diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
index 86e742ca5fec1..132f348a35b0f 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
@@ -2095,24 +2095,6 @@ bool LoopVectorizationLegality::canFoldTailByMasking() const {
   for (const auto &Reduction : getReductionVars())
     ReductionLiveOuts.insert(Reduction.second.getLoopExitInstr());
 
-  // TODO: handle non-reduction outside users when tail is folded by masking.
-  for (auto *AE : AllowedExit) {
-    // Check that all users of allowed exit values are inside the loop or
-    // are the live-out of a reduction.
-    if (ReductionLiveOuts.count(AE))
-      continue;
-    for (User *U : AE->users()) {
-      Instruction *UI = cast<Instruction>(U);
-      if (TheLoop->contains(UI))
-        continue;
-      LLVM_DEBUG(
-          dbgs()
-          << "LV: Cannot fold tail by masking, loop has an outside user for "
-          << *UI << "\n");
-      return false;
-    }
-  }
-
   for (const auto &Entry : getInductionVars()) {
     PHINode *OrigPhi = Entry.first;
     for (User *U : OrigPhi->users()) {
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 267be2e243fc3..43f49b7ee71ae 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -8914,7 +8914,8 @@ void LoopVectorizationPlanner::adjustRecipesForReductions(
       if (FinalReductionResult == U || Parent->getParent())
         continue;
       U->replaceUsesOfWith(OrigExitingVPV, FinalReductionResult);
-      if (match(U, m_ExtractLastElement(m_VPValue())))
+      if (match(U, m_CombineOr(m_ExtractLastElement(m_VPValue()),
+                               m_ExtractLane(m_VPValue(), m_VPValue()))))
         cast<VPInstruction>(U)->replaceAllUsesWith(FinalReductionResult);
     }
 
diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 13582f8bd2d62..a5adaaf596e7d 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -1097,6 +1097,13 @@ class LLVM_ABI_FOR_TEST VPInstruction : public VPRecipeWithIRFlags,
     // It produces the lane index across all unrolled iterations. Unrolling will
     // add all copies of its original operand as additional operands.
     FirstActiveLane,
+    // Calculates the last active lane index of the vector predicate operands.
+    // The predicates must be prefix-masks (all 1s before all 0s). Used when
+    // tail-folding to extract the correct live-out value from the last active
+    // iteration. It produces the lane index across all unrolled iterations.
+    // Unrolling will add all copies of its original operand as additional
+    // operands.
+    LastActiveLane,
 
     // The opcodes below are used for VPInstructionWithType.
     //
diff --git a/llvm/lib/Transforms/Vectorize/VPlanAnalysis.cpp b/llvm/lib/Transforms/Vectorize/VPlanAnalysis.cpp
index 80a2e4bc3f754..fb0b029de3d41 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanAnalysis.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanAnalysis.cpp
@@ -115,6 +115,7 @@ Type *VPTypeAnalysis::inferScalarTypeForRecipe(const VPInstruction *R) {
   case VPInstruction::ExtractLane:
     return inferScalarType(R->getOperand(1));
   case VPInstruction::FirstActiveLane:
+  case VPInstruction::LastActiveLane:
     return Type::getIntNTy(Ctx, 64);
   case VPInstruction::ExtractLastElement:
   case VPInstruction::ExtractLastLanePerPart:
diff --git a/llvm/lib/Transforms/Vectorize/VPlanPatternMatch.h b/llvm/lib/Transforms/Vectorize/VPlanPatternMatch.h
index 447e2d70d941f..cd9abfa018c3f 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanPatternMatch.h
+++ b/llvm/lib/Transforms/Vectorize/VPlanPatternMatch.h
@@ -399,12 +399,24 @@ m_ExtractElement(const Op0_t &Op0, const Op1_t &Op1) {
   return m_VPInstruction<Instruction::ExtractElement>(Op0, Op1);
 }
 
+template <typename Op0_t, typename Op1_t>
+inline VPInstruction_match<VPInstruction::ExtractLane, Op0_t, Op1_t>
+m_ExtractLane(const Op0_t &Op0, const Op1_t &Op1) {
+  return m_VPInstruction<VPInstruction::ExtractLane>(Op0, Op1);
+}
+
 template <typename Op0_t>
 inline VPInstruction_match<VPInstruction::ExtractLastLanePerPart, Op0_t>
 m_ExtractLastLanePerPart(const Op0_t &Op0) {
   return m_VPInstruction<VPInstruction::ExtractLastLanePerPart>(Op0);
 }
 
+template <typename Op0_t>
+inline VPInstruction_match<VPInstruction::ExtractPenultimateElement, Op0_t>
+m_ExtractPenultimateElement(const Op0_t &Op0) {
+  return m_VPInstruction<VPInstruction::ExtractPenultimateElement>(Op0);
+}
+
 template <typename Op0_t, typename Op1_t, typename Op2_t>
 inline VPInstruction_match<VPInstruction::ActiveLaneMask, Op0_t, Op1_t, Op2_t>
 m_ActiveLaneMask(const Op0_t &Op0, const Op1_t &Op1, const Op2_t &Op2) {
@@ -433,6 +445,16 @@ m_FirstActiveLane(const Op0_t &Op0) {
   return m_VPInstruction<VPInstruction::FirstActiveLane>(Op0);
 }
 
+template <typename Op0_t>
+inline VPInstruction_match<VPInstruction::LastActiveLane, Op0_t>
+m_LastActiveLane(const Op0_t &Op0) {
+  return m_VPInstruction<VPInstruction::LastActiveLane>(Op0);
+}
+
+inline VPInstruction_match<VPInstruction::StepVector> m_StepVector() {
+  return m_VPInstruction<VPInstruction::StepVector>();
+}
+
 template <unsigned Opcode, typename Op0_t>
 inline AllRecipe_match<Opcode, Op0_t> m_Unary(const Op0_t &Op0) {
   return AllRecipe_match<Opcode, Op0_t>(Op0);
diff --git a/llvm/lib/Transforms/Vectorize/VPlanPredicator.cpp b/llvm/lib/Transforms/Vectorize/VPlanPredicator.cpp
index fb17d5dd62b9d..3579af21d8b07 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanPredicator.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanPredicator.cpp
@@ -44,11 +44,6 @@ class VPPredicator {
   /// possibly inserting new recipes at \p Dst (using Builder's insertion point)
   VPValue *createEdgeMask(VPBasicBlock *Src, VPBasicBlock *Dst);
 
-  /// Returns the *entry* mask for \p VPBB.
-  VPValue *getBlockInMask(VPBasicBlock *VPBB) const {
-    return BlockMaskCache.lookup(VPBB);
-  }
-
   /// Record \p Mask as the *entry* mask of \p VPBB, which is expected to not
   /// already have a mask.
   void setBlockInMask(VPBasicBlock *VPBB, VPValue *Mask) {
@@ -68,6 +63,11 @@ class VPPredicator {
   }
 
 public:
+  /// Returns the *entry* mask for \p VPBB.
+  VPValue *getBlockInMask(VPBasicBlock *VPBB) const {
+    return BlockMaskCache.lookup(VPBB);
+  }
+
   /// Returns the precomputed predicate of the edge from \p Src to \p Dst.
   VPValue *getEdgeMask(const VPBasicBlock *Src, const VPBasicBlock *Dst) const {
     return EdgeMaskCache.lookup({Src, Dst});
@@ -301,5 +301,34 @@ VPlanTransforms::introduceMasksAndLinearize(VPlan &Plan, bool FoldTail) {
 
     PrevVPBB = VPBB;
   }
+
+  // If we folded the tail and introduced a header mask, any extract of the
+  // last element must be updated to extract from the last active lane of the
+  // header mask instead (i.e., the lane corresponding to the last active
+  // iteration).
+  if (FoldTail) {
+    assert(Plan.getExitBlocks().size() == 1 &&
+           "only a single-exit block is supported currently");
+    VPBasicBlock *EB = Plan.getExitBlocks().front();
+    assert(EB->getSinglePredecessor() == Plan.getMiddleBlock() &&
+           "the exit block must have middle block as single predecessor");
+
+    VPBuilder B(Plan.getMiddleBlock()->getTerminator());
+    for (auto &P : EB->phis()) {
+      auto *ExitIRI = cast<VPIRPhi>(&P);
+      VPValue *Inc = ExitIRI->getIncomingValue(0);
+      VPValue *Op;
+      if (!match(Inc, m_ExtractLastElement(m_VPValue(Op))))
+        continue;
+
+      // Compute the index of the last active lane.
+      VPValue *HeaderMask = Predicator.getBlockInMask(Header);
+      VPValue *LastActiveLane =
+          B.createNaryOp(VPInstruction::LastActiveLane, HeaderMask);
+      auto *Ext =
+          B.createNaryOp(VPInstruction::ExtractLane, {LastActiveLane, Op});
+      Inc->replaceAllUsesWith(Ext);
+    }
+  }
   return Predicator.getBlockMaskCache();
 }
diff --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
index 7c9302860a3b5..a14b732cd06fa 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -560,7 +560,6 @@ unsigned VPInstruction::getNumOperandsForOpcode(unsigned Opcode) {
   case VPInstruction::ExtractLastElement:
   case VPInstruction::ExtractLastLanePerPart:
   case VPInstruction::ExtractPenultimateElement:
-  case VPInstruction::FirstActiveLane:
   case VPInstruction::Not:
   case VPInstruction::ResumeForEpilogue:
   case VPInstruction::Unpack:
@@ -591,6 +590,8 @@ unsigned VPInstruction::getNumOperandsForOpcode(unsigned Opcode) {
   case Instruction::Switch:
   case VPInstruction::SLPLoad:
   case VPInstruction::SLPStore:
+  case VPInstruction::FirstActiveLane:
+  case VPInstruction::LastActiveLane:
     // Cannot determine the number of operands from the opcode.
     return -1u;
   }
@@ -1004,8 +1005,10 @@ Value *VPInstruction::generate(VPTransformState &State) {
   case VPInstruction::FirstActiveLane: {
     if (getNumOperands() == 1) {
       Value *Mask = State.get(getOperand(0));
+      // LastActiveLane might get expanded to a FirstActiveLane with an all-ones
+      // mask, so make sure zero returns VF and not poison.
       return Builder.CreateCountTrailingZeroElems(Builder.getInt64Ty(), Mask,
-                                                  true, Name);
+                                                  /*ZeroIsPoison=*/false, Name);
     }
     // If there are multiple operands, create a chain of selects to pick the
     // first operand with an active lane and add the number of lanes of the
@@ -1021,9 +1024,9 @@ Value *VPInstruction::generate(VPTransformState &State) {
                     Builder.CreateICmpEQ(State.get(getOperand(Idx)),
                                          Builder.getFalse()),
                     Builder.getInt64Ty())
-              : Builder.CreateCountTrailingZeroElems(Builder.getInt64Ty(),
-                                                     State.get(getOperand(Idx)),
-                                                     true, Name);
+              : Builder.CreateCountTrailingZeroElems(
+                    Builder.getInt64Ty(), State.get(getOperand(Idx)),
+                    /*ZeroIsPoison=*/false, Name);
       Value *Current = Builder.CreateAdd(
           Builder.CreateMul(RuntimeVF, Builder.getInt64(Idx)), TrailingZeros);
       if (Res) {
@@ -1174,6 +1177,29 @@ InstructionCost VPInstruction::computeCost(ElementCount VF,
                                   {PredTy, Type::getInt1Ty(Ctx.LLVMCtx)});
     return Ctx.TTI.getIntrinsicInstrCost(Attrs, Ctx.CostKind);
   }
+  case VPInstruction::LastActiveLane: {
+    Type *ScalarTy = Ctx.Types.inferScalarType(getOperand(0));
+    if (VF.isScalar())
+      return Ctx.TTI.getCmpSelInstrCost(Instruction::ICmp, ScalarTy,
+                                        CmpInst::makeCmpResultType(ScalarTy),
+                                        CmpInst::ICMP_EQ, Ctx.CostKind);
+    // Calculate the cost of determining the lane index: NOT + cttz_elts + SUB.
+    auto *PredTy = toVectorTy(ScalarTy, VF);
+    IntrinsicCostAttributes Attrs(Intrinsic::experimental_cttz_elts,
+                                  Type::getInt64Ty(Ctx.LLVMCtx),
+                                  {PredTy, Type::getInt1Ty(Ctx.LLVMCtx)});
+    InstructionCost Cost = Ctx.TTI.getIntrinsicInstrCost(Attrs, Ctx.CostKind);
+    // Add cost of NOT operation on the predicate.
+    Cost += Ctx.TTI.getArithmeticInstrCost(
+        Instruction::Xor, PredTy, Ctx.CostKind,
+        {TargetTransformInfo::OK_AnyValue, TargetTransformInfo::OP_None},
+        {TargetTransformInfo::OK_UniformConstantValue,
+         TargetTransformInfo::OP_None});
+    // Add cost of SUB operation on the index.
+    Cost += Ctx.TTI.getArithmeticInstrCost(
+        Instruction::Sub, Type::getInt64Ty(Ctx.LLVMCtx), Ctx.CostKind);
+    return Cost;
+  }
   case VPInstruction::FirstOrderRecurrenceSplice: {
     assert(VF.isVector() && "Scalar FirstOrderRecurrenceSplice?");
     SmallVector<int> Mask(VF.getKnownMinValue());
@@ -1228,6 +1254,7 @@ bool VPInstruction::isVectorToScalar() const {
          getOpcode() == Instruction::ExtractElement ||
          getOpcode() == VPInstruction::ExtractLane ||
          getOpcode() == VPInstruction::FirstActiveLane ||
+         getOpcode() == VPInstruction::LastActiveLane ||
          getOpcode() == VPInstruction::ComputeAnyOfResult ||
          getOpcode() == VPInstruction::ComputeFindIVResult ||
          getOpcode() == VPInstruction::ComputeReductionResult ||
@@ -1294,6 +1321,7 @@ bool VPInstruction::opcodeMayReadOrWriteFromMemory() const {
   case VPInstruction::ActiveLaneMask:
   case VPInstruction::ExplicitVectorLength:
   case VPInstruction::FirstActiveLane:
+  case VPInstruction::LastActiveLane:
   case VPInstruction::FirstOrderRecurrenceSplice:
   case VPInstruction::LogicalAnd:
   case VPInstruction::Not:
@@ -1470,6 +1498,9 @@ void VPInstruction::printRecipe(raw_ostream &O, const Twine &Indent,
   case VPInstruction::FirstActiveLane:
     O << "first-active-lane";
     break;
+  case VPInstruction::LastActiveLane:
+    O << "last-active-lane";
+    break;
   case VPInstruction::ReductionStartVector:
     O << "reduction-start-vector";
     break;
diff --git a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
index 25557f1d5d651..9cf8a12d5d8d4 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
@@ -826,8 +826,8 @@ static VPValue *optimizeEarlyExitInductionUser(VPlan &Plan,
                                                VPValue *Op,
                                                ScalarEvolution &SE) {
   VPValue *Incoming, *Mask;
-  if (!match(Op, m_VPInstruction<VPInstruction::ExtractLane>(
-                     m_FirstActiveLane(m_VPValue(Mask)), m_VPValue(Incoming))))
+  if (!match(Op, m_ExtractLane(m_FirstActiveLane(m_VPValue(Mask)),
+                               m_VPValue(Incoming))))
     return nullptr;
 
   auto *WideIV = getOptimizableIVOf(Incoming, SE);
@@ -1295,8 +1295,7 @@ static void simplifyRecipe(VPSingleDefRecipe *Def, VPTypeAnalysis &TypeInfo) {
   }
 
   // Look through ExtractPenultimateElement (BuildVector ....).
-  if (match(Def, m_VPInstruction<VPInstruction::ExtractPenultimateElement>(
-                     m_BuildVector()))) {
+  if (match(Def, m_ExtractPenultimateElement(m_BuildVector()))) {
     auto *BuildVector = cast<VPInstruction>(Def->getOperand(0));
     Def->replaceAllUsesWith(
         BuildVector->getOperand(BuildVector->getNumOperands() - 2));
@@ -2106,6 +2105,32 @@ bool VPlanTransforms::adjustFixedOrderRecurrences(VPlan &Plan,
     // Set the first operand of RecurSplice to FOR again, after replacing
     // all users.
     RecurSplice->setOperand(0, FOR);
+
+    // Check for users extracting at the penultimate active lane of the FOR.
+    // If only a single lane is active in the current iteration, we need to
+    // select the last element from the previous iteration (from the FOR phi
+    // directly).
+    for (VPUser *U : RecurSplice->users()) {
+      if (!match(U, m_ExtractLane(m_LastActiveLane(m_VPValue()),
+                                  m_Specific(RecurSplice))))
+        continue;
+
+      VPBuilder B(cast<VPInstruction>(U));
+      VPValue *LastActiveLane = cast<VPInstruction>(U)->getOperand(0);
+      Type *I64Ty = Type::getInt64Ty(Plan.getContext());
+      VPValue *Zero = Plan.getOrAddLiveIn(ConstantInt::get(I64Ty, 0));
+      VPValue *One = Plan.getOrAddLiveIn(ConstantInt::get(I64Ty, 1));
+      VPValue *PenultimateIndex =
+          B.createNaryOp(Instruction::Sub, {LastActiveLane, One});
+      VPValue *PenultimateLastIter =
+          B.createNaryOp(VPInstruction::ExtractLane,
+                         {PenultimateIndex, FOR->getBackedgeValue()});
+      VPValue *LastPrevIter =
+          B.createNaryOp(VPInstruction::ExtractLastElement, FOR);
+      VPValue *Cmp = B.createICmp(CmpInst::ICMP_EQ, LastActiveLane, Zero);
+      VPValue *Sel = B.createSelect(Cmp, LastPrevIter, PenultimateLastIter);
+      cast<VPInstruction>(U)->replaceAllUsesWith(Sel);
+    }
   }
   return true;
 }
@@ -3492,6 +3517,34 @@ void VPlanTransforms::convertToConcreteRecipes(VPlan &Plan) {
         ToRemove.push_back(Expr);
       }
 
+      // Expand LastActiveLane into Not + FirstActiveLane + Sub.
+      auto *LastActiveL = dyn_cast<VPInstruction>(&R);
+      if (LastActiveL &&
+          LastActiveL->getOpcode() == VPInstruction::LastActiveLane) {
+        // Create Not(Mask) for all operands.
+        SmallVector<VPValue *, 2> NotMasks;
+        for (VPValue *Op : LastActiveL->operands()) {
+          VPValue *NotMask = Builder.createNot(Op, LastActiveL->getDebugLoc());
+          NotMasks.push_back(NotMask);
+        }
+
+        // Create FirstActiveLane on the inverted masks.
+        VPValue *FirstInactiveLane = Builder.createNaryOp(
+            VPInstruction::FirstActiveLane, NotMasks,
+            LastActiveL->getDebugLoc(), "first.inactive.lane");
+
+        // Subtract 1 to get the last active lane.
+        VPValue *One = Plan.getOrAddLiveIn(
+            ConstantInt::get(Type::getInt64Ty(Plan.getContext()), 1));
+        VPValue *LastLane = Builder.createNaryOp(
+            Instruction::Sub, {FirstInactiveLane, One},
+            LastActiveL->getDebugLoc(), "last.active.lane");
+
+        LastActiveL->replaceAllUsesWith(LastLane);
+        ToRemove.push_back(LastActiveL);
+        continue;
+      }
+
       VPValue *VectorStep;
       VPValue *ScalarStep;
       if (!match(&R, m_VPInstruction<VPInstruction::WideIVStep>(
diff --git a/llvm/lib/Transforms/Vectorize/VPlanUnroll.cpp b/llvm/lib/Transforms/Vectorize/VPlanUnroll.cpp
index d76d2ed5f1c76..a1d5e47172516 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanUnroll.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanUnroll.cpp
@@ -352,6 +352,7 @@ void UnrollState::unrollBlock(VPBlockBase *VPB) {
     VPValue *Op1;
     if (match(&R, m_VPInstruction<VPInstruction::AnyOf>(m_VPValue(Op1))) ||
         match(&R, m_FirstActiveLane(m_VPValue(Op1))) ||
+        match(&R, m_LastActiveLane(m_VPValue(Op1))) ||
         match(&R, m_VPInstruction<VPInstruction::ComputeAnyOfResult>(
                       m_VPValue(), m_VPValue(), m_VPValue(Op1))) ||
         match(&R, m_VPInstruction<VPInstruction::ComputeReductionResult>(
@@ -364,17 +365,21 @@ void UnrollState::unrollBlock(VPBlockBase *VPB) {
       continue;
     }
     VPValue *Op0;
-    if (match(&R, m_VPInstruction<VPInstruction::ExtractLane>(
-                      m_VPValue(Op0), m_VPValue(Op1)))) {
+    if (match(&R, m_ExtractLane(m_VPValue(Op0), m_VPValue(Op1)))) {
       addUniformForAllParts(cast<VPInstruction>(&R));
       for (unsigned Part = 1; Part != UF; ++Part)
         R.addOperand(getValueForPart(Op1, Part));
       continue;
     }
     if (match(&R, m_ExtractLastElement(m_VPValue(Op0))) ||
-        match(&R, m_VPInstruction<VPInstruction::ExtractPenultimateElement>(
-                      m_VPValue(Op0)))) {
+        match(&R, m_ExtractPenultimateElement(m_VPValue(Op0)))) {
       addUniformForAllParts(cast<VPSingleDefRecipe>(&R));
+      if (isa<VPFirstOrderRecurrencePHIRecipe>(Op0)) {
+        assert(match(&R, m_ExtractLastElement(m_VPValue())) &&
+               "can only extract last element of FOR");
+        continue;
+      }
+
       if (Plan.hasScalarVFOnly()) {
         auto *I = cast<VPInstruction>(&R);
         // Extracting from end with VF = 1 implies retrieving the last or
diff --git a/llvm/lib/Transforms/Vectorize/VPlanVerifier.cpp b/llvm/lib/Transforms/Vectorize/VPlanVerifier.cpp
index 34754a1ea3992..2d63d2a787f88 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanVerifier.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanVerifier.cpp
@@ -18,6 +18,7 @@
 #include "VPlanDominatorTree.h"
 #include "VPlanHelpers.h"
 #include "VPlanPatternMatch.h"
+#include "VPlanUtils.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/TypeSwitch.h"
 
@@ -44,6 +45,9 @@ class VPlanVerifier {
   /// incoming value into EVL's recipe.
   bool verifyEVLRecipe(const VPInstruction &EVL) const;
 
+  /// Verify that \p LastActiveLane's operand is guaranteed to be a prefix-mask.
+  bool verifyLastActiveLaneRecipe(const VPInstruction &LastActiveLane) const;
+
   bool verifyVPBasicBlock(const VPBasicBlock *VPBB);
 
   bool verifyBlock(const VPBlockBase *VPB);
@@ -221,6 +225,44 @@ bool VPlanVerifier::verifyEVLRecipe(const VPInstruction &EVL) const {
   });
 }
 
+bool VPlanVerifier::verifyLastActiveLaneRecipe(
+    const VPInstruction &LastActiveLane) const {
+  assert(LastActiveLane.getOpcode() == VPInstruction::LastActiveLane &&
+         "must be called with VPInstruction::LastActiveLane");
+
+  if (LastActiveLane.getNumOperands() < 1) {
+    errs() << "LastActiveLane must have at least one operand\n";
+    return false;
+  }
+
+  const VPlan &Plan = *LastActiveLane.getParent()->getPlan();
+  // All operands must be prefix-mask. Currently we check for header masks or
+  // EVL-derived masks, as those are currently the only operands in practice,
+  // but this may need updating in the future.
+  for (VPValue *Op : LastActiveLane.operands()) {
+    if (vputils::isHeaderMask(Op, Plan))
+      continue;
+
+    // Masks derived from EVL are also fine.
+    auto BroadcastOrEVL =
+        m_CombineOr(m_Broadcast(m_EVL(m_VPValue())), m_EVL(m_VPValue()));
+    if (match(Op, m_CombineOr(m_ICmp(m_StepVector(), BroadcastOrEVL),
+                              m_ICmp(BroadcastOrEVL, m_StepVector()))))
+      continue;
+
+    errs() << "LastActiveLane operand ";
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+    VPSlotTracker Tracker(&Plan);
+    Op->printAsOperand(errs(), Tracker);
+#endif
+    errs() << " must be prefix mask (a header mask or an "
+              "EVL-derived mask currently)\n";
+    return false;
+  }
+
+  return true;
+}
+
 bool VPlanVerifier::verifyVPBasicBlock(const VPBasicBlock *VPBB) {
   if (!verifyPhiRecipes(VPBB))
     return false;
@@ -313,6 +355,10 @@ bool VPlanVerifier::verifyVPBasicBlock(const VPBasicBlock *VPBB) {
           return false;
         }
         break;
+      case VPInstruction::LastActiveLane:
+        if (!verifyLastActiveLaneRecipe(*VPI))
+          return false;
+        break;
       default:
         break;
       }
diff --git a/llvm/test/Transforms/LoopVectorize/AArch64/simple_early_exit.ll b/llvm/test/Transforms/LoopVectorize/AArch64/simple_early_exit.ll
index 3b016f8d0a9ff..63348ccf94f78 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/simple_early_exit.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/simple_early_exit.ll
@@ -44,7 +44,7 @@ define i64 @same_exit_block_pre_inc_use1() #1 {
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 64, [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label [[LOOP_END:%.*]], label [[SCALAR_PH]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP16]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP16]], i1 false)
 ; CHECK-NEXT:    [[TMP20:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP20]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -125,7 +125,7 @@ define i64 @same_exit_block_pre_inc_use4() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP4]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP4]], i1 false)
 ; CHECK-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP8]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -187,7 +187,7 @@ define i64 @loop_contains_safe_call() #1 {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 false)
 ; CHECK-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP9]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -256,7 +256,7 @@ define i64 @loop_contains_safe_div() #1 {
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 64, [[INDEX1]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label [[LOOP_END:%.*]], label [[SCALAR_PH:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv4i1(<vscale x 4 x i1> [[TMP15]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv4i1(<vscale x 4 x i1> [[TMP15]], i1 false)
 ; CHECK-NEXT:    [[TMP16:%.*]] = add i64 [[INDEX2]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP16]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -336,7 +336,7 @@ define i64 @loop_contains_load_after_early_exit(ptr dereferenceable(1024) align(
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP11:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP11]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -483,12 +483,12 @@ exit:
 define i64 @same_exit_block_requires_interleaving() {
 ; CHECK-LABEL: define i64 @same_exit_block_requires_interleaving() {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[P1:%.*]] = alloca [128 x %my.struct], align 8
+; CHECK-NEXT:    [[P1:%.*]] = alloca [128 x [[MY_STRUCT:%.*]]], align 8
 ; CHECK-NEXT:    call void @init_mem(ptr [[P1]], i64 256)
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
 ; CHECK:       loop:
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[LOOP_LATCH:%.*]] ], [ 3, [[ENTRY:%.*]] ]
-; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds [128 x %my.struct], ptr [[P1]], i64 0, i64 [[INDEX]]
+; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds [128 x [[MY_STRUCT]]], ptr [[P1]], i64 0, i64 [[INDEX]]
 ; CHECK-NEXT:    [[LD1:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
 ; CHECK-NEXT:    [[CMP3:%.*]] = icmp eq i8 [[LD1]], 3
 ; CHECK-NEXT:    br i1 [[CMP3]], label [[LOOP_LATCH]], label [[LOOP_END:%.*]]
diff --git a/llvm/test/Transforms/LoopVectorize/AArch64/single-early-exit-interleave.ll b/llvm/test/Transforms/LoopVectorize/AArch64/single-early-exit-interleave.ll
index b40a184a3e425..c56f8327a48b3 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/single-early-exit-interleave.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/single-early-exit-interleave.ll
@@ -79,20 +79,20 @@ define i64 @same_exit_block_pre_inc_use1() #0 {
 ; CHECK:       vector.early.exit:
 ; CHECK-NEXT:    [[TMP39:%.*]] = call i64 @llvm.vscale.i64()
 ; CHECK-NEXT:    [[TMP40:%.*]] = mul nuw i64 [[TMP39]], 16
-; CHECK-NEXT:    [[TMP41:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP59]], i1 true)
+; CHECK-NEXT:    [[TMP41:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP59]], i1 false)
 ; CHECK-NEXT:    [[TMP42:%.*]] = mul i64 [[TMP40]], 3
 ; CHECK-NEXT:    [[TMP43:%.*]] = add i64 [[TMP42]], [[TMP41]]
-; CHECK-NEXT:    [[TMP44:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP31]], i1 true)
+; CHECK-NEXT:    [[TMP44:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP31]], i1 false)
 ; CHECK-NEXT:    [[TMP45:%.*]] = mul i64 [[TMP40]], 2
 ; CHECK-NEXT:    [[TMP46:%.*]] = add i64 [[TMP45]], [[TMP44]]
 ; CHECK-NEXT:    [[TMP47:%.*]] = icmp ne i64 [[TMP44]], [[TMP40]]
 ; CHECK-NEXT:    [[TMP48:%.*]] = select i1 [[TMP47]], i64 [[TMP46]], i64 [[TMP43]]
-; CHECK-NEXT:    [[TMP49:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP30]], i1 true)
+; CHECK-NEXT:    [[TMP49:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP30]], i1 false)
 ; CHECK-NEXT:    [[TMP50:%.*]] = mul i64 [[TMP40]], 1
 ; CHECK-NEXT:    [[TMP51:%.*]] = add i64 [[TMP50]], [[TMP49]]
 ; CHECK-NEXT:    [[TMP52:%.*]] = icmp ne i64 [[TMP49]], [[TMP40]]
 ; CHECK-NEXT:    [[TMP53:%.*]] = select i1 [[TMP52]], i64 [[TMP51]], i64 [[TMP48]]
-; CHECK-NEXT:    [[TMP61:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
+; CHECK-NEXT:    [[TMP61:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 false)
 ; CHECK-NEXT:    [[TMP55:%.*]] = mul i64 [[TMP40]], 0
 ; CHECK-NEXT:    [[TMP56:%.*]] = add i64 [[TMP55]], [[TMP61]]
 ; CHECK-NEXT:    [[TMP57:%.*]] = icmp ne i64 [[TMP61]], [[TMP40]]
diff --git a/llvm/test/Transforms/LoopVectorize/RISCV/dead-ops-cost.ll b/llvm/test/Transforms/LoopVectorize/RISCV/dead-ops-cost.ll
index 9f6f79d9030ed..41d3af2d5e763 100644
--- a/llvm/test/Transforms/LoopVectorize/RISCV/dead-ops-cost.ll
+++ b/llvm/test/Transforms/LoopVectorize/RISCV/dead-ops-cost.ll
@@ -69,51 +69,51 @@ exit:
 define i8 @dead_live_out_due_to_scalar_epilogue_required(ptr %src, ptr %dst) {
 ; CHECK-LABEL: define i8 @dead_live_out_due_to_scalar_epilogue_required(
 ; CHECK-SAME: ptr [[SRC:%.*]], ptr [[DST:%.*]]) #[[ATTR0]] {
-; CHECK-NEXT:  [[ENTRY:.*]]:
-; CHECK-NEXT:    [[TMP0:%.*]] = call i32 @llvm.vscale.i32()
-; CHECK-NEXT:    [[TMP1:%.*]] = shl nuw i32 [[TMP0]], 2
-; CHECK-NEXT:    [[TMP2:%.*]] = call i32 @llvm.umax.i32(i32 [[TMP1]], i32 6)
-; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ule i32 252, [[TMP2]]
-; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_MEMCHECK:.*]]
+; CHECK-NEXT:  [[ENTRY:.*:]]
+; CHECK-NEXT:    br label %[[VECTOR_MEMCHECK:.*]]
 ; CHECK:       [[VECTOR_MEMCHECK]]:
 ; CHECK-NEXT:    [[SCEVGEP:%.*]] = getelementptr i8, ptr [[DST]], i64 1005
 ; CHECK-NEXT:    [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[SRC]], i64 1005
 ; CHECK-NEXT:    [[BOUND0:%.*]] = icmp ult ptr [[DST]], [[SCEVGEP1]]
 ; CHECK-NEXT:    [[BOUND1:%.*]] = icmp ult ptr [[SRC]], [[SCEVGEP]]
 ; CHECK-NEXT:    [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
-; CHECK-NEXT:    br i1 [[FOUND_CONFLICT]], label %[[SCALAR_PH]], label %[[VECTOR_PH:.*]]
+; CHECK-NEXT:    br i1 [[FOUND_CONFLICT]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
 ; CHECK:       [[VECTOR_PH]]:
-; CHECK-NEXT:    [[TMP3:%.*]] = call i32 @llvm.vscale.i32()
-; CHECK-NEXT:    [[TMP4:%.*]] = mul nuw i32 [[TMP3]], 4
-; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i32 252, [[TMP4]]
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N_MOD_VF]], 0
-; CHECK-NEXT:    [[TMP6:%.*]] = select i1 [[TMP5]], i32 [[TMP4]], i32 [[N_MOD_VF]]
-; CHECK-NEXT:    [[N_VEC:%.*]] = sub i32 252, [[TMP6]]
-; CHECK-NEXT:    [[IND_END:%.*]] = mul i32 [[N_VEC]], 4
-; CHECK-NEXT:    [[TMP9:%.*]] = call <vscale x 4 x i32> @llvm.stepvector.nxv4i32()
-; CHECK-NEXT:    [[TMP11:%.*]] = mul <vscale x 4 x i32> [[TMP9]], splat (i32 4)
-; CHECK-NEXT:    [[INDUCTION:%.*]] = add <vscale x 4 x i32> zeroinitializer, [[TMP11]]
-; CHECK-NEXT:    [[TMP14:%.*]] = mul i32 4, [[TMP4]]
-; CHECK-NEXT:    [[DOTSPLATINSERT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 [[TMP14]], i64 0
-; CHECK-NEXT:    [[DOTSPLAT:%.*]] = shufflevector <vscale x 4 x i32> [[DOTSPLATINSERT]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP0:%.*]] = call <vscale x 16 x i32> @llvm.stepvector.nxv16i32()
+; CHECK-NEXT:    [[TMP1:%.*]] = mul <vscale x 16 x i32> [[TMP0]], splat (i32 4)
+; CHECK-NEXT:    [[INDUCTION:%.*]] = add <vscale x 16 x i32> zeroinitializer, [[TMP1]]
 ; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
 ; CHECK:       [[VECTOR_BODY]]:
-; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <vscale x 4 x i32> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[TMP15:%.*]] = sext <vscale x 4 x i32> [[VEC_IND]] to <vscale x 4 x i64>
-; CHECK-NEXT:    [[TMP16:%.*]] = getelementptr i8, ptr [[DST]], <vscale x 4 x i64> [[TMP15]]
-; CHECK-NEXT:    call void @llvm.masked.scatter.nxv4i8.nxv4p0(<vscale x 4 x i8> zeroinitializer, <vscale x 4 x ptr> align 1 [[TMP16]], <vscale x 4 x i1> splat (i1 true)), !alias.scope [[META3:![0-9]+]], !noalias [[META6:![0-9]+]]
-; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], [[TMP4]]
-; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 4 x i32> [[VEC_IND]], [[DOTSPLAT]]
-; CHECK-NEXT:    [[TMP17:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-NEXT:    br i1 [[TMP17]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <vscale x 16 x i32> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[AVL:%.*]] = phi i32 [ 252, %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP2:%.*]] = call i32 @llvm.experimental.get.vector.length.i32(i32 [[AVL]], i32 16, i1 true)
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <vscale x 16 x i32> poison, i32 [[TMP2]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT3:%.*]] = shufflevector <vscale x 16 x i32> [[BROADCAST_SPLATINSERT2]], <vscale x 16 x i32> poison, <vscale x 16 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP3:%.*]] = mul i32 4, [[TMP2]]
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 16 x i32> poison, i32 [[TMP3]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 16 x i32> [[BROADCAST_SPLATINSERT]], <vscale x 16 x i32> poison, <vscale x 16 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP5:%.*]] = icmp uge <vscale x 16 x i32> [[TMP0]], [[BROADCAST_SPLAT3]]
+; CHECK-NEXT:    [[TMP9:%.*]] = sext <vscale x 16 x i32> [[VEC_IND]] to <vscale x 16 x i64>
+; CHECK-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[SRC]], <vscale x 16 x i64> [[TMP9]]
+; CHECK-NEXT:    [[WIDE_MASKED_GATHER:%.*]] = call <vscale x 16 x i8> @llvm.vp.gather.nxv16i8.nxv16p0(<vscale x 16 x ptr> align 1 [[TMP6]], <vscale x 16 x i1> splat (i1 true), i32 [[TMP2]]), !alias.scope [[META3:![0-9]+]]
+; CHECK-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[DST]], <vscale x 16 x i64> [[TMP9]]
+; CHECK-NEXT:    call void @llvm.vp.scatter.nxv16i8.nxv16p0(<vscale x 16 x i8> zeroinitializer, <vscale x 16 x ptr> align 1 [[TMP7]], <vscale x 16 x i1> splat (i1 true), i32 [[TMP2]]), !alias.scope [[META6:![0-9]+]], !noalias [[META3]]
+; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i32 [[AVL]], [[TMP2]]
+; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 16 x i32> [[VEC_IND]], [[BROADCAST_SPLAT]]
+; CHECK-NEXT:    [[TMP8:%.*]] = icmp eq i32 [[AVL_NEXT]], 0
+; CHECK-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
 ; CHECK:       [[MIDDLE_BLOCK]]:
-; CHECK-NEXT:    br label %[[SCALAR_PH]]
+; CHECK-NEXT:    [[TMP10:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv16i1(<vscale x 16 x i1> [[TMP5]], i1 false)
+; CHECK-NEXT:    [[TMP11:%.*]] = sub i64 [[TMP10]], 1
+; CHECK-NEXT:    [[TMP12:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT:    [[TMP13:%.*]] = mul nuw i64 [[TMP12]], 16
+; CHECK-NEXT:    [[TMP17:%.*]] = mul i64 [[TMP13]], 0
+; CHECK-NEXT:    [[TMP15:%.*]] = extractelement <vscale x 16 x i8> [[WIDE_MASKED_GATHER]], i64 [[TMP11]]
+; CHECK-NEXT:    br label %[[EXIT:.*]]
 ; CHECK:       [[SCALAR_PH]]:
-; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i32 [ [[IND_END]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ], [ 0, %[[VECTOR_MEMCHECK]] ]
 ; CHECK-NEXT:    br label %[[LOOP:.*]]
 ; CHECK:       [[LOOP]]:
-; CHECK-NEXT:    [[IV:%.*]] = phi i32 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
+; CHECK-NEXT:    [[IV:%.*]] = phi i32 [ 0, %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
 ; CHECK-NEXT:    [[IDXPROM:%.*]] = sext i32 [[IV]] to i64
 ; CHECK-NEXT:    [[GEP_SRC:%.*]] = getelementptr i8, ptr [[SRC]], i64 [[IDXPROM]]
 ; CHECK-NEXT:    [[L:%.*]] = load i8, ptr [[GEP_SRC]], align 1
@@ -121,9 +121,9 @@ define i8 @dead_live_out_due_to_scalar_epilogue_required(ptr %src, ptr %dst) {
 ; CHECK-NEXT:    store i8 0, ptr [[GEP_DST]], align 1
 ; CHECK-NEXT:    [[IV_NEXT]] = add i32 [[IV]], 4
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i32 [[IV]], 1001
-; CHECK-NEXT:    br i1 [[CMP]], label %[[LOOP]], label %[[EXIT:.*]], !llvm.loop [[LOOP9:![0-9]+]]
+; CHECK-NEXT:    br i1 [[CMP]], label %[[LOOP]], label %[[EXIT]], !llvm.loop [[LOOP9:![0-9]+]]
 ; CHECK:       [[EXIT]]:
-; CHECK-NEXT:    [[R:%.*]] = phi i8 [ [[L]], %[[LOOP]] ]
+; CHECK-NEXT:    [[R:%.*]] = phi i8 [ [[L]], %[[LOOP]] ], [ [[TMP15]], %[[MIDDLE_BLOCK]] ]
 ; CHECK-NEXT:    ret i8 [[R]]
 ;
 entry:
diff --git a/llvm/test/Transforms/LoopVectorize/RISCV/divrem.ll b/llvm/test/Transforms/LoopVectorize/RISCV/divrem.ll
index 8e71718061c9b..feaf26e366962 100644
--- a/llvm/test/Transforms/LoopVectorize/RISCV/divrem.ll
+++ b/llvm/test/Transforms/LoopVectorize/RISCV/divrem.ll
@@ -639,73 +639,50 @@ for.end:
 define i32 @udiv_sdiv_with_invariant_divisors(i8 %x, i16 %y, i1 %c) {
 ; CHECK-LABEL: @udiv_sdiv_with_invariant_divisors(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = call i32 @llvm.vscale.i32()
-; CHECK-NEXT:    [[TMP1:%.*]] = shl nuw i32 [[TMP0]], 1
-; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 12, [[TMP1]]
-; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-NEXT:    br label [[VECTOR_PH:%.*]]
 ; CHECK:       vector.ph:
-; CHECK-NEXT:    [[TMP2:%.*]] = call i32 @llvm.vscale.i32()
-; CHECK-NEXT:    [[TMP3:%.*]] = mul nuw i32 [[TMP2]], 2
-; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i32 12, [[TMP3]]
-; CHECK-NEXT:    [[N_VEC:%.*]] = sub i32 12, [[N_MOD_VF]]
-; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i16> poison, i16 [[Y:%.*]], i64 0
-; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i16> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i16> poison, <vscale x 2 x i32> zeroinitializer
-; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <vscale x 2 x i8> poison, i8 [[X:%.*]], i64 0
-; CHECK-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <vscale x 2 x i8> [[BROADCAST_SPLATINSERT1]], <vscale x 2 x i8> poison, <vscale x 2 x i32> zeroinitializer
-; CHECK-NEXT:    [[DOTCAST:%.*]] = trunc i32 [[N_VEC]] to i16
-; CHECK-NEXT:    [[TMP4:%.*]] = add i16 -12, [[DOTCAST]]
-; CHECK-NEXT:    [[DOTCAST5:%.*]] = trunc i32 [[N_VEC]] to i8
-; CHECK-NEXT:    [[TMP5:%.*]] = add i8 -12, [[DOTCAST5]]
-; CHECK-NEXT:    [[TMP6:%.*]] = select i1 [[C:%.*]], <vscale x 2 x i8> splat (i8 1), <vscale x 2 x i8> [[BROADCAST_SPLAT2]]
-; CHECK-NEXT:    [[TMP7:%.*]] = select i1 [[C]], <vscale x 2 x i16> splat (i16 1), <vscale x 2 x i16> [[BROADCAST_SPLAT]]
-; CHECK-NEXT:    [[TMP8:%.*]] = call <vscale x 2 x i8> @llvm.stepvector.nxv2i8()
-; CHECK-NEXT:    [[TMP9:%.*]] = mul <vscale x 2 x i8> [[TMP8]], splat (i8 1)
-; CHECK-NEXT:    [[INDUCTION:%.*]] = add <vscale x 2 x i8> splat (i8 -12), [[TMP9]]
-; CHECK-NEXT:    [[TMP10:%.*]] = trunc i32 [[TMP3]] to i8
-; CHECK-NEXT:    [[BROADCAST_SPLATINSERT6:%.*]] = insertelement <vscale x 2 x i8> poison, i8 [[TMP10]], i64 0
-; CHECK-NEXT:    [[BROADCAST_SPLAT7:%.*]] = shufflevector <vscale x 2 x i8> [[BROADCAST_SPLATINSERT6]], <vscale x 2 x i8> poison, <vscale x 2 x i32> zeroinitializer
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 8 x i1> poison, i1 [[C:%.*]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 8 x i1> [[BROADCAST_SPLATINSERT]], <vscale x 8 x i1> poison, <vscale x 8 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP0:%.*]] = xor <vscale x 8 x i1> [[BROADCAST_SPLAT]], splat (i1 true)
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <vscale x 8 x i8> poison, i8 [[X:%.*]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <vscale x 8 x i8> [[BROADCAST_SPLATINSERT1]], <vscale x 8 x i8> poison, <vscale x 8 x i32> zeroinitializer
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <vscale x 8 x i16> poison, i16 [[Y:%.*]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT4:%.*]] = shufflevector <vscale x 8 x i16> [[BROADCAST_SPLATINSERT3]], <vscale x 8 x i16> poison, <vscale x 8 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP1:%.*]] = call <vscale x 8 x i8> @llvm.stepvector.nxv8i8()
+; CHECK-NEXT:    [[TMP2:%.*]] = mul <vscale x 8 x i8> [[TMP1]], splat (i8 1)
+; CHECK-NEXT:    [[INDUCTION:%.*]] = add <vscale x 8 x i8> splat (i8 -12), [[TMP2]]
 ; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK:       vector.body:
-; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <vscale x 2 x i8> [ [[INDUCTION]], [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[TMP11:%.*]] = udiv <vscale x 2 x i8> [[VEC_IND]], [[TMP6]]
-; CHECK-NEXT:    [[TMP12:%.*]] = zext <vscale x 2 x i8> [[TMP11]] to <vscale x 2 x i16>
-; CHECK-NEXT:    [[TMP13:%.*]] = sdiv <vscale x 2 x i16> [[TMP12]], [[TMP7]]
-; CHECK-NEXT:    [[TMP14:%.*]] = sext <vscale x 2 x i16> [[TMP13]] to <vscale x 2 x i32>
-; CHECK-NEXT:    [[PREDPHI:%.*]] = select i1 [[C]], <vscale x 2 x i32> zeroinitializer, <vscale x 2 x i32> [[TMP14]]
-; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], [[TMP3]]
-; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 2 x i8> [[VEC_IND]], [[BROADCAST_SPLAT7]]
-; CHECK-NEXT:    [[TMP15:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-NEXT:    br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
+; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <vscale x 8 x i8> [ [[INDUCTION]], [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[AVL:%.*]] = phi i32 [ 12, [[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP3:%.*]] = call i32 @llvm.experimental.get.vector.length.i32(i32 [[AVL]], i32 8, i1 true)
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT7:%.*]] = insertelement <vscale x 8 x i32> poison, i32 [[TMP3]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT8:%.*]] = shufflevector <vscale x 8 x i32> [[BROADCAST_SPLATINSERT7]], <vscale x 8 x i32> poison, <vscale x 8 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP4:%.*]] = trunc i32 [[TMP3]] to i8
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT5:%.*]] = insertelement <vscale x 8 x i8> poison, i8 [[TMP4]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT6:%.*]] = shufflevector <vscale x 8 x i8> [[BROADCAST_SPLATINSERT5]], <vscale x 8 x i8> poison, <vscale x 8 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP5:%.*]] = call <vscale x 8 x i32> @llvm.stepvector.nxv8i32()
+; CHECK-NEXT:    [[TMP15:%.*]] = icmp uge <vscale x 8 x i32> [[TMP5]], [[BROADCAST_SPLAT8]]
+; CHECK-NEXT:    [[TMP8:%.*]] = call <vscale x 8 x i8> @llvm.vp.merge.nxv8i8(<vscale x 8 x i1> [[TMP0]], <vscale x 8 x i8> [[BROADCAST_SPLAT2]], <vscale x 8 x i8> splat (i8 1), i32 [[TMP3]])
+; CHECK-NEXT:    [[TMP9:%.*]] = udiv <vscale x 8 x i8> [[VEC_IND]], [[TMP8]]
+; CHECK-NEXT:    [[TMP10:%.*]] = zext <vscale x 8 x i8> [[TMP9]] to <vscale x 8 x i16>
+; CHECK-NEXT:    [[TMP11:%.*]] = call <vscale x 8 x i16> @llvm.vp.merge.nxv8i16(<vscale x 8 x i1> [[TMP0]], <vscale x 8 x i16> [[BROADCAST_SPLAT4]], <vscale x 8 x i16> splat (i16 1), i32 [[TMP3]])
+; CHECK-NEXT:    [[TMP12:%.*]] = sdiv <vscale x 8 x i16> [[TMP10]], [[TMP11]]
+; CHECK-NEXT:    [[TMP13:%.*]] = sext <vscale x 8 x i16> [[TMP12]] to <vscale x 8 x i32>
+; CHECK-NEXT:    [[PREDPHI:%.*]] = select i1 [[C]], <vscale x 8 x i32> zeroinitializer, <vscale x 8 x i32> [[TMP13]]
+; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i32 [[AVL]], [[TMP3]]
+; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 8 x i8> [[VEC_IND]], [[BROADCAST_SPLAT6]]
+; CHECK-NEXT:    [[TMP14:%.*]] = icmp eq i32 [[AVL_NEXT]], 0
+; CHECK-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
 ; CHECK:       middle.block:
-; CHECK-NEXT:    [[TMP16:%.*]] = call i32 @llvm.vscale.i32()
-; CHECK-NEXT:    [[TMP17:%.*]] = mul nuw i32 [[TMP16]], 2
-; CHECK-NEXT:    [[TMP18:%.*]] = sub i32 [[TMP17]], 1
-; CHECK-NEXT:    [[TMP19:%.*]] = extractelement <vscale x 2 x i32> [[PREDPHI]], i32 [[TMP18]]
-; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i32 12, [[N_VEC]]
-; CHECK-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
-; CHECK:       scalar.ph:
-; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i16 [ [[TMP4]], [[MIDDLE_BLOCK]] ], [ -12, [[ENTRY:%.*]] ]
-; CHECK-NEXT:    [[BC_RESUME_VAL8:%.*]] = phi i8 [ [[TMP5]], [[MIDDLE_BLOCK]] ], [ -12, [[ENTRY]] ]
-; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
-; CHECK:       loop.header:
-; CHECK-NEXT:    [[IV:%.*]] = phi i16 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT:    [[NARROW_IV:%.*]] = phi i8 [ [[BC_RESUME_VAL8]], [[SCALAR_PH]] ], [ [[IV_NEXT_TRUNC:%.*]], [[LOOP_LATCH]] ]
-; CHECK-NEXT:    br i1 [[C]], label [[LOOP_LATCH]], label [[THEN:%.*]]
-; CHECK:       then:
-; CHECK-NEXT:    [[UD:%.*]] = udiv i8 [[NARROW_IV]], [[X]]
-; CHECK-NEXT:    [[UD_EXT:%.*]] = zext i8 [[UD]] to i16
-; CHECK-NEXT:    [[SD:%.*]] = sdiv i16 [[UD_EXT]], [[Y]]
-; CHECK-NEXT:    [[SD_EXT:%.*]] = sext i16 [[SD]] to i32
-; CHECK-NEXT:    br label [[LOOP_LATCH]]
-; CHECK:       loop.latch:
-; CHECK-NEXT:    [[MERGE:%.*]] = phi i32 [ 0, [[LOOP_HEADER]] ], [ [[SD_EXT]], [[THEN]] ]
-; CHECK-NEXT:    [[IV_NEXT]] = add nsw i16 [[IV]], 1
-; CHECK-NEXT:    [[EC:%.*]] = icmp eq i16 [[IV_NEXT]], 0
-; CHECK-NEXT:    [[IV_NEXT_TRUNC]] = trunc i16 [[IV_NEXT]] to i8
-; CHECK-NEXT:    br i1 [[EC]], label [[EXIT]], label [[LOOP_HEADER]], !llvm.loop [[LOOP12:![0-9]+]]
+; CHECK-NEXT:    [[TMP16:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv8i1(<vscale x 8 x i1> [[TMP15]], i1 false)
+; CHECK-NEXT:    [[TMP17:%.*]] = sub i64 [[TMP16]], 1
+; CHECK-NEXT:    [[TMP18:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT:    [[TMP19:%.*]] = mul nuw i64 [[TMP18]], 8
+; CHECK-NEXT:    [[TMP20:%.*]] = mul i64 [[TMP19]], 0
+; CHECK-NEXT:    [[MERGE_LCSSA:%.*]] = extractelement <vscale x 8 x i32> [[PREDPHI]], i64 [[TMP17]]
+; CHECK-NEXT:    br label [[LOOP_LATCH:%.*]]
 ; CHECK:       exit:
-; CHECK-NEXT:    [[MERGE_LCSSA:%.*]] = phi i32 [ [[MERGE]], [[LOOP_LATCH]] ], [ [[TMP19]], [[MIDDLE_BLOCK]] ]
 ; CHECK-NEXT:    ret i32 [[MERGE_LCSSA]]
 ;
 ; FIXED-LABEL: @udiv_sdiv_with_invariant_divisors(
diff --git a/llvm/test/Transforms/LoopVectorize/RISCV/first-order-recurrence-scalable-vf1.ll b/llvm/test/Transforms/LoopVectorize/RISCV/first-order-recurrence-scalable-vf1.ll
index 7eb3d7fc5a36d..97c9fd75a42bb 100644
--- a/llvm/test/Transforms/LoopVectorize/RISCV/first-order-recurrence-scalable-vf1.ll
+++ b/llvm/test/Transforms/LoopVectorize/RISCV/first-order-recurrence-scalable-vf1.ll
@@ -7,55 +7,54 @@ target triple = "riscv64-unknown-linux-gnu"
 define i64 @pr97452_scalable_vf1_for(ptr %src, ptr noalias %dst) #0 {
 ; CHECK-LABEL: define i64 @pr97452_scalable_vf1_for(
 ; CHECK-SAME: ptr [[SRC:%.*]], ptr noalias [[DST:%.*]]) #[[ATTR0:[0-9]+]] {
-; CHECK-NEXT:  [[ENTRY:.*]]:
-; CHECK-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 23, [[TMP0]]
-; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; CHECK-NEXT:  [[ENTRY:.*:]]
+; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
 ; CHECK:       [[VECTOR_PH]]:
-; CHECK-NEXT:    [[TMP1:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i64 23, [[TMP1]]
-; CHECK-NEXT:    [[N_VEC:%.*]] = sub i64 23, [[N_MOD_VF]]
+; CHECK-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT:    [[TMP1:%.*]] = mul nuw i64 [[TMP0]], 2
+; CHECK-NEXT:    [[TMP2:%.*]] = trunc i64 [[TMP1]] to i32
 ; CHECK-NEXT:    [[TMP3:%.*]] = call i32 @llvm.vscale.i32()
-; CHECK-NEXT:    [[TMP4:%.*]] = sub i32 [[TMP3]], 1
-; CHECK-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 1 x i64> poison, i64 0, i32 [[TMP4]]
+; CHECK-NEXT:    [[TMP4:%.*]] = mul nuw i32 [[TMP3]], 2
+; CHECK-NEXT:    [[TMP5:%.*]] = sub i32 [[TMP4]], 1
+; CHECK-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 0, i32 [[TMP5]]
 ; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
 ; CHECK:       [[VECTOR_BODY]]:
-; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 1 x i64> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], %[[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[SRC]], i64 [[INDEX]]
-; CHECK-NEXT:    [[WIDE_LOAD]] = load <vscale x 1 x i64>, ptr [[TMP5]], align 8
-; CHECK-NEXT:    [[TMP7:%.*]] = call <vscale x 1 x i64> @llvm.vector.splice.nxv1i64(<vscale x 1 x i64> [[VECTOR_RECUR]], <vscale x 1 x i64> [[WIDE_LOAD]], i32 -1)
-; CHECK-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[DST]], i64 [[INDEX]]
-; CHECK-NEXT:    store <vscale x 1 x i64> [[TMP7]], ptr [[TMP8]], align 8
-; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP1]]
-; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 2 x i64> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[VP_OP_LOAD:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[AVL:%.*]] = phi i64 [ 23, %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[PREV_EVL:%.*]] = phi i32 [ [[TMP2]], %[[VECTOR_PH]] ], [ [[TMP6:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP6]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 2, i1 true)
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i32> poison, i32 [[TMP6]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i32> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i32> poison, <vscale x 2 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP7:%.*]] = call <vscale x 2 x i32> @llvm.stepvector.nxv2i32()
+; CHECK-NEXT:    [[TMP8:%.*]] = icmp uge <vscale x 2 x i32> [[TMP7]], [[BROADCAST_SPLAT]]
+; CHECK-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i64, ptr [[SRC]], i64 [[EVL_BASED_IV]]
+; CHECK-NEXT:    [[VP_OP_LOAD]] = call <vscale x 2 x i64> @llvm.vp.load.nxv2i64.p0(ptr align 8 [[TMP9]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP6]])
+; CHECK-NEXT:    [[TMP10:%.*]] = call <vscale x 2 x i64> @llvm.experimental.vp.splice.nxv2i64(<vscale x 2 x i64> [[VECTOR_RECUR]], <vscale x 2 x i64> [[VP_OP_LOAD]], i32 -1, <vscale x 2 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP6]])
+; CHECK-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i64, ptr [[DST]], i64 [[EVL_BASED_IV]]
+; CHECK-NEXT:    call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[TMP10]], ptr align 8 [[TMP11]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP6]])
+; CHECK-NEXT:    [[TMP12:%.*]] = zext i32 [[TMP6]] to i64
+; CHECK-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP12]], [[EVL_BASED_IV]]
+; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP12]]
+; CHECK-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
+; CHECK-NEXT:    br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; CHECK:       [[MIDDLE_BLOCK]]:
-; CHECK-NEXT:    [[TMP11:%.*]] = call i32 @llvm.vscale.i32()
-; CHECK-NEXT:    [[TMP12:%.*]] = sub i32 [[TMP11]], 1
-; CHECK-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 1 x i64> [[WIDE_LOAD]], i32 [[TMP12]]
-; CHECK-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vscale.i32()
-; CHECK-NEXT:    [[TMP15:%.*]] = sub i32 [[TMP14]], 1
-; CHECK-NEXT:    [[TMP16:%.*]] = extractelement <vscale x 1 x i64> [[TMP7]], i32 [[TMP15]]
-; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 23, [[N_VEC]]
-; CHECK-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
-; CHECK:       [[SCALAR_PH]]:
-; CHECK-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i64 [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
-; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
-; CHECK-NEXT:    br label %[[LOOP:.*]]
-; CHECK:       [[LOOP]]:
-; CHECK-NEXT:    [[FOR:%.*]] = phi i64 [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[L:%.*]], %[[LOOP]] ]
-; CHECK-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; CHECK-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
-; CHECK-NEXT:    [[GEP_SRC:%.*]] = getelementptr inbounds i64, ptr [[SRC]], i64 [[IV]]
-; CHECK-NEXT:    [[L]] = load i64, ptr [[GEP_SRC]], align 8
-; CHECK-NEXT:    [[GEP_DST:%.*]] = getelementptr inbounds i64, ptr [[DST]], i64 [[IV]]
-; CHECK-NEXT:    store i64 [[FOR]], ptr [[GEP_DST]], align 8
-; CHECK-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV]], 22
-; CHECK-NEXT:    br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP3:![0-9]+]]
+; CHECK-NEXT:    [[TMP14:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv2i1(<vscale x 2 x i1> [[TMP8]], i1 false)
+; CHECK-NEXT:    [[TMP15:%.*]] = sub i64 [[TMP14]], 1
+; CHECK-NEXT:    [[TMP16:%.*]] = sub i64 [[TMP15]], 1
+; CHECK-NEXT:    [[TMP17:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT:    [[TMP18:%.*]] = mul nuw i64 [[TMP17]], 2
+; CHECK-NEXT:    [[TMP19:%.*]] = mul i64 [[TMP18]], 0
+; CHECK-NEXT:    [[TMP20:%.*]] = extractelement <vscale x 2 x i64> [[VP_OP_LOAD]], i64 [[TMP16]]
+; CHECK-NEXT:    [[TMP21:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-NEXT:    [[TMP22:%.*]] = mul nuw i32 [[TMP21]], 2
+; CHECK-NEXT:    [[TMP23:%.*]] = sub i32 [[TMP22]], 1
+; CHECK-NEXT:    [[TMP24:%.*]] = extractelement <vscale x 2 x i64> [[VECTOR_RECUR]], i32 [[TMP23]]
+; CHECK-NEXT:    [[TMP25:%.*]] = icmp eq i64 [[TMP15]], 0
+; CHECK-NEXT:    [[TMP26:%.*]] = select i1 [[TMP25]], i64 [[TMP24]], i64 [[TMP20]]
+; CHECK-NEXT:    br label %[[EXIT:.*]]
 ; CHECK:       [[EXIT]]:
-; CHECK-NEXT:    [[RES:%.*]] = phi i64 [ [[FOR]], %[[LOOP]] ], [ [[TMP16]], %[[MIDDLE_BLOCK]] ]
-; CHECK-NEXT:    ret i64 [[RES]]
+; CHECK-NEXT:    ret i64 [[TMP26]]
 ;
 entry:
   br label %loop
@@ -81,5 +80,4 @@ attributes #0 = { "target-features"="+64bit,+v,+zvl128b,+zvl256b" }
 ; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
 ; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
 ; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
-; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
 ;.
diff --git a/llvm/test/Transforms/LoopVectorize/RISCV/scalable-tailfold.ll b/llvm/test/Transforms/LoopVectorize/RISCV/scalable-tailfold.ll
index 3c90908b0a08f..361ff00674758 100644
--- a/llvm/test/Transforms/LoopVectorize/RISCV/scalable-tailfold.ll
+++ b/llvm/test/Transforms/LoopVectorize/RISCV/scalable-tailfold.ll
@@ -71,7 +71,7 @@ define void @indexed_store(ptr noalias nocapture %a, ptr noalias nocapture %b, i
 ; CHECK-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP12]], [[EVL_BASED_IV]]
 ; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP12]]
 ; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; CHECK-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK:       for.end:
@@ -115,7 +115,7 @@ define i64 @indexed_load(ptr noalias nocapture %a, ptr noalias nocapture %b, i64
 ; CHECK-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP15]], [[EVL_BASED_IV]]
 ; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP15]]
 ; CHECK-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; CHECK-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; CHECK-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    [[TMP14:%.*]] = call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> [[TMP11]])
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
@@ -159,7 +159,7 @@ define void @splat_int(ptr noalias nocapture %a, i64 %v, i64 %n) {
 ; CHECK-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP7]], [[EVL_BASED_IV]]
 ; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP7]]
 ; CHECK-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; CHECK-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; CHECK-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK:       for.end:
@@ -199,7 +199,7 @@ define void @uniform_store(ptr noalias nocapture %a, ptr noalias nocapture %b, i
 ; CHECK-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP9]], [[EVL_BASED_IV]]
 ; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP9]]
 ; CHECK-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; CHECK-NEXT:    br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; CHECK-NEXT:    br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK:       for.end:
@@ -224,43 +224,37 @@ for.end:
 define i64 @uniform_load(ptr noalias nocapture %a, ptr noalias nocapture %b, i64 %n) {
 ; CHECK-LABEL: @uniform_load(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 1
-; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1025, [[TMP1]]
-; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[ENTRY:%.*]]
+; CHECK-NEXT:    br label [[ENTRY:%.*]]
 ; CHECK:       vector.ph:
-; CHECK-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 2
-; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1025, [[TMP3]]
-; CHECK-NEXT:    [[N_VEC:%.*]] = sub i64 1025, [[N_MOD_VF]]
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK:       vector.body:
 ; CHECK-NEXT:    [[IV:%.*]] = phi i64 [ 0, [[ENTRY]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-NEXT:    [[AVL:%.*]] = phi i64 [ 1025, [[ENTRY]] ], [ [[AVL_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-NEXT:    [[TMP0:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 2, i1 true)
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <vscale x 2 x i32> poison, i32 [[TMP0]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT1:%.*]] = shufflevector <vscale x 2 x i32> [[BROADCAST_SPLATINSERT1]], <vscale x 2 x i32> poison, <vscale x 2 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP1:%.*]] = call <vscale x 2 x i32> @llvm.stepvector.nxv2i32()
+; CHECK-NEXT:    [[TMP2:%.*]] = icmp uge <vscale x 2 x i32> [[TMP1]], [[BROADCAST_SPLAT1]]
 ; CHECK-NEXT:    [[V:%.*]] = load i64, ptr [[B:%.*]], align 8
 ; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[V]], i64 0
 ; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
 ; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[IV]]
-; CHECK-NEXT:    store <vscale x 2 x i64> [[BROADCAST_SPLAT]], ptr [[ARRAYIDX]], align 8
-; CHECK-NEXT:    [[IV_NEXT]] = add nuw i64 [[IV]], [[TMP3]]
-; CHECK-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[IV_NEXT]], [[N_VEC]]
-; CHECK-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[FOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; CHECK-NEXT:    call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[BROADCAST_SPLAT]], ptr align 8 [[ARRAYIDX]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP0]])
+; CHECK-NEXT:    [[TMP5:%.*]] = zext i32 [[TMP0]] to i64
+; CHECK-NEXT:    [[IV_NEXT]] = add nuw i64 [[TMP5]], [[IV]]
+; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP5]]
+; CHECK-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
+; CHECK-NEXT:    br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
 ; CHECK:       middle.block:
-; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1025, [[N_VEC]]
-; CHECK-NEXT:    br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
-; CHECK:       scalar.ph:
-; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY1:%.*]] ]
+; CHECK-NEXT:    [[TMP7:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv2i1(<vscale x 2 x i1> [[TMP2]], i1 false)
+; CHECK-NEXT:    [[TMP8:%.*]] = sub i64 [[TMP7]], 1
+; CHECK-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT:    [[TMP10:%.*]] = mul nuw i64 [[TMP9]], 2
+; CHECK-NEXT:    [[TMP11:%.*]] = mul i64 [[TMP10]], 0
+; CHECK-NEXT:    [[TMP12:%.*]] = extractelement <vscale x 2 x i64> [[BROADCAST_SPLAT]], i64 [[TMP8]]
 ; CHECK-NEXT:    br label [[FOR_BODY1:%.*]]
-; CHECK:       for.body:
-; CHECK-NEXT:    [[IV1:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT1:%.*]], [[FOR_BODY1]] ]
-; CHECK-NEXT:    [[V1:%.*]] = load i64, ptr [[B]], align 8
-; CHECK-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV1]]
-; CHECK-NEXT:    store i64 [[V1]], ptr [[ARRAYIDX1]], align 8
-; CHECK-NEXT:    [[IV_NEXT1]] = add nuw nsw i64 [[IV1]], 1
-; CHECK-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT1]], 1025
-; CHECK-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY1]], !llvm.loop [[LOOP9:![0-9]+]]
 ; CHECK:       for.end:
-; CHECK-NEXT:    [[V_LCSSA:%.*]] = phi i64 [ [[V1]], [[FOR_BODY1]] ], [ [[V]], [[MIDDLE_BLOCK]] ]
-; CHECK-NEXT:    ret i64 [[V_LCSSA]]
+; CHECK-NEXT:    ret i64 [[TMP12]]
 ;
 entry:
   br label %for.body
@@ -299,7 +293,7 @@ define void @vector_add_trip1024(ptr noalias nocapture %a, i64 %v, i64 %n) {
 ; CHECK-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP8]], [[EVL_BASED_IV]]
 ; CHECK-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP8]]
 ; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; CHECK-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
+; CHECK-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK:       for.end:
diff --git a/llvm/test/Transforms/LoopVectorize/RISCV/tail-folding-fixed-order-recurrence.ll b/llvm/test/Transforms/LoopVectorize/RISCV/tail-folding-fixed-order-recurrence.ll
index a3bec999425a3..d6936a4871ed5 100644
--- a/llvm/test/Transforms/LoopVectorize/RISCV/tail-folding-fixed-order-recurrence.ll
+++ b/llvm/test/Transforms/LoopVectorize/RISCV/tail-folding-fixed-order-recurrence.ll
@@ -400,61 +400,54 @@ for.end:
 define i32 @FOR_reduction(ptr noalias %A, ptr noalias %B, i64 %TC) {
 ; IF-EVL-LABEL: define i32 @FOR_reduction(
 ; IF-EVL-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
-; IF-EVL-NEXT:  [[ENTRY:.*]]:
-; IF-EVL-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
-; IF-EVL-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP9]], 2
-; IF-EVL-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TC]], [[TMP1]]
-; IF-EVL-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; IF-EVL-NEXT:  [[ENTRY:.*:]]
+; IF-EVL-NEXT:    br label %[[VECTOR_PH:.*]]
 ; IF-EVL:       [[VECTOR_PH]]:
 ; IF-EVL-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
 ; IF-EVL-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
-; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TC]], [[TMP3]]
-; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[TC]], [[N_MOD_VF]]
+; IF-EVL-NEXT:    [[TMP4:%.*]] = trunc i64 [[TMP3]] to i32
 ; IF-EVL-NEXT:    [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
 ; IF-EVL-NEXT:    [[TMP7:%.*]] = mul nuw i32 [[TMP6]], 4
 ; IF-EVL-NEXT:    [[TMP8:%.*]] = sub i32 [[TMP7]], 1
 ; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP8]]
 ; IF-EVL-NEXT:    br label %[[VECTOR_BODY:.*]]
 ; IF-EVL:       [[VECTOR_BODY]]:
-; IF-EVL-NEXT:    [[INDVARS:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; IF-EVL-NEXT:    [[INDVARS:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
 ; IF-EVL-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], %[[VECTOR_BODY]] ]
+; IF-EVL-NEXT:    [[AVL:%.*]] = phi i64 [ [[TC]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; IF-EVL-NEXT:    [[PREV_EVL:%.*]] = phi i32 [ [[TMP4]], %[[VECTOR_PH]] ], [ [[TMP9:%.*]], %[[VECTOR_BODY]] ]
+; IF-EVL-NEXT:    [[TMP9]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 4, i1 true)
+; IF-EVL-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 [[TMP9]], i64 0
+; IF-EVL-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x i32> [[BROADCAST_SPLATINSERT]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
+; IF-EVL-NEXT:    [[TMP22:%.*]] = call <vscale x 4 x i32> @llvm.stepvector.nxv4i32()
+; IF-EVL-NEXT:    [[TMP23:%.*]] = icmp uge <vscale x 4 x i32> [[TMP22]], [[BROADCAST_SPLAT]]
 ; IF-EVL-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
-; IF-EVL-NEXT:    [[WIDE_LOAD]] = load <vscale x 4 x i32>, ptr [[ARRAYIDX]], align 4
-; IF-EVL-NEXT:    [[TMP10:%.*]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[WIDE_LOAD]], i32 -1)
+; IF-EVL-NEXT:    [[WIDE_LOAD]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[ARRAYIDX]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP9]])
+; IF-EVL-NEXT:    [[TMP10:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[WIDE_LOAD]], i32 -1, <vscale x 4 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP9]])
 ; IF-EVL-NEXT:    [[TMP11:%.*]] = add nsw <vscale x 4 x i32> [[TMP10]], [[WIDE_LOAD]]
 ; IF-EVL-NEXT:    [[TMP12:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
-; IF-EVL-NEXT:    store <vscale x 4 x i32> [[TMP11]], ptr [[TMP12]], align 4
-; IF-EVL-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDVARS]], [[TMP3]]
-; IF-EVL-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; IF-EVL-NEXT:    br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[TMP11]], ptr align 4 [[TMP12]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP9]])
+; IF-EVL-NEXT:    [[TMP13:%.*]] = zext i32 [[TMP9]] to i64
+; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP13]], [[INDVARS]]
+; IF-EVL-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP13]]
+; IF-EVL-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
+; IF-EVL-NEXT:    br i1 [[TMP24]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
 ; IF-EVL:       [[MIDDLE_BLOCK]]:
+; IF-EVL-NEXT:    [[TMP27:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv4i1(<vscale x 4 x i1> [[TMP23]], i1 false)
+; IF-EVL-NEXT:    [[TMP28:%.*]] = sub i64 [[TMP27]], 1
+; IF-EVL-NEXT:    [[TMP17:%.*]] = sub i64 [[TMP28]], 1
+; IF-EVL-NEXT:    [[TMP18:%.*]] = call i64 @llvm.vscale.i64()
+; IF-EVL-NEXT:    [[TMP19:%.*]] = mul nuw i64 [[TMP18]], 4
+; IF-EVL-NEXT:    [[TMP20:%.*]] = mul i64 [[TMP19]], 0
+; IF-EVL-NEXT:    [[TMP21:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i64 [[TMP17]]
 ; IF-EVL-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vscale.i32()
 ; IF-EVL-NEXT:    [[TMP15:%.*]] = mul nuw i32 [[TMP14]], 4
 ; IF-EVL-NEXT:    [[TMP16:%.*]] = sub i32 [[TMP15]], 1
-; IF-EVL-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP16]]
-; IF-EVL-NEXT:    [[TMP17:%.*]] = call i32 @llvm.vscale.i32()
-; IF-EVL-NEXT:    [[TMP18:%.*]] = mul nuw i32 [[TMP17]], 4
-; IF-EVL-NEXT:    [[TMP19:%.*]] = sub i32 [[TMP18]], 2
-; IF-EVL-NEXT:    [[VECTOR_RECUR_EXTRACT_FOR_PHI:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP19]]
-; IF-EVL-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TC]], [[N_VEC]]
-; IF-EVL-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
-; IF-EVL:       [[SCALAR_PH]]:
-; IF-EVL-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
-; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 33, %[[ENTRY]] ]
-; IF-EVL-NEXT:    br label %[[FOR_BODY:.*]]
-; IF-EVL:       [[FOR_BODY]]:
-; IF-EVL-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
-; IF-EVL-NEXT:    [[FOR1:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[TMP0:%.*]], %[[FOR_BODY]] ]
-; IF-EVL-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[IV]]
-; IF-EVL-NEXT:    [[TMP0]] = load i32, ptr [[ARRAYIDX1]], align 4
-; IF-EVL-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR1]], [[TMP0]]
-; IF-EVL-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[IV]]
-; IF-EVL-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX2]], align 4
-; IF-EVL-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[IV]], 1
-; IF-EVL-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
-; IF-EVL-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; IF-EVL-NEXT:    [[TMP25:%.*]] = extractelement <vscale x 4 x i32> [[VECTOR_RECUR]], i32 [[TMP16]]
+; IF-EVL-NEXT:    [[TMP26:%.*]] = icmp eq i64 [[TMP28]], 0
+; IF-EVL-NEXT:    [[FOR1_LCSSA:%.*]] = select i1 [[TMP26]], i32 [[TMP25]], i32 [[TMP21]]
+; IF-EVL-NEXT:    br label %[[FOR_END:.*]]
 ; IF-EVL:       [[FOR_END]]:
-; IF-EVL-NEXT:    [[FOR1_LCSSA:%.*]] = phi i32 [ [[FOR1]], %[[FOR_BODY]] ], [ [[VECTOR_RECUR_EXTRACT_FOR_PHI]], %[[MIDDLE_BLOCK]] ]
 ; IF-EVL-NEXT:    ret i32 [[FOR1_LCSSA]]
 ;
 ; NO-VP-LABEL: define i32 @FOR_reduction(
@@ -570,7 +563,7 @@ define void @first_order_recurrence_indvar(ptr noalias %A, i64 %TC) {
 ; IF-EVL-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP7]]
 ; IF-EVL-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
 ; IF-EVL-NEXT:    [[TMP22:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; IF-EVL-NEXT:    br i1 [[TMP22]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; IF-EVL-NEXT:    br i1 [[TMP22]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
 ; IF-EVL:       [[MIDDLE_BLOCK]]:
 ; IF-EVL-NEXT:    br label %[[FOR_END:.*]]
 ; IF-EVL:       [[FOR_END]]:
@@ -662,8 +655,7 @@ for.end:
 ; IF-EVL: [[LOOP3]] = distinct !{[[LOOP3]], [[META1]], [[META2]]}
 ; IF-EVL: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
 ; IF-EVL: [[LOOP5]] = distinct !{[[LOOP5]], [[META1]], [[META2]]}
-; IF-EVL: [[LOOP6]] = distinct !{[[LOOP6]], [[META2]], [[META1]]}
-; IF-EVL: [[LOOP7]] = distinct !{[[LOOP7]], [[META1]], [[META2]]}
+; IF-EVL: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]}
 ;.
 ; NO-VP: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
 ; NO-VP: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
diff --git a/llvm/test/Transforms/LoopVectorize/RISCV/uniform-load-store.ll b/llvm/test/Transforms/LoopVectorize/RISCV/uniform-load-store.ll
index 0375f0a8fd132..e8d874a2957e3 100644
--- a/llvm/test/Transforms/LoopVectorize/RISCV/uniform-load-store.ll
+++ b/llvm/test/Transforms/LoopVectorize/RISCV/uniform-load-store.ll
@@ -109,44 +109,38 @@ for.end:
 define i64 @uniform_load_outside_use(ptr noalias nocapture %a, ptr noalias nocapture %b, i64 %n) {
 ; SCALABLE-LABEL: define i64 @uniform_load_outside_use(
 ; SCALABLE-SAME: ptr noalias captures(none) [[A:%.*]], ptr noalias captures(none) [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
-; SCALABLE-NEXT:  [[ENTRY:.*]]:
-; SCALABLE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; SCALABLE-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 1
-; SCALABLE-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1025, [[TMP1]]
-; SCALABLE-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; SCALABLE-NEXT:  [[ENTRY:.*:]]
+; SCALABLE-NEXT:    br label %[[VECTOR_PH:.*]]
 ; SCALABLE:       [[VECTOR_PH]]:
-; SCALABLE-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
-; SCALABLE-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 2
-; SCALABLE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1025, [[TMP3]]
-; SCALABLE-NEXT:    [[N_VEC:%.*]] = sub i64 1025, [[N_MOD_VF]]
 ; SCALABLE-NEXT:    br label %[[VECTOR_BODY:.*]]
 ; SCALABLE:       [[VECTOR_BODY]]:
-; SCALABLE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; SCALABLE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; SCALABLE-NEXT:    [[AVL:%.*]] = phi i64 [ 1025, %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; SCALABLE-NEXT:    [[TMP0:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 2, i1 true)
+; SCALABLE-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <vscale x 2 x i32> poison, i32 [[TMP0]], i64 0
+; SCALABLE-NEXT:    [[BROADCAST_SPLAT1:%.*]] = shufflevector <vscale x 2 x i32> [[BROADCAST_SPLATINSERT1]], <vscale x 2 x i32> poison, <vscale x 2 x i32> zeroinitializer
+; SCALABLE-NEXT:    [[TMP1:%.*]] = call <vscale x 2 x i32> @llvm.stepvector.nxv2i32()
+; SCALABLE-NEXT:    [[TMP2:%.*]] = icmp uge <vscale x 2 x i32> [[TMP1]], [[BROADCAST_SPLAT1]]
 ; SCALABLE-NEXT:    [[TMP6:%.*]] = load i64, ptr [[B]], align 8
 ; SCALABLE-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[TMP6]], i64 0
 ; SCALABLE-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
 ; SCALABLE-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
-; SCALABLE-NEXT:    store <vscale x 2 x i64> [[BROADCAST_SPLAT]], ptr [[TMP8]], align 8
-; SCALABLE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
-; SCALABLE-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; SCALABLE-NEXT:    call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[BROADCAST_SPLAT]], ptr align 8 [[TMP8]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP0]])
+; SCALABLE-NEXT:    [[TMP5:%.*]] = zext i32 [[TMP0]] to i64
+; SCALABLE-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP5]], [[INDEX]]
+; SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP5]]
+; SCALABLE-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
 ; SCALABLE-NEXT:    br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
 ; SCALABLE:       [[MIDDLE_BLOCK]]:
-; SCALABLE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1025, [[N_VEC]]
-; SCALABLE-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
-; SCALABLE:       [[SCALAR_PH]]:
-; SCALABLE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
-; SCALABLE-NEXT:    br label %[[FOR_BODY:.*]]
-; SCALABLE:       [[FOR_BODY]]:
-; SCALABLE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
-; SCALABLE-NEXT:    [[V:%.*]] = load i64, ptr [[B]], align 8
-; SCALABLE-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
-; SCALABLE-NEXT:    store i64 [[V]], ptr [[ARRAYIDX]], align 8
-; SCALABLE-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
-; SCALABLE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1025
-; SCALABLE-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; SCALABLE-NEXT:    [[FIRST_INACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv2i1(<vscale x 2 x i1> [[TMP2]], i1 false)
+; SCALABLE-NEXT:    [[LAST_ACTIVE_LANE:%.*]] = sub i64 [[FIRST_INACTIVE_LANE]], 1
+; SCALABLE-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
+; SCALABLE-NEXT:    [[TMP11:%.*]] = mul nuw i64 [[TMP7]], 2
+; SCALABLE-NEXT:    [[TMP9:%.*]] = mul i64 [[TMP11]], 0
+; SCALABLE-NEXT:    [[TMP12:%.*]] = extractelement <vscale x 2 x i64> [[BROADCAST_SPLAT]], i64 [[LAST_ACTIVE_LANE]]
+; SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; SCALABLE:       [[FOR_END]]:
-; SCALABLE-NEXT:    [[V_LCSSA:%.*]] = phi i64 [ [[V]], %[[FOR_BODY]] ], [ [[TMP6]], %[[MIDDLE_BLOCK]] ]
-; SCALABLE-NEXT:    ret i64 [[V_LCSSA]]
+; SCALABLE-NEXT:    ret i64 [[TMP12]]
 ;
 ; FIXEDLEN-LABEL: define i64 @uniform_load_outside_use(
 ; FIXEDLEN-SAME: ptr noalias captures(none) [[A:%.*]], ptr noalias captures(none) [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
@@ -184,44 +178,38 @@ define i64 @uniform_load_outside_use(ptr noalias nocapture %a, ptr noalias nocap
 ;
 ; TF-SCALABLE-LABEL: define i64 @uniform_load_outside_use(
 ; TF-SCALABLE-SAME: ptr noalias captures(none) [[A:%.*]], ptr noalias captures(none) [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
-; TF-SCALABLE-NEXT:  [[ENTRY:.*]]:
-; TF-SCALABLE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; TF-SCALABLE-NEXT:    [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 1
-; TF-SCALABLE-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1025, [[TMP1]]
-; TF-SCALABLE-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
+; TF-SCALABLE-NEXT:  [[ENTRY:.*:]]
+; TF-SCALABLE-NEXT:    br label %[[VECTOR_PH:.*]]
 ; TF-SCALABLE:       [[VECTOR_PH]]:
-; TF-SCALABLE-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
-; TF-SCALABLE-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 2
-; TF-SCALABLE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1025, [[TMP3]]
-; TF-SCALABLE-NEXT:    [[N_VEC:%.*]] = sub i64 1025, [[N_MOD_VF]]
 ; TF-SCALABLE-NEXT:    br label %[[VECTOR_BODY:.*]]
 ; TF-SCALABLE:       [[VECTOR_BODY]]:
-; TF-SCALABLE-NEXT:    [[IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; TF-SCALABLE-NEXT:    [[IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; TF-SCALABLE-NEXT:    [[AVL:%.*]] = phi i64 [ 1025, %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; TF-SCALABLE-NEXT:    [[TMP0:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 2, i1 true)
+; TF-SCALABLE-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <vscale x 2 x i32> poison, i32 [[TMP0]], i64 0
+; TF-SCALABLE-NEXT:    [[BROADCAST_SPLAT1:%.*]] = shufflevector <vscale x 2 x i32> [[BROADCAST_SPLATINSERT1]], <vscale x 2 x i32> poison, <vscale x 2 x i32> zeroinitializer
+; TF-SCALABLE-NEXT:    [[TMP1:%.*]] = call <vscale x 2 x i32> @llvm.stepvector.nxv2i32()
+; TF-SCALABLE-NEXT:    [[TMP2:%.*]] = icmp uge <vscale x 2 x i32> [[TMP1]], [[BROADCAST_SPLAT1]]
 ; TF-SCALABLE-NEXT:    [[V:%.*]] = load i64, ptr [[B]], align 8
 ; TF-SCALABLE-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[V]], i64 0
 ; TF-SCALABLE-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
 ; TF-SCALABLE-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
-; TF-SCALABLE-NEXT:    store <vscale x 2 x i64> [[BROADCAST_SPLAT]], ptr [[ARRAYIDX]], align 8
-; TF-SCALABLE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[IV]], [[TMP3]]
-; TF-SCALABLE-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; TF-SCALABLE-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; TF-SCALABLE-NEXT:    call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[BROADCAST_SPLAT]], ptr align 8 [[ARRAYIDX]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP0]])
+; TF-SCALABLE-NEXT:    [[TMP5:%.*]] = zext i32 [[TMP0]] to i64
+; TF-SCALABLE-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP5]], [[IV]]
+; TF-SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP5]]
+; TF-SCALABLE-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
+; TF-SCALABLE-NEXT:    br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
 ; TF-SCALABLE:       [[MIDDLE_BLOCK]]:
-; TF-SCALABLE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1025, [[N_VEC]]
-; TF-SCALABLE-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
-; TF-SCALABLE:       [[SCALAR_PH]]:
-; TF-SCALABLE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
-; TF-SCALABLE-NEXT:    br label %[[FOR_BODY:.*]]
-; TF-SCALABLE:       [[FOR_BODY]]:
-; TF-SCALABLE-NEXT:    [[IV1:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
-; TF-SCALABLE-NEXT:    [[V1:%.*]] = load i64, ptr [[B]], align 8
-; TF-SCALABLE-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV1]]
-; TF-SCALABLE-NEXT:    store i64 [[V1]], ptr [[ARRAYIDX1]], align 8
-; TF-SCALABLE-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV1]], 1
-; TF-SCALABLE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1025
-; TF-SCALABLE-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; TF-SCALABLE-NEXT:    [[FIRST_INACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.nxv2i1(<vscale x 2 x i1> [[TMP2]], i1 false)
+; TF-SCALABLE-NEXT:    [[LAST_ACTIVE_LANE:%.*]] = sub i64 [[FIRST_INACTIVE_LANE]], 1
+; TF-SCALABLE-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
+; TF-SCALABLE-NEXT:    [[TMP8:%.*]] = mul nuw i64 [[TMP7]], 2
+; TF-SCALABLE-NEXT:    [[TMP9:%.*]] = mul i64 [[TMP8]], 0
+; TF-SCALABLE-NEXT:    [[TMP12:%.*]] = extractelement <vscale x 2 x i64> [[BROADCAST_SPLAT]], i64 [[LAST_ACTIVE_LANE]]
+; TF-SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; TF-SCALABLE:       [[FOR_END]]:
-; TF-SCALABLE-NEXT:    [[V_LCSSA:%.*]] = phi i64 [ [[V1]], %[[FOR_BODY]] ], [ [[V]], %[[MIDDLE_BLOCK]] ]
-; TF-SCALABLE-NEXT:    ret i64 [[V_LCSSA]]
+; TF-SCALABLE-NEXT:    ret i64 [[TMP12]]
 ;
 entry:
   br label %for.body
@@ -269,7 +257,7 @@ define void @conditional_uniform_load(ptr noalias nocapture %a, ptr noalias noca
 ; SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP8]]
 ; SCALABLE-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 4 x i64> [[VEC_IND]], [[DOTSPLAT]]
 ; SCALABLE-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; SCALABLE-NEXT:    br i1 [[TMP14]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; SCALABLE-NEXT:    br i1 [[TMP14]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
 ; SCALABLE:       [[MIDDLE_BLOCK]]:
 ; SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; SCALABLE:       [[FOR_END]]:
@@ -350,7 +338,7 @@ define void @conditional_uniform_load(ptr noalias nocapture %a, ptr noalias noca
 ; TF-SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP11]]
 ; TF-SCALABLE-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 4 x i64> [[VEC_IND]], [[DOTSPLAT]]
 ; TF-SCALABLE-NEXT:    [[TMP17:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; TF-SCALABLE-NEXT:    br i1 [[TMP17]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; TF-SCALABLE-NEXT:    br i1 [[TMP17]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
 ; TF-SCALABLE:       [[MIDDLE_BLOCK]]:
 ; TF-SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; TF-SCALABLE:       [[FOR_END]]:
@@ -399,7 +387,7 @@ define void @uniform_load_unaligned(ptr noalias nocapture %a, ptr noalias nocapt
 ; SCALABLE-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP11]], [[INDEX]]
 ; SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP11]]
 ; SCALABLE-NEXT:    [[TMP7:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; SCALABLE-NEXT:    br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; SCALABLE-NEXT:    br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
 ; SCALABLE:       [[MIDDLE_BLOCK]]:
 ; SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; SCALABLE:       [[FOR_END]]:
@@ -457,7 +445,7 @@ define void @uniform_load_unaligned(ptr noalias nocapture %a, ptr noalias nocapt
 ; TF-SCALABLE-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP8]], [[INDEX]]
 ; TF-SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP8]]
 ; TF-SCALABLE-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; TF-SCALABLE-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; TF-SCALABLE-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
 ; TF-SCALABLE:       [[MIDDLE_BLOCK]]:
 ; TF-SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; TF-SCALABLE:       [[FOR_END]]:
@@ -499,7 +487,7 @@ define void @uniform_store(ptr noalias nocapture %a, ptr noalias nocapture %b, i
 ; SCALABLE-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP10]], [[INDEX]]
 ; SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP10]]
 ; SCALABLE-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; SCALABLE-NEXT:    br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; SCALABLE-NEXT:    br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
 ; SCALABLE:       [[MIDDLE_BLOCK]]:
 ; SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; SCALABLE:       [[FOR_END]]:
@@ -557,7 +545,7 @@ define void @uniform_store(ptr noalias nocapture %a, ptr noalias nocapture %b, i
 ; TF-SCALABLE-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP7]], [[INDEX]]
 ; TF-SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP7]]
 ; TF-SCALABLE-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; TF-SCALABLE-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; TF-SCALABLE-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
 ; TF-SCALABLE:       [[MIDDLE_BLOCK]]:
 ; TF-SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; TF-SCALABLE:       [[FOR_END]]:
@@ -608,7 +596,7 @@ define void @uniform_store_of_loop_varying(ptr noalias nocapture %a, ptr noalias
 ; SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP8]]
 ; SCALABLE-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 2 x i64> [[VEC_IND]], [[DOTSPLAT]]
 ; SCALABLE-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; SCALABLE-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; SCALABLE-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
 ; SCALABLE:       [[MIDDLE_BLOCK]]:
 ; SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; SCALABLE:       [[FOR_END]]:
@@ -679,7 +667,7 @@ define void @uniform_store_of_loop_varying(ptr noalias nocapture %a, ptr noalias
 ; TF-SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP13]]
 ; TF-SCALABLE-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT2]]
 ; TF-SCALABLE-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; TF-SCALABLE-NEXT:    br i1 [[TMP12]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; TF-SCALABLE-NEXT:    br i1 [[TMP12]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
 ; TF-SCALABLE:       [[MIDDLE_BLOCK]]:
 ; TF-SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; TF-SCALABLE:       [[FOR_END]]:
@@ -731,7 +719,7 @@ define void @conditional_uniform_store(ptr noalias nocapture %a, ptr noalias noc
 ; SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP14]]
 ; SCALABLE-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
 ; SCALABLE-NEXT:    [[TMP11:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; SCALABLE-NEXT:    br i1 [[TMP11]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
+; SCALABLE-NEXT:    br i1 [[TMP11]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
 ; SCALABLE:       [[MIDDLE_BLOCK]]:
 ; SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; SCALABLE:       [[FOR_END]]:
@@ -812,7 +800,7 @@ define void @conditional_uniform_store(ptr noalias nocapture %a, ptr noalias noc
 ; TF-SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP11]]
 ; TF-SCALABLE-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
 ; TF-SCALABLE-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; TF-SCALABLE-NEXT:    br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
+; TF-SCALABLE-NEXT:    br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
 ; TF-SCALABLE:       [[MIDDLE_BLOCK]]:
 ; TF-SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; TF-SCALABLE:       [[FOR_END]]:
@@ -860,7 +848,7 @@ define void @uniform_store_unaligned(ptr noalias nocapture %a, ptr noalias nocap
 ; SCALABLE-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP10]], [[INDEX]]
 ; SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP10]]
 ; SCALABLE-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; SCALABLE-NEXT:    br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
+; SCALABLE-NEXT:    br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
 ; SCALABLE:       [[MIDDLE_BLOCK]]:
 ; SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; SCALABLE:       [[FOR_END]]:
@@ -918,7 +906,7 @@ define void @uniform_store_unaligned(ptr noalias nocapture %a, ptr noalias nocap
 ; TF-SCALABLE-NEXT:    [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP7]], [[INDEX]]
 ; TF-SCALABLE-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP7]]
 ; TF-SCALABLE-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
-; TF-SCALABLE-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
+; TF-SCALABLE-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
 ; TF-SCALABLE:       [[MIDDLE_BLOCK]]:
 ; TF-SCALABLE-NEXT:    br label %[[FOR_END:.*]]
 ; TF-SCALABLE:       [[FOR_END]]:
diff --git a/llvm/test/Transforms/LoopVectorize/X86/small-size.ll b/llvm/test/Transforms/LoopVectorize/X86/small-size.ll
index e99ffda9e4043..93cf59c019d5f 100644
--- a/llvm/test/Transforms/LoopVectorize/X86/small-size.ll
+++ b/llvm/test/Transforms/LoopVectorize/X86/small-size.ll
@@ -524,22 +524,78 @@ define void @example23c(ptr noalias nocapture %src, ptr noalias nocapture %dst)
 ; induction is used outside the loop.
 define i64 @example23d(ptr noalias nocapture %src, ptr noalias nocapture %dst) optsize {
 ; CHECK-LABEL: @example23d(
+; CHECK-NEXT:    br label [[VECTOR_PH:%.*]]
+; CHECK:       vector.ph:
 ; CHECK-NEXT:    br label [[TMP1:%.*]]
-; CHECK:       1:
-; CHECK-NEXT:    [[DOT04:%.*]] = phi ptr [ [[SRC:%.*]], [[TMP0:%.*]] ], [ [[TMP2:%.*]], [[TMP1]] ]
-; CHECK-NEXT:    [[DOT013:%.*]] = phi ptr [ [[DST:%.*]], [[TMP0]] ], [ [[TMP6:%.*]], [[TMP1]] ]
-; CHECK-NEXT:    [[I_02:%.*]] = phi i64 [ 0, [[TMP0]] ], [ [[TMP7:%.*]], [[TMP1]] ]
-; CHECK-NEXT:    [[TMP2]] = getelementptr inbounds nuw i8, ptr [[DOT04]], i64 2
+; CHECK:       vector.body:
+; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_STORE_CONTINUE14:%.*]] ]
+; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_STORE_CONTINUE14]] ]
+; CHECK-NEXT:    [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 1
+; CHECK-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[SRC:%.*]], i64 [[OFFSET_IDX]]
+; CHECK-NEXT:    [[NEXT_GEP1:%.*]] = getelementptr i8, ptr [[TMP9]], i64 2
+; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[SRC]], i64 [[OFFSET_IDX]]
+; CHECK-NEXT:    [[NEXT_GEP2:%.*]] = getelementptr i8, ptr [[TMP2]], i64 4
+; CHECK-NEXT:    [[TMP10:%.*]] = getelementptr i8, ptr [[SRC]], i64 [[OFFSET_IDX]]
+; CHECK-NEXT:    [[NEXT_GEP3:%.*]] = getelementptr i8, ptr [[TMP10]], i64 6
+; CHECK-NEXT:    [[OFFSET_IDX4:%.*]] = shl i64 [[INDEX]], 2
+; CHECK-NEXT:    [[TMP11:%.*]] = getelementptr i8, ptr [[DST:%.*]], i64 [[OFFSET_IDX4]]
+; CHECK-NEXT:    [[NEXT_GEP6:%.*]] = getelementptr i8, ptr [[TMP11]], i64 4
+; CHECK-NEXT:    [[TMP32:%.*]] = getelementptr i8, ptr [[DST]], i64 [[OFFSET_IDX4]]
+; CHECK-NEXT:    [[NEXT_GEP7:%.*]] = getelementptr i8, ptr [[TMP32]], i64 8
+; CHECK-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[DST]], i64 [[OFFSET_IDX4]]
+; CHECK-NEXT:    [[NEXT_GEP8:%.*]] = getelementptr i8, ptr [[TMP6]], i64 12
+; CHECK-NEXT:    [[TMP33:%.*]] = icmp ult <4 x i64> [[VEC_IND]], splat (i64 257)
+; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <4 x i1> [[TMP33]], i64 0
+; CHECK-NEXT:    br i1 [[TMP8]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
+; CHECK:       pred.store.if:
+; CHECK-NEXT:    [[DOT013:%.*]] = getelementptr i8, ptr [[DST]], i64 [[OFFSET_IDX4]]
+; CHECK-NEXT:    [[DOT04:%.*]] = getelementptr i8, ptr [[SRC]], i64 [[OFFSET_IDX]]
 ; CHECK-NEXT:    [[TMP3:%.*]] = load i16, ptr [[DOT04]], align 2
 ; CHECK-NEXT:    [[TMP4:%.*]] = zext i16 [[TMP3]] to i32
 ; CHECK-NEXT:    [[TMP5:%.*]] = shl nuw nsw i32 [[TMP4]], 7
-; CHECK-NEXT:    [[TMP6]] = getelementptr inbounds nuw i8, ptr [[DOT013]], i64 4
 ; CHECK-NEXT:    store i32 [[TMP5]], ptr [[DOT013]], align 4
-; CHECK-NEXT:    [[TMP7]] = add nuw nsw i64 [[I_02]], 1
-; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[TMP7]], 257
-; CHECK-NEXT:    br i1 [[EXITCOND]], label [[TMP8:%.*]], label [[TMP1]]
-; CHECK:       8:
-; CHECK-NEXT:    ret i64 [[TMP7]]
+; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE]]
+; CHECK:       pred.store.continue:
+; CHECK-NEXT:    [[TMP12:%.*]] = extractelement <4 x i1> [[TMP33]], i64 1
+; CHECK-NEXT:    br i1 [[TMP12]], label [[PRED_STORE_IF9:%.*]], label [[PRED_STORE_CONTINUE10:%.*]]
+; CHECK:       pred.store.if9:
+; CHECK-NEXT:    [[TMP13:%.*]] = load i16, ptr [[NEXT_GEP1]], align 2
+; CHECK-NEXT:    [[TMP14:%.*]] = zext i16 [[TMP13]] to i32
+; CHECK-NEXT:    [[TMP15:%.*]] = shl nuw nsw i32 [[TMP14]], 7
+; CHECK-NEXT:    store i32 [[TMP15]], ptr [[NEXT_GEP6]], align 4
+; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE10]]
+; CHECK:       pred.store.continue10:
+; CHECK-NEXT:    [[TMP16:%.*]] = extractelement <4 x i1> [[TMP33]], i64 2
+; CHECK-NEXT:    br i1 [[TMP16]], label [[PRED_STORE_IF11:%.*]], label [[PRED_STORE_CONTINUE12:%.*]]
+; CHECK:       pred.store.if11:
+; CHECK-NEXT:    [[TMP17:%.*]] = load i16, ptr [[NEXT_GEP2]], align 2
+; CHECK-NEXT:    [[TMP18:%.*]] = zext i16 [[TMP17]] to i32
+; CHECK-NEXT:    [[TMP19:%.*]] = shl nuw nsw i32 [[TMP18]], 7
+; CHECK-NEXT:    store i32 [[TMP19]], ptr [[NEXT_GEP7]], align 4
+; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE12]]
+; CHECK:       pred.store.continue12:
+; CHECK-NEXT:    [[TMP20:%.*]] = extractelement <4 x i1> [[TMP33]], i64 3
+; CHECK-NEXT:    br i1 [[TMP20]], label [[PRED_STORE_IF13:%.*]], label [[PRED_STORE_CONTINUE14]]
+; CHECK:       pred.store.if13:
+; CHECK-NEXT:    [[TMP21:%.*]] = load i16, ptr [[NEXT_GEP3]], align 2
+; CHECK-NEXT:    [[TMP22:%.*]] = zext i16 [[TMP21]] to i32
+; CHECK-NEXT:    [[TMP23:%.*]] = shl nuw nsw i32 [[TMP22]], 7
+; CHECK-NEXT:    store i32 [[TMP23]], ptr [[NEXT_GEP8]], align 4
+; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE14]]
+; CHECK:       pred.store.continue14:
+; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
+; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <4 x i64> [[VEC_IND]], splat (i64 4)
+; CHECK-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], 260
+; CHECK-NEXT:    br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[TMP1]], !llvm.loop [[LOOP8:![0-9]+]]
+; CHECK:       middle.block:
+; CHECK-NEXT:    br label [[TMP30:%.*]]
+; CHECK:       25:
+; CHECK-NEXT:    [[TMP25:%.*]] = xor <4 x i1> [[TMP33]], splat (i1 true)
+; CHECK-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP25]], i1 false)
+; CHECK-NEXT:    [[TMP27:%.*]] = add i64 [[TMP26]], -1
+; CHECK-NEXT:    [[TMP28:%.*]] = extractelement <4 x i64> [[VEC_IND]], i64 [[TMP27]]
+; CHECK-NEXT:    [[TMP29:%.*]] = add nsw i64 [[TMP28]], 1
+; CHECK-NEXT:    ret i64 [[TMP29]]
 ;
   br label %1
 
diff --git a/llvm/test/Transforms/LoopVectorize/first-order-recurrence-tail-folding.ll b/llvm/test/Transforms/LoopVectorize/first-order-recurrence-tail-folding.ll
index e97d6e66d9d7a..28b46726f80dc 100644
--- a/llvm/test/Transforms/LoopVectorize/first-order-recurrence-tail-folding.ll
+++ b/llvm/test/Transforms/LoopVectorize/first-order-recurrence-tail-folding.ll
@@ -6,59 +6,276 @@
 define i32 @FOR_used_outside(ptr noalias %A, ptr noalias %B, i64 %n) {
 ; VF2IC1-LABEL: define i32 @FOR_used_outside(
 ; VF2IC1-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF2IC1-NEXT:  [[ENTRY:.*]]:
-; VF2IC1-NEXT:    br label %[[LOOP:.*]]
-; VF2IC1:       [[LOOP]]:
-; VF2IC1-NEXT:    [[TMP1:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF2IC1-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP10:%.*]], %[[LOOP]] ]
+; VF2IC1-NEXT:  [[ENTRY:.*:]]
+; VF2IC1-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF2IC1:       [[VECTOR_PH]]:
+; VF2IC1-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 1
+; VF2IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 2
+; VF2IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF2IC1-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF2IC1-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
+; VF2IC1-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer
+; VF2IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF2IC1:       [[VECTOR_BODY]]:
+; VF2IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE4:.*]] ]
+; VF2IC1-NEXT:    [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[PRED_STORE_CONTINUE4]] ]
+; VF2IC1-NEXT:    [[VECTOR_RECUR:%.*]] = phi <2 x i32> [ <i32 poison, i32 33>, %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[PRED_STORE_CONTINUE4]] ]
+; VF2IC1-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 0
+; VF2IC1-NEXT:    [[TMP4:%.*]] = add i64 [[INDEX]], 1
+; VF2IC1-NEXT:    [[TMP2:%.*]] = icmp ule <2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
+; VF2IC1-NEXT:    [[TMP3:%.*]] = extractelement <2 x i1> [[TMP2]], i32 0
+; VF2IC1-NEXT:    br i1 [[TMP3]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF2IC1:       [[PRED_LOAD_IF]]:
 ; VF2IC1-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP1]]
-; VF2IC1-NEXT:    [[TMP10]] = load i32, ptr [[TMP9]], align 4
-; VF2IC1-NEXT:    [[TMP23:%.*]] = add nsw i32 [[FOR]], [[TMP10]]
-; VF2IC1-NEXT:    [[TMP20:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC1-NEXT:    [[TMP10:%.*]] = load i32, ptr [[TMP9]], align 4
+; VF2IC1-NEXT:    [[TMP6:%.*]] = insertelement <2 x i32> poison, i32 [[TMP10]], i32 0
+; VF2IC1-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF2IC1:       [[PRED_LOAD_CONTINUE]]:
+; VF2IC1-NEXT:    [[TMP7:%.*]] = phi <2 x i32> [ poison, %[[VECTOR_BODY]] ], [ [[TMP6]], %[[PRED_LOAD_IF]] ]
+; VF2IC1-NEXT:    [[TMP8:%.*]] = extractelement <2 x i1> [[TMP2]], i32 1
+; VF2IC1-NEXT:    br i1 [[TMP8]], label %[[PRED_LOAD_IF1:.*]], label %[[PRED_LOAD_CONTINUE2:.*]]
+; VF2IC1:       [[PRED_LOAD_IF1]]:
+; VF2IC1-NEXT:    [[TMP33:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP4]]
+; VF2IC1-NEXT:    [[TMP34:%.*]] = load i32, ptr [[TMP33]], align 4
+; VF2IC1-NEXT:    [[TMP11:%.*]] = insertelement <2 x i32> [[TMP7]], i32 [[TMP34]], i32 1
+; VF2IC1-NEXT:    br label %[[PRED_LOAD_CONTINUE2]]
+; VF2IC1:       [[PRED_LOAD_CONTINUE2]]:
+; VF2IC1-NEXT:    [[TMP12]] = phi <2 x i32> [ [[TMP7]], %[[PRED_LOAD_CONTINUE]] ], [ [[TMP11]], %[[PRED_LOAD_IF1]] ]
+; VF2IC1-NEXT:    [[TMP13:%.*]] = shufflevector <2 x i32> [[VECTOR_RECUR]], <2 x i32> [[TMP12]], <2 x i32> <i32 1, i32 2>
+; VF2IC1-NEXT:    [[TMP14:%.*]] = extractelement <2 x i1> [[TMP2]], i32 0
+; VF2IC1-NEXT:    br i1 [[TMP14]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF2IC1:       [[PRED_STORE_IF]]:
+; VF2IC1-NEXT:    [[TMP15:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC1-NEXT:    [[TMP16:%.*]] = extractelement <2 x i32> [[TMP13]], i32 0
+; VF2IC1-NEXT:    [[TMP17:%.*]] = extractelement <2 x i32> [[TMP12]], i32 0
+; VF2IC1-NEXT:    [[TMP18:%.*]] = add nsw i32 [[TMP16]], [[TMP17]]
+; VF2IC1-NEXT:    store i32 [[TMP18]], ptr [[TMP15]], align 4
+; VF2IC1-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF2IC1:       [[PRED_STORE_CONTINUE]]:
+; VF2IC1-NEXT:    [[TMP19:%.*]] = extractelement <2 x i1> [[TMP2]], i32 1
+; VF2IC1-NEXT:    br i1 [[TMP19]], label %[[PRED_STORE_IF3:.*]], label %[[PRED_STORE_CONTINUE4]]
+; VF2IC1:       [[PRED_STORE_IF3]]:
+; VF2IC1-NEXT:    [[TMP20:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP4]]
+; VF2IC1-NEXT:    [[TMP21:%.*]] = extractelement <2 x i32> [[TMP13]], i32 1
+; VF2IC1-NEXT:    [[TMP22:%.*]] = extractelement <2 x i32> [[TMP12]], i32 1
+; VF2IC1-NEXT:    [[TMP23:%.*]] = add nsw i32 [[TMP21]], [[TMP22]]
 ; VF2IC1-NEXT:    store i32 [[TMP23]], ptr [[TMP20]], align 4
-; VF2IC1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP1]], 1
-; VF2IC1-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF2IC1-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF2IC1-NEXT:    br label %[[PRED_STORE_CONTINUE4]]
+; VF2IC1:       [[PRED_STORE_CONTINUE4]]:
+; VF2IC1-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 2
+; VF2IC1-NEXT:    [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 2)
+; VF2IC1-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF2IC1-NEXT:    br i1 [[TMP24]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; VF2IC1:       [[MIDDLE_BLOCK]]:
+; VF2IC1-NEXT:    [[TMP25:%.*]] = xor <2 x i1> [[TMP2]], splat (i1 true)
+; VF2IC1-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP25]], i1 false)
+; VF2IC1-NEXT:    [[TMP27:%.*]] = sub i64 [[TMP26]], 1
+; VF2IC1-NEXT:    [[TMP28:%.*]] = sub i64 [[TMP27]], 1
+; VF2IC1-NEXT:    [[TMP29:%.*]] = extractelement <2 x i32> [[TMP12]], i64 [[TMP28]]
+; VF2IC1-NEXT:    [[TMP30:%.*]] = extractelement <2 x i32> [[VECTOR_RECUR]], i32 1
+; VF2IC1-NEXT:    [[TMP31:%.*]] = icmp eq i64 [[TMP27]], 0
+; VF2IC1-NEXT:    [[TMP32:%.*]] = select i1 [[TMP31]], i32 [[TMP30]], i32 [[TMP29]]
+; VF2IC1-NEXT:    br label %[[FOR_END:.*]]
 ; VF2IC1:       [[FOR_END]]:
-; VF2IC1-NEXT:    [[TMP32:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
 ; VF2IC1-NEXT:    ret i32 [[TMP32]]
 ;
 ; VF2IC2-LABEL: define i32 @FOR_used_outside(
 ; VF2IC2-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF2IC2-NEXT:  [[ENTRY:.*]]:
-; VF2IC2-NEXT:    br label %[[LOOP:.*]]
-; VF2IC2:       [[LOOP]]:
-; VF2IC2-NEXT:    [[TMP3:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF2IC2-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP23:%.*]], %[[LOOP]] ]
+; VF2IC2-NEXT:  [[ENTRY:.*:]]
+; VF2IC2-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF2IC2:       [[VECTOR_PH]]:
+; VF2IC2-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 3
+; VF2IC2-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 4
+; VF2IC2-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF2IC2-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF2IC2-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
+; VF2IC2-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer
+; VF2IC2-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF2IC2:       [[VECTOR_BODY]]:
+; VF2IC2-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE12:.*]] ]
+; VF2IC2-NEXT:    [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[PRED_STORE_CONTINUE12]] ]
+; VF2IC2-NEXT:    [[VECTOR_RECUR:%.*]] = phi <2 x i32> [ <i32 poison, i32 33>, %[[VECTOR_PH]] ], [ [[TMP25:%.*]], %[[PRED_STORE_CONTINUE12]] ]
+; VF2IC2-NEXT:    [[STEP_ADD:%.*]] = add <2 x i64> [[VEC_IND]], splat (i64 2)
+; VF2IC2-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 0
+; VF2IC2-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
+; VF2IC2-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
+; VF2IC2-NEXT:    [[TMP7:%.*]] = add i64 [[INDEX]], 3
+; VF2IC2-NEXT:    [[TMP4:%.*]] = icmp ule <2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
+; VF2IC2-NEXT:    [[TMP5:%.*]] = icmp ule <2 x i64> [[STEP_ADD]], [[BROADCAST_SPLAT]]
+; VF2IC2-NEXT:    [[TMP6:%.*]] = extractelement <2 x i1> [[TMP4]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP6]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF2IC2:       [[PRED_LOAD_IF]]:
 ; VF2IC2-NEXT:    [[TMP22:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP3]]
-; VF2IC2-NEXT:    [[TMP23]] = load i32, ptr [[TMP22]], align 4
-; VF2IC2-NEXT:    [[TMP47:%.*]] = add nsw i32 [[FOR]], [[TMP23]]
-; VF2IC2-NEXT:    [[TMP44:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF2IC2-NEXT:    [[TMP23:%.*]] = load i32, ptr [[TMP22]], align 4
+; VF2IC2-NEXT:    [[TMP9:%.*]] = insertelement <2 x i32> poison, i32 [[TMP23]], i32 0
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE]]:
+; VF2IC2-NEXT:    [[TMP10:%.*]] = phi <2 x i32> [ poison, %[[VECTOR_BODY]] ], [ [[TMP9]], %[[PRED_LOAD_IF]] ]
+; VF2IC2-NEXT:    [[TMP11:%.*]] = extractelement <2 x i1> [[TMP4]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP11]], label %[[PRED_LOAD_IF1:.*]], label %[[PRED_LOAD_CONTINUE2:.*]]
+; VF2IC2:       [[PRED_LOAD_IF1]]:
+; VF2IC2-NEXT:    [[TMP12:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP1]]
+; VF2IC2-NEXT:    [[TMP13:%.*]] = load i32, ptr [[TMP12]], align 4
+; VF2IC2-NEXT:    [[TMP14:%.*]] = insertelement <2 x i32> [[TMP10]], i32 [[TMP13]], i32 1
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE2]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE2]]:
+; VF2IC2-NEXT:    [[TMP15:%.*]] = phi <2 x i32> [ [[TMP10]], %[[PRED_LOAD_CONTINUE]] ], [ [[TMP14]], %[[PRED_LOAD_IF1]] ]
+; VF2IC2-NEXT:    [[TMP16:%.*]] = extractelement <2 x i1> [[TMP5]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP16]], label %[[PRED_LOAD_IF3:.*]], label %[[PRED_LOAD_CONTINUE4:.*]]
+; VF2IC2:       [[PRED_LOAD_IF3]]:
+; VF2IC2-NEXT:    [[TMP17:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP2]]
+; VF2IC2-NEXT:    [[TMP18:%.*]] = load i32, ptr [[TMP17]], align 4
+; VF2IC2-NEXT:    [[TMP19:%.*]] = insertelement <2 x i32> poison, i32 [[TMP18]], i32 0
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE4]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE4]]:
+; VF2IC2-NEXT:    [[TMP20:%.*]] = phi <2 x i32> [ poison, %[[PRED_LOAD_CONTINUE2]] ], [ [[TMP19]], %[[PRED_LOAD_IF3]] ]
+; VF2IC2-NEXT:    [[TMP21:%.*]] = extractelement <2 x i1> [[TMP5]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP21]], label %[[PRED_LOAD_IF5:.*]], label %[[PRED_LOAD_CONTINUE6:.*]]
+; VF2IC2:       [[PRED_LOAD_IF5]]:
+; VF2IC2-NEXT:    [[TMP34:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP7]]
+; VF2IC2-NEXT:    [[TMP37:%.*]] = load i32, ptr [[TMP34]], align 4
+; VF2IC2-NEXT:    [[TMP24:%.*]] = insertelement <2 x i32> [[TMP20]], i32 [[TMP37]], i32 1
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE6]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE6]]:
+; VF2IC2-NEXT:    [[TMP25]] = phi <2 x i32> [ [[TMP20]], %[[PRED_LOAD_CONTINUE4]] ], [ [[TMP24]], %[[PRED_LOAD_IF5]] ]
+; VF2IC2-NEXT:    [[TMP26:%.*]] = shufflevector <2 x i32> [[VECTOR_RECUR]], <2 x i32> [[TMP15]], <2 x i32> <i32 1, i32 2>
+; VF2IC2-NEXT:    [[TMP27:%.*]] = shufflevector <2 x i32> [[TMP15]], <2 x i32> [[TMP25]], <2 x i32> <i32 1, i32 2>
+; VF2IC2-NEXT:    [[TMP28:%.*]] = extractelement <2 x i1> [[TMP4]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP28]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF2IC2:       [[PRED_STORE_IF]]:
+; VF2IC2-NEXT:    [[TMP29:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF2IC2-NEXT:    [[TMP30:%.*]] = extractelement <2 x i32> [[TMP26]], i32 0
+; VF2IC2-NEXT:    [[TMP31:%.*]] = extractelement <2 x i32> [[TMP15]], i32 0
+; VF2IC2-NEXT:    [[TMP32:%.*]] = add nsw i32 [[TMP30]], [[TMP31]]
+; VF2IC2-NEXT:    store i32 [[TMP32]], ptr [[TMP29]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF2IC2:       [[PRED_STORE_CONTINUE]]:
+; VF2IC2-NEXT:    [[TMP33:%.*]] = extractelement <2 x i1> [[TMP4]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP33]], label %[[PRED_STORE_IF7:.*]], label %[[PRED_STORE_CONTINUE8:.*]]
+; VF2IC2:       [[PRED_STORE_IF7]]:
+; VF2IC2-NEXT:    [[TMP44:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC2-NEXT:    [[TMP35:%.*]] = extractelement <2 x i32> [[TMP26]], i32 1
+; VF2IC2-NEXT:    [[TMP36:%.*]] = extractelement <2 x i32> [[TMP15]], i32 1
+; VF2IC2-NEXT:    [[TMP47:%.*]] = add nsw i32 [[TMP35]], [[TMP36]]
 ; VF2IC2-NEXT:    store i32 [[TMP47]], ptr [[TMP44]], align 4
-; VF2IC2-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP3]], 1
-; VF2IC2-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF2IC2-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE8]]
+; VF2IC2:       [[PRED_STORE_CONTINUE8]]:
+; VF2IC2-NEXT:    [[TMP38:%.*]] = extractelement <2 x i1> [[TMP5]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP38]], label %[[PRED_STORE_IF9:.*]], label %[[PRED_STORE_CONTINUE10:.*]]
+; VF2IC2:       [[PRED_STORE_IF9]]:
+; VF2IC2-NEXT:    [[TMP39:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP2]]
+; VF2IC2-NEXT:    [[TMP40:%.*]] = extractelement <2 x i32> [[TMP27]], i32 0
+; VF2IC2-NEXT:    [[TMP41:%.*]] = extractelement <2 x i32> [[TMP25]], i32 0
+; VF2IC2-NEXT:    [[TMP42:%.*]] = add nsw i32 [[TMP40]], [[TMP41]]
+; VF2IC2-NEXT:    store i32 [[TMP42]], ptr [[TMP39]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE10]]
+; VF2IC2:       [[PRED_STORE_CONTINUE10]]:
+; VF2IC2-NEXT:    [[TMP43:%.*]] = extractelement <2 x i1> [[TMP5]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP43]], label %[[PRED_STORE_IF11:.*]], label %[[PRED_STORE_CONTINUE12]]
+; VF2IC2:       [[PRED_STORE_IF11]]:
+; VF2IC2-NEXT:    [[TMP67:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP7]]
+; VF2IC2-NEXT:    [[TMP45:%.*]] = extractelement <2 x i32> [[TMP27]], i32 1
+; VF2IC2-NEXT:    [[TMP46:%.*]] = extractelement <2 x i32> [[TMP25]], i32 1
+; VF2IC2-NEXT:    [[TMP68:%.*]] = add nsw i32 [[TMP45]], [[TMP46]]
+; VF2IC2-NEXT:    store i32 [[TMP68]], ptr [[TMP67]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE12]]
+; VF2IC2:       [[PRED_STORE_CONTINUE12]]:
+; VF2IC2-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 4
+; VF2IC2-NEXT:    [[VEC_IND_NEXT]] = add <2 x i64> [[STEP_ADD]], splat (i64 2)
+; VF2IC2-NEXT:    [[TMP48:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF2IC2-NEXT:    br i1 [[TMP48]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; VF2IC2:       [[MIDDLE_BLOCK]]:
+; VF2IC2-NEXT:    [[TMP49:%.*]] = xor <2 x i1> [[TMP4]], splat (i1 true)
+; VF2IC2-NEXT:    [[TMP50:%.*]] = xor <2 x i1> [[TMP5]], splat (i1 true)
+; VF2IC2-NEXT:    [[TMP51:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP50]], i1 false)
+; VF2IC2-NEXT:    [[TMP52:%.*]] = add i64 2, [[TMP51]]
+; VF2IC2-NEXT:    [[TMP53:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP49]], i1 false)
+; VF2IC2-NEXT:    [[TMP54:%.*]] = add i64 0, [[TMP53]]
+; VF2IC2-NEXT:    [[TMP55:%.*]] = icmp ne i64 [[TMP53]], 2
+; VF2IC2-NEXT:    [[TMP56:%.*]] = select i1 [[TMP55]], i64 [[TMP54]], i64 [[TMP52]]
+; VF2IC2-NEXT:    [[TMP57:%.*]] = sub i64 [[TMP56]], 1
+; VF2IC2-NEXT:    [[TMP58:%.*]] = sub i64 [[TMP57]], 1
+; VF2IC2-NEXT:    [[TMP59:%.*]] = extractelement <2 x i32> [[TMP15]], i64 [[TMP58]]
+; VF2IC2-NEXT:    [[TMP60:%.*]] = sub i64 [[TMP58]], 2
+; VF2IC2-NEXT:    [[TMP61:%.*]] = extractelement <2 x i32> [[TMP25]], i64 [[TMP60]]
+; VF2IC2-NEXT:    [[TMP62:%.*]] = icmp uge i64 [[TMP58]], 2
+; VF2IC2-NEXT:    [[TMP63:%.*]] = select i1 [[TMP62]], i32 [[TMP61]], i32 [[TMP59]]
+; VF2IC2-NEXT:    [[TMP64:%.*]] = extractelement <2 x i32> [[VECTOR_RECUR]], i32 1
+; VF2IC2-NEXT:    [[TMP65:%.*]] = icmp eq i64 [[TMP57]], 0
+; VF2IC2-NEXT:    [[TMP66:%.*]] = select i1 [[TMP65]], i32 [[TMP64]], i32 [[TMP63]]
+; VF2IC2-NEXT:    br label %[[FOR_END:.*]]
 ; VF2IC2:       [[FOR_END]]:
-; VF2IC2-NEXT:    [[TMP66:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
 ; VF2IC2-NEXT:    ret i32 [[TMP66]]
 ;
 ; VF1IC2-LABEL: define i32 @FOR_used_outside(
 ; VF1IC2-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF1IC2-NEXT:  [[ENTRY:.*]]:
-; VF1IC2-NEXT:    br label %[[LOOP:.*]]
-; VF1IC2:       [[LOOP]]:
-; VF1IC2-NEXT:    [[TMP0:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF1IC2-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP7:%.*]], %[[LOOP]] ]
+; VF1IC2-NEXT:  [[ENTRY:.*:]]
+; VF1IC2-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF1IC2:       [[VECTOR_PH]]:
+; VF1IC2-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 1
+; VF1IC2-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 2
+; VF1IC2-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF1IC2-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF1IC2-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF1IC2:       [[VECTOR_BODY]]:
+; VF1IC2-NEXT:    [[TMP0:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE5:.*]] ]
+; VF1IC2-NEXT:    [[VECTOR_RECUR:%.*]] = phi i32 [ 33, %[[VECTOR_PH]] ], [ [[TMP8:%.*]], %[[PRED_STORE_CONTINUE5]] ]
+; VF1IC2-NEXT:    [[TMP3:%.*]] = add i64 [[TMP0]], 1
+; VF1IC2-NEXT:    [[VEC_IV:%.*]] = add i64 [[TMP0]], 0
+; VF1IC2-NEXT:    [[VEC_IV1:%.*]] = add i64 [[TMP0]], 1
+; VF1IC2-NEXT:    [[TMP1:%.*]] = icmp ule i64 [[VEC_IV]], [[TRIP_COUNT_MINUS_1]]
+; VF1IC2-NEXT:    [[TMP2:%.*]] = icmp ule i64 [[VEC_IV1]], [[TRIP_COUNT_MINUS_1]]
+; VF1IC2-NEXT:    br i1 [[TMP1]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF1IC2:       [[PRED_LOAD_IF]]:
 ; VF1IC2-NEXT:    [[TMP6:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP0]]
-; VF1IC2-NEXT:    [[TMP7]] = load i32, ptr [[TMP6]], align 4
-; VF1IC2-NEXT:    [[TMP12:%.*]] = add nsw i32 [[FOR]], [[TMP7]]
-; VF1IC2-NEXT:    [[TMP11:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP0]]
+; VF1IC2-NEXT:    [[TMP7:%.*]] = load i32, ptr [[TMP6]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF1IC2:       [[PRED_LOAD_CONTINUE]]:
+; VF1IC2-NEXT:    [[TMP5:%.*]] = phi i32 [ poison, %[[VECTOR_BODY]] ], [ [[TMP7]], %[[PRED_LOAD_IF]] ]
+; VF1IC2-NEXT:    br i1 [[TMP2]], label %[[PRED_LOAD_IF2:.*]], label %[[PRED_LOAD_CONTINUE3:.*]]
+; VF1IC2:       [[PRED_LOAD_IF2]]:
+; VF1IC2-NEXT:    [[TMP31:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP3]]
+; VF1IC2-NEXT:    [[TMP32:%.*]] = load i32, ptr [[TMP31]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE3]]
+; VF1IC2:       [[PRED_LOAD_CONTINUE3]]:
+; VF1IC2-NEXT:    [[TMP8]] = phi i32 [ poison, %[[PRED_LOAD_CONTINUE]] ], [ [[TMP32]], %[[PRED_LOAD_IF2]] ]
+; VF1IC2-NEXT:    br i1 [[TMP1]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF1IC2:       [[PRED_STORE_IF]]:
+; VF1IC2-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP0]]
+; VF1IC2-NEXT:    [[TMP10:%.*]] = add nsw i32 [[VECTOR_RECUR]], [[TMP5]]
+; VF1IC2-NEXT:    store i32 [[TMP10]], ptr [[TMP9]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF1IC2:       [[PRED_STORE_CONTINUE]]:
+; VF1IC2-NEXT:    br i1 [[TMP2]], label %[[PRED_STORE_IF4:.*]], label %[[PRED_STORE_CONTINUE5]]
+; VF1IC2:       [[PRED_STORE_IF4]]:
+; VF1IC2-NEXT:    [[TMP11:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF1IC2-NEXT:    [[TMP12:%.*]] = add nsw i32 [[TMP5]], [[TMP8]]
 ; VF1IC2-NEXT:    store i32 [[TMP12]], ptr [[TMP11]], align 4
-; VF1IC2-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP0]], 1
-; VF1IC2-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF1IC2-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF1IC2-NEXT:    br label %[[PRED_STORE_CONTINUE5]]
+; VF1IC2:       [[PRED_STORE_CONTINUE5]]:
+; VF1IC2-NEXT:    [[INDEX_NEXT]] = add i64 [[TMP0]], 2
+; VF1IC2-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF1IC2-NEXT:    br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; VF1IC2:       [[MIDDLE_BLOCK]]:
+; VF1IC2-NEXT:    [[TMP14:%.*]] = xor i1 [[TMP1]], true
+; VF1IC2-NEXT:    [[TMP15:%.*]] = xor i1 [[TMP2]], true
+; VF1IC2-NEXT:    [[TMP16:%.*]] = icmp eq i1 [[TMP15]], false
+; VF1IC2-NEXT:    [[TMP17:%.*]] = zext i1 [[TMP16]] to i64
+; VF1IC2-NEXT:    [[TMP18:%.*]] = add i64 1, [[TMP17]]
+; VF1IC2-NEXT:    [[TMP19:%.*]] = icmp eq i1 [[TMP14]], false
+; VF1IC2-NEXT:    [[TMP20:%.*]] = zext i1 [[TMP19]] to i64
+; VF1IC2-NEXT:    [[TMP21:%.*]] = add i64 0, [[TMP20]]
+; VF1IC2-NEXT:    [[TMP22:%.*]] = icmp ne i64 [[TMP20]], 1
+; VF1IC2-NEXT:    [[TMP23:%.*]] = select i1 [[TMP22]], i64 [[TMP21]], i64 [[TMP18]]
+; VF1IC2-NEXT:    [[TMP24:%.*]] = sub i64 [[TMP23]], 1
+; VF1IC2-NEXT:    [[TMP25:%.*]] = sub i64 [[TMP24]], 1
+; VF1IC2-NEXT:    [[TMP26:%.*]] = sub i64 [[TMP25]], 1
+; VF1IC2-NEXT:    [[TMP27:%.*]] = icmp uge i64 [[TMP25]], 1
+; VF1IC2-NEXT:    [[TMP28:%.*]] = select i1 [[TMP27]], i32 [[TMP8]], i32 [[TMP5]]
+; VF1IC2-NEXT:    [[TMP29:%.*]] = icmp eq i64 [[TMP24]], 0
+; VF1IC2-NEXT:    [[TMP30:%.*]] = select i1 [[TMP29]], i32 [[VECTOR_RECUR]], i32 [[TMP28]]
+; VF1IC2-NEXT:    br label %[[FOR_END:.*]]
 ; VF1IC2:       [[FOR_END]]:
-; VF1IC2-NEXT:    [[TMP30:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
 ; VF1IC2-NEXT:    ret i32 [[TMP30]]
 ;
 entry:
@@ -83,59 +300,265 @@ for.end:
 define i32 @FOR_next_used_outside(ptr noalias %A, ptr noalias %B, i64 %n) {
 ; VF2IC1-LABEL: define i32 @FOR_next_used_outside(
 ; VF2IC1-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF2IC1-NEXT:  [[ENTRY:.*]]:
-; VF2IC1-NEXT:    br label %[[LOOP:.*]]
-; VF2IC1:       [[LOOP]]:
-; VF2IC1-NEXT:    [[TMP1:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF2IC1-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP10:%.*]], %[[LOOP]] ]
+; VF2IC1-NEXT:  [[ENTRY:.*:]]
+; VF2IC1-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF2IC1:       [[VECTOR_PH]]:
+; VF2IC1-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 1
+; VF2IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 2
+; VF2IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF2IC1-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF2IC1-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
+; VF2IC1-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer
+; VF2IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF2IC1:       [[VECTOR_BODY]]:
+; VF2IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE4:.*]] ]
+; VF2IC1-NEXT:    [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[PRED_STORE_CONTINUE4]] ]
+; VF2IC1-NEXT:    [[VECTOR_RECUR:%.*]] = phi <2 x i32> [ <i32 poison, i32 33>, %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[PRED_STORE_CONTINUE4]] ]
+; VF2IC1-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 0
+; VF2IC1-NEXT:    [[TMP4:%.*]] = add i64 [[INDEX]], 1
+; VF2IC1-NEXT:    [[TMP2:%.*]] = icmp ule <2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
+; VF2IC1-NEXT:    [[TMP3:%.*]] = extractelement <2 x i1> [[TMP2]], i32 0
+; VF2IC1-NEXT:    br i1 [[TMP3]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF2IC1:       [[PRED_LOAD_IF]]:
 ; VF2IC1-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP1]]
-; VF2IC1-NEXT:    [[TMP10]] = load i32, ptr [[TMP9]], align 4
-; VF2IC1-NEXT:    [[TMP23:%.*]] = add nsw i32 [[FOR]], [[TMP10]]
-; VF2IC1-NEXT:    [[TMP20:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC1-NEXT:    [[TMP10:%.*]] = load i32, ptr [[TMP9]], align 4
+; VF2IC1-NEXT:    [[TMP6:%.*]] = insertelement <2 x i32> poison, i32 [[TMP10]], i32 0
+; VF2IC1-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF2IC1:       [[PRED_LOAD_CONTINUE]]:
+; VF2IC1-NEXT:    [[TMP7:%.*]] = phi <2 x i32> [ poison, %[[VECTOR_BODY]] ], [ [[TMP6]], %[[PRED_LOAD_IF]] ]
+; VF2IC1-NEXT:    [[TMP8:%.*]] = extractelement <2 x i1> [[TMP2]], i32 1
+; VF2IC1-NEXT:    br i1 [[TMP8]], label %[[PRED_LOAD_IF1:.*]], label %[[PRED_LOAD_CONTINUE2:.*]]
+; VF2IC1:       [[PRED_LOAD_IF1]]:
+; VF2IC1-NEXT:    [[TMP29:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP4]]
+; VF2IC1-NEXT:    [[TMP30:%.*]] = load i32, ptr [[TMP29]], align 4
+; VF2IC1-NEXT:    [[TMP11:%.*]] = insertelement <2 x i32> [[TMP7]], i32 [[TMP30]], i32 1
+; VF2IC1-NEXT:    br label %[[PRED_LOAD_CONTINUE2]]
+; VF2IC1:       [[PRED_LOAD_CONTINUE2]]:
+; VF2IC1-NEXT:    [[TMP12]] = phi <2 x i32> [ [[TMP7]], %[[PRED_LOAD_CONTINUE]] ], [ [[TMP11]], %[[PRED_LOAD_IF1]] ]
+; VF2IC1-NEXT:    [[TMP13:%.*]] = shufflevector <2 x i32> [[VECTOR_RECUR]], <2 x i32> [[TMP12]], <2 x i32> <i32 1, i32 2>
+; VF2IC1-NEXT:    [[TMP14:%.*]] = extractelement <2 x i1> [[TMP2]], i32 0
+; VF2IC1-NEXT:    br i1 [[TMP14]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF2IC1:       [[PRED_STORE_IF]]:
+; VF2IC1-NEXT:    [[TMP15:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC1-NEXT:    [[TMP16:%.*]] = extractelement <2 x i32> [[TMP13]], i32 0
+; VF2IC1-NEXT:    [[TMP17:%.*]] = extractelement <2 x i32> [[TMP12]], i32 0
+; VF2IC1-NEXT:    [[TMP18:%.*]] = add nsw i32 [[TMP16]], [[TMP17]]
+; VF2IC1-NEXT:    store i32 [[TMP18]], ptr [[TMP15]], align 4
+; VF2IC1-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF2IC1:       [[PRED_STORE_CONTINUE]]:
+; VF2IC1-NEXT:    [[TMP19:%.*]] = extractelement <2 x i1> [[TMP2]], i32 1
+; VF2IC1-NEXT:    br i1 [[TMP19]], label %[[PRED_STORE_IF3:.*]], label %[[PRED_STORE_CONTINUE4]]
+; VF2IC1:       [[PRED_STORE_IF3]]:
+; VF2IC1-NEXT:    [[TMP20:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP4]]
+; VF2IC1-NEXT:    [[TMP21:%.*]] = extractelement <2 x i32> [[TMP13]], i32 1
+; VF2IC1-NEXT:    [[TMP22:%.*]] = extractelement <2 x i32> [[TMP12]], i32 1
+; VF2IC1-NEXT:    [[TMP23:%.*]] = add nsw i32 [[TMP21]], [[TMP22]]
 ; VF2IC1-NEXT:    store i32 [[TMP23]], ptr [[TMP20]], align 4
-; VF2IC1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP1]], 1
-; VF2IC1-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF2IC1-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF2IC1-NEXT:    br label %[[PRED_STORE_CONTINUE4]]
+; VF2IC1:       [[PRED_STORE_CONTINUE4]]:
+; VF2IC1-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 2
+; VF2IC1-NEXT:    [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 2)
+; VF2IC1-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF2IC1-NEXT:    br i1 [[TMP24]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; VF2IC1:       [[MIDDLE_BLOCK]]:
+; VF2IC1-NEXT:    [[TMP25:%.*]] = xor <2 x i1> [[TMP2]], splat (i1 true)
+; VF2IC1-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP25]], i1 false)
+; VF2IC1-NEXT:    [[TMP27:%.*]] = sub i64 [[TMP26]], 1
+; VF2IC1-NEXT:    [[TMP28:%.*]] = extractelement <2 x i32> [[TMP12]], i64 [[TMP27]]
+; VF2IC1-NEXT:    br label %[[FOR_END:.*]]
 ; VF2IC1:       [[FOR_END]]:
-; VF2IC1-NEXT:    [[TMP28:%.*]] = phi i32 [ [[TMP10]], %[[LOOP]] ]
 ; VF2IC1-NEXT:    ret i32 [[TMP28]]
 ;
 ; VF2IC2-LABEL: define i32 @FOR_next_used_outside(
 ; VF2IC2-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF2IC2-NEXT:  [[ENTRY:.*]]:
-; VF2IC2-NEXT:    br label %[[LOOP:.*]]
-; VF2IC2:       [[LOOP]]:
-; VF2IC2-NEXT:    [[TMP3:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF2IC2-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP23:%.*]], %[[LOOP]] ]
+; VF2IC2-NEXT:  [[ENTRY:.*:]]
+; VF2IC2-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF2IC2:       [[VECTOR_PH]]:
+; VF2IC2-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 3
+; VF2IC2-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 4
+; VF2IC2-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF2IC2-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF2IC2-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
+; VF2IC2-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer
+; VF2IC2-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF2IC2:       [[VECTOR_BODY]]:
+; VF2IC2-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE12:.*]] ]
+; VF2IC2-NEXT:    [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[PRED_STORE_CONTINUE12]] ]
+; VF2IC2-NEXT:    [[VECTOR_RECUR:%.*]] = phi <2 x i32> [ <i32 poison, i32 33>, %[[VECTOR_PH]] ], [ [[TMP25:%.*]], %[[PRED_STORE_CONTINUE12]] ]
+; VF2IC2-NEXT:    [[STEP_ADD:%.*]] = add <2 x i64> [[VEC_IND]], splat (i64 2)
+; VF2IC2-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 0
+; VF2IC2-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
+; VF2IC2-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
+; VF2IC2-NEXT:    [[TMP7:%.*]] = add i64 [[INDEX]], 3
+; VF2IC2-NEXT:    [[TMP4:%.*]] = icmp ule <2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
+; VF2IC2-NEXT:    [[TMP5:%.*]] = icmp ule <2 x i64> [[STEP_ADD]], [[BROADCAST_SPLAT]]
+; VF2IC2-NEXT:    [[TMP6:%.*]] = extractelement <2 x i1> [[TMP4]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP6]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF2IC2:       [[PRED_LOAD_IF]]:
 ; VF2IC2-NEXT:    [[TMP22:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP3]]
-; VF2IC2-NEXT:    [[TMP23]] = load i32, ptr [[TMP22]], align 4
-; VF2IC2-NEXT:    [[TMP47:%.*]] = add nsw i32 [[FOR]], [[TMP23]]
-; VF2IC2-NEXT:    [[TMP44:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF2IC2-NEXT:    [[TMP23:%.*]] = load i32, ptr [[TMP22]], align 4
+; VF2IC2-NEXT:    [[TMP9:%.*]] = insertelement <2 x i32> poison, i32 [[TMP23]], i32 0
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE]]:
+; VF2IC2-NEXT:    [[TMP10:%.*]] = phi <2 x i32> [ poison, %[[VECTOR_BODY]] ], [ [[TMP9]], %[[PRED_LOAD_IF]] ]
+; VF2IC2-NEXT:    [[TMP11:%.*]] = extractelement <2 x i1> [[TMP4]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP11]], label %[[PRED_LOAD_IF1:.*]], label %[[PRED_LOAD_CONTINUE2:.*]]
+; VF2IC2:       [[PRED_LOAD_IF1]]:
+; VF2IC2-NEXT:    [[TMP12:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP1]]
+; VF2IC2-NEXT:    [[TMP13:%.*]] = load i32, ptr [[TMP12]], align 4
+; VF2IC2-NEXT:    [[TMP14:%.*]] = insertelement <2 x i32> [[TMP10]], i32 [[TMP13]], i32 1
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE2]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE2]]:
+; VF2IC2-NEXT:    [[TMP15:%.*]] = phi <2 x i32> [ [[TMP10]], %[[PRED_LOAD_CONTINUE]] ], [ [[TMP14]], %[[PRED_LOAD_IF1]] ]
+; VF2IC2-NEXT:    [[TMP16:%.*]] = extractelement <2 x i1> [[TMP5]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP16]], label %[[PRED_LOAD_IF3:.*]], label %[[PRED_LOAD_CONTINUE4:.*]]
+; VF2IC2:       [[PRED_LOAD_IF3]]:
+; VF2IC2-NEXT:    [[TMP17:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP2]]
+; VF2IC2-NEXT:    [[TMP18:%.*]] = load i32, ptr [[TMP17]], align 4
+; VF2IC2-NEXT:    [[TMP19:%.*]] = insertelement <2 x i32> poison, i32 [[TMP18]], i32 0
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE4]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE4]]:
+; VF2IC2-NEXT:    [[TMP20:%.*]] = phi <2 x i32> [ poison, %[[PRED_LOAD_CONTINUE2]] ], [ [[TMP19]], %[[PRED_LOAD_IF3]] ]
+; VF2IC2-NEXT:    [[TMP21:%.*]] = extractelement <2 x i1> [[TMP5]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP21]], label %[[PRED_LOAD_IF5:.*]], label %[[PRED_LOAD_CONTINUE6:.*]]
+; VF2IC2:       [[PRED_LOAD_IF5]]:
+; VF2IC2-NEXT:    [[TMP34:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP7]]
+; VF2IC2-NEXT:    [[TMP37:%.*]] = load i32, ptr [[TMP34]], align 4
+; VF2IC2-NEXT:    [[TMP24:%.*]] = insertelement <2 x i32> [[TMP20]], i32 [[TMP37]], i32 1
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE6]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE6]]:
+; VF2IC2-NEXT:    [[TMP25]] = phi <2 x i32> [ [[TMP20]], %[[PRED_LOAD_CONTINUE4]] ], [ [[TMP24]], %[[PRED_LOAD_IF5]] ]
+; VF2IC2-NEXT:    [[TMP26:%.*]] = shufflevector <2 x i32> [[VECTOR_RECUR]], <2 x i32> [[TMP15]], <2 x i32> <i32 1, i32 2>
+; VF2IC2-NEXT:    [[TMP27:%.*]] = shufflevector <2 x i32> [[TMP15]], <2 x i32> [[TMP25]], <2 x i32> <i32 1, i32 2>
+; VF2IC2-NEXT:    [[TMP28:%.*]] = extractelement <2 x i1> [[TMP4]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP28]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF2IC2:       [[PRED_STORE_IF]]:
+; VF2IC2-NEXT:    [[TMP29:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF2IC2-NEXT:    [[TMP30:%.*]] = extractelement <2 x i32> [[TMP26]], i32 0
+; VF2IC2-NEXT:    [[TMP31:%.*]] = extractelement <2 x i32> [[TMP15]], i32 0
+; VF2IC2-NEXT:    [[TMP32:%.*]] = add nsw i32 [[TMP30]], [[TMP31]]
+; VF2IC2-NEXT:    store i32 [[TMP32]], ptr [[TMP29]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF2IC2:       [[PRED_STORE_CONTINUE]]:
+; VF2IC2-NEXT:    [[TMP33:%.*]] = extractelement <2 x i1> [[TMP4]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP33]], label %[[PRED_STORE_IF7:.*]], label %[[PRED_STORE_CONTINUE8:.*]]
+; VF2IC2:       [[PRED_STORE_IF7]]:
+; VF2IC2-NEXT:    [[TMP44:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC2-NEXT:    [[TMP35:%.*]] = extractelement <2 x i32> [[TMP26]], i32 1
+; VF2IC2-NEXT:    [[TMP36:%.*]] = extractelement <2 x i32> [[TMP15]], i32 1
+; VF2IC2-NEXT:    [[TMP47:%.*]] = add nsw i32 [[TMP35]], [[TMP36]]
 ; VF2IC2-NEXT:    store i32 [[TMP47]], ptr [[TMP44]], align 4
-; VF2IC2-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP3]], 1
-; VF2IC2-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF2IC2-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE8]]
+; VF2IC2:       [[PRED_STORE_CONTINUE8]]:
+; VF2IC2-NEXT:    [[TMP38:%.*]] = extractelement <2 x i1> [[TMP5]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP38]], label %[[PRED_STORE_IF9:.*]], label %[[PRED_STORE_CONTINUE10:.*]]
+; VF2IC2:       [[PRED_STORE_IF9]]:
+; VF2IC2-NEXT:    [[TMP39:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP2]]
+; VF2IC2-NEXT:    [[TMP40:%.*]] = extractelement <2 x i32> [[TMP27]], i32 0
+; VF2IC2-NEXT:    [[TMP41:%.*]] = extractelement <2 x i32> [[TMP25]], i32 0
+; VF2IC2-NEXT:    [[TMP42:%.*]] = add nsw i32 [[TMP40]], [[TMP41]]
+; VF2IC2-NEXT:    store i32 [[TMP42]], ptr [[TMP39]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE10]]
+; VF2IC2:       [[PRED_STORE_CONTINUE10]]:
+; VF2IC2-NEXT:    [[TMP43:%.*]] = extractelement <2 x i1> [[TMP5]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP43]], label %[[PRED_STORE_IF11:.*]], label %[[PRED_STORE_CONTINUE12]]
+; VF2IC2:       [[PRED_STORE_IF11]]:
+; VF2IC2-NEXT:    [[TMP63:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP7]]
+; VF2IC2-NEXT:    [[TMP45:%.*]] = extractelement <2 x i32> [[TMP27]], i32 1
+; VF2IC2-NEXT:    [[TMP46:%.*]] = extractelement <2 x i32> [[TMP25]], i32 1
+; VF2IC2-NEXT:    [[TMP64:%.*]] = add nsw i32 [[TMP45]], [[TMP46]]
+; VF2IC2-NEXT:    store i32 [[TMP64]], ptr [[TMP63]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE12]]
+; VF2IC2:       [[PRED_STORE_CONTINUE12]]:
+; VF2IC2-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 4
+; VF2IC2-NEXT:    [[VEC_IND_NEXT]] = add <2 x i64> [[STEP_ADD]], splat (i64 2)
+; VF2IC2-NEXT:    [[TMP48:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF2IC2-NEXT:    br i1 [[TMP48]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; VF2IC2:       [[MIDDLE_BLOCK]]:
+; VF2IC2-NEXT:    [[TMP49:%.*]] = xor <2 x i1> [[TMP4]], splat (i1 true)
+; VF2IC2-NEXT:    [[TMP50:%.*]] = xor <2 x i1> [[TMP5]], splat (i1 true)
+; VF2IC2-NEXT:    [[TMP51:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP50]], i1 false)
+; VF2IC2-NEXT:    [[TMP52:%.*]] = add i64 2, [[TMP51]]
+; VF2IC2-NEXT:    [[TMP53:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP49]], i1 false)
+; VF2IC2-NEXT:    [[TMP54:%.*]] = add i64 0, [[TMP53]]
+; VF2IC2-NEXT:    [[TMP55:%.*]] = icmp ne i64 [[TMP53]], 2
+; VF2IC2-NEXT:    [[TMP56:%.*]] = select i1 [[TMP55]], i64 [[TMP54]], i64 [[TMP52]]
+; VF2IC2-NEXT:    [[TMP57:%.*]] = sub i64 [[TMP56]], 1
+; VF2IC2-NEXT:    [[TMP58:%.*]] = extractelement <2 x i32> [[TMP15]], i64 [[TMP57]]
+; VF2IC2-NEXT:    [[TMP59:%.*]] = sub i64 [[TMP57]], 2
+; VF2IC2-NEXT:    [[TMP60:%.*]] = extractelement <2 x i32> [[TMP25]], i64 [[TMP59]]
+; VF2IC2-NEXT:    [[TMP61:%.*]] = icmp uge i64 [[TMP57]], 2
+; VF2IC2-NEXT:    [[TMP62:%.*]] = select i1 [[TMP61]], i32 [[TMP60]], i32 [[TMP58]]
+; VF2IC2-NEXT:    br label %[[FOR_END:.*]]
 ; VF2IC2:       [[FOR_END]]:
-; VF2IC2-NEXT:    [[TMP62:%.*]] = phi i32 [ [[TMP23]], %[[LOOP]] ]
 ; VF2IC2-NEXT:    ret i32 [[TMP62]]
 ;
 ; VF1IC2-LABEL: define i32 @FOR_next_used_outside(
 ; VF1IC2-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF1IC2-NEXT:  [[ENTRY:.*]]:
-; VF1IC2-NEXT:    br label %[[LOOP:.*]]
-; VF1IC2:       [[LOOP]]:
-; VF1IC2-NEXT:    [[TMP0:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF1IC2-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP7:%.*]], %[[LOOP]] ]
+; VF1IC2-NEXT:  [[ENTRY:.*:]]
+; VF1IC2-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF1IC2:       [[VECTOR_PH]]:
+; VF1IC2-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 1
+; VF1IC2-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 2
+; VF1IC2-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF1IC2-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF1IC2-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF1IC2:       [[VECTOR_BODY]]:
+; VF1IC2-NEXT:    [[TMP0:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE5:.*]] ]
+; VF1IC2-NEXT:    [[VECTOR_RECUR:%.*]] = phi i32 [ 33, %[[VECTOR_PH]] ], [ [[TMP8:%.*]], %[[PRED_STORE_CONTINUE5]] ]
+; VF1IC2-NEXT:    [[TMP3:%.*]] = add i64 [[TMP0]], 1
+; VF1IC2-NEXT:    [[VEC_IV:%.*]] = add i64 [[TMP0]], 0
+; VF1IC2-NEXT:    [[VEC_IV1:%.*]] = add i64 [[TMP0]], 1
+; VF1IC2-NEXT:    [[TMP1:%.*]] = icmp ule i64 [[VEC_IV]], [[TRIP_COUNT_MINUS_1]]
+; VF1IC2-NEXT:    [[TMP2:%.*]] = icmp ule i64 [[VEC_IV1]], [[TRIP_COUNT_MINUS_1]]
+; VF1IC2-NEXT:    br i1 [[TMP1]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF1IC2:       [[PRED_LOAD_IF]]:
 ; VF1IC2-NEXT:    [[TMP6:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP0]]
-; VF1IC2-NEXT:    [[TMP7]] = load i32, ptr [[TMP6]], align 4
-; VF1IC2-NEXT:    [[TMP12:%.*]] = add nsw i32 [[FOR]], [[TMP7]]
-; VF1IC2-NEXT:    [[TMP11:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP0]]
+; VF1IC2-NEXT:    [[TMP7:%.*]] = load i32, ptr [[TMP6]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF1IC2:       [[PRED_LOAD_CONTINUE]]:
+; VF1IC2-NEXT:    [[TMP5:%.*]] = phi i32 [ poison, %[[VECTOR_BODY]] ], [ [[TMP7]], %[[PRED_LOAD_IF]] ]
+; VF1IC2-NEXT:    br i1 [[TMP2]], label %[[PRED_LOAD_IF2:.*]], label %[[PRED_LOAD_CONTINUE3:.*]]
+; VF1IC2:       [[PRED_LOAD_IF2]]:
+; VF1IC2-NEXT:    [[TMP28:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP3]]
+; VF1IC2-NEXT:    [[TMP29:%.*]] = load i32, ptr [[TMP28]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE3]]
+; VF1IC2:       [[PRED_LOAD_CONTINUE3]]:
+; VF1IC2-NEXT:    [[TMP8]] = phi i32 [ poison, %[[PRED_LOAD_CONTINUE]] ], [ [[TMP29]], %[[PRED_LOAD_IF2]] ]
+; VF1IC2-NEXT:    br i1 [[TMP1]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF1IC2:       [[PRED_STORE_IF]]:
+; VF1IC2-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP0]]
+; VF1IC2-NEXT:    [[TMP10:%.*]] = add nsw i32 [[VECTOR_RECUR]], [[TMP5]]
+; VF1IC2-NEXT:    store i32 [[TMP10]], ptr [[TMP9]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF1IC2:       [[PRED_STORE_CONTINUE]]:
+; VF1IC2-NEXT:    br i1 [[TMP2]], label %[[PRED_STORE_IF4:.*]], label %[[PRED_STORE_CONTINUE5]]
+; VF1IC2:       [[PRED_STORE_IF4]]:
+; VF1IC2-NEXT:    [[TMP11:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF1IC2-NEXT:    [[TMP12:%.*]] = add nsw i32 [[TMP5]], [[TMP8]]
 ; VF1IC2-NEXT:    store i32 [[TMP12]], ptr [[TMP11]], align 4
-; VF1IC2-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP0]], 1
-; VF1IC2-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF1IC2-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF1IC2-NEXT:    br label %[[PRED_STORE_CONTINUE5]]
+; VF1IC2:       [[PRED_STORE_CONTINUE5]]:
+; VF1IC2-NEXT:    [[INDEX_NEXT]] = add i64 [[TMP0]], 2
+; VF1IC2-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF1IC2-NEXT:    br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; VF1IC2:       [[MIDDLE_BLOCK]]:
+; VF1IC2-NEXT:    [[TMP14:%.*]] = xor i1 [[TMP1]], true
+; VF1IC2-NEXT:    [[TMP15:%.*]] = xor i1 [[TMP2]], true
+; VF1IC2-NEXT:    [[TMP16:%.*]] = icmp eq i1 [[TMP15]], false
+; VF1IC2-NEXT:    [[TMP17:%.*]] = zext i1 [[TMP16]] to i64
+; VF1IC2-NEXT:    [[TMP18:%.*]] = add i64 1, [[TMP17]]
+; VF1IC2-NEXT:    [[TMP19:%.*]] = icmp eq i1 [[TMP14]], false
+; VF1IC2-NEXT:    [[TMP20:%.*]] = zext i1 [[TMP19]] to i64
+; VF1IC2-NEXT:    [[TMP21:%.*]] = add i64 0, [[TMP20]]
+; VF1IC2-NEXT:    [[TMP22:%.*]] = icmp ne i64 [[TMP20]], 1
+; VF1IC2-NEXT:    [[TMP23:%.*]] = select i1 [[TMP22]], i64 [[TMP21]], i64 [[TMP18]]
+; VF1IC2-NEXT:    [[TMP24:%.*]] = sub i64 [[TMP23]], 1
+; VF1IC2-NEXT:    [[TMP25:%.*]] = sub i64 [[TMP24]], 1
+; VF1IC2-NEXT:    [[TMP26:%.*]] = icmp uge i64 [[TMP24]], 1
+; VF1IC2-NEXT:    [[TMP27:%.*]] = select i1 [[TMP26]], i32 [[TMP8]], i32 [[TMP5]]
+; VF1IC2-NEXT:    br label %[[FOR_END:.*]]
 ; VF1IC2:       [[FOR_END]]:
-; VF1IC2-NEXT:    [[TMP27:%.*]] = phi i32 [ [[TMP7]], %[[LOOP]] ]
 ; VF1IC2-NEXT:    ret i32 [[TMP27]]
 ;
 entry:
@@ -160,64 +583,287 @@ for.end:
 define i32 @FOR_and_next_used_outside(ptr noalias %A, ptr noalias %B, i64 %n) {
 ; VF2IC1-LABEL: define i32 @FOR_and_next_used_outside(
 ; VF2IC1-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF2IC1-NEXT:  [[ENTRY:.*]]:
-; VF2IC1-NEXT:    br label %[[LOOP:.*]]
-; VF2IC1:       [[LOOP]]:
-; VF2IC1-NEXT:    [[TMP1:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF2IC1-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP10:%.*]], %[[LOOP]] ]
+; VF2IC1-NEXT:  [[ENTRY:.*:]]
+; VF2IC1-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF2IC1:       [[VECTOR_PH]]:
+; VF2IC1-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 1
+; VF2IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 2
+; VF2IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF2IC1-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF2IC1-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
+; VF2IC1-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer
+; VF2IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF2IC1:       [[VECTOR_BODY]]:
+; VF2IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE4:.*]] ]
+; VF2IC1-NEXT:    [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[PRED_STORE_CONTINUE4]] ]
+; VF2IC1-NEXT:    [[VECTOR_RECUR:%.*]] = phi <2 x i32> [ <i32 poison, i32 33>, %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[PRED_STORE_CONTINUE4]] ]
+; VF2IC1-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 0
+; VF2IC1-NEXT:    [[TMP4:%.*]] = add i64 [[INDEX]], 1
+; VF2IC1-NEXT:    [[TMP2:%.*]] = icmp ule <2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
+; VF2IC1-NEXT:    [[TMP3:%.*]] = extractelement <2 x i1> [[TMP2]], i32 0
+; VF2IC1-NEXT:    br i1 [[TMP3]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF2IC1:       [[PRED_LOAD_IF]]:
 ; VF2IC1-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP1]]
-; VF2IC1-NEXT:    [[TMP10]] = load i32, ptr [[TMP9]], align 4
-; VF2IC1-NEXT:    [[TMP23:%.*]] = add nsw i32 [[FOR]], [[TMP10]]
-; VF2IC1-NEXT:    [[TMP20:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC1-NEXT:    [[TMP10:%.*]] = load i32, ptr [[TMP9]], align 4
+; VF2IC1-NEXT:    [[TMP6:%.*]] = insertelement <2 x i32> poison, i32 [[TMP10]], i32 0
+; VF2IC1-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF2IC1:       [[PRED_LOAD_CONTINUE]]:
+; VF2IC1-NEXT:    [[TMP7:%.*]] = phi <2 x i32> [ poison, %[[VECTOR_BODY]] ], [ [[TMP6]], %[[PRED_LOAD_IF]] ]
+; VF2IC1-NEXT:    [[TMP8:%.*]] = extractelement <2 x i1> [[TMP2]], i32 1
+; VF2IC1-NEXT:    br i1 [[TMP8]], label %[[PRED_LOAD_IF1:.*]], label %[[PRED_LOAD_CONTINUE2:.*]]
+; VF2IC1:       [[PRED_LOAD_IF1]]:
+; VF2IC1-NEXT:    [[TMP34:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP4]]
+; VF2IC1-NEXT:    [[TMP35:%.*]] = load i32, ptr [[TMP34]], align 4
+; VF2IC1-NEXT:    [[TMP11:%.*]] = insertelement <2 x i32> [[TMP7]], i32 [[TMP35]], i32 1
+; VF2IC1-NEXT:    br label %[[PRED_LOAD_CONTINUE2]]
+; VF2IC1:       [[PRED_LOAD_CONTINUE2]]:
+; VF2IC1-NEXT:    [[TMP12]] = phi <2 x i32> [ [[TMP7]], %[[PRED_LOAD_CONTINUE]] ], [ [[TMP11]], %[[PRED_LOAD_IF1]] ]
+; VF2IC1-NEXT:    [[TMP13:%.*]] = shufflevector <2 x i32> [[VECTOR_RECUR]], <2 x i32> [[TMP12]], <2 x i32> <i32 1, i32 2>
+; VF2IC1-NEXT:    [[TMP14:%.*]] = extractelement <2 x i1> [[TMP2]], i32 0
+; VF2IC1-NEXT:    br i1 [[TMP14]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF2IC1:       [[PRED_STORE_IF]]:
+; VF2IC1-NEXT:    [[TMP15:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC1-NEXT:    [[TMP16:%.*]] = extractelement <2 x i32> [[TMP13]], i32 0
+; VF2IC1-NEXT:    [[TMP17:%.*]] = extractelement <2 x i32> [[TMP12]], i32 0
+; VF2IC1-NEXT:    [[TMP18:%.*]] = add nsw i32 [[TMP16]], [[TMP17]]
+; VF2IC1-NEXT:    store i32 [[TMP18]], ptr [[TMP15]], align 4
+; VF2IC1-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF2IC1:       [[PRED_STORE_CONTINUE]]:
+; VF2IC1-NEXT:    [[TMP19:%.*]] = extractelement <2 x i1> [[TMP2]], i32 1
+; VF2IC1-NEXT:    br i1 [[TMP19]], label %[[PRED_STORE_IF3:.*]], label %[[PRED_STORE_CONTINUE4]]
+; VF2IC1:       [[PRED_STORE_IF3]]:
+; VF2IC1-NEXT:    [[TMP20:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP4]]
+; VF2IC1-NEXT:    [[TMP21:%.*]] = extractelement <2 x i32> [[TMP13]], i32 1
+; VF2IC1-NEXT:    [[TMP22:%.*]] = extractelement <2 x i32> [[TMP12]], i32 1
+; VF2IC1-NEXT:    [[TMP23:%.*]] = add nsw i32 [[TMP21]], [[TMP22]]
 ; VF2IC1-NEXT:    store i32 [[TMP23]], ptr [[TMP20]], align 4
-; VF2IC1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP1]], 1
-; VF2IC1-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF2IC1-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF2IC1-NEXT:    br label %[[PRED_STORE_CONTINUE4]]
+; VF2IC1:       [[PRED_STORE_CONTINUE4]]:
+; VF2IC1-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 2
+; VF2IC1-NEXT:    [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 2)
+; VF2IC1-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF2IC1-NEXT:    br i1 [[TMP24]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; VF2IC1:       [[MIDDLE_BLOCK]]:
+; VF2IC1-NEXT:    [[TMP25:%.*]] = xor <2 x i1> [[TMP2]], splat (i1 true)
+; VF2IC1-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP25]], i1 false)
+; VF2IC1-NEXT:    [[TMP27:%.*]] = sub i64 [[TMP26]], 1
+; VF2IC1-NEXT:    [[TMP28:%.*]] = sub i64 [[TMP27]], 1
+; VF2IC1-NEXT:    [[TMP29:%.*]] = extractelement <2 x i32> [[TMP12]], i64 [[TMP28]]
+; VF2IC1-NEXT:    [[TMP30:%.*]] = extractelement <2 x i32> [[VECTOR_RECUR]], i32 1
+; VF2IC1-NEXT:    [[TMP31:%.*]] = icmp eq i64 [[TMP27]], 0
+; VF2IC1-NEXT:    [[TMP32:%.*]] = select i1 [[TMP31]], i32 [[TMP30]], i32 [[TMP29]]
+; VF2IC1-NEXT:    [[TMP33:%.*]] = extractelement <2 x i32> [[TMP12]], i64 [[TMP27]]
+; VF2IC1-NEXT:    br label %[[FOR_END:.*]]
 ; VF2IC1:       [[FOR_END]]:
-; VF2IC1-NEXT:    [[TMP32:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
-; VF2IC1-NEXT:    [[TMP33:%.*]] = phi i32 [ [[TMP10]], %[[LOOP]] ]
 ; VF2IC1-NEXT:    [[RES:%.*]] = add i32 [[TMP32]], [[TMP33]]
 ; VF2IC1-NEXT:    ret i32 [[RES]]
 ;
 ; VF2IC2-LABEL: define i32 @FOR_and_next_used_outside(
 ; VF2IC2-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF2IC2-NEXT:  [[ENTRY:.*]]:
-; VF2IC2-NEXT:    br label %[[LOOP:.*]]
-; VF2IC2:       [[LOOP]]:
-; VF2IC2-NEXT:    [[TMP3:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF2IC2-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP23:%.*]], %[[LOOP]] ]
+; VF2IC2-NEXT:  [[ENTRY:.*:]]
+; VF2IC2-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF2IC2:       [[VECTOR_PH]]:
+; VF2IC2-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 3
+; VF2IC2-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 4
+; VF2IC2-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF2IC2-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF2IC2-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
+; VF2IC2-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer
+; VF2IC2-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF2IC2:       [[VECTOR_BODY]]:
+; VF2IC2-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE12:.*]] ]
+; VF2IC2-NEXT:    [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[PRED_STORE_CONTINUE12]] ]
+; VF2IC2-NEXT:    [[VECTOR_RECUR:%.*]] = phi <2 x i32> [ <i32 poison, i32 33>, %[[VECTOR_PH]] ], [ [[TMP25:%.*]], %[[PRED_STORE_CONTINUE12]] ]
+; VF2IC2-NEXT:    [[STEP_ADD:%.*]] = add <2 x i64> [[VEC_IND]], splat (i64 2)
+; VF2IC2-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 0
+; VF2IC2-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
+; VF2IC2-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
+; VF2IC2-NEXT:    [[TMP7:%.*]] = add i64 [[INDEX]], 3
+; VF2IC2-NEXT:    [[TMP4:%.*]] = icmp ule <2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
+; VF2IC2-NEXT:    [[TMP5:%.*]] = icmp ule <2 x i64> [[STEP_ADD]], [[BROADCAST_SPLAT]]
+; VF2IC2-NEXT:    [[TMP6:%.*]] = extractelement <2 x i1> [[TMP4]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP6]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF2IC2:       [[PRED_LOAD_IF]]:
 ; VF2IC2-NEXT:    [[TMP22:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP3]]
-; VF2IC2-NEXT:    [[TMP23]] = load i32, ptr [[TMP22]], align 4
-; VF2IC2-NEXT:    [[TMP47:%.*]] = add nsw i32 [[FOR]], [[TMP23]]
-; VF2IC2-NEXT:    [[TMP44:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF2IC2-NEXT:    [[TMP23:%.*]] = load i32, ptr [[TMP22]], align 4
+; VF2IC2-NEXT:    [[TMP9:%.*]] = insertelement <2 x i32> poison, i32 [[TMP23]], i32 0
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE]]:
+; VF2IC2-NEXT:    [[TMP10:%.*]] = phi <2 x i32> [ poison, %[[VECTOR_BODY]] ], [ [[TMP9]], %[[PRED_LOAD_IF]] ]
+; VF2IC2-NEXT:    [[TMP11:%.*]] = extractelement <2 x i1> [[TMP4]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP11]], label %[[PRED_LOAD_IF1:.*]], label %[[PRED_LOAD_CONTINUE2:.*]]
+; VF2IC2:       [[PRED_LOAD_IF1]]:
+; VF2IC2-NEXT:    [[TMP12:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP1]]
+; VF2IC2-NEXT:    [[TMP13:%.*]] = load i32, ptr [[TMP12]], align 4
+; VF2IC2-NEXT:    [[TMP14:%.*]] = insertelement <2 x i32> [[TMP10]], i32 [[TMP13]], i32 1
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE2]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE2]]:
+; VF2IC2-NEXT:    [[TMP15:%.*]] = phi <2 x i32> [ [[TMP10]], %[[PRED_LOAD_CONTINUE]] ], [ [[TMP14]], %[[PRED_LOAD_IF1]] ]
+; VF2IC2-NEXT:    [[TMP16:%.*]] = extractelement <2 x i1> [[TMP5]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP16]], label %[[PRED_LOAD_IF3:.*]], label %[[PRED_LOAD_CONTINUE4:.*]]
+; VF2IC2:       [[PRED_LOAD_IF3]]:
+; VF2IC2-NEXT:    [[TMP17:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP2]]
+; VF2IC2-NEXT:    [[TMP18:%.*]] = load i32, ptr [[TMP17]], align 4
+; VF2IC2-NEXT:    [[TMP19:%.*]] = insertelement <2 x i32> poison, i32 [[TMP18]], i32 0
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE4]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE4]]:
+; VF2IC2-NEXT:    [[TMP20:%.*]] = phi <2 x i32> [ poison, %[[PRED_LOAD_CONTINUE2]] ], [ [[TMP19]], %[[PRED_LOAD_IF3]] ]
+; VF2IC2-NEXT:    [[TMP21:%.*]] = extractelement <2 x i1> [[TMP5]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP21]], label %[[PRED_LOAD_IF5:.*]], label %[[PRED_LOAD_CONTINUE6:.*]]
+; VF2IC2:       [[PRED_LOAD_IF5]]:
+; VF2IC2-NEXT:    [[TMP34:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP7]]
+; VF2IC2-NEXT:    [[TMP37:%.*]] = load i32, ptr [[TMP34]], align 4
+; VF2IC2-NEXT:    [[TMP24:%.*]] = insertelement <2 x i32> [[TMP20]], i32 [[TMP37]], i32 1
+; VF2IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE6]]
+; VF2IC2:       [[PRED_LOAD_CONTINUE6]]:
+; VF2IC2-NEXT:    [[TMP25]] = phi <2 x i32> [ [[TMP20]], %[[PRED_LOAD_CONTINUE4]] ], [ [[TMP24]], %[[PRED_LOAD_IF5]] ]
+; VF2IC2-NEXT:    [[TMP26:%.*]] = shufflevector <2 x i32> [[VECTOR_RECUR]], <2 x i32> [[TMP15]], <2 x i32> <i32 1, i32 2>
+; VF2IC2-NEXT:    [[TMP27:%.*]] = shufflevector <2 x i32> [[TMP15]], <2 x i32> [[TMP25]], <2 x i32> <i32 1, i32 2>
+; VF2IC2-NEXT:    [[TMP28:%.*]] = extractelement <2 x i1> [[TMP4]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP28]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF2IC2:       [[PRED_STORE_IF]]:
+; VF2IC2-NEXT:    [[TMP29:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF2IC2-NEXT:    [[TMP30:%.*]] = extractelement <2 x i32> [[TMP26]], i32 0
+; VF2IC2-NEXT:    [[TMP31:%.*]] = extractelement <2 x i32> [[TMP15]], i32 0
+; VF2IC2-NEXT:    [[TMP32:%.*]] = add nsw i32 [[TMP30]], [[TMP31]]
+; VF2IC2-NEXT:    store i32 [[TMP32]], ptr [[TMP29]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF2IC2:       [[PRED_STORE_CONTINUE]]:
+; VF2IC2-NEXT:    [[TMP33:%.*]] = extractelement <2 x i1> [[TMP4]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP33]], label %[[PRED_STORE_IF7:.*]], label %[[PRED_STORE_CONTINUE8:.*]]
+; VF2IC2:       [[PRED_STORE_IF7]]:
+; VF2IC2-NEXT:    [[TMP44:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP1]]
+; VF2IC2-NEXT:    [[TMP35:%.*]] = extractelement <2 x i32> [[TMP26]], i32 1
+; VF2IC2-NEXT:    [[TMP36:%.*]] = extractelement <2 x i32> [[TMP15]], i32 1
+; VF2IC2-NEXT:    [[TMP47:%.*]] = add nsw i32 [[TMP35]], [[TMP36]]
 ; VF2IC2-NEXT:    store i32 [[TMP47]], ptr [[TMP44]], align 4
-; VF2IC2-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP3]], 1
-; VF2IC2-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF2IC2-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE8]]
+; VF2IC2:       [[PRED_STORE_CONTINUE8]]:
+; VF2IC2-NEXT:    [[TMP38:%.*]] = extractelement <2 x i1> [[TMP5]], i32 0
+; VF2IC2-NEXT:    br i1 [[TMP38]], label %[[PRED_STORE_IF9:.*]], label %[[PRED_STORE_CONTINUE10:.*]]
+; VF2IC2:       [[PRED_STORE_IF9]]:
+; VF2IC2-NEXT:    [[TMP39:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP2]]
+; VF2IC2-NEXT:    [[TMP40:%.*]] = extractelement <2 x i32> [[TMP27]], i32 0
+; VF2IC2-NEXT:    [[TMP41:%.*]] = extractelement <2 x i32> [[TMP25]], i32 0
+; VF2IC2-NEXT:    [[TMP42:%.*]] = add nsw i32 [[TMP40]], [[TMP41]]
+; VF2IC2-NEXT:    store i32 [[TMP42]], ptr [[TMP39]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE10]]
+; VF2IC2:       [[PRED_STORE_CONTINUE10]]:
+; VF2IC2-NEXT:    [[TMP43:%.*]] = extractelement <2 x i1> [[TMP5]], i32 1
+; VF2IC2-NEXT:    br i1 [[TMP43]], label %[[PRED_STORE_IF11:.*]], label %[[PRED_STORE_CONTINUE12]]
+; VF2IC2:       [[PRED_STORE_IF11]]:
+; VF2IC2-NEXT:    [[TMP72:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP7]]
+; VF2IC2-NEXT:    [[TMP45:%.*]] = extractelement <2 x i32> [[TMP27]], i32 1
+; VF2IC2-NEXT:    [[TMP46:%.*]] = extractelement <2 x i32> [[TMP25]], i32 1
+; VF2IC2-NEXT:    [[TMP73:%.*]] = add nsw i32 [[TMP45]], [[TMP46]]
+; VF2IC2-NEXT:    store i32 [[TMP73]], ptr [[TMP72]], align 4
+; VF2IC2-NEXT:    br label %[[PRED_STORE_CONTINUE12]]
+; VF2IC2:       [[PRED_STORE_CONTINUE12]]:
+; VF2IC2-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 4
+; VF2IC2-NEXT:    [[VEC_IND_NEXT]] = add <2 x i64> [[STEP_ADD]], splat (i64 2)
+; VF2IC2-NEXT:    [[TMP48:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF2IC2-NEXT:    br i1 [[TMP48]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; VF2IC2:       [[MIDDLE_BLOCK]]:
+; VF2IC2-NEXT:    [[TMP49:%.*]] = xor <2 x i1> [[TMP4]], splat (i1 true)
+; VF2IC2-NEXT:    [[TMP50:%.*]] = xor <2 x i1> [[TMP5]], splat (i1 true)
+; VF2IC2-NEXT:    [[TMP51:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP50]], i1 false)
+; VF2IC2-NEXT:    [[TMP52:%.*]] = add i64 2, [[TMP51]]
+; VF2IC2-NEXT:    [[TMP53:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v2i1(<2 x i1> [[TMP49]], i1 false)
+; VF2IC2-NEXT:    [[TMP54:%.*]] = add i64 0, [[TMP53]]
+; VF2IC2-NEXT:    [[TMP55:%.*]] = icmp ne i64 [[TMP53]], 2
+; VF2IC2-NEXT:    [[TMP56:%.*]] = select i1 [[TMP55]], i64 [[TMP54]], i64 [[TMP52]]
+; VF2IC2-NEXT:    [[TMP57:%.*]] = sub i64 [[TMP56]], 1
+; VF2IC2-NEXT:    [[TMP58:%.*]] = sub i64 [[TMP57]], 1
+; VF2IC2-NEXT:    [[TMP59:%.*]] = extractelement <2 x i32> [[TMP15]], i64 [[TMP58]]
+; VF2IC2-NEXT:    [[TMP60:%.*]] = sub i64 [[TMP58]], 2
+; VF2IC2-NEXT:    [[TMP61:%.*]] = extractelement <2 x i32> [[TMP25]], i64 [[TMP60]]
+; VF2IC2-NEXT:    [[TMP62:%.*]] = icmp uge i64 [[TMP58]], 2
+; VF2IC2-NEXT:    [[TMP63:%.*]] = select i1 [[TMP62]], i32 [[TMP61]], i32 [[TMP59]]
+; VF2IC2-NEXT:    [[TMP64:%.*]] = extractelement <2 x i32> [[VECTOR_RECUR]], i32 1
+; VF2IC2-NEXT:    [[TMP65:%.*]] = icmp eq i64 [[TMP57]], 0
+; VF2IC2-NEXT:    [[TMP66:%.*]] = select i1 [[TMP65]], i32 [[TMP64]], i32 [[TMP63]]
+; VF2IC2-NEXT:    [[TMP67:%.*]] = extractelement <2 x i32> [[TMP15]], i64 [[TMP57]]
+; VF2IC2-NEXT:    [[TMP68:%.*]] = sub i64 [[TMP57]], 2
+; VF2IC2-NEXT:    [[TMP69:%.*]] = extractelement <2 x i32> [[TMP25]], i64 [[TMP68]]
+; VF2IC2-NEXT:    [[TMP70:%.*]] = icmp uge i64 [[TMP57]], 2
+; VF2IC2-NEXT:    [[TMP71:%.*]] = select i1 [[TMP70]], i32 [[TMP69]], i32 [[TMP67]]
+; VF2IC2-NEXT:    br label %[[FOR_END:.*]]
 ; VF2IC2:       [[FOR_END]]:
-; VF2IC2-NEXT:    [[TMP66:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
-; VF2IC2-NEXT:    [[TMP71:%.*]] = phi i32 [ [[TMP23]], %[[LOOP]] ]
 ; VF2IC2-NEXT:    [[RES:%.*]] = add i32 [[TMP66]], [[TMP71]]
 ; VF2IC2-NEXT:    ret i32 [[RES]]
 ;
 ; VF1IC2-LABEL: define i32 @FOR_and_next_used_outside(
 ; VF1IC2-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) {
-; VF1IC2-NEXT:  [[ENTRY:.*]]:
-; VF1IC2-NEXT:    br label %[[LOOP:.*]]
-; VF1IC2:       [[LOOP]]:
-; VF1IC2-NEXT:    [[TMP0:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
-; VF1IC2-NEXT:    [[FOR:%.*]] = phi i32 [ 33, %[[ENTRY]] ], [ [[TMP7:%.*]], %[[LOOP]] ]
+; VF1IC2-NEXT:  [[ENTRY:.*:]]
+; VF1IC2-NEXT:    br label %[[VECTOR_PH:.*]]
+; VF1IC2:       [[VECTOR_PH]]:
+; VF1IC2-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 1
+; VF1IC2-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 2
+; VF1IC2-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; VF1IC2-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; VF1IC2-NEXT:    br label %[[VECTOR_BODY:.*]]
+; VF1IC2:       [[VECTOR_BODY]]:
+; VF1IC2-NEXT:    [[TMP0:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE5:.*]] ]
+; VF1IC2-NEXT:    [[VECTOR_RECUR:%.*]] = phi i32 [ 33, %[[VECTOR_PH]] ], [ [[TMP8:%.*]], %[[PRED_STORE_CONTINUE5]] ]
+; VF1IC2-NEXT:    [[TMP3:%.*]] = add i64 [[TMP0]], 1
+; VF1IC2-NEXT:    [[VEC_IV:%.*]] = add i64 [[TMP0]], 0
+; VF1IC2-NEXT:    [[VEC_IV1:%.*]] = add i64 [[TMP0]], 1
+; VF1IC2-NEXT:    [[TMP1:%.*]] = icmp ule i64 [[VEC_IV]], [[TRIP_COUNT_MINUS_1]]
+; VF1IC2-NEXT:    [[TMP2:%.*]] = icmp ule i64 [[VEC_IV1]], [[TRIP_COUNT_MINUS_1]]
+; VF1IC2-NEXT:    br i1 [[TMP1]], label %[[PRED_LOAD_IF:.*]], label %[[PRED_LOAD_CONTINUE:.*]]
+; VF1IC2:       [[PRED_LOAD_IF]]:
 ; VF1IC2-NEXT:    [[TMP6:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP0]]
-; VF1IC2-NEXT:    [[TMP7]] = load i32, ptr [[TMP6]], align 4
-; VF1IC2-NEXT:    [[TMP12:%.*]] = add nsw i32 [[FOR]], [[TMP7]]
-; VF1IC2-NEXT:    [[TMP11:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP0]]
+; VF1IC2-NEXT:    [[TMP7:%.*]] = load i32, ptr [[TMP6]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE]]
+; VF1IC2:       [[PRED_LOAD_CONTINUE]]:
+; VF1IC2-NEXT:    [[TMP5:%.*]] = phi i32 [ poison, %[[VECTOR_BODY]] ], [ [[TMP7]], %[[PRED_LOAD_IF]] ]
+; VF1IC2-NEXT:    br i1 [[TMP2]], label %[[PRED_LOAD_IF2:.*]], label %[[PRED_LOAD_CONTINUE3:.*]]
+; VF1IC2:       [[PRED_LOAD_IF2]]:
+; VF1IC2-NEXT:    [[TMP34:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP3]]
+; VF1IC2-NEXT:    [[TMP35:%.*]] = load i32, ptr [[TMP34]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_LOAD_CONTINUE3]]
+; VF1IC2:       [[PRED_LOAD_CONTINUE3]]:
+; VF1IC2-NEXT:    [[TMP8]] = phi i32 [ poison, %[[PRED_LOAD_CONTINUE]] ], [ [[TMP35]], %[[PRED_LOAD_IF2]] ]
+; VF1IC2-NEXT:    br i1 [[TMP1]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
+; VF1IC2:       [[PRED_STORE_IF]]:
+; VF1IC2-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP0]]
+; VF1IC2-NEXT:    [[TMP10:%.*]] = add nsw i32 [[VECTOR_RECUR]], [[TMP5]]
+; VF1IC2-NEXT:    store i32 [[TMP10]], ptr [[TMP9]], align 4
+; VF1IC2-NEXT:    br label %[[PRED_STORE_CONTINUE]]
+; VF1IC2:       [[PRED_STORE_CONTINUE]]:
+; VF1IC2-NEXT:    br i1 [[TMP2]], label %[[PRED_STORE_IF4:.*]], label %[[PRED_STORE_CONTINUE5]]
+; VF1IC2:       [[PRED_STORE_IF4]]:
+; VF1IC2-NEXT:    [[TMP11:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP3]]
+; VF1IC2-NEXT:    [[TMP12:%.*]] = add nsw i32 [[TMP5]], [[TMP8]]
 ; VF1IC2-NEXT:    store i32 [[TMP12]], ptr [[TMP11]], align 4
-; VF1IC2-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[TMP0]], 1
-; VF1IC2-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; VF1IC2-NEXT:    br i1 [[EC]], label %[[FOR_END:.*]], label %[[LOOP]]
+; VF1IC2-NEXT:    br label %[[PRED_STORE_CONTINUE5]]
+; VF1IC2:       [[PRED_STORE_CONTINUE5]]:
+; VF1IC2-NEXT:    [[INDEX_NEXT]] = add i64 [[TMP0]], 2
+; VF1IC2-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; VF1IC2-NEXT:    br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; VF1IC2:       [[MIDDLE_BLOCK]]:
+; VF1IC2-NEXT:    [[TMP14:%.*]] = xor i1 [[TMP1]], true
+; VF1IC2-NEXT:    [[TMP15:%.*]] = xor i1 [[TMP2]], true
+; VF1IC2-NEXT:    [[TMP16:%.*]] = icmp eq i1 [[TMP15]], false
+; VF1IC2-NEXT:    [[TMP17:%.*]] = zext i1 [[TMP16]] to i64
+; VF1IC2-NEXT:    [[TMP18:%.*]] = add i64 1, [[TMP17]]
+; VF1IC2-NEXT:    [[TMP19:%.*]] = icmp eq i1 [[TMP14]], false
+; VF1IC2-NEXT:    [[TMP20:%.*]] = zext i1 [[TMP19]] to i64
+; VF1IC2-NEXT:    [[TMP21:%.*]] = add i64 0, [[TMP20]]
+; VF1IC2-NEXT:    [[TMP22:%.*]] = icmp ne i64 [[TMP20]], 1
+; VF1IC2-NEXT:    [[TMP23:%.*]] = select i1 [[TMP22]], i64 [[TMP21]], i64 [[TMP18]]
+; VF1IC2-NEXT:    [[TMP24:%.*]] = sub i64 [[TMP23]], 1
+; VF1IC2-NEXT:    [[TMP25:%.*]] = sub i64 [[TMP24]], 1
+; VF1IC2-NEXT:    [[TMP26:%.*]] = sub i64 [[TMP25]], 1
+; VF1IC2-NEXT:    [[TMP27:%.*]] = icmp uge i64 [[TMP25]], 1
+; VF1IC2-NEXT:    [[TMP28:%.*]] = select i1 [[TMP27]], i32 [[TMP8]], i32 [[TMP5]]
+; VF1IC2-NEXT:    [[TMP29:%.*]] = icmp eq i64 [[TMP24]], 0
+; VF1IC2-NEXT:    [[TMP30:%.*]] = select i1 [[TMP29]], i32 [[VECTOR_RECUR]], i32 [[TMP28]]
+; VF1IC2-NEXT:    [[TMP31:%.*]] = sub i64 [[TMP24]], 1
+; VF1IC2-NEXT:    [[TMP32:%.*]] = icmp uge i64 [[TMP24]], 1
+; VF1IC2-NEXT:    [[TMP33:%.*]] = select i1 [[TMP32]], i32 [[TMP8]], i32 [[TMP5]]
+; VF1IC2-NEXT:    br label %[[FOR_END:.*]]
 ; VF1IC2:       [[FOR_END]]:
-; VF1IC2-NEXT:    [[TMP30:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
-; VF1IC2-NEXT:    [[TMP33:%.*]] = phi i32 [ [[TMP7]], %[[LOOP]] ]
 ; VF1IC2-NEXT:    [[RES:%.*]] = add i32 [[TMP30]], [[TMP33]]
 ; VF1IC2-NEXT:    ret i32 [[RES]]
 ;
diff --git a/llvm/test/Transforms/LoopVectorize/optsize.ll b/llvm/test/Transforms/LoopVectorize/optsize.ll
index f57041257c919..08903351aa2f0 100644
--- a/llvm/test/Transforms/LoopVectorize/optsize.ll
+++ b/llvm/test/Transforms/LoopVectorize/optsize.ll
@@ -476,45 +476,87 @@ define i32 @pr45526() optsize {
 ;
 ; CHECK-LABEL: define i32 @pr45526(
 ; CHECK-SAME: ) #[[ATTR0]] {
-; CHECK-NEXT:  [[ENTRY:.*]]:
-; CHECK-NEXT:    br label %[[LOOP:.*]]
-; CHECK:       [[LOOP]]:
-; CHECK-NEXT:    [[PIV:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[PIVPLUS1:%.*]], %[[LOOP]] ]
-; CHECK-NEXT:    [[FOR:%.*]] = phi i32 [ 5, %[[ENTRY]] ], [ [[PIVPLUS1]], %[[LOOP]] ]
-; CHECK-NEXT:    [[PIVPLUS1]] = add nuw nsw i32 [[PIV]], 1
-; CHECK-NEXT:    [[COND:%.*]] = icmp ult i32 [[PIV]], 510
-; CHECK-NEXT:    br i1 [[COND]], label %[[LOOP]], label %[[EXIT:.*]]
+; CHECK-NEXT:  [[ENTRY:.*:]]
+; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
+; CHECK:       [[VECTOR_PH]]:
+; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
+; CHECK:       [[VECTOR_BODY]]:
+; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP2:%.*]] = phi <4 x i32> [ <i32 poison, i32 poison, i32 poison, i32 5>, %[[VECTOR_PH]] ], [ [[TMP1:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP0:%.*]] = icmp ugt <4 x i32> [[VEC_IND]], splat (i32 510)
+; CHECK-NEXT:    [[TMP1]] = add nuw nsw <4 x i32> [[VEC_IND]], splat (i32 1)
+; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
+; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 4)
+; CHECK-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 512
+; CHECK-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
+; CHECK:       [[MIDDLE_BLOCK]]:
+; CHECK-NEXT:    [[TMP4:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP0]], i1 false)
+; CHECK-NEXT:    [[TMP5:%.*]] = sub i64 [[TMP4]], 1
+; CHECK-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
+; CHECK-NEXT:    [[TMP7:%.*]] = extractelement <4 x i32> [[TMP1]], i64 [[TMP6]]
+; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <4 x i32> [[TMP2]], i32 3
+; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP5]], 0
+; CHECK-NEXT:    [[TMP10:%.*]] = select i1 [[TMP9]], i32 [[TMP8]], i32 [[TMP7]]
+; CHECK-NEXT:    br label %[[EXIT:.*]]
 ; CHECK:       [[EXIT]]:
-; CHECK-NEXT:    [[FOR_LCSSA:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
-; CHECK-NEXT:    ret i32 [[FOR_LCSSA]]
+; CHECK-NEXT:    ret i32 [[TMP10]]
 ;
 ; PGSO-LABEL: define i32 @pr45526(
 ; PGSO-SAME: ) #[[ATTR0]] {
-; PGSO-NEXT:  [[ENTRY:.*]]:
-; PGSO-NEXT:    br label %[[LOOP:.*]]
-; PGSO:       [[LOOP]]:
-; PGSO-NEXT:    [[PIV:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[PIVPLUS1:%.*]], %[[LOOP]] ]
-; PGSO-NEXT:    [[FOR:%.*]] = phi i32 [ 5, %[[ENTRY]] ], [ [[PIVPLUS1]], %[[LOOP]] ]
-; PGSO-NEXT:    [[PIVPLUS1]] = add nuw nsw i32 [[PIV]], 1
-; PGSO-NEXT:    [[COND:%.*]] = icmp ult i32 [[PIV]], 510
-; PGSO-NEXT:    br i1 [[COND]], label %[[LOOP]], label %[[EXIT:.*]]
+; PGSO-NEXT:  [[ENTRY:.*:]]
+; PGSO-NEXT:    br label %[[VECTOR_PH:.*]]
+; PGSO:       [[VECTOR_PH]]:
+; PGSO-NEXT:    br label %[[VECTOR_BODY:.*]]
+; PGSO:       [[VECTOR_BODY]]:
+; PGSO-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; PGSO-NEXT:    [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; PGSO-NEXT:    [[TMP2:%.*]] = phi <4 x i32> [ <i32 poison, i32 poison, i32 poison, i32 5>, %[[VECTOR_PH]] ], [ [[TMP1:%.*]], %[[VECTOR_BODY]] ]
+; PGSO-NEXT:    [[TMP0:%.*]] = icmp ugt <4 x i32> [[VEC_IND]], splat (i32 510)
+; PGSO-NEXT:    [[TMP1]] = add nuw nsw <4 x i32> [[VEC_IND]], splat (i32 1)
+; PGSO-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
+; PGSO-NEXT:    [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 4)
+; PGSO-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 512
+; PGSO-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
+; PGSO:       [[MIDDLE_BLOCK]]:
+; PGSO-NEXT:    [[TMP4:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP0]], i1 false)
+; PGSO-NEXT:    [[TMP5:%.*]] = sub i64 [[TMP4]], 1
+; PGSO-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
+; PGSO-NEXT:    [[TMP7:%.*]] = extractelement <4 x i32> [[TMP1]], i64 [[TMP6]]
+; PGSO-NEXT:    [[TMP8:%.*]] = extractelement <4 x i32> [[TMP2]], i32 3
+; PGSO-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP5]], 0
+; PGSO-NEXT:    [[TMP10:%.*]] = select i1 [[TMP9]], i32 [[TMP8]], i32 [[TMP7]]
+; PGSO-NEXT:    br label %[[EXIT:.*]]
 ; PGSO:       [[EXIT]]:
-; PGSO-NEXT:    [[FOR_LCSSA:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
-; PGSO-NEXT:    ret i32 [[FOR_LCSSA]]
+; PGSO-NEXT:    ret i32 [[TMP10]]
 ;
 ; NPGSO-LABEL: define i32 @pr45526(
 ; NPGSO-SAME: ) #[[ATTR0]] {
-; NPGSO-NEXT:  [[ENTRY:.*]]:
-; NPGSO-NEXT:    br label %[[LOOP:.*]]
-; NPGSO:       [[LOOP]]:
-; NPGSO-NEXT:    [[PIV:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[PIVPLUS1:%.*]], %[[LOOP]] ]
-; NPGSO-NEXT:    [[FOR:%.*]] = phi i32 [ 5, %[[ENTRY]] ], [ [[PIVPLUS1]], %[[LOOP]] ]
-; NPGSO-NEXT:    [[PIVPLUS1]] = add nuw nsw i32 [[PIV]], 1
-; NPGSO-NEXT:    [[COND:%.*]] = icmp ult i32 [[PIV]], 510
-; NPGSO-NEXT:    br i1 [[COND]], label %[[LOOP]], label %[[EXIT:.*]]
+; NPGSO-NEXT:  [[ENTRY:.*:]]
+; NPGSO-NEXT:    br label %[[VECTOR_PH:.*]]
+; NPGSO:       [[VECTOR_PH]]:
+; NPGSO-NEXT:    br label %[[VECTOR_BODY:.*]]
+; NPGSO:       [[VECTOR_BODY]]:
+; NPGSO-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; NPGSO-NEXT:    [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; NPGSO-NEXT:    [[TMP2:%.*]] = phi <4 x i32> [ <i32 poison, i32 poison, i32 poison, i32 5>, %[[VECTOR_PH]] ], [ [[TMP1:%.*]], %[[VECTOR_BODY]] ]
+; NPGSO-NEXT:    [[TMP0:%.*]] = icmp ugt <4 x i32> [[VEC_IND]], splat (i32 510)
+; NPGSO-NEXT:    [[TMP1]] = add nuw nsw <4 x i32> [[VEC_IND]], splat (i32 1)
+; NPGSO-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
+; NPGSO-NEXT:    [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 4)
+; NPGSO-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 512
+; NPGSO-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
+; NPGSO:       [[MIDDLE_BLOCK]]:
+; NPGSO-NEXT:    [[TMP4:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP0]], i1 false)
+; NPGSO-NEXT:    [[TMP5:%.*]] = sub i64 [[TMP4]], 1
+; NPGSO-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
+; NPGSO-NEXT:    [[TMP7:%.*]] = extractelement <4 x i32> [[TMP1]], i64 [[TMP6]]
+; NPGSO-NEXT:    [[TMP8:%.*]] = extractelement <4 x i32> [[TMP2]], i32 3
+; NPGSO-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP5]], 0
+; NPGSO-NEXT:    [[TMP10:%.*]] = select i1 [[TMP9]], i32 [[TMP8]], i32 [[TMP7]]
+; NPGSO-NEXT:    br label %[[EXIT:.*]]
 ; NPGSO:       [[EXIT]]:
-; NPGSO-NEXT:    [[FOR_LCSSA:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
-; NPGSO-NEXT:    ret i32 [[FOR_LCSSA]]
+; NPGSO-NEXT:    ret i32 [[TMP10]]
 ;
 entry:
   br label %loop
@@ -534,31 +576,59 @@ define i32 @pr45526_pgso() !prof !14 {
 ;
 ; CHECK-LABEL: define i32 @pr45526_pgso(
 ; CHECK-SAME: ) !prof [[PROF14]] {
-; CHECK-NEXT:  [[ENTRY:.*]]:
-; CHECK-NEXT:    br label %[[LOOP:.*]]
-; CHECK:       [[LOOP]]:
-; CHECK-NEXT:    [[PIV:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[PIVPLUS1:%.*]], %[[LOOP]] ]
-; CHECK-NEXT:    [[FOR:%.*]] = phi i32 [ 5, %[[ENTRY]] ], [ [[PIVPLUS1]], %[[LOOP]] ]
-; CHECK-NEXT:    [[PIVPLUS1]] = add nuw nsw i32 [[PIV]], 1
-; CHECK-NEXT:    [[COND:%.*]] = icmp ult i32 [[PIV]], 510
-; CHECK-NEXT:    br i1 [[COND]], label %[[LOOP]], label %[[EXIT:.*]]
+; CHECK-NEXT:  [[ENTRY:.*:]]
+; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
+; CHECK:       [[VECTOR_PH]]:
+; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
+; CHECK:       [[VECTOR_BODY]]:
+; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP2:%.*]] = phi <4 x i32> [ <i32 poison, i32 poison, i32 poison, i32 5>, %[[VECTOR_PH]] ], [ [[TMP1:%.*]], %[[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP0:%.*]] = icmp ugt <4 x i32> [[VEC_IND]], splat (i32 510)
+; CHECK-NEXT:    [[TMP1]] = add nuw nsw <4 x i32> [[VEC_IND]], splat (i32 1)
+; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
+; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 4)
+; CHECK-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 512
+; CHECK-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
+; CHECK:       [[MIDDLE_BLOCK]]:
+; CHECK-NEXT:    [[TMP4:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP0]], i1 false)
+; CHECK-NEXT:    [[TMP5:%.*]] = sub i64 [[TMP4]], 1
+; CHECK-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
+; CHECK-NEXT:    [[TMP7:%.*]] = extractelement <4 x i32> [[TMP1]], i64 [[TMP6]]
+; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <4 x i32> [[TMP2]], i32 3
+; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP5]], 0
+; CHECK-NEXT:    [[TMP10:%.*]] = select i1 [[TMP9]], i32 [[TMP8]], i32 [[TMP7]]
+; CHECK-NEXT:    br label %[[EXIT:.*]]
 ; CHECK:       [[EXIT]]:
-; CHECK-NEXT:    [[FOR_LCSSA:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
-; CHECK-NEXT:    ret i32 [[FOR_LCSSA]]
+; CHECK-NEXT:    ret i32 [[TMP10]]
 ;
 ; PGSO-LABEL: define i32 @pr45526_pgso(
 ; PGSO-SAME: ) !prof [[PROF14]] {
-; PGSO-NEXT:  [[ENTRY:.*]]:
-; PGSO-NEXT:    br label %[[LOOP:.*]]
-; PGSO:       [[LOOP]]:
-; PGSO-NEXT:    [[PIV:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[PIVPLUS1:%.*]], %[[LOOP]] ]
-; PGSO-NEXT:    [[FOR:%.*]] = phi i32 [ 5, %[[ENTRY]] ], [ [[PIVPLUS1]], %[[LOOP]] ]
-; PGSO-NEXT:    [[PIVPLUS1]] = add nuw nsw i32 [[PIV]], 1
-; PGSO-NEXT:    [[COND:%.*]] = icmp ult i32 [[PIV]], 510
-; PGSO-NEXT:    br i1 [[COND]], label %[[LOOP]], label %[[EXIT:.*]]
+; PGSO-NEXT:  [[ENTRY:.*:]]
+; PGSO-NEXT:    br label %[[VECTOR_PH:.*]]
+; PGSO:       [[VECTOR_PH]]:
+; PGSO-NEXT:    br label %[[VECTOR_BODY:.*]]
+; PGSO:       [[VECTOR_BODY]]:
+; PGSO-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; PGSO-NEXT:    [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
+; PGSO-NEXT:    [[TMP2:%.*]] = phi <4 x i32> [ <i32 poison, i32 poison, i32 poison, i32 5>, %[[VECTOR_PH]] ], [ [[TMP1:%.*]], %[[VECTOR_BODY]] ]
+; PGSO-NEXT:    [[TMP0:%.*]] = icmp ugt <4 x i32> [[VEC_IND]], splat (i32 510)
+; PGSO-NEXT:    [[TMP1]] = add nuw nsw <4 x i32> [[VEC_IND]], splat (i32 1)
+; PGSO-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
+; PGSO-NEXT:    [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 4)
+; PGSO-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 512
+; PGSO-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
+; PGSO:       [[MIDDLE_BLOCK]]:
+; PGSO-NEXT:    [[TMP4:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP0]], i1 false)
+; PGSO-NEXT:    [[TMP5:%.*]] = sub i64 [[TMP4]], 1
+; PGSO-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
+; PGSO-NEXT:    [[TMP7:%.*]] = extractelement <4 x i32> [[TMP1]], i64 [[TMP6]]
+; PGSO-NEXT:    [[TMP8:%.*]] = extractelement <4 x i32> [[TMP2]], i32 3
+; PGSO-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP5]], 0
+; PGSO-NEXT:    [[TMP10:%.*]] = select i1 [[TMP9]], i32 [[TMP8]], i32 [[TMP7]]
+; PGSO-NEXT:    br label %[[EXIT:.*]]
 ; PGSO:       [[EXIT]]:
-; PGSO-NEXT:    [[FOR_LCSSA:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
-; PGSO-NEXT:    ret i32 [[FOR_LCSSA]]
+; PGSO-NEXT:    ret i32 [[TMP10]]
 ;
 ; NPGSO-LABEL: define i32 @pr45526_pgso(
 ; NPGSO-SAME: ) !prof [[PROF14]] {
@@ -573,7 +643,7 @@ define i32 @pr45526_pgso() !prof !14 {
 ; NPGSO-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
 ; NPGSO-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i32> [[VEC_IND]], splat (i32 4)
 ; NPGSO-NEXT:    [[TMP1:%.*]] = icmp eq i32 [[INDEX_NEXT]], 508
-; NPGSO-NEXT:    br i1 [[TMP1]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
+; NPGSO-NEXT:    br i1 [[TMP1]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
 ; NPGSO:       [[MIDDLE_BLOCK]]:
 ; NPGSO-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <4 x i32> [[TMP0]], i32 3
 ; NPGSO-NEXT:    br label %[[SCALAR_PH:.*]]
@@ -584,7 +654,7 @@ define i32 @pr45526_pgso() !prof !14 {
 ; NPGSO-NEXT:    [[FOR:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], %[[SCALAR_PH]] ], [ [[PIVPLUS1]], %[[LOOP]] ]
 ; NPGSO-NEXT:    [[PIVPLUS1]] = add nuw nsw i32 [[PIV]], 1
 ; NPGSO-NEXT:    [[COND:%.*]] = icmp ult i32 [[PIV]], 510
-; NPGSO-NEXT:    br i1 [[COND]], label %[[LOOP]], label %[[EXIT:.*]], !llvm.loop [[LOOP23:![0-9]+]]
+; NPGSO-NEXT:    br i1 [[COND]], label %[[LOOP]], label %[[EXIT:.*]], !llvm.loop [[LOOP24:![0-9]+]]
 ; NPGSO:       [[EXIT]]:
 ; NPGSO-NEXT:    [[FOR_LCSSA:%.*]] = phi i32 [ [[FOR]], %[[LOOP]] ]
 ; NPGSO-NEXT:    ret i32 [[FOR_LCSSA]]
@@ -640,7 +710,7 @@ define void @stride1(ptr noalias %B, i32 %BStride) optsize {
 ; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2
 ; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <2 x i32> [[VEC_IND]], splat (i32 2)
 ; CHECK-NEXT:    [[TMP8:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1026
-; CHECK-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
+; CHECK-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
 ; CHECK:       [[MIDDLE_BLOCK]]:
 ; CHECK-NEXT:    br label %[[FOR_END:.*]]
 ; CHECK:       [[FOR_END]]:
@@ -678,7 +748,7 @@ define void @stride1(ptr noalias %B, i32 %BStride) optsize {
 ; PGSO-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2
 ; PGSO-NEXT:    [[VEC_IND_NEXT]] = add <2 x i32> [[VEC_IND]], splat (i32 2)
 ; PGSO-NEXT:    [[TMP8:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1026
-; PGSO-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
+; PGSO-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
 ; PGSO:       [[MIDDLE_BLOCK]]:
 ; PGSO-NEXT:    br label %[[FOR_END:.*]]
 ; PGSO:       [[FOR_END]]:
@@ -716,7 +786,7 @@ define void @stride1(ptr noalias %B, i32 %BStride) optsize {
 ; NPGSO-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2
 ; NPGSO-NEXT:    [[VEC_IND_NEXT]] = add <2 x i32> [[VEC_IND]], splat (i32 2)
 ; NPGSO-NEXT:    [[TMP8:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1026
-; NPGSO-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
+; NPGSO-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP25:![0-9]+]]
 ; NPGSO:       [[MIDDLE_BLOCK]]:
 ; NPGSO-NEXT:    br label %[[FOR_END:.*]]
 ; NPGSO:       [[FOR_END]]:
@@ -757,7 +827,7 @@ define void @stride1_pgso(ptr noalias %B, i32 %BStride) !prof !14 {
 ; CHECK-NEXT:    store <2 x i16> splat (i16 42), ptr [[TMP1]], align 4
 ; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[TMP0]], 2
 ; CHECK-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1024
-; CHECK-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
+; CHECK-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
 ; CHECK:       [[MIDDLE_BLOCK]]:
 ; CHECK-NEXT:    br label %[[SCALAR_PH]]
 ; CHECK:       [[SCALAR_PH]]:
@@ -770,7 +840,7 @@ define void @stride1_pgso(ptr noalias %B, i32 %BStride) !prof !14 {
 ; CHECK-NEXT:    store i16 42, ptr [[GEPOFB]], align 4
 ; CHECK-NEXT:    [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
 ; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i32 [[IV_NEXT]], 1025
-; CHECK-NEXT:    br i1 [[EXITCOND]], label %[[FOR_END:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
+; CHECK-NEXT:    br i1 [[EXITCOND]], label %[[FOR_END:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
 ; CHECK:       [[FOR_END]]:
 ; CHECK-NEXT:    ret void
 ;
@@ -789,7 +859,7 @@ define void @stride1_pgso(ptr noalias %B, i32 %BStride) !prof !14 {
 ; PGSO-NEXT:    store <2 x i16> splat (i16 42), ptr [[TMP1]], align 4
 ; PGSO-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[TMP0]], 2
 ; PGSO-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1024
-; PGSO-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
+; PGSO-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
 ; PGSO:       [[MIDDLE_BLOCK]]:
 ; PGSO-NEXT:    br label %[[SCALAR_PH]]
 ; PGSO:       [[SCALAR_PH]]:
@@ -802,7 +872,7 @@ define void @stride1_pgso(ptr noalias %B, i32 %BStride) !prof !14 {
 ; PGSO-NEXT:    store i16 42, ptr [[GEPOFB]], align 4
 ; PGSO-NEXT:    [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
 ; PGSO-NEXT:    [[EXITCOND:%.*]] = icmp eq i32 [[IV_NEXT]], 1025
-; PGSO-NEXT:    br i1 [[EXITCOND]], label %[[FOR_END:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
+; PGSO-NEXT:    br i1 [[EXITCOND]], label %[[FOR_END:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
 ; PGSO:       [[FOR_END]]:
 ; PGSO-NEXT:    ret void
 ;
@@ -821,7 +891,7 @@ define void @stride1_pgso(ptr noalias %B, i32 %BStride) !prof !14 {
 ; NPGSO-NEXT:    store <2 x i16> splat (i16 42), ptr [[TMP1]], align 4
 ; NPGSO-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[TMP0]], 2
 ; NPGSO-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 1024
-; NPGSO-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP25:![0-9]+]]
+; NPGSO-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP26:![0-9]+]]
 ; NPGSO:       [[MIDDLE_BLOCK]]:
 ; NPGSO-NEXT:    br label %[[SCALAR_PH]]
 ; NPGSO:       [[SCALAR_PH]]:
@@ -834,7 +904,7 @@ define void @stride1_pgso(ptr noalias %B, i32 %BStride) !prof !14 {
 ; NPGSO-NEXT:    store i16 42, ptr [[GEPOFB]], align 4
 ; NPGSO-NEXT:    [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
 ; NPGSO-NEXT:    [[EXITCOND:%.*]] = icmp eq i32 [[IV_NEXT]], 1025
-; NPGSO-NEXT:    br i1 [[EXITCOND]], label %[[FOR_END:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP26:![0-9]+]]
+; NPGSO-NEXT:    br i1 [[EXITCOND]], label %[[FOR_END:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP27:![0-9]+]]
 ; NPGSO:       [[FOR_END]]:
 ; NPGSO-NEXT:    ret void
 ;
@@ -1020,7 +1090,9 @@ exit:
 ; CHECK: [[LOOP18]] = distinct !{[[LOOP18]], [[META16]], [[META17]]}
 ; CHECK: [[LOOP19]] = distinct !{[[LOOP19]], [[META16]], [[META17]]}
 ; CHECK: [[LOOP20]] = distinct !{[[LOOP20]], [[META16]], [[META17]]}
-; CHECK: [[LOOP21]] = distinct !{[[LOOP21]], [[META16]]}
+; CHECK: [[LOOP21]] = distinct !{[[LOOP21]], [[META16]], [[META17]]}
+; CHECK: [[LOOP22]] = distinct !{[[LOOP22]], [[META16]], [[META17]]}
+; CHECK: [[LOOP23]] = distinct !{[[LOOP23]], [[META16]]}
 ;.
 ; PGSO: [[PROF14]] = !{!"function_entry_count", i64 0}
 ; PGSO: [[LOOP15]] = distinct !{[[LOOP15]], [[META16:![0-9]+]], [[META17:![0-9]+]]}
@@ -1029,7 +1101,9 @@ exit:
 ; PGSO: [[LOOP18]] = distinct !{[[LOOP18]], [[META16]], [[META17]]}
 ; PGSO: [[LOOP19]] = distinct !{[[LOOP19]], [[META16]], [[META17]]}
 ; PGSO: [[LOOP20]] = distinct !{[[LOOP20]], [[META16]], [[META17]]}
-; PGSO: [[LOOP21]] = distinct !{[[LOOP21]], [[META16]]}
+; PGSO: [[LOOP21]] = distinct !{[[LOOP21]], [[META16]], [[META17]]}
+; PGSO: [[LOOP22]] = distinct !{[[LOOP22]], [[META16]], [[META17]]}
+; PGSO: [[LOOP23]] = distinct !{[[LOOP23]], [[META16]]}
 ;.
 ; NPGSO: [[PROF14]] = !{!"function_entry_count", i64 0}
 ; NPGSO: [[LOOP15]] = distinct !{[[LOOP15]], [[META16:![0-9]+]], [[META17:![0-9]+]]}
@@ -1040,8 +1114,9 @@ exit:
 ; NPGSO: [[LOOP20]] = distinct !{[[LOOP20]], [[META16]], [[META17]]}
 ; NPGSO: [[LOOP21]] = distinct !{[[LOOP21]], [[META16]]}
 ; NPGSO: [[LOOP22]] = distinct !{[[LOOP22]], [[META16]], [[META17]]}
-; NPGSO: [[LOOP23]] = distinct !{[[LOOP23]], [[META17]], [[META16]]}
-; NPGSO: [[LOOP24]] = distinct !{[[LOOP24]], [[META16]], [[META17]]}
+; NPGSO: [[LOOP23]] = distinct !{[[LOOP23]], [[META16]], [[META17]]}
+; NPGSO: [[LOOP24]] = distinct !{[[LOOP24]], [[META17]], [[META16]]}
 ; NPGSO: [[LOOP25]] = distinct !{[[LOOP25]], [[META16]], [[META17]]}
-; NPGSO: [[LOOP26]] = distinct !{[[LOOP26]], [[META16]]}
+; NPGSO: [[LOOP26]] = distinct !{[[LOOP26]], [[META16]], [[META17]]}
+; NPGSO: [[LOOP27]] = distinct !{[[LOOP27]], [[META16]]}
 ;.
diff --git a/llvm/test/Transforms/LoopVectorize/pr43166-fold-tail-by-masking.ll b/llvm/test/Transforms/LoopVectorize/pr43166-fold-tail-by-masking.ll
index cbc9fccebb881..71e6879b017da 100644
--- a/llvm/test/Transforms/LoopVectorize/pr43166-fold-tail-by-masking.ll
+++ b/llvm/test/Transforms/LoopVectorize/pr43166-fold-tail-by-masking.ll
@@ -39,22 +39,24 @@
 define i64 @test1(i64 %y) {
 ; CHECK-LABEL: @test1(
 ; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br label [[VECTOR_PH:%.*]]
+; CHECK:       vector.ph:
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[Y:%.*]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP0:%.*]] = icmp eq <4 x i64> [[BROADCAST_SPLAT]], zeroinitializer
+; CHECK-NEXT:    [[TMP1:%.*]] = xor <4 x i64> splat (i64 3), [[BROADCAST_SPLAT]]
+; CHECK-NEXT:    [[TMP2:%.*]] = extractelement <4 x i1> [[TMP0]], i32 0
+; CHECK-NEXT:    [[PREDPHI:%.*]] = select i1 [[TMP2]], <4 x i64> splat (i64 77), <4 x i64> [[TMP1]]
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK:       for.body:
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[COND_END:%.*]] ]
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i64 [[Y:%.*]], 0
-; CHECK-NEXT:    br i1 [[CMP]], label [[COND_END]], label [[COND_FALSE:%.*]]
-; CHECK:       cond.false:
-; CHECK-NEXT:    [[DIV:%.*]] = xor i64 3, [[Y]]
-; CHECK-NEXT:    br label [[COND_END]]
-; CHECK:       cond.end:
-; CHECK-NEXT:    [[COND:%.*]] = phi i64 [ [[DIV]], [[COND_FALSE]] ], [ 77, [[FOR_BODY]] ]
-; CHECK-NEXT:    [[INC]] = add nuw nsw i32 [[I]], 1
-; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i32 [[INC]], 3
-; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]]
+; CHECK:       vector.body:
+; CHECK-NEXT:    br label [[MIDDLE_BLOCK:%.*]]
+; CHECK:       middle.block:
+; CHECK-NEXT:    [[TMP3:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> <i1 false, i1 false, i1 false, i1 true>, i1 false)
+; CHECK-NEXT:    [[TMP4:%.*]] = sub i64 [[TMP3]], 1
+; CHECK-NEXT:    [[TMP5:%.*]] = extractelement <4 x i64> [[PREDPHI]], i64 [[TMP4]]
+; CHECK-NEXT:    br label [[COND_END:%.*]]
 ; CHECK:       for.cond.cleanup:
-; CHECK-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], [[COND_END]] ]
-; CHECK-NEXT:    ret i64 [[COND_LCSSA]]
+; CHECK-NEXT:    ret i64 [[TMP5]]
 ;
 entry:
   br label %for.body
@@ -84,21 +86,23 @@ for.cond.cleanup:
 define i64 @test2(i64 %y) {
 ; CHECK-LABEL: @test2(
 ; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br label [[VECTOR_PH:%.*]]
+; CHECK:       vector.ph:
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[Y:%.*]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP0:%.*]] = icmp eq <4 x i64> [[BROADCAST_SPLAT]], zeroinitializer
+; CHECK-NEXT:    [[TMP1:%.*]] = extractelement <4 x i1> [[TMP0]], i32 0
+; CHECK-NEXT:    [[PREDPHI:%.*]] = select i1 [[TMP1]], <4 x i64> splat (i64 77), <4 x i64> splat (i64 55)
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK:       for.body:
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[COND_END:%.*]] ]
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i64 [[Y:%.*]], 0
-; CHECK-NEXT:    br i1 [[CMP]], label [[COND_END]], label [[COND_FALSE:%.*]]
-; CHECK:       cond.false:
-; CHECK-NEXT:    br label [[COND_END]]
-; CHECK:       cond.end:
-; CHECK-NEXT:    [[COND:%.*]] = phi i64 [ 55, [[COND_FALSE]] ], [ 77, [[FOR_BODY]] ]
-; CHECK-NEXT:    [[INC]] = add nuw nsw i32 [[I]], 1
-; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i32 [[INC]], 3
-; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]]
+; CHECK:       vector.body:
+; CHECK-NEXT:    br label [[MIDDLE_BLOCK:%.*]]
+; CHECK:       middle.block:
+; CHECK-NEXT:    [[TMP2:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> <i1 false, i1 false, i1 false, i1 true>, i1 false)
+; CHECK-NEXT:    [[TMP3:%.*]] = sub i64 [[TMP2]], 1
+; CHECK-NEXT:    [[TMP4:%.*]] = extractelement <4 x i64> [[PREDPHI]], i64 [[TMP3]]
+; CHECK-NEXT:    br label [[COND_END:%.*]]
 ; CHECK:       for.cond.cleanup:
-; CHECK-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], [[COND_END]] ]
-; CHECK-NEXT:    ret i64 [[COND_LCSSA]]
+; CHECK-NEXT:    ret i64 [[TMP4]]
 ;
 entry:
   br label %for.body
@@ -127,21 +131,23 @@ for.cond.cleanup:
 define i32 @test3(i64 %y) {
 ; CHECK-LABEL: @test3(
 ; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br label [[VECTOR_PH:%.*]]
+; CHECK:       vector.ph:
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[Y:%.*]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
+; CHECK-NEXT:    [[TMP0:%.*]] = icmp eq <4 x i64> [[BROADCAST_SPLAT]], zeroinitializer
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK:       for.body:
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[COND_END:%.*]] ]
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i64 [[Y:%.*]], 0
-; CHECK-NEXT:    br i1 [[CMP]], label [[COND_END]], label [[COND_FALSE:%.*]]
-; CHECK:       cond.false:
-; CHECK-NEXT:    br label [[COND_END]]
-; CHECK:       cond.end:
-; CHECK-NEXT:    [[COND:%.*]] = phi i32 [ 55, [[COND_FALSE]] ], [ [[I]], [[FOR_BODY]] ]
-; CHECK-NEXT:    [[INC]] = add nuw nsw i32 [[I]], 1
-; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i32 [[INC]], 3
-; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]]
+; CHECK:       vector.body:
+; CHECK-NEXT:    [[TMP1:%.*]] = extractelement <4 x i1> [[TMP0]], i32 0
+; CHECK-NEXT:    [[PREDPHI:%.*]] = select i1 [[TMP1]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>, <4 x i32> splat (i32 55)
+; CHECK-NEXT:    br label [[MIDDLE_BLOCK:%.*]]
+; CHECK:       middle.block:
+; CHECK-NEXT:    [[TMP2:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> <i1 false, i1 false, i1 false, i1 true>, i1 false)
+; CHECK-NEXT:    [[TMP3:%.*]] = sub i64 [[TMP2]], 1
+; CHECK-NEXT:    [[TMP4:%.*]] = extractelement <4 x i32> [[PREDPHI]], i64 [[TMP3]]
+; CHECK-NEXT:    br label [[COND_END:%.*]]
 ; CHECK:       for.cond.cleanup:
-; CHECK-NEXT:    [[COND_LCSSA:%.*]] = phi i32 [ [[COND]], [[COND_END]] ]
-; CHECK-NEXT:    ret i32 [[COND_LCSSA]]
+; CHECK-NEXT:    ret i32 [[TMP4]]
 ;
 entry:
   br label %for.body
diff --git a/llvm/test/Transforms/LoopVectorize/single-early-exit-cond-poison.ll b/llvm/test/Transforms/LoopVectorize/single-early-exit-cond-poison.ll
index 794e274a2628c..f11f35319b8fc 100644
--- a/llvm/test/Transforms/LoopVectorize/single-early-exit-cond-poison.ll
+++ b/llvm/test/Transforms/LoopVectorize/single-early-exit-cond-poison.ll
@@ -31,9 +31,9 @@ define noundef i32 @f(i32 noundef %g) {
 ; VF4IC2:       [[MIDDLE_BLOCK]]:
 ; VF4IC2-NEXT:    br label %[[RETURN:.*]]
 ; VF4IC2:       [[VECTOR_EARLY_EXIT]]:
-; VF4IC2-NEXT:    [[TMP9:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 true)
+; VF4IC2-NEXT:    [[TMP9:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 false)
 ; VF4IC2-NEXT:    [[TMP10:%.*]] = add i64 4, [[TMP9]]
-; VF4IC2-NEXT:    [[TMP11:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 true)
+; VF4IC2-NEXT:    [[TMP11:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 false)
 ; VF4IC2-NEXT:    [[TMP12:%.*]] = add i64 0, [[TMP11]]
 ; VF4IC2-NEXT:    [[TMP13:%.*]] = icmp ne i64 [[TMP11]], 4
 ; VF4IC2-NEXT:    [[TMP14:%.*]] = select i1 [[TMP13]], i64 [[TMP12]], i64 [[TMP10]]
@@ -64,7 +64,7 @@ define noundef i32 @f(i32 noundef %g) {
 ; VF8IC1:       [[MIDDLE_BLOCK]]:
 ; VF8IC1-NEXT:    br label %[[RETURN:.*]]
 ; VF8IC1:       [[VECTOR_EARLY_EXIT]]:
-; VF8IC1-NEXT:    [[TMP5:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP2]], i1 true)
+; VF8IC1-NEXT:    [[TMP5:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP2]], i1 false)
 ; VF8IC1-NEXT:    [[TMP6:%.*]] = trunc i64 [[TMP5]] to i32
 ; VF8IC1-NEXT:    [[TMP7:%.*]] = add i32 0, [[TMP6]]
 ; VF8IC1-NEXT:    br label %[[RETURN]]
diff --git a/llvm/test/Transforms/LoopVectorize/single-early-exit-deref-assumptions.ll b/llvm/test/Transforms/LoopVectorize/single-early-exit-deref-assumptions.ll
index 03b7ed7fe2135..0bc2748b6252d 100644
--- a/llvm/test/Transforms/LoopVectorize/single-early-exit-deref-assumptions.ll
+++ b/llvm/test/Transforms/LoopVectorize/single-early-exit-deref-assumptions.ll
@@ -28,7 +28,7 @@ define i64 @early_exit_alignment_and_deref_known_via_assumption_with_constant_si
 ; CHECK:       [[MIDDLE_BLOCK]]:
 ; CHECK-NEXT:    br label %[[LOOP_END:.*]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP8:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 true)
+; CHECK-NEXT:    [[TMP8:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 false)
 ; CHECK-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX1]], [[TMP8]]
 ; CHECK-NEXT:    br label %[[LOOP_END]]
 ; CHECK:       [[LOOP_END]]:
@@ -140,7 +140,7 @@ define i64 @early_exit_alignment_and_deref_known_via_assumption_n_not_zero(ptr n
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label %[[LOOP_END_LOOPEXIT:.*]], label %[[SCALAR_PH]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP7:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP2]], i1 true)
+; CHECK-NEXT:    [[TMP7:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP2]], i1 false)
 ; CHECK-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX1]], [[TMP7]]
 ; CHECK-NEXT:    br label %[[LOOP_END_LOOPEXIT]]
 ; CHECK:       [[SCALAR_PH]]:
@@ -336,7 +336,7 @@ define i64 @early_exit_alignment_and_deref_known_via_assumption_n_not_zero_i16_p
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP2]], [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP10:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 true)
+; CHECK-NEXT:    [[TMP10:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 false)
 ; CHECK-NEXT:    [[TMP11:%.*]] = add i64 [[INDEX]], [[TMP10]]
 ; CHECK-NEXT:    [[TMP12:%.*]] = mul i64 [[TMP11]], 2
 ; CHECK-NEXT:    [[TMP13:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP12]]
@@ -431,7 +431,7 @@ define ptr @find_deref_pointer_distance_align_attribute_argument(ptr align 2 %fi
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP3]], [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP11:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[TMP11:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP12:%.*]] = add i64 [[INDEX]], [[TMP11]]
 ; CHECK-NEXT:    [[TMP13:%.*]] = mul i64 [[TMP12]], 2
 ; CHECK-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[FIRST]], i64 [[TMP13]]
@@ -525,7 +525,7 @@ define ptr @find_deref_pointer_distance_align_assumption(ptr %first, ptr %last)
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP3]], [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP11:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[TMP11:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP12:%.*]] = add i64 [[INDEX]], [[TMP11]]
 ; CHECK-NEXT:    [[TMP13:%.*]] = mul i64 [[TMP12]], 2
 ; CHECK-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[FIRST]], i64 [[TMP13]]
@@ -602,7 +602,7 @@ define i64 @early_exit_alignment_and_deref_known_via_assumption_with_constant_si
 ; CHECK:       [[MIDDLE_BLOCK]]:
 ; CHECK-NEXT:    br label %[[LOOP_END:.*]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP7:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP2]], i1 true)
+; CHECK-NEXT:    [[TMP7:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP2]], i1 false)
 ; CHECK-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX1]], [[TMP7]]
 ; CHECK-NEXT:    br label %[[LOOP_END]]
 ; CHECK:       [[LOOP_END]]:
@@ -740,7 +740,7 @@ define i64 @find_if_pointer_distance_deref_via_assumption(ptr %vec) nofree nosyn
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP3]], [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP11:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[TMP11:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP12:%.*]] = add i64 [[INDEX]], [[TMP11]]
 ; CHECK-NEXT:    [[TMP13:%.*]] = mul i64 [[TMP12]], 2
 ; CHECK-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[BEGIN]], i64 [[TMP13]]
diff --git a/llvm/test/Transforms/LoopVectorize/single-early-exit-interleave.ll b/llvm/test/Transforms/LoopVectorize/single-early-exit-interleave.ll
index ed5dcc78eeb78..053863117bdc8 100644
--- a/llvm/test/Transforms/LoopVectorize/single-early-exit-interleave.ll
+++ b/llvm/test/Transforms/LoopVectorize/single-early-exit-interleave.ll
@@ -124,17 +124,17 @@ define i64 @same_exit_block_pre_inc_use1() {
 ; VF4IC4:       middle.block:
 ; VF4IC4-NEXT:    br label [[LOOP_END:%.*]]
 ; VF4IC4:       vector.early.exit:
-; VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP35]], i1 true)
+; VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP35]], i1 false)
 ; VF4IC4-NEXT:    [[TMP21:%.*]] = add i64 12, [[TMP20]]
-; VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 true)
+; VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 false)
 ; VF4IC4-NEXT:    [[TMP23:%.*]] = add i64 8, [[TMP22]]
 ; VF4IC4-NEXT:    [[TMP24:%.*]] = icmp ne i64 [[TMP22]], 4
 ; VF4IC4-NEXT:    [[TMP25:%.*]] = select i1 [[TMP24]], i64 [[TMP23]], i64 [[TMP21]]
-; VF4IC4-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 true)
+; VF4IC4-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 false)
 ; VF4IC4-NEXT:    [[TMP27:%.*]] = add i64 4, [[TMP26]]
 ; VF4IC4-NEXT:    [[TMP28:%.*]] = icmp ne i64 [[TMP26]], 4
 ; VF4IC4-NEXT:    [[TMP29:%.*]] = select i1 [[TMP28]], i64 [[TMP27]], i64 [[TMP25]]
-; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 true)
+; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 false)
 ; VF4IC4-NEXT:    [[TMP31:%.*]] = add i64 0, [[TMP30]]
 ; VF4IC4-NEXT:    [[TMP32:%.*]] = icmp ne i64 [[TMP30]], 4
 ; VF4IC4-NEXT:    [[TMP8:%.*]] = select i1 [[TMP32]], i64 [[TMP31]], i64 [[TMP29]]
@@ -211,17 +211,17 @@ define ptr @same_exit_block_pre_inc_use1_ivptr() {
 ; VF4IC4:       middle.block:
 ; VF4IC4-NEXT:    br label [[LOOP_END:%.*]]
 ; VF4IC4:       vector.early.exit:
-; VF4IC4-NEXT:    [[TMP15:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP29]], i1 true)
+; VF4IC4-NEXT:    [[TMP15:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP29]], i1 false)
 ; VF4IC4-NEXT:    [[TMP16:%.*]] = add i64 12, [[TMP15]]
-; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP28]], i1 true)
+; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP28]], i1 false)
 ; VF4IC4-NEXT:    [[TMP18:%.*]] = add i64 8, [[TMP30]]
 ; VF4IC4-NEXT:    [[TMP19:%.*]] = icmp ne i64 [[TMP30]], 4
 ; VF4IC4-NEXT:    [[TMP20:%.*]] = select i1 [[TMP19]], i64 [[TMP18]], i64 [[TMP16]]
-; VF4IC4-NEXT:    [[TMP21:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP14]], i1 true)
+; VF4IC4-NEXT:    [[TMP21:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP14]], i1 false)
 ; VF4IC4-NEXT:    [[TMP22:%.*]] = add i64 4, [[TMP21]]
 ; VF4IC4-NEXT:    [[TMP23:%.*]] = icmp ne i64 [[TMP21]], 4
 ; VF4IC4-NEXT:    [[TMP24:%.*]] = select i1 [[TMP23]], i64 [[TMP22]], i64 [[TMP20]]
-; VF4IC4-NEXT:    [[TMP25:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP17]], i1 true)
+; VF4IC4-NEXT:    [[TMP25:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP17]], i1 false)
 ; VF4IC4-NEXT:    [[TMP26:%.*]] = add i64 0, [[TMP25]]
 ; VF4IC4-NEXT:    [[TMP27:%.*]] = icmp ne i64 [[TMP25]], 4
 ; VF4IC4-NEXT:    [[TMP6:%.*]] = select i1 [[TMP27]], i64 [[TMP26]], i64 [[TMP24]]
@@ -304,17 +304,17 @@ define i64 @same_exit_block_post_inc_use() {
 ; VF4IC4:       middle.block:
 ; VF4IC4-NEXT:    br label [[LOOP_END:%.*]]
 ; VF4IC4:       vector.early.exit:
-; VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP35]], i1 true)
+; VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP35]], i1 false)
 ; VF4IC4-NEXT:    [[TMP21:%.*]] = add i64 12, [[TMP20]]
-; VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 true)
+; VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 false)
 ; VF4IC4-NEXT:    [[TMP23:%.*]] = add i64 8, [[TMP22]]
 ; VF4IC4-NEXT:    [[TMP24:%.*]] = icmp ne i64 [[TMP22]], 4
 ; VF4IC4-NEXT:    [[TMP25:%.*]] = select i1 [[TMP24]], i64 [[TMP23]], i64 [[TMP21]]
-; VF4IC4-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 true)
+; VF4IC4-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 false)
 ; VF4IC4-NEXT:    [[TMP27:%.*]] = add i64 4, [[TMP26]]
 ; VF4IC4-NEXT:    [[TMP28:%.*]] = icmp ne i64 [[TMP26]], 4
 ; VF4IC4-NEXT:    [[TMP29:%.*]] = select i1 [[TMP28]], i64 [[TMP27]], i64 [[TMP25]]
-; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 true)
+; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 false)
 ; VF4IC4-NEXT:    [[TMP31:%.*]] = add i64 0, [[TMP30]]
 ; VF4IC4-NEXT:    [[TMP32:%.*]] = icmp ne i64 [[TMP30]], 4
 ; VF4IC4-NEXT:    [[TMP8:%.*]] = select i1 [[TMP32]], i64 [[TMP31]], i64 [[TMP29]]
@@ -401,17 +401,17 @@ define i64 @diff_exit_block_pre_inc_use1() {
 ; VF4IC4:       middle.block:
 ; VF4IC4-NEXT:    br label [[LOOP_END:%.*]]
 ; VF4IC4:       vector.early.exit:
-; VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP35]], i1 true)
+; VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP35]], i1 false)
 ; VF4IC4-NEXT:    [[TMP21:%.*]] = add i64 12, [[TMP20]]
-; VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 true)
+; VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 false)
 ; VF4IC4-NEXT:    [[TMP23:%.*]] = add i64 8, [[TMP22]]
 ; VF4IC4-NEXT:    [[TMP24:%.*]] = icmp ne i64 [[TMP22]], 4
 ; VF4IC4-NEXT:    [[TMP25:%.*]] = select i1 [[TMP24]], i64 [[TMP23]], i64 [[TMP21]]
-; VF4IC4-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 true)
+; VF4IC4-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 false)
 ; VF4IC4-NEXT:    [[TMP27:%.*]] = add i64 4, [[TMP26]]
 ; VF4IC4-NEXT:    [[TMP28:%.*]] = icmp ne i64 [[TMP26]], 4
 ; VF4IC4-NEXT:    [[TMP29:%.*]] = select i1 [[TMP28]], i64 [[TMP27]], i64 [[TMP25]]
-; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 true)
+; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 false)
 ; VF4IC4-NEXT:    [[TMP31:%.*]] = add i64 0, [[TMP30]]
 ; VF4IC4-NEXT:    [[TMP32:%.*]] = icmp ne i64 [[TMP30]], 4
 ; VF4IC4-NEXT:    [[TMP8:%.*]] = select i1 [[TMP32]], i64 [[TMP31]], i64 [[TMP29]]
@@ -503,17 +503,17 @@ define i64 @diff_exit_block_post_inc_use1() {
 ; VF4IC4:       middle.block:
 ; VF4IC4-NEXT:    br label [[LOOP_END:%.*]]
 ; VF4IC4:       vector.early.exit:
-; VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP35]], i1 true)
+; VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP35]], i1 false)
 ; VF4IC4-NEXT:    [[TMP21:%.*]] = add i64 12, [[TMP20]]
-; VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 true)
+; VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 false)
 ; VF4IC4-NEXT:    [[TMP23:%.*]] = add i64 8, [[TMP22]]
 ; VF4IC4-NEXT:    [[TMP24:%.*]] = icmp ne i64 [[TMP22]], 4
 ; VF4IC4-NEXT:    [[TMP25:%.*]] = select i1 [[TMP24]], i64 [[TMP23]], i64 [[TMP21]]
-; VF4IC4-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 true)
+; VF4IC4-NEXT:    [[TMP26:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 false)
 ; VF4IC4-NEXT:    [[TMP27:%.*]] = add i64 4, [[TMP26]]
 ; VF4IC4-NEXT:    [[TMP28:%.*]] = icmp ne i64 [[TMP26]], 4
 ; VF4IC4-NEXT:    [[TMP29:%.*]] = select i1 [[TMP28]], i64 [[TMP27]], i64 [[TMP25]]
-; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 true)
+; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 false)
 ; VF4IC4-NEXT:    [[TMP31:%.*]] = add i64 0, [[TMP30]]
 ; VF4IC4-NEXT:    [[TMP32:%.*]] = icmp ne i64 [[TMP30]], 4
 ; VF4IC4-NEXT:    [[TMP8:%.*]] = select i1 [[TMP32]], i64 [[TMP31]], i64 [[TMP29]]
@@ -623,17 +623,17 @@ define i64 @same_exit_block_pre_inc_use1_reverse() {
 ; VF4IC4:       middle.block:
 ; VF4IC4-NEXT:    br label [[SCALAR_PH:%.*]]
 ; VF4IC4:       vector.early.exit:
-; VF4IC4-NEXT:    [[TMP28:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP43]], i1 true)
+; VF4IC4-NEXT:    [[TMP28:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP43]], i1 false)
 ; VF4IC4-NEXT:    [[TMP29:%.*]] = add i64 12, [[TMP28]]
-; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP20]], i1 true)
+; VF4IC4-NEXT:    [[TMP30:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP20]], i1 false)
 ; VF4IC4-NEXT:    [[TMP31:%.*]] = add i64 8, [[TMP30]]
 ; VF4IC4-NEXT:    [[TMP32:%.*]] = icmp ne i64 [[TMP30]], 4
 ; VF4IC4-NEXT:    [[TMP33:%.*]] = select i1 [[TMP32]], i64 [[TMP31]], i64 [[TMP29]]
-; VF4IC4-NEXT:    [[TMP34:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP19]], i1 true)
+; VF4IC4-NEXT:    [[TMP34:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP19]], i1 false)
 ; VF4IC4-NEXT:    [[TMP35:%.*]] = add i64 4, [[TMP34]]
 ; VF4IC4-NEXT:    [[TMP36:%.*]] = icmp ne i64 [[TMP34]], 4
 ; VF4IC4-NEXT:    [[TMP37:%.*]] = select i1 [[TMP36]], i64 [[TMP35]], i64 [[TMP33]]
-; VF4IC4-NEXT:    [[TMP38:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP21]], i1 true)
+; VF4IC4-NEXT:    [[TMP38:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP21]], i1 false)
 ; VF4IC4-NEXT:    [[TMP39:%.*]] = add i64 0, [[TMP38]]
 ; VF4IC4-NEXT:    [[TMP40:%.*]] = icmp ne i64 [[TMP38]], 4
 ; VF4IC4-NEXT:    [[TMP10:%.*]] = select i1 [[TMP40]], i64 [[TMP39]], i64 [[TMP37]]
@@ -734,17 +734,17 @@ define i8 @same_exit_block_use_loaded_value() {
 ; VF4IC4:       middle.block:
 ; VF4IC4-NEXT:    br label [[LOOP_END:%.*]]
 ; VF4IC4:       vector.early.exit:
-; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP17]], i1 true)
+; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP17]], i1 false)
 ; VF4IC4-NEXT:    [[TMP20:%.*]] = add i64 12, [[FIRST_ACTIVE_LANE]]
-; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE8:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 true)
+; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE8:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 false)
 ; VF4IC4-NEXT:    [[TMP21:%.*]] = add i64 8, [[FIRST_ACTIVE_LANE8]]
 ; VF4IC4-NEXT:    [[TMP22:%.*]] = icmp ne i64 [[FIRST_ACTIVE_LANE8]], 4
 ; VF4IC4-NEXT:    [[TMP23:%.*]] = select i1 [[TMP22]], i64 [[TMP21]], i64 [[TMP20]]
-; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE9:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP29]], i1 true)
+; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE9:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP29]], i1 false)
 ; VF4IC4-NEXT:    [[TMP24:%.*]] = add i64 4, [[FIRST_ACTIVE_LANE9]]
 ; VF4IC4-NEXT:    [[TMP25:%.*]] = icmp ne i64 [[FIRST_ACTIVE_LANE9]], 4
 ; VF4IC4-NEXT:    [[TMP26:%.*]] = select i1 [[TMP25]], i64 [[TMP24]], i64 [[TMP23]]
-; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE1:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 true)
+; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE1:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP12]], i1 false)
 ; VF4IC4-NEXT:    [[TMP27:%.*]] = add i64 0, [[FIRST_ACTIVE_LANE1]]
 ; VF4IC4-NEXT:    [[TMP28:%.*]] = icmp ne i64 [[FIRST_ACTIVE_LANE1]], 4
 ; VF4IC4-NEXT:    [[TMP8:%.*]] = select i1 [[TMP28]], i64 [[TMP27]], i64 [[TMP26]]
@@ -861,17 +861,17 @@ define i8 @same_exit_block_reverse_use_loaded_value() {
 ; VF4IC4:       middle.block:
 ; VF4IC4-NEXT:    br label [[SCALAR_PH:%.*]]
 ; VF4IC4:       vector.early.exit:
-; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP37]], i1 true)
+; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP37]], i1 false)
 ; VF4IC4-NEXT:    [[TMP28:%.*]] = add i64 12, [[FIRST_ACTIVE_LANE]]
-; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE15:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP20]], i1 true)
+; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE15:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP20]], i1 false)
 ; VF4IC4-NEXT:    [[TMP29:%.*]] = add i64 8, [[FIRST_ACTIVE_LANE15]]
 ; VF4IC4-NEXT:    [[TMP30:%.*]] = icmp ne i64 [[FIRST_ACTIVE_LANE15]], 4
 ; VF4IC4-NEXT:    [[TMP31:%.*]] = select i1 [[TMP30]], i64 [[TMP29]], i64 [[TMP28]]
-; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE16:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP19]], i1 true)
+; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE16:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP19]], i1 false)
 ; VF4IC4-NEXT:    [[TMP32:%.*]] = add i64 4, [[FIRST_ACTIVE_LANE16]]
 ; VF4IC4-NEXT:    [[TMP33:%.*]] = icmp ne i64 [[FIRST_ACTIVE_LANE16]], 4
 ; VF4IC4-NEXT:    [[TMP34:%.*]] = select i1 [[TMP33]], i64 [[TMP32]], i64 [[TMP31]]
-; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE1:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP21]], i1 true)
+; VF4IC4-NEXT:    [[FIRST_ACTIVE_LANE1:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP21]], i1 false)
 ; VF4IC4-NEXT:    [[TMP35:%.*]] = add i64 0, [[FIRST_ACTIVE_LANE1]]
 ; VF4IC4-NEXT:    [[TMP36:%.*]] = icmp ne i64 [[FIRST_ACTIVE_LANE1]], 4
 ; VF4IC4-NEXT:    [[TMP10:%.*]] = select i1 [[TMP36]], i64 [[TMP35]], i64 [[TMP34]]
diff --git a/llvm/test/Transforms/LoopVectorize/single_early_exit.ll b/llvm/test/Transforms/LoopVectorize/single_early_exit.ll
index 4fd8d17073de4..ae03f2426a800 100644
--- a/llvm/test/Transforms/LoopVectorize/single_early_exit.ll
+++ b/llvm/test/Transforms/LoopVectorize/single_early_exit.ll
@@ -424,7 +424,7 @@ define i64 @loop_guard_needed_to_prove_dereferenceable(i32 %x, i1 %cmp2) {
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label [[EXIT_LOOPEXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[TMP7:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP2]], i1 true)
+; CHECK-NEXT:    [[TMP7:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP2]], i1 false)
 ; CHECK-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX]], [[TMP7]]
 ; CHECK-NEXT:    br label [[EXIT_LOOPEXIT]]
 ; CHECK:       scalar.ph:
@@ -572,7 +572,7 @@ define i64 @loop_guards_needed_to_prove_deref_multiple(i32 %x, i1 %c, ptr derefe
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP2]], [[IV_NEXT]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label [[EXIT_LOOPEXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[TMP9:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 true)
+; CHECK-NEXT:    [[TMP9:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], [[TMP9]]
 ; CHECK-NEXT:    br label [[EXIT_LOOPEXIT]]
 ; CHECK:       scalar.ph:
diff --git a/llvm/test/Transforms/LoopVectorize/single_early_exit_live_outs.ll b/llvm/test/Transforms/LoopVectorize/single_early_exit_live_outs.ll
index 79821b8be1734..55682bc410527 100644
--- a/llvm/test/Transforms/LoopVectorize/single_early_exit_live_outs.ll
+++ b/llvm/test/Transforms/LoopVectorize/single_early_exit_live_outs.ll
@@ -32,7 +32,7 @@ define i64 @same_exit_block_pre_inc_use1() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -96,7 +96,7 @@ define i32 @same_exit_block_pre_inc_use1_iv64_endi32_step2() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[DOTCAST:%.*]] = trunc i64 [[TMP10]] to i32
 ; CHECK-NEXT:    [[TMP11:%.*]] = mul i32 [[DOTCAST]], 2
@@ -160,7 +160,7 @@ define i32 @same_exit_block_pre_inc_use1_iv128_endi32_step2() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 false)
 ; CHECK-NEXT:    [[TMP8:%.*]] = zext i64 [[FIRST_ACTIVE_LANE]] to i128
 ; CHECK-NEXT:    [[TMP9:%.*]] = add i128 [[INDEX1]], [[TMP8]]
 ; CHECK-NEXT:    [[DOTCAST:%.*]] = trunc i128 [[TMP9]] to i32
@@ -226,7 +226,7 @@ define float @same_exit_block_pre_inc_use1_iv64_endf32() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[DOTCAST:%.*]] = sitofp i64 [[TMP10]] to float
 ; CHECK-NEXT:    [[TMP11:%.*]] = fmul fast float 1.000000e+00, [[DOTCAST]]
@@ -294,7 +294,7 @@ define ptr @same_exit_block_pre_inc_use1_iv64_endptr() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP15]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP15]], i1 false)
 ; CHECK-NEXT:    [[TMP19:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[TMP20:%.*]] = mul i64 [[TMP19]], 5
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = getelementptr i8, ptr [[P2]], i64 [[TMP20]]
@@ -357,7 +357,7 @@ define ptr @same_exit_block_pre_inc_use1_ivptr() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP11]], i1 false)
 ; CHECK-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = getelementptr i8, ptr [[P1]], i64 [[TMP8]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -420,7 +420,7 @@ define i64 @same_exit_block_pre_inc1_use_inv_cond(i1 %cond) {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP7]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP7]], i1 false)
 ; CHECK-NEXT:    [[TMP11:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP11]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -485,7 +485,7 @@ define i64 @same_exit_block_pre_inc_use1_gep_two_indices() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -549,7 +549,7 @@ define i64 @same_exit_block_pre_inc_use1_alloca_diff_type() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -674,7 +674,7 @@ define i64 @same_exit_block_pre_inc_use3() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -739,7 +739,7 @@ define i64 @same_exit_block_pre_inc_use4() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP4]], i1 false)
 ; CHECK-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP8]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -801,7 +801,7 @@ define i64 @same_exit_block_post_inc_use() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -861,7 +861,7 @@ define ptr @same_exit_block_post_inc_use1_ivptr() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP15]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP15]], i1 false)
 ; CHECK-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[TMP9:%.*]] = add i64 [[TMP8]], 1
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = getelementptr i8, ptr [[P1]], i64 [[TMP9]]
@@ -922,7 +922,7 @@ define i64 @same_exit_block_post_inc_use2() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP17]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP17]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[TMP11:%.*]] = add i64 [[TMP10]], 1
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP11]]
@@ -987,7 +987,7 @@ define i64 @diff_exit_block_pre_inc_use1() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
@@ -1122,7 +1122,7 @@ define i64 @diff_exit_block_pre_inc_use3() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX2]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
@@ -1189,7 +1189,7 @@ define i64 @diff_exit_block_post_inc_use1() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP13]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
@@ -1258,7 +1258,7 @@ define i64 @diff_exit_block_post_inc_use2() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP17]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP17]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[TMP11:%.*]] = add i64 [[TMP10]], 1
 ; CHECK-NEXT:    [[TMP21:%.*]] = add i64 3, [[TMP11]]
@@ -1330,7 +1330,7 @@ define i64 @diff_exit_block_post_inc_use3(i64 %start) {
 ; CHECK-NEXT:    [[IND_ESCAPE:%.*]] = sub i64 [[TMP0]], 1
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP19]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP19]], i1 false)
 ; CHECK-NEXT:    [[TMP11:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[TMP12:%.*]] = add i64 [[TMP11]], 1
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 [[START]], [[TMP12]]
@@ -1401,7 +1401,7 @@ define i64 @loop_contains_safe_call() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 false)
 ; CHECK-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP9]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -1463,7 +1463,7 @@ define i64 @loop_contains_safe_div() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP5]], i1 false)
 ; CHECK-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP9]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -1526,7 +1526,7 @@ define i64 @loop_contains_load_after_early_exit(ptr dereferenceable(1024) align(
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP11:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP11]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
@@ -1594,7 +1594,7 @@ define i64 @same_exit_block_pre_inc_use1_reverse() {
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[SCALAR_PH:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP8]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP8]], i1 false)
 ; CHECK-NEXT:    [[TMP12:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = sub i64 1023, [[TMP12]]
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
@@ -1719,7 +1719,7 @@ define i64 @same_exit_block_pre_inc_use1_deref_ptrs(ptr dereferenceable(1024) %p
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br label [[LOOP_END:%.*]]
 ; CHECK:       vector.early.exit:
-; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 true)
+; CHECK-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP6]], i1 false)
 ; CHECK-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX1]], [[FIRST_ACTIVE_LANE]]
 ; CHECK-NEXT:    [[EARLY_EXIT_VALUE:%.*]] = add i64 3, [[TMP10]]
 ; CHECK-NEXT:    br label [[LOOP_END]]
diff --git a/llvm/test/Transforms/LoopVectorize/tail-folding-vectorization-factor-1.ll b/llvm/test/Transforms/LoopVectorize/tail-folding-vectorization-factor-1.ll
index 277be4666243b..0fe0cdcdb6489 100644
--- a/llvm/test/Transforms/LoopVectorize/tail-folding-vectorization-factor-1.ll
+++ b/llvm/test/Transforms/LoopVectorize/tail-folding-vectorization-factor-1.ll
@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=4 -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue -pass-remarks='loop-vectorize' -disable-output -S 2>&1 | FileCheck %s --check-prefix=CHECK-REMARKS
-; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=4 -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue -S | FileCheck %s
+; RUN: opt < %s -passes=loop-vectorize -force-vector-width=1 -force-vector-interleave=4 -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue -pass-remarks='loop-vectorize' -disable-output -S 2>&1 | FileCheck %s --check-prefix=CHECK-REMARKS
+; RUN: opt < %s -passes=loop-vectorize -force-vector-width=1 -force-vector-interleave=4 -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue -S | FileCheck %s
 
 ; These tests are to check that fold-tail procedure produces correct scalar code when
 ; loop-vectorization is only unrolling but not vectorizing.
@@ -146,39 +146,61 @@ define i64 @live_out_scalar_vf(i64 %n) {
 ; CHECK-LABEL: @live_out_scalar_vf(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[TMP0:%.*]] = add i64 [[N:%.*]], 1
-; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 16
-; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-NEXT:    br label [[VECTOR_PH:%.*]]
 ; CHECK:       vector.ph:
-; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 16
-; CHECK-NEXT:    [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]]
+; CHECK-NEXT:    [[N_RND_UP:%.*]] = add i64 [[TMP0]], 3
+; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 4
+; CHECK-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[TMP0]], 1
 ; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK:       vector.body:
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[STEP_ADD:%.*]] = add <4 x i64> [[VEC_IND]], splat (i64 4)
-; CHECK-NEXT:    [[STEP_ADD_2:%.*]] = add <4 x i64> [[STEP_ADD]], splat (i64 4)
-; CHECK-NEXT:    [[STEP_ADD_3:%.*]] = add <4 x i64> [[STEP_ADD_2]], splat (i64 4)
-; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
-; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <4 x i64> [[STEP_ADD_3]], splat (i64 4)
+; CHECK-NEXT:    [[TMP30:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[TMP27:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP17:%.*]] = add i64 [[INDEX]], 0
+; CHECK-NEXT:    [[TMP32:%.*]] = add i64 [[INDEX]], 1
+; CHECK-NEXT:    [[TMP23:%.*]] = add i64 [[INDEX]], 2
+; CHECK-NEXT:    [[TMP27]] = add i64 [[INDEX]], 3
+; CHECK-NEXT:    [[TMP22:%.*]] = icmp ugt i64 [[TMP17]], [[TRIP_COUNT_MINUS_1]]
+; CHECK-NEXT:    [[TMP26:%.*]] = icmp ugt i64 [[TMP32]], [[TRIP_COUNT_MINUS_1]]
+; CHECK-NEXT:    [[TMP33:%.*]] = icmp ugt i64 [[TMP23]], [[TRIP_COUNT_MINUS_1]]
+; CHECK-NEXT:    [[TMP34:%.*]] = icmp ugt i64 [[TMP27]], [[TRIP_COUNT_MINUS_1]]
+; CHECK-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 4
 ; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[TMP5]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
 ; CHECK:       middle.block:
-; CHECK-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <4 x i64> [[STEP_ADD_3]], i32 3
-; CHECK-NEXT:    [[VECTOR_RECUR_EXTRACT_FOR_PHI:%.*]] = extractelement <4 x i64> [[STEP_ADD_3]], i32 2
-; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]]
-; CHECK-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
-; CHECK:       scalar.ph:
-; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i64 [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-NEXT:    [[TMP36:%.*]] = icmp eq i1 [[TMP34]], false
+; CHECK-NEXT:    [[TMP37:%.*]] = zext i1 [[TMP36]] to i64
+; CHECK-NEXT:    [[TMP6:%.*]] = add i64 3, [[TMP37]]
+; CHECK-NEXT:    [[TMP38:%.*]] = icmp eq i1 [[TMP33]], false
+; CHECK-NEXT:    [[TMP39:%.*]] = zext i1 [[TMP38]] to i64
+; CHECK-NEXT:    [[TMP7:%.*]] = add i64 2, [[TMP39]]
+; CHECK-NEXT:    [[TMP8:%.*]] = icmp ne i64 [[TMP39]], 1
+; CHECK-NEXT:    [[TMP9:%.*]] = select i1 [[TMP8]], i64 [[TMP7]], i64 [[TMP6]]
+; CHECK-NEXT:    [[TMP18:%.*]] = icmp eq i1 [[TMP26]], false
+; CHECK-NEXT:    [[TMP40:%.*]] = zext i1 [[TMP18]] to i64
+; CHECK-NEXT:    [[TMP10:%.*]] = add i64 1, [[TMP40]]
+; CHECK-NEXT:    [[TMP11:%.*]] = icmp ne i64 [[TMP40]], 1
+; CHECK-NEXT:    [[TMP12:%.*]] = select i1 [[TMP11]], i64 [[TMP10]], i64 [[TMP9]]
+; CHECK-NEXT:    [[TMP41:%.*]] = icmp eq i1 [[TMP22]], false
+; CHECK-NEXT:    [[FIRST_INACTIVE_LANE3:%.*]] = zext i1 [[TMP41]] to i64
+; CHECK-NEXT:    [[TMP13:%.*]] = add i64 0, [[FIRST_INACTIVE_LANE3]]
+; CHECK-NEXT:    [[TMP14:%.*]] = icmp ne i64 [[FIRST_INACTIVE_LANE3]], 1
+; CHECK-NEXT:    [[TMP15:%.*]] = select i1 [[TMP14]], i64 [[TMP13]], i64 [[TMP12]]
+; CHECK-NEXT:    [[LAST_ACTIVE_LANE:%.*]] = sub i64 [[TMP15]], 1
+; CHECK-NEXT:    [[TMP16:%.*]] = sub i64 [[LAST_ACTIVE_LANE]], 1
+; CHECK-NEXT:    [[TMP42:%.*]] = sub i64 [[TMP16]], 1
+; CHECK-NEXT:    [[TMP20:%.*]] = icmp uge i64 [[TMP16]], 1
+; CHECK-NEXT:    [[TMP21:%.*]] = select i1 [[TMP20]], i64 [[TMP32]], i64 [[TMP17]]
+; CHECK-NEXT:    [[TMP43:%.*]] = sub i64 [[TMP16]], 2
+; CHECK-NEXT:    [[TMP24:%.*]] = icmp uge i64 [[TMP16]], 2
+; CHECK-NEXT:    [[TMP25:%.*]] = select i1 [[TMP24]], i64 [[TMP23]], i64 [[TMP21]]
+; CHECK-NEXT:    [[TMP35:%.*]] = sub i64 [[TMP16]], 3
+; CHECK-NEXT:    [[TMP28:%.*]] = icmp uge i64 [[TMP16]], 3
+; CHECK-NEXT:    [[TMP29:%.*]] = select i1 [[TMP28]], i64 [[TMP27]], i64 [[TMP25]]
+; CHECK-NEXT:    [[TMP31:%.*]] = icmp eq i64 [[LAST_ACTIVE_LANE]], 0
+; CHECK-NEXT:    [[TMP19:%.*]] = select i1 [[TMP31]], i64 [[TMP30]], i64 [[TMP29]]
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
-; CHECK-NEXT:    [[EXITVAL:%.*]] = phi i64 [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[IV]], [[LOOP]] ]
-; CHECK-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
-; CHECK-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV]], [[N]]
-; CHECK-NEXT:    br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP5:![0-9]+]]
 ; CHECK:       exit:
-; CHECK-NEXT:    [[TMP19:%.*]] = phi i64 [ [[EXITVAL]], [[LOOP]] ], [ [[VECTOR_RECUR_EXTRACT_FOR_PHI]], [[MIDDLE_BLOCK]] ]
 ; CHECK-NEXT:    ret i64 [[TMP19]]
 ;
 entry:
diff --git a/llvm/test/Transforms/LoopVectorize/use-scalar-epilogue-if-tp-fails.ll b/llvm/test/Transforms/LoopVectorize/use-scalar-epilogue-if-tp-fails.ll
index 3b34b75a4c511..252f2942452b4 100644
--- a/llvm/test/Transforms/LoopVectorize/use-scalar-epilogue-if-tp-fails.ll
+++ b/llvm/test/Transforms/LoopVectorize/use-scalar-epilogue-if-tp-fails.ll
@@ -1,5 +1,5 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -S -passes=loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue < %s | FileCheck %s
+; RUN: opt -S -passes=loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue < %s | FileCheck --check-prefix=FORCED-TF %s
 ; RUN: opt -S -passes=loop-vectorize < %s | FileCheck %s
 
 ; This tests should produce the same result as with default options, and when tail folding
@@ -13,6 +13,24 @@
 target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
 
 define void @basic_loop(ptr nocapture readonly %ptr, i32 %size, ptr %pos) {
+; FORCED-TF-LABEL: @basic_loop(
+; FORCED-TF-NEXT:  header:
+; FORCED-TF-NEXT:    [[PTR0:%.*]] = load ptr, ptr [[POS:%.*]], align 4
+; FORCED-TF-NEXT:    br label [[BODY:%.*]]
+; FORCED-TF:       body:
+; FORCED-TF-NEXT:    [[DEC66:%.*]] = phi i32 [ [[DEC:%.*]], [[BODY]] ], [ [[SIZE:%.*]], [[HEADER:%.*]] ]
+; FORCED-TF-NEXT:    [[BUFF:%.*]] = phi ptr [ [[INCDEC_PTR:%.*]], [[BODY]] ], [ [[PTR:%.*]], [[HEADER]] ]
+; FORCED-TF-NEXT:    [[INCDEC_PTR]] = getelementptr inbounds i8, ptr [[BUFF]], i32 1
+; FORCED-TF-NEXT:    [[DEC]] = add nsw i32 [[DEC66]], -1
+; FORCED-TF-NEXT:    [[TMP0:%.*]] = load i8, ptr [[INCDEC_PTR]], align 1
+; FORCED-TF-NEXT:    store i8 [[TMP0]], ptr [[BUFF]], align 1
+; FORCED-TF-NEXT:    [[TOBOOL11:%.*]] = icmp eq i32 [[DEC]], 0
+; FORCED-TF-NEXT:    br i1 [[TOBOOL11]], label [[END:%.*]], label [[BODY]]
+; FORCED-TF:       end:
+; FORCED-TF-NEXT:    [[INCDEC_PTR_LCSSA:%.*]] = phi ptr [ [[INCDEC_PTR]], [[BODY]] ]
+; FORCED-TF-NEXT:    store ptr [[INCDEC_PTR_LCSSA]], ptr [[POS]], align 4
+; FORCED-TF-NEXT:    ret void
+;
 ; CHECK-LABEL: @basic_loop(
 ; CHECK-NEXT:  header:
 ; CHECK-NEXT:    [[PTR0:%.*]] = load ptr, ptr [[POS:%.*]], align 4
@@ -21,36 +39,36 @@ define void @basic_loop(ptr nocapture readonly %ptr, i32 %size, ptr %pos) {
 ; CHECK:       vector.ph:
 ; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i32 [[SIZE]], 4
 ; CHECK-NEXT:    [[N_VEC:%.*]] = sub i32 [[SIZE]], [[N_MOD_VF]]
-; CHECK-NEXT:    [[IND_END:%.*]] = sub i32 [[SIZE]], [[N_VEC]]
-; CHECK-NEXT:    [[IND_END1:%.*]] = getelementptr i8, ptr [[PTR:%.*]], i32 [[N_VEC]]
+; CHECK-NEXT:    [[TMP0:%.*]] = sub i32 [[SIZE]], [[N_VEC]]
+; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr i8, ptr [[PTR:%.*]], i32 [[N_VEC]]
 ; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK:       vector.body:
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-NEXT:    [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[PTR]], i32 [[INDEX]]
-; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP]], i32 1
-; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr [[TMP1]], align 1
+; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP]], i32 1
+; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr [[TMP2]], align 1
 ; CHECK-NEXT:    store <4 x i8> [[WIDE_LOAD]], ptr [[NEXT_GEP]], align 1
 ; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
-; CHECK-NEXT:    [[TMP4:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-NEXT:    br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-NEXT:    br i1 [[TMP3]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i32 [[SIZE]], [[N_VEC]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label [[END:%.*]], label [[SCALAR_PH]]
 ; CHECK:       scalar.ph:
-; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i32 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[SIZE]], [[HEADER:%.*]] ]
-; CHECK-NEXT:    [[BC_RESUME_VAL2:%.*]] = phi ptr [ [[IND_END1]], [[MIDDLE_BLOCK]] ], [ [[PTR]], [[HEADER]] ]
+; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i32 [ [[TMP0]], [[MIDDLE_BLOCK]] ], [ [[SIZE]], [[HEADER:%.*]] ]
+; CHECK-NEXT:    [[BC_RESUME_VAL1:%.*]] = phi ptr [ [[TMP1]], [[MIDDLE_BLOCK]] ], [ [[PTR]], [[HEADER]] ]
 ; CHECK-NEXT:    br label [[BODY:%.*]]
 ; CHECK:       body:
 ; CHECK-NEXT:    [[DEC66:%.*]] = phi i32 [ [[DEC:%.*]], [[BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
-; CHECK-NEXT:    [[BUFF:%.*]] = phi ptr [ [[INCDEC_PTR:%.*]], [[BODY]] ], [ [[BC_RESUME_VAL2]], [[SCALAR_PH]] ]
+; CHECK-NEXT:    [[BUFF:%.*]] = phi ptr [ [[INCDEC_PTR:%.*]], [[BODY]] ], [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ]
 ; CHECK-NEXT:    [[INCDEC_PTR]] = getelementptr inbounds i8, ptr [[BUFF]], i32 1
 ; CHECK-NEXT:    [[DEC]] = add nsw i32 [[DEC66]], -1
-; CHECK-NEXT:    [[TMP5:%.*]] = load i8, ptr [[INCDEC_PTR]], align 1
-; CHECK-NEXT:    store i8 [[TMP5]], ptr [[BUFF]], align 1
+; CHECK-NEXT:    [[TMP4:%.*]] = load i8, ptr [[INCDEC_PTR]], align 1
+; CHECK-NEXT:    store i8 [[TMP4]], ptr [[BUFF]], align 1
 ; CHECK-NEXT:    [[TOBOOL11:%.*]] = icmp eq i32 [[DEC]], 0
 ; CHECK-NEXT:    br i1 [[TOBOOL11]], label [[END]], label [[BODY]], !llvm.loop [[LOOP3:![0-9]+]]
 ; CHECK:       end:
-; CHECK-NEXT:    [[INCDEC_PTR_LCSSA:%.*]] = phi ptr [ [[INCDEC_PTR]], [[BODY]] ], [ [[IND_END1]], [[MIDDLE_BLOCK]] ]
+; CHECK-NEXT:    [[INCDEC_PTR_LCSSA:%.*]] = phi ptr [ [[INCDEC_PTR]], [[BODY]] ], [ [[TMP1]], [[MIDDLE_BLOCK]] ]
 ; CHECK-NEXT:    store ptr [[INCDEC_PTR_LCSSA]], ptr [[POS]], align 4
 ; CHECK-NEXT:    ret void
 ;
@@ -74,45 +92,162 @@ end:
 }
 
 define void @metadata(ptr nocapture readonly %ptr, i32 %size, ptr %pos) {
+; FORCED-TF-LABEL: @metadata(
+; FORCED-TF-NEXT:  header:
+; FORCED-TF-NEXT:    [[PTR0:%.*]] = load ptr, ptr [[POS:%.*]], align 4
+; FORCED-TF-NEXT:    br label [[VECTOR_PH:%.*]]
+; FORCED-TF:       vector.ph:
+; FORCED-TF-NEXT:    [[N_RND_UP:%.*]] = add i32 [[SIZE:%.*]], 3
+; FORCED-TF-NEXT:    [[N_MOD_VF:%.*]] = urem i32 [[N_RND_UP]], 4
+; FORCED-TF-NEXT:    [[N_VEC:%.*]] = sub i32 [[N_RND_UP]], [[N_MOD_VF]]
+; FORCED-TF-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i32 [[SIZE]], 1
+; FORCED-TF-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i32> poison, i32 [[TRIP_COUNT_MINUS_1]], i64 0
+; FORCED-TF-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT]], <4 x i32> poison, <4 x i32> zeroinitializer
+; FORCED-TF-NEXT:    br label [[VECTOR_BODY:%.*]]
+; FORCED-TF:       vector.body:
+; FORCED-TF-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_STORE_CONTINUE11:%.*]] ]
+; FORCED-TF-NEXT:    [[TMP0:%.*]] = add i32 [[INDEX]], 0
+; FORCED-TF-NEXT:    [[TMP1:%.*]] = add i32 [[INDEX]], 1
+; FORCED-TF-NEXT:    [[TMP2:%.*]] = add i32 [[INDEX]], 2
+; FORCED-TF-NEXT:    [[TMP3:%.*]] = add i32 [[INDEX]], 3
+; FORCED-TF-NEXT:    [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[PTR:%.*]], i32 [[TMP0]]
+; FORCED-TF-NEXT:    [[NEXT_GEP1:%.*]] = getelementptr i8, ptr [[PTR]], i32 [[TMP1]]
+; FORCED-TF-NEXT:    [[NEXT_GEP2:%.*]] = getelementptr i8, ptr [[PTR]], i32 [[TMP2]]
+; FORCED-TF-NEXT:    [[NEXT_GEP3:%.*]] = getelementptr i8, ptr [[PTR]], i32 [[TMP3]]
+; FORCED-TF-NEXT:    [[TMP4:%.*]] = insertelement <4 x ptr> poison, ptr [[NEXT_GEP]], i32 0
+; FORCED-TF-NEXT:    [[TMP5:%.*]] = insertelement <4 x ptr> [[TMP4]], ptr [[NEXT_GEP1]], i32 1
+; FORCED-TF-NEXT:    [[TMP6:%.*]] = insertelement <4 x ptr> [[TMP5]], ptr [[NEXT_GEP2]], i32 2
+; FORCED-TF-NEXT:    [[TMP7:%.*]] = insertelement <4 x ptr> [[TMP6]], ptr [[NEXT_GEP3]], i32 3
+; FORCED-TF-NEXT:    [[BROADCAST_SPLATINSERT4:%.*]] = insertelement <4 x i32> poison, i32 [[INDEX]], i64 0
+; FORCED-TF-NEXT:    [[BROADCAST_SPLAT5:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT4]], <4 x i32> poison, <4 x i32> zeroinitializer
+; FORCED-TF-NEXT:    [[VEC_IV:%.*]] = add <4 x i32> [[BROADCAST_SPLAT5]], <i32 0, i32 1, i32 2, i32 3>
+; FORCED-TF-NEXT:    [[TMP8:%.*]] = icmp ule <4 x i32> [[VEC_IV]], [[BROADCAST_SPLAT]]
+; FORCED-TF-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP]], i32 1
+; FORCED-TF-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP1]], i32 1
+; FORCED-TF-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP2]], i32 1
+; FORCED-TF-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP3]], i32 1
+; FORCED-TF-NEXT:    [[TMP13:%.*]] = insertelement <4 x ptr> poison, ptr [[TMP9]], i32 0
+; FORCED-TF-NEXT:    [[TMP14:%.*]] = insertelement <4 x ptr> [[TMP13]], ptr [[TMP10]], i32 1
+; FORCED-TF-NEXT:    [[TMP15:%.*]] = insertelement <4 x ptr> [[TMP14]], ptr [[TMP11]], i32 2
+; FORCED-TF-NEXT:    [[TMP16:%.*]] = insertelement <4 x ptr> [[TMP15]], ptr [[TMP12]], i32 3
+; FORCED-TF-NEXT:    [[TMP17:%.*]] = extractelement <4 x i1> [[TMP8]], i32 0
+; FORCED-TF-NEXT:    br i1 [[TMP17]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
+; FORCED-TF:       pred.store.if:
+; FORCED-TF-NEXT:    [[TMP18:%.*]] = load i8, ptr [[TMP9]], align 1
+; FORCED-TF-NEXT:    store i8 [[TMP18]], ptr [[NEXT_GEP]], align 1
+; FORCED-TF-NEXT:    br label [[PRED_STORE_CONTINUE]]
+; FORCED-TF:       pred.store.continue:
+; FORCED-TF-NEXT:    [[TMP19:%.*]] = extractelement <4 x i1> [[TMP8]], i32 1
+; FORCED-TF-NEXT:    br i1 [[TMP19]], label [[PRED_STORE_IF6:%.*]], label [[PRED_STORE_CONTINUE7:%.*]]
+; FORCED-TF:       pred.store.if6:
+; FORCED-TF-NEXT:    [[TMP20:%.*]] = load i8, ptr [[TMP10]], align 1
+; FORCED-TF-NEXT:    store i8 [[TMP20]], ptr [[NEXT_GEP1]], align 1
+; FORCED-TF-NEXT:    br label [[PRED_STORE_CONTINUE7]]
+; FORCED-TF:       pred.store.continue7:
+; FORCED-TF-NEXT:    [[TMP21:%.*]] = extractelement <4 x i1> [[TMP8]], i32 2
+; FORCED-TF-NEXT:    br i1 [[TMP21]], label [[PRED_STORE_IF8:%.*]], label [[PRED_STORE_CONTINUE9:%.*]]
+; FORCED-TF:       pred.store.if8:
+; FORCED-TF-NEXT:    [[TMP22:%.*]] = load i8, ptr [[TMP11]], align 1
+; FORCED-TF-NEXT:    store i8 [[TMP22]], ptr [[NEXT_GEP2]], align 1
+; FORCED-TF-NEXT:    br label [[PRED_STORE_CONTINUE9]]
+; FORCED-TF:       pred.store.continue9:
+; FORCED-TF-NEXT:    [[TMP23:%.*]] = extractelement <4 x i1> [[TMP8]], i32 3
+; FORCED-TF-NEXT:    br i1 [[TMP23]], label [[PRED_STORE_IF10:%.*]], label [[PRED_STORE_CONTINUE11]]
+; FORCED-TF:       pred.store.if10:
+; FORCED-TF-NEXT:    [[TMP24:%.*]] = load i8, ptr [[TMP12]], align 1
+; FORCED-TF-NEXT:    store i8 [[TMP24]], ptr [[NEXT_GEP3]], align 1
+; FORCED-TF-NEXT:    br label [[PRED_STORE_CONTINUE11]]
+; FORCED-TF:       pred.store.continue11:
+; FORCED-TF-NEXT:    [[INDEX_NEXT]] = add i32 [[INDEX]], 4
+; FORCED-TF-NEXT:    [[TMP25:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
+; FORCED-TF-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; FORCED-TF:       middle.block:
+; FORCED-TF-NEXT:    [[TMP26:%.*]] = xor <4 x i1> [[TMP8]], splat (i1 true)
+; FORCED-TF-NEXT:    [[TMP27:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP26]], i1 false)
+; FORCED-TF-NEXT:    [[TMP28:%.*]] = sub i64 [[TMP27]], 1
+; FORCED-TF-NEXT:    [[TMP29:%.*]] = extractelement <4 x ptr> [[TMP16]], i64 [[TMP28]]
+; FORCED-TF-NEXT:    br label [[END:%.*]]
+; FORCED-TF:       end:
+; FORCED-TF-NEXT:    store ptr [[TMP29]], ptr [[POS]], align 4
+; FORCED-TF-NEXT:    ret void
+;
 ; CHECK-LABEL: @metadata(
 ; CHECK-NEXT:  header:
 ; CHECK-NEXT:    [[PTR0:%.*]] = load ptr, ptr [[POS:%.*]], align 4
-; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[SIZE:%.*]], 4
-; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-NEXT:    br label [[VECTOR_PH:%.*]]
 ; CHECK:       vector.ph:
-; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i32 [[SIZE]], 4
-; CHECK-NEXT:    [[N_VEC:%.*]] = sub i32 [[SIZE]], [[N_MOD_VF]]
-; CHECK-NEXT:    [[IND_END:%.*]] = sub i32 [[SIZE]], [[N_VEC]]
-; CHECK-NEXT:    [[IND_END1:%.*]] = getelementptr i8, ptr [[PTR:%.*]], i32 [[N_VEC]]
+; CHECK-NEXT:    [[N_RND_UP:%.*]] = add i32 [[SIZE:%.*]], 3
+; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i32 [[N_RND_UP]], 4
+; CHECK-NEXT:    [[N_VEC:%.*]] = sub i32 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i32 [[SIZE]], 1
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i32> poison, i32 [[TRIP_COUNT_MINUS_1]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT]], <4 x i32> poison, <4 x i32> zeroinitializer
 ; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK:       vector.body:
-; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[PTR]], i32 [[INDEX]]
-; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP]], i32 1
-; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr [[TMP1]], align 1
-; CHECK-NEXT:    store <4 x i8> [[WIDE_LOAD]], ptr [[NEXT_GEP]], align 1
-; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
-; CHECK-NEXT:    [[TMP4:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-NEXT:    br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_STORE_CONTINUE11:%.*]] ]
+; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[INDEX]], 0
+; CHECK-NEXT:    [[TMP1:%.*]] = add i32 [[INDEX]], 1
+; CHECK-NEXT:    [[TMP2:%.*]] = add i32 [[INDEX]], 2
+; CHECK-NEXT:    [[TMP3:%.*]] = add i32 [[INDEX]], 3
+; CHECK-NEXT:    [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[PTR:%.*]], i32 [[TMP0]]
+; CHECK-NEXT:    [[NEXT_GEP1:%.*]] = getelementptr i8, ptr [[PTR]], i32 [[TMP1]]
+; CHECK-NEXT:    [[NEXT_GEP2:%.*]] = getelementptr i8, ptr [[PTR]], i32 [[TMP2]]
+; CHECK-NEXT:    [[NEXT_GEP3:%.*]] = getelementptr i8, ptr [[PTR]], i32 [[TMP3]]
+; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x ptr> poison, ptr [[NEXT_GEP]], i32 0
+; CHECK-NEXT:    [[TMP5:%.*]] = insertelement <4 x ptr> [[TMP4]], ptr [[NEXT_GEP1]], i32 1
+; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x ptr> [[TMP5]], ptr [[NEXT_GEP2]], i32 2
+; CHECK-NEXT:    [[TMP7:%.*]] = insertelement <4 x ptr> [[TMP6]], ptr [[NEXT_GEP3]], i32 3
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT4:%.*]] = insertelement <4 x i32> poison, i32 [[INDEX]], i64 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT5:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT4]], <4 x i32> poison, <4 x i32> zeroinitializer
+; CHECK-NEXT:    [[VEC_IV:%.*]] = add <4 x i32> [[BROADCAST_SPLAT5]], <i32 0, i32 1, i32 2, i32 3>
+; CHECK-NEXT:    [[TMP8:%.*]] = icmp ule <4 x i32> [[VEC_IV]], [[BROADCAST_SPLAT]]
+; CHECK-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP]], i32 1
+; CHECK-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP1]], i32 1
+; CHECK-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP2]], i32 1
+; CHECK-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[NEXT_GEP3]], i32 1
+; CHECK-NEXT:    [[TMP13:%.*]] = insertelement <4 x ptr> poison, ptr [[TMP9]], i32 0
+; CHECK-NEXT:    [[TMP14:%.*]] = insertelement <4 x ptr> [[TMP13]], ptr [[TMP10]], i32 1
+; CHECK-NEXT:    [[TMP15:%.*]] = insertelement <4 x ptr> [[TMP14]], ptr [[TMP11]], i32 2
+; CHECK-NEXT:    [[TMP16:%.*]] = insertelement <4 x ptr> [[TMP15]], ptr [[TMP12]], i32 3
+; CHECK-NEXT:    [[TMP17:%.*]] = extractelement <4 x i1> [[TMP8]], i32 0
+; CHECK-NEXT:    br i1 [[TMP17]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
+; CHECK:       pred.store.if:
+; CHECK-NEXT:    [[TMP18:%.*]] = load i8, ptr [[TMP9]], align 1
+; CHECK-NEXT:    store i8 [[TMP18]], ptr [[NEXT_GEP]], align 1
+; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE]]
+; CHECK:       pred.store.continue:
+; CHECK-NEXT:    [[TMP19:%.*]] = extractelement <4 x i1> [[TMP8]], i32 1
+; CHECK-NEXT:    br i1 [[TMP19]], label [[PRED_STORE_IF6:%.*]], label [[PRED_STORE_CONTINUE7:%.*]]
+; CHECK:       pred.store.if6:
+; CHECK-NEXT:    [[TMP20:%.*]] = load i8, ptr [[TMP10]], align 1
+; CHECK-NEXT:    store i8 [[TMP20]], ptr [[NEXT_GEP1]], align 1
+; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE7]]
+; CHECK:       pred.store.continue7:
+; CHECK-NEXT:    [[TMP21:%.*]] = extractelement <4 x i1> [[TMP8]], i32 2
+; CHECK-NEXT:    br i1 [[TMP21]], label [[PRED_STORE_IF8:%.*]], label [[PRED_STORE_CONTINUE9:%.*]]
+; CHECK:       pred.store.if8:
+; CHECK-NEXT:    [[TMP22:%.*]] = load i8, ptr [[TMP11]], align 1
+; CHECK-NEXT:    store i8 [[TMP22]], ptr [[NEXT_GEP2]], align 1
+; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE9]]
+; CHECK:       pred.store.continue9:
+; CHECK-NEXT:    [[TMP23:%.*]] = extractelement <4 x i1> [[TMP8]], i32 3
+; CHECK-NEXT:    br i1 [[TMP23]], label [[PRED_STORE_IF10:%.*]], label [[PRED_STORE_CONTINUE11]]
+; CHECK:       pred.store.if10:
+; CHECK-NEXT:    [[TMP24:%.*]] = load i8, ptr [[TMP12]], align 1
+; CHECK-NEXT:    store i8 [[TMP24]], ptr [[NEXT_GEP3]], align 1
+; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE11]]
+; CHECK:       pred.store.continue11:
+; CHECK-NEXT:    [[INDEX_NEXT]] = add i32 [[INDEX]], 4
+; CHECK-NEXT:    [[TMP25:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
 ; CHECK:       middle.block:
-; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i32 [[SIZE]], [[N_VEC]]
-; CHECK-NEXT:    br i1 [[CMP_N]], label [[END:%.*]], label [[SCALAR_PH]]
-; CHECK:       scalar.ph:
-; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i32 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[SIZE]], [[HEADER:%.*]] ]
-; CHECK-NEXT:    [[BC_RESUME_VAL2:%.*]] = phi ptr [ [[IND_END1]], [[MIDDLE_BLOCK]] ], [ [[PTR]], [[HEADER]] ]
-; CHECK-NEXT:    br label [[BODY:%.*]]
-; CHECK:       body:
-; CHECK-NEXT:    [[DEC66:%.*]] = phi i32 [ [[DEC:%.*]], [[BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
-; CHECK-NEXT:    [[BUFF:%.*]] = phi ptr [ [[INCDEC_PTR:%.*]], [[BODY]] ], [ [[BC_RESUME_VAL2]], [[SCALAR_PH]] ]
-; CHECK-NEXT:    [[INCDEC_PTR]] = getelementptr inbounds i8, ptr [[BUFF]], i32 1
-; CHECK-NEXT:    [[DEC]] = add nsw i32 [[DEC66]], -1
-; CHECK-NEXT:    [[TMP5:%.*]] = load i8, ptr [[INCDEC_PTR]], align 1
-; CHECK-NEXT:    store i8 [[TMP5]], ptr [[BUFF]], align 1
-; CHECK-NEXT:    [[TOBOOL11:%.*]] = icmp eq i32 [[DEC]], 0
-; CHECK-NEXT:    br i1 [[TOBOOL11]], label [[END]], label [[BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; CHECK-NEXT:    [[TMP26:%.*]] = xor <4 x i1> [[TMP8]], splat (i1 true)
+; CHECK-NEXT:    [[TMP27:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v4i1(<4 x i1> [[TMP26]], i1 false)
+; CHECK-NEXT:    [[TMP28:%.*]] = sub i64 [[TMP27]], 1
+; CHECK-NEXT:    [[TMP29:%.*]] = extractelement <4 x ptr> [[TMP16]], i64 [[TMP28]]
+; CHECK-NEXT:    br label [[END:%.*]]
 ; CHECK:       end:
-; CHECK-NEXT:    [[INCDEC_PTR_LCSSA:%.*]] = phi ptr [ [[INCDEC_PTR]], [[BODY]] ], [ [[IND_END1]], [[MIDDLE_BLOCK]] ]
-; CHECK-NEXT:    store ptr [[INCDEC_PTR_LCSSA]], ptr [[POS]], align 4
+; CHECK-NEXT:    store ptr [[TMP29]], ptr [[POS]], align 4
 ; CHECK-NEXT:    ret void
 ;
 header:
diff --git a/llvm/test/Transforms/LoopVectorize/vector-loop-backedge-elimination-early-exit.ll b/llvm/test/Transforms/LoopVectorize/vector-loop-backedge-elimination-early-exit.ll
index 8da1dca52e87b..ef4d5c6d66700 100644
--- a/llvm/test/Transforms/LoopVectorize/vector-loop-backedge-elimination-early-exit.ll
+++ b/llvm/test/Transforms/LoopVectorize/vector-loop-backedge-elimination-early-exit.ll
@@ -127,7 +127,7 @@ define i64 @test_early_exit_max_tc_less_than_16_with_iv_used_outside(ptr derefer
 ; VF8UF1:       [[MIDDLE_BLOCK]]:
 ; VF8UF1-NEXT:    br label %[[EXIT:.*]]
 ; VF8UF1:       [[VECTOR_EARLY_EXIT]]:
-; VF8UF1-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP3]], i1 true)
+; VF8UF1-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP3]], i1 false)
 ; VF8UF1-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX]], [[FIRST_ACTIVE_LANE]]
 ; VF8UF1-NEXT:    br label %[[EXIT]]
 ; VF8UF1:       [[EXIT]]:
@@ -156,9 +156,9 @@ define i64 @test_early_exit_max_tc_less_than_16_with_iv_used_outside(ptr derefer
 ; VF8UF2:       [[MIDDLE_BLOCK]]:
 ; VF8UF2-NEXT:    br label %[[EXIT:.*]]
 ; VF8UF2:       [[VECTOR_EARLY_EXIT]]:
-; VF8UF2-NEXT:    [[TMP5:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP2]], i1 true)
+; VF8UF2-NEXT:    [[TMP5:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP2]], i1 false)
 ; VF8UF2-NEXT:    [[TMP7:%.*]] = add i64 8, [[TMP5]]
-; VF8UF2-NEXT:    [[TMP8:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP1]], i1 true)
+; VF8UF2-NEXT:    [[TMP8:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP1]], i1 false)
 ; VF8UF2-NEXT:    [[TMP9:%.*]] = add i64 0, [[TMP8]]
 ; VF8UF2-NEXT:    [[TMP10:%.*]] = icmp ne i64 [[TMP8]], 8
 ; VF8UF2-NEXT:    [[TMP11:%.*]] = select i1 [[TMP10]], i64 [[TMP9]], i64 [[TMP7]]
@@ -185,7 +185,7 @@ define i64 @test_early_exit_max_tc_less_than_16_with_iv_used_outside(ptr derefer
 ; VF16UF1:       [[MIDDLE_BLOCK]]:
 ; VF16UF1-NEXT:    br label %[[EXIT:.*]]
 ; VF16UF1:       [[VECTOR_EARLY_EXIT]]:
-; VF16UF1-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v16i1(<16 x i1> [[TMP3]], i1 true)
+; VF16UF1-NEXT:    [[FIRST_ACTIVE_LANE:%.*]] = call i64 @llvm.experimental.cttz.elts.i64.v16i1(<16 x i1> [[TMP3]], i1 false)
 ; VF16UF1-NEXT:    [[TMP5:%.*]] = add i64 0, [[FIRST_ACTIVE_LANE]]
 ; VF16UF1-NEXT:    br label %[[EXIT]]
 ; VF16UF1:       [[EXIT]]:
diff --git a/llvm/test/Transforms/PhaseOrdering/AArch64/std-find.ll b/llvm/test/Transforms/PhaseOrdering/AArch64/std-find.ll
index aea9a80ba6dd0..a727973b43511 100644
--- a/llvm/test/Transforms/PhaseOrdering/AArch64/std-find.ll
+++ b/llvm/test/Transforms/PhaseOrdering/AArch64/std-find.ll
@@ -28,7 +28,7 @@ define i64 @std_find_i16_constant_offset_with_assumptions(ptr %first.coerce, i16
 ; CHECK:       [[MIDDLE_SPLIT]]:
 ; CHECK-NEXT:    br i1 [[TMP2]], label %[[VECTOR_EARLY_EXIT:.*]], label %[[RETURN:.*]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP5:%.*]] = tail call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP0]], i1 true)
+; CHECK-NEXT:    [[TMP5:%.*]] = tail call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP0]], i1 false)
 ; CHECK-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], [[TMP5]]
 ; CHECK-NEXT:    [[TMP7:%.*]] = shl i64 [[TMP6]], 1
 ; CHECK-NEXT:    [[TMP8:%.*]] = getelementptr i8, ptr [[FIRST_COERCE]], i64 [[TMP7]]
@@ -149,13 +149,14 @@ define ptr @std_find_caller(ptr noundef %first, ptr noundef %last) {
 ; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[LOOP_HEADER_I_PREHEADER2:.*]], label %[[VECTOR_PH:.*]]
 ; CHECK:       [[VECTOR_PH]]:
 ; CHECK-NEXT:    [[XTRAITER:%.*]] = and i64 [[TMP3]], -8
-; CHECK:         [[TMP9:%.*]] = getelementptr
-; CHECK-NEXT:         br label %[[VECTOR_BODY:.*]]
+; CHECK-NEXT:    [[OFFSET_IDX:%.*]] = shl i64 [[XTRAITER]], 1
+; CHECK-NEXT:    [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[FIRST]], i64 [[OFFSET_IDX]]
+; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
 ; CHECK:       [[VECTOR_BODY]]:
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[PROL_ITER_NEXT:%.*]], %[[VECTOR_BODY]] ]
-; CHECK-NEXT:    [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 1
-; CHECK-NEXT:    [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[FIRST]], i64 [[OFFSET_IDX]]
-; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i16>, ptr [[NEXT_GEP]], align 2
+; CHECK-NEXT:    [[OFFSET_IDX1:%.*]] = shl i64 [[INDEX]], 1
+; CHECK-NEXT:    [[NEXT_GEP1:%.*]] = getelementptr i8, ptr [[FIRST]], i64 [[OFFSET_IDX1]]
+; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i16>, ptr [[NEXT_GEP1]], align 2
 ; CHECK-NEXT:    [[WIDE_LOAD_FR:%.*]] = freeze <8 x i16> [[WIDE_LOAD]]
 ; CHECK-NEXT:    [[TMP4:%.*]] = icmp eq <8 x i16> [[WIDE_LOAD_FR]], splat (i16 1)
 ; CHECK-NEXT:    [[PROL_ITER_NEXT]] = add nuw i64 [[INDEX]], 8
@@ -170,10 +171,10 @@ define ptr @std_find_caller(ptr noundef %first, ptr noundef %last) {
 ; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP3]], [[XTRAITER]]
 ; CHECK-NEXT:    br i1 [[CMP_N]], label %[[STD_FIND_GENERIC_IMPL_EXIT]], label %[[LOOP_HEADER_I_PREHEADER2]]
 ; CHECK:       [[LOOP_HEADER_I_PREHEADER2]]:
-; CHECK-NEXT:    [[PTR_IV_I_PH:%.*]] = phi ptr [ [[FIRST]], %[[LOOP_HEADER_I_PREHEADER]] ], [ [[TMP9]], %[[MIDDLE_BLOCK]] ]
+; CHECK-NEXT:    [[PTR_IV_I_PH:%.*]] = phi ptr [ [[FIRST]], %[[LOOP_HEADER_I_PREHEADER]] ], [ [[NEXT_GEP]], %[[MIDDLE_BLOCK]] ]
 ; CHECK-NEXT:    br label %[[LOOP_HEADER_I:.*]]
 ; CHECK:       [[VECTOR_EARLY_EXIT]]:
-; CHECK-NEXT:    [[TMP11:%.*]] = tail call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP4]], i1 true)
+; CHECK-NEXT:    [[TMP11:%.*]] = tail call i64 @llvm.experimental.cttz.elts.i64.v8i1(<8 x i1> [[TMP4]], i1 false)
 ; CHECK-NEXT:    [[TMP12:%.*]] = add i64 [[INDEX]], [[TMP11]]
 ; CHECK-NEXT:    [[TMP13:%.*]] = shl i64 [[TMP12]], 1
 ; CHECK-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[FIRST]], i64 [[TMP13]]