[llvm] r314806 - [SLP] Vectorize jumbled memory loads.

Hans Wennborg via llvm-commits llvm-commits at lists.llvm.org
Tue Oct 3 12:37:35 PDT 2017


I normally just do "git revert", edit the commit message to something
sensible (most importantly mentioning the SVN revision I'm reverting)
and commit that. I should probably use the git-svnrevert script, but I
haven't tried it yet.

On Tue, Oct 3, 2017 at 12:28 PM, Shahid, Asghar-ahmad
<Asghar-ahmad.Shahid at amd.com> wrote:
> Thanks Hans. Actually I did ran " ./utils/git-svn/git-svnrevert r314806" from my llvm folder according to the documentation here https://llvm.org/docs/GettingStarted.html#for-developers-to-work-with-git-svn.
> But seems it did not work as I expected .
>
> What is the correct way to revert properly?
>
> Regards,
> Shahid
>
>> -----Original Message-----
>> From: hwennborg at google.com [mailto:hwennborg at google.com] On Behalf
>> Of Hans Wennborg
>> Sent: Wednesday, October 4, 2017 12:04 AM
>> To: Shahid, Asghar-ahmad <Asghar-ahmad.Shahid at amd.com>
>> Cc: llvm-commits <llvm-commits at lists.llvm.org>
>> Subject: Re: [llvm] r314806 - [SLP] Vectorize jumbled memory loads.
>>
>> Reverted in r314824.
>>
>> As you commented in https://reviews.llvm.org/D36130#887183 this broke
>> the buildbots. Please revert when that happens. Also, please test this
>> by bootstrappping Clang before committing again.
>>
>> On Tue, Oct 3, 2017 at 8:28 AM, Mohammad Shahid via llvm-commits
>> <llvm-commits at lists.llvm.org> wrote:
>> > Author: ashahid
>> > Date: Tue Oct  3 08:28:48 2017
>> > New Revision: 314806
>> >
>> > URL: http://llvm.org/viewvc/llvm-project?rev=314806&view=rev
>> > Log:
>> > [SLP] Vectorize jumbled memory loads.
>> >
>> > Summary:
>> > This patch tries to vectorize loads of consecutive memory accesses,
>> accessed
>> > in non-consecutive or jumbled way. An earlier attempt was made with
>> patch D26905
>> > which was reverted back due to some basic issue with representing the 'use
>> mask' of
>> > jumbled accesses.
>> >
>> > This patch fixes the mask representation by recording the 'use mask' in the
>> usertree entry.
>> >
>> > Change-Id: I9fe7f5045f065d84c126fa307ef6ebe0787296df
>> >
>> > Reviewers: mkuper, loladiro, Ayal, zvi, danielcdh
>> >
>> > Reviewed By: Ayal
>> >
>> > Subscribers: hans, mzolotukhin
>> >
>> > Differential Revision: https://reviews.llvm.org/D36130
>> >
>> > Added:
>> >     llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-shuffle-
>> placement.ll
>> > 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/jumbled-load-multiuse.ll
>> >     llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load.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=314806
>> &r1=314805&r2=314806&view=diff
>> >
>> ================================================================
>> ==============
>> > --- llvm/trunk/include/llvm/Analysis/LoopAccessAnalysis.h (original)
>> > +++ llvm/trunk/include/llvm/Analysis/LoopAccessAnalysis.h Tue Oct  3
>> 08:28:48 2017
>> > @@ -667,6 +667,21 @@ int64_t getPtrStride(PredicatedScalarEvo
>> >                       const ValueToValueMap &StridesMap = ValueToValueMap(),
>> >                       bool Assume = false, bool ShouldCheckWrap = true);
>> >
>> > +/// \brief Attempt to sort the 'loads' in \p VL and return the sorted values
>> in
>> > +/// \p Sorted.
>> > +///
>> > +/// Returns 'false' if sorting is not legal or feasible, otherwise returns
>> > +/// 'true'. If \p Mask is not null, it also returns the \p Mask which is the
>> > +/// shuffle mask for actual memory access order.
>> > +///
>> > +/// For example, for a given VL of memory accesses in program order,
>> a[i+2],
>> > +/// a[i+0], a[i+1] and a[i+3], this function will sort the VL and save the
>> > +/// sorted value in 'Sorted' as a[i+0], a[i+1], a[i+2], a[i+3] and saves the
>> > +/// mask for actual memory accesses in program order in 'Mask' as
>> <2,0,1,3>
>> > +bool sortLoadAccesses(ArrayRef<Value *> VL, const DataLayout &DL,
>> > +    ScalarEvolution &SE, SmallVectorImpl<Value *> &Sorted,
>> > +    SmallVectorImpl<unsigned> *Mask = nullptr);
>> > +
>> >  /// \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=314806&r1=314
>> 805&r2=314806&view=diff
>> >
>> ================================================================
>> ==============
>> > --- llvm/trunk/lib/Analysis/LoopAccessAnalysis.cpp (original)
>> > +++ llvm/trunk/lib/Analysis/LoopAccessAnalysis.cpp Tue Oct  3 08:28:48
>> 2017
>> > @@ -1107,6 +1107,77 @@ static unsigned getAddressSpaceOperand(V
>> >    return -1;
>> >  }
>> >
>> > +// TODO:This API can be improved by using the permutation of given
>> width as the
>> > +// accesses are entered into the map.
>> > +bool llvm::sortLoadAccesses(ArrayRef<Value *> VL, const DataLayout &DL,
>> > +                           ScalarEvolution &SE,
>> > +                           SmallVectorImpl<Value *> &Sorted,
>> > +                           SmallVectorImpl<unsigned> *Mask) {
>> > +  SmallVector<std::pair<int64_t, Value *>, 4> OffValPairs;
>> > +  OffValPairs.reserve(VL.size());
>> > +  Sorted.reserve(VL.size());
>> > +
>> > +  // Walk over the pointers, and map each of them to an offset relative to
>> > +  // first pointer in the array.
>> > +  Value *Ptr0 = getPointerOperand(VL[0]);
>> > +  const SCEV *Scev0 = SE.getSCEV(Ptr0);
>> > +  Value *Obj0 = GetUnderlyingObject(Ptr0, DL);
>> > +  PointerType *PtrTy = dyn_cast<PointerType>(Ptr0->getType());
>> > +  uint64_t Size = DL.getTypeAllocSize(PtrTy->getElementType());
>> > +
>> > +  for (auto *Val : VL) {
>> > +    // The only kind of access we care about here is load.
>> > +    if (!isa<LoadInst>(Val))
>> > +      return false;
>> > +
>> > +    Value *Ptr = getPointerOperand(Val);
>> > +    assert(Ptr && "Expected value to have a pointer operand.");
>> > +    // 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 SCEVConstant *Diff =
>> > +        dyn_cast<SCEVConstant>(SE.getMinusSCEV(SE.getSCEV(Ptr), 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 || static_cast<unsigned>(Diff->getAPInt().abs().getSExtValue()) >
>> > +                     (VL.size() - 1) * Size)
>> > +      return false;
>> > +
>> > +    OffValPairs.emplace_back(Diff->getAPInt().getSExtValue(), Val);
>> > +  }
>> > +  SmallVector<unsigned, 4> UseOrder(VL.size());
>> > +  for (unsigned i = 0; i < VL.size(); i++) {
>> > +    UseOrder[i] = i;
>> > +  }
>> > +
>> > +  // Sort the memory accesses and keep the order of their uses in
>> UseOrder.
>> > +  std::sort(UseOrder.begin(), UseOrder.end(),
>> > +            [&OffValPairs](unsigned Left, unsigned Right) {
>> > +            return OffValPairs[Left].first < OffValPairs[Right].first;
>> > +            });
>> > +
>> > +  for (unsigned i = 0; i < VL.size(); i++)
>> > +    Sorted.emplace_back(OffValPairs[UseOrder[i]].second);
>> > +
>> > +  // Sort UseOrder to compute the Mask.
>> > +  if (Mask) {
>> > +    Mask->reserve(VL.size());
>> > +    for (unsigned i = 0; i < VL.size(); i++)
>> > +      Mask->emplace_back(i);
>> > +    std::sort(Mask->begin(), Mask->end(),
>> > +              [&UseOrder](unsigned Left, unsigned Right) {
>> > +              return UseOrder[Left] < UseOrder[Right];
>> > +              });
>> > +  }
>> > +
>> > +  return true;
>> > +}
>> > +
>> > +
>> >  /// Returns true if the memory operations \p A and \p B are consecutive.
>> >  bool llvm::isConsecutiveAccess(Value *A, Value *B, const DataLayout &DL,
>> >                                 ScalarEvolution &SE, bool CheckType) {
>> >
>> > Modified: llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp
>> > URL: http://llvm.org/viewvc/llvm-
>> project/llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp?rev=314806
>> &r1=314805&r2=314806&view=diff
>> >
>> ================================================================
>> ==============
>> > --- llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp (original)
>> > +++ llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp Tue Oct  3
>> 08:28:48 2017
>> > @@ -637,17 +637,23 @@ private:
>> >    int getEntryCost(TreeEntry *E);
>> >
>> >    /// This is the recursive part of buildTree.
>> > -  void buildTree_rec(ArrayRef<Value *> Roots, unsigned Depth, int);
>> > +  void buildTree_rec(ArrayRef<Value *> Roots, unsigned Depth, int
>> UserIndx = -1,
>> > +                     int OpdNum = 0);
>> >
>> >    /// \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;
>> >
>> > -  /// Vectorize a single entry in the tree.
>> > -  Value *vectorizeTree(TreeEntry *E);
>> > -
>> > -  /// Vectorize a single entry in the tree, starting in \p VL.
>> > -  Value *vectorizeTree(ArrayRef<Value *> VL);
>> > +  /// Vectorize a single entry in the tree.\p OpdNum indicate the ordinality
>> of
>> > +  /// operand corrsponding to this tree entry \p E for the user tree entry
>> > +  /// indicated by \p UserIndx.
>> > +  //  In other words, "E == TreeEntry[UserIndx].getOperand(OpdNum)".
>> > +  Value *vectorizeTree(TreeEntry *E, int OpdNum = 0, int UserIndx = -1);
>> > +
>> > +  /// Vectorize a single entry in the tree, starting in \p VL.\p OpdNum
>> indicate
>> > +  /// the ordinality of operand corrsponding to the \p VL of scalar values
>> for the
>> > +  /// user indicated by \p UserIndx this \p VL feeds into.
>> > +  Value *vectorizeTree(ArrayRef<Value *> VL, int OpdNum = 0, int
>> UserIndx = -1);
>> >
>> >    /// \returns the pointer to the vectorized value if \p VL is already
>> >    /// vectorized, or NULL. They may happen in cycles.
>> > @@ -685,7 +691,7 @@ private:
>> >                                        SmallVectorImpl<Value *> &Left,
>> >                                        SmallVectorImpl<Value *> &Right);
>> >    struct TreeEntry {
>> > -    TreeEntry(std::vector<TreeEntry> &Container) : Container(Container) {}
>> > +    TreeEntry(std::vector<TreeEntry> &Container) : ShuffleMask(),
>> Container(Container) {}
>> >
>> >      /// \returns true if the scalars in VL are equal to this entry.
>> >      bool isSame(ArrayRef<Value *> VL) const {
>> > @@ -693,6 +699,16 @@ private:
>> >        return std::equal(VL.begin(), VL.end(), Scalars.begin());
>> >      }
>> >
>> > +    /// \returns true if the scalars in VL are found in this tree entry.
>> > +    bool isFoundJumbled(ArrayRef<Value *> VL, const DataLayout &DL,
>> > +        ScalarEvolution &SE) const {
>> > +      assert(VL.size() == Scalars.size() && "Invalid size");
>> > +      SmallVector<Value *, 8> List;
>> > +      if (!sortLoadAccesses(VL, DL, SE, List))
>> > +        return false;
>> > +      return std::equal(List.begin(), List.end(), Scalars.begin());
>> > +    }
>> > +
>> >      /// A vector of scalars.
>> >      ValueList Scalars;
>> >
>> > @@ -702,6 +718,14 @@ private:
>> >      /// Do we need to gather this sequence ?
>> >      bool NeedToGather = false;
>> >
>> > +    /// Records optional shuffle mask for the uses of jumbled memory
>> accesses.
>> > +    /// For example, a non-empty ShuffleMask[1] represents the
>> permutation of
>> > +    /// lanes that operand #1 of this vectorized instruction should undergo
>> > +    /// before feeding this vectorized instruction, whereas an empty
>> > +    /// ShuffleMask[0] indicates that the lanes of operand #0 of this
>> vectorized
>> > +    /// instruction need not be permuted at all.
>> > +    SmallVector<unsigned, 4> ShuffleMask[3];
>> > +
>> >      /// Points back to the VectorizableTree.
>> >      ///
>> >      /// Only used for Graphviz right now.  Unfortunately
>> GraphTrait::NodeRef has
>> > @@ -717,12 +741,25 @@ private:
>> >
>> >    /// Create a new VectorizableTree entry.
>> >    TreeEntry *newTreeEntry(ArrayRef<Value *> VL, bool Vectorized,
>> > -                          int &UserTreeIdx) {
>> > +                          int &UserTreeIdx, const InstructionsState &S,
>> > +                          ArrayRef<unsigned> ShuffleMask = None,
>> > +                          int OpdNum = 0) {
>> > +    assert((!Vectorized || S.Opcode != 0) &&
>> > +           "Vectorized TreeEntry without opcode");
>> >      VectorizableTree.emplace_back(VectorizableTree);
>> > +
>> >      int idx = VectorizableTree.size() - 1;
>> >      TreeEntry *Last = &VectorizableTree[idx];
>> >      Last->Scalars.insert(Last->Scalars.begin(), VL.begin(), VL.end());
>> >      Last->NeedToGather = !Vectorized;
>> > +
>> > +    TreeEntry *UserEntry = &VectorizableTree[UserTreeIdx];
>> > +    if (!ShuffleMask.empty()) {
>> > +      assert(UserEntry->ShuffleMask[OpdNum].empty() && "Mask already
>> present!");
>> > +      UserEntry->ShuffleMask[OpdNum].insert(
>> > +          UserEntry->ShuffleMask[OpdNum].begin(), ShuffleMask.begin(),
>> > +          ShuffleMask.end());
>> > +    }
>> >      if (Vectorized) {
>> >        for (int i = 0, e = VL.size(); i != e; ++i) {
>> >          assert(!getTreeEntry(VL[i]) && "Scalar already in tree!");
>> > @@ -1373,34 +1410,34 @@ void BoUpSLP::buildTree(ArrayRef<Value *
>> >  }
>> >
>> >  void BoUpSLP::buildTree_rec(ArrayRef<Value *> VL, unsigned Depth,
>> > -                            int UserTreeIdx) {
>> > +                            int UserTreeIdx, int OpdNum) {
>> >    assert((allConstant(VL) || allSameType(VL)) && "Invalid types!");
>> >
>> >    InstructionsState S = getSameOpcode(VL);
>> >    if (Depth == RecursionMaxDepth) {
>> >      DEBUG(dbgs() << "SLP: Gathering due to max recursion depth.\n");
>> > -    newTreeEntry(VL, false, UserTreeIdx);
>> > +    newTreeEntry(VL, false, UserTreeIdx, S);
>> >      return;
>> >    }
>> >
>> >    // Don't handle vectors.
>> >    if (S.OpValue->getType()->isVectorTy()) {
>> >      DEBUG(dbgs() << "SLP: Gathering due to vector type.\n");
>> > -    newTreeEntry(VL, false, UserTreeIdx);
>> > +    newTreeEntry(VL, false, UserTreeIdx, S);
>> >      return;
>> >    }
>> >
>> >    if (StoreInst *SI = dyn_cast<StoreInst>(S.OpValue))
>> >      if (SI->getValueOperand()->getType()->isVectorTy()) {
>> >        DEBUG(dbgs() << "SLP: Gathering due to store vector type.\n");
>> > -      newTreeEntry(VL, false, UserTreeIdx);
>> > +      newTreeEntry(VL, false, UserTreeIdx, S);
>> >        return;
>> >      }
>> >
>> >    // If all of the operands are identical or constant we have a simple
>> solution.
>> >    if (allConstant(VL) || isSplat(VL) || !allSameBlock(VL) || !S.Opcode) {
>> >      DEBUG(dbgs() << "SLP: Gathering due to C,S,B,O. \n");
>> > -    newTreeEntry(VL, false, UserTreeIdx);
>> > +    newTreeEntry(VL, false, UserTreeIdx, S);
>> >      return;
>> >    }
>> >
>> > @@ -1412,7 +1449,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >      if (EphValues.count(VL[i])) {
>> >        DEBUG(dbgs() << "SLP: The instruction (" << *VL[i] <<
>> >              ") is ephemeral.\n");
>> > -      newTreeEntry(VL, false, UserTreeIdx);
>> > +      newTreeEntry(VL, false, UserTreeIdx, S);
>> >        return;
>> >      }
>> >    }
>> > @@ -1423,7 +1460,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >        DEBUG(dbgs() << "SLP: \tChecking bundle: " << *VL[i] << ".\n");
>> >        if (E->Scalars[i] != VL[i]) {
>> >          DEBUG(dbgs() << "SLP: Gathering due to partial overlap.\n");
>> > -        newTreeEntry(VL, false, UserTreeIdx);
>> > +        newTreeEntry(VL, false, UserTreeIdx, S);
>> >          return;
>> >        }
>> >      }
>> > @@ -1442,7 +1479,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >      if (getTreeEntry(I)) {
>> >        DEBUG(dbgs() << "SLP: The instruction (" << *VL[i] <<
>> >              ") is already in tree.\n");
>> > -      newTreeEntry(VL, false, UserTreeIdx);
>> > +      newTreeEntry(VL, false, UserTreeIdx, S);
>> >        return;
>> >      }
>> >    }
>> > @@ -1452,7 +1489,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >    for (unsigned i = 0, e = VL.size(); i != e; ++i) {
>> >      if (MustGather.count(VL[i])) {
>> >        DEBUG(dbgs() << "SLP: Gathering due to gathered scalar.\n");
>> > -      newTreeEntry(VL, false, UserTreeIdx);
>> > +      newTreeEntry(VL, false, UserTreeIdx, S);
>> >        return;
>> >      }
>> >    }
>> > @@ -1466,7 +1503,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >      // Don't go into unreachable blocks. They may contain instructions with
>> >      // dependency cycles which confuse the final scheduling.
>> >      DEBUG(dbgs() << "SLP: bundle in unreachable block.\n");
>> > -    newTreeEntry(VL, false, UserTreeIdx);
>> > +    newTreeEntry(VL, false, UserTreeIdx, S);
>> >      return;
>> >    }
>> >
>> > @@ -1475,7 +1512,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >      for (unsigned j = i + 1; j < e; ++j)
>> >        if (VL[i] == VL[j]) {
>> >          DEBUG(dbgs() << "SLP: Scalar used twice in bundle.\n");
>> > -        newTreeEntry(VL, false, UserTreeIdx);
>> > +        newTreeEntry(VL, false, UserTreeIdx, S);
>> >          return;
>> >        }
>> >
>> > @@ -1490,7 +1527,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >      assert((!BS.getScheduleData(VL0) ||
>> >              !BS.getScheduleData(VL0)->isPartOfBundle()) &&
>> >             "tryScheduleBundle should cancelScheduling on failure");
>> > -    newTreeEntry(VL, false, UserTreeIdx);
>> > +    newTreeEntry(VL, false, UserTreeIdx, S);
>> >      return;
>> >    }
>> >    DEBUG(dbgs() << "SLP: We are able to schedule this bundle.\n");
>> > @@ -1509,12 +1546,12 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >            if (Term) {
>> >              DEBUG(dbgs() << "SLP: Need to swizzle PHINodes (TerminatorInst
>> use).\n");
>> >              BS.cancelScheduling(VL, VL0);
>> > -            newTreeEntry(VL, false, UserTreeIdx);
>> > +            newTreeEntry(VL, false, UserTreeIdx, S);
>> >              return;
>> >            }
>> >          }
>> >
>> > -      newTreeEntry(VL, true, UserTreeIdx);
>> > +      newTreeEntry(VL, true, UserTreeIdx, S);
>> >        DEBUG(dbgs() << "SLP: added a vector of PHINodes.\n");
>> >
>> >        for (unsigned i = 0, e = PH->getNumIncomingValues(); i < e; ++i) {
>> > @@ -1524,7 +1561,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >            Operands.push_back(cast<PHINode>(j)->getIncomingValueForBlock(
>> >                PH->getIncomingBlock(i)));
>> >
>> > -        buildTree_rec(Operands, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Operands, Depth + 1, UserTreeIdx, i);
>> >        }
>> >        return;
>> >      }
>> > @@ -1536,7 +1573,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >        } else {
>> >          BS.cancelScheduling(VL, VL0);
>> >        }
>> > -      newTreeEntry(VL, Reuse, UserTreeIdx);
>> > +      newTreeEntry(VL, Reuse, UserTreeIdx, S);
>> >        return;
>> >      }
>> >      case Instruction::Load: {
>> > @@ -1551,7 +1588,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >        if (DL->getTypeSizeInBits(ScalarTy) !=
>> >            DL->getTypeAllocSizeInBits(ScalarTy)) {
>> >          BS.cancelScheduling(VL, VL0);
>> > -        newTreeEntry(VL, false, UserTreeIdx);
>> > +        newTreeEntry(VL, false, UserTreeIdx, S);
>> >          DEBUG(dbgs() << "SLP: Gathering loads of non-packed type.\n");
>> >          return;
>> >        }
>> > @@ -1562,15 +1599,13 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          LoadInst *L = cast<LoadInst>(VL[i]);
>> >          if (!L->isSimple()) {
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            DEBUG(dbgs() << "SLP: Gathering non-simple loads.\n");
>> >            return;
>> >          }
>> >        }
>> >
>> >        // 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) {
>> > @@ -1584,7 +1619,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >
>> >        if (Consecutive) {
>> >          ++NumLoadsWantToKeepOrder;
>> > -        newTreeEntry(VL, true, UserTreeIdx);
>> > +        newTreeEntry(VL, true, UserTreeIdx, S);
>> >          DEBUG(dbgs() << "SLP: added a vector of loads.\n");
>> >          return;
>> >        }
>> > @@ -1598,15 +1633,41 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >              break;
>> >            }
>> >
>> > -      BS.cancelScheduling(VL, VL0);
>> > -      newTreeEntry(VL, false, UserTreeIdx);
>> > -
>> >        if (ReverseConsecutive) {
>> > -        ++NumLoadsWantToChangeOrder;
>> >          DEBUG(dbgs() << "SLP: Gathering reversed loads.\n");
>> > -      } else {
>> > -        DEBUG(dbgs() << "SLP: Gathering non-consecutive loads.\n");
>> > +        ++NumLoadsWantToChangeOrder;
>> > +        BS.cancelScheduling(VL, VL0);
>> > +        newTreeEntry(VL, false, UserTreeIdx, S);
>> > +        return;
>> >        }
>> > +
>> > +      if (VL.size() > 2) {
>> > +        bool ShuffledLoads = true;
>> > +        SmallVector<Value *, 8> Sorted;
>> > +        SmallVector<unsigned, 4> Mask;
>> > +        if (sortLoadAccesses(VL, *DL, *SE, Sorted, &Mask)) {
>> > +          auto NewVL = makeArrayRef(Sorted.begin(), Sorted.end());
>> > +          for (unsigned i = 0, e = NewVL.size() - 1; i < e; ++i) {
>> > +            if (!isConsecutiveAccess(NewVL[i], NewVL[i + 1], *DL, *SE)) {
>> > +              ShuffledLoads = false;
>> > +              break;
>> > +            }
>> > +          }
>> > +          // TODO: Tracking how many load wants to have arbitrary shuffled
>> order
>> > +          // would be usefull.
>> > +          if (ShuffledLoads) {
>> > +            DEBUG(dbgs() << "SLP: added a vector of loads which needs "
>> > +                            "permutation of loaded lanes.\n");
>> > +            newTreeEntry(NewVL, true, UserTreeIdx, S,
>> > +                         makeArrayRef(Mask.begin(), Mask.end()), OpdNum);
>> > +            return;
>> > +          }
>> > +        }
>> > +      }
>> > +
>> > +      DEBUG(dbgs() << "SLP: Gathering non-consecutive loads.\n");
>> > +      BS.cancelScheduling(VL, VL0);
>> > +      newTreeEntry(VL, false, UserTreeIdx, S);
>> >        return;
>> >      }
>> >      case Instruction::ZExt:
>> > @@ -1626,12 +1687,12 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          Type *Ty = cast<Instruction>(VL[i])->getOperand(0)->getType();
>> >          if (Ty != SrcTy || !isValidElementType(Ty)) {
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            DEBUG(dbgs() << "SLP: Gathering casts with different src types.\n");
>> >            return;
>> >          }
>> >        }
>> > -      newTreeEntry(VL, true, UserTreeIdx);
>> > +      newTreeEntry(VL, true, UserTreeIdx, S);
>> >        DEBUG(dbgs() << "SLP: added a vector of casts.\n");
>> >
>> >        for (unsigned i = 0, e = VL0->getNumOperands(); i < e; ++i) {
>> > @@ -1640,7 +1701,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          for (Value *j : VL)
>> >            Operands.push_back(cast<Instruction>(j)->getOperand(i));
>> >
>> > -        buildTree_rec(Operands, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Operands, Depth + 1, UserTreeIdx, i);
>> >        }
>> >        return;
>> >      }
>> > @@ -1654,13 +1715,13 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          if (Cmp->getPredicate() != P0 ||
>> >              Cmp->getOperand(0)->getType() != ComparedTy) {
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            DEBUG(dbgs() << "SLP: Gathering cmp with different predicate.\n");
>> >            return;
>> >          }
>> >        }
>> >
>> > -      newTreeEntry(VL, true, UserTreeIdx);
>> > +      newTreeEntry(VL, true, UserTreeIdx, S);
>> >        DEBUG(dbgs() << "SLP: added a vector of compares.\n");
>> >
>> >        for (unsigned i = 0, e = VL0->getNumOperands(); i < e; ++i) {
>> > @@ -1669,7 +1730,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          for (Value *j : VL)
>> >            Operands.push_back(cast<Instruction>(j)->getOperand(i));
>> >
>> > -        buildTree_rec(Operands, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Operands, Depth + 1, UserTreeIdx, i);
>> >        }
>> >        return;
>> >      }
>> > @@ -1692,7 +1753,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >      case Instruction::And:
>> >      case Instruction::Or:
>> >      case Instruction::Xor:
>> > -      newTreeEntry(VL, true, UserTreeIdx);
>> > +      newTreeEntry(VL, true, UserTreeIdx, S);
>> >        DEBUG(dbgs() << "SLP: added a vector of bin op.\n");
>> >
>> >        // Sort operands of the instructions so that each side is more likely to
>> > @@ -1701,7 +1762,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          ValueList Left, Right;
>> >          reorderInputsAccordingToOpcode(S.Opcode, VL, Left, Right);
>> >          buildTree_rec(Left, Depth + 1, UserTreeIdx);
>> > -        buildTree_rec(Right, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Right, Depth + 1, UserTreeIdx, 1);
>> >          return;
>> >        }
>> >
>> > @@ -1711,7 +1772,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          for (Value *j : VL)
>> >            Operands.push_back(cast<Instruction>(j)->getOperand(i));
>> >
>> > -        buildTree_rec(Operands, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Operands, Depth + 1, UserTreeIdx, i);
>> >        }
>> >        return;
>> >
>> > @@ -1721,7 +1782,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          if (cast<Instruction>(VL[j])->getNumOperands() != 2) {
>> >            DEBUG(dbgs() << "SLP: not-vectorizable GEP (nested indexes).\n");
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            return;
>> >          }
>> >        }
>> > @@ -1734,7 +1795,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          if (Ty0 != CurTy) {
>> >            DEBUG(dbgs() << "SLP: not-vectorizable GEP (different types).\n");
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            return;
>> >          }
>> >        }
>> > @@ -1746,12 +1807,12 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >            DEBUG(
>> >                dbgs() << "SLP: not-vectorizable GEP (non-constant indexes).\n");
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            return;
>> >          }
>> >        }
>> >
>> > -      newTreeEntry(VL, true, UserTreeIdx);
>> > +      newTreeEntry(VL, true, UserTreeIdx, S);
>> >        DEBUG(dbgs() << "SLP: added a vector of GEPs.\n");
>> >        for (unsigned i = 0, e = 2; i < e; ++i) {
>> >          ValueList Operands;
>> > @@ -1759,7 +1820,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          for (Value *j : VL)
>> >            Operands.push_back(cast<Instruction>(j)->getOperand(i));
>> >
>> > -        buildTree_rec(Operands, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Operands, Depth + 1, UserTreeIdx, i);
>> >        }
>> >        return;
>> >      }
>> > @@ -1768,12 +1829,12 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >        for (unsigned i = 0, e = VL.size() - 1; i < e; ++i)
>> >          if (!isConsecutiveAccess(VL[i], VL[i + 1], *DL, *SE)) {
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            DEBUG(dbgs() << "SLP: Non-consecutive store.\n");
>> >            return;
>> >          }
>> >
>> > -      newTreeEntry(VL, true, UserTreeIdx);
>> > +      newTreeEntry(VL, true, UserTreeIdx, S);
>> >        DEBUG(dbgs() << "SLP: added a vector of stores.\n");
>> >
>> >        ValueList Operands;
>> > @@ -1791,7 +1852,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >        Intrinsic::ID ID = getVectorIntrinsicIDForCall(CI, TLI);
>> >        if (!isTriviallyVectorizable(ID)) {
>> >          BS.cancelScheduling(VL, VL0);
>> > -        newTreeEntry(VL, false, UserTreeIdx);
>> > +        newTreeEntry(VL, false, UserTreeIdx, S);
>> >          DEBUG(dbgs() << "SLP: Non-vectorizable call.\n");
>> >          return;
>> >        }
>> > @@ -1805,7 +1866,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >              getVectorIntrinsicIDForCall(CI2, TLI) != ID ||
>> >              !CI->hasIdenticalOperandBundleSchema(*CI2)) {
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            DEBUG(dbgs() << "SLP: mismatched calls:" << *CI << "!=" << *VL[i]
>> >                         << "\n");
>> >            return;
>> > @@ -1816,7 +1877,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >            Value *A1J = CI2->getArgOperand(1);
>> >            if (A1I != A1J) {
>> >              BS.cancelScheduling(VL, VL0);
>> > -            newTreeEntry(VL, false, UserTreeIdx);
>> > +            newTreeEntry(VL, false, UserTreeIdx, S);
>> >              DEBUG(dbgs() << "SLP: mismatched arguments in call:" << *CI
>> >                           << " argument "<< A1I<<"!=" << A1J
>> >                           << "\n");
>> > @@ -1829,14 +1890,14 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >                          CI->op_begin() + CI->getBundleOperandsEndIndex(),
>> >                          CI2->op_begin() + CI2->getBundleOperandsStartIndex())) {
>> >            BS.cancelScheduling(VL, VL0);
>> > -          newTreeEntry(VL, false, UserTreeIdx);
>> > +          newTreeEntry(VL, false, UserTreeIdx, S);
>> >            DEBUG(dbgs() << "SLP: mismatched bundle operands in calls:" << *CI
>> << "!="
>> >                         << *VL[i] << '\n');
>> >            return;
>> >          }
>> >        }
>> >
>> > -      newTreeEntry(VL, true, UserTreeIdx);
>> > +      newTreeEntry(VL, true, UserTreeIdx, S);
>> >        for (unsigned i = 0, e = CI->getNumArgOperands(); i != e; ++i) {
>> >          ValueList Operands;
>> >          // Prepare the operand vector.
>> > @@ -1844,7 +1905,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >            CallInst *CI2 = dyn_cast<CallInst>(j);
>> >            Operands.push_back(CI2->getArgOperand(i));
>> >          }
>> > -        buildTree_rec(Operands, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Operands, Depth + 1, UserTreeIdx, i);
>> >        }
>> >        return;
>> >      }
>> > @@ -1853,11 +1914,11 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >        // then do not vectorize this instruction.
>> >        if (!S.IsAltShuffle) {
>> >          BS.cancelScheduling(VL, VL0);
>> > -        newTreeEntry(VL, false, UserTreeIdx);
>> > +        newTreeEntry(VL, false, UserTreeIdx, S);
>> >          DEBUG(dbgs() << "SLP: ShuffleVector are not vectorized.\n");
>> >          return;
>> >        }
>> > -      newTreeEntry(VL, true, UserTreeIdx);
>> > +      newTreeEntry(VL, true, UserTreeIdx, S);
>> >        DEBUG(dbgs() << "SLP: added a ShuffleVector op.\n");
>> >
>> >        // Reorder operands if reordering would enable vectorization.
>> > @@ -1865,7 +1926,7 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          ValueList Left, Right;
>> >          reorderAltShuffleOperands(S.Opcode, VL, Left, Right);
>> >          buildTree_rec(Left, Depth + 1, UserTreeIdx);
>> > -        buildTree_rec(Right, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Right, Depth + 1, UserTreeIdx, 1);
>> >          return;
>> >        }
>> >
>> > @@ -1875,13 +1936,13 @@ void BoUpSLP::buildTree_rec(ArrayRef<Val
>> >          for (Value *j : VL)
>> >            Operands.push_back(cast<Instruction>(j)->getOperand(i));
>> >
>> > -        buildTree_rec(Operands, Depth + 1, UserTreeIdx);
>> > +        buildTree_rec(Operands, Depth + 1, UserTreeIdx, i);
>> >        }
>> >        return;
>> >
>> >      default:
>> >        BS.cancelScheduling(VL, VL0);
>> > -      newTreeEntry(VL, false, UserTreeIdx);
>> > +      newTreeEntry(VL, false, UserTreeIdx, S);
>> >        DEBUG(dbgs() << "SLP: Gathering unknown instruction.\n");
>> >        return;
>> >    }
>> > @@ -2719,12 +2780,15 @@ Value *BoUpSLP::alreadyVectorized(ArrayR
>> >    return nullptr;
>> >  }
>> >
>> > -Value *BoUpSLP::vectorizeTree(ArrayRef<Value *> VL) {
>> > +Value *BoUpSLP::vectorizeTree(ArrayRef<Value *> VL, int OpdNum, int
>> UserIndx) {
>> >    InstructionsState S = getSameOpcode(VL);
>> >    if (S.Opcode) {
>> >      if (TreeEntry *E = getTreeEntry(S.OpValue)) {
>> > -      if (E->isSame(VL))
>> > -        return vectorizeTree(E);
>> > +      TreeEntry *UserTreeEntry = &VectorizableTree[UserIndx];
>> > +      if (E->isSame(VL) ||
>> > +          (UserTreeEntry && !UserTreeEntry->ShuffleMask[OpdNum].empty()
>> &&
>> > +           E->isFoundJumbled(VL, *DL, *SE)))
>> > +        return vectorizeTree(E, OpdNum, UserIndx);
>> >      }
>> >    }
>> >
>> > @@ -2736,9 +2800,10 @@ Value *BoUpSLP::vectorizeTree(ArrayRef<V
>> >    return Gather(VL, VecTy);
>> >  }
>> >
>> > -Value *BoUpSLP::vectorizeTree(TreeEntry *E) {
>> > +Value *BoUpSLP::vectorizeTree(TreeEntry *E, int OpdNum, int UserIndx) {
>> >    IRBuilder<>::InsertPointGuard Guard(Builder);
>> >
>> > +  TreeEntry *UserTreeEntry = nullptr;
>> >    if (E->VectorizedValue) {
>> >      DEBUG(dbgs() << "SLP: Diamond merged for " << *E->Scalars[0] <<
>> ".\n");
>> >      return E->VectorizedValue;
>> > @@ -2758,6 +2823,10 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >      return V;
>> >    }
>> >
>> > +  assert(ScalarToTreeEntry.count(E->Scalars[0]) &&
>> > +         "Expected user tree entry, missing!");
>> > +  int CurrIndx = ScalarToTreeEntry[E->Scalars[0]];
>> > +
>> >    unsigned ShuffleOrOp = S.IsAltShuffle ?
>> >             (unsigned) Instruction::ShuffleVector : S.Opcode;
>> >    switch (ShuffleOrOp) {
>> > @@ -2787,7 +2856,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >
>> >          Builder.SetInsertPoint(IBB->getTerminator());
>> >          Builder.SetCurrentDebugLocation(PH->getDebugLoc());
>> > -        Value *Vec = vectorizeTree(Operands);
>> > +        Value *Vec = vectorizeTree(Operands, i, CurrIndx);
>> >          NewPhi->addIncoming(Vec, IBB);
>> >        }
>> >
>> > @@ -2840,7 +2909,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >
>> >        setInsertPointAfterBundle(E->Scalars, VL0);
>> >
>> > -      Value *InVec = vectorizeTree(INVL);
>> > +      Value *InVec = vectorizeTree(INVL, 0, CurrIndx);
>> >
>> >        if (Value *V = alreadyVectorized(E->Scalars, VL0))
>> >          return V;
>> > @@ -2861,8 +2930,8 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >
>> >        setInsertPointAfterBundle(E->Scalars, VL0);
>> >
>> > -      Value *L = vectorizeTree(LHSV);
>> > -      Value *R = vectorizeTree(RHSV);
>> > +      Value *L = vectorizeTree(LHSV, 0, CurrIndx);
>> > +      Value *R = vectorizeTree(RHSV, 1, CurrIndx);
>> >
>> >        if (Value *V = alreadyVectorized(E->Scalars, VL0))
>> >          return V;
>> > @@ -2889,9 +2958,9 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >
>> >        setInsertPointAfterBundle(E->Scalars, VL0);
>> >
>> > -      Value *Cond = vectorizeTree(CondVec);
>> > -      Value *True = vectorizeTree(TrueVec);
>> > -      Value *False = vectorizeTree(FalseVec);
>> > +      Value *Cond = vectorizeTree(CondVec, 0, CurrIndx);
>> > +      Value *True = vectorizeTree(TrueVec, 1, CurrIndx);
>> > +      Value *False = vectorizeTree(FalseVec, 2, CurrIndx);
>> >
>> >        if (Value *V = alreadyVectorized(E->Scalars, VL0))
>> >          return V;
>> > @@ -2932,8 +3001,8 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >
>> >        setInsertPointAfterBundle(E->Scalars, VL0);
>> >
>> > -      Value *LHS = vectorizeTree(LHSVL);
>> > -      Value *RHS = vectorizeTree(RHSVL);
>> > +      Value *LHS = vectorizeTree(LHSVL, 0, CurrIndx);
>> > +      Value *RHS = vectorizeTree(RHSVL, 1, CurrIndx);
>> >
>> >        if (Value *V = alreadyVectorized(E->Scalars, VL0))
>> >          return V;
>> > @@ -2954,7 +3023,17 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >        // sink them all the way down past store instructions.
>> >        setInsertPointAfterBundle(E->Scalars, VL0);
>> >
>> > -      LoadInst *LI = cast<LoadInst>(VL0);
>> > +      if(UserIndx != -1) {
>> > +        UserTreeEntry = &VectorizableTree[UserIndx];
>> > +      }
>> > +
>> > +      LoadInst *LI = NULL;
>> > +      if (UserTreeEntry && !UserTreeEntry->ShuffleMask[OpdNum].empty())
>> {
>> > +        LI = cast<LoadInst>(E->Scalars[0]);
>> > +      } else {
>> > +        LI = cast<LoadInst>(VL0);
>> > +      }
>> > +
>> >        Type *ScalarLoadTy = LI->getType();
>> >        unsigned AS = LI->getPointerAddressSpace();
>> >
>> > @@ -2976,7 +3055,24 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >        LI->setAlignment(Alignment);
>> >        E->VectorizedValue = LI;
>> >        ++NumVectorInstructions;
>> > -      return propagateMetadata(LI, E->Scalars);
>> > +      propagateMetadata(LI, E->Scalars);
>> > +
>> > +      if (UserTreeEntry && !UserTreeEntry->ShuffleMask[OpdNum].empty())
>> {
>> > +        SmallVector<Constant *, 8> Mask;
>> > +        for (unsigned Lane = 0, LE = UserTreeEntry-
>> >ShuffleMask[OpdNum].size();
>> > +             Lane != LE; ++Lane) {
>> > +          Mask.push_back(
>> > +              Builder.getInt32(UserTreeEntry->ShuffleMask[OpdNum][Lane]));
>> > +        }
>> > +        // Generate shuffle for jumbled memory access
>> > +        Value *Undef = UndefValue::get(VecTy);
>> > +        Value *Shuf = Builder.CreateShuffleVector((Value *)LI, Undef,
>> > +                                                  ConstantVector::get(Mask));
>> > +        E->VectorizedValue = Shuf;
>> > +        ++NumVectorInstructions;
>> > +        return Shuf;
>> > +      }
>> > +      return LI;
>> >      }
>> >      case Instruction::Store: {
>> >        StoreInst *SI = cast<StoreInst>(VL0);
>> > @@ -2989,7 +3085,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >
>> >        setInsertPointAfterBundle(E->Scalars, VL0);
>> >
>> > -      Value *VecValue = vectorizeTree(ScalarStoreValues);
>> > +      Value *VecValue = vectorizeTree(ScalarStoreValues, 0, CurrIndx);
>> >        Value *ScalarPtr = SI->getPointerOperand();
>> >        Value *VecPtr = Builder.CreateBitCast(ScalarPtr, VecTy-
>> >getPointerTo(AS));
>> >        StoreInst *S = Builder.CreateStore(VecValue, VecPtr);
>> > @@ -3015,7 +3111,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >        for (Value *V : E->Scalars)
>> >          Op0VL.push_back(cast<GetElementPtrInst>(V)->getOperand(0));
>> >
>> > -      Value *Op0 = vectorizeTree(Op0VL);
>> > +      Value *Op0 = vectorizeTree(Op0VL, 0, CurrIndx);
>> >
>> >        std::vector<Value *> OpVecs;
>> >        for (int j = 1, e = cast<GetElementPtrInst>(VL0)->getNumOperands(); j <
>> e;
>> > @@ -3024,7 +3120,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >          for (Value *V : E->Scalars)
>> >            OpVL.push_back(cast<GetElementPtrInst>(V)->getOperand(j));
>> >
>> > -        Value *OpVec = vectorizeTree(OpVL);
>> > +        Value *OpVec = vectorizeTree(OpVL, j, CurrIndx);
>> >          OpVecs.push_back(OpVec);
>> >        }
>> >
>> > @@ -3063,7 +3159,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >            OpVL.push_back(CEI->getArgOperand(j));
>> >          }
>> >
>> > -        Value *OpVec = vectorizeTree(OpVL);
>> > +        Value *OpVec = vectorizeTree(OpVL, j, CurrIndx);
>> >          DEBUG(dbgs() << "SLP: OpVec[" << j << "]: " << *OpVec << "\n");
>> >          OpVecs.push_back(OpVec);
>> >        }
>> > @@ -3094,8 +3190,8 @@ Value *BoUpSLP::vectorizeTree(TreeEntry
>> >        reorderAltShuffleOperands(S.Opcode, E->Scalars, LHSVL, RHSVL);
>> >        setInsertPointAfterBundle(E->Scalars, VL0);
>> >
>> > -      Value *LHS = vectorizeTree(LHSVL);
>> > -      Value *RHS = vectorizeTree(RHSVL);
>> > +      Value *LHS = vectorizeTree(LHSVL, 0, CurrIndx);
>> > +      Value *RHS = vectorizeTree(RHSVL, 1, CurrIndx);
>> >
>> >        if (Value *V = alreadyVectorized(E->Scalars, VL0))
>> >          return V;
>> > @@ -3195,9 +3291,14 @@ BoUpSLP::vectorizeTree(ExtraValueToDebug
>> >        continue;
>> >      TreeEntry *E = getTreeEntry(Scalar);
>> >      assert(E && "Invalid scalar");
>> > -    assert(!E->NeedToGather && "Extracting from a gather list");
>> > +    assert((!E->NeedToGather) && "Extracting from a gather list");
>> >
>> > -    Value *Vec = E->VectorizedValue;
>> > +    Value *Vec = dyn_cast<ShuffleVectorInst>(E->VectorizedValue);
>> > +    if (Vec && dyn_cast<LoadInst>(cast<Instruction>(Vec)->getOperand(0)))
>> {
>> > +      Vec = cast<Instruction>(E->VectorizedValue)->getOperand(0);
>> > +    } else {
>> > +      Vec = E->VectorizedValue;
>> > +    }
>> >      assert(Vec && "Can't find vectorizable value");
>> >
>> >      Value *Lane = Builder.getInt32(ExternalUse.Lane);
>> >
>> > 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=314806&r1=314805&r2=314806&view=diff
>> >
>> ================================================================
>> ==============
>> > --- llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-multiuse.ll
>> (original)
>> > +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-
>> multiuse.ll Tue Oct  3 08:28:48 2017
>> > @@ -11,20 +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 i32, i32* getelementptr inbounds ([4
>> x i32], [4 x i32]* @b, i64 0, i32 1), align 4
>> > -; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* getelementptr inbounds ([4
>> x i32], [4 x i32]* @b, i64 0, i32 2), align 4
>> > -; CHECK-NEXT:    [[TMP3:%.*]] = load i32, i32* getelementptr inbounds ([4
>> x i32], [4 x i32]* @b, i64 0, i32 3), align 4
>> > -; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP1]], i32 0
>> > -; CHECK-NEXT:    [[TMP5:%.*]] = insertelement <4 x i32> [[TMP4]], i32
>> [[TMP2]], i32 1
>> > -; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x i32> [[TMP5]], i32
>> [[TMP3]], i32 2
>> > -; CHECK-NEXT:    [[TMP7:%.*]] = insertelement <4 x i32> [[TMP6]], i32
>> [[TMP0]], i32 3
>> > -; CHECK-NEXT:    [[TMP8:%.*]] = icmp sgt <4 x i32> [[TMP7]], zeroinitializer
>> > -; CHECK-NEXT:    [[TMP9:%.*]] = insertelement <4 x i32> [[TMP4]], i32
>> ptrtoint (i32 ()* @fn1 to i32), i32 1
>> > -; CHECK-NEXT:    [[TMP10:%.*]] = insertelement <4 x i32> [[TMP9]], i32
>> ptrtoint (i32 ()* @fn1 to i32), i32 2
>> > -; CHECK-NEXT:    [[TMP11:%.*]] = insertelement <4 x i32> [[TMP10]], i32 8,
>> i32 3
>> > -; CHECK-NEXT:    [[TMP12:%.*]] = select <4 x i1> [[TMP8]], <4 x i32>
>> [[TMP11]], <4 x i32> <i32 6, i32 0, i32 0, i32 0>
>> > -; CHECK-NEXT:    store <4 x i32> [[TMP12]], <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:    [[TMP1:%.*]] = shufflevector <4 x i32> [[TMP0]], <4 x i32>
>> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
>> > +; CHECK-NEXT:    [[TMP2:%.*]] = icmp sgt <4 x i32> [[TMP1]], zeroinitializer
>> > +; CHECK-NEXT:    [[TMP3:%.*]] = extractelement <4 x i32> [[TMP0]], i32 1
>> > +; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x i32> undef, i32
>> [[TMP3]], i32 0
>> > +; CHECK-NEXT:    [[TMP5:%.*]] = insertelement <4 x i32> [[TMP4]], i32
>> ptrtoint (i32 ()* @fn1 to i32), i32 1
>> > +; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x i32> [[TMP5]], i32
>> ptrtoint (i32 ()* @fn1 to i32), i32 2
>> > +; CHECK-NEXT:    [[TMP7:%.*]] = insertelement <4 x i32> [[TMP6]], i32 8,
>> i32 3
>> > +; CHECK-NEXT:    [[TMP8:%.*]] = select <4 x i1> [[TMP2]], <4 x i32>
>> [[TMP7]], <4 x i32> <i32 6, i32 0, i32 0, i32 0>
>> > +; CHECK-NEXT:    store <4 x i32> [[TMP8]], <4 x i32>* bitcast ([4 x i32]* @a
>> to <4 x i32>*), align 4
>> >  ; CHECK-NEXT:    ret i32 0
>> >  ;
>> >    entry:
>> >
>> > Added: 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=314806&view=auto
>> >
>> ================================================================
>> ==============
>> > --- llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-shuffle-
>> placement.ll (added)
>> > +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load-shuffle-
>> placement.ll Tue Oct  3 08:28:48 2017
>> > @@ -0,0 +1,68 @@
>> > +; NOTE: Assertions have been autogenerated by
>> utils/update_test_checks.py
>> > +; RUN: opt < %s -S -mtriple=x86_64-unknown -mattr=+avx -slp-vectorizer |
>> FileCheck %s
>> > +
>> > +
>> > +;void jumble (int * restrict A, int * restrict B) {
>> > +  ;  int tmp0 = A[10]*A[0];
>> > +  ;  int tmp1 = A[11]*A[1];
>> > +  ;  int tmp2 = A[12]*A[3];
>> > +  ;  int tmp3 = A[13]*A[2];
>> > +  ;  B[0] = tmp0;
>> > +  ;  B[1] = tmp1;
>> > +  ;  B[2] = tmp2;
>> > +  ;  B[3] = tmp3;
>> > +  ;}
>> > +  ; Function Attrs: norecurse nounwind uwtable
>> > +  define void @jumble(i32* noalias nocapture readonly %A, i32* noalias
>> nocapture %B) {
>> > +; CHECK-LABEL: @jumble(
>> > +; CHECK-NEXT:  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
>> > +; CHECK-NEXT:    [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 12
>> > +; CHECK-NEXT:    [[ARRAYIDX6:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 3
>> > +; CHECK-NEXT:    [[ARRAYIDX8:%.*]] = getelementptr inbounds i32, i32*
>> [[A]], i64 13
>> > +; 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
>> > +; 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
>> > +; CHECK-NEXT:    [[ARRAYIDX13:%.*]] = getelementptr inbounds i32, i32*
>> [[B]], i64 2
>> > +; CHECK-NEXT:    [[ARRAYIDX14:%.*]] = getelementptr inbounds i32, i32*
>> [[B]], i64 3
>> > +; 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:
>> > +  %arrayidx = getelementptr inbounds i32, i32* %A, i64 10
>> > +  %0 = load i32, i32* %arrayidx, align 4
>> > +  %1 = load i32, i32* %A, align 4
>> > +  %mul = mul nsw i32 %1, %0
>> > +  %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 11
>> > +  %2 = load i32, i32* %arrayidx2, align 4
>> > +  %arrayidx3 = getelementptr inbounds i32, i32* %A, i64 1
>> > +  %3 = load i32, i32* %arrayidx3, align 4
>> > +  %mul4 = mul nsw i32 %3, %2
>> > +  %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 12
>> > +  %4 = load i32, i32* %arrayidx5, align 4
>> > +  %arrayidx6 = getelementptr inbounds i32, i32* %A, i64 3
>> > +  %5 = load i32, i32* %arrayidx6, align 4
>> > +  %mul7 = mul nsw i32 %5, %4
>> > +  %arrayidx8 = getelementptr inbounds i32, i32* %A, i64 13
>> > +  %6 = load i32, i32* %arrayidx8, align 4
>> > +  %arrayidx9 = getelementptr inbounds i32, i32* %A, i64 2
>> > +  %7 = load i32, i32* %arrayidx9, align 4
>> > +  %mul10 = mul nsw i32 %7, %6
>> > +  store i32 %mul, i32* %B, align 4
>> > +  %arrayidx12 = getelementptr inbounds i32, i32* %B, i64 1
>> > +  store i32 %mul4, i32* %arrayidx12, align 4
>> > +  %arrayidx13 = getelementptr inbounds i32, i32* %B, i64 2
>> > +  store i32 %mul7, i32* %arrayidx13, align 4
>> > +  %arrayidx14 = getelementptr inbounds i32, i32* %B, i64 3
>> > +  store i32 %mul10, i32* %arrayidx14, align 4
>> > +  ret void
>> > +  }
>> > +
>> >
>> > 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=314806&r1=314805&r2=314806&view=diff
>> >
>> ================================================================
>> ==============
>> > --- llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load.ll (original)
>> > +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/jumbled-load.ll Tue Oct
>> 3 08:28:48 2017
>> > @@ -5,34 +5,27 @@
>> >
>> >  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:    [[IN_ADDR:%.*]] = getelementptr inbounds i32, i32*
>> [[IN:%.*]], i64 0
>> >  ; CHECK-NEXT:    [[GEP_1:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 3
>> > -; CHECK-NEXT:    [[LOAD_2:%.*]] = load i32, i32* [[GEP_1]], align 4
>> >  ; CHECK-NEXT:    [[GEP_2:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 1
>> > -; CHECK-NEXT:    [[LOAD_3:%.*]] = load i32, i32* [[GEP_2]], align 4
>> >  ; CHECK-NEXT:    [[GEP_3:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 2
>> > -; CHECK-NEXT:    [[LOAD_4:%.*]] = load i32, i32* [[GEP_3]], align 4
>> > -; CHECK-NEXT:    [[INN_ADDR:%.*]] = getelementptr inbounds i32, i32*
>> %inn, i64 0
>> > -; CHECK-NEXT:    [[LOAD_5:%.*]] = load i32, i32* [[INN_ADDR]], 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:    [[TMP3:%.*]] = 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:    [[GEP_4:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 2
>> > -; CHECK-NEXT:    [[LOAD_6:%.*]] = load i32, i32* [[GEP_4]], align 4
>> >  ; CHECK-NEXT:    [[GEP_5:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 3
>> > -; CHECK-NEXT:    [[LOAD_7:%.*]] = load i32, i32* [[GEP_5]], align 4
>> >  ; CHECK-NEXT:    [[GEP_6:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 1
>> > -; 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:    [[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
>> > -; CHECK-NEXT:    store i32 [[MUL_2]], i32* [[GEP_8]], align 4
>> > -; CHECK-NEXT:    [[GEP_9:%.*]] = getelementptr inbounds i32, i32* %out,
>> i64 2
>> > -; CHECK-NEXT:    store i32 [[MUL_3]], i32* [[GEP_9]], align 4
>> > -; CHECK-NEXT:    [[GEP_10:%.*]] = getelementptr inbounds i32, i32* %out,
>> i64 3
>> > -; CHECK-NEXT:    store i32 [[MUL_4]], i32* [[GEP_10]], align 4
>> > +; CHECK-NEXT:    [[TMP4:%.*]] = bitcast i32* [[INN_ADDR]] to <4 x i32>*
>> > +; CHECK-NEXT:    [[TMP5:%.*]] = load <4 x i32>, <4 x i32>* [[TMP4]], align 4
>> > +; CHECK-NEXT:    [[TMP6:%.*]] = shufflevector <4 x i32> [[TMP5]], <4 x i32>
>> undef, <4 x i32> <i32 0, i32 1, i32 3, i32 2>
>> > +; CHECK-NEXT:    [[TMP7:%.*]] = mul <4 x i32> [[TMP3]], [[TMP6]]
>> > +; CHECK-NEXT:    [[GEP_7:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT:%.*]], i64 0
>> > +; CHECK-NEXT:    [[GEP_8:%.*]] = getelementptr inbounds i32, i32* [[OUT]],
>> i64 1
>> > +; CHECK-NEXT:    [[GEP_9:%.*]] = getelementptr inbounds i32, i32* [[OUT]],
>> i64 2
>> > +; CHECK-NEXT:    [[GEP_10:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 3
>> > +; CHECK-NEXT:    [[TMP8:%.*]] = bitcast i32* [[GEP_7]] to <4 x i32>*
>> > +; CHECK-NEXT:    store <4 x i32> [[TMP7]], <4 x i32>* [[TMP8]], align 4
>> >  ; CHECK-NEXT:    ret i32 undef
>> >  ;
>> >    %in.addr = getelementptr inbounds i32, i32* %in, i64 0
>> >
>> > 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=314806&r1=314805&r2=314806&view=diff
>> >
>> ================================================================
>> ==============
>> > --- llvm/trunk/test/Transforms/SLPVectorizer/X86/store-jumbled.ll
>> (original)
>> > +++ llvm/trunk/test/Transforms/SLPVectorizer/X86/store-jumbled.ll Tue
>> Oct  3 08:28:48 2017
>> > @@ -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
>> > -; CHECK-NEXT:    [[LOAD_2:%.*]] = load i32, i32* [[GEP_1]], align 4
>> >  ; CHECK-NEXT:    [[GEP_2:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 2
>> > -; CHECK-NEXT:    [[LOAD_3:%.*]] = load i32, i32* [[GEP_2]], align 4
>> >  ; CHECK-NEXT:    [[GEP_3:%.*]] = getelementptr inbounds i32, i32*
>> [[IN_ADDR]], i64 3
>> > -; 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:    [[TMP3:%.*]] = 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
>> > -; CHECK-NEXT:    [[LOAD_6:%.*]] = load i32, i32* [[GEP_4]], align 4
>> >  ; CHECK-NEXT:    [[GEP_5:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 2
>> > -; CHECK-NEXT:    [[LOAD_7:%.*]] = load i32, i32* [[GEP_5]], align 4
>> >  ; CHECK-NEXT:    [[GEP_6:%.*]] = getelementptr inbounds i32, i32*
>> [[INN_ADDR]], i64 3
>> > -; 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:    [[TMP4:%.*]] = bitcast i32* [[INN_ADDR]] to <4 x i32>*
>> > +; CHECK-NEXT:    [[TMP5:%.*]] = load <4 x i32>, <4 x i32>* [[TMP4]], align 4
>> > +; CHECK-NEXT:    [[TMP6:%.*]] = shufflevector <4 x i32> [[TMP5]], <4 x i32>
>> undef, <4 x i32> <i32 1, i32 3, i32 0, i32 2>
>> > +; CHECK-NEXT:    [[TMP7:%.*]] = mul <4 x i32> [[TMP3]], [[TMP6]]
>> >  ; CHECK-NEXT:    [[GEP_7:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT:%.*]], i64 0
>> >  ; CHECK-NEXT:    [[GEP_8:%.*]] = getelementptr inbounds i32, i32* [[OUT]],
>> i64 1
>> >  ; CHECK-NEXT:    [[GEP_9:%.*]] = getelementptr inbounds i32, i32* [[OUT]],
>> i64 2
>> >  ; CHECK-NEXT:    [[GEP_10:%.*]] = getelementptr inbounds i32, i32*
>> [[OUT]], i64 3
>> > -; 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:    [[TMP8:%.*]] = bitcast i32* [[GEP_7]] to <4 x i32>*
>> > +; CHECK-NEXT:    store <4 x i32> [[TMP7]], <4 x i32>* [[TMP8]], 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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