[llvm] b658a2e - [LV] Reduce register usage for scaled reductions (#133090)

via llvm-commits llvm-commits at lists.llvm.org
Fri Apr 11 06:31:12 PDT 2025


Author: Sam Tebbs
Date: 2025-04-11T14:31:08+01:00
New Revision: b658a2e74ab48fce303d009b7039fbb10482bab8

URL: https://github.com/llvm/llvm-project/commit/b658a2e74ab48fce303d009b7039fbb10482bab8
DIFF: https://github.com/llvm/llvm-project/commit/b658a2e74ab48fce303d009b7039fbb10482bab8.diff

LOG: [LV] Reduce register usage for scaled reductions (#133090)

This PR accounts for scaled reductions in `calculateRegisterUsage` to
reflect the fact that the number of lanes in their output is smaller
than the VF.

Depends on https://github.com/llvm/llvm-project/pull/126437

Added: 
    

Modified: 
    llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
    llvm/lib/Transforms/Vectorize/VPlan.cpp
    llvm/lib/Transforms/Vectorize/VPlan.h
    llvm/lib/Transforms/Vectorize/VPlanSLP.cpp
    llvm/lib/Transforms/Vectorize/VPlanValue.h
    llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product-neon.ll
    llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
    llvm/test/Transforms/LoopVectorize/AArch64/reg-usage.ll
    llvm/test/Transforms/LoopVectorize/X86/pr47437.ll

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 249e8fca4cf0a..0acca63503afa 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -4878,6 +4878,16 @@ void LoopVectorizationCostModel::collectElementTypesForWidening() {
   }
 }
 
+/// Get the VF scaling factor applied to the recipe's output, if the recipe has
+/// one.
+static unsigned getVFScaleFactor(VPRecipeBase *R) {
+  if (auto *RR = dyn_cast<VPReductionPHIRecipe>(R))
+    return RR->getVFScaleFactor();
+  if (auto *RR = dyn_cast<VPPartialReductionRecipe>(R))
+    return RR->getVFScaleFactor();
+  return 1;
+}
+
 /// Estimate the register usage for \p Plan and vectorization factors in \p VFs
 /// by calculating the highest number of values that are live at a single
 /// location as a rough estimate. Returns the register usage for each VF in \p
@@ -5032,10 +5042,19 @@ calculateRegisterUsage(VPlan &Plan, ArrayRef<ElementCount> VFs,
           // even in the scalar case.
           RegUsage[ClassID] += 1;
         } else {
+          // The output from scaled phis and scaled reductions actually has
+          // fewer lanes than the VF.
+          unsigned ScaleFactor = getVFScaleFactor(R);
+          ElementCount VF = VFs[J].divideCoefficientBy(ScaleFactor);
+          LLVM_DEBUG(if (VF != VFs[J]) {
+            dbgs() << "LV(REG): Scaled down VF from " << VFs[J] << " to " << VF
+                   << " for " << *R << "\n";
+          });
+
           for (VPValue *DefV : R->definedValues()) {
             Type *ScalarTy = TypeInfo.inferScalarType(DefV);
             unsigned ClassID = TTI.getRegisterClassForType(true, ScalarTy);
-            RegUsage[ClassID] += GetRegUsage(ScalarTy, VFs[J]);
+            RegUsage[ClassID] += GetRegUsage(ScalarTy, VF);
           }
         }
       }
@@ -9141,8 +9160,8 @@ VPRecipeBase *VPRecipeBuilder::tryToCreateWidenRecipe(
   if (isa<LoadInst>(Instr) || isa<StoreInst>(Instr))
     return tryToWidenMemory(Instr, Operands, Range);
 
-  if (getScalingForReduction(Instr))
-    return tryToCreatePartialReduction(Instr, Operands);
+  if (std::optional<unsigned> ScaleFactor = getScalingForReduction(Instr))
+    return tryToCreatePartialReduction(Instr, Operands, ScaleFactor.value());
 
   if (!shouldWiden(Instr, Range))
     return nullptr;
@@ -9166,7 +9185,8 @@ VPRecipeBase *VPRecipeBuilder::tryToCreateWidenRecipe(
 
 VPRecipeBase *
 VPRecipeBuilder::tryToCreatePartialReduction(Instruction *Reduction,
-                                             ArrayRef<VPValue *> Operands) {
+                                             ArrayRef<VPValue *> Operands,
+                                             unsigned ScaleFactor) {
   assert(Operands.size() == 2 &&
          "Unexpected number of operands for partial reduction");
 
@@ -9199,7 +9219,7 @@ VPRecipeBuilder::tryToCreatePartialReduction(Instruction *Reduction,
     BinOp = Builder.createSelect(Mask, BinOp, Zero, Reduction->getDebugLoc());
   }
   return new VPPartialReductionRecipe(ReductionOpcode, BinOp, Accumulator,
-                                      Reduction);
+                                      ScaleFactor, Reduction);
 }
 
 void LoopVectorizationPlanner::buildVPlansWithVPRecipes(ElementCount MinVF,

diff  --git a/llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h b/llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
index 334cfbad8bd7c..fd0064a34c4c9 100644
--- a/llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
+++ b/llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
@@ -178,7 +178,8 @@ class VPRecipeBuilder {
   /// Create and return a partial reduction recipe for a reduction instruction
   /// along with binary operation and reduction phi operands.
   VPRecipeBase *tryToCreatePartialReduction(Instruction *Reduction,
-                                            ArrayRef<VPValue *> Operands);
+                                            ArrayRef<VPValue *> Operands,
+                                            unsigned ScaleFactor);
 
   /// Set the recipe created for given ingredient.
   void setRecipe(Instruction *I, VPRecipeBase *R) {

diff  --git a/llvm/lib/Transforms/Vectorize/VPlan.cpp b/llvm/lib/Transforms/Vectorize/VPlan.cpp
index 9474e7a171dff..eb4394171d3be 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlan.cpp
@@ -64,11 +64,10 @@ static cl::opt<bool> PrintVPlansInDotFormat(
 #define DEBUG_TYPE "loop-vectorize"
 
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
-raw_ostream &llvm::operator<<(raw_ostream &OS, const VPValue &V) {
-  const VPInstruction *Instr = dyn_cast<VPInstruction>(&V);
-  VPSlotTracker SlotTracker(
-      (Instr && Instr->getParent()) ? Instr->getParent()->getPlan() : nullptr);
-  V.print(OS, SlotTracker);
+raw_ostream &llvm::operator<<(raw_ostream &OS, const VPRecipeBase &R) {
+  const VPBasicBlock *Parent = R.getParent();
+  VPSlotTracker SlotTracker(Parent ? Parent->getPlan() : nullptr);
+  R.print(OS, "", SlotTracker);
   return OS;
 }
 #endif

diff  --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 60c9b1cf4cdee..ce0fa9a87bb44 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -2047,6 +2047,9 @@ class VPReductionPHIRecipe : public VPHeaderPHIRecipe,
   /// Generate the phi/select nodes.
   void execute(VPTransformState &State) override;
 
+  /// Get the factor that the VF of this recipe's output should be scaled by.
+  unsigned getVFScaleFactor() const { return VFScaleFactor; }
+
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
   /// Print the recipe.
   void print(raw_ostream &O, const Twine &Indent,
@@ -2077,17 +2080,21 @@ class VPReductionPHIRecipe : public VPHeaderPHIRecipe,
 /// scalar value.
 class VPPartialReductionRecipe : public VPSingleDefRecipe {
   unsigned Opcode;
+  /// The divisor by which the VF of this recipe's output should be divided
+  /// during execution.
+  unsigned VFScaleFactor;
 
 public:
   VPPartialReductionRecipe(Instruction *ReductionInst, VPValue *Op0,
-                           VPValue *Op1)
+                           VPValue *Op1, unsigned VFScaleFactor)
       : VPPartialReductionRecipe(ReductionInst->getOpcode(), Op0, Op1,
-                                 ReductionInst) {}
+                                 VFScaleFactor, ReductionInst) {}
   VPPartialReductionRecipe(unsigned Opcode, VPValue *Op0, VPValue *Op1,
+                           unsigned VFScaleFactor,
                            Instruction *ReductionInst = nullptr)
       : VPSingleDefRecipe(VPDef::VPPartialReductionSC,
                           ArrayRef<VPValue *>({Op0, Op1}), ReductionInst),
-        Opcode(Opcode) {
+        Opcode(Opcode), VFScaleFactor(VFScaleFactor) {
     [[maybe_unused]] auto *AccumulatorRecipe =
         getOperand(1)->getDefiningRecipe();
     assert((isa<VPReductionPHIRecipe>(AccumulatorRecipe) ||
@@ -2098,7 +2105,7 @@ class VPPartialReductionRecipe : public VPSingleDefRecipe {
 
   VPPartialReductionRecipe *clone() override {
     return new VPPartialReductionRecipe(Opcode, getOperand(0), getOperand(1),
-                                        getUnderlyingInstr());
+                                        VFScaleFactor, getUnderlyingInstr());
   }
 
   VP_CLASSOF_IMPL(VPDef::VPPartialReductionSC)
@@ -2113,6 +2120,9 @@ class VPPartialReductionRecipe : public VPSingleDefRecipe {
   /// Get the binary op's opcode.
   unsigned getOpcode() const { return Opcode; }
 
+  /// Get the factor that the VF of this recipe's output should be scaled by.
+  unsigned getVFScaleFactor() const { return VFScaleFactor; }
+
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
   /// Print the recipe.
   void print(raw_ostream &O, const Twine &Indent,

diff  --git a/llvm/lib/Transforms/Vectorize/VPlanSLP.cpp b/llvm/lib/Transforms/Vectorize/VPlanSLP.cpp
index e943c7a29eb83..c4d79526721ec 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanSLP.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanSLP.cpp
@@ -516,8 +516,8 @@ VPInstruction *VPlanSlp::buildGraph(ArrayRef<VPValue *> Values) {
   auto *Inst = cast<VPInstruction>(Values[0])->getUnderlyingInstr();
   auto *VPI = new VPInstruction(Opcode, CombinedOperands, Inst->getDebugLoc());
 
-  LLVM_DEBUG(dbgs() << "Create VPInstruction " << *VPI << " "
-                    << *cast<VPInstruction>(Values[0]) << "\n");
+  LLVM_DEBUG(dbgs() << "Create VPInstruction " << *VPI << " " << Values[0]
+                    << "\n");
   addCombined(Values, VPI);
   return VPI;
 }

diff  --git a/llvm/lib/Transforms/Vectorize/VPlanValue.h b/llvm/lib/Transforms/Vectorize/VPlanValue.h
index cbae37d48cd19..ced60a30ad56e 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanValue.h
+++ b/llvm/lib/Transforms/Vectorize/VPlanValue.h
@@ -194,7 +194,7 @@ class VPValue {
 typedef DenseMap<Value *, VPValue *> Value2VPValueTy;
 typedef DenseMap<VPValue *, Value *> VPValue2ValueTy;
 
-raw_ostream &operator<<(raw_ostream &OS, const VPValue &V);
+raw_ostream &operator<<(raw_ostream &OS, const VPRecipeBase &R);
 
 /// This class augments VPValue with operands which provide the inverse def-use
 /// edges from VPValue's users to their defs.

diff  --git a/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product-neon.ll b/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product-neon.ll
index a8476dbddb3c2..e6687fe767c0a 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product-neon.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product-neon.ll
@@ -770,10 +770,10 @@ define i32 @dotp_unrolled(i32 %num_out, i64 %num_in, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-LABEL: define i32 @dotp_unrolled(
 ; CHECK-INTERLEAVED-SAME: i32 [[NUM_OUT:%.*]], i64 [[NUM_IN:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-INTERLEAVED-NEXT:  entry:
-; CHECK-INTERLEAVED-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[NUM_IN]], 16
+; CHECK-INTERLEAVED-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[NUM_IN]], 32
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
 ; CHECK-INTERLEAVED:       vector.ph:
-; CHECK-INTERLEAVED-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[NUM_IN]], 16
+; CHECK-INTERLEAVED-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[NUM_IN]], 32
 ; CHECK-INTERLEAVED-NEXT:    [[N_VEC:%.*]] = sub i64 [[NUM_IN]], [[N_MOD_VF]]
 ; CHECK-INTERLEAVED-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK-INTERLEAVED:       vector.body:
@@ -782,6 +782,10 @@ define i32 @dotp_unrolled(i32 %num_out, i64 %num_in, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE10:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE7:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI4:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE16:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI5:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE17:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI6:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE1:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI7:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE11:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INDEX]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[INDEX]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP3:%.*]] = or disjoint i64 [[INDEX]], 1
@@ -794,45 +798,81 @@ define i32 @dotp_unrolled(i32 %num_out, i64 %num_in, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 16
 ; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP12]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD8:%.*]] = load <16 x i8>, ptr [[TMP38]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP13:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD4:%.*]] = load <16 x i8>, ptr [[TMP14]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP15:%.*]] = sext <16 x i8> [[WIDE_LOAD4]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP16:%.*]] = mul nsw <16 x i32> [[TMP15]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI3]], <16 x i32> [[TMP16]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP17:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD5:%.*]] = load <16 x i8>, ptr [[TMP17]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP18:%.*]] = sext <16 x i8> [[WIDE_LOAD5]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP19:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD6:%.*]] = load <16 x i8>, ptr [[TMP19]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP20:%.*]] = sext <16 x i8> [[WIDE_LOAD6]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP21:%.*]] = mul nsw <16 x i32> [[TMP18]], [[TMP20]]
-; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE7]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI2]], <16 x i32> [[TMP21]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD8:%.*]] = load <16 x i8>, ptr [[TMP22]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP23:%.*]] = sext <16 x i8> [[WIDE_LOAD8]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD9:%.*]] = load <16 x i8>, ptr [[TMP24]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP25:%.*]] = sext <16 x i8> [[WIDE_LOAD9]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP26:%.*]] = mul nsw <16 x i32> [[TMP23]], [[TMP25]]
-; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE10]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI1]], <16 x i32> [[TMP26]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP27:%.*]] = getelementptr inbounds i8, ptr [[TMP10]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD11:%.*]] = load <16 x i8>, ptr [[TMP27]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP28:%.*]] = sext <16 x i8> [[WIDE_LOAD11]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP29:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD12:%.*]] = load <16 x i8>, ptr [[TMP29]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP30:%.*]] = sext <16 x i8> [[WIDE_LOAD12]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP31:%.*]] = mul nsw <16 x i32> [[TMP28]], [[TMP30]]
-; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE13]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP31]])
-; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
-; CHECK-INTERLEAVED-NEXT:    [[TMP32:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP32]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP14:%.*]] = sext <16 x i8> [[WIDE_LOAD8]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 16
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD9:%.*]] = load <16 x i8>, ptr [[TMP15]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD10:%.*]] = load <16 x i8>, ptr [[TMP16]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[TMP17:%.*]] = sext <16 x i8> [[WIDE_LOAD9]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP18:%.*]] = sext <16 x i8> [[WIDE_LOAD10]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP19:%.*]] = mul nsw <16 x i32> [[TMP17]], [[TMP13]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP20:%.*]] = mul nsw <16 x i32> [[TMP18]], [[TMP14]]
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE1]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI6]], <16 x i32> [[TMP19]])
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE11]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI7]], <16 x i32> [[TMP20]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 16
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD12:%.*]] = load <16 x i8>, ptr [[TMP21]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD13:%.*]] = load <16 x i8>, ptr [[TMP22]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[TMP23:%.*]] = sext <16 x i8> [[WIDE_LOAD12]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP24:%.*]] = sext <16 x i8> [[WIDE_LOAD13]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP25:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP26:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 16
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD14:%.*]] = load <16 x i8>, ptr [[TMP25]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD15:%.*]] = load <16 x i8>, ptr [[TMP26]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[TMP27:%.*]] = sext <16 x i8> [[WIDE_LOAD14]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP28:%.*]] = sext <16 x i8> [[WIDE_LOAD15]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP29:%.*]] = mul nsw <16 x i32> [[TMP23]], [[TMP27]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP30:%.*]] = mul nsw <16 x i32> [[TMP24]], [[TMP28]]
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE16]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI4]], <16 x i32> [[TMP29]])
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE17]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI5]], <16 x i32> [[TMP30]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP31:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i32 16
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD18:%.*]] = load <16 x i8>, ptr [[TMP31]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD19:%.*]] = load <16 x i8>, ptr [[TMP32]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[TMP33:%.*]] = sext <16 x i8> [[WIDE_LOAD18]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP34:%.*]] = sext <16 x i8> [[WIDE_LOAD19]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP35:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP36:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i32 16
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD20:%.*]] = load <16 x i8>, ptr [[TMP35]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD21:%.*]] = load <16 x i8>, ptr [[TMP36]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[TMP37:%.*]] = sext <16 x i8> [[WIDE_LOAD20]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP56:%.*]] = sext <16 x i8> [[WIDE_LOAD21]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP39:%.*]] = mul nsw <16 x i32> [[TMP33]], [[TMP37]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP40:%.*]] = mul nsw <16 x i32> [[TMP34]], [[TMP56]]
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE7]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI2]], <16 x i32> [[TMP39]])
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI3]], <16 x i32> [[TMP40]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP41:%.*]] = getelementptr inbounds i8, ptr [[TMP10]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP42:%.*]] = getelementptr inbounds i8, ptr [[TMP10]], i32 16
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD24:%.*]] = load <16 x i8>, ptr [[TMP41]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD25:%.*]] = load <16 x i8>, ptr [[TMP42]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[TMP43:%.*]] = sext <16 x i8> [[WIDE_LOAD24]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP44:%.*]] = sext <16 x i8> [[WIDE_LOAD25]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP45:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP46:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 16
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD26:%.*]] = load <16 x i8>, ptr [[TMP45]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD27:%.*]] = load <16 x i8>, ptr [[TMP46]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[TMP47:%.*]] = sext <16 x i8> [[WIDE_LOAD26]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP48:%.*]] = sext <16 x i8> [[WIDE_LOAD27]] to <16 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP49:%.*]] = mul nsw <16 x i32> [[TMP43]], [[TMP47]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP50:%.*]] = mul nsw <16 x i32> [[TMP44]], [[TMP48]]
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE13]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP49]])
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE10]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI1]], <16 x i32> [[TMP50]])
+; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
+; CHECK-INTERLEAVED-NEXT:    [[TMP51:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP51]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
-; CHECK-INTERLEAVED-NEXT:    [[TMP33:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE13]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP34:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE10]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP35:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE7]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP36:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
+; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add <4 x i32> [[PARTIAL_REDUCE10]], [[PARTIAL_REDUCE13]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP52:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[BIN_RDX]])
+; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX30:%.*]] = add <4 x i32> [[PARTIAL_REDUCE]], [[PARTIAL_REDUCE7]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP53:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[BIN_RDX30]])
+; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX31:%.*]] = add <4 x i32> [[PARTIAL_REDUCE17]], [[PARTIAL_REDUCE16]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP54:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[BIN_RDX31]])
+; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX32:%.*]] = add <4 x i32> [[PARTIAL_REDUCE11]], [[PARTIAL_REDUCE1]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP55:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[BIN_RDX32]])
 ; CHECK-INTERLEAVED-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[NUM_IN]], [[N_VEC]]
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-INTERLEAVED:       scalar.ph:
@@ -906,7 +946,6 @@ define i32 @dotp_unrolled(i32 %num_out, i64 %num_in, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[NUM_IN]], [[N_VEC]]
 ; CHECK-MAXBW-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-MAXBW:       scalar.ph:
-;
 entry:
   br label %for.body
 

diff  --git a/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll b/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
index bbcc6db020307..1b22523e9f5bd 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
@@ -3256,65 +3256,65 @@ define dso_local void @not_dotp_high_register_pressure(ptr %a, ptr %b, ptr %sum,
 ; CHECK-INTERLEAVED-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK-INTERLEAVED:       vector.body:
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ [[TMP0]], [[VECTOR_PH]] ], [ [[TMP64:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i32> [ [[TMP1]], [[VECTOR_PH]] ], [ [[TMP58:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI4:%.*]] = phi <4 x i32> [ [[TMP2]], [[VECTOR_PH]] ], [ [[TMP52:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI6:%.*]] = phi <4 x i32> [ [[TMP3]], [[VECTOR_PH]] ], [ [[TMP46:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI8:%.*]] = phi <4 x i32> [ [[TMP4]], [[VECTOR_PH]] ], [ [[TMP40:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI10:%.*]] = phi <4 x i32> [ [[TMP5]], [[VECTOR_PH]] ], [ [[TMP34:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI12:%.*]] = phi <4 x i32> [ [[TMP6]], [[VECTOR_PH]] ], [ [[TMP28:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI14:%.*]] = phi <4 x i32> [ [[TMP7]], [[VECTOR_PH]] ], [ [[TMP22:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i8, ptr [[A]], i64 [[INDEX]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP9]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD16:%.*]] = load <4 x i8>, ptr [[TMP10]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP13:%.*]] = zext <4 x i8> [[WIDE_LOAD16]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP15:%.*]] = shl nsw i64 [[INDEX]], 3
-; CHECK-INTERLEAVED-NEXT:    [[TMP17:%.*]] = getelementptr inbounds nuw i8, ptr [[B]], i64 [[TMP15]]
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_VEC24:%.*]] = load <32 x i8>, ptr [[TMP17]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC25:%.*]] = shufflevector <32 x i8> [[WIDE_VEC24]], <32 x i8> poison, <4 x i32> <i32 0, i32 8, i32 16, i32 24>
-; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC26:%.*]] = shufflevector <32 x i8> [[WIDE_VEC24]], <32 x i8> poison, <4 x i32> <i32 1, i32 9, i32 17, i32 25>
-; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC27:%.*]] = shufflevector <32 x i8> [[WIDE_VEC24]], <32 x i8> poison, <4 x i32> <i32 2, i32 10, i32 18, i32 26>
-; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC28:%.*]] = shufflevector <32 x i8> [[WIDE_VEC24]], <32 x i8> poison, <4 x i32> <i32 3, i32 11, i32 19, i32 27>
-; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC29:%.*]] = shufflevector <32 x i8> [[WIDE_VEC24]], <32 x i8> poison, <4 x i32> <i32 4, i32 12, i32 20, i32 28>
-; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC30:%.*]] = shufflevector <32 x i8> [[WIDE_VEC24]], <32 x i8> poison, <4 x i32> <i32 5, i32 13, i32 21, i32 29>
-; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC31:%.*]] = shufflevector <32 x i8> [[WIDE_VEC24]], <32 x i8> poison, <4 x i32> <i32 6, i32 14, i32 22, i32 30>
-; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC32:%.*]] = shufflevector <32 x i8> [[WIDE_VEC24]], <32 x i8> poison, <4 x i32> <i32 7, i32 15, i32 23, i32 31>
-; CHECK-INTERLEAVED-NEXT:    [[TMP19:%.*]] = sext <4 x i8> [[STRIDED_VEC25]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP21:%.*]] = mul nsw <4 x i32> [[TMP19]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP22]] = add <4 x i32> [[TMP21]], [[VEC_PHI14]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP25:%.*]] = sext <4 x i8> [[STRIDED_VEC26]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP27:%.*]] = mul nsw <4 x i32> [[TMP25]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP28]] = add <4 x i32> [[TMP27]], [[VEC_PHI12]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP31:%.*]] = sext <4 x i8> [[STRIDED_VEC27]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP33:%.*]] = mul nsw <4 x i32> [[TMP31]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP34]] = add <4 x i32> [[TMP33]], [[VEC_PHI10]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP37:%.*]] = sext <4 x i8> [[STRIDED_VEC28]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP39:%.*]] = mul nsw <4 x i32> [[TMP37]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP40]] = add <4 x i32> [[TMP39]], [[VEC_PHI8]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP43:%.*]] = sext <4 x i8> [[STRIDED_VEC29]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP45:%.*]] = mul nsw <4 x i32> [[TMP43]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP46]] = add <4 x i32> [[TMP45]], [[VEC_PHI6]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP49:%.*]] = sext <4 x i8> [[STRIDED_VEC30]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP51:%.*]] = mul nsw <4 x i32> [[TMP49]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP52]] = add <4 x i32> [[TMP51]], [[VEC_PHI4]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP55:%.*]] = sext <4 x i8> [[STRIDED_VEC31]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP57:%.*]] = mul nsw <4 x i32> [[TMP55]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP58]] = add <4 x i32> [[TMP57]], [[VEC_PHI2]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP61:%.*]] = sext <4 x i8> [[STRIDED_VEC32]] to <4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP63:%.*]] = mul nsw <4 x i32> [[TMP61]], [[TMP13]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP64]] = add <4 x i32> [[TMP63]], [[VEC_PHI]]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ [[TMP0]], [[VECTOR_PH]] ], [ [[TMP36:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i32> [ [[TMP1]], [[VECTOR_PH]] ], [ [[TMP33:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i32> [ [[TMP2]], [[VECTOR_PH]] ], [ [[TMP30:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i32> [ [[TMP3]], [[VECTOR_PH]] ], [ [[TMP27:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI4:%.*]] = phi <4 x i32> [ [[TMP4]], [[VECTOR_PH]] ], [ [[TMP24:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI5:%.*]] = phi <4 x i32> [ [[TMP5]], [[VECTOR_PH]] ], [ [[TMP21:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI6:%.*]] = phi <4 x i32> [ [[TMP6]], [[VECTOR_PH]] ], [ [[TMP18:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI7:%.*]] = phi <4 x i32> [ [[TMP7]], [[VECTOR_PH]] ], [ [[TMP15:%.*]], [[VECTOR_BODY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[TMP8:%.*]] = getelementptr inbounds nuw i8, ptr [[A]], i64 [[INDEX]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP8]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr [[TMP9]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = zext <4 x i8> [[WIDE_LOAD]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP11:%.*]] = shl nsw i64 [[INDEX]], 3
+; CHECK-INTERLEAVED-NEXT:    [[TMP12:%.*]] = getelementptr inbounds nuw i8, ptr [[B]], i64 [[TMP11]]
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_VEC:%.*]] = load <32 x i8>, ptr [[TMP12]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 0, i32 8, i32 16, i32 24>
+; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC8:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 1, i32 9, i32 17, i32 25>
+; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC9:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 2, i32 10, i32 18, i32 26>
+; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC10:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 3, i32 11, i32 19, i32 27>
+; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC11:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 4, i32 12, i32 20, i32 28>
+; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC12:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 5, i32 13, i32 21, i32 29>
+; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC13:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 6, i32 14, i32 22, i32 30>
+; CHECK-INTERLEAVED-NEXT:    [[STRIDED_VEC14:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 7, i32 15, i32 23, i32 31>
+; CHECK-INTERLEAVED-NEXT:    [[TMP13:%.*]] = sext <4 x i8> [[STRIDED_VEC]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP14:%.*]] = mul nsw <4 x i32> [[TMP13]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP15]] = add <4 x i32> [[TMP14]], [[VEC_PHI7]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP16:%.*]] = sext <4 x i8> [[STRIDED_VEC8]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP17:%.*]] = mul nsw <4 x i32> [[TMP16]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP18]] = add <4 x i32> [[TMP17]], [[VEC_PHI6]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP19:%.*]] = sext <4 x i8> [[STRIDED_VEC9]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP20:%.*]] = mul nsw <4 x i32> [[TMP19]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP21]] = add <4 x i32> [[TMP20]], [[VEC_PHI5]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP22:%.*]] = sext <4 x i8> [[STRIDED_VEC10]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP23:%.*]] = mul nsw <4 x i32> [[TMP22]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP24]] = add <4 x i32> [[TMP23]], [[VEC_PHI4]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP25:%.*]] = sext <4 x i8> [[STRIDED_VEC11]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP26:%.*]] = mul nsw <4 x i32> [[TMP25]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP27]] = add <4 x i32> [[TMP26]], [[VEC_PHI3]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP28:%.*]] = sext <4 x i8> [[STRIDED_VEC12]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP29:%.*]] = mul nsw <4 x i32> [[TMP28]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP30]] = add <4 x i32> [[TMP29]], [[VEC_PHI2]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP31:%.*]] = sext <4 x i8> [[STRIDED_VEC13]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP32:%.*]] = mul nsw <4 x i32> [[TMP31]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP33]] = add <4 x i32> [[TMP32]], [[VEC_PHI1]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP34:%.*]] = sext <4 x i8> [[STRIDED_VEC14]] to <4 x i32>
+; CHECK-INTERLEAVED-NEXT:    [[TMP35:%.*]] = mul nsw <4 x i32> [[TMP34]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP36]] = add <4 x i32> [[TMP35]], [[VEC_PHI]]
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
-; CHECK-INTERLEAVED-NEXT:    [[TMP66:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP66]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP41:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP37:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP37]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP41:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
-; CHECK-INTERLEAVED-NEXT:    [[TMP38:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP64]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP47:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP58]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP48:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP52]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP41:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP46]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP42:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP40]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP50:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP34]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP44:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP28]])
-; CHECK-INTERLEAVED-NEXT:    [[TMP53:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP22]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP38:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP36]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP39:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP33]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP40:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP30]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP41:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP27]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP42:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP24]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP43:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP21]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP44:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP18]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP45:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP15]])
 ; CHECK-INTERLEAVED-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]]
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[CMP_N]], label [[FOR_COND_FOR_COND_CLEANUP_CRIT_EDGE:%.*]], label [[SCALAR_PH]]
 ; CHECK-INTERLEAVED:       scalar.ph:
@@ -3419,7 +3419,6 @@ define dso_local void @not_dotp_high_register_pressure(ptr %a, ptr %b, ptr %sum,
 ; CHECK-MAXBW-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]]
 ; CHECK-MAXBW-NEXT:    br i1 [[CMP_N]], label [[FOR_COND_FOR_COND_CLEANUP_CRIT_EDGE:%.*]], label [[SCALAR_PH]]
 ; CHECK-MAXBW:       scalar.ph:
-;
 entry:
   %cmp100 = icmp sgt i32 %n, 0
   br i1 %cmp100, label %for.body.lr.ph, label %for.cond.cleanup

diff  --git a/llvm/test/Transforms/LoopVectorize/AArch64/reg-usage.ll b/llvm/test/Transforms/LoopVectorize/AArch64/reg-usage.ll
index ab12ca4254a09..2e6efec297d61 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/reg-usage.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/reg-usage.ll
@@ -68,3 +68,183 @@ loop:
 exit:
   ret void
 }
+
+define dso_local void @dotp_high_register_pressure(ptr %a, ptr %b, ptr %sum, i32 %n) #1 {
+; CHECK-LABEL: LV: Checking a loop in 'dotp_high_register_pressure' from <stdin>
+; CHECK:       LV(REG): VF = 16
+; CHECK-NEXT:  LV(REG): Found max usage: 2 item
+; CHECK-NEXT:  LV(REG): RegisterClass: Generic::ScalarRC, 3 registers
+; CHECK-NEXT:  LV(REG): RegisterClass: Generic::VectorRC, 40 registers
+; CHECK-NEXT:  LV(REG): Found invariant usage: 2 item
+entry:
+  %cmp100 = icmp sgt i32 %n, 0
+  br i1 %cmp100, label %for.body.lr.ph, label %for.cond.cleanup
+
+for.body.lr.ph:                                   ; preds = %entry
+  %arrayidx13 = getelementptr inbounds nuw i8, ptr %sum, i64 4
+  %gep.b.12 = getelementptr inbounds nuw i8, ptr %sum, i64 8
+  %arrayidx31 = getelementptr inbounds nuw i8, ptr %sum, i64 12
+  %arrayidx40 = getelementptr inbounds nuw i8, ptr %sum, i64 16
+  %arrayidx49 = getelementptr inbounds nuw i8, ptr %sum, i64 20
+  %arrayidx58 = getelementptr inbounds nuw i8, ptr %sum, i64 24
+  %arrayidx67 = getelementptr inbounds nuw i8, ptr %sum, i64 28
+  %sum.promoted = load i32, ptr %sum, align 4
+  %arrayidx13.promoted = load i32, ptr %arrayidx13, align 4
+  %gep.b.12.promoted = load i32, ptr %gep.b.12, align 4
+  %arrayidx31.promoted = load i32, ptr %arrayidx31, align 4
+  %arrayidx40.promoted = load i32, ptr %arrayidx40, align 4
+  %arrayidx49.promoted = load i32, ptr %arrayidx49, align 4
+  %arrayidx58.promoted = load i32, ptr %arrayidx58, align 4
+  %arrayidx67.promoted = load i32, ptr %arrayidx67, align 4
+  %wide.trip.count = zext nneg i32 %n to i64
+  br label %for.body
+
+for.cond.for.cond.cleanup_crit_edge:              ; preds = %for.body
+  %add.lcssa = phi i32 [ %add.1, %for.body ]
+  %add.2.lcssa = phi i32 [ %add.2, %for.body ]
+  %add.3.lcssa = phi i32 [ %add.3, %for.body ]
+  %add.4.lcssa = phi i32 [ %add.4, %for.body ]
+  %add.5.lcssa = phi i32 [ %add.5, %for.body ]
+  %add.6.lcssa = phi i32 [ %add.6, %for.body ]
+  %add.7.lcssa = phi i32 [ %add.7, %for.body ]
+  %add.8.lcssa = phi i32 [ %add.8, %for.body ]
+  store i32 %add.lcssa, ptr %sum, align 4
+  store i32 %add.2.lcssa, ptr %arrayidx13, align 4
+  store i32 %add.3.lcssa, ptr %gep.b.12, align 4
+  store i32 %add.4.lcssa, ptr %arrayidx31, align 4
+  store i32 %add.5.lcssa, ptr %arrayidx40, align 4
+  store i32 %add.6.lcssa, ptr %arrayidx49, align 4
+  store i32 %add.7.lcssa, ptr %arrayidx58, align 4
+  store i32 %add.8.lcssa, ptr %arrayidx67, align 4
+  br label %for.cond.cleanup
+
+for.cond.cleanup:                                 ; preds = %for.cond.for.cond.cleanup_crit_edge, %entry
+  ret void
+
+for.body:                                         ; preds = %for.body.lr.ph, %for.body
+  %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
+  %0 = phi i32 [ %arrayidx67.promoted, %for.body.lr.ph ], [ %add.8, %for.body ]
+  %1 = phi i32 [ %arrayidx58.promoted, %for.body.lr.ph ], [ %add.7, %for.body ]
+  %2 = phi i32 [ %arrayidx49.promoted, %for.body.lr.ph ], [ %add.6, %for.body ]
+  %3 = phi i32 [ %arrayidx40.promoted, %for.body.lr.ph ], [ %add.5, %for.body ]
+  %4 = phi i32 [ %arrayidx31.promoted, %for.body.lr.ph ], [ %add.4, %for.body ]
+  %5 = phi i32 [ %gep.b.12.promoted, %for.body.lr.ph ], [ %add.3, %for.body ]
+  %6 = phi i32 [ %arrayidx13.promoted, %for.body.lr.ph ], [ %add.2, %for.body ]
+  %7 = phi i32 [ %sum.promoted, %for.body.lr.ph ], [ %add.1, %for.body ]
+  %arrayidx = getelementptr inbounds nuw i8, ptr %a, i64 %indvars.iv
+  %load.a = load i8, ptr %arrayidx, align 1
+  %ext.a = zext i8 %load.a to i32
+  %9 = shl nsw i64 %indvars.iv, 3
+  %gep.b.1 = getelementptr inbounds nuw i8, ptr %b, i64 %9
+  %load.b.1 = load i8, ptr %gep.b.1, align 1
+  %ext.b.1 = sext i8 %load.b.1 to i32
+  %mul.1 = mul nsw i32 %ext.b.1, %ext.a
+  %add.1 = add nsw i32 %mul.1, %7
+  %11 = or disjoint i64 %9, 1
+  %gep.b.2 = getelementptr inbounds nuw i8, ptr %b, i64 %11
+  %load.b.2 = load i8, ptr %gep.b.2, align 1
+  %ext.b.2 = sext i8 %load.b.2 to i32
+  %mul.2 = mul nsw i32 %ext.b.2, %ext.a
+  %add.2 = add nsw i32 %mul.2, %6
+  %13 = or disjoint i64 %9, 2
+  %gep.b.3 = getelementptr inbounds nuw i8, ptr %b, i64 %13
+  %load.b.3 = load i8, ptr %gep.b.3, align 1
+  %ext.b.3 = sext i8 %load.b.3 to i32
+  %mul.3 = mul nsw i32 %ext.b.3, %ext.a
+  %add.3 = add nsw i32 %mul.3, %5
+  %15 = or disjoint i64 %9, 3
+  %gep.b.4 = getelementptr inbounds nuw i8, ptr %b, i64 %15
+  %load.b.4 = load i8, ptr %gep.b.4, align 1
+  %ext.b.4 = sext i8 %load.b.4 to i32
+  %mul.4 = mul nsw i32 %ext.b.4, %ext.a
+  %add.4 = add nsw i32 %mul.4, %4
+  %17 = or disjoint i64 %9, 4
+  %gep.b.5 = getelementptr inbounds nuw i8, ptr %b, i64 %17
+  %load.b.5 = load i8, ptr %gep.b.5, align 1
+  %ext.b.5 = sext i8 %load.b.5 to i32
+  %mul.5 = mul nsw i32 %ext.b.5, %ext.a
+  %add.5 = add nsw i32 %mul.5, %3
+  %19 = or disjoint i64 %9, 5
+  %gep.b.6 = getelementptr inbounds nuw i8, ptr %b, i64 %19
+  %load.b.6 = load i8, ptr %gep.b.6, align 1
+  %ext.b.6 = sext i8 %load.b.6 to i32
+  %mul.6 = mul nsw i32 %ext.b.6, %ext.a
+  %add.6 = add nsw i32 %mul.6, %2
+  %21 = or disjoint i64 %9, 6
+  %gep.b.7 = getelementptr inbounds nuw i8, ptr %b, i64 %21
+  %load.b.7 = load i8, ptr %gep.b.7, align 1
+  %ext.b.7 = sext i8 %load.b.7 to i32
+  %mul.7 = mul nsw i32 %ext.b.7, %ext.a
+  %add.7 = add nsw i32 %mul.7, %1
+  %23 = or disjoint i64 %9, 7
+  %gep.b.8 = getelementptr inbounds nuw i8, ptr %b, i64 %23
+  %load.b.8 = load i8, ptr %gep.b.8, align 1
+  %ext.b.8 = sext i8 %load.b.8 to i32
+  %mul.8 = mul nsw i32 %ext.b.8, %ext.a
+  %add.8 = add nsw i32 %mul.8, %0
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
+  br i1 %exitcond.not, label %for.cond.for.cond.cleanup_crit_edge, label %for.body
+}
+
+define i32 @dotp_unrolled(i32 %num_out, i64 %num_in, ptr %a, ptr %b) {
+; CHECK-LABEL: LV: Checking a loop in 'dotp_unrolled' from <stdin>
+; CHECK:       LV(REG): VF = 16
+; CHECK-NEXT:  LV(REG): Found max usage: 2 item
+; CHECK-NEXT:  LV(REG): RegisterClass: Generic::ScalarRC, 9 registers
+; CHECK-NEXT:  LV(REG): RegisterClass: Generic::VectorRC, 24 registers
+; CHECK-NEXT:  LV(REG): Found invariant usage: 0 item
+entry:
+  br label %for.body
+
+for.body:                                    ; preds = %entry, %for.body
+  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
+  %accum3 = phi i32 [ 0, %entry ], [ %add.a3, %for.body ]
+  %accum2 = phi i32 [ 0, %entry ], [ %add.a2, %for.body ]
+  %accum1 = phi i32 [ 0, %entry ], [ %add.a1, %for.body ]
+  %accum0 = phi i32 [ 0, %entry ], [ %add.a0, %for.body ]
+  %gep.a0 = getelementptr inbounds i8, ptr %a, i64 %iv
+  %gep.b0 = getelementptr inbounds i8, ptr %b, i64 %iv
+  %offset.1 = or disjoint i64 %iv, 1
+  %gep.a1 = getelementptr inbounds i8, ptr %a, i64 %offset.1
+  %gep.b1 = getelementptr inbounds i8, ptr %b, i64 %offset.1
+  %offset.2 = or disjoint i64 %iv, 2
+  %gep.a2 = getelementptr inbounds i8, ptr %a, i64 %offset.2
+  %gep.b2 = getelementptr inbounds i8, ptr %b, i64 %offset.2
+  %offset.3 = or disjoint i64 %iv, 3
+  %gep.a3 = getelementptr inbounds i8, ptr %a, i64 %offset.3
+  %gep.b3 = getelementptr inbounds i8, ptr %b, i64 %offset.3
+  %load.a0 = load i8, ptr %gep.a0, align 1
+  %ext.a0 = sext i8 %load.a0 to i32
+  %load.b0 = load i8, ptr %gep.b0, align 1
+  %ext.b0 = sext i8 %load.b0 to i32
+  %mul.a0 = mul nsw i32 %ext.b0, %ext.a0
+  %add.a0 = add nsw i32 %mul.a0, %accum0
+  %load.a1 = load i8, ptr %gep.a1, align 1
+  %ext.a1 = sext i8 %load.a1 to i32
+  %load.b1 = load i8, ptr %gep.b1, align 1
+  %ext.b1 = sext i8 %load.b1 to i32
+  %mul.a1 = mul nsw i32 %ext.a1, %ext.b1
+  %add.a1 = add nsw i32 %mul.a1, %accum1
+  %load.a2 = load i8, ptr %gep.a2, align 1
+  %ext.a2 = sext i8 %load.a2 to i32
+  %load.b2 = load i8, ptr %gep.b2, align 1
+  %ext.b2 = sext i8 %load.b2 to i32
+  %mul.a2 = mul nsw i32 %ext.a2, %ext.b2
+  %add.a2 = add nsw i32 %mul.a2, %accum2
+  %load.a3 = load i8, ptr %gep.a3, align 1
+  %ext.a3 = sext i8 %load.a3 to i32
+  %load.b3 = load i8, ptr %gep.b3, align 1
+  %ext.b3 = sext i8 %load.b3 to i32
+  %mul.a3 = mul nsw i32 %ext.a3, %ext.b3
+  %add.a3 = add nsw i32 %mul.a3, %accum3
+  %iv.next = add nuw nsw i64 %iv, 1
+  %exitcond.not = icmp eq i64 %iv.next, %num_in
+  br i1 %exitcond.not, label %exit, label %for.body
+
+exit:                                        ; preds = %for.body
+  %result0 = add nsw i32 %add.a0, %add.a1
+  %result1 = add nsw i32 %add.a2, %add.a3
+  %result = add nsw i32 %result0, %result1
+  ret i32 %result
+}

diff  --git a/llvm/test/Transforms/LoopVectorize/X86/pr47437.ll b/llvm/test/Transforms/LoopVectorize/X86/pr47437.ll
index c4291507e8d97..71e000a0272cc 100644
--- a/llvm/test/Transforms/LoopVectorize/X86/pr47437.ll
+++ b/llvm/test/Transforms/LoopVectorize/X86/pr47437.ll
@@ -212,16 +212,16 @@ define void @test_muladd(ptr noalias nocapture %d1, ptr noalias nocapture readon
 ; AVX1-NEXT:    [[TMP43:%.*]] = sext <4 x i16> [[STRIDED_VEC22]] to <4 x i32>
 ; AVX1-NEXT:    [[TMP46:%.*]] = mul nsw <4 x i32> [[TMP42]], [[TMP38]]
 ; AVX1-NEXT:    [[TMP47:%.*]] = mul nsw <4 x i32> [[TMP43]], [[TMP39]]
-; AVX1-NEXT:    [[TMP48:%.*]] = add nsw <4 x i32> [[TMP46]], [[TMP44]]
-; AVX1-NEXT:    [[TMP49:%.*]] = add nsw <4 x i32> [[TMP47]], [[TMP45]]
-; AVX1-NEXT:    [[TMP52:%.*]] = getelementptr inbounds i32, ptr [[D1:%.*]], i64 [[INDEX]]
-; AVX1-NEXT:    [[TMP56:%.*]] = getelementptr inbounds i32, ptr [[TMP52]], i32 0
-; AVX1-NEXT:    [[TMP57:%.*]] = getelementptr inbounds i32, ptr [[TMP52]], i32 4
-; AVX1-NEXT:    store <4 x i32> [[TMP48]], ptr [[TMP56]], align 4
-; AVX1-NEXT:    store <4 x i32> [[TMP49]], ptr [[TMP57]], align 4
+; AVX1-NEXT:    [[TMP19:%.*]] = add nsw <4 x i32> [[TMP46]], [[TMP44]]
+; AVX1-NEXT:    [[TMP20:%.*]] = add nsw <4 x i32> [[TMP47]], [[TMP45]]
+; AVX1-NEXT:    [[TMP21:%.*]] = getelementptr inbounds i32, ptr [[D1:%.*]], i64 [[INDEX]]
+; AVX1-NEXT:    [[TMP25:%.*]] = getelementptr inbounds i32, ptr [[TMP21]], i32 0
+; AVX1-NEXT:    [[TMP26:%.*]] = getelementptr inbounds i32, ptr [[TMP21]], i32 4
+; AVX1-NEXT:    store <4 x i32> [[TMP19]], ptr [[TMP25]], align 4
+; AVX1-NEXT:    store <4 x i32> [[TMP20]], ptr [[TMP26]], align 4
 ; AVX1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
-; AVX1-NEXT:    [[TMP60:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; AVX1-NEXT:    br i1 [[TMP60]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; AVX1-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; AVX1-NEXT:    br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; AVX1:       middle.block:
 ; AVX1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]]
 ; AVX1-NEXT:    br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[SCALAR_PH]]


        


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