemoryOpCost(Instruction::Load, ScalarTy, alignment,
>> 0, VL0);
>>        int VecLdCost = TTI->getMemoryOpCost(Instruction::Load,
>>                                             VecTy, alignment, 0, VL0);
>> -      if (!isConsecutiveAccess(VL[0], VL[1], *DL, *SE)) {
>> +      if (!E->ReorderIndices.empty()) {
>> +        // TODO: Merge this shuffle with the ReuseShuffleCost.
>>          VecLdCost += TTI->getShuffleCost(
>>              TargetTransformInfo::SK_PermuteSingleSrc, VecTy);
>>        }
>> @@ -2944,6 +3047,15 @@ Value *BoUpSLP::vectorizeTree(ArrayRef<V
>>    return V;
>>  }
>>
>> +static void inversePermutation(ArrayRef<unsigned> Indices,
>> +                               SmallVectorImpl<unsigned> &Mask) {
>> +  Mask.clear();
>> +  const unsigned E = Indices.size();
>> +  Mask.resize(E);
>> +  for (unsigned I = 0; I < E; ++I)
>> +    Mask[Indices[I]] = I;
>> +}
>> +
>>  Value *BoUpSLP::vectorizeTree(TreeEntry *E) {
>>    IRBuilder<>::InsertPointGuard Guard(Builder);
>>
>> @@ -3020,10 +3132,19 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>>      }
>>
>>      case Instruction::ExtractElement: {
>> -      if (canReuseExtract(E->Scalars, VL0)) {
>> +      if (!E->NeedToGather) {
>>          Value *V = VL0->getOperand(0);
>> -        if (NeedToShuffleReuses) {
>> +        if (!E->ReorderIndices.empty()) {
>> +          OrdersType Mask;
>> +          inversePermutation(E->ReorderIndices, Mask);
>>            Builder.SetInsertPoint(VL0);
>> +          V = Builder.CreateShuffleVector(V, UndefValue::get(VecTy),
>> Mask,
>> +                                          "reorder_shuffle");
>> +        }
>> +        if (NeedToShuffleReuses) {
>> +          // TODO: Merge this shuffle with the ReorderShuffleMask.
>> +          if (!E->ReorderIndices.empty())
>> +            Builder.SetInsertPoint(VL0);
>>            V = Builder.CreateShuffleVector(V, UndefValue::get(VecTy),
>>                                            E->ReuseShuffleIndices,
>> "shuffle");
>>          }
>> @@ -3044,14 +3165,21 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>>        return V;
>>      }
>>      case Instruction::ExtractValue: {
>> -      if (canReuseExtract(E->Scalars, VL0)) {
>> +      if (!E->NeedToGather) {
>>          LoadInst *LI = cast<LoadInst>(VL0->getOperand(0));
>>          Builder.SetInsertPoint(LI);
>>          PointerType *PtrTy = PointerType::get(VecTy,
>> LI->getPointerAddressSpace());
>>          Value *Ptr = Builder.CreateBitCast(LI->getOperand(0), PtrTy);
>>          LoadInst *V = Builder.CreateAlignedLoad(Ptr, LI->getAlignment());
>>          Value *NewV = propagateMetadata(V, E->Scalars);
>> +        if (!E->ReorderIndices.empty()) {
>> +          OrdersType Mask;
>> +          inversePermutation(E->ReorderIndices, Mask);
>> +          NewV = Builder.CreateShuffleVector(NewV,
>> UndefValue::get(VecTy), Mask,
>> +                                             "reorder_shuffle");
>> +        }
>>          if (NeedToShuffleReuses) {
>> +          // TODO: Merge this shuffle with the ReorderShuffleMask.
>>            NewV = Builder.CreateShuffleVector(
>>                NewV, UndefValue::get(VecTy), E->ReuseShuffleIndices,
>> "shuffle");
>>          }
>> @@ -3225,10 +3353,9 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>>      case Instruction::Load: {
>>        // Loads are inserted at the head of the tree because we don't
>> want to
>>        // sink them all the way down past store instructions.
>> -      bool IsReversed =
>> -          !isConsecutiveAccess(E->Scalars[0], E->Scalars[1], *DL, *SE);
>> -      if (IsReversed)
>> -        VL0 = cast<Instruction>(E->Scalars.back());
>> +      bool IsReorder = !E->ReorderIndices.empty();
>> +      if (IsReorder)
>> +        VL0 = cast<Instruction>(E->Scalars[E->ReorderIndices.front()]);
>>        setInsertPointAfterBundle(E->Scalars, VL0);
>>
>>        LoadInst *LI = cast<LoadInst>(VL0);
>> @@ -3252,12 +3379,14 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>>        }
>>        LI->setAlignment(Alignment);
>>        Value *V = propagateMetadata(LI, E->Scalars);
>> -      if (IsReversed) {
>> -        SmallVector<uint32_t, 4> Mask(E->Scalars.size());
>> -        std::iota(Mask.rbegin(), Mask.rend(), 0);
>> -        V = Builder.CreateShuffleVector(V,
>> UndefValue::get(V->getType()), Mask);
>> +      if (IsReorder) {
>> +        OrdersType Mask;
>> +        inversePermutation(E->ReorderIndices, Mask);
>> +        V = Builder.CreateShuffleVector(V, UndefValue::get(V->getType()),
>> +                                        Mask, "reorder_shuffle");
>>        }
>>        if (NeedToShuffleReuses) {
>> +        // TODO: Merge this shuffle with the ReorderShuffleMask.
>>          V = Builder.CreateShuffleVector(V, UndefValue::get(VecTy),
>>                                          E->ReuseShuffleIndices,
>> "shuffle");
>>        }
>> @@ -4836,8 +4965,10 @@ bool SLPVectorizerPass::tryToVectorizeLi
>>        ArrayRef<Value *> Ops = VL.slice(I, OpsWidth);
>>
>>        R.buildTree(Ops);
>> +      Optional<ArrayRef<unsigned>> Order = R.bestOrder();
>>        // TODO: check if we can allow reordering for more cases.
>> -      if (AllowReorder && R.shouldReorder()) {
>> +      if (AllowReorder && Order) {
>> +        // TODO: reorder tree nodes without tree rebuilding.
>>          // Conceptually, there is nothing actually preventing us from
>> trying to
>>          // reorder a larger list. In fact, we do exactly this when
>> vectorizing
>>          // reductions. However, at this point, we only expect to get
>> here when
>> @@ -5583,9 +5714,13 @@ public:
>>      while (i < NumReducedVals - ReduxWidth + 1 && ReduxWidth > 2) {
>>        auto VL = makeArrayRef(&ReducedVals[i], ReduxWidth);
>>        V.buildTree(VL, ExternallyUsedValues, IgnoreList);
>> -      if (V.shouldReorder()) {
>> -        SmallVector<Value *, 8> Reversed(VL.rbegin(), VL.rend());
>> -        V.buildTree(Reversed, ExternallyUsedValues, IgnoreList);
>> +      Optional<ArrayRef<unsigned>> Order = V.bestOrder();
>> +      if (Order) {
>> +        // TODO: reorder tree nodes without tree rebuilding.
>> +        SmallVector<Value *, 4> ReorderedOps(VL.size());
>> +        llvm::transform(*Order, ReorderedOps.begin(),
>> +                        [VL](const unsigned Idx) { return VL[Idx]; });
>> +        V.buildTree(ReorderedOps, ExternallyUsedValues, IgnoreList);
>>        }
>>        if (V.isTreeTinyAndNotFullyVectorizable())
>>          break;
>>
>> Modified:
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/external_user_jumbled_load.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/external_user_jumbled_load.ll?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> ---
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/external_user_jumbled_load.ll
>> (original)
>> +++
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/external_user_jumbled_load.ll
>> Mon Apr  2 07:51:37 2018
>> @@ -10,15 +10,16 @@ define void @hoge(i64 %idx, <4 x i32>* %
>>  ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [20 x [13 x
>> i32]], [20 x [13 x i32]]* @array, i64 0, i64 [[IDX]], i64 6
>> <https://maps.google.com/?q=i64+6&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds [20 x [13 x
>> i32]], [20 x [13 x i32]]* @array, i64 0, i64 [[IDX]], i64 7
>>  ; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr inbounds [20 x [13 x
>> i32]], [20 x [13 x i32]]* @array, i64 0, i64 [[IDX]], i64 8
>> -; CHECK-NEXT:    [[TMP4:%.*]] = bitcast i32* [[TMP1]] to <2 x i32>*
>> -; CHECK-NEXT:    [[TMP5:%.*]] = load <2 x i32>, <2 x i32>* [[TMP4]],
>> align 4
>> -; CHECK-NEXT:    [[TMP6:%.*]] = extractelement <2 x i32> [[TMP5]], i32 0
>> +; CHECK-NEXT:    [[TMP4:%.*]] = bitcast i32* [[TMP0]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP5:%.*]] = load <4 x i32>, <4 x i32>* [[TMP4]],
>> align 4
>> +; CHECK-NEXT:    [[REORDER_SHUFFLE:%.*]] = shufflevector <4 x i32>
>> [[TMP5]], <4 x i32> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
>> +; CHECK-NEXT:    [[TMP6:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 0
>>  ; CHECK-NEXT:    [[TMP7:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP6]], i32 0
>> -; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <2 x i32> [[TMP5]], i32 1
>> +; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 1
>>  ; CHECK-NEXT:    [[TMP9:%.*]] = insertelement <4 x i32> [[TMP7]], i32
>> [[TMP8]], i32 1
>> -; CHECK-NEXT:    [[TMP10:%.*]] = load i32, i32* [[TMP3]], align 4
>> +; CHECK-NEXT:    [[TMP10:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 2
>>  ; CHECK-NEXT:    [[TMP11:%.*]] = insertelement <4 x i32> [[TMP9]], i32
>> [[TMP10]], i32 2
>> -; CHECK-NEXT:    [[TMP12:%.*]] = load i32, i32* [[TMP0]], align 4
>> +; CHECK-NEXT:    [[TMP12:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 3
>>  ; CHECK-NEXT:    [[TMP13:%.*]] = insertelement <4 x i32> [[TMP11]], i32
>> [[TMP12]], i32 3
>>  ; CHECK-NEXT:    store <4 x i32> [[TMP13]], <4 x i32>* [[SINK:%.*]]
>>  ; CHECK-NEXT:    ret void
>>
>> Modified: llvm/trunk/test/Transforms/SLPVectorizer/X86/extract.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/extract.ll?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/Transforms/SLPVectorizer/X86/extract.ll (original)
>> +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/extract.ll Mon Apr  2
>> 07:51:37 2018
>> @@ -30,14 +30,11 @@ define void @fextr1(double* %ptr) {
>>  ; CHECK-LABEL: @fextr1(
>>  ; CHECK-NEXT:  entry:
>>  ; CHECK-NEXT:    [[LD:%.*]] = load <2 x double>, <2 x double>* undef
>> -; CHECK-NEXT:    [[V0:%.*]] = extractelement <2 x double> [[LD]], i32 0
>> -; CHECK-NEXT:    [[V1:%.*]] = extractelement <2 x double> [[LD]], i32 1
>> +; CHECK-NEXT:    [[REORDER_SHUFFLE:%.*]] = shufflevector <2 x double>
>> [[LD]], <2 x double> undef, <2 x i32> <i32 1, i32 0>
>>  ; CHECK-NEXT:    [[P1:%.*]] = getelementptr inbounds double, double*
>> [[PTR:%.*]], i64 0
>> -; CHECK-NEXT:    [[TMP0:%.*]] = insertelement <2 x double> undef, double
>> [[V1]], i32 0
>> -; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <2 x double> [[TMP0]],
>> double [[V0]], i32 1
>> -; CHECK-NEXT:    [[TMP2:%.*]] = fadd <2 x double> <double 3.400000e+00,
>> double 1.200000e+00>, [[TMP1]]
>> -; CHECK-NEXT:    [[TMP3:%.*]] = bitcast double* [[P1]] to <2 x double>*
>> -; CHECK-NEXT:    store <2 x double> [[TMP2]], <2 x double>* [[TMP3]],
>> align 4
>> +; CHECK-NEXT:    [[TMP0:%.*]] = fadd <2 x double> <double 3.400000e+00,
>> double 1.200000e+00>, [[REORDER_SHUFFLE]]
>> +; CHECK-NEXT:    [[TMP1:%.*]] = bitcast double* [[P1]] to <2 x double>*
>> +; CHECK-NEXT:    store <2 x double> [[TMP0]], <2 x double>* [[TMP1]],
>> align 4
>>  ; CHECK-NEXT:    ret void
>>  ;
>>  entry:
>>
>> Modified:
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-multiuse.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-multiuse.ll?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-multiuse.ll
>> (original)
>> +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-multiuse.ll
>> Mon Apr  2 07:51:37 2018
>> @@ -11,21 +11,16 @@
>>      define i32 @fn1() {
>>  ; CHECK-LABEL: @fn1(
>>  ; CHECK-NEXT:  entry:
>> -; CHECK-NEXT:    [[TMP0:%.*]] = load i32, i32* getelementptr inbounds
>> ([4 x i32], [4 x i32]* @b, i64 0, i32 0), align 4
>> -; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i32>, <2 x i32>* bitcast (i32*
>> getelementptr inbounds ([4 x i32], [4 x i32]* @b, i64 0, i32 1) to <2 x
>> i32>*), align 4
>> -; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* getelementptr inbounds
>> ([4 x i32], [4 x i32]* @b, i64 0, i32 3), align 4
>> -; CHECK-NEXT:    [[TMP3:%.*]] = extractelement <2 x i32> [[TMP1]], i32 0
>> -; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP3]], i32 0
>> -; CHECK-NEXT:    [[TMP5:%.*]] = extractelement <2 x i32> [[TMP1]], i32 1
>> -; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x i32> [[TMP4]], i32
>> [[TMP5]], i32 1
>> -; CHECK-NEXT:    [[TMP7:%.*]] = insertelement <4 x i32> [[TMP6]], i32
>> [[TMP2]], i32 2
>> -; CHECK-NEXT:    [[TMP8:%.*]] = insertelement <4 x i32> [[TMP7]], i32
>> [[TMP0]], i32 3
>> -; CHECK-NEXT:    [[TMP9:%.*]] = icmp sgt <4 x i32> [[TMP8]],
>> zeroinitializer
>> -; CHECK-NEXT:    [[TMP10:%.*]] = insertelement <4 x i32> [[TMP4]], i32
>> ptrtoint (i32 ()* @fn1 to i32), i32 1
>> -; CHECK-NEXT:    [[TMP11:%.*]] = insertelement <4 x i32> [[TMP10]], i32
>> ptrtoint (i32 ()* @fn1 to i32), i32 2
>> -; CHECK-NEXT:    [[TMP12:%.*]] = insertelement <4 x i32> [[TMP11]], i32
>> 8, i32 3
>> -; CHECK-NEXT:    [[TMP13:%.*]] = select <4 x i1> [[TMP9]], <4 x i32>
>> [[TMP12]], <4 x i32> <i32 6, i32 0, i32 0, i32 0>
>> -; CHECK-NEXT:    store <4 x i32> [[TMP13]], <4 x i32>* bitcast ([4 x
>> i32]* @a to <4 x i32>*), align 4
>> +; CHECK-NEXT:    [[TMP0:%.*]] = load <4 x i32>, <4 x i32>* bitcast ([4 x
>> i32]* @b to <4 x i32>*), align 4
>> +; CHECK-NEXT:    [[REORDER_SHUFFLE:%.*]] = shufflevector <4 x i32>
>> [[TMP0]], <4 x i32> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
>> +; CHECK-NEXT:    [[TMP1:%.*]] = icmp sgt <4 x i32> [[REORDER_SHUFFLE]],
>> zeroinitializer
>> +; CHECK-NEXT:    [[TMP2:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 0
>> +; CHECK-NEXT:    [[TMP3:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP2]], i32 0
>> +; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x i32> [[TMP3]], i32
>> ptrtoint (i32 ()* @fn1 to i32), i32 1
>> +; CHECK-NEXT:    [[TMP5:%.*]] = insertelement <4 x i32> [[TMP4]], i32
>> ptrtoint (i32 ()* @fn1 to i32), i32 2
>> +; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x i32> [[TMP5]], i32 8,
>> i32 3
>> +; CHECK-NEXT:    [[TMP7:%.*]] = select <4 x i1> [[TMP1]], <4 x i32>
>> [[TMP6]], <4 x i32> <i32 6, i32 0, i32 0, i32 0>
>> +; CHECK-NEXT:    store <4 x i32> [[TMP7]], <4 x i32>* bitcast ([4 x
>> i32]* @a to <4 x i32>*), align 4
>>  ; CHECK-NEXT:    ret i32 0
>>  ;
>>    entry:
>>
>> Modified:
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-shuffle-placement.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-shuffle-placement.ll?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> ---
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-shuffle-placement.ll
>> (original)
>> +++
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-shuffle-placement.ll
>> Mon Apr  2 07:51:37 2018
>> @@ -21,28 +21,21 @@
>>  ; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32*
>> [[A:%.*]], i64 10
>>  ; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 11
>>  ; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 1 <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[TMP0:%.*]] = bitcast i32* [[A]] to <2 x i32>*
>> -; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i32>, <2 x i32>* [[TMP0]],
>> align 4
>>  ; CHECK-NEXT:    [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 12 <https://maps.google.com/?q=i64+12&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[ARRAYIDX6:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* [[ARRAYIDX6]], align 4
>>  ; CHECK-NEXT:    [[ARRAYIDX8:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 13
>> -; CHECK-NEXT:    [[TMP3:%.*]] = bitcast i32* [[ARRAYIDX]] to <4 x i32>*
>> -; CHECK-NEXT:    [[TMP4:%.*]] = load <4 x i32>, <4 x i32>* [[TMP3]],
>> align 4
>> +; CHECK-NEXT:    [[TMP0:%.*]] = bitcast i32* [[ARRAYIDX]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP1:%.*]] = load <4 x i32>, <4 x i32>* [[TMP0]],
>> align 4
>>  ; CHECK-NEXT:    [[ARRAYIDX9:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[TMP5:%.*]] = load i32, i32* [[ARRAYIDX9]], align 4
>> -; CHECK-NEXT:    [[TMP6:%.*]] = extractelement <2 x i32> [[TMP1]], i32 0
>> -; CHECK-NEXT:    [[TMP7:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP6]], i32 0
>> -; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <2 x i32> [[TMP1]], i32 1
>> -; CHECK-NEXT:    [[TMP9:%.*]] = insertelement <4 x i32> [[TMP7]], i32
>> [[TMP8]], i32 1
>> -; CHECK-NEXT:    [[TMP10:%.*]] = insertelement <4 x i32> [[TMP9]], i32
>> [[TMP2]], i32 2
>> -; CHECK-NEXT:    [[TMP11:%.*]] = insertelement <4 x i32> [[TMP10]], i32
>> [[TMP5]], i32 3
>> -; CHECK-NEXT:    [[TMP12:%.*]] = mul nsw <4 x i32> [[TMP4]], [[TMP11]]
>> +; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i32* [[A]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP3:%.*]] = load <4 x i32>, <4 x i32>* [[TMP2]],
>> align 4
>> +; CHECK-NEXT:    [[TMP4:%.*]] = shufflevector <4 x i32> [[TMP3]], <4 x
>> i32> undef, <4 x i32> <i32 0, i32 1, i32 3, i32 2>
>> +; CHECK-NEXT:    [[TMP5:%.*]] = mul nsw <4 x i32> [[TMP1]], [[TMP4]]
>>  ; CHECK-NEXT:    [[ARRAYIDX12:%.*]] = getelementptr inbounds i32, i32*
>> [[B:%.*]], i64 1 <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[ARRAYIDX13:%.*]] = getelementptr inbounds i32, i32*
>> [[B]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[ARRAYIDX14:%.*]] = getelementptr inbounds i32, i32*
>> [[B]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[TMP13:%.*]] = bitcast i32* [[B]] to <4 x i32>*
>> -; CHECK-NEXT:    store <4 x i32> [[TMP12]], <4 x i32>* [[TMP13]], align 4
>> +; CHECK-NEXT:    [[TMP6:%.*]] = bitcast i32* [[B]] to <4 x i32>*
>> +; CHECK-NEXT:    store <4 x i32> [[TMP5]], <4 x i32>* [[TMP6]], align 4
>>  ; CHECK-NEXT:    ret void
>>  ;
>>  entry:
>> @@ -83,28 +76,21 @@ entry:
>>  ; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32*
>> [[A:%.*]], i64 10
>>  ; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 11
>>  ; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 1 <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[TMP0:%.*]] = bitcast i32* [[A]] to <2 x i32>*
>> -; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i32>, <2 x i32>* [[TMP0]],
>> align 4
>>  ; CHECK-NEXT:    [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 12 <https://maps.google.com/?q=i64+12&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[ARRAYIDX6:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* [[ARRAYIDX6]], align 4
>>  ; CHECK-NEXT:    [[ARRAYIDX8:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 13
>> -; CHECK-NEXT:    [[TMP3:%.*]] = bitcast i32* [[ARRAYIDX]] to <4 x i32>*
>> -; CHECK-NEXT:    [[TMP4:%.*]] = load <4 x i32>, <4 x i32>* [[TMP3]],
>> align 4
>> +; CHECK-NEXT:    [[TMP0:%.*]] = bitcast i32* [[ARRAYIDX]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP1:%.*]] = load <4 x i32>, <4 x i32>* [[TMP0]],
>> align 4
>>  ; CHECK-NEXT:    [[ARRAYIDX9:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[TMP5:%.*]] = load i32, i32* [[ARRAYIDX9]], align 4
>> -; CHECK-NEXT:    [[TMP6:%.*]] = extractelement <2 x i32> [[TMP1]], i32 0
>> -; CHECK-NEXT:    [[TMP7:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP6]], i32 0
>> -; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <2 x i32> [[TMP1]], i32 1
>> -; CHECK-NEXT:    [[TMP9:%.*]] = insertelement <4 x i32> [[TMP7]], i32
>> [[TMP8]], i32 1
>> -; CHECK-NEXT:    [[TMP10:%.*]] = insertelement <4 x i32> [[TMP9]], i32
>> [[TMP2]], i32 2
>> -; CHECK-NEXT:    [[TMP11:%.*]] = insertelement <4 x i32> [[TMP10]], i32
>> [[TMP5]], i32 3
>> -; CHECK-NEXT:    [[TMP12:%.*]] = mul nsw <4 x i32> [[TMP11]], [[TMP4]]
>> +; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i32* [[A]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP3:%.*]] = load <4 x i32>, <4 x i32>* [[TMP2]],
>> align 4
>> +; CHECK-NEXT:    [[TMP4:%.*]] = shufflevector <4 x i32> [[TMP3]], <4 x
>> i32> undef, <4 x i32> <i32 0, i32 1, i32 3, i32 2>
>> +; CHECK-NEXT:    [[TMP5:%.*]] = mul nsw <4 x i32> [[TMP4]], [[TMP1]]
>>  ; CHECK-NEXT:    [[ARRAYIDX12:%.*]] = getelementptr inbounds i32, i32*
>> [[B:%.*]], i64 1 <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[ARRAYIDX13:%.*]] = getelementptr inbounds i32, i32*
>> [[B]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[ARRAYIDX14:%.*]] = getelementptr inbounds i32, i32*
>> [[B]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[TMP13:%.*]] = bitcast i32* [[B]] to <4 x i32>*
>> -; CHECK-NEXT:    store <4 x i32> [[TMP12]], <4 x i32>* [[TMP13]], align 4
>> +; CHECK-NEXT:    [[TMP6:%.*]] = bitcast i32* [[B]] to <4 x i32>*
>> +; CHECK-NEXT:    store <4 x i32> [[TMP5]], <4 x i32>* [[TMP6]], align 4
>>  ; CHECK-NEXT:    ret void
>>  ;
>>  entry:
>>
>> Modified:
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-used-in-phi.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-used-in-phi.ll?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> ---
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-used-in-phi.ll
>> (original)
>> +++
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-used-in-phi.ll
>> Mon Apr  2 07:51:37 2018
>> @@ -48,11 +48,11 @@ define void @phiUsingLoads(i32* noalias
>>  ; CHECK-NEXT:    [[ARRAYIDX65:%.*]] = getelementptr inbounds i32, i32*
>> [[B]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[ARRAYIDX66:%.*]] = getelementptr inbounds i32, i32*
>> [[B]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[B]] to <4 x i32>*
>> -; CHECK-NEXT:    store <4 x i32> [[TMP34:%.*]], <4 x i32>* [[TMP1]],
>> align 4
>> +; CHECK-NEXT:    store <4 x i32> [[TMP27:%.*]], <4 x i32>* [[TMP1]],
>> align 4
>>  ; CHECK-NEXT:    ret void
>>  ; CHECK:       for.body:
>>  ; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [
>> [[INDVARS_IV_NEXT:%.*]], [[FOR_INC:%.*]] ]
>> -; CHECK-NEXT:    [[TMP2:%.*]] = phi <4 x i32> [ undef, [[ENTRY]] ], [
>> [[TMP34]], [[FOR_INC]] ]
>> +; CHECK-NEXT:    [[TMP2:%.*]] = phi <4 x i32> [ undef, [[ENTRY]] ], [
>> [[TMP27]], [[FOR_INC]] ]
>>  ; CHECK-NEXT:    br i1 [[CMP1]], label [[IF_THEN:%.*]], label
>> [[IF_ELSE:%.*]]
>>  ; CHECK:       if.then:
>>  ; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 [[INDVARS_IV]]
>> @@ -103,23 +103,16 @@ define void @phiUsingLoads(i32* noalias
>>  ; CHECK-NEXT:    [[ARRAYIDX49:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 [[INDVARS_IV]]
>>  ; CHECK-NEXT:    [[TMP21:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1
>>  ; CHECK-NEXT:    [[ARRAYIDX52:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 [[TMP21]]
>> -; CHECK-NEXT:    [[TMP22:%.*]] = bitcast i32* [[ARRAYIDX49]] to <2 x
>> i32>*
>> -; CHECK-NEXT:    [[TMP23:%.*]] = load <2 x i32>, <2 x i32>* [[TMP22]],
>> align 4
>> -; CHECK-NEXT:    [[TMP24:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3
>> -; CHECK-NEXT:    [[ARRAYIDX55:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 [[TMP24]]
>> -; CHECK-NEXT:    [[TMP25:%.*]] = load i32, i32* [[ARRAYIDX55]], align 4
>> -; CHECK-NEXT:    [[TMP26:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2
>> -; CHECK-NEXT:    [[ARRAYIDX58:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 [[TMP26]]
>> -; CHECK-NEXT:    [[TMP27:%.*]] = load i32, i32* [[ARRAYIDX58]], align 4
>> -; CHECK-NEXT:    [[TMP28:%.*]] = extractelement <2 x i32> [[TMP23]], i32
>> 0
>> -; CHECK-NEXT:    [[TMP29:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP28]], i32 0
>> -; CHECK-NEXT:    [[TMP30:%.*]] = extractelement <2 x i32> [[TMP23]], i32
>> 1
>> -; CHECK-NEXT:    [[TMP31:%.*]] = insertelement <4 x i32> [[TMP29]], i32
>> [[TMP30]], i32 1
>> -; CHECK-NEXT:    [[TMP32:%.*]] = insertelement <4 x i32> [[TMP31]], i32
>> [[TMP25]], i32 2
>> -; CHECK-NEXT:    [[TMP33:%.*]] = insertelement <4 x i32> [[TMP32]], i32
>> [[TMP27]], i32 3
>> +; CHECK-NEXT:    [[TMP22:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 3
>> +; CHECK-NEXT:    [[ARRAYIDX55:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 [[TMP22]]
>> +; CHECK-NEXT:    [[TMP23:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 2
>> +; CHECK-NEXT:    [[ARRAYIDX58:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 [[TMP23]]
>> +; CHECK-NEXT:    [[TMP24:%.*]] = bitcast i32* [[ARRAYIDX49]] to <4 x
>> i32>*
>> +; CHECK-NEXT:    [[TMP25:%.*]] = load <4 x i32>, <4 x i32>* [[TMP24]],
>> align 4
>> +; CHECK-NEXT:    [[TMP26:%.*]] = shufflevector <4 x i32> [[TMP25]], <4 x
>> i32> undef, <4 x i32> <i32 0, i32 1, i32 3, i32 2>
>>  ; CHECK-NEXT:    br label [[FOR_INC]]
>>  ; CHECK:       for.inc:
>> -; CHECK-NEXT:    [[TMP34]] = phi <4 x i32> [ [[TMP7]], [[IF_THEN]] ], [
>> [[TMP13]], [[IF_THEN14]] ], [ [[TMP19]], [[IF_THEN30]] ], [ [[TMP33]],
>> [[IF_THEN46]] ], [ [[TMP2]], [[IF_ELSE43]] ]
>> +; CHECK-NEXT:    [[TMP27]] = phi <4 x i32> [ [[TMP7]], [[IF_THEN]] ], [
>> [[TMP13]], [[IF_THEN14]] ], [ [[TMP19]], [[IF_THEN30]] ], [ [[TMP26]],
>> [[IF_THEN46]] ], [ [[TMP2]], [[IF_ELSE43]] ]
>>  ; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
>>  ; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 100
>>  ; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP:%.*]],
>> label [[FOR_BODY]]
>>
>> Modified: llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load.ll?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load.ll
>> (original)
>> +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load.ll Mon Apr
>> 2 07:51:37 2018
>> @@ -6,33 +6,26 @@
>>  define i32 @jumbled-load(i32* noalias nocapture %in, i32* noalias
>> nocapture %inn, i32* noalias nocapture %out) {
>>  ; CHECK-LABEL: @jumbled-load(
>>  ; CHECK-NEXT:    [[IN_ADDR:%.*]] = getelementptr inbounds i32, i32*
>> [[IN:%.*]], i64 0
>> -; CHECK-NEXT:    [[LOAD_1:%.*]] = load i32, i32* [[IN_ADDR]], align 4
>>  ; CHECK-NEXT:    [[GEP_1:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 3
>> <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_2:%.*]] = load i32, i32* [[GEP_1]], align 4
>>  ; CHECK-NEXT:    [[GEP_2:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 1
>> <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_3:%.*]] = load i32, i32* [[GEP_2]], align 4
>>  ; CHECK-NEXT:    [[GEP_3:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 2
>> <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_4:%.*]] = load i32, i32* [[GEP_3]], align 4
>> +; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[IN_ADDR]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP2:%.*]] = load <4 x i32>, <4 x i32>* [[TMP1]],
>> align 4
>> +; CHECK-NEXT:    [[REORDER_SHUFFLE:%.*]] = shufflevector <4 x i32>
>> [[TMP2]], <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 2, i32 0>
>>  ; CHECK-NEXT:    [[INN_ADDR:%.*]] = getelementptr inbounds i32, i32*
>> [[INN:%.*]], i64 0
>> -; CHECK-NEXT:    [[LOAD_5:%.*]] = load i32, i32* [[INN_ADDR]], align 4
>>  ; CHECK-NEXT:    [[GEP_4:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 2
>> <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_6:%.*]] = load i32, i32* [[GEP_4]], align 4
>>  ; CHECK-NEXT:    [[GEP_5:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 3
>> <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_7:%.*]] = load i32, i32* [[GEP_5]], align 4
>>  ; CHECK-NEXT:    [[GEP_6:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 1
>> <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_8:%.*]] = load i32, i32* [[GEP_6]], align 4
>> -; CHECK-NEXT:    [[MUL_1:%.*]] = mul i32 [[LOAD_3]], [[LOAD_5]]
>> -; CHECK-NEXT:    [[MUL_2:%.*]] = mul i32 [[LOAD_2]], [[LOAD_8]]
>> -; CHECK-NEXT:    [[MUL_3:%.*]] = mul i32 [[LOAD_4]], [[LOAD_7]]
>> -; CHECK-NEXT:    [[MUL_4:%.*]] = mul i32 [[LOAD_1]], [[LOAD_6]]
>> +; CHECK-NEXT:    [[TMP3:%.*]] = bitcast i32* [[INN_ADDR]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP4:%.*]] = load <4 x i32>, <4 x i32>* [[TMP3]],
>> align 4
>> +; CHECK-NEXT:    [[REORDER_SHUFFLE1:%.*]] = shufflevector <4 x i32>
>> [[TMP4]], <4 x i32> undef, <4 x i32> <i32 0, i32 1, i32 3, i32 2>
>> +; CHECK-NEXT:    [[TMP5:%.*]] = mul <4 x i32> [[REORDER_SHUFFLE]],
>> [[REORDER_SHUFFLE1]]
>>  ; CHECK-NEXT:    [[GEP_7:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT:%.*]], i64 0
>> -; CHECK-NEXT:    store i32 [[MUL_1]], i32* [[GEP_7]], align 4
>>  ; CHECK-NEXT:    [[GEP_8:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 1 <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    store i32 [[MUL_2]], i32* [[GEP_8]], align 4
>>  ; CHECK-NEXT:    [[GEP_9:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    store i32 [[MUL_3]], i32* [[GEP_9]], align 4
>>  ; CHECK-NEXT:    [[GEP_10:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    store i32 [[MUL_4]], i32* [[GEP_10]], align 4
>> +; CHECK-NEXT:    [[TMP6:%.*]] = bitcast i32* [[GEP_7]] to <4 x i32>*
>> +; CHECK-NEXT:    store <4 x i32> [[TMP5]], <4 x i32>* [[TMP6]], align 4
>>  ; CHECK-NEXT:    ret i32 undef
>>  ;
>>    %in.addr = getelementptr inbounds i32, i32* %in, i64 0
>> @@ -71,25 +64,27 @@ define i32 @jumbled-load(i32* noalias no
>>  define i32 @jumbled-load-multiuses(i32* noalias nocapture %in, i32*
>> noalias nocapture %out) {
>>  ; CHECK-LABEL: @jumbled-load-multiuses(
>>  ; CHECK-NEXT:    [[IN_ADDR:%.*]] = getelementptr inbounds i32, i32*
>> [[IN:%.*]], i64 0
>> -; CHECK-NEXT:    [[LOAD_1:%.*]] = load i32, i32* [[IN_ADDR]], align 4
>>  ; CHECK-NEXT:    [[GEP_1:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 3
>> <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_2:%.*]] = load i32, i32* [[GEP_1]], align 4
>>  ; CHECK-NEXT:    [[GEP_2:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 1
>> <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_3:%.*]] = load i32, i32* [[GEP_2]], align 4
>>  ; CHECK-NEXT:    [[GEP_3:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 2
>> <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_4:%.*]] = load i32, i32* [[GEP_3]], align 4
>> -; CHECK-NEXT:    [[MUL_1:%.*]] = mul i32 [[LOAD_3]], [[LOAD_4]]
>> -; CHECK-NEXT:    [[MUL_2:%.*]] = mul i32 [[LOAD_2]], [[LOAD_2]]
>> -; CHECK-NEXT:    [[MUL_3:%.*]] = mul i32 [[LOAD_4]], [[LOAD_1]]
>> -; CHECK-NEXT:    [[MUL_4:%.*]] = mul i32 [[LOAD_1]], [[LOAD_3]]
>> +; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[IN_ADDR]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP2:%.*]] = load <4 x i32>, <4 x i32>* [[TMP1]],
>> align 4
>> +; CHECK-NEXT:    [[REORDER_SHUFFLE:%.*]] = shufflevector <4 x i32>
>> [[TMP2]], <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 2, i32 0>
>> +; CHECK-NEXT:    [[TMP3:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 2
>> +; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP3]], i32 0
>> +; CHECK-NEXT:    [[TMP5:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 1
>> +; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x i32> [[TMP4]], i32
>> [[TMP5]], i32 1
>> +; CHECK-NEXT:    [[TMP7:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 3
>> +; CHECK-NEXT:    [[TMP8:%.*]] = insertelement <4 x i32> [[TMP6]], i32
>> [[TMP7]], i32 2
>> +; CHECK-NEXT:    [[TMP9:%.*]] = extractelement <4 x i32>
>> [[REORDER_SHUFFLE]], i32 0
>> +; CHECK-NEXT:    [[TMP10:%.*]] = insertelement <4 x i32> [[TMP8]], i32
>> [[TMP9]], i32 3
>> +; CHECK-NEXT:    [[TMP11:%.*]] = mul <4 x i32> [[REORDER_SHUFFLE]],
>> [[TMP10]]
>>  ; CHECK-NEXT:    [[GEP_7:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT:%.*]], i64 0
>> -; CHECK-NEXT:    store i32 [[MUL_1]], i32* [[GEP_7]], align 4
>>  ; CHECK-NEXT:    [[GEP_8:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 1 <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    store i32 [[MUL_2]], i32* [[GEP_8]], align 4
>>  ; CHECK-NEXT:    [[GEP_9:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    store i32 [[MUL_3]], i32* [[GEP_9]], align 4
>>  ; CHECK-NEXT:    [[GEP_10:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    store i32 [[MUL_4]], i32* [[GEP_10]], align 4
>> +; CHECK-NEXT:    [[TMP12:%.*]] = bitcast i32* [[GEP_7]] to <4 x i32>*
>> +; CHECK-NEXT:    store <4 x i32> [[TMP11]], <4 x i32>* [[TMP12]], align 4
>>  ; CHECK-NEXT:    ret i32 undef
>>  ;
>>    %in.addr = getelementptr inbounds i32, i32* %in, i64 0
>>
>> Modified:
>> llvm/trunk/test/Transforms/SLPVectorizer/X86/reassociated-loads.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/reassociated-loads.ll?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/Transforms/SLPVectorizer/X86/reassociated-loads.ll
>> (original)
>> +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/reassociated-loads.ll
>> Mon Apr  2 07:51:37 2018
>> @@ -5,70 +5,49 @@ define signext i8 @Foo(<32 x i8>* %__v)
>>  ; CHECK-LABEL: @Foo(
>>  ; CHECK-NEXT:  entry:
>>  ; CHECK-NEXT:    [[TMP0:%.*]] = load <32 x i8>, <32 x i8>* [[__V:%.*]],
>> align 32
>> -; CHECK-NEXT:    [[VECEXT_I_I_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 0
>> -; CHECK-NEXT:    [[VECEXT_I_I_1_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 1 <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[ADD_I_1_I:%.*]] = add i8 [[VECEXT_I_I_1_I]],
>> [[VECEXT_I_I_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_2_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[ADD_I_2_I:%.*]] = add i8 [[ADD_I_1_I]],
>> [[VECEXT_I_I_2_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_3_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[ADD_I_3_I:%.*]] = add i8 [[ADD_I_2_I]],
>> [[VECEXT_I_I_3_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_4_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 4 <https://maps.google.com/?q=i64+4&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[ADD_I_4_I:%.*]] = add i8 [[ADD_I_3_I]],
>> [[VECEXT_I_I_4_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_5_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 5 <https://maps.google.com/?q=i64+5&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[ADD_I_5_I:%.*]] = add i8 [[ADD_I_4_I]],
>> [[VECEXT_I_I_5_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_6_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 6 <https://maps.google.com/?q=i64+6&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[ADD_I_6_I:%.*]] = add i8 [[ADD_I_5_I]],
>> [[VECEXT_I_I_6_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_7_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 7
>> -; CHECK-NEXT:    [[ADD_I_7_I:%.*]] = add i8 [[ADD_I_6_I]],
>> [[VECEXT_I_I_7_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_8_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 8
>> -; CHECK-NEXT:    [[ADD_I_8_I:%.*]] = add i8 [[ADD_I_7_I]],
>> [[VECEXT_I_I_8_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_9_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 9
>> -; CHECK-NEXT:    [[ADD_I_9_I:%.*]] = add i8 [[ADD_I_8_I]],
>> [[VECEXT_I_I_9_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_10_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 10
>> -; CHECK-NEXT:    [[ADD_I_10_I:%.*]] = add i8 [[ADD_I_9_I]],
>> [[VECEXT_I_I_10_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_11_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 11
>> -; CHECK-NEXT:    [[ADD_I_11_I:%.*]] = add i8 [[ADD_I_10_I]],
>> [[VECEXT_I_I_11_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_12_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 12 <https://maps.google.com/?q=i64+12&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[ADD_I_12_I:%.*]] = add i8 [[ADD_I_11_I]],
>> [[VECEXT_I_I_12_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_13_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 13
>> -; CHECK-NEXT:    [[ADD_I_13_I:%.*]] = add i8 [[ADD_I_12_I]],
>> [[VECEXT_I_I_13_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_14_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 14
>> -; CHECK-NEXT:    [[ADD_I_14_I:%.*]] = add i8 [[ADD_I_13_I]],
>> [[VECEXT_I_I_14_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_15_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 15
>> -; CHECK-NEXT:    [[ADD_I_15_I:%.*]] = add i8 [[ADD_I_14_I]],
>> [[VECEXT_I_I_15_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_16_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 16
>> -; CHECK-NEXT:    [[ADD_I_16_I:%.*]] = add i8 [[ADD_I_15_I]],
>> [[VECEXT_I_I_16_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_17_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 17
>> -; CHECK-NEXT:    [[ADD_I_17_I:%.*]] = add i8 [[ADD_I_16_I]],
>> [[VECEXT_I_I_17_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_18_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 18
>> -; CHECK-NEXT:    [[ADD_I_18_I:%.*]] = add i8 [[ADD_I_17_I]],
>> [[VECEXT_I_I_18_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_19_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 19
>> -; CHECK-NEXT:    [[ADD_I_19_I:%.*]] = add i8 [[ADD_I_18_I]],
>> [[VECEXT_I_I_19_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_20_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 20
>> -; CHECK-NEXT:    [[ADD_I_20_I:%.*]] = add i8 [[ADD_I_19_I]],
>> [[VECEXT_I_I_20_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_21_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 21
>> -; CHECK-NEXT:    [[ADD_I_21_I:%.*]] = add i8 [[ADD_I_20_I]],
>> [[VECEXT_I_I_21_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_22_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 22
>> -; CHECK-NEXT:    [[ADD_I_22_I:%.*]] = add i8 [[ADD_I_21_I]],
>> [[VECEXT_I_I_22_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_23_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 23
>> -; CHECK-NEXT:    [[ADD_I_23_I:%.*]] = add i8 [[ADD_I_22_I]],
>> [[VECEXT_I_I_23_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_24_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 24
>> -; CHECK-NEXT:    [[ADD_I_24_I:%.*]] = add i8 [[ADD_I_23_I]],
>> [[VECEXT_I_I_24_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_25_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 25
>> -; CHECK-NEXT:    [[ADD_I_25_I:%.*]] = add i8 [[ADD_I_24_I]],
>> [[VECEXT_I_I_25_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_26_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 26
>> -; CHECK-NEXT:    [[ADD_I_26_I:%.*]] = add i8 [[ADD_I_25_I]],
>> [[VECEXT_I_I_26_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_27_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 27
>> -; CHECK-NEXT:    [[ADD_I_27_I:%.*]] = add i8 [[ADD_I_26_I]],
>> [[VECEXT_I_I_27_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_28_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 28
>> -; CHECK-NEXT:    [[ADD_I_28_I:%.*]] = add i8 [[ADD_I_27_I]],
>> [[VECEXT_I_I_28_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_29_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 29
>> -; CHECK-NEXT:    [[ADD_I_29_I:%.*]] = add i8 [[ADD_I_28_I]],
>> [[VECEXT_I_I_29_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_30_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 30
>> -; CHECK-NEXT:    [[ADD_I_30_I:%.*]] = add i8 [[ADD_I_29_I]],
>> [[VECEXT_I_I_30_I]]
>> -; CHECK-NEXT:    [[VECEXT_I_I_31_I:%.*]] = extractelement <32 x i8>
>> [[TMP0]], i64 31
>> -; CHECK-NEXT:    [[ADD_I_31_I:%.*]] = add i8 [[ADD_I_30_I]],
>> [[VECEXT_I_I_31_I]]
>> -; CHECK-NEXT:    ret i8 [[ADD_I_31_I]]
>> +; CHECK-NEXT:    [[ADD_I_1_I:%.*]] = add i8 undef, undef
>> +; CHECK-NEXT:    [[ADD_I_2_I:%.*]] = add i8 [[ADD_I_1_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_3_I:%.*]] = add i8 [[ADD_I_2_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_4_I:%.*]] = add i8 [[ADD_I_3_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_5_I:%.*]] = add i8 [[ADD_I_4_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_6_I:%.*]] = add i8 [[ADD_I_5_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_7_I:%.*]] = add i8 [[ADD_I_6_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_8_I:%.*]] = add i8 [[ADD_I_7_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_9_I:%.*]] = add i8 [[ADD_I_8_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_10_I:%.*]] = add i8 [[ADD_I_9_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_11_I:%.*]] = add i8 [[ADD_I_10_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_12_I:%.*]] = add i8 [[ADD_I_11_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_13_I:%.*]] = add i8 [[ADD_I_12_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_14_I:%.*]] = add i8 [[ADD_I_13_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_15_I:%.*]] = add i8 [[ADD_I_14_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_16_I:%.*]] = add i8 [[ADD_I_15_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_17_I:%.*]] = add i8 [[ADD_I_16_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_18_I:%.*]] = add i8 [[ADD_I_17_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_19_I:%.*]] = add i8 [[ADD_I_18_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_20_I:%.*]] = add i8 [[ADD_I_19_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_21_I:%.*]] = add i8 [[ADD_I_20_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_22_I:%.*]] = add i8 [[ADD_I_21_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_23_I:%.*]] = add i8 [[ADD_I_22_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_24_I:%.*]] = add i8 [[ADD_I_23_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_25_I:%.*]] = add i8 [[ADD_I_24_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_26_I:%.*]] = add i8 [[ADD_I_25_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_27_I:%.*]] = add i8 [[ADD_I_26_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_28_I:%.*]] = add i8 [[ADD_I_27_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_29_I:%.*]] = add i8 [[ADD_I_28_I]], undef
>> +; CHECK-NEXT:    [[ADD_I_30_I:%.*]] = add i8 [[ADD_I_29_I]], undef
>> +; CHECK-NEXT:    [[RDX_SHUF:%.*]] = shufflevector <32 x i8> [[TMP0]],
>> <32 x i8> undef, <32 x i32> <i32 16, i32 17, i32 18, i32 19, i32 20, i32
>> 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30,
>> i32 31, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,
>> i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef, i32 undef>
>> +; CHECK-NEXT:    [[BIN_RDX:%.*]] = add <32 x i8> [[TMP0]], [[RDX_SHUF]]
>> +; CHECK-NEXT:    [[RDX_SHUF1:%.*]] = shufflevector <32 x i8>
>> [[BIN_RDX]], <32 x i8> undef, <32 x i32> <i32 8, i32 9, i32 10, i32 11, i32
>> 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,
>> i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
>> +; CHECK-NEXT:    [[BIN_RDX2:%.*]] = add <32 x i8> [[BIN_RDX]],
>> [[RDX_SHUF1]]
>> +; CHECK-NEXT:    [[RDX_SHUF3:%.*]] = shufflevector <32 x i8>
>> [[BIN_RDX2]], <32 x i8> undef, <32 x i32> <i32 4, i32 5, i32 6, i32 7, i32
>> undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,
>> i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,
>> i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef>
>> +; CHECK-NEXT:    [[BIN_RDX4:%.*]] = add <32 x i8> [[BIN_RDX2]],
>> [[RDX_SHUF3]]
>> +; CHECK-NEXT:    [[RDX_SHUF5:%.*]] = shufflevector <32 x i8>
>> [[BIN_RDX4]], <32 x i8> undef, <32 x i32> <i32 2, i32 3, i32 undef, i32
>> undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,
>> i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,
>> i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef>
>> +; CHECK-NEXT:    [[BIN_RDX6:%.*]] = add <32 x i8> [[BIN_RDX4]],
>> [[RDX_SHUF5]]
>> +; CHECK-NEXT:    [[RDX_SHUF7:%.*]] = shufflevector <32 x i8>
>> [[BIN_RDX6]], <32 x i8> undef, <32 x i32> <i32 1, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,
>> i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,
>> i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32
>> undef, i32 undef, i32 undef>
>> +; CHECK-NEXT:    [[BIN_RDX8:%.*]] = add <32 x i8> [[BIN_RDX6]],
>> [[RDX_SHUF7]]
>> +; CHECK-NEXT:    [[TMP1:%.*]] = extractelement <32 x i8> [[BIN_RDX8]],
>> i32 0
>> +; CHECK-NEXT:    [[ADD_I_31_I:%.*]] = add i8 [[ADD_I_30_I]], undef
>> +; CHECK-NEXT:    ret i8 [[TMP1]]
>>  ;
>>  entry:
>>    %0 = load <32 x i8>, <32 x i8>* %__v, align 32
>>
>> Modified: llvm/trunk/test/Transforms/SLPVectorizer/X86/store-jumbled.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/store-jumbled.ll?rev=328980&r1=328979&r2=328980&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/Transforms/SLPVectorizer/X86/store-jumbled.ll
>> (original)
>> +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/store-jumbled.ll Mon
>> Apr  2 07:51:37 2018
>> @@ -6,33 +6,26 @@
>>  define i32 @jumbled-load(i32* noalias nocapture %in, i32* noalias
>> nocapture %inn, i32* noalias nocapture %out) {
>>  ; CHECK-LABEL: @jumbled-load(
>>  ; CHECK-NEXT:    [[IN_ADDR:%.*]] = getelementptr inbounds i32, i32*
>> [[IN:%.*]], i64 0
>> -; CHECK-NEXT:    [[LOAD_1:%.*]] = load i32, i32* [[IN_ADDR]], align 4
>>  ; CHECK-NEXT:    [[GEP_1:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 1
>> <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_2:%.*]] = load i32, i32* [[GEP_1]], align 4
>>  ; CHECK-NEXT:    [[GEP_2:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 2
>> <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_3:%.*]] = load i32, i32* [[GEP_2]], align 4
>>  ; CHECK-NEXT:    [[GEP_3:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 3
>> <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_4:%.*]] = load i32, i32* [[GEP_3]], align 4
>> +; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[IN_ADDR]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP2:%.*]] = load <4 x i32>, <4 x i32>* [[TMP1]],
>> align 4
>> +; CHECK-NEXT:    [[REORDER_SHUFFLE:%.*]] = shufflevector <4 x i32>
>> [[TMP2]], <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 0, i32 2>
>>  ; CHECK-NEXT:    [[INN_ADDR:%.*]] = getelementptr inbounds i32, i32*
>> [[INN:%.*]], i64 0
>> -; CHECK-NEXT:    [[LOAD_5:%.*]] = load i32, i32* [[INN_ADDR]], align 4
>>  ; CHECK-NEXT:    [[GEP_4:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 1
>> <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_6:%.*]] = load i32, i32* [[GEP_4]], align 4
>>  ; CHECK-NEXT:    [[GEP_5:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 2
>> <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_7:%.*]] = load i32, i32* [[GEP_5]], align 4
>>  ; CHECK-NEXT:    [[GEP_6:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 3
>> <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    [[LOAD_8:%.*]] = load i32, i32* [[GEP_6]], align 4
>> -; CHECK-NEXT:    [[MUL_1:%.*]] = mul i32 [[LOAD_1]], [[LOAD_5]]
>> -; CHECK-NEXT:    [[MUL_2:%.*]] = mul i32 [[LOAD_2]], [[LOAD_6]]
>> -; CHECK-NEXT:    [[MUL_3:%.*]] = mul i32 [[LOAD_3]], [[LOAD_7]]
>> -; CHECK-NEXT:    [[MUL_4:%.*]] = mul i32 [[LOAD_4]], [[LOAD_8]]
>> +; CHECK-NEXT:    [[TMP3:%.*]] = bitcast i32* [[INN_ADDR]] to <4 x i32>*
>> +; CHECK-NEXT:    [[TMP4:%.*]] = load <4 x i32>, <4 x i32>* [[TMP3]],
>> align 4
>> +; CHECK-NEXT:    [[REORDER_SHUFFLE1:%.*]] = shufflevector <4 x i32>
>> [[TMP4]], <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 0, i32 2>
>> +; CHECK-NEXT:    [[TMP5:%.*]] = mul <4 x i32> [[REORDER_SHUFFLE]],
>> [[REORDER_SHUFFLE1]]
>>  ; CHECK-NEXT:    [[GEP_7:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT:%.*]], i64 0
>>  ; CHECK-NEXT:    [[GEP_8:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 1 <https://maps.google.com/?q=i64+1&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[GEP_9:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 2 <https://maps.google.com/?q=i64+2&entry=gmail&source=g>
>>  ; CHECK-NEXT:    [[GEP_10:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 3 <https://maps.google.com/?q=i64+3&entry=gmail&source=g>
>> -; CHECK-NEXT:    store i32 [[MUL_1]], i32* [[GEP_9]], align 4
>> -; CHECK-NEXT:    store i32 [[MUL_2]], i32* [[GEP_7]], align 4
>> -; CHECK-NEXT:    store i32 [[MUL_3]], i32* [[GEP_10]], align 4
>> -; CHECK-NEXT:    store i32 [[MUL_4]], i32* [[GEP_8]], align 4
>> +; CHECK-NEXT:    [[TMP6:%.*]] = bitcast i32* [[GEP_7]] to <4 x i32>*
>> +; CHECK-NEXT:    store <4 x i32> [[TMP5]], <4 x i32>* [[TMP6]], align 4
>>  ; CHECK-NEXT:    ret i32 undef
>>  ;
>>    %in.addr = getelementptr inbounds i32, i32* %in, i64 0
>>
>>
>> _______________________________________________
>> llvm-commits mailing list
>> llvm-commits at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>
>
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