[llvm] [LoopVectorizer] Allow partial reductions to be made in predicated loops (PR #124268)

James Chesterman via llvm-commits llvm-commits at lists.llvm.org
Fri Jan 31 06:22:35 PST 2025


https://github.com/JamesChesterman updated https://github.com/llvm/llvm-project/pull/124268

>From e5c27907e0b864bb093e9f16d4e33e3b98eafde4 Mon Sep 17 00:00:00 2001
From: James Chesterman <james.chesterman at arm.com>
Date: Fri, 24 Jan 2025 13:12:09 +0000
Subject: [PATCH 1/5] [LoopVectorizer] Allow partial reductions to be made in
 predicated loops

Does a select on the input rather than the output. This way the
mask has the same number of lanes as the other operand in the
select instruction.
---
 .../Transforms/Vectorize/LoopVectorize.cpp    | 17 ++++------
 llvm/lib/Transforms/Vectorize/VPlan.h         | 23 ++++++++++---
 .../lib/Transforms/Vectorize/VPlanRecipes.cpp |  6 ++++
 .../partial-reduce-dot-product-neon.ll        | 24 +++++++-------
 .../AArch64/partial-reduce-dot-product.ll     | 32 +++++++++----------
 5 files changed, 58 insertions(+), 44 deletions(-)

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 5375d2be9c8751..5b61d9fa7d3aea 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -8734,13 +8734,6 @@ bool VPRecipeBuilder::getScaledReductions(
   if (!CM.TheLoop->contains(RdxExitInstr))
     return false;
 
-  // TODO: Allow scaling reductions when predicating. The select at
-  // the end of the loop chooses between the phi value and most recent
-  // reduction result, both of which have different VFs to the active lane
-  // mask when scaling.
-  if (CM.blockNeedsPredicationForAnyReason(RdxExitInstr->getParent()))
-    return false;
-
   auto *Update = dyn_cast<BinaryOperator>(RdxExitInstr);
   if (!Update)
     return false;
@@ -8904,8 +8897,9 @@ VPRecipeBuilder::tryToCreatePartialReduction(Instruction *Reduction,
       isa<VPPartialReductionRecipe>(BinOpRecipe))
     std::swap(BinOp, Accumulator);
 
-  return new VPPartialReductionRecipe(Reduction->getOpcode(), BinOp,
-                                      Accumulator, Reduction);
+  VPValue *Mask = getBlockInMask(Reduction->getParent());
+
+  return new VPPartialReductionRecipe(Reduction->getOpcode(), BinOp, Accumulator, Mask, Reduction);
 }
 
 void LoopVectorizationPlanner::buildVPlansWithVPRecipes(ElementCount MinVF,
@@ -9726,8 +9720,9 @@ void LoopVectorizationPlanner::adjustRecipesForReductions(
           PhiTy->isFloatingPointTy()
               ? std::make_optional(RdxDesc.getFastMathFlags())
               : std::nullopt;
-      NewExitingVPV =
-          Builder.createSelect(Cond, OrigExitingVPV, PhiR, {}, "", FMFs);
+      if (!isa<VPPartialReductionRecipe>(OrigExitingVPV->getDefiningRecipe()))
+        NewExitingVPV =
+            Builder.createSelect(Cond, OrigExitingVPV, PhiR, {}, "", FMFs);
       OrigExitingVPV->replaceUsesWithIf(NewExitingVPV, [](VPUser &U, unsigned) {
         return isa<VPInstruction>(&U) &&
                cast<VPInstruction>(&U)->getOpcode() ==
diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index a1ff684b2b8017..3056d7b16db09c 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -2448,16 +2448,18 @@ class VPReductionPHIRecipe : public VPHeaderPHIRecipe,
 /// A recipe for forming partial reductions. In the loop, an accumulator and
 /// vector operand are added together and passed to the next iteration as the
 /// next accumulator. After the loop body, the accumulator is reduced to a
-/// scalar value.
+/// scalar value. If the mask operand is not nullptr then it is applied to the
+/// vector operand on each iteration.
 class VPPartialReductionRecipe : public VPSingleDefRecipe {
   unsigned Opcode;
 
 public:
   VPPartialReductionRecipe(Instruction *ReductionInst, VPValue *Op0,
-                           VPValue *Op1)
-      : VPPartialReductionRecipe(ReductionInst->getOpcode(), Op0, Op1,
+                           VPValue *Op1, VPValue *Mask = nullptr)
+      : VPPartialReductionRecipe(ReductionInst->getOpcode(), Op0, Op1, Mask,
                                  ReductionInst) {}
   VPPartialReductionRecipe(unsigned Opcode, VPValue *Op0, VPValue *Op1,
+                           VPValue *Mask = nullptr,
                            Instruction *ReductionInst = nullptr)
       : VPSingleDefRecipe(VPDef::VPPartialReductionSC,
                           ArrayRef<VPValue *>({Op0, Op1}), ReductionInst),
@@ -2467,12 +2469,23 @@ class VPPartialReductionRecipe : public VPSingleDefRecipe {
     assert((isa<VPReductionPHIRecipe>(AccumulatorRecipe) ||
             isa<VPPartialReductionRecipe>(AccumulatorRecipe)) &&
            "Unexpected operand order for partial reduction recipe");
+    if (Mask)
+      addOperand(Mask);
   }
   ~VPPartialReductionRecipe() override = default;
 
   VPPartialReductionRecipe *clone() override {
-    return new VPPartialReductionRecipe(Opcode, getOperand(0), getOperand(1),
-                                        getUnderlyingInstr());
+    return getNumOperands() == 3
+               ? new VPPartialReductionRecipe(Opcode, getOperand(0),
+                                              getOperand(1), getOperand(2),
+                                              getUnderlyingInstr())
+               : new VPPartialReductionRecipe(Opcode, getOperand(0),
+                                              getOperand(1), nullptr,
+                                              getUnderlyingInstr());
+  }
+
+  VPValue *getMask() const {
+    return getNumOperands() == 3 ? getOperand(2) : nullptr;
   }
 
   VP_CLASSOF_IMPL(VPDef::VPPartialReductionSC)
diff --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
index 2679ed6b26b5d1..8de6dd29f5d8d0 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -327,6 +327,12 @@ void VPPartialReductionRecipe::execute(VPTransformState &State) {
 
   Type *RetTy = PhiVal->getType();
 
+  VPValue *Mask = getMask();
+  if (Mask) {
+    Value *MaskVal = State.get(Mask);
+    Value *Zero = ConstantInt::get(BinOpVal->getType(), 0);
+    BinOpVal = Builder.CreateSelect(MaskVal, BinOpVal, Zero);
+  }
   CallInst *V = Builder.CreateIntrinsic(
       RetTy, Intrinsic::experimental_vector_partial_reduce_add,
       {PhiVal, BinOpVal}, nullptr, "partial.reduce");
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 97a5801d88108a..cc9f00374e2c89 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
@@ -1596,7 +1596,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1:       vector.body:
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_LOAD_CONTINUE62:%.*]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[VEC_IND:%.*]] = phi <16 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_LOAD_CONTINUE62]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP180:%.*]], [[PRED_LOAD_CONTINUE62]] ]
+; CHECK-INTERLEAVE1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[PRED_LOAD_CONTINUE62]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
@@ -1905,14 +1905,14 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP177:%.*]] = phi <16 x i8> [ [[TMP172]], [[PRED_LOAD_CONTINUE60]] ], [ [[TMP176]], [[PRED_LOAD_IF61]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP178:%.*]] = sext <16 x i8> [[TMP177]] to <16 x i32>
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP179:%.*]] = mul nsw <16 x i32> [[TMP178]], [[TMP97]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP180]] = add <16 x i32> [[TMP179]], [[VEC_PHI]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP181:%.*]] = select <16 x i1> [[TMP16]], <16 x i32> [[TMP180]], <16 x i32> [[VEC_PHI]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP180:%.*]] = select <16 x i1> [[TMP16]], <16 x i32> [[TMP179]], <16 x i32> zeroinitializer
+; CHECK-INTERLEAVE1-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP180]])
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 16
 ; CHECK-INTERLEAVE1-NEXT:    [[VEC_IND_NEXT]] = add <16 x i64> [[VEC_IND]], splat (i64 16)
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP182:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP182]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-INTERLEAVE1:       middle.block:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP181]])
+; CHECK-INTERLEAVE1-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
 ; CHECK-INTERLEAVE1-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-INTERLEAVE1:       scalar.ph:
 ; CHECK-INTERLEAVE1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
@@ -1951,7 +1951,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED:       vector.body:
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_LOAD_CONTINUE62:%.*]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[VEC_IND:%.*]] = phi <16 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_LOAD_CONTINUE62]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP180:%.*]], [[PRED_LOAD_CONTINUE62]] ]
+; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[PRED_LOAD_CONTINUE62]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
 ; CHECK-INTERLEAVED-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
@@ -2260,14 +2260,14 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP177:%.*]] = phi <16 x i8> [ [[TMP172]], [[PRED_LOAD_CONTINUE60]] ], [ [[TMP176]], [[PRED_LOAD_IF61]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP178:%.*]] = sext <16 x i8> [[TMP177]] to <16 x i32>
 ; CHECK-INTERLEAVED-NEXT:    [[TMP179:%.*]] = mul nsw <16 x i32> [[TMP178]], [[TMP97]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP180]] = add <16 x i32> [[TMP179]], [[VEC_PHI]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP181:%.*]] = select <16 x i1> [[TMP16]], <16 x i32> [[TMP180]], <16 x i32> [[VEC_PHI]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP180:%.*]] = select <16 x i1> [[TMP16]], <16 x i32> [[TMP179]], <16 x i32> zeroinitializer
+; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP180]])
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 16
 ; CHECK-INTERLEAVED-NEXT:    [[VEC_IND_NEXT]] = add <16 x i64> [[VEC_IND]], splat (i64 16)
 ; CHECK-INTERLEAVED-NEXT:    [[TMP182:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP182]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
-; CHECK-INTERLEAVED-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP181]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
 ; CHECK-INTERLEAVED-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-INTERLEAVED:       scalar.ph:
 ; CHECK-INTERLEAVED-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
@@ -2306,7 +2306,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW:       vector.body:
 ; CHECK-MAXBW-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_LOAD_CONTINUE62:%.*]] ]
 ; CHECK-MAXBW-NEXT:    [[VEC_IND:%.*]] = phi <16 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_LOAD_CONTINUE62]] ]
-; CHECK-MAXBW-NEXT:    [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP180:%.*]], [[PRED_LOAD_CONTINUE62]] ]
+; CHECK-MAXBW-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[PRED_LOAD_CONTINUE62]] ]
 ; CHECK-MAXBW-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
 ; CHECK-MAXBW-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
 ; CHECK-MAXBW-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
@@ -2615,14 +2615,14 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP177:%.*]] = phi <16 x i8> [ [[TMP172]], [[PRED_LOAD_CONTINUE60]] ], [ [[TMP176]], [[PRED_LOAD_IF61]] ]
 ; CHECK-MAXBW-NEXT:    [[TMP178:%.*]] = sext <16 x i8> [[TMP177]] to <16 x i32>
 ; CHECK-MAXBW-NEXT:    [[TMP179:%.*]] = mul nsw <16 x i32> [[TMP178]], [[TMP97]]
-; CHECK-MAXBW-NEXT:    [[TMP180]] = add <16 x i32> [[TMP179]], [[VEC_PHI]]
-; CHECK-MAXBW-NEXT:    [[TMP181:%.*]] = select <16 x i1> [[TMP16]], <16 x i32> [[TMP180]], <16 x i32> [[VEC_PHI]]
+; CHECK-MAXBW-NEXT:    [[TMP180:%.*]] = select <16 x i1> [[TMP16]], <16 x i32> [[TMP179]], <16 x i32> zeroinitializer
+; CHECK-MAXBW-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP180]])
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 16
 ; CHECK-MAXBW-NEXT:    [[VEC_IND_NEXT]] = add <16 x i64> [[VEC_IND]], splat (i64 16)
 ; CHECK-MAXBW-NEXT:    [[TMP182:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP182]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
-; CHECK-MAXBW-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP181]])
+; CHECK-MAXBW-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
 ; CHECK-MAXBW-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-MAXBW:       scalar.ph:
 ; CHECK-MAXBW-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
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 a0214ae88c2d6e..a2a2d231c81d11 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
@@ -1975,41 +1975,41 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
 ; CHECK-MAXBW:       vector.ph:
 ; CHECK-MAXBW-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-MAXBW-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 4
+; CHECK-MAXBW-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 16
 ; CHECK-MAXBW-NEXT:    [[TMP2:%.*]] = sub i64 [[TMP1]], 1
 ; CHECK-MAXBW-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP2]]
 ; CHECK-MAXBW-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
 ; CHECK-MAXBW-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
 ; CHECK-MAXBW-NEXT:    [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-MAXBW-NEXT:    [[TMP4:%.*]] = mul i64 [[TMP3]], 4
+; CHECK-MAXBW-NEXT:    [[TMP4:%.*]] = mul i64 [[TMP3]], 16
 ; CHECK-MAXBW-NEXT:    [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-MAXBW-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP5]], 4
+; CHECK-MAXBW-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP5]], 16
 ; CHECK-MAXBW-NEXT:    [[TMP7:%.*]] = sub i64 [[N]], [[TMP6]]
 ; CHECK-MAXBW-NEXT:    [[TMP8:%.*]] = icmp ugt i64 [[N]], [[TMP6]]
 ; CHECK-MAXBW-NEXT:    [[TMP9:%.*]] = select i1 [[TMP8]], i64 [[TMP7]], i64 0
-; CHECK-MAXBW-NEXT:    [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[N]])
+; CHECK-MAXBW-NEXT:    [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 0, i64 [[N]])
 ; CHECK-MAXBW-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK-MAXBW:       vector.body:
 ; CHECK-MAXBW-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT:    [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 16 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-MAXBW-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP19:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-MAXBW-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], 0
 ; CHECK-MAXBW-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
 ; CHECK-MAXBW-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
-; CHECK-MAXBW-NEXT:    [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP12]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
-; CHECK-MAXBW-NEXT:    [[TMP13:%.*]] = sext <vscale x 4 x i8> [[WIDE_MASKED_LOAD]] to <vscale x 4 x i32>
+; CHECK-MAXBW-NEXT:    [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP12]], i32 1, <vscale x 16 x i1> [[ACTIVE_LANE_MASK]], <vscale x 16 x i8> poison)
+; CHECK-MAXBW-NEXT:    [[TMP13:%.*]] = sext <vscale x 16 x i8> [[WIDE_MASKED_LOAD]] to <vscale x 16 x i32>
 ; CHECK-MAXBW-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
 ; CHECK-MAXBW-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i32 0
-; CHECK-MAXBW-NEXT:    [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP15]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
-; CHECK-MAXBW-NEXT:    [[TMP16:%.*]] = sext <vscale x 4 x i8> [[WIDE_MASKED_LOAD1]] to <vscale x 4 x i32>
-; CHECK-MAXBW-NEXT:    [[TMP17:%.*]] = mul nsw <vscale x 4 x i32> [[TMP16]], [[TMP13]]
-; CHECK-MAXBW-NEXT:    [[TMP18:%.*]] = add <vscale x 4 x i32> [[TMP17]], [[VEC_PHI]]
-; CHECK-MAXBW-NEXT:    [[TMP19]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> [[TMP18]], <vscale x 4 x i32> [[VEC_PHI]]
+; CHECK-MAXBW-NEXT:    [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP15]], i32 1, <vscale x 16 x i1> [[ACTIVE_LANE_MASK]], <vscale x 16 x i8> poison)
+; CHECK-MAXBW-NEXT:    [[TMP16:%.*]] = sext <vscale x 16 x i8> [[WIDE_MASKED_LOAD1]] to <vscale x 16 x i32>
+; CHECK-MAXBW-NEXT:    [[TMP17:%.*]] = mul nsw <vscale x 16 x i32> [[TMP16]], [[TMP13]]
+; CHECK-MAXBW-NEXT:    [[TMP18:%.*]] = select <vscale x 16 x i1> [[ACTIVE_LANE_MASK]], <vscale x 16 x i32> [[TMP17]], <vscale x 16 x i32> zeroinitializer
+; CHECK-MAXBW-NEXT:    [[TMP19]] = call <vscale x 4 x i32> @llvm.experimental.vector.partial.reduce.add.nxv4i32.nxv16i32(<vscale x 4 x i32> [[VEC_PHI]], <vscale x 16 x i32> [[TMP18]])
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
-; CHECK-MAXBW-NEXT:    [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX]], i64 [[TMP9]])
-; CHECK-MAXBW-NEXT:    [[TMP20:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], splat (i1 true)
-; CHECK-MAXBW-NEXT:    [[TMP21:%.*]] = extractelement <vscale x 4 x i1> [[TMP20]], i32 0
-; CHECK-MAXBW-NEXT:    br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
+; CHECK-MAXBW-NEXT:    [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[INDEX]], i64 [[TMP9]])
+; CHECK-MAXBW-NEXT:    [[TMP21:%.*]] = xor <vscale x 16 x i1> [[ACTIVE_LANE_MASK_NEXT]], splat (i1 true)
+; CHECK-MAXBW-NEXT:    [[TMP20:%.*]] = extractelement <vscale x 16 x i1> [[TMP21]], i32 0
+; CHECK-MAXBW-NEXT:    br i1 [[TMP20]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
 ; CHECK-MAXBW-NEXT:    [[TMP22:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP19]])
 ; CHECK-MAXBW-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]

>From b62c3fef6c46d5d2bb49f2b18cacc52c0e55312e Mon Sep 17 00:00:00 2001
From: James Chesterman <james.chesterman at arm.com>
Date: Fri, 24 Jan 2025 14:11:31 +0000
Subject: [PATCH 2/5] Move condition that checks whether current reduction is a
 a partial reduction.

---
 llvm/lib/Transforms/Vectorize/LoopVectorize.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 5b61d9fa7d3aea..6b57ba9eaa85ec 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -9711,7 +9711,8 @@ void LoopVectorizationPlanner::adjustRecipesForReductions(
     // beginning of the dedicated latch block.
     auto *OrigExitingVPV = PhiR->getBackedgeValue();
     auto *NewExitingVPV = PhiR->getBackedgeValue();
-    if (!PhiR->isInLoop() && CM.foldTailByMasking()) {
+    if (!PhiR->isInLoop() && CM.foldTailByMasking() &&
+        !isa<VPPartialReductionRecipe>(OrigExitingVPV->getDefiningRecipe())) {
       VPValue *Cond = RecipeBuilder.getBlockInMask(OrigLoop->getHeader());
       assert(OrigExitingVPV->getDefiningRecipe()->getParent() != LatchVPBB &&
              "reduction recipe must be defined before latch");
@@ -9720,9 +9721,8 @@ void LoopVectorizationPlanner::adjustRecipesForReductions(
           PhiTy->isFloatingPointTy()
               ? std::make_optional(RdxDesc.getFastMathFlags())
               : std::nullopt;
-      if (!isa<VPPartialReductionRecipe>(OrigExitingVPV->getDefiningRecipe()))
-        NewExitingVPV =
-            Builder.createSelect(Cond, OrigExitingVPV, PhiR, {}, "", FMFs);
+      NewExitingVPV =
+          Builder.createSelect(Cond, OrigExitingVPV, PhiR, {}, "", FMFs);
       OrigExitingVPV->replaceUsesWithIf(NewExitingVPV, [](VPUser &U, unsigned) {
         return isa<VPInstruction>(&U) &&
                cast<VPInstruction>(&U)->getOpcode() ==

>From 0e0f8a1f7975422b452493d6878c3c8cac4ec335 Mon Sep 17 00:00:00 2001
From: James Chesterman <james.chesterman at arm.com>
Date: Fri, 24 Jan 2025 16:37:57 +0000
Subject: [PATCH 3/5] Address comments, such as removing and renaming tests

---
 .../Transforms/Vectorize/LoopVectorize.cpp    |   5 +
 llvm/lib/Transforms/Vectorize/VPlan.h         |   9 +-
 .../partial-reduce-dot-product-neon.ll        | 497 ++++++------------
 .../AArch64/partial-reduce-dot-product.ll     | 449 ++++------------
 4 files changed, 274 insertions(+), 686 deletions(-)

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 6b57ba9eaa85ec..dd930c3a5a3b49 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -9711,6 +9711,11 @@ void LoopVectorizationPlanner::adjustRecipesForReductions(
     // beginning of the dedicated latch block.
     auto *OrigExitingVPV = PhiR->getBackedgeValue();
     auto *NewExitingVPV = PhiR->getBackedgeValue();
+    // Don't add selects here for partial reductions because the phi and partial
+    // reduction values have less vector elements than Cond. But, each operand
+    // in a select instruction needs to have the same number of vector elements,
+    // so the compiler would crash. Instead, a select, with the active lane
+    // mask, is applied to the inputs to the partial reduction.
     if (!PhiR->isInLoop() && CM.foldTailByMasking() &&
         !isa<VPPartialReductionRecipe>(OrigExitingVPV->getDefiningRecipe())) {
       VPValue *Cond = RecipeBuilder.getBlockInMask(OrigLoop->getHeader());
diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 3056d7b16db09c..4f074beff1b249 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -2475,13 +2475,8 @@ class VPPartialReductionRecipe : public VPSingleDefRecipe {
   ~VPPartialReductionRecipe() override = default;
 
   VPPartialReductionRecipe *clone() override {
-    return getNumOperands() == 3
-               ? new VPPartialReductionRecipe(Opcode, getOperand(0),
-                                              getOperand(1), getOperand(2),
-                                              getUnderlyingInstr())
-               : new VPPartialReductionRecipe(Opcode, getOperand(0),
-                                              getOperand(1), nullptr,
-                                              getUnderlyingInstr());
+    return new VPPartialReductionRecipe(Opcode, getOperand(0), getOperand(1),
+                                        getMask(), getUnderlyingInstr());
   }
 
   VPValue *getMask() const {
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 cc9f00374e2c89..54dc6ce5d3a92f 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
@@ -1391,197 +1391,8 @@ exit:                                        ; preds = %for.body
   ret i32 %result
 }
 
-define i32 @not_dotp_predicated(i64 %N, ptr %a, ptr %b) {
-; CHECK-INTERLEAVE1-LABEL: define i32 @not_dotp_predicated(
-; CHECK-INTERLEAVE1-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
-; CHECK-INTERLEAVE1-NEXT:  entry:
-; CHECK-INTERLEAVE1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
-; CHECK-INTERLEAVE1:       vector.ph:
-; CHECK-INTERLEAVE1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
-; CHECK-INTERLEAVE1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
-; CHECK-INTERLEAVE1-NEXT:    br label [[VECTOR_BODY:%.*]]
-; CHECK-INTERLEAVE1:       vector.body:
-; CHECK-INTERLEAVE1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
-; CHECK-INTERLEAVE1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0
-; CHECK-INTERLEAVE1-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP2]], align 1
-; CHECK-INTERLEAVE1-NEXT:    [[TMP3:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
-; CHECK-INTERLEAVE1-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 0
-; CHECK-INTERLEAVE1-NEXT:    [[WIDE_LOAD1:%.*]] = load <16 x i8>, ptr [[TMP5]], align 1
-; CHECK-INTERLEAVE1-NEXT:    [[TMP6:%.*]] = sext <16 x i8> [[WIDE_LOAD1]] to <16 x i32>
-; CHECK-INTERLEAVE1-NEXT:    [[TMP7:%.*]] = mul nsw <16 x i32> [[TMP6]], [[TMP3]]
-; CHECK-INTERLEAVE1-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP7]])
-; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
-; CHECK-INTERLEAVE1-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
-; CHECK-INTERLEAVE1:       middle.block:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP9:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
-; CHECK-INTERLEAVE1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
-; CHECK-INTERLEAVE1:       scalar.ph:
-; CHECK-INTERLEAVE1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP9]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
-; CHECK-INTERLEAVE1-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK-INTERLEAVE1:       for.body:
-; CHECK-INTERLEAVE1-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-INTERLEAVE1-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
-; CHECK-INTERLEAVE1-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-INTERLEAVE1-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
-; CHECK-INTERLEAVE1-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
-; CHECK-INTERLEAVE1-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
-; CHECK-INTERLEAVE1-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
-; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
-; CHECK-INTERLEAVE1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
-; CHECK-INTERLEAVE1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
-; CHECK-INTERLEAVE1:       exit:
-; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP9]], [[MIDDLE_BLOCK]] ]
-; CHECK-INTERLEAVE1-NEXT:    ret i32 [[ADD_LCSSA]]
-;
-; CHECK-INTERLEAVED-LABEL: define i32 @not_dotp_predicated(
-; CHECK-INTERLEAVED-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
-; CHECK-INTERLEAVED-NEXT:  entry:
-; CHECK-INTERLEAVED-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 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 [[N]], 32
-; CHECK-INTERLEAVED-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
-; 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> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE5:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
-; CHECK-INTERLEAVED-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 16
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP2]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD2:%.*]] = load <16 x i8>, ptr [[TMP3]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP4:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP5:%.*]] = sext <16 x i8> [[WIDE_LOAD2]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, ptr [[TMP6]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[TMP6]], i32 16
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD3:%.*]] = load <16 x i8>, ptr [[TMP7]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD4:%.*]] = load <16 x i8>, ptr [[TMP8]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP9:%.*]] = sext <16 x i8> [[WIDE_LOAD3]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = sext <16 x i8> [[WIDE_LOAD4]] to <16 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP11:%.*]] = mul nsw <16 x i32> [[TMP9]], [[TMP4]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP12:%.*]] = mul nsw <16 x i32> [[TMP10]], [[TMP5]]
-; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP11]])
-; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE5]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI1]], <16 x i32> [[TMP12]])
-; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
-; CHECK-INTERLEAVED-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
-; CHECK-INTERLEAVED:       middle.block:
-; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add <4 x i32> [[PARTIAL_REDUCE5]], [[PARTIAL_REDUCE]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[BIN_RDX]])
-; CHECK-INTERLEAVED-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
-; CHECK-INTERLEAVED:       scalar.ph:
-; CHECK-INTERLEAVED-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-INTERLEAVED-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP14]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
-; CHECK-INTERLEAVED-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK-INTERLEAVED:       for.body:
-; CHECK-INTERLEAVED-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-INTERLEAVED-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-INTERLEAVED-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
-; CHECK-INTERLEAVED-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
-; CHECK-INTERLEAVED-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
-; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
-; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
-; CHECK-INTERLEAVED-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
-; CHECK-INTERLEAVED:       exit:
-; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP14]], [[MIDDLE_BLOCK]] ]
-; CHECK-INTERLEAVED-NEXT:    ret i32 [[ADD_LCSSA]]
-;
-; CHECK-MAXBW-LABEL: define i32 @not_dotp_predicated(
-; CHECK-MAXBW-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
-; CHECK-MAXBW-NEXT:  entry:
-; CHECK-MAXBW-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
-; CHECK-MAXBW-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
-; CHECK-MAXBW:       vector.ph:
-; CHECK-MAXBW-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
-; CHECK-MAXBW-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
-; CHECK-MAXBW-NEXT:    br label [[VECTOR_BODY:%.*]]
-; CHECK-MAXBW:       vector.body:
-; CHECK-MAXBW-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
-; CHECK-MAXBW-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
-; CHECK-MAXBW-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0
-; CHECK-MAXBW-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP2]], align 1
-; CHECK-MAXBW-NEXT:    [[TMP3:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
-; CHECK-MAXBW-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
-; CHECK-MAXBW-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 0
-; CHECK-MAXBW-NEXT:    [[WIDE_LOAD1:%.*]] = load <16 x i8>, ptr [[TMP5]], align 1
-; CHECK-MAXBW-NEXT:    [[TMP6:%.*]] = sext <16 x i8> [[WIDE_LOAD1]] to <16 x i32>
-; CHECK-MAXBW-NEXT:    [[TMP7:%.*]] = mul nsw <16 x i32> [[TMP6]], [[TMP3]]
-; CHECK-MAXBW-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP7]])
-; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
-; CHECK-MAXBW-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
-; CHECK-MAXBW:       middle.block:
-; CHECK-MAXBW-NEXT:    [[TMP9:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
-; CHECK-MAXBW-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
-; CHECK-MAXBW:       scalar.ph:
-; CHECK-MAXBW-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-MAXBW-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP9]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
-; CHECK-MAXBW-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK-MAXBW:       for.body:
-; CHECK-MAXBW-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-MAXBW-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
-; CHECK-MAXBW-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-MAXBW-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
-; CHECK-MAXBW-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
-; CHECK-MAXBW-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
-; CHECK-MAXBW-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
-; CHECK-MAXBW-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
-; CHECK-MAXBW-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
-; CHECK-MAXBW-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
-; CHECK-MAXBW:       exit:
-; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP9]], [[MIDDLE_BLOCK]] ]
-; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
-;
-entry:
-  br label %for.body
-
-for.body:                                         ; preds = %entry, %for.body
-  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
-  %accum = phi i32 [ 0, %entry ], [ %add, %for.body ]
-  %gep.a = getelementptr inbounds i8, ptr %a, i64 %iv
-  %load.a = load i8, ptr %gep.a, align 1
-  %ext.a = sext i8 %load.a to i32
-  %gep.b = getelementptr inbounds i8, ptr %b, i64 %iv
-  %load.b = load i8, ptr %gep.b, align 1
-  %ext.b = sext i8 %load.b to i32
-  %mul = mul nsw i32 %ext.b, %ext.a
-  %add = add nsw i32 %mul, %accum
-  %iv.next = add nuw nsw i64 %iv, 1
-  %exitcond.not = icmp eq i64 %iv.next, %N
-  br i1 %exitcond.not, label %exit, label %for.body
-
-exit:                        ; preds = %for.body
-  ret i32 %add
-}
-
-define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
-; CHECK-INTERLEAVE1-LABEL: define i32 @not_dotp_predicated_pragma(
+define i32 @dotp_predicated(i64 %N, ptr %a, ptr %b) {
+; CHECK-INTERLEAVE1-LABEL: define i32 @dotp_predicated(
 ; CHECK-INTERLEAVE1-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-INTERLEAVE1-NEXT:  entry:
 ; CHECK-INTERLEAVE1-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
@@ -1617,7 +1428,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP17:%.*]] = extractelement <16 x i1> [[TMP16]], i32 0
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP17]], label [[PRED_LOAD_IF:%.*]], label [[PRED_LOAD_CONTINUE:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP19:%.*]] = load i8, ptr [[TMP18]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP20:%.*]] = insertelement <16 x i8> poison, i8 [[TMP19]], i32 0
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE]]
@@ -1626,7 +1437,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP22:%.*]] = extractelement <16 x i1> [[TMP16]], i32 1
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP22]], label [[PRED_LOAD_IF1:%.*]], label [[PRED_LOAD_CONTINUE2:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if1:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP1]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP24:%.*]] = load i8, ptr [[TMP23]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP25:%.*]] = insertelement <16 x i8> [[TMP21]], i8 [[TMP24]], i32 1
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE2]]
@@ -1635,7 +1446,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP27:%.*]] = extractelement <16 x i1> [[TMP16]], i32 2
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP27]], label [[PRED_LOAD_IF3:%.*]], label [[PRED_LOAD_CONTINUE4:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if3:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP28:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP2]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP28:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP2]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP29:%.*]] = load i8, ptr [[TMP28]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP30:%.*]] = insertelement <16 x i8> [[TMP26]], i8 [[TMP29]], i32 2
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE4]]
@@ -1644,7 +1455,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP32:%.*]] = extractelement <16 x i1> [[TMP16]], i32 3
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP32]], label [[PRED_LOAD_IF5:%.*]], label [[PRED_LOAD_CONTINUE6:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if5:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP33:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP33:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP34:%.*]] = load i8, ptr [[TMP33]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP35:%.*]] = insertelement <16 x i8> [[TMP31]], i8 [[TMP34]], i32 3
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE6]]
@@ -1653,7 +1464,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP37:%.*]] = extractelement <16 x i1> [[TMP16]], i32 4
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP37]], label [[PRED_LOAD_IF7:%.*]], label [[PRED_LOAD_CONTINUE8:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if7:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP4]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP40:%.*]] = insertelement <16 x i8> [[TMP36]], i8 [[TMP39]], i32 4
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE8]]
@@ -1662,7 +1473,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP42:%.*]] = extractelement <16 x i1> [[TMP16]], i32 5
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP42]], label [[PRED_LOAD_IF9:%.*]], label [[PRED_LOAD_CONTINUE10:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if9:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP5]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP5]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP44:%.*]] = load i8, ptr [[TMP43]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP45:%.*]] = insertelement <16 x i8> [[TMP41]], i8 [[TMP44]], i32 5
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE10]]
@@ -1671,7 +1482,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP47:%.*]] = extractelement <16 x i1> [[TMP16]], i32 6
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP47]], label [[PRED_LOAD_IF11:%.*]], label [[PRED_LOAD_CONTINUE12:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if11:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP48:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP48:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP49:%.*]] = load i8, ptr [[TMP48]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP50:%.*]] = insertelement <16 x i8> [[TMP46]], i8 [[TMP49]], i32 6
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE12]]
@@ -1680,7 +1491,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP52:%.*]] = extractelement <16 x i1> [[TMP16]], i32 7
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP52]], label [[PRED_LOAD_IF13:%.*]], label [[PRED_LOAD_CONTINUE14:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if13:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP7]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP7]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP54:%.*]] = load i8, ptr [[TMP53]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP55:%.*]] = insertelement <16 x i8> [[TMP51]], i8 [[TMP54]], i32 7
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE14]]
@@ -1689,7 +1500,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP57:%.*]] = extractelement <16 x i1> [[TMP16]], i32 8
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP57]], label [[PRED_LOAD_IF15:%.*]], label [[PRED_LOAD_CONTINUE16:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if15:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP58:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP8]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP58:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP8]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP59:%.*]] = load i8, ptr [[TMP58]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP60:%.*]] = insertelement <16 x i8> [[TMP56]], i8 [[TMP59]], i32 8
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE16]]
@@ -1698,7 +1509,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP62:%.*]] = extractelement <16 x i1> [[TMP16]], i32 9
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP62]], label [[PRED_LOAD_IF17:%.*]], label [[PRED_LOAD_CONTINUE18:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if17:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP63:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP63:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP64:%.*]] = load i8, ptr [[TMP63]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP65:%.*]] = insertelement <16 x i8> [[TMP61]], i8 [[TMP64]], i32 9
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE18]]
@@ -1707,7 +1518,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP67:%.*]] = extractelement <16 x i1> [[TMP16]], i32 10
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP67]], label [[PRED_LOAD_IF19:%.*]], label [[PRED_LOAD_CONTINUE20:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if19:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP68:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP68:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP69:%.*]] = load i8, ptr [[TMP68]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP70:%.*]] = insertelement <16 x i8> [[TMP66]], i8 [[TMP69]], i32 10
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE20]]
@@ -1716,7 +1527,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP72:%.*]] = extractelement <16 x i1> [[TMP16]], i32 11
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP72]], label [[PRED_LOAD_IF21:%.*]], label [[PRED_LOAD_CONTINUE22:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if21:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP73:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP11]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP73:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP11]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP74:%.*]] = load i8, ptr [[TMP73]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP75:%.*]] = insertelement <16 x i8> [[TMP71]], i8 [[TMP74]], i32 11
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE22]]
@@ -1725,7 +1536,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP77:%.*]] = extractelement <16 x i1> [[TMP16]], i32 12
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP77]], label [[PRED_LOAD_IF23:%.*]], label [[PRED_LOAD_CONTINUE24:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if23:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP78:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP12]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP78:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP12]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP79:%.*]] = load i8, ptr [[TMP78]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP80:%.*]] = insertelement <16 x i8> [[TMP76]], i8 [[TMP79]], i32 12
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE24]]
@@ -1734,7 +1545,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP82:%.*]] = extractelement <16 x i1> [[TMP16]], i32 13
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP82]], label [[PRED_LOAD_IF25:%.*]], label [[PRED_LOAD_CONTINUE26:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if25:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP83:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP13]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP83:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP13]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP84:%.*]] = load i8, ptr [[TMP83]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP85:%.*]] = insertelement <16 x i8> [[TMP81]], i8 [[TMP84]], i32 13
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE26]]
@@ -1743,7 +1554,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP87:%.*]] = extractelement <16 x i1> [[TMP16]], i32 14
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP87]], label [[PRED_LOAD_IF27:%.*]], label [[PRED_LOAD_CONTINUE28:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if27:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP88:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP14]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP88:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP14]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP89:%.*]] = load i8, ptr [[TMP88]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP90:%.*]] = insertelement <16 x i8> [[TMP86]], i8 [[TMP89]], i32 14
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE28]]
@@ -1752,7 +1563,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP92:%.*]] = extractelement <16 x i1> [[TMP16]], i32 15
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP92]], label [[PRED_LOAD_IF29:%.*]], label [[PRED_LOAD_CONTINUE30:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if29:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP93:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP15]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP93:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP15]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP94:%.*]] = load i8, ptr [[TMP93]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP95:%.*]] = insertelement <16 x i8> [[TMP91]], i8 [[TMP94]], i32 15
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE30]]
@@ -1762,7 +1573,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP98:%.*]] = extractelement <16 x i1> [[TMP16]], i32 0
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP98]], label [[PRED_LOAD_IF31:%.*]], label [[PRED_LOAD_CONTINUE32:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if31:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP99:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP99:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP100:%.*]] = load i8, ptr [[TMP99]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP101:%.*]] = insertelement <16 x i8> poison, i8 [[TMP100]], i32 0
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE32]]
@@ -1771,7 +1582,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP103:%.*]] = extractelement <16 x i1> [[TMP16]], i32 1
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP103]], label [[PRED_LOAD_IF33:%.*]], label [[PRED_LOAD_CONTINUE34:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if33:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP104:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP104:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP1]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP105:%.*]] = load i8, ptr [[TMP104]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP106:%.*]] = insertelement <16 x i8> [[TMP102]], i8 [[TMP105]], i32 1
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE34]]
@@ -1780,7 +1591,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP108:%.*]] = extractelement <16 x i1> [[TMP16]], i32 2
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP108]], label [[PRED_LOAD_IF35:%.*]], label [[PRED_LOAD_CONTINUE36:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if35:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP109:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP2]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP109:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP2]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP110:%.*]] = load i8, ptr [[TMP109]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP111:%.*]] = insertelement <16 x i8> [[TMP107]], i8 [[TMP110]], i32 2
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE36]]
@@ -1789,7 +1600,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP113:%.*]] = extractelement <16 x i1> [[TMP16]], i32 3
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP113]], label [[PRED_LOAD_IF37:%.*]], label [[PRED_LOAD_CONTINUE38:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if37:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP114:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP114:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP115:%.*]] = load i8, ptr [[TMP114]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP116:%.*]] = insertelement <16 x i8> [[TMP112]], i8 [[TMP115]], i32 3
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE38]]
@@ -1798,7 +1609,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP118:%.*]] = extractelement <16 x i1> [[TMP16]], i32 4
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP118]], label [[PRED_LOAD_IF39:%.*]], label [[PRED_LOAD_CONTINUE40:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if39:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP119:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP119:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP4]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP120:%.*]] = load i8, ptr [[TMP119]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP121:%.*]] = insertelement <16 x i8> [[TMP117]], i8 [[TMP120]], i32 4
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE40]]
@@ -1807,7 +1618,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP123:%.*]] = extractelement <16 x i1> [[TMP16]], i32 5
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP123]], label [[PRED_LOAD_IF41:%.*]], label [[PRED_LOAD_CONTINUE42:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if41:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP124:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP5]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP124:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP5]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP125:%.*]] = load i8, ptr [[TMP124]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP126:%.*]] = insertelement <16 x i8> [[TMP122]], i8 [[TMP125]], i32 5
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE42]]
@@ -1816,7 +1627,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP128:%.*]] = extractelement <16 x i1> [[TMP16]], i32 6
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP128]], label [[PRED_LOAD_IF43:%.*]], label [[PRED_LOAD_CONTINUE44:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if43:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP129:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP129:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP130:%.*]] = load i8, ptr [[TMP129]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP131:%.*]] = insertelement <16 x i8> [[TMP127]], i8 [[TMP130]], i32 6
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE44]]
@@ -1825,7 +1636,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP133:%.*]] = extractelement <16 x i1> [[TMP16]], i32 7
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP133]], label [[PRED_LOAD_IF45:%.*]], label [[PRED_LOAD_CONTINUE46:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if45:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP134:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP7]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP134:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP7]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP135:%.*]] = load i8, ptr [[TMP134]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP136:%.*]] = insertelement <16 x i8> [[TMP132]], i8 [[TMP135]], i32 7
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE46]]
@@ -1834,7 +1645,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP138:%.*]] = extractelement <16 x i1> [[TMP16]], i32 8
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP138]], label [[PRED_LOAD_IF47:%.*]], label [[PRED_LOAD_CONTINUE48:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if47:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP139:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP8]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP139:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP8]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP140:%.*]] = load i8, ptr [[TMP139]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP141:%.*]] = insertelement <16 x i8> [[TMP137]], i8 [[TMP140]], i32 8
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE48]]
@@ -1843,7 +1654,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP143:%.*]] = extractelement <16 x i1> [[TMP16]], i32 9
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP143]], label [[PRED_LOAD_IF49:%.*]], label [[PRED_LOAD_CONTINUE50:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if49:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP144:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP144:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP145:%.*]] = load i8, ptr [[TMP144]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP146:%.*]] = insertelement <16 x i8> [[TMP142]], i8 [[TMP145]], i32 9
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE50]]
@@ -1852,7 +1663,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP148:%.*]] = extractelement <16 x i1> [[TMP16]], i32 10
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP148]], label [[PRED_LOAD_IF51:%.*]], label [[PRED_LOAD_CONTINUE52:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if51:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP149:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP149:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP150:%.*]] = load i8, ptr [[TMP149]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP151:%.*]] = insertelement <16 x i8> [[TMP147]], i8 [[TMP150]], i32 10
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE52]]
@@ -1861,7 +1672,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP153:%.*]] = extractelement <16 x i1> [[TMP16]], i32 11
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP153]], label [[PRED_LOAD_IF53:%.*]], label [[PRED_LOAD_CONTINUE54:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if53:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP154:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP11]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP154:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP11]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP155:%.*]] = load i8, ptr [[TMP154]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP156:%.*]] = insertelement <16 x i8> [[TMP152]], i8 [[TMP155]], i32 11
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE54]]
@@ -1870,7 +1681,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP158:%.*]] = extractelement <16 x i1> [[TMP16]], i32 12
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP158]], label [[PRED_LOAD_IF55:%.*]], label [[PRED_LOAD_CONTINUE56:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if55:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP159:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP12]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP159:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP12]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP160:%.*]] = load i8, ptr [[TMP159]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP161:%.*]] = insertelement <16 x i8> [[TMP157]], i8 [[TMP160]], i32 12
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE56]]
@@ -1879,7 +1690,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP163:%.*]] = extractelement <16 x i1> [[TMP16]], i32 13
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP163]], label [[PRED_LOAD_IF57:%.*]], label [[PRED_LOAD_CONTINUE58:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if57:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP164:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP13]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP164:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP13]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP165:%.*]] = load i8, ptr [[TMP164]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP166:%.*]] = insertelement <16 x i8> [[TMP162]], i8 [[TMP165]], i32 13
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE58]]
@@ -1888,7 +1699,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP168:%.*]] = extractelement <16 x i1> [[TMP16]], i32 14
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP168]], label [[PRED_LOAD_IF59:%.*]], label [[PRED_LOAD_CONTINUE60:%.*]]
 ; CHECK-INTERLEAVE1:       pred.load.if59:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP169:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP14]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP169:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP14]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP170:%.*]] = load i8, ptr [[TMP169]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP171:%.*]] = insertelement <16 x i8> [[TMP167]], i8 [[TMP170]], i32 14
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE60]]
@@ -1897,7 +1708,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP173:%.*]] = extractelement <16 x i1> [[TMP16]], i32 15
 ; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP173]], label [[PRED_LOAD_IF61:%.*]], label [[PRED_LOAD_CONTINUE62]]
 ; CHECK-INTERLEAVE1:       pred.load.if61:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP174:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP15]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP174:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP15]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP175:%.*]] = load i8, ptr [[TMP174]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP176:%.*]] = insertelement <16 x i8> [[TMP172]], i8 [[TMP175]], i32 15
 ; CHECK-INTERLEAVE1-NEXT:    br label [[PRED_LOAD_CONTINUE62]]
@@ -1909,34 +1720,34 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP180]])
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 16
 ; CHECK-INTERLEAVE1-NEXT:    [[VEC_IND_NEXT]] = add <16 x i64> [[VEC_IND]], splat (i64 16)
-; CHECK-INTERLEAVE1-NEXT:    [[TMP182:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP182]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP181:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP181]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
 ; CHECK-INTERLEAVE1:       middle.block:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
+; CHECK-INTERLEAVE1-NEXT:    [[TMP182:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
 ; CHECK-INTERLEAVE1-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-INTERLEAVE1:       scalar.ph:
 ; CHECK-INTERLEAVE1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP183]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-INTERLEAVE1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP182]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
 ; CHECK-INTERLEAVE1-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK-INTERLEAVE1:       for.body:
 ; CHECK-INTERLEAVE1-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
 ; CHECK-INTERLEAVE1-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-INTERLEAVE1-NEXT:    [[GEP_A2:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-INTERLEAVE1-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_A2]], align 1
+; CHECK-INTERLEAVE1-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
 ; CHECK-INTERLEAVE1-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVE1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-INTERLEAVE1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-INTERLEAVE1:       exit:
-; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP183]], [[MIDDLE_BLOCK]] ]
+; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP182]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVE1-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
-; CHECK-INTERLEAVED-LABEL: define i32 @not_dotp_predicated_pragma(
+; CHECK-INTERLEAVED-LABEL: define i32 @dotp_predicated(
 ; CHECK-INTERLEAVED-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-INTERLEAVED-NEXT:  entry:
 ; CHECK-INTERLEAVED-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
@@ -1972,7 +1783,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP17:%.*]] = extractelement <16 x i1> [[TMP16]], i32 0
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP17]], label [[PRED_LOAD_IF:%.*]], label [[PRED_LOAD_CONTINUE:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if:
-; CHECK-INTERLEAVED-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP19:%.*]] = load i8, ptr [[TMP18]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP20:%.*]] = insertelement <16 x i8> poison, i8 [[TMP19]], i32 0
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE]]
@@ -1981,7 +1792,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP22:%.*]] = extractelement <16 x i1> [[TMP16]], i32 1
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP22]], label [[PRED_LOAD_IF1:%.*]], label [[PRED_LOAD_CONTINUE2:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if1:
-; CHECK-INTERLEAVED-NEXT:    [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP1]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP24:%.*]] = load i8, ptr [[TMP23]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP25:%.*]] = insertelement <16 x i8> [[TMP21]], i8 [[TMP24]], i32 1
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE2]]
@@ -1990,7 +1801,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP27:%.*]] = extractelement <16 x i1> [[TMP16]], i32 2
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP27]], label [[PRED_LOAD_IF3:%.*]], label [[PRED_LOAD_CONTINUE4:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if3:
-; CHECK-INTERLEAVED-NEXT:    [[TMP28:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP2]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP28:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP2]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP29:%.*]] = load i8, ptr [[TMP28]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP30:%.*]] = insertelement <16 x i8> [[TMP26]], i8 [[TMP29]], i32 2
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE4]]
@@ -1999,7 +1810,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP32:%.*]] = extractelement <16 x i1> [[TMP16]], i32 3
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP32]], label [[PRED_LOAD_IF5:%.*]], label [[PRED_LOAD_CONTINUE6:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if5:
-; CHECK-INTERLEAVED-NEXT:    [[TMP33:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP33:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP34:%.*]] = load i8, ptr [[TMP33]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP35:%.*]] = insertelement <16 x i8> [[TMP31]], i8 [[TMP34]], i32 3
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE6]]
@@ -2008,7 +1819,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP37:%.*]] = extractelement <16 x i1> [[TMP16]], i32 4
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP37]], label [[PRED_LOAD_IF7:%.*]], label [[PRED_LOAD_CONTINUE8:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if7:
-; CHECK-INTERLEAVED-NEXT:    [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP4]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP40:%.*]] = insertelement <16 x i8> [[TMP36]], i8 [[TMP39]], i32 4
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE8]]
@@ -2017,7 +1828,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP42:%.*]] = extractelement <16 x i1> [[TMP16]], i32 5
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP42]], label [[PRED_LOAD_IF9:%.*]], label [[PRED_LOAD_CONTINUE10:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if9:
-; CHECK-INTERLEAVED-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP5]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP5]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP44:%.*]] = load i8, ptr [[TMP43]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP45:%.*]] = insertelement <16 x i8> [[TMP41]], i8 [[TMP44]], i32 5
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE10]]
@@ -2026,7 +1837,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP47:%.*]] = extractelement <16 x i1> [[TMP16]], i32 6
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP47]], label [[PRED_LOAD_IF11:%.*]], label [[PRED_LOAD_CONTINUE12:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if11:
-; CHECK-INTERLEAVED-NEXT:    [[TMP48:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP48:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP49:%.*]] = load i8, ptr [[TMP48]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP50:%.*]] = insertelement <16 x i8> [[TMP46]], i8 [[TMP49]], i32 6
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE12]]
@@ -2035,7 +1846,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP52:%.*]] = extractelement <16 x i1> [[TMP16]], i32 7
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP52]], label [[PRED_LOAD_IF13:%.*]], label [[PRED_LOAD_CONTINUE14:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if13:
-; CHECK-INTERLEAVED-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP7]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP7]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP54:%.*]] = load i8, ptr [[TMP53]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP55:%.*]] = insertelement <16 x i8> [[TMP51]], i8 [[TMP54]], i32 7
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE14]]
@@ -2044,7 +1855,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP57:%.*]] = extractelement <16 x i1> [[TMP16]], i32 8
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP57]], label [[PRED_LOAD_IF15:%.*]], label [[PRED_LOAD_CONTINUE16:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if15:
-; CHECK-INTERLEAVED-NEXT:    [[TMP58:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP8]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP58:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP8]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP59:%.*]] = load i8, ptr [[TMP58]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP60:%.*]] = insertelement <16 x i8> [[TMP56]], i8 [[TMP59]], i32 8
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE16]]
@@ -2053,7 +1864,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP62:%.*]] = extractelement <16 x i1> [[TMP16]], i32 9
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP62]], label [[PRED_LOAD_IF17:%.*]], label [[PRED_LOAD_CONTINUE18:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if17:
-; CHECK-INTERLEAVED-NEXT:    [[TMP63:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP63:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP64:%.*]] = load i8, ptr [[TMP63]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP65:%.*]] = insertelement <16 x i8> [[TMP61]], i8 [[TMP64]], i32 9
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE18]]
@@ -2062,7 +1873,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP67:%.*]] = extractelement <16 x i1> [[TMP16]], i32 10
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP67]], label [[PRED_LOAD_IF19:%.*]], label [[PRED_LOAD_CONTINUE20:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if19:
-; CHECK-INTERLEAVED-NEXT:    [[TMP68:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP68:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP69:%.*]] = load i8, ptr [[TMP68]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP70:%.*]] = insertelement <16 x i8> [[TMP66]], i8 [[TMP69]], i32 10
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE20]]
@@ -2071,7 +1882,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP72:%.*]] = extractelement <16 x i1> [[TMP16]], i32 11
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP72]], label [[PRED_LOAD_IF21:%.*]], label [[PRED_LOAD_CONTINUE22:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if21:
-; CHECK-INTERLEAVED-NEXT:    [[TMP73:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP11]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP73:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP11]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP74:%.*]] = load i8, ptr [[TMP73]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP75:%.*]] = insertelement <16 x i8> [[TMP71]], i8 [[TMP74]], i32 11
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE22]]
@@ -2080,7 +1891,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP77:%.*]] = extractelement <16 x i1> [[TMP16]], i32 12
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP77]], label [[PRED_LOAD_IF23:%.*]], label [[PRED_LOAD_CONTINUE24:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if23:
-; CHECK-INTERLEAVED-NEXT:    [[TMP78:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP12]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP78:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP12]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP79:%.*]] = load i8, ptr [[TMP78]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP80:%.*]] = insertelement <16 x i8> [[TMP76]], i8 [[TMP79]], i32 12
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE24]]
@@ -2089,7 +1900,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP82:%.*]] = extractelement <16 x i1> [[TMP16]], i32 13
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP82]], label [[PRED_LOAD_IF25:%.*]], label [[PRED_LOAD_CONTINUE26:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if25:
-; CHECK-INTERLEAVED-NEXT:    [[TMP83:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP13]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP83:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP13]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP84:%.*]] = load i8, ptr [[TMP83]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP85:%.*]] = insertelement <16 x i8> [[TMP81]], i8 [[TMP84]], i32 13
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE26]]
@@ -2098,7 +1909,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP87:%.*]] = extractelement <16 x i1> [[TMP16]], i32 14
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP87]], label [[PRED_LOAD_IF27:%.*]], label [[PRED_LOAD_CONTINUE28:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if27:
-; CHECK-INTERLEAVED-NEXT:    [[TMP88:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP14]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP88:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP14]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP89:%.*]] = load i8, ptr [[TMP88]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP90:%.*]] = insertelement <16 x i8> [[TMP86]], i8 [[TMP89]], i32 14
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE28]]
@@ -2107,7 +1918,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP92:%.*]] = extractelement <16 x i1> [[TMP16]], i32 15
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP92]], label [[PRED_LOAD_IF29:%.*]], label [[PRED_LOAD_CONTINUE30:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if29:
-; CHECK-INTERLEAVED-NEXT:    [[TMP93:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP15]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP93:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP15]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP94:%.*]] = load i8, ptr [[TMP93]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP95:%.*]] = insertelement <16 x i8> [[TMP91]], i8 [[TMP94]], i32 15
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE30]]
@@ -2117,7 +1928,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP98:%.*]] = extractelement <16 x i1> [[TMP16]], i32 0
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP98]], label [[PRED_LOAD_IF31:%.*]], label [[PRED_LOAD_CONTINUE32:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if31:
-; CHECK-INTERLEAVED-NEXT:    [[TMP99:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP99:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP100:%.*]] = load i8, ptr [[TMP99]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP101:%.*]] = insertelement <16 x i8> poison, i8 [[TMP100]], i32 0
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE32]]
@@ -2126,7 +1937,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP103:%.*]] = extractelement <16 x i1> [[TMP16]], i32 1
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP103]], label [[PRED_LOAD_IF33:%.*]], label [[PRED_LOAD_CONTINUE34:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if33:
-; CHECK-INTERLEAVED-NEXT:    [[TMP104:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP104:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP1]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP105:%.*]] = load i8, ptr [[TMP104]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP106:%.*]] = insertelement <16 x i8> [[TMP102]], i8 [[TMP105]], i32 1
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE34]]
@@ -2135,7 +1946,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP108:%.*]] = extractelement <16 x i1> [[TMP16]], i32 2
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP108]], label [[PRED_LOAD_IF35:%.*]], label [[PRED_LOAD_CONTINUE36:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if35:
-; CHECK-INTERLEAVED-NEXT:    [[TMP109:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP2]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP109:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP2]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP110:%.*]] = load i8, ptr [[TMP109]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP111:%.*]] = insertelement <16 x i8> [[TMP107]], i8 [[TMP110]], i32 2
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE36]]
@@ -2144,7 +1955,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP113:%.*]] = extractelement <16 x i1> [[TMP16]], i32 3
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP113]], label [[PRED_LOAD_IF37:%.*]], label [[PRED_LOAD_CONTINUE38:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if37:
-; CHECK-INTERLEAVED-NEXT:    [[TMP114:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP114:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP115:%.*]] = load i8, ptr [[TMP114]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP116:%.*]] = insertelement <16 x i8> [[TMP112]], i8 [[TMP115]], i32 3
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE38]]
@@ -2153,7 +1964,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP118:%.*]] = extractelement <16 x i1> [[TMP16]], i32 4
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP118]], label [[PRED_LOAD_IF39:%.*]], label [[PRED_LOAD_CONTINUE40:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if39:
-; CHECK-INTERLEAVED-NEXT:    [[TMP119:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP119:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP4]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP120:%.*]] = load i8, ptr [[TMP119]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP121:%.*]] = insertelement <16 x i8> [[TMP117]], i8 [[TMP120]], i32 4
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE40]]
@@ -2162,7 +1973,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP123:%.*]] = extractelement <16 x i1> [[TMP16]], i32 5
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP123]], label [[PRED_LOAD_IF41:%.*]], label [[PRED_LOAD_CONTINUE42:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if41:
-; CHECK-INTERLEAVED-NEXT:    [[TMP124:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP5]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP124:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP5]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP125:%.*]] = load i8, ptr [[TMP124]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP126:%.*]] = insertelement <16 x i8> [[TMP122]], i8 [[TMP125]], i32 5
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE42]]
@@ -2171,7 +1982,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP128:%.*]] = extractelement <16 x i1> [[TMP16]], i32 6
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP128]], label [[PRED_LOAD_IF43:%.*]], label [[PRED_LOAD_CONTINUE44:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if43:
-; CHECK-INTERLEAVED-NEXT:    [[TMP129:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP129:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP130:%.*]] = load i8, ptr [[TMP129]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP131:%.*]] = insertelement <16 x i8> [[TMP127]], i8 [[TMP130]], i32 6
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE44]]
@@ -2180,7 +1991,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP133:%.*]] = extractelement <16 x i1> [[TMP16]], i32 7
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP133]], label [[PRED_LOAD_IF45:%.*]], label [[PRED_LOAD_CONTINUE46:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if45:
-; CHECK-INTERLEAVED-NEXT:    [[TMP134:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP7]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP134:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP7]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP135:%.*]] = load i8, ptr [[TMP134]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP136:%.*]] = insertelement <16 x i8> [[TMP132]], i8 [[TMP135]], i32 7
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE46]]
@@ -2189,7 +2000,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP138:%.*]] = extractelement <16 x i1> [[TMP16]], i32 8
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP138]], label [[PRED_LOAD_IF47:%.*]], label [[PRED_LOAD_CONTINUE48:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if47:
-; CHECK-INTERLEAVED-NEXT:    [[TMP139:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP8]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP139:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP8]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP140:%.*]] = load i8, ptr [[TMP139]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP141:%.*]] = insertelement <16 x i8> [[TMP137]], i8 [[TMP140]], i32 8
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE48]]
@@ -2198,7 +2009,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP143:%.*]] = extractelement <16 x i1> [[TMP16]], i32 9
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP143]], label [[PRED_LOAD_IF49:%.*]], label [[PRED_LOAD_CONTINUE50:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if49:
-; CHECK-INTERLEAVED-NEXT:    [[TMP144:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP144:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP145:%.*]] = load i8, ptr [[TMP144]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP146:%.*]] = insertelement <16 x i8> [[TMP142]], i8 [[TMP145]], i32 9
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE50]]
@@ -2207,7 +2018,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP148:%.*]] = extractelement <16 x i1> [[TMP16]], i32 10
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP148]], label [[PRED_LOAD_IF51:%.*]], label [[PRED_LOAD_CONTINUE52:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if51:
-; CHECK-INTERLEAVED-NEXT:    [[TMP149:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP149:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP150:%.*]] = load i8, ptr [[TMP149]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP151:%.*]] = insertelement <16 x i8> [[TMP147]], i8 [[TMP150]], i32 10
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE52]]
@@ -2216,7 +2027,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP153:%.*]] = extractelement <16 x i1> [[TMP16]], i32 11
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP153]], label [[PRED_LOAD_IF53:%.*]], label [[PRED_LOAD_CONTINUE54:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if53:
-; CHECK-INTERLEAVED-NEXT:    [[TMP154:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP11]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP154:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP11]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP155:%.*]] = load i8, ptr [[TMP154]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP156:%.*]] = insertelement <16 x i8> [[TMP152]], i8 [[TMP155]], i32 11
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE54]]
@@ -2225,7 +2036,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP158:%.*]] = extractelement <16 x i1> [[TMP16]], i32 12
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP158]], label [[PRED_LOAD_IF55:%.*]], label [[PRED_LOAD_CONTINUE56:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if55:
-; CHECK-INTERLEAVED-NEXT:    [[TMP159:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP12]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP159:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP12]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP160:%.*]] = load i8, ptr [[TMP159]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP161:%.*]] = insertelement <16 x i8> [[TMP157]], i8 [[TMP160]], i32 12
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE56]]
@@ -2234,7 +2045,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP163:%.*]] = extractelement <16 x i1> [[TMP16]], i32 13
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP163]], label [[PRED_LOAD_IF57:%.*]], label [[PRED_LOAD_CONTINUE58:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if57:
-; CHECK-INTERLEAVED-NEXT:    [[TMP164:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP13]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP164:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP13]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP165:%.*]] = load i8, ptr [[TMP164]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP166:%.*]] = insertelement <16 x i8> [[TMP162]], i8 [[TMP165]], i32 13
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE58]]
@@ -2243,7 +2054,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP168:%.*]] = extractelement <16 x i1> [[TMP16]], i32 14
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP168]], label [[PRED_LOAD_IF59:%.*]], label [[PRED_LOAD_CONTINUE60:%.*]]
 ; CHECK-INTERLEAVED:       pred.load.if59:
-; CHECK-INTERLEAVED-NEXT:    [[TMP169:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP14]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP169:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP14]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP170:%.*]] = load i8, ptr [[TMP169]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP171:%.*]] = insertelement <16 x i8> [[TMP167]], i8 [[TMP170]], i32 14
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE60]]
@@ -2252,7 +2063,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP173:%.*]] = extractelement <16 x i1> [[TMP16]], i32 15
 ; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP173]], label [[PRED_LOAD_IF61:%.*]], label [[PRED_LOAD_CONTINUE62]]
 ; CHECK-INTERLEAVED:       pred.load.if61:
-; CHECK-INTERLEAVED-NEXT:    [[TMP174:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP15]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP174:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP15]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP175:%.*]] = load i8, ptr [[TMP174]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[TMP176:%.*]] = insertelement <16 x i8> [[TMP172]], i8 [[TMP175]], i32 15
 ; CHECK-INTERLEAVED-NEXT:    br label [[PRED_LOAD_CONTINUE62]]
@@ -2264,34 +2075,34 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP180]])
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 16
 ; CHECK-INTERLEAVED-NEXT:    [[VEC_IND_NEXT]] = add <16 x i64> [[VEC_IND]], splat (i64 16)
-; CHECK-INTERLEAVED-NEXT:    [[TMP182:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP182]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP181:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP181]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
-; CHECK-INTERLEAVED-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
+; CHECK-INTERLEAVED-NEXT:    [[TMP182:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
 ; CHECK-INTERLEAVED-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-INTERLEAVED:       scalar.ph:
 ; CHECK-INTERLEAVED-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-INTERLEAVED-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP183]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-INTERLEAVED-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP182]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
 ; CHECK-INTERLEAVED-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK-INTERLEAVED:       for.body:
 ; CHECK-INTERLEAVED-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
 ; CHECK-INTERLEAVED-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-INTERLEAVED-NEXT:    [[GEP_A2:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-INTERLEAVED-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_A2]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
 ; CHECK-INTERLEAVED-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
 ; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-INTERLEAVED:       exit:
-; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP183]], [[MIDDLE_BLOCK]] ]
+; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP182]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVED-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
-; CHECK-MAXBW-LABEL: define i32 @not_dotp_predicated_pragma(
+; CHECK-MAXBW-LABEL: define i32 @dotp_predicated(
 ; CHECK-MAXBW-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-MAXBW-NEXT:  entry:
 ; CHECK-MAXBW-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
@@ -2327,7 +2138,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP17:%.*]] = extractelement <16 x i1> [[TMP16]], i32 0
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP17]], label [[PRED_LOAD_IF:%.*]], label [[PRED_LOAD_CONTINUE:%.*]]
 ; CHECK-MAXBW:       pred.load.if:
-; CHECK-MAXBW-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-MAXBW-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
 ; CHECK-MAXBW-NEXT:    [[TMP19:%.*]] = load i8, ptr [[TMP18]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP20:%.*]] = insertelement <16 x i8> poison, i8 [[TMP19]], i32 0
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE]]
@@ -2336,7 +2147,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP22:%.*]] = extractelement <16 x i1> [[TMP16]], i32 1
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP22]], label [[PRED_LOAD_IF1:%.*]], label [[PRED_LOAD_CONTINUE2:%.*]]
 ; CHECK-MAXBW:       pred.load.if1:
-; CHECK-MAXBW-NEXT:    [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP1]]
+; CHECK-MAXBW-NEXT:    [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
 ; CHECK-MAXBW-NEXT:    [[TMP24:%.*]] = load i8, ptr [[TMP23]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP25:%.*]] = insertelement <16 x i8> [[TMP21]], i8 [[TMP24]], i32 1
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE2]]
@@ -2345,7 +2156,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP27:%.*]] = extractelement <16 x i1> [[TMP16]], i32 2
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP27]], label [[PRED_LOAD_IF3:%.*]], label [[PRED_LOAD_CONTINUE4:%.*]]
 ; CHECK-MAXBW:       pred.load.if3:
-; CHECK-MAXBW-NEXT:    [[TMP28:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP2]]
+; CHECK-MAXBW-NEXT:    [[TMP28:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP2]]
 ; CHECK-MAXBW-NEXT:    [[TMP29:%.*]] = load i8, ptr [[TMP28]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP30:%.*]] = insertelement <16 x i8> [[TMP26]], i8 [[TMP29]], i32 2
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE4]]
@@ -2354,7 +2165,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP32:%.*]] = extractelement <16 x i1> [[TMP16]], i32 3
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP32]], label [[PRED_LOAD_IF5:%.*]], label [[PRED_LOAD_CONTINUE6:%.*]]
 ; CHECK-MAXBW:       pred.load.if5:
-; CHECK-MAXBW-NEXT:    [[TMP33:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
+; CHECK-MAXBW-NEXT:    [[TMP33:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
 ; CHECK-MAXBW-NEXT:    [[TMP34:%.*]] = load i8, ptr [[TMP33]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP35:%.*]] = insertelement <16 x i8> [[TMP31]], i8 [[TMP34]], i32 3
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE6]]
@@ -2363,7 +2174,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP37:%.*]] = extractelement <16 x i1> [[TMP16]], i32 4
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP37]], label [[PRED_LOAD_IF7:%.*]], label [[PRED_LOAD_CONTINUE8:%.*]]
 ; CHECK-MAXBW:       pred.load.if7:
-; CHECK-MAXBW-NEXT:    [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP4]]
+; CHECK-MAXBW-NEXT:    [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]]
 ; CHECK-MAXBW-NEXT:    [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP40:%.*]] = insertelement <16 x i8> [[TMP36]], i8 [[TMP39]], i32 4
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE8]]
@@ -2372,7 +2183,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP42:%.*]] = extractelement <16 x i1> [[TMP16]], i32 5
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP42]], label [[PRED_LOAD_IF9:%.*]], label [[PRED_LOAD_CONTINUE10:%.*]]
 ; CHECK-MAXBW:       pred.load.if9:
-; CHECK-MAXBW-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP5]]
+; CHECK-MAXBW-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP5]]
 ; CHECK-MAXBW-NEXT:    [[TMP44:%.*]] = load i8, ptr [[TMP43]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP45:%.*]] = insertelement <16 x i8> [[TMP41]], i8 [[TMP44]], i32 5
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE10]]
@@ -2381,7 +2192,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP47:%.*]] = extractelement <16 x i1> [[TMP16]], i32 6
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP47]], label [[PRED_LOAD_IF11:%.*]], label [[PRED_LOAD_CONTINUE12:%.*]]
 ; CHECK-MAXBW:       pred.load.if11:
-; CHECK-MAXBW-NEXT:    [[TMP48:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-MAXBW-NEXT:    [[TMP48:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
 ; CHECK-MAXBW-NEXT:    [[TMP49:%.*]] = load i8, ptr [[TMP48]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP50:%.*]] = insertelement <16 x i8> [[TMP46]], i8 [[TMP49]], i32 6
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE12]]
@@ -2390,7 +2201,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP52:%.*]] = extractelement <16 x i1> [[TMP16]], i32 7
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP52]], label [[PRED_LOAD_IF13:%.*]], label [[PRED_LOAD_CONTINUE14:%.*]]
 ; CHECK-MAXBW:       pred.load.if13:
-; CHECK-MAXBW-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP7]]
+; CHECK-MAXBW-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP7]]
 ; CHECK-MAXBW-NEXT:    [[TMP54:%.*]] = load i8, ptr [[TMP53]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP55:%.*]] = insertelement <16 x i8> [[TMP51]], i8 [[TMP54]], i32 7
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE14]]
@@ -2399,7 +2210,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP57:%.*]] = extractelement <16 x i1> [[TMP16]], i32 8
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP57]], label [[PRED_LOAD_IF15:%.*]], label [[PRED_LOAD_CONTINUE16:%.*]]
 ; CHECK-MAXBW:       pred.load.if15:
-; CHECK-MAXBW-NEXT:    [[TMP58:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP8]]
+; CHECK-MAXBW-NEXT:    [[TMP58:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP8]]
 ; CHECK-MAXBW-NEXT:    [[TMP59:%.*]] = load i8, ptr [[TMP58]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP60:%.*]] = insertelement <16 x i8> [[TMP56]], i8 [[TMP59]], i32 8
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE16]]
@@ -2408,7 +2219,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP62:%.*]] = extractelement <16 x i1> [[TMP16]], i32 9
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP62]], label [[PRED_LOAD_IF17:%.*]], label [[PRED_LOAD_CONTINUE18:%.*]]
 ; CHECK-MAXBW:       pred.load.if17:
-; CHECK-MAXBW-NEXT:    [[TMP63:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-MAXBW-NEXT:    [[TMP63:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
 ; CHECK-MAXBW-NEXT:    [[TMP64:%.*]] = load i8, ptr [[TMP63]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP65:%.*]] = insertelement <16 x i8> [[TMP61]], i8 [[TMP64]], i32 9
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE18]]
@@ -2417,7 +2228,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP67:%.*]] = extractelement <16 x i1> [[TMP16]], i32 10
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP67]], label [[PRED_LOAD_IF19:%.*]], label [[PRED_LOAD_CONTINUE20:%.*]]
 ; CHECK-MAXBW:       pred.load.if19:
-; CHECK-MAXBW-NEXT:    [[TMP68:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-MAXBW-NEXT:    [[TMP68:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
 ; CHECK-MAXBW-NEXT:    [[TMP69:%.*]] = load i8, ptr [[TMP68]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP70:%.*]] = insertelement <16 x i8> [[TMP66]], i8 [[TMP69]], i32 10
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE20]]
@@ -2426,7 +2237,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP72:%.*]] = extractelement <16 x i1> [[TMP16]], i32 11
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP72]], label [[PRED_LOAD_IF21:%.*]], label [[PRED_LOAD_CONTINUE22:%.*]]
 ; CHECK-MAXBW:       pred.load.if21:
-; CHECK-MAXBW-NEXT:    [[TMP73:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP11]]
+; CHECK-MAXBW-NEXT:    [[TMP73:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP11]]
 ; CHECK-MAXBW-NEXT:    [[TMP74:%.*]] = load i8, ptr [[TMP73]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP75:%.*]] = insertelement <16 x i8> [[TMP71]], i8 [[TMP74]], i32 11
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE22]]
@@ -2435,7 +2246,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP77:%.*]] = extractelement <16 x i1> [[TMP16]], i32 12
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP77]], label [[PRED_LOAD_IF23:%.*]], label [[PRED_LOAD_CONTINUE24:%.*]]
 ; CHECK-MAXBW:       pred.load.if23:
-; CHECK-MAXBW-NEXT:    [[TMP78:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP12]]
+; CHECK-MAXBW-NEXT:    [[TMP78:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP12]]
 ; CHECK-MAXBW-NEXT:    [[TMP79:%.*]] = load i8, ptr [[TMP78]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP80:%.*]] = insertelement <16 x i8> [[TMP76]], i8 [[TMP79]], i32 12
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE24]]
@@ -2444,7 +2255,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP82:%.*]] = extractelement <16 x i1> [[TMP16]], i32 13
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP82]], label [[PRED_LOAD_IF25:%.*]], label [[PRED_LOAD_CONTINUE26:%.*]]
 ; CHECK-MAXBW:       pred.load.if25:
-; CHECK-MAXBW-NEXT:    [[TMP83:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP13]]
+; CHECK-MAXBW-NEXT:    [[TMP83:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP13]]
 ; CHECK-MAXBW-NEXT:    [[TMP84:%.*]] = load i8, ptr [[TMP83]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP85:%.*]] = insertelement <16 x i8> [[TMP81]], i8 [[TMP84]], i32 13
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE26]]
@@ -2453,7 +2264,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP87:%.*]] = extractelement <16 x i1> [[TMP16]], i32 14
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP87]], label [[PRED_LOAD_IF27:%.*]], label [[PRED_LOAD_CONTINUE28:%.*]]
 ; CHECK-MAXBW:       pred.load.if27:
-; CHECK-MAXBW-NEXT:    [[TMP88:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP14]]
+; CHECK-MAXBW-NEXT:    [[TMP88:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP14]]
 ; CHECK-MAXBW-NEXT:    [[TMP89:%.*]] = load i8, ptr [[TMP88]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP90:%.*]] = insertelement <16 x i8> [[TMP86]], i8 [[TMP89]], i32 14
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE28]]
@@ -2462,7 +2273,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP92:%.*]] = extractelement <16 x i1> [[TMP16]], i32 15
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP92]], label [[PRED_LOAD_IF29:%.*]], label [[PRED_LOAD_CONTINUE30:%.*]]
 ; CHECK-MAXBW:       pred.load.if29:
-; CHECK-MAXBW-NEXT:    [[TMP93:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP15]]
+; CHECK-MAXBW-NEXT:    [[TMP93:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP15]]
 ; CHECK-MAXBW-NEXT:    [[TMP94:%.*]] = load i8, ptr [[TMP93]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP95:%.*]] = insertelement <16 x i8> [[TMP91]], i8 [[TMP94]], i32 15
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE30]]
@@ -2472,7 +2283,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP98:%.*]] = extractelement <16 x i1> [[TMP16]], i32 0
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP98]], label [[PRED_LOAD_IF31:%.*]], label [[PRED_LOAD_CONTINUE32:%.*]]
 ; CHECK-MAXBW:       pred.load.if31:
-; CHECK-MAXBW-NEXT:    [[TMP99:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-MAXBW-NEXT:    [[TMP99:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
 ; CHECK-MAXBW-NEXT:    [[TMP100:%.*]] = load i8, ptr [[TMP99]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP101:%.*]] = insertelement <16 x i8> poison, i8 [[TMP100]], i32 0
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE32]]
@@ -2481,7 +2292,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP103:%.*]] = extractelement <16 x i1> [[TMP16]], i32 1
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP103]], label [[PRED_LOAD_IF33:%.*]], label [[PRED_LOAD_CONTINUE34:%.*]]
 ; CHECK-MAXBW:       pred.load.if33:
-; CHECK-MAXBW-NEXT:    [[TMP104:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
+; CHECK-MAXBW-NEXT:    [[TMP104:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP1]]
 ; CHECK-MAXBW-NEXT:    [[TMP105:%.*]] = load i8, ptr [[TMP104]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP106:%.*]] = insertelement <16 x i8> [[TMP102]], i8 [[TMP105]], i32 1
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE34]]
@@ -2490,7 +2301,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP108:%.*]] = extractelement <16 x i1> [[TMP16]], i32 2
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP108]], label [[PRED_LOAD_IF35:%.*]], label [[PRED_LOAD_CONTINUE36:%.*]]
 ; CHECK-MAXBW:       pred.load.if35:
-; CHECK-MAXBW-NEXT:    [[TMP109:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP2]]
+; CHECK-MAXBW-NEXT:    [[TMP109:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP2]]
 ; CHECK-MAXBW-NEXT:    [[TMP110:%.*]] = load i8, ptr [[TMP109]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP111:%.*]] = insertelement <16 x i8> [[TMP107]], i8 [[TMP110]], i32 2
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE36]]
@@ -2499,7 +2310,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP113:%.*]] = extractelement <16 x i1> [[TMP16]], i32 3
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP113]], label [[PRED_LOAD_IF37:%.*]], label [[PRED_LOAD_CONTINUE38:%.*]]
 ; CHECK-MAXBW:       pred.load.if37:
-; CHECK-MAXBW-NEXT:    [[TMP114:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
+; CHECK-MAXBW-NEXT:    [[TMP114:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
 ; CHECK-MAXBW-NEXT:    [[TMP115:%.*]] = load i8, ptr [[TMP114]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP116:%.*]] = insertelement <16 x i8> [[TMP112]], i8 [[TMP115]], i32 3
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE38]]
@@ -2508,7 +2319,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP118:%.*]] = extractelement <16 x i1> [[TMP16]], i32 4
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP118]], label [[PRED_LOAD_IF39:%.*]], label [[PRED_LOAD_CONTINUE40:%.*]]
 ; CHECK-MAXBW:       pred.load.if39:
-; CHECK-MAXBW-NEXT:    [[TMP119:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]]
+; CHECK-MAXBW-NEXT:    [[TMP119:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP4]]
 ; CHECK-MAXBW-NEXT:    [[TMP120:%.*]] = load i8, ptr [[TMP119]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP121:%.*]] = insertelement <16 x i8> [[TMP117]], i8 [[TMP120]], i32 4
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE40]]
@@ -2517,7 +2328,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP123:%.*]] = extractelement <16 x i1> [[TMP16]], i32 5
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP123]], label [[PRED_LOAD_IF41:%.*]], label [[PRED_LOAD_CONTINUE42:%.*]]
 ; CHECK-MAXBW:       pred.load.if41:
-; CHECK-MAXBW-NEXT:    [[TMP124:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP5]]
+; CHECK-MAXBW-NEXT:    [[TMP124:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP5]]
 ; CHECK-MAXBW-NEXT:    [[TMP125:%.*]] = load i8, ptr [[TMP124]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP126:%.*]] = insertelement <16 x i8> [[TMP122]], i8 [[TMP125]], i32 5
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE42]]
@@ -2526,7 +2337,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP128:%.*]] = extractelement <16 x i1> [[TMP16]], i32 6
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP128]], label [[PRED_LOAD_IF43:%.*]], label [[PRED_LOAD_CONTINUE44:%.*]]
 ; CHECK-MAXBW:       pred.load.if43:
-; CHECK-MAXBW-NEXT:    [[TMP129:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-MAXBW-NEXT:    [[TMP129:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
 ; CHECK-MAXBW-NEXT:    [[TMP130:%.*]] = load i8, ptr [[TMP129]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP131:%.*]] = insertelement <16 x i8> [[TMP127]], i8 [[TMP130]], i32 6
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE44]]
@@ -2535,7 +2346,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP133:%.*]] = extractelement <16 x i1> [[TMP16]], i32 7
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP133]], label [[PRED_LOAD_IF45:%.*]], label [[PRED_LOAD_CONTINUE46:%.*]]
 ; CHECK-MAXBW:       pred.load.if45:
-; CHECK-MAXBW-NEXT:    [[TMP134:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP7]]
+; CHECK-MAXBW-NEXT:    [[TMP134:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP7]]
 ; CHECK-MAXBW-NEXT:    [[TMP135:%.*]] = load i8, ptr [[TMP134]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP136:%.*]] = insertelement <16 x i8> [[TMP132]], i8 [[TMP135]], i32 7
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE46]]
@@ -2544,7 +2355,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP138:%.*]] = extractelement <16 x i1> [[TMP16]], i32 8
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP138]], label [[PRED_LOAD_IF47:%.*]], label [[PRED_LOAD_CONTINUE48:%.*]]
 ; CHECK-MAXBW:       pred.load.if47:
-; CHECK-MAXBW-NEXT:    [[TMP139:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP8]]
+; CHECK-MAXBW-NEXT:    [[TMP139:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP8]]
 ; CHECK-MAXBW-NEXT:    [[TMP140:%.*]] = load i8, ptr [[TMP139]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP141:%.*]] = insertelement <16 x i8> [[TMP137]], i8 [[TMP140]], i32 8
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE48]]
@@ -2553,7 +2364,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP143:%.*]] = extractelement <16 x i1> [[TMP16]], i32 9
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP143]], label [[PRED_LOAD_IF49:%.*]], label [[PRED_LOAD_CONTINUE50:%.*]]
 ; CHECK-MAXBW:       pred.load.if49:
-; CHECK-MAXBW-NEXT:    [[TMP144:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
+; CHECK-MAXBW-NEXT:    [[TMP144:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
 ; CHECK-MAXBW-NEXT:    [[TMP145:%.*]] = load i8, ptr [[TMP144]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP146:%.*]] = insertelement <16 x i8> [[TMP142]], i8 [[TMP145]], i32 9
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE50]]
@@ -2562,7 +2373,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP148:%.*]] = extractelement <16 x i1> [[TMP16]], i32 10
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP148]], label [[PRED_LOAD_IF51:%.*]], label [[PRED_LOAD_CONTINUE52:%.*]]
 ; CHECK-MAXBW:       pred.load.if51:
-; CHECK-MAXBW-NEXT:    [[TMP149:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
+; CHECK-MAXBW-NEXT:    [[TMP149:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
 ; CHECK-MAXBW-NEXT:    [[TMP150:%.*]] = load i8, ptr [[TMP149]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP151:%.*]] = insertelement <16 x i8> [[TMP147]], i8 [[TMP150]], i32 10
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE52]]
@@ -2571,7 +2382,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP153:%.*]] = extractelement <16 x i1> [[TMP16]], i32 11
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP153]], label [[PRED_LOAD_IF53:%.*]], label [[PRED_LOAD_CONTINUE54:%.*]]
 ; CHECK-MAXBW:       pred.load.if53:
-; CHECK-MAXBW-NEXT:    [[TMP154:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP11]]
+; CHECK-MAXBW-NEXT:    [[TMP154:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP11]]
 ; CHECK-MAXBW-NEXT:    [[TMP155:%.*]] = load i8, ptr [[TMP154]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP156:%.*]] = insertelement <16 x i8> [[TMP152]], i8 [[TMP155]], i32 11
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE54]]
@@ -2580,7 +2391,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP158:%.*]] = extractelement <16 x i1> [[TMP16]], i32 12
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP158]], label [[PRED_LOAD_IF55:%.*]], label [[PRED_LOAD_CONTINUE56:%.*]]
 ; CHECK-MAXBW:       pred.load.if55:
-; CHECK-MAXBW-NEXT:    [[TMP159:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP12]]
+; CHECK-MAXBW-NEXT:    [[TMP159:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP12]]
 ; CHECK-MAXBW-NEXT:    [[TMP160:%.*]] = load i8, ptr [[TMP159]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP161:%.*]] = insertelement <16 x i8> [[TMP157]], i8 [[TMP160]], i32 12
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE56]]
@@ -2589,7 +2400,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP163:%.*]] = extractelement <16 x i1> [[TMP16]], i32 13
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP163]], label [[PRED_LOAD_IF57:%.*]], label [[PRED_LOAD_CONTINUE58:%.*]]
 ; CHECK-MAXBW:       pred.load.if57:
-; CHECK-MAXBW-NEXT:    [[TMP164:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP13]]
+; CHECK-MAXBW-NEXT:    [[TMP164:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP13]]
 ; CHECK-MAXBW-NEXT:    [[TMP165:%.*]] = load i8, ptr [[TMP164]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP166:%.*]] = insertelement <16 x i8> [[TMP162]], i8 [[TMP165]], i32 13
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE58]]
@@ -2598,7 +2409,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP168:%.*]] = extractelement <16 x i1> [[TMP16]], i32 14
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP168]], label [[PRED_LOAD_IF59:%.*]], label [[PRED_LOAD_CONTINUE60:%.*]]
 ; CHECK-MAXBW:       pred.load.if59:
-; CHECK-MAXBW-NEXT:    [[TMP169:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP14]]
+; CHECK-MAXBW-NEXT:    [[TMP169:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP14]]
 ; CHECK-MAXBW-NEXT:    [[TMP170:%.*]] = load i8, ptr [[TMP169]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP171:%.*]] = insertelement <16 x i8> [[TMP167]], i8 [[TMP170]], i32 14
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE60]]
@@ -2607,7 +2418,7 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP173:%.*]] = extractelement <16 x i1> [[TMP16]], i32 15
 ; CHECK-MAXBW-NEXT:    br i1 [[TMP173]], label [[PRED_LOAD_IF61:%.*]], label [[PRED_LOAD_CONTINUE62]]
 ; CHECK-MAXBW:       pred.load.if61:
-; CHECK-MAXBW-NEXT:    [[TMP174:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP15]]
+; CHECK-MAXBW-NEXT:    [[TMP174:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP15]]
 ; CHECK-MAXBW-NEXT:    [[TMP175:%.*]] = load i8, ptr [[TMP174]], align 1
 ; CHECK-MAXBW-NEXT:    [[TMP176:%.*]] = insertelement <16 x i8> [[TMP172]], i8 [[TMP175]], i32 15
 ; CHECK-MAXBW-NEXT:    br label [[PRED_LOAD_CONTINUE62]]
@@ -2619,31 +2430,31 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP180]])
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 16
 ; CHECK-MAXBW-NEXT:    [[VEC_IND_NEXT]] = add <16 x i64> [[VEC_IND]], splat (i64 16)
-; CHECK-MAXBW-NEXT:    [[TMP182:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[TMP182]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
+; CHECK-MAXBW-NEXT:    [[TMP181:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-MAXBW-NEXT:    br i1 [[TMP181]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
-; CHECK-MAXBW-NEXT:    [[TMP183:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
+; CHECK-MAXBW-NEXT:    [[TMP182:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
 ; CHECK-MAXBW-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-MAXBW:       scalar.ph:
 ; CHECK-MAXBW-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-MAXBW-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP183]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-MAXBW-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP182]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
 ; CHECK-MAXBW-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK-MAXBW:       for.body:
 ; CHECK-MAXBW-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
 ; CHECK-MAXBW-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-MAXBW-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
 ; CHECK-MAXBW-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
 ; CHECK-MAXBW-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-MAXBW-NEXT:    [[GEP_A2:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-MAXBW-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_A2]], align 1
+; CHECK-MAXBW-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-MAXBW-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
 ; CHECK-MAXBW-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
 ; CHECK-MAXBW-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
 ; CHECK-MAXBW-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
 ; CHECK-MAXBW-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-MAXBW-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-MAXBW:       exit:
-; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP183]], [[MIDDLE_BLOCK]] ]
+; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP182]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
 entry:
@@ -2652,11 +2463,11 @@ entry:
 for.body:                                         ; preds = %entry, %for.body
   %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
   %accum = phi i32 [ 0, %entry ], [ %add, %for.body ]
-  %gep.a = getelementptr inbounds i8, ptr %b, i64 %iv
+  %gep.a = getelementptr inbounds i8, ptr %a, i64 %iv
   %load.a = load i8, ptr %gep.a, align 1
   %ext.a = sext i8 %load.a to i32
-  %gep.a2 = getelementptr inbounds i8, ptr %a, i64 %iv
-  %load.b = load i8, ptr %gep.a2, align 1
+  %gep.b = getelementptr inbounds i8, ptr %b, i64 %iv
+  %load.b = load i8, ptr %gep.b, align 1
   %ext.b = sext i8 %load.b to i32
   %mul = mul nsw i32 %ext.b, %ext.a
   %add = add nsw i32 %mul, %accum
@@ -2691,7 +2502,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP8]] = add <16 x i32> [[TMP7]], [[VEC_PHI]]
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
 ; CHECK-INTERLEAVE1:       middle.block:
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP10:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP8]])
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP11:%.*]] = extractelement <16 x i32> [[TMP6]], i32 15
@@ -2713,7 +2524,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) {
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVE1-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
 ; CHECK-INTERLEAVE1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
 ; CHECK-INTERLEAVE1:       for.exit:
 ; CHECK-INTERLEAVE1-NEXT:    [[EXT_B_LCSSA:%.*]] = phi i32 [ [[EXT_B]], [[FOR_BODY]] ], [ [[TMP11]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP10]], [[MIDDLE_BLOCK]] ]
@@ -2751,7 +2562,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP14]] = add <16 x i32> [[TMP12]], [[VEC_PHI1]]
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
 ; CHECK-INTERLEAVED-NEXT:    [[TMP15:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
 ; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add <16 x i32> [[TMP14]], [[TMP13]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP16:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[BIN_RDX]])
@@ -2774,7 +2585,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) {
 ; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
-; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
 ; CHECK-INTERLEAVED:       for.exit:
 ; CHECK-INTERLEAVED-NEXT:    [[EXT_B_LCSSA:%.*]] = phi i32 [ [[EXT_B]], [[FOR_BODY]] ], [ [[TMP17]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
@@ -2803,7 +2614,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[TMP8]] = add <16 x i32> [[TMP7]], [[VEC_PHI]]
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
 ; CHECK-MAXBW-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
-; CHECK-MAXBW-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
 ; CHECK-MAXBW-NEXT:    [[TMP10:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP8]])
 ; CHECK-MAXBW-NEXT:    [[TMP11:%.*]] = extractelement <16 x i32> [[TMP6]], i32 15
@@ -2825,7 +2636,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
 ; CHECK-MAXBW-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
 ; CHECK-MAXBW-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
-; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
 ; CHECK-MAXBW:       for.exit:
 ; CHECK-MAXBW-NEXT:    [[EXT_B_LCSSA:%.*]] = phi i32 [ [[EXT_B]], [[FOR_BODY]] ], [ [[TMP11]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP10]], [[MIDDLE_BLOCK]] ]
@@ -2872,13 +2683,11 @@ for.exit:                        ; preds = %for.body
 ; CHECK-INTERLEAVE1: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVE1: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVE1: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVE1: [[LOOP12]] = distinct !{[[LOOP12]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVE1: [[LOOP13]] = distinct !{[[LOOP13]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVE1: [[LOOP14]] = distinct !{[[LOOP14]], [[META15:![0-9]+]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVE1: [[META15]] = !{!"llvm.loop.mustprogress"}
-; CHECK-INTERLEAVE1: [[LOOP16]] = distinct !{[[LOOP16]], [[META15]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVE1: [[LOOP17]] = distinct !{[[LOOP17]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVE1: [[LOOP18]] = distinct !{[[LOOP18]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVE1: [[LOOP12]] = distinct !{[[LOOP12]], [[META13:![0-9]+]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVE1: [[META13]] = !{!"llvm.loop.mustprogress"}
+; CHECK-INTERLEAVE1: [[LOOP14]] = distinct !{[[LOOP14]], [[META13]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVE1: [[LOOP15]] = distinct !{[[LOOP15]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVE1: [[LOOP16]] = distinct !{[[LOOP16]], [[META2]], [[META1]]}
 ;.
 ; CHECK-INTERLEAVED: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
 ; CHECK-INTERLEAVED: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
@@ -2892,13 +2701,11 @@ for.exit:                        ; preds = %for.body
 ; CHECK-INTERLEAVED: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVED: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVED: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVED: [[LOOP12]] = distinct !{[[LOOP12]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVED: [[LOOP13]] = distinct !{[[LOOP13]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVED: [[LOOP14]] = distinct !{[[LOOP14]], [[META15:![0-9]+]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVED: [[META15]] = !{!"llvm.loop.mustprogress"}
-; CHECK-INTERLEAVED: [[LOOP16]] = distinct !{[[LOOP16]], [[META15]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVED: [[LOOP17]] = distinct !{[[LOOP17]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVED: [[LOOP18]] = distinct !{[[LOOP18]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVED: [[LOOP12]] = distinct !{[[LOOP12]], [[META13:![0-9]+]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVED: [[META13]] = !{!"llvm.loop.mustprogress"}
+; CHECK-INTERLEAVED: [[LOOP14]] = distinct !{[[LOOP14]], [[META13]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVED: [[LOOP15]] = distinct !{[[LOOP15]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVED: [[LOOP16]] = distinct !{[[LOOP16]], [[META2]], [[META1]]}
 ;.
 ; CHECK-MAXBW: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
 ; CHECK-MAXBW: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
@@ -2912,11 +2719,9 @@ for.exit:                        ; preds = %for.body
 ; CHECK-MAXBW: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
 ; CHECK-MAXBW: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
 ; CHECK-MAXBW: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
-; CHECK-MAXBW: [[LOOP12]] = distinct !{[[LOOP12]], [[META1]], [[META2]]}
-; CHECK-MAXBW: [[LOOP13]] = distinct !{[[LOOP13]], [[META2]], [[META1]]}
-; CHECK-MAXBW: [[LOOP14]] = distinct !{[[LOOP14]], [[META15:![0-9]+]], [[META1]], [[META2]]}
-; CHECK-MAXBW: [[META15]] = !{!"llvm.loop.mustprogress"}
-; CHECK-MAXBW: [[LOOP16]] = distinct !{[[LOOP16]], [[META15]], [[META2]], [[META1]]}
-; CHECK-MAXBW: [[LOOP17]] = distinct !{[[LOOP17]], [[META1]], [[META2]]}
-; CHECK-MAXBW: [[LOOP18]] = distinct !{[[LOOP18]], [[META2]], [[META1]]}
+; CHECK-MAXBW: [[LOOP12]] = distinct !{[[LOOP12]], [[META13:![0-9]+]], [[META1]], [[META2]]}
+; CHECK-MAXBW: [[META13]] = !{!"llvm.loop.mustprogress"}
+; CHECK-MAXBW: [[LOOP14]] = distinct !{[[LOOP14]], [[META13]], [[META2]], [[META1]]}
+; CHECK-MAXBW: [[LOOP15]] = distinct !{[[LOOP15]], [[META1]], [[META2]]}
+; CHECK-MAXBW: [[LOOP16]] = distinct !{[[LOOP16]], [[META2]], [[META1]]}
 ;.
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 a2a2d231c81d11..32833231d98bc5 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
@@ -1625,259 +1625,48 @@ exit:                                        ; preds = %for.body
   ret i32 %result
 }
 
-define i32 @not_dotp_predicated(i64 %N, ptr %a, ptr %b) #0 {
-; CHECK-INTERLEAVE1-LABEL: define i32 @not_dotp_predicated(
-; CHECK-INTERLEAVE1-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
-; CHECK-INTERLEAVE1-NEXT:  entry:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVE1-NEXT:    [[TMP7:%.*]] = mul i64 [[TMP6]], 4
-; CHECK-INTERLEAVE1-NEXT:    [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], [[TMP7]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
-; CHECK-INTERLEAVE1:       vector.ph:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVE1-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP10]], 4
-; CHECK-INTERLEAVE1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]]
-; CHECK-INTERLEAVE1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP11:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVE1-NEXT:    [[TMP15:%.*]] = mul i64 [[TMP11]], 4
-; CHECK-INTERLEAVE1-NEXT:    br label [[VECTOR_BODY:%.*]]
-; CHECK-INTERLEAVE1:       vector.body:
-; CHECK-INTERLEAVE1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP14:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
-; CHECK-INTERLEAVE1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0
-; CHECK-INTERLEAVE1-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP2]], align 1
-; CHECK-INTERLEAVE1-NEXT:    [[TMP9:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
-; CHECK-INTERLEAVE1-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 0
-; CHECK-INTERLEAVE1-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 4 x i8>, ptr [[TMP5]], align 1
-; CHECK-INTERLEAVE1-NEXT:    [[TMP12:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD1]] to <vscale x 4 x i32>
-; CHECK-INTERLEAVE1-NEXT:    [[TMP13:%.*]] = mul nsw <vscale x 4 x i32> [[TMP12]], [[TMP9]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP14]] = add <vscale x 4 x i32> [[TMP13]], [[VEC_PHI]]
-; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP15]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
-; CHECK-INTERLEAVE1:       middle.block:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP16:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP14]])
-; CHECK-INTERLEAVE1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_PH]]
-; CHECK-INTERLEAVE1:       scalar.ph:
-; CHECK-INTERLEAVE1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP16]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
-; CHECK-INTERLEAVE1-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK-INTERLEAVE1:       for.body:
-; CHECK-INTERLEAVE1-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[VEC_EPILOG_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-INTERLEAVE1-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
-; CHECK-INTERLEAVE1-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-INTERLEAVE1-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
-; CHECK-INTERLEAVE1-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
-; CHECK-INTERLEAVE1-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
-; CHECK-INTERLEAVE1-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
-; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
-; CHECK-INTERLEAVE1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
-; CHECK-INTERLEAVE1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
-; CHECK-INTERLEAVE1:       exit:
-; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
-; CHECK-INTERLEAVE1-NEXT:    ret i32 [[ADD_LCSSA]]
-;
-; CHECK-INTERLEAVED-LABEL: define i32 @not_dotp_predicated(
-; CHECK-INTERLEAVED-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
-; CHECK-INTERLEAVED-NEXT:  entry:
-; CHECK-INTERLEAVED-NEXT:    [[TMP8:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVED-NEXT:    [[TMP14:%.*]] = mul i64 [[TMP8]], 8
-; CHECK-INTERLEAVED-NEXT:    [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], [[TMP14]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
-; CHECK-INTERLEAVED:       vector.ph:
-; CHECK-INTERLEAVED-NEXT:    [[TMP15:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVED-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP15]], 8
-; CHECK-INTERLEAVED-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]]
-; CHECK-INTERLEAVED-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVED-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 8
-; 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 <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP23:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI1:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP24:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
-; CHECK-INTERLEAVED-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = mul i64 [[TMP9]], 4
-; CHECK-INTERLEAVED-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i64 [[TMP10]]
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP2]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD2:%.*]] = load <vscale x 4 x i8>, ptr [[TMP11]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP12:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP25:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD2]] to <vscale x 4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, ptr [[TMP6]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVED-NEXT:    [[TMP17:%.*]] = mul i64 [[TMP16]], 4
-; CHECK-INTERLEAVED-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[TMP6]], i64 [[TMP17]]
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD3:%.*]] = load <vscale x 4 x i8>, ptr [[TMP7]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_LOAD4:%.*]] = load <vscale x 4 x i8>, ptr [[TMP18]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[TMP19:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD3]] to <vscale x 4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP20:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD4]] to <vscale x 4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP21:%.*]] = mul nsw <vscale x 4 x i32> [[TMP19]], [[TMP12]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP22:%.*]] = mul nsw <vscale x 4 x i32> [[TMP20]], [[TMP25]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP23]] = add <vscale x 4 x i32> [[TMP21]], [[VEC_PHI]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP24]] = add <vscale x 4 x i32> [[TMP22]], [[VEC_PHI1]]
-; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
-; CHECK-INTERLEAVED:       middle.block:
-; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add <vscale x 4 x i32> [[TMP24]], [[TMP23]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP26:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[BIN_RDX]])
-; CHECK-INTERLEAVED-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_PH]]
-; CHECK-INTERLEAVED:       scalar.ph:
-; CHECK-INTERLEAVED-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-INTERLEAVED-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP26]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
-; CHECK-INTERLEAVED-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK-INTERLEAVED:       for.body:
-; CHECK-INTERLEAVED-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[VEC_EPILOG_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-INTERLEAVED-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-INTERLEAVED-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
-; CHECK-INTERLEAVED-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
-; CHECK-INTERLEAVED-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
-; CHECK-INTERLEAVED-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
-; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
-; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
-; CHECK-INTERLEAVED-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
-; CHECK-INTERLEAVED:       exit:
-; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP26]], [[MIDDLE_BLOCK]] ]
-; CHECK-INTERLEAVED-NEXT:    ret i32 [[ADD_LCSSA]]
-;
-; CHECK-MAXBW-LABEL: define i32 @not_dotp_predicated(
-; CHECK-MAXBW-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
-; CHECK-MAXBW-NEXT:  entry:
-; CHECK-MAXBW-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-MAXBW-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 8
-; CHECK-MAXBW-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], [[TMP1]]
-; CHECK-MAXBW-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
-; CHECK-MAXBW:       vector.ph:
-; CHECK-MAXBW-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-MAXBW-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP2]], 8
-; CHECK-MAXBW-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]]
-; CHECK-MAXBW-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
-; CHECK-MAXBW-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-MAXBW-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 8
-; CHECK-MAXBW-NEXT:    br label [[VECTOR_BODY:%.*]]
-; CHECK-MAXBW:       vector.body:
-; CHECK-MAXBW-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[VEC_PHI1:%.*]] = phi <vscale x 2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE5:%.*]], [[VECTOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 0
-; CHECK-MAXBW-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
-; CHECK-MAXBW-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i32 0
-; CHECK-MAXBW-NEXT:    [[WIDE_LOAD2:%.*]] = load <vscale x 8 x i8>, ptr [[TMP8]], align 1
-; CHECK-MAXBW-NEXT:    [[TMP13:%.*]] = sext <vscale x 8 x i8> [[WIDE_LOAD2]] to <vscale x 8 x i32>
-; CHECK-MAXBW-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
-; CHECK-MAXBW-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i32 0
-; CHECK-MAXBW-NEXT:    [[WIDE_LOAD4:%.*]] = load <vscale x 8 x i8>, ptr [[TMP15]], align 1
-; CHECK-MAXBW-NEXT:    [[TMP20:%.*]] = sext <vscale x 8 x i8> [[WIDE_LOAD4]] to <vscale x 8 x i32>
-; CHECK-MAXBW-NEXT:    [[TMP22:%.*]] = mul nsw <vscale x 8 x i32> [[TMP20]], [[TMP13]]
-; CHECK-MAXBW-NEXT:    [[PARTIAL_REDUCE5]] = call <vscale x 2 x i32> @llvm.experimental.vector.partial.reduce.add.nxv2i32.nxv8i32(<vscale x 2 x i32> [[VEC_PHI1]], <vscale x 8 x i32> [[TMP22]])
-; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
-; CHECK-MAXBW-NEXT:    [[TMP23:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[TMP23]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
-; CHECK-MAXBW:       middle.block:
-; CHECK-MAXBW-NEXT:    [[TMP16:%.*]] = call i32 @llvm.vector.reduce.add.nxv2i32(<vscale x 2 x i32> [[PARTIAL_REDUCE5]])
-; CHECK-MAXBW-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
-; CHECK-MAXBW:       scalar.ph:
-; CHECK-MAXBW-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-MAXBW-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP16]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
-; CHECK-MAXBW-NEXT:    br label [[FOR_BODY:%.*]]
-; CHECK-MAXBW:       for.body:
-; CHECK-MAXBW-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-MAXBW-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
-; CHECK-MAXBW-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-MAXBW-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
-; CHECK-MAXBW-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
-; CHECK-MAXBW-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
-; CHECK-MAXBW-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
-; CHECK-MAXBW-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
-; CHECK-MAXBW-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
-; CHECK-MAXBW-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
-; CHECK-MAXBW:       exit:
-; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
-; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
-;
-entry:
-  br label %for.body
-
-for.body:                                         ; preds = %entry, %for.body
-  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
-  %accum = phi i32 [ 0, %entry ], [ %add, %for.body ]
-  %gep.a = getelementptr inbounds i8, ptr %a, i64 %iv
-  %load.a = load i8, ptr %gep.a, align 1
-  %ext.a = sext i8 %load.a to i32
-  %gep.b = getelementptr inbounds i8, ptr %b, i64 %iv
-  %load.b = load i8, ptr %gep.b, align 1
-  %ext.b = sext i8 %load.b to i32
-  %mul = mul nsw i32 %ext.b, %ext.a
-  %add = add nsw i32 %mul, %accum
-  %iv.next = add nuw nsw i64 %iv, 1
-  %exitcond.not = icmp eq i64 %iv.next, %N
-  br i1 %exitcond.not, label %exit, label %for.body
-
-exit:                        ; preds = %for.body
-  ret i32 %add
-}
-
-define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) #0 {
-; CHECK-INTERLEAVE1-LABEL: define i32 @not_dotp_predicated_pragma(
+define i32 @dotp_predicated(i64 %N, ptr %a, ptr %b) #0 {
+; CHECK-INTERLEAVE1-LABEL: define i32 @dotp_predicated(
 ; CHECK-INTERLEAVE1-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-INTERLEAVE1-NEXT:  entry:
 ; CHECK-INTERLEAVE1-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
 ; CHECK-INTERLEAVE1:       vector.ph:
-; CHECK-INTERLEAVE1-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVE1-NEXT:    [[TMP10:%.*]] = mul i64 [[TMP9]], 4
-; CHECK-INTERLEAVE1-NEXT:    [[TMP11:%.*]] = sub i64 [[TMP10]], 1
-; CHECK-INTERLEAVE1-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP11]]
-; CHECK-INTERLEAVE1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP10]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVE1-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 4
+; CHECK-INTERLEAVE1-NEXT:    [[TMP2:%.*]] = sub i64 [[TMP1]], 1
+; CHECK-INTERLEAVE1-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP2]]
+; CHECK-INTERLEAVE1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
 ; CHECK-INTERLEAVE1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP12:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVE1-NEXT:    [[TMP14:%.*]] = mul i64 [[TMP12]], 4
-; CHECK-INTERLEAVE1-NEXT:    [[TMP15:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVE1-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP15]], 4
-; CHECK-INTERLEAVE1-NEXT:    [[TMP0:%.*]] = sub i64 [[N]], [[TMP6]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP1:%.*]] = icmp ugt i64 [[N]], [[TMP6]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i64 [[TMP0]], i64 0
+; CHECK-INTERLEAVE1-NEXT:    [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVE1-NEXT:    [[TMP4:%.*]] = mul i64 [[TMP3]], 4
+; CHECK-INTERLEAVE1-NEXT:    [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVE1-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP5]], 4
+; CHECK-INTERLEAVE1-NEXT:    [[TMP7:%.*]] = sub i64 [[N]], [[TMP6]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP8:%.*]] = icmp ugt i64 [[N]], [[TMP6]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP9:%.*]] = select i1 [[TMP8]], i64 [[TMP7]], i64 0
 ; CHECK-INTERLEAVE1-NEXT:    [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[N]])
 ; CHECK-INTERLEAVE1-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK-INTERLEAVE1:       vector.body:
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP19:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 0
-; CHECK-INTERLEAVE1-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 0
-; CHECK-INTERLEAVE1-NEXT:    [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP5]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
+; CHECK-INTERLEAVE1-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], 0
+; CHECK-INTERLEAVE1-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
+; CHECK-INTERLEAVE1-NEXT:    [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP12]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP13:%.*]] = sext <vscale x 4 x i8> [[WIDE_MASKED_LOAD]] to <vscale x 4 x i32>
-; CHECK-INTERLEAVE1-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
-; CHECK-INTERLEAVE1-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i32 0
-; CHECK-INTERLEAVE1-NEXT:    [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP8]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
+; CHECK-INTERLEAVE1-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-INTERLEAVE1-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i32 0
+; CHECK-INTERLEAVE1-NEXT:    [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP15]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP16:%.*]] = sext <vscale x 4 x i8> [[WIDE_MASKED_LOAD1]] to <vscale x 4 x i32>
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP17:%.*]] = mul nsw <vscale x 4 x i32> [[TMP16]], [[TMP13]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP18:%.*]] = add <vscale x 4 x i32> [[TMP17]], [[VEC_PHI]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP19]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> [[TMP18]], <vscale x 4 x i32> [[VEC_PHI]]
-; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP14]]
-; CHECK-INTERLEAVE1-NEXT:    [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX]], i64 [[TMP2]])
+; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
+; CHECK-INTERLEAVE1-NEXT:    [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX]], i64 [[TMP9]])
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP20:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], splat (i1 true)
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP21:%.*]] = extractelement <vscale x 4 x i1> [[TMP20]], i32 0
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
 ; CHECK-INTERLEAVE1:       middle.block:
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP22:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP19]])
 ; CHECK-INTERLEAVE1-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
@@ -1888,62 +1677,62 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVE1:       for.body:
 ; CHECK-INTERLEAVE1-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVE1-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
 ; CHECK-INTERLEAVE1-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-INTERLEAVE1-NEXT:    [[GEP_A2:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-INTERLEAVE1-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_A2]], align 1
+; CHECK-INTERLEAVE1-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVE1-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
 ; CHECK-INTERLEAVE1-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
 ; CHECK-INTERLEAVE1-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVE1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-INTERLEAVE1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-INTERLEAVE1:       exit:
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP22]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVE1-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
-; CHECK-INTERLEAVED-LABEL: define i32 @not_dotp_predicated_pragma(
+; CHECK-INTERLEAVED-LABEL: define i32 @dotp_predicated(
 ; CHECK-INTERLEAVED-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-INTERLEAVED-NEXT:  entry:
 ; CHECK-INTERLEAVED-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
 ; CHECK-INTERLEAVED:       vector.ph:
-; CHECK-INTERLEAVED-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = mul i64 [[TMP9]], 4
-; CHECK-INTERLEAVED-NEXT:    [[TMP11:%.*]] = sub i64 [[TMP10]], 1
-; CHECK-INTERLEAVED-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP11]]
-; CHECK-INTERLEAVED-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVED-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 4
+; CHECK-INTERLEAVED-NEXT:    [[TMP2:%.*]] = sub i64 [[TMP1]], 1
+; CHECK-INTERLEAVED-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP2]]
+; CHECK-INTERLEAVED-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
 ; CHECK-INTERLEAVED-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP12:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVED-NEXT:    [[TMP14:%.*]] = mul i64 [[TMP12]], 4
-; CHECK-INTERLEAVED-NEXT:    [[TMP15:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-INTERLEAVED-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP15]], 4
-; CHECK-INTERLEAVED-NEXT:    [[TMP0:%.*]] = sub i64 [[N]], [[TMP6]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP1:%.*]] = icmp ugt i64 [[N]], [[TMP6]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i64 [[TMP0]], i64 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVED-NEXT:    [[TMP4:%.*]] = mul i64 [[TMP3]], 4
+; CHECK-INTERLEAVED-NEXT:    [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-INTERLEAVED-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP5]], 4
+; CHECK-INTERLEAVED-NEXT:    [[TMP7:%.*]] = sub i64 [[N]], [[TMP6]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP8:%.*]] = icmp ugt i64 [[N]], [[TMP6]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP9:%.*]] = select i1 [[TMP8]], i64 [[TMP7]], i64 0
 ; CHECK-INTERLEAVED-NEXT:    [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[N]])
 ; 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:    [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP19:%.*]], [[VECTOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 0
-; CHECK-INTERLEAVED-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP5]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
+; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], 0
+; CHECK-INTERLEAVED-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP12]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
 ; CHECK-INTERLEAVED-NEXT:    [[TMP13:%.*]] = sext <vscale x 4 x i8> [[WIDE_MASKED_LOAD]] to <vscale x 4 x i32>
-; CHECK-INTERLEAVED-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
-; CHECK-INTERLEAVED-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i32 0
-; CHECK-INTERLEAVED-NEXT:    [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP8]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
+; CHECK-INTERLEAVED-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-INTERLEAVED-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i32 0
+; CHECK-INTERLEAVED-NEXT:    [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP15]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
 ; CHECK-INTERLEAVED-NEXT:    [[TMP16:%.*]] = sext <vscale x 4 x i8> [[WIDE_MASKED_LOAD1]] to <vscale x 4 x i32>
 ; CHECK-INTERLEAVED-NEXT:    [[TMP17:%.*]] = mul nsw <vscale x 4 x i32> [[TMP16]], [[TMP13]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP18:%.*]] = add <vscale x 4 x i32> [[TMP17]], [[VEC_PHI]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP19]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> [[TMP18]], <vscale x 4 x i32> [[VEC_PHI]]
-; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP14]]
-; CHECK-INTERLEAVED-NEXT:    [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX]], i64 [[TMP2]])
+; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
+; CHECK-INTERLEAVED-NEXT:    [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX]], i64 [[TMP9]])
 ; CHECK-INTERLEAVED-NEXT:    [[TMP20:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], splat (i1 true)
 ; CHECK-INTERLEAVED-NEXT:    [[TMP21:%.*]] = extractelement <vscale x 4 x i1> [[TMP20]], i32 0
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
 ; CHECK-INTERLEAVED-NEXT:    [[TMP22:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP19]])
 ; CHECK-INTERLEAVED-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
@@ -1954,22 +1743,22 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVED:       for.body:
 ; CHECK-INTERLEAVED-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-INTERLEAVED-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
 ; CHECK-INTERLEAVED-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-INTERLEAVED-NEXT:    [[GEP_A2:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-INTERLEAVED-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_A2]], align 1
+; CHECK-INTERLEAVED-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-INTERLEAVED-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
 ; CHECK-INTERLEAVED-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
 ; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-INTERLEAVED:       exit:
 ; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP22]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVED-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
-; CHECK-MAXBW-LABEL: define i32 @not_dotp_predicated_pragma(
+; CHECK-MAXBW-LABEL: define i32 @dotp_predicated(
 ; CHECK-MAXBW-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
 ; CHECK-MAXBW-NEXT:  entry:
 ; CHECK-MAXBW-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
@@ -1992,47 +1781,47 @@ define i32 @not_dotp_predicated_pragma(i64 %N, ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW:       vector.body:
 ; CHECK-MAXBW-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-MAXBW-NEXT:    [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 16 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP19:%.*]], [[VECTOR_BODY]] ]
+; CHECK-MAXBW-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-MAXBW-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], 0
-; CHECK-MAXBW-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-MAXBW-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
 ; CHECK-MAXBW-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
 ; CHECK-MAXBW-NEXT:    [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP12]], i32 1, <vscale x 16 x i1> [[ACTIVE_LANE_MASK]], <vscale x 16 x i8> poison)
 ; CHECK-MAXBW-NEXT:    [[TMP13:%.*]] = sext <vscale x 16 x i8> [[WIDE_MASKED_LOAD]] to <vscale x 16 x i32>
-; CHECK-MAXBW-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
+; CHECK-MAXBW-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
 ; CHECK-MAXBW-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i32 0
 ; CHECK-MAXBW-NEXT:    [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP15]], i32 1, <vscale x 16 x i1> [[ACTIVE_LANE_MASK]], <vscale x 16 x i8> poison)
 ; CHECK-MAXBW-NEXT:    [[TMP16:%.*]] = sext <vscale x 16 x i8> [[WIDE_MASKED_LOAD1]] to <vscale x 16 x i32>
 ; CHECK-MAXBW-NEXT:    [[TMP17:%.*]] = mul nsw <vscale x 16 x i32> [[TMP16]], [[TMP13]]
 ; CHECK-MAXBW-NEXT:    [[TMP18:%.*]] = select <vscale x 16 x i1> [[ACTIVE_LANE_MASK]], <vscale x 16 x i32> [[TMP17]], <vscale x 16 x i32> zeroinitializer
-; CHECK-MAXBW-NEXT:    [[TMP19]] = call <vscale x 4 x i32> @llvm.experimental.vector.partial.reduce.add.nxv4i32.nxv16i32(<vscale x 4 x i32> [[VEC_PHI]], <vscale x 16 x i32> [[TMP18]])
+; CHECK-MAXBW-NEXT:    [[PARTIAL_REDUCE]] = call <vscale x 4 x i32> @llvm.experimental.vector.partial.reduce.add.nxv4i32.nxv16i32(<vscale x 4 x i32> [[VEC_PHI]], <vscale x 16 x i32> [[TMP18]])
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
 ; CHECK-MAXBW-NEXT:    [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[INDEX]], i64 [[TMP9]])
-; CHECK-MAXBW-NEXT:    [[TMP21:%.*]] = xor <vscale x 16 x i1> [[ACTIVE_LANE_MASK_NEXT]], splat (i1 true)
-; CHECK-MAXBW-NEXT:    [[TMP20:%.*]] = extractelement <vscale x 16 x i1> [[TMP21]], i32 0
-; CHECK-MAXBW-NEXT:    br i1 [[TMP20]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
+; CHECK-MAXBW-NEXT:    [[TMP19:%.*]] = xor <vscale x 16 x i1> [[ACTIVE_LANE_MASK_NEXT]], splat (i1 true)
+; CHECK-MAXBW-NEXT:    [[TMP20:%.*]] = extractelement <vscale x 16 x i1> [[TMP19]], i32 0
+; CHECK-MAXBW-NEXT:    br i1 [[TMP20]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
-; CHECK-MAXBW-NEXT:    [[TMP22:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP19]])
+; CHECK-MAXBW-NEXT:    [[TMP21:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[PARTIAL_REDUCE]])
 ; CHECK-MAXBW-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK-MAXBW:       scalar.ph:
 ; CHECK-MAXBW-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
-; CHECK-MAXBW-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP22]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-MAXBW-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP21]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
 ; CHECK-MAXBW-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK-MAXBW:       for.body:
 ; CHECK-MAXBW-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
 ; CHECK-MAXBW-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
-; CHECK-MAXBW-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-MAXBW-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
 ; CHECK-MAXBW-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
 ; CHECK-MAXBW-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
-; CHECK-MAXBW-NEXT:    [[GEP_A2:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
-; CHECK-MAXBW-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_A2]], align 1
+; CHECK-MAXBW-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-MAXBW-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
 ; CHECK-MAXBW-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
 ; CHECK-MAXBW-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
 ; CHECK-MAXBW-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
 ; CHECK-MAXBW-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-MAXBW-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
 ; CHECK-MAXBW:       exit:
-; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP22]], [[MIDDLE_BLOCK]] ]
+; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP21]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
 entry:
@@ -2041,11 +1830,11 @@ entry:
 for.body:                                         ; preds = %entry, %for.body
   %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
   %accum = phi i32 [ 0, %entry ], [ %add, %for.body ]
-  %gep.a = getelementptr inbounds i8, ptr %b, i64 %iv
+  %gep.a = getelementptr inbounds i8, ptr %a, i64 %iv
   %load.a = load i8, ptr %gep.a, align 1
   %ext.a = sext i8 %load.a to i32
-  %gep.a2 = getelementptr inbounds i8, ptr %a, i64 %iv
-  %load.b = load i8, ptr %gep.a2, align 1
+  %gep.b = getelementptr inbounds i8, ptr %b, i64 %iv
+  %load.b = load i8, ptr %gep.b, align 1
   %ext.b = sext i8 %load.b to i32
   %mul = mul nsw i32 %ext.b, %ext.a
   %add = add nsw i32 %mul, %accum
@@ -2088,7 +1877,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP14]] = add <vscale x 4 x i32> [[TMP13]], [[VEC_PHI]]
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP15:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
 ; CHECK-INTERLEAVE1:       middle.block:
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP16:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP14]])
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP17:%.*]] = call i32 @llvm.vscale.i32()
@@ -2114,7 +1903,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVE1-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
 ; CHECK-INTERLEAVE1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
 ; CHECK-INTERLEAVE1:       for.exit:
 ; CHECK-INTERLEAVE1-NEXT:    [[EXT_B_LCSSA:%.*]] = phi i32 [ [[EXT_B]], [[FOR_BODY]] ], [ [[TMP20]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
@@ -2164,7 +1953,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP24]] = add <vscale x 4 x i32> [[TMP22]], [[VEC_PHI1]]
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP25:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
 ; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add <vscale x 4 x i32> [[TMP24]], [[TMP23]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP26:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[BIN_RDX]])
@@ -2191,7 +1980,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
-; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
 ; CHECK-INTERLEAVED:       for.exit:
 ; CHECK-INTERLEAVED-NEXT:    [[EXT_B_LCSSA:%.*]] = phi i32 [ [[EXT_B]], [[FOR_BODY]] ], [ [[TMP30]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP26]], [[MIDDLE_BLOCK]] ]
@@ -2228,7 +2017,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[TMP24]] = add <vscale x 8 x i32> [[TMP22]], [[VEC_PHI1]]
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
 ; CHECK-MAXBW-NEXT:    [[TMP25:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
 ; CHECK-MAXBW-NEXT:    [[TMP16:%.*]] = call i32 @llvm.vector.reduce.add.nxv8i32(<vscale x 8 x i32> [[TMP24]])
 ; CHECK-MAXBW-NEXT:    [[TMP17:%.*]] = call i32 @llvm.vscale.i32()
@@ -2254,7 +2043,7 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
 ; CHECK-MAXBW-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
 ; CHECK-MAXBW-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
-; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
 ; CHECK-MAXBW:       for.exit:
 ; CHECK-MAXBW-NEXT:    [[EXT_B_LCSSA:%.*]] = phi i32 [ [[EXT_B]], [[FOR_BODY]] ], [ [[TMP21]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
@@ -2317,7 +2106,7 @@ define i64 @dotp_cost_disagreement(ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP15]] = add <vscale x 2 x i64> [[VEC_PHI]], [[TMP14]]
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP16:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP16]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP16]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
 ; CHECK-INTERLEAVE1:       middle.block:
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP17:%.*]] = call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> [[TMP15]])
 ; CHECK-INTERLEAVE1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 16, [[N_VEC]]
@@ -2339,7 +2128,7 @@ define i64 @dotp_cost_disagreement(ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVE1-NEXT:    [[MUL:%.*]] = mul nuw nsw i64 [[CONV3]], [[CONV]]
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add i64 [[SUM]], [[MUL]]
 ; CHECK-INTERLEAVE1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[I_IV_NEXT]], 16
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
 ; CHECK-INTERLEAVE1:       exit:
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP17]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVE1-NEXT:    ret i64 [[ADD_LCSSA]]
@@ -2389,7 +2178,7 @@ define i64 @dotp_cost_disagreement(ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP25]] = add <vscale x 2 x i64> [[VEC_PHI1]], [[TMP23]]
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP26:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP26]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP26]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
 ; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add <vscale x 2 x i64> [[TMP25]], [[TMP24]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP27:%.*]] = call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> [[BIN_RDX]])
@@ -2412,7 +2201,7 @@ define i64 @dotp_cost_disagreement(ptr %a, ptr %b) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[MUL:%.*]] = mul nuw nsw i64 [[CONV3]], [[CONV]]
 ; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add i64 [[SUM]], [[MUL]]
 ; CHECK-INTERLEAVED-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[I_IV_NEXT]], 16
-; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
 ; CHECK-INTERLEAVED:       exit:
 ; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP27]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVED-NEXT:    ret i64 [[ADD_LCSSA]]
@@ -2449,7 +2238,7 @@ define i64 @dotp_cost_disagreement(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[PARTIAL_REDUCE]] = call <vscale x 1 x i64> @llvm.experimental.vector.partial.reduce.add.nxv1i64.nxv8i64(<vscale x 1 x i64> [[VEC_PHI]], <vscale x 8 x i64> [[TMP14]])
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
 ; CHECK-MAXBW-NEXT:    [[TMP15:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
 ; CHECK-MAXBW-NEXT:    [[TMP16:%.*]] = call i64 @llvm.vector.reduce.add.nxv1i64(<vscale x 1 x i64> [[PARTIAL_REDUCE]])
 ; CHECK-MAXBW-NEXT:    [[CMP_N:%.*]] = icmp eq i64 16, [[N_VEC]]
@@ -2471,7 +2260,7 @@ define i64 @dotp_cost_disagreement(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[MUL:%.*]] = mul nuw nsw i64 [[CONV3]], [[CONV]]
 ; CHECK-MAXBW-NEXT:    [[ADD]] = add i64 [[SUM]], [[MUL]]
 ; CHECK-MAXBW-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[I_IV_NEXT]], 16
-; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
 ; CHECK-MAXBW:       exit:
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i64 [[ADD_LCSSA]]
@@ -2588,7 +2377,7 @@ define void @not_dotp_not_phi2(ptr %matrix, i32 %n) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP23]] = add i32 [[TMP21]], [[TMP15]]
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
 ; CHECK-INTERLEAVED-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
 ; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add i32 [[TMP23]], [[TMP22]]
 ; CHECK-INTERLEAVED-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]]
@@ -2615,7 +2404,7 @@ define void @not_dotp_not_phi2(ptr %matrix, i32 %n) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[SCEVGEP]] = getelementptr i8, ptr [[PTR]], i64 16
 ; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
 ; CHECK-INTERLEAVED-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i32 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
 ; CHECK-INTERLEAVED:       for.exit:
 ; CHECK-INTERLEAVED-NEXT:    [[ADD_1_LCSSA:%.*]] = phi i32 [ [[ADD_1]], [[FOR_BODY]] ], [ [[BIN_RDX]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVED-NEXT:    [[ADD_FLOAT:%.*]] = sitofp i32 [[ADD_1_LCSSA]] to float
@@ -2732,7 +2521,7 @@ define i64 @not_dotp_ext_outside_plan(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP5]] = add <8 x i64> [[TMP4]], [[VEC_PHI]]
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
 ; CHECK-INTERLEAVE1:       middle.block:
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vector.reduce.add.v8i64(<8 x i64> [[TMP5]])
 ; CHECK-INTERLEAVE1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
@@ -2751,7 +2540,7 @@ define i64 @not_dotp_ext_outside_plan(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add i64 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVE1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-INTERLEAVE1-NEXT:    [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
 ; CHECK-INTERLEAVE1:       exit.loopexit:
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP7]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVE1-NEXT:    br label [[EXIT]]
@@ -2792,7 +2581,7 @@ define i64 @not_dotp_ext_outside_plan(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP9]] = add <8 x i64> [[TMP7]], [[VEC_PHI1]]
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
 ; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
 ; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add <8 x i64> [[TMP9]], [[TMP8]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP11:%.*]] = call i64 @llvm.vector.reduce.add.v8i64(<8 x i64> [[BIN_RDX]])
@@ -2812,7 +2601,7 @@ define i64 @not_dotp_ext_outside_plan(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add i64 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-INTERLEAVED-NEXT:    [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
 ; CHECK-INTERLEAVED:       exit.loopexit:
 ; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP11]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVED-NEXT:    br label [[EXIT]]
@@ -2853,7 +2642,7 @@ define i64 @not_dotp_ext_outside_plan(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-MAXBW-NEXT:    [[TMP11]] = add <vscale x 4 x i64> [[TMP10]], [[VEC_PHI]]
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
 ; CHECK-MAXBW-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
 ; CHECK-MAXBW-NEXT:    [[TMP13:%.*]] = call i64 @llvm.vector.reduce.add.nxv4i64(<vscale x 4 x i64> [[TMP11]])
 ; CHECK-MAXBW-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
@@ -2872,7 +2661,7 @@ define i64 @not_dotp_ext_outside_plan(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD]] = add i64 [[MUL]], [[ACCUM]]
 ; CHECK-MAXBW-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-MAXBW-NEXT:    [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-MAXBW-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
 ; CHECK-MAXBW:       exit.loopexit:
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP13]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    br label [[EXIT]]
@@ -2933,7 +2722,7 @@ define i64 @not_dotp_ext_outside_plan2(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP5]] = add <8 x i64> [[TMP4]], [[VEC_PHI]]
 ; CHECK-INTERLEAVE1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
 ; CHECK-INTERLEAVE1:       middle.block:
 ; CHECK-INTERLEAVE1-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vector.reduce.add.v8i64(<8 x i64> [[TMP5]])
 ; CHECK-INTERLEAVE1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
@@ -2952,7 +2741,7 @@ define i64 @not_dotp_ext_outside_plan2(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD]] = add i64 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVE1-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-INTERLEAVE1-NEXT:    [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVE1-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
+; CHECK-INTERLEAVE1-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
 ; CHECK-INTERLEAVE1:       exit.loopexit:
 ; CHECK-INTERLEAVE1-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP7]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVE1-NEXT:    br label [[EXIT]]
@@ -2993,7 +2782,7 @@ define i64 @not_dotp_ext_outside_plan2(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[TMP9]] = add <8 x i64> [[TMP7]], [[VEC_PHI1]]
 ; CHECK-INTERLEAVED-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
 ; CHECK-INTERLEAVED-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP25:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
 ; CHECK-INTERLEAVED:       middle.block:
 ; CHECK-INTERLEAVED-NEXT:    [[BIN_RDX:%.*]] = add <8 x i64> [[TMP9]], [[TMP8]]
 ; CHECK-INTERLEAVED-NEXT:    [[TMP11:%.*]] = call i64 @llvm.vector.reduce.add.v8i64(<8 x i64> [[BIN_RDX]])
@@ -3013,7 +2802,7 @@ define i64 @not_dotp_ext_outside_plan2(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-INTERLEAVED-NEXT:    [[ADD]] = add i64 [[MUL]], [[ACCUM]]
 ; CHECK-INTERLEAVED-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-INTERLEAVED-NEXT:    [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-INTERLEAVED-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP26:![0-9]+]]
+; CHECK-INTERLEAVED-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
 ; CHECK-INTERLEAVED:       exit.loopexit:
 ; CHECK-INTERLEAVED-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP11]], [[MIDDLE_BLOCK]] ]
 ; CHECK-INTERLEAVED-NEXT:    br label [[EXIT]]
@@ -3054,7 +2843,7 @@ define i64 @not_dotp_ext_outside_plan2(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-MAXBW-NEXT:    [[TMP11]] = add <vscale x 4 x i64> [[TMP10]], [[VEC_PHI]]
 ; CHECK-MAXBW-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
 ; CHECK-MAXBW-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; CHECK-MAXBW-NEXT:    br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
 ; CHECK-MAXBW:       middle.block:
 ; CHECK-MAXBW-NEXT:    [[TMP13:%.*]] = call i64 @llvm.vector.reduce.add.nxv4i64(<vscale x 4 x i64> [[TMP11]])
 ; CHECK-MAXBW-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
@@ -3073,7 +2862,7 @@ define i64 @not_dotp_ext_outside_plan2(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD]] = add i64 [[MUL]], [[ACCUM]]
 ; CHECK-MAXBW-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
 ; CHECK-MAXBW-NEXT:    [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
-; CHECK-MAXBW-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
+; CHECK-MAXBW-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
 ; CHECK-MAXBW:       exit.loopexit:
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP13]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    br label [[EXIT]]
@@ -3124,19 +2913,17 @@ attributes #0 = { vscale_range(1,16) "target-features"="+sve" }
 ; CHECK-INTERLEAVE1: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVE1: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVE1: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVE1: [[LOOP12]] = distinct !{[[LOOP12]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVE1: [[LOOP13]] = distinct !{[[LOOP13]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVE1: [[LOOP14]] = distinct !{[[LOOP14]], [[META15:![0-9]+]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVE1: [[META15]] = !{!"llvm.loop.mustprogress"}
-; CHECK-INTERLEAVE1: [[LOOP16]] = distinct !{[[LOOP16]], [[META15]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVE1: [[LOOP12]] = distinct !{[[LOOP12]], [[META13:![0-9]+]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVE1: [[META13]] = !{!"llvm.loop.mustprogress"}
+; CHECK-INTERLEAVE1: [[LOOP14]] = distinct !{[[LOOP14]], [[META13]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVE1: [[LOOP15]] = distinct !{[[LOOP15]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVE1: [[LOOP16]] = distinct !{[[LOOP16]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVE1: [[LOOP17]] = distinct !{[[LOOP17]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVE1: [[LOOP18]] = distinct !{[[LOOP18]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVE1: [[LOOP19]] = distinct !{[[LOOP19]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVE1: [[LOOP20]] = distinct !{[[LOOP20]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVE1: [[LOOP21]] = distinct !{[[LOOP21]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVE1: [[LOOP22]] = distinct !{[[LOOP22]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVE1: [[LOOP23]] = distinct !{[[LOOP23]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVE1: [[LOOP24]] = distinct !{[[LOOP24]], [[META2]], [[META1]]}
 ;.
 ; CHECK-INTERLEAVED: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
 ; CHECK-INTERLEAVED: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
@@ -3150,21 +2937,19 @@ attributes #0 = { vscale_range(1,16) "target-features"="+sve" }
 ; CHECK-INTERLEAVED: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVED: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVED: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVED: [[LOOP12]] = distinct !{[[LOOP12]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVED: [[LOOP13]] = distinct !{[[LOOP13]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVED: [[LOOP14]] = distinct !{[[LOOP14]], [[META15:![0-9]+]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVED: [[META15]] = !{!"llvm.loop.mustprogress"}
-; CHECK-INTERLEAVED: [[LOOP16]] = distinct !{[[LOOP16]], [[META15]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVED: [[LOOP12]] = distinct !{[[LOOP12]], [[META13:![0-9]+]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVED: [[META13]] = !{!"llvm.loop.mustprogress"}
+; CHECK-INTERLEAVED: [[LOOP14]] = distinct !{[[LOOP14]], [[META13]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVED: [[LOOP15]] = distinct !{[[LOOP15]], [[META1]], [[META2]]}
+; CHECK-INTERLEAVED: [[LOOP16]] = distinct !{[[LOOP16]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVED: [[LOOP17]] = distinct !{[[LOOP17]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVED: [[LOOP18]] = distinct !{[[LOOP18]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVED: [[LOOP19]] = distinct !{[[LOOP19]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVED: [[LOOP20]] = distinct !{[[LOOP20]], [[META2]], [[META1]]}
+; CHECK-INTERLEAVED: [[LOOP20]] = distinct !{[[LOOP20]], [[META1]]}
 ; CHECK-INTERLEAVED: [[LOOP21]] = distinct !{[[LOOP21]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVED: [[LOOP22]] = distinct !{[[LOOP22]], [[META1]]}
+; CHECK-INTERLEAVED: [[LOOP22]] = distinct !{[[LOOP22]], [[META2]], [[META1]]}
 ; CHECK-INTERLEAVED: [[LOOP23]] = distinct !{[[LOOP23]], [[META1]], [[META2]]}
 ; CHECK-INTERLEAVED: [[LOOP24]] = distinct !{[[LOOP24]], [[META2]], [[META1]]}
-; CHECK-INTERLEAVED: [[LOOP25]] = distinct !{[[LOOP25]], [[META1]], [[META2]]}
-; CHECK-INTERLEAVED: [[LOOP26]] = distinct !{[[LOOP26]], [[META2]], [[META1]]}
 ;.
 ; CHECK-MAXBW: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
 ; CHECK-MAXBW: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
@@ -3178,17 +2963,15 @@ attributes #0 = { vscale_range(1,16) "target-features"="+sve" }
 ; CHECK-MAXBW: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
 ; CHECK-MAXBW: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
 ; CHECK-MAXBW: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
-; CHECK-MAXBW: [[LOOP12]] = distinct !{[[LOOP12]], [[META1]], [[META2]]}
-; CHECK-MAXBW: [[LOOP13]] = distinct !{[[LOOP13]], [[META2]], [[META1]]}
-; CHECK-MAXBW: [[LOOP14]] = distinct !{[[LOOP14]], [[META15:![0-9]+]], [[META1]], [[META2]]}
-; CHECK-MAXBW: [[META15]] = !{!"llvm.loop.mustprogress"}
-; CHECK-MAXBW: [[LOOP16]] = distinct !{[[LOOP16]], [[META15]], [[META2]], [[META1]]}
+; CHECK-MAXBW: [[LOOP12]] = distinct !{[[LOOP12]], [[META13:![0-9]+]], [[META1]], [[META2]]}
+; CHECK-MAXBW: [[META13]] = !{!"llvm.loop.mustprogress"}
+; CHECK-MAXBW: [[LOOP14]] = distinct !{[[LOOP14]], [[META13]], [[META2]], [[META1]]}
+; CHECK-MAXBW: [[LOOP15]] = distinct !{[[LOOP15]], [[META1]], [[META2]]}
+; CHECK-MAXBW: [[LOOP16]] = distinct !{[[LOOP16]], [[META2]], [[META1]]}
 ; CHECK-MAXBW: [[LOOP17]] = distinct !{[[LOOP17]], [[META1]], [[META2]]}
 ; CHECK-MAXBW: [[LOOP18]] = distinct !{[[LOOP18]], [[META2]], [[META1]]}
 ; CHECK-MAXBW: [[LOOP19]] = distinct !{[[LOOP19]], [[META1]], [[META2]]}
 ; CHECK-MAXBW: [[LOOP20]] = distinct !{[[LOOP20]], [[META2]], [[META1]]}
 ; CHECK-MAXBW: [[LOOP21]] = distinct !{[[LOOP21]], [[META1]], [[META2]]}
 ; CHECK-MAXBW: [[LOOP22]] = distinct !{[[LOOP22]], [[META2]], [[META1]]}
-; CHECK-MAXBW: [[LOOP23]] = distinct !{[[LOOP23]], [[META1]], [[META2]]}
-; CHECK-MAXBW: [[LOOP24]] = distinct !{[[LOOP24]], [[META2]], [[META1]]}
 ;.

>From 3fdd4ef0c5bfc33ce25b9d00121b451dd54bee83 Mon Sep 17 00:00:00 2001
From: James Chesterman <james.chesterman at arm.com>
Date: Wed, 29 Jan 2025 11:53:46 +0000
Subject: [PATCH 4/5] Address comments. Add RUN line to test files. Change a
 comment. Remove Mask as operand in Partial Reduction Recipe. Instead just
 mask the input when creating the recipe.

---
 .../Transforms/Vectorize/LoopVectorize.cpp    |   17 +-
 llvm/lib/Transforms/Vectorize/VPlan.h         |   13 +-
 .../lib/Transforms/Vectorize/VPlanRecipes.cpp |   13 +-
 .../partial-reduce-dot-product-neon.ll        |  983 ++++++++++++++
 .../AArch64/partial-reduce-dot-product.ll     | 1132 +++++++++++++++++
 5 files changed, 2135 insertions(+), 23 deletions(-)

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index dd930c3a5a3b49..333090821b915a 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -8898,8 +8898,13 @@ VPRecipeBuilder::tryToCreatePartialReduction(Instruction *Reduction,
     std::swap(BinOp, Accumulator);
 
   VPValue *Mask = getBlockInMask(Reduction->getParent());
-
-  return new VPPartialReductionRecipe(Reduction->getOpcode(), BinOp, Accumulator, Mask, Reduction);
+  if (Mask) {
+    VPValue *Zero =
+        Plan.getOrAddLiveIn(ConstantInt::get(Reduction->getType(), 0));
+    BinOp = Builder.createSelect(Mask, BinOp, Zero, Reduction->getDebugLoc());
+  }
+  return new VPPartialReductionRecipe(Reduction->getOpcode(), BinOp,
+                                      Accumulator, Reduction);
 }
 
 void LoopVectorizationPlanner::buildVPlansWithVPRecipes(ElementCount MinVF,
@@ -9711,11 +9716,9 @@ void LoopVectorizationPlanner::adjustRecipesForReductions(
     // beginning of the dedicated latch block.
     auto *OrigExitingVPV = PhiR->getBackedgeValue();
     auto *NewExitingVPV = PhiR->getBackedgeValue();
-    // Don't add selects here for partial reductions because the phi and partial
-    // reduction values have less vector elements than Cond. But, each operand
-    // in a select instruction needs to have the same number of vector elements,
-    // so the compiler would crash. Instead, a select, with the active lane
-    // mask, is applied to the inputs to the partial reduction.
+    // Don't output selects for partial reductions because they have an output
+    // with fewer lanes than the VF. So the operands of the select would have
+    // different numbers of lanes. Partial reductions mask the input instead.
     if (!PhiR->isInLoop() && CM.foldTailByMasking() &&
         !isa<VPPartialReductionRecipe>(OrigExitingVPV->getDefiningRecipe())) {
       VPValue *Cond = RecipeBuilder.getBlockInMask(OrigLoop->getHeader());
diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 4f074beff1b249..1f7100093d7015 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -2455,11 +2455,10 @@ class VPPartialReductionRecipe : public VPSingleDefRecipe {
 
 public:
   VPPartialReductionRecipe(Instruction *ReductionInst, VPValue *Op0,
-                           VPValue *Op1, VPValue *Mask = nullptr)
-      : VPPartialReductionRecipe(ReductionInst->getOpcode(), Op0, Op1, Mask,
+                           VPValue *Op1)
+      : VPPartialReductionRecipe(ReductionInst->getOpcode(), Op0, Op1,
                                  ReductionInst) {}
   VPPartialReductionRecipe(unsigned Opcode, VPValue *Op0, VPValue *Op1,
-                           VPValue *Mask = nullptr,
                            Instruction *ReductionInst = nullptr)
       : VPSingleDefRecipe(VPDef::VPPartialReductionSC,
                           ArrayRef<VPValue *>({Op0, Op1}), ReductionInst),
@@ -2469,18 +2468,12 @@ class VPPartialReductionRecipe : public VPSingleDefRecipe {
     assert((isa<VPReductionPHIRecipe>(AccumulatorRecipe) ||
             isa<VPPartialReductionRecipe>(AccumulatorRecipe)) &&
            "Unexpected operand order for partial reduction recipe");
-    if (Mask)
-      addOperand(Mask);
   }
   ~VPPartialReductionRecipe() override = default;
 
   VPPartialReductionRecipe *clone() override {
     return new VPPartialReductionRecipe(Opcode, getOperand(0), getOperand(1),
-                                        getMask(), getUnderlyingInstr());
-  }
-
-  VPValue *getMask() const {
-    return getNumOperands() == 3 ? getOperand(2) : nullptr;
+                                        getUnderlyingInstr());
   }
 
   VP_CLASSOF_IMPL(VPDef::VPPartialReductionSC)
diff --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
index 8de6dd29f5d8d0..d03fba308879e3 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -283,6 +283,13 @@ VPPartialReductionRecipe::computeCost(ElementCount VF,
                                       VPCostContext &Ctx) const {
   std::optional<unsigned> Opcode = std::nullopt;
   VPRecipeBase *BinOpR = getOperand(0)->getDefiningRecipe();
+
+  // If the partial reduction is predicated, a select will be operand 0 rather
+  // than the binary op
+  using namespace llvm::VPlanPatternMatch;
+  if (match(getOperand(0), m_Select(m_VPValue(), m_VPValue(), m_VPValue())))
+    BinOpR = BinOpR->getOperand(1)->getDefiningRecipe();
+
   if (auto *WidenR = dyn_cast<VPWidenRecipe>(BinOpR))
     Opcode = std::make_optional(WidenR->getOpcode());
 
@@ -327,12 +334,6 @@ void VPPartialReductionRecipe::execute(VPTransformState &State) {
 
   Type *RetTy = PhiVal->getType();
 
-  VPValue *Mask = getMask();
-  if (Mask) {
-    Value *MaskVal = State.get(Mask);
-    Value *Zero = ConstantInt::get(BinOpVal->getType(), 0);
-    BinOpVal = Builder.CreateSelect(MaskVal, BinOpVal, Zero);
-  }
   CallInst *V = Builder.CreateIntrinsic(
       RetTy, Intrinsic::experimental_vector_partial_reduce_add,
       {PhiVal, BinOpVal}, nullptr, "partial.reduce");
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 54dc6ce5d3a92f..8360e12b66d05b 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
@@ -2,6 +2,7 @@
 ; RUN: opt -passes=loop-vectorize -enable-epilogue-vectorization=false -mattr=+neon,+dotprod -force-vector-interleave=1 -S < %s | FileCheck %s --check-prefixes=CHECK-INTERLEAVE1
 ; RUN: opt -passes=loop-vectorize -enable-epilogue-vectorization=false -mattr=+neon,+dotprod -S < %s | FileCheck %s --check-prefixes=CHECK-INTERLEAVED
 ; RUN: opt -passes=loop-vectorize -enable-epilogue-vectorization=false -mattr=+neon,+dotprod -force-vector-interleave=1 -vectorizer-maximize-bandwidth -S < %s | FileCheck %s --check-prefixes=CHECK-MAXBW
+; RUN: opt -passes=loop-vectorize -enable-epilogue-vectorization=true -mattr=+neon,+dotprod -S < %s | FileCheck %s --check-prefixes=CHECK-EPILOGUE
 
 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
 target triple = "aarch64-none-unknown-elf"
@@ -161,6 +162,64 @@ define i32 @dotp(ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP9]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @dotp(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE5:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP1]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = getelementptr i8, ptr [[TMP1]], i32 16
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD2:%.*]] = load <16 x i8>, ptr [[TMP3]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = zext <16 x i8> [[WIDE_LOAD2]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP6]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = getelementptr i8, ptr [[TMP6]], i32 16
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD3:%.*]] = load <16 x i8>, ptr [[TMP7]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD4:%.*]] = load <16 x i8>, ptr [[TMP8]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = zext <16 x i8> [[WIDE_LOAD3]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = zext <16 x i8> [[WIDE_LOAD4]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = mul <16 x i32> [[TMP9]], [[TMP4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = mul <16 x i32> [[TMP10]], [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP11]])
+; CHECK-EPILOGUE-NEXT:    [[PARTIAL_REDUCE5]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI1]], <16 x i32> [[TMP12]])
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <4 x i32> [[PARTIAL_REDUCE5]], [[PARTIAL_REDUCE]]
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    br i1 true, label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP14]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP14]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -580,6 +639,186 @@ define i32 @not_dotp_different_types(ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP71]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @not_dotp_different_types(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP137:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP138:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = add i64 [[INDEX]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = add i64 [[INDEX]], 5
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 6
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = add i64 [[INDEX]], 7
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX]], 9
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], 10
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = add i64 [[INDEX]], 11
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = add i64 [[INDEX]], 12
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = add i64 [[INDEX]], 13
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = add i64 [[INDEX]], 14
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = add i64 [[INDEX]], 15
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = add i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = add i64 [[INDEX]], 17
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = add i64 [[INDEX]], 18
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = add i64 [[INDEX]], 19
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = add i64 [[INDEX]], 20
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = add i64 [[INDEX]], 21
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = add i64 [[INDEX]], 22
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = add i64 [[INDEX]], 23
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = add i64 [[INDEX]], 24
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = add i64 [[INDEX]], 25
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = add i64 [[INDEX]], 26
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = add i64 [[INDEX]], 27
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = add i64 [[INDEX]], 28
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = add i64 [[INDEX]], 29
+; CHECK-EPILOGUE-NEXT:    [[TMP30:%.*]] = add i64 [[INDEX]], 30
+; CHECK-EPILOGUE-NEXT:    [[TMP31:%.*]] = add i64 [[INDEX]], 31
+; CHECK-EPILOGUE-NEXT:    [[TMP32:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP33:%.*]] = getelementptr i8, ptr [[TMP32]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP34:%.*]] = getelementptr i8, ptr [[TMP32]], i32 16
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP33]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD2:%.*]] = load <16 x i8>, ptr [[TMP34]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP35:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP36:%.*]] = zext <16 x i8> [[WIDE_LOAD2]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP37:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP38:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    [[TMP39:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
+; CHECK-EPILOGUE-NEXT:    [[TMP40:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP41:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP42:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP43:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP44:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP7]]
+; CHECK-EPILOGUE-NEXT:    [[TMP45:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP8]]
+; CHECK-EPILOGUE-NEXT:    [[TMP46:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP47:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP48:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP11]]
+; CHECK-EPILOGUE-NEXT:    [[TMP49:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP50:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP51:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP14]]
+; CHECK-EPILOGUE-NEXT:    [[TMP52:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    [[TMP53:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP16]]
+; CHECK-EPILOGUE-NEXT:    [[TMP54:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP17]]
+; CHECK-EPILOGUE-NEXT:    [[TMP55:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP18]]
+; CHECK-EPILOGUE-NEXT:    [[TMP56:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP19]]
+; CHECK-EPILOGUE-NEXT:    [[TMP57:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP20]]
+; CHECK-EPILOGUE-NEXT:    [[TMP58:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP21]]
+; CHECK-EPILOGUE-NEXT:    [[TMP59:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP22]]
+; CHECK-EPILOGUE-NEXT:    [[TMP60:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP23]]
+; CHECK-EPILOGUE-NEXT:    [[TMP61:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP24]]
+; CHECK-EPILOGUE-NEXT:    [[TMP62:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP25]]
+; CHECK-EPILOGUE-NEXT:    [[TMP63:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP26]]
+; CHECK-EPILOGUE-NEXT:    [[TMP64:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP27]]
+; CHECK-EPILOGUE-NEXT:    [[TMP65:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP28]]
+; CHECK-EPILOGUE-NEXT:    [[TMP66:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP29]]
+; CHECK-EPILOGUE-NEXT:    [[TMP67:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP30]]
+; CHECK-EPILOGUE-NEXT:    [[TMP68:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP31]]
+; CHECK-EPILOGUE-NEXT:    [[TMP69:%.*]] = load i16, ptr [[TMP37]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP70:%.*]] = load i16, ptr [[TMP38]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP71:%.*]] = load i16, ptr [[TMP39]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP72:%.*]] = load i16, ptr [[TMP40]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP73:%.*]] = load i16, ptr [[TMP41]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP74:%.*]] = load i16, ptr [[TMP42]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP75:%.*]] = load i16, ptr [[TMP43]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP76:%.*]] = load i16, ptr [[TMP44]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP77:%.*]] = load i16, ptr [[TMP45]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP78:%.*]] = load i16, ptr [[TMP46]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP79:%.*]] = load i16, ptr [[TMP47]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP80:%.*]] = load i16, ptr [[TMP48]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP81:%.*]] = load i16, ptr [[TMP49]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP82:%.*]] = load i16, ptr [[TMP50]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP83:%.*]] = load i16, ptr [[TMP51]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP84:%.*]] = load i16, ptr [[TMP52]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP85:%.*]] = insertelement <16 x i16> poison, i16 [[TMP69]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP86:%.*]] = insertelement <16 x i16> [[TMP85]], i16 [[TMP70]], i32 1
+; CHECK-EPILOGUE-NEXT:    [[TMP87:%.*]] = insertelement <16 x i16> [[TMP86]], i16 [[TMP71]], i32 2
+; CHECK-EPILOGUE-NEXT:    [[TMP88:%.*]] = insertelement <16 x i16> [[TMP87]], i16 [[TMP72]], i32 3
+; CHECK-EPILOGUE-NEXT:    [[TMP89:%.*]] = insertelement <16 x i16> [[TMP88]], i16 [[TMP73]], i32 4
+; CHECK-EPILOGUE-NEXT:    [[TMP90:%.*]] = insertelement <16 x i16> [[TMP89]], i16 [[TMP74]], i32 5
+; CHECK-EPILOGUE-NEXT:    [[TMP91:%.*]] = insertelement <16 x i16> [[TMP90]], i16 [[TMP75]], i32 6
+; CHECK-EPILOGUE-NEXT:    [[TMP92:%.*]] = insertelement <16 x i16> [[TMP91]], i16 [[TMP76]], i32 7
+; CHECK-EPILOGUE-NEXT:    [[TMP93:%.*]] = insertelement <16 x i16> [[TMP92]], i16 [[TMP77]], i32 8
+; CHECK-EPILOGUE-NEXT:    [[TMP94:%.*]] = insertelement <16 x i16> [[TMP93]], i16 [[TMP78]], i32 9
+; CHECK-EPILOGUE-NEXT:    [[TMP95:%.*]] = insertelement <16 x i16> [[TMP94]], i16 [[TMP79]], i32 10
+; CHECK-EPILOGUE-NEXT:    [[TMP96:%.*]] = insertelement <16 x i16> [[TMP95]], i16 [[TMP80]], i32 11
+; CHECK-EPILOGUE-NEXT:    [[TMP97:%.*]] = insertelement <16 x i16> [[TMP96]], i16 [[TMP81]], i32 12
+; CHECK-EPILOGUE-NEXT:    [[TMP98:%.*]] = insertelement <16 x i16> [[TMP97]], i16 [[TMP82]], i32 13
+; CHECK-EPILOGUE-NEXT:    [[TMP99:%.*]] = insertelement <16 x i16> [[TMP98]], i16 [[TMP83]], i32 14
+; CHECK-EPILOGUE-NEXT:    [[TMP100:%.*]] = insertelement <16 x i16> [[TMP99]], i16 [[TMP84]], i32 15
+; CHECK-EPILOGUE-NEXT:    [[TMP101:%.*]] = load i16, ptr [[TMP53]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP102:%.*]] = load i16, ptr [[TMP54]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP103:%.*]] = load i16, ptr [[TMP55]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP104:%.*]] = load i16, ptr [[TMP56]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP105:%.*]] = load i16, ptr [[TMP57]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP106:%.*]] = load i16, ptr [[TMP58]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP107:%.*]] = load i16, ptr [[TMP59]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP108:%.*]] = load i16, ptr [[TMP60]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP109:%.*]] = load i16, ptr [[TMP61]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP110:%.*]] = load i16, ptr [[TMP62]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP111:%.*]] = load i16, ptr [[TMP63]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP112:%.*]] = load i16, ptr [[TMP64]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP113:%.*]] = load i16, ptr [[TMP65]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP114:%.*]] = load i16, ptr [[TMP66]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP115:%.*]] = load i16, ptr [[TMP67]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP116:%.*]] = load i16, ptr [[TMP68]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP117:%.*]] = insertelement <16 x i16> poison, i16 [[TMP101]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP118:%.*]] = insertelement <16 x i16> [[TMP117]], i16 [[TMP102]], i32 1
+; CHECK-EPILOGUE-NEXT:    [[TMP119:%.*]] = insertelement <16 x i16> [[TMP118]], i16 [[TMP103]], i32 2
+; CHECK-EPILOGUE-NEXT:    [[TMP120:%.*]] = insertelement <16 x i16> [[TMP119]], i16 [[TMP104]], i32 3
+; CHECK-EPILOGUE-NEXT:    [[TMP121:%.*]] = insertelement <16 x i16> [[TMP120]], i16 [[TMP105]], i32 4
+; CHECK-EPILOGUE-NEXT:    [[TMP122:%.*]] = insertelement <16 x i16> [[TMP121]], i16 [[TMP106]], i32 5
+; CHECK-EPILOGUE-NEXT:    [[TMP123:%.*]] = insertelement <16 x i16> [[TMP122]], i16 [[TMP107]], i32 6
+; CHECK-EPILOGUE-NEXT:    [[TMP124:%.*]] = insertelement <16 x i16> [[TMP123]], i16 [[TMP108]], i32 7
+; CHECK-EPILOGUE-NEXT:    [[TMP125:%.*]] = insertelement <16 x i16> [[TMP124]], i16 [[TMP109]], i32 8
+; CHECK-EPILOGUE-NEXT:    [[TMP126:%.*]] = insertelement <16 x i16> [[TMP125]], i16 [[TMP110]], i32 9
+; CHECK-EPILOGUE-NEXT:    [[TMP127:%.*]] = insertelement <16 x i16> [[TMP126]], i16 [[TMP111]], i32 10
+; CHECK-EPILOGUE-NEXT:    [[TMP128:%.*]] = insertelement <16 x i16> [[TMP127]], i16 [[TMP112]], i32 11
+; CHECK-EPILOGUE-NEXT:    [[TMP129:%.*]] = insertelement <16 x i16> [[TMP128]], i16 [[TMP113]], i32 12
+; CHECK-EPILOGUE-NEXT:    [[TMP130:%.*]] = insertelement <16 x i16> [[TMP129]], i16 [[TMP114]], i32 13
+; CHECK-EPILOGUE-NEXT:    [[TMP131:%.*]] = insertelement <16 x i16> [[TMP130]], i16 [[TMP115]], i32 14
+; CHECK-EPILOGUE-NEXT:    [[TMP132:%.*]] = insertelement <16 x i16> [[TMP131]], i16 [[TMP116]], i32 15
+; CHECK-EPILOGUE-NEXT:    [[TMP133:%.*]] = zext <16 x i16> [[TMP100]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP134:%.*]] = zext <16 x i16> [[TMP132]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP135:%.*]] = mul <16 x i32> [[TMP133]], [[TMP35]]
+; CHECK-EPILOGUE-NEXT:    [[TMP136:%.*]] = mul <16 x i32> [[TMP134]], [[TMP36]]
+; CHECK-EPILOGUE-NEXT:    [[TMP137]] = add <16 x i32> [[TMP135]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP138]] = add <16 x i32> [[TMP136]], [[VEC_PHI1]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
+; CHECK-EPILOGUE-NEXT:    [[TMP139:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP139]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <16 x i32> [[TMP138]], [[TMP137]]
+; CHECK-EPILOGUE-NEXT:    [[TMP140:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    br i1 true, label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP140]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i16, ptr [[GEP_B]], align 2
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i16 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP140]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -753,6 +992,56 @@ define i32 @not_dotp_not_loop_carried(ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP11]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @not_dotp_not_loop_carried(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR:%.*]] = phi <16 x i32> [ <i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 0>, [[VECTOR_PH]] ], [ [[TMP7:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP1]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[TMP4]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD1:%.*]] = load <16 x i8>, ptr [[TMP5]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = zext <16 x i8> [[WIDE_LOAD1]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP7]] = mul <16 x i32> [[TMP6]], [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = shufflevector <16 x i32> [[VECTOR_RECUR]], <16 x i32> [[TMP7]], <16 x i32> <i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30>
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = add <16 x i32> [[TMP7]], [[TMP8]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = extractelement <16 x i32> [[TMP9]], i32 15
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <16 x i32> [[TMP7]], i32 15
+; CHECK-EPILOGUE-NEXT:    br i1 true, label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[MUL:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD:%.*]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP11]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -923,6 +1212,55 @@ define i32 @not_dotp_not_phi(ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP10]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @not_dotp_not_phi(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR:%.*]] = phi <16 x i32> [ <i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 0>, [[VECTOR_PH]] ], [ [[TMP8:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP1]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[TMP4]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD1:%.*]] = load <16 x i8>, ptr [[TMP5]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = zext <16 x i8> [[WIDE_LOAD1]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = mul <16 x i32> [[TMP6]], [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP8]] = add <16 x i32> [[TMP7]], [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = extractelement <16 x i32> [[TMP8]], i32 15
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <16 x i32> [[TMP8]], i32 15
+; CHECK-EPILOGUE-NEXT:    br i1 true, label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i32 [[MUL]], [[EXT_B]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP10]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -1336,6 +1674,216 @@ define i32 @dotp_unrolled(i32 %num_out, i64 %num_in, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[RESULT:%.*]] = add nsw i32 [[RESULT0]], [[RESULT1]]
 ; CHECK-MAXBW-NEXT:    ret i32 [[RESULT]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @dotp_unrolled(
+; CHECK-EPILOGUE-SAME: i32 [[NUM_OUT:%.*]], i64 [[NUM_IN:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  iter.check:
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[NUM_IN]], 4
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]]
+; CHECK-EPILOGUE:       vector.main.loop.iter.check:
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[NUM_IN]], 16
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[NUM_IN]], 16
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 [[NUM_IN]], [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE14:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE11:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE8:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI4:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = or disjoint i64 [[TMP0]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = or disjoint i64 [[TMP0]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = or disjoint i64 [[TMP0]], 3
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP12]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD5:%.*]] = load <16 x i8>, ptr [[TMP14]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = sext <16 x i8> [[WIDE_LOAD5]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = mul nsw <16 x i32> [[TMP15]], [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI4]], <16 x i32> [[TMP16]])
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD6:%.*]] = load <16 x i8>, ptr [[TMP17]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = sext <16 x i8> [[WIDE_LOAD6]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD7:%.*]] = load <16 x i8>, ptr [[TMP19]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = sext <16 x i8> [[WIDE_LOAD7]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = mul nsw <16 x i32> [[TMP18]], [[TMP20]]
+; CHECK-EPILOGUE-NEXT:    [[PARTIAL_REDUCE8]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI3]], <16 x i32> [[TMP21]])
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD9:%.*]] = load <16 x i8>, ptr [[TMP22]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = sext <16 x i8> [[WIDE_LOAD9]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD10:%.*]] = load <16 x i8>, ptr [[TMP24]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = sext <16 x i8> [[WIDE_LOAD10]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = mul nsw <16 x i32> [[TMP23]], [[TMP25]]
+; CHECK-EPILOGUE-NEXT:    [[PARTIAL_REDUCE11]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI2]], <16 x i32> [[TMP26]])
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = getelementptr inbounds i8, ptr [[TMP10]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD12:%.*]] = load <16 x i8>, ptr [[TMP27]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = sext <16 x i8> [[WIDE_LOAD12]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD13:%.*]] = load <16 x i8>, ptr [[TMP29]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP30:%.*]] = sext <16 x i8> [[WIDE_LOAD13]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP31:%.*]] = mul nsw <16 x i32> [[TMP28]], [[TMP30]]
+; CHECK-EPILOGUE-NEXT:    [[PARTIAL_REDUCE14]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP31]])
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP32:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP32]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP33:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE14]])
+; CHECK-EPILOGUE-NEXT:    [[TMP34:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE11]])
+; CHECK-EPILOGUE-NEXT:    [[TMP35:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE8]])
+; CHECK-EPILOGUE-NEXT:    [[TMP36:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[NUM_IN]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]]
+; CHECK-EPILOGUE:       vec.epilog.iter.check:
+; CHECK-EPILOGUE-NEXT:    [[N_VEC_REMAINING:%.*]] = sub i64 [[NUM_IN]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 4
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]]
+; CHECK-EPILOGUE:       vec.epilog.ph:
+; CHECK-EPILOGUE-NEXT:    [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP33]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX15:%.*]] = phi i32 [ [[TMP34]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX16:%.*]] = phi i32 [ [[TMP35]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX17:%.*]] = phi i32 [ [[TMP36]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF18:%.*]] = urem i64 [[NUM_IN]], 4
+; CHECK-EPILOGUE-NEXT:    [[N_VEC19:%.*]] = sub i64 [[NUM_IN]], [[N_MOD_VF18]]
+; CHECK-EPILOGUE-NEXT:    [[TMP37:%.*]] = insertelement <4 x i32> zeroinitializer, i32 [[BC_MERGE_RDX]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP38:%.*]] = insertelement <4 x i32> zeroinitializer, i32 [[BC_MERGE_RDX15]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP39:%.*]] = insertelement <4 x i32> zeroinitializer, i32 [[BC_MERGE_RDX16]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP40:%.*]] = insertelement <4 x i32> zeroinitializer, i32 [[BC_MERGE_RDX17]], i32 0
+; CHECK-EPILOGUE-NEXT:    br label [[VEC_EPILOG_VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vec.epilog.vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX20:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT33:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI21:%.*]] = phi <4 x i32> [ [[TMP37]], [[VEC_EPILOG_PH]] ], [ [[TMP76:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI22:%.*]] = phi <4 x i32> [ [[TMP38]], [[VEC_EPILOG_PH]] ], [ [[TMP70:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI23:%.*]] = phi <4 x i32> [ [[TMP39]], [[VEC_EPILOG_PH]] ], [ [[TMP64:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI24:%.*]] = phi <4 x i32> [ [[TMP40]], [[VEC_EPILOG_PH]] ], [ [[TMP58:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP41:%.*]] = add i64 [[INDEX20]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP42:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP41]]
+; CHECK-EPILOGUE-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP41]]
+; CHECK-EPILOGUE-NEXT:    [[TMP44:%.*]] = or disjoint i64 [[TMP41]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP45:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP44]]
+; CHECK-EPILOGUE-NEXT:    [[TMP46:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP44]]
+; CHECK-EPILOGUE-NEXT:    [[TMP47:%.*]] = or disjoint i64 [[TMP41]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP48:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP47]]
+; CHECK-EPILOGUE-NEXT:    [[TMP49:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP47]]
+; CHECK-EPILOGUE-NEXT:    [[TMP50:%.*]] = or disjoint i64 [[TMP41]], 3
+; CHECK-EPILOGUE-NEXT:    [[TMP51:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP50]]
+; CHECK-EPILOGUE-NEXT:    [[TMP52:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP50]]
+; CHECK-EPILOGUE-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[TMP42]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD25:%.*]] = load <4 x i8>, ptr [[TMP53]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP54:%.*]] = sext <4 x i8> [[WIDE_LOAD25]] to <4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP55:%.*]] = getelementptr inbounds i8, ptr [[TMP43]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD26:%.*]] = load <4 x i8>, ptr [[TMP55]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP56:%.*]] = sext <4 x i8> [[WIDE_LOAD26]] to <4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP57:%.*]] = mul nsw <4 x i32> [[TMP56]], [[TMP54]]
+; CHECK-EPILOGUE-NEXT:    [[TMP58]] = add <4 x i32> [[TMP57]], [[VEC_PHI24]]
+; CHECK-EPILOGUE-NEXT:    [[TMP59:%.*]] = getelementptr inbounds i8, ptr [[TMP45]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD27:%.*]] = load <4 x i8>, ptr [[TMP59]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP60:%.*]] = sext <4 x i8> [[WIDE_LOAD27]] to <4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP61:%.*]] = getelementptr inbounds i8, ptr [[TMP46]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD28:%.*]] = load <4 x i8>, ptr [[TMP61]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP62:%.*]] = sext <4 x i8> [[WIDE_LOAD28]] to <4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP63:%.*]] = mul nsw <4 x i32> [[TMP60]], [[TMP62]]
+; CHECK-EPILOGUE-NEXT:    [[TMP64]] = add <4 x i32> [[TMP63]], [[VEC_PHI23]]
+; CHECK-EPILOGUE-NEXT:    [[TMP65:%.*]] = getelementptr inbounds i8, ptr [[TMP48]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD29:%.*]] = load <4 x i8>, ptr [[TMP65]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP66:%.*]] = sext <4 x i8> [[WIDE_LOAD29]] to <4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP67:%.*]] = getelementptr inbounds i8, ptr [[TMP49]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD30:%.*]] = load <4 x i8>, ptr [[TMP67]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP68:%.*]] = sext <4 x i8> [[WIDE_LOAD30]] to <4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP69:%.*]] = mul nsw <4 x i32> [[TMP66]], [[TMP68]]
+; CHECK-EPILOGUE-NEXT:    [[TMP70]] = add <4 x i32> [[TMP69]], [[VEC_PHI22]]
+; CHECK-EPILOGUE-NEXT:    [[TMP71:%.*]] = getelementptr inbounds i8, ptr [[TMP51]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD31:%.*]] = load <4 x i8>, ptr [[TMP71]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP72:%.*]] = sext <4 x i8> [[WIDE_LOAD31]] to <4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP73:%.*]] = getelementptr inbounds i8, ptr [[TMP52]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD32:%.*]] = load <4 x i8>, ptr [[TMP73]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP74:%.*]] = sext <4 x i8> [[WIDE_LOAD32]] to <4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP75:%.*]] = mul nsw <4 x i32> [[TMP72]], [[TMP74]]
+; CHECK-EPILOGUE-NEXT:    [[TMP76]] = add <4 x i32> [[TMP75]], [[VEC_PHI21]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT33]] = add nuw i64 [[INDEX20]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP77:%.*]] = icmp eq i64 [[INDEX_NEXT33]], [[N_VEC19]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP77]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
+; CHECK-EPILOGUE:       vec.epilog.middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP78:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP76]])
+; CHECK-EPILOGUE-NEXT:    [[TMP79:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP70]])
+; CHECK-EPILOGUE-NEXT:    [[TMP80:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP64]])
+; CHECK-EPILOGUE-NEXT:    [[TMP81:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP58]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N34:%.*]] = icmp eq i64 [[NUM_IN]], [[N_VEC19]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N34]], label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]]
+; CHECK-EPILOGUE:       vec.epilog.scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC19]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK:%.*]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX35:%.*]] = phi i32 [ [[TMP78]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[TMP33]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX36:%.*]] = phi i32 [ [[TMP79]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[TMP34]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX37:%.*]] = phi i32 [ [[TMP80]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[TMP35]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX38:%.*]] = phi i32 [ [[TMP81]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[TMP36]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM3:%.*]] = phi i32 [ [[BC_MERGE_RDX35]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[ADD_A3:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM2:%.*]] = phi i32 [ [[BC_MERGE_RDX36]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[ADD_A2:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM1:%.*]] = phi i32 [ [[BC_MERGE_RDX37]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[ADD_A1:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM0:%.*]] = phi i32 [ [[BC_MERGE_RDX38]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[ADD_A0:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A0:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B0:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[OFFSET_1:%.*]] = or disjoint i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[GEP_A1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[OFFSET_1]]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B1:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[OFFSET_1]]
+; CHECK-EPILOGUE-NEXT:    [[OFFSET_2:%.*]] = or disjoint i64 [[IV]], 2
+; CHECK-EPILOGUE-NEXT:    [[GEP_A2:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[OFFSET_2]]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[OFFSET_2]]
+; CHECK-EPILOGUE-NEXT:    [[OFFSET_3:%.*]] = or disjoint i64 [[IV]], 3
+; CHECK-EPILOGUE-NEXT:    [[GEP_A3:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[OFFSET_3]]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B3:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[OFFSET_3]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A0:%.*]] = load i8, ptr [[GEP_A0]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A0:%.*]] = sext i8 [[LOAD_A0]] to i32
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B0:%.*]] = load i8, ptr [[GEP_B0]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B0:%.*]] = sext i8 [[LOAD_B0]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_A0:%.*]] = mul nsw i32 [[EXT_B0]], [[EXT_A0]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A0]] = add nsw i32 [[MUL_A0]], [[ACCUM0]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A1:%.*]] = load i8, ptr [[GEP_A1]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A1:%.*]] = sext i8 [[LOAD_A1]] to i32
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B1:%.*]] = load i8, ptr [[GEP_B1]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B1:%.*]] = sext i8 [[LOAD_B1]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_A1:%.*]] = mul nsw i32 [[EXT_A1]], [[EXT_B1]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A1]] = add nsw i32 [[MUL_A1]], [[ACCUM1]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A2:%.*]] = load i8, ptr [[GEP_A2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A2:%.*]] = sext i8 [[LOAD_A2]] to i32
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B2:%.*]] = load i8, ptr [[GEP_B2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B2:%.*]] = sext i8 [[LOAD_B2]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_A2:%.*]] = mul nsw i32 [[EXT_A2]], [[EXT_B2]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A2]] = add nsw i32 [[MUL_A2]], [[ACCUM2]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A3:%.*]] = load i8, ptr [[GEP_A3]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A3:%.*]] = sext i8 [[LOAD_A3]] to i32
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B3:%.*]] = load i8, ptr [[GEP_B3]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B3:%.*]] = sext i8 [[LOAD_B3]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_A3:%.*]] = mul nsw i32 [[EXT_A3]], [[EXT_B3]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A3]] = add nsw i32 [[MUL_A3]], [[ACCUM3]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[NUM_IN]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
+; CHECK-EPILOGUE:       exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_A0_LCSSA:%.*]] = phi i32 [ [[ADD_A0]], [[FOR_BODY]] ], [ [[TMP36]], [[MIDDLE_BLOCK]] ], [ [[TMP81]], [[VEC_EPILOG_MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A1_LCSSA:%.*]] = phi i32 [ [[ADD_A1]], [[FOR_BODY]] ], [ [[TMP35]], [[MIDDLE_BLOCK]] ], [ [[TMP80]], [[VEC_EPILOG_MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A2_LCSSA:%.*]] = phi i32 [ [[ADD_A2]], [[FOR_BODY]] ], [ [[TMP34]], [[MIDDLE_BLOCK]] ], [ [[TMP79]], [[VEC_EPILOG_MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A3_LCSSA:%.*]] = phi i32 [ [[ADD_A3]], [[FOR_BODY]] ], [ [[TMP33]], [[MIDDLE_BLOCK]] ], [ [[TMP78]], [[VEC_EPILOG_MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[RESULT0:%.*]] = add nsw i32 [[ADD_A0_LCSSA]], [[ADD_A1_LCSSA]]
+; CHECK-EPILOGUE-NEXT:    [[RESULT1:%.*]] = add nsw i32 [[ADD_A2_LCSSA]], [[ADD_A3_LCSSA]]
+; CHECK-EPILOGUE-NEXT:    [[RESULT:%.*]] = add nsw i32 [[RESULT0]], [[RESULT1]]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[RESULT]]
+;
 entry:
   br label %for.body
 
@@ -2457,6 +3005,361 @@ define i32 @dotp_predicated(i64 %N, ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP182]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @dotp_predicated(
+; CHECK-EPILOGUE-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 15
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 16
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <16 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <16 x i64> [[BROADCAST_SPLATINSERT]], <16 x i64> poison, <16 x i32> zeroinitializer
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_LOAD_CONTINUE62:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_IND:%.*]] = phi <16 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_LOAD_CONTINUE62]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], [[PRED_LOAD_CONTINUE62]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = add i64 [[INDEX]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = add i64 [[INDEX]], 5
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 6
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = add i64 [[INDEX]], 7
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX]], 9
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], 10
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = add i64 [[INDEX]], 11
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = add i64 [[INDEX]], 12
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = add i64 [[INDEX]], 13
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = add i64 [[INDEX]], 14
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = add i64 [[INDEX]], 15
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = icmp ule <16 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = extractelement <16 x i1> [[TMP16]], i32 0
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP17]], label [[PRED_LOAD_IF:%.*]], label [[PRED_LOAD_CONTINUE:%.*]]
+; CHECK-EPILOGUE:       pred.load.if:
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = load i8, ptr [[TMP18]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = insertelement <16 x i8> poison, i8 [[TMP19]], i32 0
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE]]
+; CHECK-EPILOGUE:       pred.load.continue:
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = phi <16 x i8> [ poison, [[VECTOR_BODY]] ], [ [[TMP20]], [[PRED_LOAD_IF]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = extractelement <16 x i1> [[TMP16]], i32 1
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP22]], label [[PRED_LOAD_IF1:%.*]], label [[PRED_LOAD_CONTINUE2:%.*]]
+; CHECK-EPILOGUE:       pred.load.if1:
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = load i8, ptr [[TMP23]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = insertelement <16 x i8> [[TMP21]], i8 [[TMP24]], i32 1
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE2]]
+; CHECK-EPILOGUE:       pred.load.continue2:
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = phi <16 x i8> [ [[TMP21]], [[PRED_LOAD_CONTINUE]] ], [ [[TMP25]], [[PRED_LOAD_IF1]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = extractelement <16 x i1> [[TMP16]], i32 2
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP27]], label [[PRED_LOAD_IF3:%.*]], label [[PRED_LOAD_CONTINUE4:%.*]]
+; CHECK-EPILOGUE:       pred.load.if3:
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP2]]
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = load i8, ptr [[TMP28]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP30:%.*]] = insertelement <16 x i8> [[TMP26]], i8 [[TMP29]], i32 2
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE4]]
+; CHECK-EPILOGUE:       pred.load.continue4:
+; CHECK-EPILOGUE-NEXT:    [[TMP31:%.*]] = phi <16 x i8> [ [[TMP26]], [[PRED_LOAD_CONTINUE2]] ], [ [[TMP30]], [[PRED_LOAD_IF3]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP32:%.*]] = extractelement <16 x i1> [[TMP16]], i32 3
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP32]], label [[PRED_LOAD_IF5:%.*]], label [[PRED_LOAD_CONTINUE6:%.*]]
+; CHECK-EPILOGUE:       pred.load.if5:
+; CHECK-EPILOGUE-NEXT:    [[TMP33:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP34:%.*]] = load i8, ptr [[TMP33]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP35:%.*]] = insertelement <16 x i8> [[TMP31]], i8 [[TMP34]], i32 3
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE6]]
+; CHECK-EPILOGUE:       pred.load.continue6:
+; CHECK-EPILOGUE-NEXT:    [[TMP36:%.*]] = phi <16 x i8> [ [[TMP31]], [[PRED_LOAD_CONTINUE4]] ], [ [[TMP35]], [[PRED_LOAD_IF5]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP37:%.*]] = extractelement <16 x i1> [[TMP16]], i32 4
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP37]], label [[PRED_LOAD_IF7:%.*]], label [[PRED_LOAD_CONTINUE8:%.*]]
+; CHECK-EPILOGUE:       pred.load.if7:
+; CHECK-EPILOGUE-NEXT:    [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP40:%.*]] = insertelement <16 x i8> [[TMP36]], i8 [[TMP39]], i32 4
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE8]]
+; CHECK-EPILOGUE:       pred.load.continue8:
+; CHECK-EPILOGUE-NEXT:    [[TMP41:%.*]] = phi <16 x i8> [ [[TMP36]], [[PRED_LOAD_CONTINUE6]] ], [ [[TMP40]], [[PRED_LOAD_IF7]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP42:%.*]] = extractelement <16 x i1> [[TMP16]], i32 5
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP42]], label [[PRED_LOAD_IF9:%.*]], label [[PRED_LOAD_CONTINUE10:%.*]]
+; CHECK-EPILOGUE:       pred.load.if9:
+; CHECK-EPILOGUE-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP44:%.*]] = load i8, ptr [[TMP43]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP45:%.*]] = insertelement <16 x i8> [[TMP41]], i8 [[TMP44]], i32 5
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE10]]
+; CHECK-EPILOGUE:       pred.load.continue10:
+; CHECK-EPILOGUE-NEXT:    [[TMP46:%.*]] = phi <16 x i8> [ [[TMP41]], [[PRED_LOAD_CONTINUE8]] ], [ [[TMP45]], [[PRED_LOAD_IF9]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP47:%.*]] = extractelement <16 x i1> [[TMP16]], i32 6
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP47]], label [[PRED_LOAD_IF11:%.*]], label [[PRED_LOAD_CONTINUE12:%.*]]
+; CHECK-EPILOGUE:       pred.load.if11:
+; CHECK-EPILOGUE-NEXT:    [[TMP48:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP49:%.*]] = load i8, ptr [[TMP48]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP50:%.*]] = insertelement <16 x i8> [[TMP46]], i8 [[TMP49]], i32 6
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE12]]
+; CHECK-EPILOGUE:       pred.load.continue12:
+; CHECK-EPILOGUE-NEXT:    [[TMP51:%.*]] = phi <16 x i8> [ [[TMP46]], [[PRED_LOAD_CONTINUE10]] ], [ [[TMP50]], [[PRED_LOAD_IF11]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP52:%.*]] = extractelement <16 x i1> [[TMP16]], i32 7
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP52]], label [[PRED_LOAD_IF13:%.*]], label [[PRED_LOAD_CONTINUE14:%.*]]
+; CHECK-EPILOGUE:       pred.load.if13:
+; CHECK-EPILOGUE-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP7]]
+; CHECK-EPILOGUE-NEXT:    [[TMP54:%.*]] = load i8, ptr [[TMP53]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP55:%.*]] = insertelement <16 x i8> [[TMP51]], i8 [[TMP54]], i32 7
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE14]]
+; CHECK-EPILOGUE:       pred.load.continue14:
+; CHECK-EPILOGUE-NEXT:    [[TMP56:%.*]] = phi <16 x i8> [ [[TMP51]], [[PRED_LOAD_CONTINUE12]] ], [ [[TMP55]], [[PRED_LOAD_IF13]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP57:%.*]] = extractelement <16 x i1> [[TMP16]], i32 8
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP57]], label [[PRED_LOAD_IF15:%.*]], label [[PRED_LOAD_CONTINUE16:%.*]]
+; CHECK-EPILOGUE:       pred.load.if15:
+; CHECK-EPILOGUE-NEXT:    [[TMP58:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP8]]
+; CHECK-EPILOGUE-NEXT:    [[TMP59:%.*]] = load i8, ptr [[TMP58]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP60:%.*]] = insertelement <16 x i8> [[TMP56]], i8 [[TMP59]], i32 8
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE16]]
+; CHECK-EPILOGUE:       pred.load.continue16:
+; CHECK-EPILOGUE-NEXT:    [[TMP61:%.*]] = phi <16 x i8> [ [[TMP56]], [[PRED_LOAD_CONTINUE14]] ], [ [[TMP60]], [[PRED_LOAD_IF15]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP62:%.*]] = extractelement <16 x i1> [[TMP16]], i32 9
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP62]], label [[PRED_LOAD_IF17:%.*]], label [[PRED_LOAD_CONTINUE18:%.*]]
+; CHECK-EPILOGUE:       pred.load.if17:
+; CHECK-EPILOGUE-NEXT:    [[TMP63:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP64:%.*]] = load i8, ptr [[TMP63]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP65:%.*]] = insertelement <16 x i8> [[TMP61]], i8 [[TMP64]], i32 9
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE18]]
+; CHECK-EPILOGUE:       pred.load.continue18:
+; CHECK-EPILOGUE-NEXT:    [[TMP66:%.*]] = phi <16 x i8> [ [[TMP61]], [[PRED_LOAD_CONTINUE16]] ], [ [[TMP65]], [[PRED_LOAD_IF17]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP67:%.*]] = extractelement <16 x i1> [[TMP16]], i32 10
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP67]], label [[PRED_LOAD_IF19:%.*]], label [[PRED_LOAD_CONTINUE20:%.*]]
+; CHECK-EPILOGUE:       pred.load.if19:
+; CHECK-EPILOGUE-NEXT:    [[TMP68:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP69:%.*]] = load i8, ptr [[TMP68]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP70:%.*]] = insertelement <16 x i8> [[TMP66]], i8 [[TMP69]], i32 10
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE20]]
+; CHECK-EPILOGUE:       pred.load.continue20:
+; CHECK-EPILOGUE-NEXT:    [[TMP71:%.*]] = phi <16 x i8> [ [[TMP66]], [[PRED_LOAD_CONTINUE18]] ], [ [[TMP70]], [[PRED_LOAD_IF19]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP72:%.*]] = extractelement <16 x i1> [[TMP16]], i32 11
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP72]], label [[PRED_LOAD_IF21:%.*]], label [[PRED_LOAD_CONTINUE22:%.*]]
+; CHECK-EPILOGUE:       pred.load.if21:
+; CHECK-EPILOGUE-NEXT:    [[TMP73:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP11]]
+; CHECK-EPILOGUE-NEXT:    [[TMP74:%.*]] = load i8, ptr [[TMP73]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP75:%.*]] = insertelement <16 x i8> [[TMP71]], i8 [[TMP74]], i32 11
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE22]]
+; CHECK-EPILOGUE:       pred.load.continue22:
+; CHECK-EPILOGUE-NEXT:    [[TMP76:%.*]] = phi <16 x i8> [ [[TMP71]], [[PRED_LOAD_CONTINUE20]] ], [ [[TMP75]], [[PRED_LOAD_IF21]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP77:%.*]] = extractelement <16 x i1> [[TMP16]], i32 12
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP77]], label [[PRED_LOAD_IF23:%.*]], label [[PRED_LOAD_CONTINUE24:%.*]]
+; CHECK-EPILOGUE:       pred.load.if23:
+; CHECK-EPILOGUE-NEXT:    [[TMP78:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP79:%.*]] = load i8, ptr [[TMP78]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP80:%.*]] = insertelement <16 x i8> [[TMP76]], i8 [[TMP79]], i32 12
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE24]]
+; CHECK-EPILOGUE:       pred.load.continue24:
+; CHECK-EPILOGUE-NEXT:    [[TMP81:%.*]] = phi <16 x i8> [ [[TMP76]], [[PRED_LOAD_CONTINUE22]] ], [ [[TMP80]], [[PRED_LOAD_IF23]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP82:%.*]] = extractelement <16 x i1> [[TMP16]], i32 13
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP82]], label [[PRED_LOAD_IF25:%.*]], label [[PRED_LOAD_CONTINUE26:%.*]]
+; CHECK-EPILOGUE:       pred.load.if25:
+; CHECK-EPILOGUE-NEXT:    [[TMP83:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP84:%.*]] = load i8, ptr [[TMP83]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP85:%.*]] = insertelement <16 x i8> [[TMP81]], i8 [[TMP84]], i32 13
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE26]]
+; CHECK-EPILOGUE:       pred.load.continue26:
+; CHECK-EPILOGUE-NEXT:    [[TMP86:%.*]] = phi <16 x i8> [ [[TMP81]], [[PRED_LOAD_CONTINUE24]] ], [ [[TMP85]], [[PRED_LOAD_IF25]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP87:%.*]] = extractelement <16 x i1> [[TMP16]], i32 14
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP87]], label [[PRED_LOAD_IF27:%.*]], label [[PRED_LOAD_CONTINUE28:%.*]]
+; CHECK-EPILOGUE:       pred.load.if27:
+; CHECK-EPILOGUE-NEXT:    [[TMP88:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP14]]
+; CHECK-EPILOGUE-NEXT:    [[TMP89:%.*]] = load i8, ptr [[TMP88]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP90:%.*]] = insertelement <16 x i8> [[TMP86]], i8 [[TMP89]], i32 14
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE28]]
+; CHECK-EPILOGUE:       pred.load.continue28:
+; CHECK-EPILOGUE-NEXT:    [[TMP91:%.*]] = phi <16 x i8> [ [[TMP86]], [[PRED_LOAD_CONTINUE26]] ], [ [[TMP90]], [[PRED_LOAD_IF27]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP92:%.*]] = extractelement <16 x i1> [[TMP16]], i32 15
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP92]], label [[PRED_LOAD_IF29:%.*]], label [[PRED_LOAD_CONTINUE30:%.*]]
+; CHECK-EPILOGUE:       pred.load.if29:
+; CHECK-EPILOGUE-NEXT:    [[TMP93:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    [[TMP94:%.*]] = load i8, ptr [[TMP93]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP95:%.*]] = insertelement <16 x i8> [[TMP91]], i8 [[TMP94]], i32 15
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE30]]
+; CHECK-EPILOGUE:       pred.load.continue30:
+; CHECK-EPILOGUE-NEXT:    [[TMP96:%.*]] = phi <16 x i8> [ [[TMP91]], [[PRED_LOAD_CONTINUE28]] ], [ [[TMP95]], [[PRED_LOAD_IF29]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP97:%.*]] = sext <16 x i8> [[TMP96]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP98:%.*]] = extractelement <16 x i1> [[TMP16]], i32 0
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP98]], label [[PRED_LOAD_IF31:%.*]], label [[PRED_LOAD_CONTINUE32:%.*]]
+; CHECK-EPILOGUE:       pred.load.if31:
+; CHECK-EPILOGUE-NEXT:    [[TMP99:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP100:%.*]] = load i8, ptr [[TMP99]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP101:%.*]] = insertelement <16 x i8> poison, i8 [[TMP100]], i32 0
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE32]]
+; CHECK-EPILOGUE:       pred.load.continue32:
+; CHECK-EPILOGUE-NEXT:    [[TMP102:%.*]] = phi <16 x i8> [ poison, [[PRED_LOAD_CONTINUE30]] ], [ [[TMP101]], [[PRED_LOAD_IF31]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP103:%.*]] = extractelement <16 x i1> [[TMP16]], i32 1
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP103]], label [[PRED_LOAD_IF33:%.*]], label [[PRED_LOAD_CONTINUE34:%.*]]
+; CHECK-EPILOGUE:       pred.load.if33:
+; CHECK-EPILOGUE-NEXT:    [[TMP104:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    [[TMP105:%.*]] = load i8, ptr [[TMP104]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP106:%.*]] = insertelement <16 x i8> [[TMP102]], i8 [[TMP105]], i32 1
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE34]]
+; CHECK-EPILOGUE:       pred.load.continue34:
+; CHECK-EPILOGUE-NEXT:    [[TMP107:%.*]] = phi <16 x i8> [ [[TMP102]], [[PRED_LOAD_CONTINUE32]] ], [ [[TMP106]], [[PRED_LOAD_IF33]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP108:%.*]] = extractelement <16 x i1> [[TMP16]], i32 2
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP108]], label [[PRED_LOAD_IF35:%.*]], label [[PRED_LOAD_CONTINUE36:%.*]]
+; CHECK-EPILOGUE:       pred.load.if35:
+; CHECK-EPILOGUE-NEXT:    [[TMP109:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP2]]
+; CHECK-EPILOGUE-NEXT:    [[TMP110:%.*]] = load i8, ptr [[TMP109]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP111:%.*]] = insertelement <16 x i8> [[TMP107]], i8 [[TMP110]], i32 2
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE36]]
+; CHECK-EPILOGUE:       pred.load.continue36:
+; CHECK-EPILOGUE-NEXT:    [[TMP112:%.*]] = phi <16 x i8> [ [[TMP107]], [[PRED_LOAD_CONTINUE34]] ], [ [[TMP111]], [[PRED_LOAD_IF35]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP113:%.*]] = extractelement <16 x i1> [[TMP16]], i32 3
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP113]], label [[PRED_LOAD_IF37:%.*]], label [[PRED_LOAD_CONTINUE38:%.*]]
+; CHECK-EPILOGUE:       pred.load.if37:
+; CHECK-EPILOGUE-NEXT:    [[TMP114:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP115:%.*]] = load i8, ptr [[TMP114]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP116:%.*]] = insertelement <16 x i8> [[TMP112]], i8 [[TMP115]], i32 3
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE38]]
+; CHECK-EPILOGUE:       pred.load.continue38:
+; CHECK-EPILOGUE-NEXT:    [[TMP117:%.*]] = phi <16 x i8> [ [[TMP112]], [[PRED_LOAD_CONTINUE36]] ], [ [[TMP116]], [[PRED_LOAD_IF37]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP118:%.*]] = extractelement <16 x i1> [[TMP16]], i32 4
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP118]], label [[PRED_LOAD_IF39:%.*]], label [[PRED_LOAD_CONTINUE40:%.*]]
+; CHECK-EPILOGUE:       pred.load.if39:
+; CHECK-EPILOGUE-NEXT:    [[TMP119:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP120:%.*]] = load i8, ptr [[TMP119]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP121:%.*]] = insertelement <16 x i8> [[TMP117]], i8 [[TMP120]], i32 4
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE40]]
+; CHECK-EPILOGUE:       pred.load.continue40:
+; CHECK-EPILOGUE-NEXT:    [[TMP122:%.*]] = phi <16 x i8> [ [[TMP117]], [[PRED_LOAD_CONTINUE38]] ], [ [[TMP121]], [[PRED_LOAD_IF39]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP123:%.*]] = extractelement <16 x i1> [[TMP16]], i32 5
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP123]], label [[PRED_LOAD_IF41:%.*]], label [[PRED_LOAD_CONTINUE42:%.*]]
+; CHECK-EPILOGUE:       pred.load.if41:
+; CHECK-EPILOGUE-NEXT:    [[TMP124:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP125:%.*]] = load i8, ptr [[TMP124]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP126:%.*]] = insertelement <16 x i8> [[TMP122]], i8 [[TMP125]], i32 5
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE42]]
+; CHECK-EPILOGUE:       pred.load.continue42:
+; CHECK-EPILOGUE-NEXT:    [[TMP127:%.*]] = phi <16 x i8> [ [[TMP122]], [[PRED_LOAD_CONTINUE40]] ], [ [[TMP126]], [[PRED_LOAD_IF41]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP128:%.*]] = extractelement <16 x i1> [[TMP16]], i32 6
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP128]], label [[PRED_LOAD_IF43:%.*]], label [[PRED_LOAD_CONTINUE44:%.*]]
+; CHECK-EPILOGUE:       pred.load.if43:
+; CHECK-EPILOGUE-NEXT:    [[TMP129:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP130:%.*]] = load i8, ptr [[TMP129]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP131:%.*]] = insertelement <16 x i8> [[TMP127]], i8 [[TMP130]], i32 6
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE44]]
+; CHECK-EPILOGUE:       pred.load.continue44:
+; CHECK-EPILOGUE-NEXT:    [[TMP132:%.*]] = phi <16 x i8> [ [[TMP127]], [[PRED_LOAD_CONTINUE42]] ], [ [[TMP131]], [[PRED_LOAD_IF43]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP133:%.*]] = extractelement <16 x i1> [[TMP16]], i32 7
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP133]], label [[PRED_LOAD_IF45:%.*]], label [[PRED_LOAD_CONTINUE46:%.*]]
+; CHECK-EPILOGUE:       pred.load.if45:
+; CHECK-EPILOGUE-NEXT:    [[TMP134:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP7]]
+; CHECK-EPILOGUE-NEXT:    [[TMP135:%.*]] = load i8, ptr [[TMP134]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP136:%.*]] = insertelement <16 x i8> [[TMP132]], i8 [[TMP135]], i32 7
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE46]]
+; CHECK-EPILOGUE:       pred.load.continue46:
+; CHECK-EPILOGUE-NEXT:    [[TMP137:%.*]] = phi <16 x i8> [ [[TMP132]], [[PRED_LOAD_CONTINUE44]] ], [ [[TMP136]], [[PRED_LOAD_IF45]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP138:%.*]] = extractelement <16 x i1> [[TMP16]], i32 8
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP138]], label [[PRED_LOAD_IF47:%.*]], label [[PRED_LOAD_CONTINUE48:%.*]]
+; CHECK-EPILOGUE:       pred.load.if47:
+; CHECK-EPILOGUE-NEXT:    [[TMP139:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP8]]
+; CHECK-EPILOGUE-NEXT:    [[TMP140:%.*]] = load i8, ptr [[TMP139]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP141:%.*]] = insertelement <16 x i8> [[TMP137]], i8 [[TMP140]], i32 8
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE48]]
+; CHECK-EPILOGUE:       pred.load.continue48:
+; CHECK-EPILOGUE-NEXT:    [[TMP142:%.*]] = phi <16 x i8> [ [[TMP137]], [[PRED_LOAD_CONTINUE46]] ], [ [[TMP141]], [[PRED_LOAD_IF47]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP143:%.*]] = extractelement <16 x i1> [[TMP16]], i32 9
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP143]], label [[PRED_LOAD_IF49:%.*]], label [[PRED_LOAD_CONTINUE50:%.*]]
+; CHECK-EPILOGUE:       pred.load.if49:
+; CHECK-EPILOGUE-NEXT:    [[TMP144:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP145:%.*]] = load i8, ptr [[TMP144]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP146:%.*]] = insertelement <16 x i8> [[TMP142]], i8 [[TMP145]], i32 9
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE50]]
+; CHECK-EPILOGUE:       pred.load.continue50:
+; CHECK-EPILOGUE-NEXT:    [[TMP147:%.*]] = phi <16 x i8> [ [[TMP142]], [[PRED_LOAD_CONTINUE48]] ], [ [[TMP146]], [[PRED_LOAD_IF49]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP148:%.*]] = extractelement <16 x i1> [[TMP16]], i32 10
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP148]], label [[PRED_LOAD_IF51:%.*]], label [[PRED_LOAD_CONTINUE52:%.*]]
+; CHECK-EPILOGUE:       pred.load.if51:
+; CHECK-EPILOGUE-NEXT:    [[TMP149:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP150:%.*]] = load i8, ptr [[TMP149]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP151:%.*]] = insertelement <16 x i8> [[TMP147]], i8 [[TMP150]], i32 10
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE52]]
+; CHECK-EPILOGUE:       pred.load.continue52:
+; CHECK-EPILOGUE-NEXT:    [[TMP152:%.*]] = phi <16 x i8> [ [[TMP147]], [[PRED_LOAD_CONTINUE50]] ], [ [[TMP151]], [[PRED_LOAD_IF51]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP153:%.*]] = extractelement <16 x i1> [[TMP16]], i32 11
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP153]], label [[PRED_LOAD_IF53:%.*]], label [[PRED_LOAD_CONTINUE54:%.*]]
+; CHECK-EPILOGUE:       pred.load.if53:
+; CHECK-EPILOGUE-NEXT:    [[TMP154:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP11]]
+; CHECK-EPILOGUE-NEXT:    [[TMP155:%.*]] = load i8, ptr [[TMP154]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP156:%.*]] = insertelement <16 x i8> [[TMP152]], i8 [[TMP155]], i32 11
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE54]]
+; CHECK-EPILOGUE:       pred.load.continue54:
+; CHECK-EPILOGUE-NEXT:    [[TMP157:%.*]] = phi <16 x i8> [ [[TMP152]], [[PRED_LOAD_CONTINUE52]] ], [ [[TMP156]], [[PRED_LOAD_IF53]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP158:%.*]] = extractelement <16 x i1> [[TMP16]], i32 12
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP158]], label [[PRED_LOAD_IF55:%.*]], label [[PRED_LOAD_CONTINUE56:%.*]]
+; CHECK-EPILOGUE:       pred.load.if55:
+; CHECK-EPILOGUE-NEXT:    [[TMP159:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP160:%.*]] = load i8, ptr [[TMP159]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP161:%.*]] = insertelement <16 x i8> [[TMP157]], i8 [[TMP160]], i32 12
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE56]]
+; CHECK-EPILOGUE:       pred.load.continue56:
+; CHECK-EPILOGUE-NEXT:    [[TMP162:%.*]] = phi <16 x i8> [ [[TMP157]], [[PRED_LOAD_CONTINUE54]] ], [ [[TMP161]], [[PRED_LOAD_IF55]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP163:%.*]] = extractelement <16 x i1> [[TMP16]], i32 13
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP163]], label [[PRED_LOAD_IF57:%.*]], label [[PRED_LOAD_CONTINUE58:%.*]]
+; CHECK-EPILOGUE:       pred.load.if57:
+; CHECK-EPILOGUE-NEXT:    [[TMP164:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP165:%.*]] = load i8, ptr [[TMP164]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP166:%.*]] = insertelement <16 x i8> [[TMP162]], i8 [[TMP165]], i32 13
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE58]]
+; CHECK-EPILOGUE:       pred.load.continue58:
+; CHECK-EPILOGUE-NEXT:    [[TMP167:%.*]] = phi <16 x i8> [ [[TMP162]], [[PRED_LOAD_CONTINUE56]] ], [ [[TMP166]], [[PRED_LOAD_IF57]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP168:%.*]] = extractelement <16 x i1> [[TMP16]], i32 14
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP168]], label [[PRED_LOAD_IF59:%.*]], label [[PRED_LOAD_CONTINUE60:%.*]]
+; CHECK-EPILOGUE:       pred.load.if59:
+; CHECK-EPILOGUE-NEXT:    [[TMP169:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP14]]
+; CHECK-EPILOGUE-NEXT:    [[TMP170:%.*]] = load i8, ptr [[TMP169]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP171:%.*]] = insertelement <16 x i8> [[TMP167]], i8 [[TMP170]], i32 14
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE60]]
+; CHECK-EPILOGUE:       pred.load.continue60:
+; CHECK-EPILOGUE-NEXT:    [[TMP172:%.*]] = phi <16 x i8> [ [[TMP167]], [[PRED_LOAD_CONTINUE58]] ], [ [[TMP171]], [[PRED_LOAD_IF59]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP173:%.*]] = extractelement <16 x i1> [[TMP16]], i32 15
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP173]], label [[PRED_LOAD_IF61:%.*]], label [[PRED_LOAD_CONTINUE62]]
+; CHECK-EPILOGUE:       pred.load.if61:
+; CHECK-EPILOGUE-NEXT:    [[TMP174:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    [[TMP175:%.*]] = load i8, ptr [[TMP174]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP176:%.*]] = insertelement <16 x i8> [[TMP172]], i8 [[TMP175]], i32 15
+; CHECK-EPILOGUE-NEXT:    br label [[PRED_LOAD_CONTINUE62]]
+; CHECK-EPILOGUE:       pred.load.continue62:
+; CHECK-EPILOGUE-NEXT:    [[TMP177:%.*]] = phi <16 x i8> [ [[TMP172]], [[PRED_LOAD_CONTINUE60]] ], [ [[TMP176]], [[PRED_LOAD_IF61]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP178:%.*]] = sext <16 x i8> [[TMP177]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP179:%.*]] = mul nsw <16 x i32> [[TMP178]], [[TMP97]]
+; CHECK-EPILOGUE-NEXT:    [[TMP180:%.*]] = select <16 x i1> [[TMP16]], <16 x i32> [[TMP179]], <16 x i32> zeroinitializer
+; CHECK-EPILOGUE-NEXT:    [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.experimental.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP180]])
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[VEC_IND_NEXT]] = add <16 x i64> [[VEC_IND]], splat (i64 16)
+; CHECK-EPILOGUE-NEXT:    [[TMP181:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP181]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP182:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
+; CHECK-EPILOGUE-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP182]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
+; CHECK-EPILOGUE:       exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP182]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -2643,6 +3546,67 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) {
 ; CHECK-MAXBW-NEXT:    [[RESULT:%.*]] = add i32 [[ADD_LCSSA]], [[EXT_B_LCSSA]]
 ; CHECK-MAXBW-NEXT:    ret i32 [[RESULT]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @not_dotp_extend_user(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP14:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = getelementptr i8, ptr [[TMP1]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = getelementptr i8, ptr [[TMP1]], i32 16
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD2:%.*]] = load <16 x i8>, ptr [[TMP3]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = zext <16 x i8> [[WIDE_LOAD2]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP6]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = getelementptr i8, ptr [[TMP6]], i32 16
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD3:%.*]] = load <16 x i8>, ptr [[TMP7]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD4:%.*]] = load <16 x i8>, ptr [[TMP8]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = zext <16 x i8> [[WIDE_LOAD3]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = zext <16 x i8> [[WIDE_LOAD4]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = mul <16 x i32> [[TMP9]], [[TMP4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = mul <16 x i32> [[TMP10]], [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP13]] = add <16 x i32> [[TMP11]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP14]] = add <16 x i32> [[TMP12]], [[VEC_PHI1]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <16 x i32> [[TMP14]], [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = extractelement <16 x i32> [[TMP10]], i32 15
+; CHECK-EPILOGUE-NEXT:    br i1 true, label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP16]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[EXT_B_LCSSA:%.*]] = phi i32 [ [[EXT_B]], [[FOR_BODY]] ], [ [[TMP17]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[RESULT:%.*]] = add i32 [[ADD_LCSSA]], [[EXT_B_LCSSA]]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[RESULT]]
+;
 entry:
   br label %for.body
 
@@ -2725,3 +3689,22 @@ for.exit:                        ; preds = %for.body
 ; CHECK-MAXBW: [[LOOP15]] = distinct !{[[LOOP15]], [[META1]], [[META2]]}
 ; CHECK-MAXBW: [[LOOP16]] = distinct !{[[LOOP16]], [[META2]], [[META1]]}
 ;.
+; CHECK-EPILOGUE: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
+; CHECK-EPILOGUE: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
+; CHECK-EPILOGUE: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
+; CHECK-EPILOGUE: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP7]] = distinct !{[[LOOP7]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP8]] = distinct !{[[LOOP8]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP11]] = distinct !{[[LOOP11]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP12]] = distinct !{[[LOOP12]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP13]] = distinct !{[[LOOP13]], [[META14:![0-9]+]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[META14]] = !{!"llvm.loop.mustprogress"}
+; CHECK-EPILOGUE: [[LOOP15]] = distinct !{[[LOOP15]], [[META14]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP16]] = distinct !{[[LOOP16]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP17]] = distinct !{[[LOOP17]], [[META2]], [[META1]]}
+;.
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 32833231d98bc5..bb056bf41c1303 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-dot-product.ll
@@ -2,6 +2,7 @@
 ; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -enable-epilogue-vectorization=false -S < %s | FileCheck %s --check-prefixes=CHECK-INTERLEAVE1
 ; RUN: opt -passes=loop-vectorize -enable-epilogue-vectorization=false -S < %s | FileCheck %s --check-prefixes=CHECK-INTERLEAVED
 ; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -vectorizer-maximize-bandwidth -enable-epilogue-vectorization=false -S < %s | FileCheck %s --check-prefixes=CHECK-MAXBW
+; RUN: opt -passes=loop-vectorize -enable-epilogue-vectorization=true -S < %s | FileCheck %s --check-prefixes=CHECK-EPILOGUE
 
 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
 target triple = "aarch64-none-unknown-elf"
@@ -192,6 +193,77 @@ define i32 @dotp(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @dotp(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 8
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP2]], 8
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 8
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP23:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP24:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = getelementptr i8, ptr [[TMP7]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = mul i64 [[TMP9]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = getelementptr i8, ptr [[TMP7]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP8]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD2:%.*]] = load <vscale x 4 x i8>, ptr [[TMP11]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD2]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = getelementptr i8, ptr [[TMP14]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = mul i64 [[TMP16]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP17]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD3:%.*]] = load <vscale x 4 x i8>, ptr [[TMP15]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD4:%.*]] = load <vscale x 4 x i8>, ptr [[TMP18]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD3]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD4]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = mul <vscale x 4 x i32> [[TMP19]], [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = mul <vscale x 4 x i32> [[TMP20]], [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP23]] = add <vscale x 4 x i32> [[TMP21]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP24]] = add <vscale x 4 x i32> [[TMP22]], [[VEC_PHI1]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <vscale x 4 x i32> [[TMP24]], [[TMP23]]
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP26]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP26]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -611,6 +683,186 @@ define i32 @not_dotp_different_types(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP71]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @not_dotp_different_types(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP137:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi <16 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP138:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = add i64 [[INDEX]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = add i64 [[INDEX]], 5
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 6
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = add i64 [[INDEX]], 7
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = add i64 [[INDEX]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX]], 9
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], 10
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = add i64 [[INDEX]], 11
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = add i64 [[INDEX]], 12
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = add i64 [[INDEX]], 13
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = add i64 [[INDEX]], 14
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = add i64 [[INDEX]], 15
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = add i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = add i64 [[INDEX]], 17
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = add i64 [[INDEX]], 18
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = add i64 [[INDEX]], 19
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = add i64 [[INDEX]], 20
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = add i64 [[INDEX]], 21
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = add i64 [[INDEX]], 22
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = add i64 [[INDEX]], 23
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = add i64 [[INDEX]], 24
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = add i64 [[INDEX]], 25
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = add i64 [[INDEX]], 26
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = add i64 [[INDEX]], 27
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = add i64 [[INDEX]], 28
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = add i64 [[INDEX]], 29
+; CHECK-EPILOGUE-NEXT:    [[TMP30:%.*]] = add i64 [[INDEX]], 30
+; CHECK-EPILOGUE-NEXT:    [[TMP31:%.*]] = add i64 [[INDEX]], 31
+; CHECK-EPILOGUE-NEXT:    [[TMP32:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP33:%.*]] = getelementptr i8, ptr [[TMP32]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP34:%.*]] = getelementptr i8, ptr [[TMP32]], i32 16
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP33]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD2:%.*]] = load <16 x i8>, ptr [[TMP34]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP35:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP36:%.*]] = zext <16 x i8> [[WIDE_LOAD2]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP37:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP0]]
+; CHECK-EPILOGUE-NEXT:    [[TMP38:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    [[TMP39:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
+; CHECK-EPILOGUE-NEXT:    [[TMP40:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP41:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP42:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP43:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP44:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP7]]
+; CHECK-EPILOGUE-NEXT:    [[TMP45:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP8]]
+; CHECK-EPILOGUE-NEXT:    [[TMP46:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP47:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP48:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP11]]
+; CHECK-EPILOGUE-NEXT:    [[TMP49:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP50:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP51:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP14]]
+; CHECK-EPILOGUE-NEXT:    [[TMP52:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    [[TMP53:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP16]]
+; CHECK-EPILOGUE-NEXT:    [[TMP54:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP17]]
+; CHECK-EPILOGUE-NEXT:    [[TMP55:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP18]]
+; CHECK-EPILOGUE-NEXT:    [[TMP56:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP19]]
+; CHECK-EPILOGUE-NEXT:    [[TMP57:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP20]]
+; CHECK-EPILOGUE-NEXT:    [[TMP58:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP21]]
+; CHECK-EPILOGUE-NEXT:    [[TMP59:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP22]]
+; CHECK-EPILOGUE-NEXT:    [[TMP60:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP23]]
+; CHECK-EPILOGUE-NEXT:    [[TMP61:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP24]]
+; CHECK-EPILOGUE-NEXT:    [[TMP62:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP25]]
+; CHECK-EPILOGUE-NEXT:    [[TMP63:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP26]]
+; CHECK-EPILOGUE-NEXT:    [[TMP64:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP27]]
+; CHECK-EPILOGUE-NEXT:    [[TMP65:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP28]]
+; CHECK-EPILOGUE-NEXT:    [[TMP66:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP29]]
+; CHECK-EPILOGUE-NEXT:    [[TMP67:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP30]]
+; CHECK-EPILOGUE-NEXT:    [[TMP68:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP31]]
+; CHECK-EPILOGUE-NEXT:    [[TMP69:%.*]] = load i16, ptr [[TMP37]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP70:%.*]] = load i16, ptr [[TMP38]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP71:%.*]] = load i16, ptr [[TMP39]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP72:%.*]] = load i16, ptr [[TMP40]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP73:%.*]] = load i16, ptr [[TMP41]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP74:%.*]] = load i16, ptr [[TMP42]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP75:%.*]] = load i16, ptr [[TMP43]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP76:%.*]] = load i16, ptr [[TMP44]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP77:%.*]] = load i16, ptr [[TMP45]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP78:%.*]] = load i16, ptr [[TMP46]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP79:%.*]] = load i16, ptr [[TMP47]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP80:%.*]] = load i16, ptr [[TMP48]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP81:%.*]] = load i16, ptr [[TMP49]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP82:%.*]] = load i16, ptr [[TMP50]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP83:%.*]] = load i16, ptr [[TMP51]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP84:%.*]] = load i16, ptr [[TMP52]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP85:%.*]] = insertelement <16 x i16> poison, i16 [[TMP69]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP86:%.*]] = insertelement <16 x i16> [[TMP85]], i16 [[TMP70]], i32 1
+; CHECK-EPILOGUE-NEXT:    [[TMP87:%.*]] = insertelement <16 x i16> [[TMP86]], i16 [[TMP71]], i32 2
+; CHECK-EPILOGUE-NEXT:    [[TMP88:%.*]] = insertelement <16 x i16> [[TMP87]], i16 [[TMP72]], i32 3
+; CHECK-EPILOGUE-NEXT:    [[TMP89:%.*]] = insertelement <16 x i16> [[TMP88]], i16 [[TMP73]], i32 4
+; CHECK-EPILOGUE-NEXT:    [[TMP90:%.*]] = insertelement <16 x i16> [[TMP89]], i16 [[TMP74]], i32 5
+; CHECK-EPILOGUE-NEXT:    [[TMP91:%.*]] = insertelement <16 x i16> [[TMP90]], i16 [[TMP75]], i32 6
+; CHECK-EPILOGUE-NEXT:    [[TMP92:%.*]] = insertelement <16 x i16> [[TMP91]], i16 [[TMP76]], i32 7
+; CHECK-EPILOGUE-NEXT:    [[TMP93:%.*]] = insertelement <16 x i16> [[TMP92]], i16 [[TMP77]], i32 8
+; CHECK-EPILOGUE-NEXT:    [[TMP94:%.*]] = insertelement <16 x i16> [[TMP93]], i16 [[TMP78]], i32 9
+; CHECK-EPILOGUE-NEXT:    [[TMP95:%.*]] = insertelement <16 x i16> [[TMP94]], i16 [[TMP79]], i32 10
+; CHECK-EPILOGUE-NEXT:    [[TMP96:%.*]] = insertelement <16 x i16> [[TMP95]], i16 [[TMP80]], i32 11
+; CHECK-EPILOGUE-NEXT:    [[TMP97:%.*]] = insertelement <16 x i16> [[TMP96]], i16 [[TMP81]], i32 12
+; CHECK-EPILOGUE-NEXT:    [[TMP98:%.*]] = insertelement <16 x i16> [[TMP97]], i16 [[TMP82]], i32 13
+; CHECK-EPILOGUE-NEXT:    [[TMP99:%.*]] = insertelement <16 x i16> [[TMP98]], i16 [[TMP83]], i32 14
+; CHECK-EPILOGUE-NEXT:    [[TMP100:%.*]] = insertelement <16 x i16> [[TMP99]], i16 [[TMP84]], i32 15
+; CHECK-EPILOGUE-NEXT:    [[TMP101:%.*]] = load i16, ptr [[TMP53]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP102:%.*]] = load i16, ptr [[TMP54]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP103:%.*]] = load i16, ptr [[TMP55]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP104:%.*]] = load i16, ptr [[TMP56]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP105:%.*]] = load i16, ptr [[TMP57]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP106:%.*]] = load i16, ptr [[TMP58]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP107:%.*]] = load i16, ptr [[TMP59]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP108:%.*]] = load i16, ptr [[TMP60]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP109:%.*]] = load i16, ptr [[TMP61]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP110:%.*]] = load i16, ptr [[TMP62]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP111:%.*]] = load i16, ptr [[TMP63]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP112:%.*]] = load i16, ptr [[TMP64]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP113:%.*]] = load i16, ptr [[TMP65]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP114:%.*]] = load i16, ptr [[TMP66]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP115:%.*]] = load i16, ptr [[TMP67]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP116:%.*]] = load i16, ptr [[TMP68]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP117:%.*]] = insertelement <16 x i16> poison, i16 [[TMP101]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP118:%.*]] = insertelement <16 x i16> [[TMP117]], i16 [[TMP102]], i32 1
+; CHECK-EPILOGUE-NEXT:    [[TMP119:%.*]] = insertelement <16 x i16> [[TMP118]], i16 [[TMP103]], i32 2
+; CHECK-EPILOGUE-NEXT:    [[TMP120:%.*]] = insertelement <16 x i16> [[TMP119]], i16 [[TMP104]], i32 3
+; CHECK-EPILOGUE-NEXT:    [[TMP121:%.*]] = insertelement <16 x i16> [[TMP120]], i16 [[TMP105]], i32 4
+; CHECK-EPILOGUE-NEXT:    [[TMP122:%.*]] = insertelement <16 x i16> [[TMP121]], i16 [[TMP106]], i32 5
+; CHECK-EPILOGUE-NEXT:    [[TMP123:%.*]] = insertelement <16 x i16> [[TMP122]], i16 [[TMP107]], i32 6
+; CHECK-EPILOGUE-NEXT:    [[TMP124:%.*]] = insertelement <16 x i16> [[TMP123]], i16 [[TMP108]], i32 7
+; CHECK-EPILOGUE-NEXT:    [[TMP125:%.*]] = insertelement <16 x i16> [[TMP124]], i16 [[TMP109]], i32 8
+; CHECK-EPILOGUE-NEXT:    [[TMP126:%.*]] = insertelement <16 x i16> [[TMP125]], i16 [[TMP110]], i32 9
+; CHECK-EPILOGUE-NEXT:    [[TMP127:%.*]] = insertelement <16 x i16> [[TMP126]], i16 [[TMP111]], i32 10
+; CHECK-EPILOGUE-NEXT:    [[TMP128:%.*]] = insertelement <16 x i16> [[TMP127]], i16 [[TMP112]], i32 11
+; CHECK-EPILOGUE-NEXT:    [[TMP129:%.*]] = insertelement <16 x i16> [[TMP128]], i16 [[TMP113]], i32 12
+; CHECK-EPILOGUE-NEXT:    [[TMP130:%.*]] = insertelement <16 x i16> [[TMP129]], i16 [[TMP114]], i32 13
+; CHECK-EPILOGUE-NEXT:    [[TMP131:%.*]] = insertelement <16 x i16> [[TMP130]], i16 [[TMP115]], i32 14
+; CHECK-EPILOGUE-NEXT:    [[TMP132:%.*]] = insertelement <16 x i16> [[TMP131]], i16 [[TMP116]], i32 15
+; CHECK-EPILOGUE-NEXT:    [[TMP133:%.*]] = zext <16 x i16> [[TMP100]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP134:%.*]] = zext <16 x i16> [[TMP132]] to <16 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP135:%.*]] = mul <16 x i32> [[TMP133]], [[TMP35]]
+; CHECK-EPILOGUE-NEXT:    [[TMP136:%.*]] = mul <16 x i32> [[TMP134]], [[TMP36]]
+; CHECK-EPILOGUE-NEXT:    [[TMP137]] = add <16 x i32> [[TMP135]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP138]] = add <16 x i32> [[TMP136]], [[VEC_PHI1]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
+; CHECK-EPILOGUE-NEXT:    [[TMP139:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP139]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <16 x i32> [[TMP138]], [[TMP137]]
+; CHECK-EPILOGUE-NEXT:    [[TMP140:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    br i1 true, label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP140]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i16, ptr [[GEP_B]], align 2
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i16 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP140]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -852,6 +1104,86 @@ define i32 @not_dotp_not_loop_carried(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP29]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @not_dotp_not_loop_carried(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 16
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP2]], 16
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = mul i32 [[TMP6]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = sub i32 [[TMP7]], 1
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 8 x i32> poison, i32 0, i32 [[TMP8]]
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 8 x i32> [ [[VECTOR_RECUR_INIT]], [[VECTOR_PH]] ], [ [[TMP25:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = getelementptr i8, ptr [[TMP10]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = mul i64 [[TMP12]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[TMP10]], i64 [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 8 x i8>, ptr [[TMP11]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 8 x i8>, ptr [[TMP14]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = zext <vscale x 8 x i8> [[WIDE_LOAD]] to <vscale x 8 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = zext <vscale x 8 x i8> [[WIDE_LOAD1]] to <vscale x 8 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = getelementptr i8, ptr [[TMP17]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = mul i64 [[TMP19]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = getelementptr i8, ptr [[TMP17]], i64 [[TMP20]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD2:%.*]] = load <vscale x 8 x i8>, ptr [[TMP18]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD3:%.*]] = load <vscale x 8 x i8>, ptr [[TMP21]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = zext <vscale x 8 x i8> [[WIDE_LOAD2]] to <vscale x 8 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = zext <vscale x 8 x i8> [[WIDE_LOAD3]] to <vscale x 8 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = mul <vscale x 8 x i32> [[TMP22]], [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    [[TMP25]] = mul <vscale x 8 x i32> [[TMP23]], [[TMP16]]
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = call <vscale x 8 x i32> @llvm.vector.splice.nxv8i32(<vscale x 8 x i32> [[TMP24]], <vscale x 8 x i32> [[TMP25]], i32 -1)
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = add <vscale x 8 x i32> [[TMP25]], [[TMP26]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP28]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-EPILOGUE-NEXT:    [[TMP30:%.*]] = mul i32 [[TMP29]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP31:%.*]] = sub i32 [[TMP30]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP32:%.*]] = extractelement <vscale x 8 x i32> [[TMP27]], i32 [[TMP31]]
+; CHECK-EPILOGUE-NEXT:    [[TMP33:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-EPILOGUE-NEXT:    [[TMP34:%.*]] = mul i32 [[TMP33]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP35:%.*]] = sub i32 [[TMP34]], 1
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 8 x i32> [[TMP25]], i32 [[TMP35]]
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[MUL:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD:%.*]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP32]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -1083,6 +1415,78 @@ define i32 @not_dotp_not_phi(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP29]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @not_dotp_not_phi(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 16
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP2]], 16
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = mul i32 [[TMP6]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = sub i32 [[TMP7]], 1
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 8 x i32> poison, i32 0, i32 [[TMP8]]
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 8 x i32> [ [[VECTOR_RECUR_INIT]], [[VECTOR_PH]] ], [ [[TMP21:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = mul i64 [[TMP11]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = getelementptr i8, ptr [[TMP10]], i64 [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 8 x i8>, ptr [[TMP13]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = zext <vscale x 8 x i8> [[WIDE_LOAD]] to <vscale x 8 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = mul i64 [[TMP16]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = getelementptr i8, ptr [[TMP15]], i64 [[TMP17]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD1:%.*]] = load <vscale x 8 x i8>, ptr [[TMP18]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = zext <vscale x 8 x i8> [[WIDE_LOAD1]] to <vscale x 8 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = mul <vscale x 8 x i32> [[TMP19]], [[TMP14]]
+; CHECK-EPILOGUE-NEXT:    [[TMP21]] = add <vscale x 8 x i32> [[TMP20]], [[TMP19]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP22]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = mul i32 [[TMP23]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = sub i32 [[TMP24]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = extractelement <vscale x 8 x i32> [[TMP21]], i32 [[TMP25]]
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = mul i32 [[TMP27]], 8
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = sub i32 [[TMP28]], 1
+; CHECK-EPILOGUE-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 8 x i32> [[TMP21]], i32 [[TMP29]]
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i32 [[MUL]], [[EXT_B]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP26]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -1570,6 +1974,198 @@ define i32 @dotp_unrolled(i32 %num_out, i64 %num_in, ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[RESULT:%.*]] = add nsw i32 [[RESULT0]], [[RESULT1]]
 ; CHECK-MAXBW-NEXT:    ret i32 [[RESULT]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @dotp_unrolled(
+; CHECK-EPILOGUE-SAME: i32 [[NUM_OUT:%.*]], i64 [[NUM_IN:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 8
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[NUM_IN]], [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP2]], 8
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[NUM_IN]], [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 [[NUM_IN]], [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 8
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP80:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP81:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI2:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP64:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI3:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP65:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI4:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP48:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI5:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP49:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI6:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP32:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI7:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP33:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = or disjoint i64 [[TMP6]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP9]]
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = or disjoint i64 [[TMP6]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = or disjoint i64 [[TMP6]], 3
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = mul i64 [[TMP19]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[TMP7]], i64 [[TMP20]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP18]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD8:%.*]] = load <vscale x 4 x i8>, ptr [[TMP21]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD8]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = mul i64 [[TMP25]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i64 [[TMP26]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD9:%.*]] = load <vscale x 4 x i8>, ptr [[TMP24]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD10:%.*]] = load <vscale x 4 x i8>, ptr [[TMP27]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD9]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD10]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP30:%.*]] = mul nsw <vscale x 4 x i32> [[TMP28]], [[TMP22]]
+; CHECK-EPILOGUE-NEXT:    [[TMP31:%.*]] = mul nsw <vscale x 4 x i32> [[TMP29]], [[TMP23]]
+; CHECK-EPILOGUE-NEXT:    [[TMP32]] = add <vscale x 4 x i32> [[TMP30]], [[VEC_PHI6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP33]] = add <vscale x 4 x i32> [[TMP31]], [[VEC_PHI7]]
+; CHECK-EPILOGUE-NEXT:    [[TMP34:%.*]] = getelementptr inbounds i8, ptr [[TMP10]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP35:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP36:%.*]] = mul i64 [[TMP35]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP37:%.*]] = getelementptr inbounds i8, ptr [[TMP10]], i64 [[TMP36]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD11:%.*]] = load <vscale x 4 x i8>, ptr [[TMP34]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD12:%.*]] = load <vscale x 4 x i8>, ptr [[TMP37]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP38:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD11]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP39:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD12]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP41:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP42:%.*]] = mul i64 [[TMP41]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP43:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i64 [[TMP42]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD13:%.*]] = load <vscale x 4 x i8>, ptr [[TMP40]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD14:%.*]] = load <vscale x 4 x i8>, ptr [[TMP43]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP44:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD13]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP45:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD14]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP46:%.*]] = mul nsw <vscale x 4 x i32> [[TMP38]], [[TMP44]]
+; CHECK-EPILOGUE-NEXT:    [[TMP47:%.*]] = mul nsw <vscale x 4 x i32> [[TMP39]], [[TMP45]]
+; CHECK-EPILOGUE-NEXT:    [[TMP48]] = add <vscale x 4 x i32> [[TMP46]], [[VEC_PHI4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP49]] = add <vscale x 4 x i32> [[TMP47]], [[VEC_PHI5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP50:%.*]] = getelementptr inbounds i8, ptr [[TMP13]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP51:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP52:%.*]] = mul i64 [[TMP51]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP53:%.*]] = getelementptr inbounds i8, ptr [[TMP13]], i64 [[TMP52]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD15:%.*]] = load <vscale x 4 x i8>, ptr [[TMP50]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD16:%.*]] = load <vscale x 4 x i8>, ptr [[TMP53]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP54:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD15]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP55:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD16]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP56:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP57:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP58:%.*]] = mul i64 [[TMP57]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP59:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i64 [[TMP58]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD17:%.*]] = load <vscale x 4 x i8>, ptr [[TMP56]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD18:%.*]] = load <vscale x 4 x i8>, ptr [[TMP59]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP60:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD17]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP61:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD18]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP62:%.*]] = mul nsw <vscale x 4 x i32> [[TMP54]], [[TMP60]]
+; CHECK-EPILOGUE-NEXT:    [[TMP63:%.*]] = mul nsw <vscale x 4 x i32> [[TMP55]], [[TMP61]]
+; CHECK-EPILOGUE-NEXT:    [[TMP64]] = add <vscale x 4 x i32> [[TMP62]], [[VEC_PHI2]]
+; CHECK-EPILOGUE-NEXT:    [[TMP65]] = add <vscale x 4 x i32> [[TMP63]], [[VEC_PHI3]]
+; CHECK-EPILOGUE-NEXT:    [[TMP66:%.*]] = getelementptr inbounds i8, ptr [[TMP16]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP67:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP68:%.*]] = mul i64 [[TMP67]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP69:%.*]] = getelementptr inbounds i8, ptr [[TMP16]], i64 [[TMP68]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD19:%.*]] = load <vscale x 4 x i8>, ptr [[TMP66]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD20:%.*]] = load <vscale x 4 x i8>, ptr [[TMP69]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP70:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD19]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP71:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD20]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP72:%.*]] = getelementptr inbounds i8, ptr [[TMP17]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP73:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP74:%.*]] = mul i64 [[TMP73]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP75:%.*]] = getelementptr inbounds i8, ptr [[TMP17]], i64 [[TMP74]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD21:%.*]] = load <vscale x 4 x i8>, ptr [[TMP72]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD22:%.*]] = load <vscale x 4 x i8>, ptr [[TMP75]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP76:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD21]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP77:%.*]] = sext <vscale x 4 x i8> [[WIDE_LOAD22]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP78:%.*]] = mul nsw <vscale x 4 x i32> [[TMP70]], [[TMP76]]
+; CHECK-EPILOGUE-NEXT:    [[TMP79:%.*]] = mul nsw <vscale x 4 x i32> [[TMP71]], [[TMP77]]
+; CHECK-EPILOGUE-NEXT:    [[TMP80]] = add <vscale x 4 x i32> [[TMP78]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP81]] = add <vscale x 4 x i32> [[TMP79]], [[VEC_PHI1]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP82:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP82]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <vscale x 4 x i32> [[TMP81]], [[TMP80]]
+; CHECK-EPILOGUE-NEXT:    [[TMP83:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX23:%.*]] = add <vscale x 4 x i32> [[TMP65]], [[TMP64]]
+; CHECK-EPILOGUE-NEXT:    [[TMP84:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[BIN_RDX23]])
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX24:%.*]] = add <vscale x 4 x i32> [[TMP49]], [[TMP48]]
+; CHECK-EPILOGUE-NEXT:    [[TMP85:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[BIN_RDX24]])
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX25:%.*]] = add <vscale x 4 x i32> [[TMP33]], [[TMP32]]
+; CHECK-EPILOGUE-NEXT:    [[TMP86:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[BIN_RDX25]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[NUM_IN]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP83]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX26:%.*]] = phi i32 [ [[TMP84]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX27:%.*]] = phi i32 [ [[TMP85]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX28:%.*]] = phi i32 [ [[TMP86]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM3:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD_A3:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM2:%.*]] = phi i32 [ [[BC_MERGE_RDX26]], [[SCALAR_PH]] ], [ [[ADD_A2:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM1:%.*]] = phi i32 [ [[BC_MERGE_RDX27]], [[SCALAR_PH]] ], [ [[ADD_A1:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM0:%.*]] = phi i32 [ [[BC_MERGE_RDX28]], [[SCALAR_PH]] ], [ [[ADD_A0:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A0:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B0:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[OFFSET_1:%.*]] = or disjoint i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[GEP_A1:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[OFFSET_1]]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B1:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[OFFSET_1]]
+; CHECK-EPILOGUE-NEXT:    [[OFFSET_2:%.*]] = or disjoint i64 [[IV]], 2
+; CHECK-EPILOGUE-NEXT:    [[GEP_A2:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[OFFSET_2]]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[OFFSET_2]]
+; CHECK-EPILOGUE-NEXT:    [[OFFSET_3:%.*]] = or disjoint i64 [[IV]], 3
+; CHECK-EPILOGUE-NEXT:    [[GEP_A3:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[OFFSET_3]]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B3:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[OFFSET_3]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A0:%.*]] = load i8, ptr [[GEP_A0]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A0:%.*]] = sext i8 [[LOAD_A0]] to i32
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B0:%.*]] = load i8, ptr [[GEP_B0]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B0:%.*]] = sext i8 [[LOAD_B0]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_A0:%.*]] = mul nsw i32 [[EXT_B0]], [[EXT_A0]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A0]] = add nsw i32 [[MUL_A0]], [[ACCUM0]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A1:%.*]] = load i8, ptr [[GEP_A1]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A1:%.*]] = sext i8 [[LOAD_A1]] to i32
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B1:%.*]] = load i8, ptr [[GEP_B1]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B1:%.*]] = sext i8 [[LOAD_B1]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_A1:%.*]] = mul nsw i32 [[EXT_A1]], [[EXT_B1]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A1]] = add nsw i32 [[MUL_A1]], [[ACCUM1]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A2:%.*]] = load i8, ptr [[GEP_A2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A2:%.*]] = sext i8 [[LOAD_A2]] to i32
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B2:%.*]] = load i8, ptr [[GEP_B2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B2:%.*]] = sext i8 [[LOAD_B2]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_A2:%.*]] = mul nsw i32 [[EXT_A2]], [[EXT_B2]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A2]] = add nsw i32 [[MUL_A2]], [[ACCUM2]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A3:%.*]] = load i8, ptr [[GEP_A3]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A3:%.*]] = sext i8 [[LOAD_A3]] to i32
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B3:%.*]] = load i8, ptr [[GEP_B3]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B3:%.*]] = sext i8 [[LOAD_B3]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_A3:%.*]] = mul nsw i32 [[EXT_A3]], [[EXT_B3]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A3]] = add nsw i32 [[MUL_A3]], [[ACCUM3]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[NUM_IN]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
+; CHECK-EPILOGUE:       exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_A0_LCSSA:%.*]] = phi i32 [ [[ADD_A0]], [[FOR_BODY]] ], [ [[TMP86]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A1_LCSSA:%.*]] = phi i32 [ [[ADD_A1]], [[FOR_BODY]] ], [ [[TMP85]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A2_LCSSA:%.*]] = phi i32 [ [[ADD_A2]], [[FOR_BODY]] ], [ [[TMP84]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_A3_LCSSA:%.*]] = phi i32 [ [[ADD_A3]], [[FOR_BODY]] ], [ [[TMP83]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[RESULT0:%.*]] = add nsw i32 [[ADD_A0_LCSSA]], [[ADD_A1_LCSSA]]
+; CHECK-EPILOGUE-NEXT:    [[RESULT1:%.*]] = add nsw i32 [[ADD_A2_LCSSA]], [[ADD_A3_LCSSA]]
+; CHECK-EPILOGUE-NEXT:    [[RESULT:%.*]] = add nsw i32 [[RESULT0]], [[RESULT1]]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[RESULT]]
+;
 entry:
   br label %for.body
 
@@ -1824,6 +2420,72 @@ define i32 @dotp_predicated(i64 %N, ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP21]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i32 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @dotp_predicated(
+; CHECK-EPILOGUE-SAME: i64 [[N:%.*]], ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = sub i64 [[TMP1]], 1
+; CHECK-EPILOGUE-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP2]]
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = mul i64 [[TMP3]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP5]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = sub i64 [[N]], [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = icmp ugt i64 [[N]], [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = select i1 [[TMP8]], i64 [[TMP7]], i64 0
+; CHECK-EPILOGUE-NEXT:    [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[N]])
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP19:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP12]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = sext <vscale x 4 x i8> [[WIDE_MASKED_LOAD]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 4 x i8> @llvm.masked.load.nxv4i8.p0(ptr [[TMP15]], i32 1, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i8> poison)
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = sext <vscale x 4 x i8> [[WIDE_MASKED_LOAD1]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = mul nsw <vscale x 4 x i32> [[TMP16]], [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = add <vscale x 4 x i32> [[TMP17]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP19]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> [[TMP18]], <vscale x 4 x i32> [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
+; CHECK-EPILOGUE-NEXT:    [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX]], i64 [[TMP9]])
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], splat (i1 true)
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = extractelement <vscale x 4 x i1> [[TMP20]], i32 0
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP19]])
+; CHECK-EPILOGUE-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP22]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = sext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = sext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul nsw i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add nsw i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
+; CHECK-EPILOGUE:       exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP22]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -2050,6 +2712,83 @@ define i32 @not_dotp_extend_user(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[RESULT:%.*]] = add i32 [[ADD_LCSSA]], [[EXT_B_LCSSA]]
 ; CHECK-MAXBW-NEXT:    ret i32 [[RESULT]]
 ;
+; CHECK-EPILOGUE-LABEL: define i32 @not_dotp_extend_user(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 8
+; CHECK-EPILOGUE-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP2]], 8
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 8
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP23:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP24:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = getelementptr i8, ptr [[TMP7]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = mul i64 [[TMP9]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = getelementptr i8, ptr [[TMP7]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP8]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD2:%.*]] = load <vscale x 4 x i8>, ptr [[TMP11]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD2]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = getelementptr i8, ptr [[TMP14]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = mul i64 [[TMP16]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP17]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD3:%.*]] = load <vscale x 4 x i8>, ptr [[TMP15]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD4:%.*]] = load <vscale x 4 x i8>, ptr [[TMP18]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD3]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = zext <vscale x 4 x i8> [[WIDE_LOAD4]] to <vscale x 4 x i32>
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = mul <vscale x 4 x i32> [[TMP19]], [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = mul <vscale x 4 x i32> [[TMP20]], [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP23]] = add <vscale x 4 x i32> [[TMP21]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP24]] = add <vscale x 4 x i32> [[TMP22]], [[VEC_PHI1]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <vscale x 4 x i32> [[TMP24]], [[TMP23]]
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = call i32 @llvm.vscale.i32()
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = mul i32 [[TMP27]], 4
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = sub i32 [[TMP28]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP30:%.*]] = extractelement <vscale x 4 x i32> [[TMP20]], i32 [[TMP29]]
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP26]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr [[GEP_A]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul i32 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[EXT_B_LCSSA:%.*]] = phi i32 [ [[EXT_B]], [[FOR_BODY]] ], [ [[TMP30]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP26]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[RESULT:%.*]] = add i32 [[ADD_LCSSA]], [[EXT_B_LCSSA]]
+; CHECK-EPILOGUE-NEXT:    ret i32 [[RESULT]]
+;
 entry:
   br label %for.body
 
@@ -2265,6 +3004,79 @@ define i64 @dotp_cost_disagreement(ptr %a, ptr %b) #0 {
 ; CHECK-MAXBW-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP16]], [[MIDDLE_BLOCK]] ]
 ; CHECK-MAXBW-NEXT:    ret i64 [[ADD_LCSSA]]
 ;
+; CHECK-EPILOGUE-LABEL: define i64 @dotp_cost_disagreement(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 4
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 16, [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = mul i64 [[TMP2]], 4
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 16, [[TMP3]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 16, [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 4
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <vscale x 2 x i64> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP24:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi <vscale x 2 x i64> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP25:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = getelementptr inbounds nuw i8, ptr [[A]], i64 [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP7]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = mul i64 [[TMP9]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP7]], i64 [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <vscale x 2 x i8>, ptr [[TMP8]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD2:%.*]] = load <vscale x 2 x i8>, ptr [[TMP11]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = zext <vscale x 2 x i8> [[WIDE_LOAD]] to <vscale x 2 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = zext <vscale x 2 x i8> [[WIDE_LOAD2]] to <vscale x 2 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = add nuw nsw i64 [[TMP6]], 1
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = getelementptr inbounds nuw i8, ptr [[B]], i64 [[TMP14]]
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP15]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = mul i64 [[TMP17]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP15]], i64 [[TMP18]]
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD3:%.*]] = load <vscale x 2 x i8>, ptr [[TMP16]], align 1
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD4:%.*]] = load <vscale x 2 x i8>, ptr [[TMP19]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = zext <vscale x 2 x i8> [[WIDE_LOAD3]] to <vscale x 2 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = zext <vscale x 2 x i8> [[WIDE_LOAD4]] to <vscale x 2 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = mul nuw nsw <vscale x 2 x i64> [[TMP20]], [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = mul nuw nsw <vscale x 2 x i64> [[TMP21]], [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP24]] = add <vscale x 2 x i64> [[VEC_PHI]], [[TMP22]]
+; CHECK-EPILOGUE-NEXT:    [[TMP25]] = add <vscale x 2 x i64> [[VEC_PHI1]], [[TMP23]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP26]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <vscale x 2 x i64> [[TMP25]], [[TMP24]]
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 16, [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[TMP27]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[I_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[I_IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[SUM:%.*]] = phi i64 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i8, ptr [[A]], i64 [[I_IV]]
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
+; CHECK-EPILOGUE-NEXT:    [[CONV:%.*]] = zext i8 [[TMP28]] to i64
+; CHECK-EPILOGUE-NEXT:    [[I_IV_NEXT]] = add nuw nsw i64 [[I_IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i8, ptr [[B]], i64 [[I_IV_NEXT]]
+; CHECK-EPILOGUE-NEXT:    [[TMP29:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
+; CHECK-EPILOGUE-NEXT:    [[CONV3:%.*]] = zext i8 [[TMP29]] to i64
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul nuw nsw i64 [[CONV3]], [[CONV]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i64 [[SUM]], [[MUL]]
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[I_IV_NEXT]], 16
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
+; CHECK-EPILOGUE:       exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP27]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    ret i64 [[ADD_LCSSA]]
+;
 entry:
   br label %for.body
 
@@ -2452,6 +3264,94 @@ define void @not_dotp_not_phi2(ptr %matrix, i32 %n) #0 {
 ; CHECK-MAXBW-NEXT:    store float [[RESULT]], ptr [[MATRIX]], align 4
 ; CHECK-MAXBW-NEXT:    ret void
 ;
+; CHECK-EPILOGUE-LABEL: define void @not_dotp_not_phi2(
+; CHECK-EPILOGUE-SAME: ptr [[MATRIX:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[N]], 0
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP]], label [[FOR_PREHEADER:%.*]], label [[EXIT:%.*]]
+; CHECK-EPILOGUE:       for.preheader:
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i8, ptr null, align 1
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A1:%.*]] = load i8, ptr inttoptr (i64 1 to ptr), align 1
+; CHECK-EPILOGUE-NEXT:    [[A_EXT:%.*]] = sext i8 [[LOAD_A]] to i32
+; CHECK-EPILOGUE-NEXT:    [[A_EXT1:%.*]] = sext i8 [[LOAD_A1]] to i32
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = zext i32 [[N]] to i64
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 2
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 2
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = trunc i64 [[N_VEC]] to i32
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = mul i64 [[N_VEC]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP2]]
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[TMP24:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI1:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[TMP25:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = add i64 [[OFFSET_IDX]], 16
+; CHECK-EPILOGUE-NEXT:    [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP4]]
+; CHECK-EPILOGUE-NEXT:    [[NEXT_GEP2:%.*]] = getelementptr i8, ptr [[MATRIX]], i64 [[TMP5]]
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = getelementptr i8, ptr [[NEXT_GEP]], i64 1
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[NEXT_GEP2]], i64 1
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = getelementptr i8, ptr [[NEXT_GEP]], i64 2
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[NEXT_GEP2]], i64 2
+; CHECK-EPILOGUE-NEXT:    [[TMP10:%.*]] = load i8, ptr [[TMP6]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP11:%.*]] = load i8, ptr [[TMP7]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = sext i8 [[TMP10]] to i32
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = sext i8 [[TMP11]] to i32
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = mul nsw i32 [[A_EXT]], [[TMP12]]
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = mul nsw i32 [[A_EXT]], [[TMP13]]
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = add i32 [[TMP14]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = add i32 [[TMP15]], [[VEC_PHI1]]
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = load i8, ptr [[TMP8]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = load i8, ptr [[TMP9]], align 1
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = sext i8 [[TMP18]] to i32
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = sext i8 [[TMP19]] to i32
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = mul nsw i32 [[A_EXT1]], [[TMP20]]
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = mul nsw i32 [[A_EXT1]], [[TMP21]]
+; CHECK-EPILOGUE-NEXT:    [[TMP24]] = add i32 [[TMP22]], [[TMP16]]
+; CHECK-EPILOGUE-NEXT:    [[TMP25]] = add i32 [[TMP23]], [[TMP17]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP26:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP26]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add i32 [[TMP25]], [[TMP24]]
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK-EPILOGUE:       scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i32 [ [[TMP1]], [[MIDDLE_BLOCK]] ], [ 0, [[FOR_PREHEADER]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL3:%.*]] = phi ptr [ [[TMP3]], [[MIDDLE_BLOCK]] ], [ [[MATRIX]], [[FOR_PREHEADER]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i32 [ [[BIN_RDX]], [[MIDDLE_BLOCK]] ], [ 0, [[FOR_PREHEADER]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
+; CHECK-EPILOGUE-NEXT:    [[PTR:%.*]] = phi ptr [ [[SCEVGEP:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL3]], [[SCALAR_PH]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i32 [ [[ADD_1:%.*]], [[FOR_BODY]] ], [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_B:%.*]] = getelementptr i8, ptr [[PTR]], i64 1
+; CHECK-EPILOGUE-NEXT:    [[GEP_B1:%.*]] = getelementptr i8, ptr [[PTR]], i64 2
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B:%.*]] = load i8, ptr [[GEP_B]], align 1
+; CHECK-EPILOGUE-NEXT:    [[B_EXT:%.*]] = sext i8 [[LOAD_B]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul nsw i32 [[A_EXT]], [[B_EXT]]
+; CHECK-EPILOGUE-NEXT:    [[ADD:%.*]] = add i32 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_B1:%.*]] = load i8, ptr [[GEP_B1]], align 1
+; CHECK-EPILOGUE-NEXT:    [[B_EXT1:%.*]] = sext i8 [[LOAD_B1]] to i32
+; CHECK-EPILOGUE-NEXT:    [[MUL_1:%.*]] = mul nsw i32 [[A_EXT1]], [[B_EXT1]]
+; CHECK-EPILOGUE-NEXT:    [[ADD_1]] = add i32 [[MUL_1]], [[ADD]]
+; CHECK-EPILOGUE-NEXT:    [[SCEVGEP]] = getelementptr i8, ptr [[PTR]], i64 16
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i32 [[IV_NEXT]], [[N]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
+; CHECK-EPILOGUE:       for.exit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_1_LCSSA:%.*]] = phi i32 [ [[ADD_1]], [[FOR_BODY]] ], [ [[BIN_RDX]], [[MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    [[ADD_FLOAT:%.*]] = sitofp i32 [[ADD_1_LCSSA]] to float
+; CHECK-EPILOGUE-NEXT:    br label [[EXIT]]
+; CHECK-EPILOGUE:       exit:
+; CHECK-EPILOGUE-NEXT:    [[RESULT:%.*]] = phi float [ 0.000000e+00, [[ENTRY:%.*]] ], [ [[ADD_FLOAT]], [[FOR_EXIT]] ]
+; CHECK-EPILOGUE-NEXT:    store float [[RESULT]], ptr [[MATRIX]], align 4
+; CHECK-EPILOGUE-NEXT:    ret void
+;
 entry:
   %cmp = icmp sgt i32 %n, 0
   br i1 %cmp, label %for.preheader, label %exit
@@ -2669,6 +3569,108 @@ define i64 @not_dotp_ext_outside_plan(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-MAXBW-NEXT:    [[RESULT:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[ADD_LCSSA]], [[EXIT_LOOPEXIT]] ]
 ; CHECK-MAXBW-NEXT:    ret i64 [[RESULT]]
 ;
+; CHECK-EPILOGUE-LABEL: define i64 @not_dotp_ext_outside_plan(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], i16 [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[CMP:%.*]] = icmp eq i64 [[N]], 0
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP]], label [[EXIT:%.*]], label [[ITER_CHECK:%.*]]
+; CHECK-EPILOGUE:       iter.check:
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i16 [[B]] to i64
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 2
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]]
+; CHECK-EPILOGUE:       vector.main.loop.iter.check:
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], 16
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i64> poison, i64 [[EXT_B]], i64 0
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i64> [[BROADCAST_SPLATINSERT]], <8 x i64> poison, <8 x i32> zeroinitializer
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <8 x i64> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP10:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI2:%.*]] = phi <8 x i64> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP11:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = getelementptr inbounds nuw i16, ptr [[A]], i64 [[TMP2]]
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = getelementptr inbounds nuw i16, ptr [[TMP3]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = getelementptr inbounds nuw i16, ptr [[TMP3]], i32 8
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i16>, ptr [[TMP4]], align 2
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i16>, ptr [[TMP5]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = zext <8 x i16> [[WIDE_LOAD]] to <8 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = zext <8 x i16> [[WIDE_LOAD3]] to <8 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = mul nuw nsw <8 x i64> [[TMP6]], [[BROADCAST_SPLAT]]
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = mul nuw nsw <8 x i64> [[TMP7]], [[BROADCAST_SPLAT]]
+; CHECK-EPILOGUE-NEXT:    [[TMP10]] = add <8 x i64> [[TMP8]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP11]] = add <8 x i64> [[TMP9]], [[VEC_PHI2]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP21:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <8 x i64> [[TMP11]], [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = call i64 @llvm.vector.reduce.add.v8i64(<8 x i64> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[EXIT_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]]
+; CHECK-EPILOGUE:       vec.epilog.iter.check:
+; CHECK-EPILOGUE-NEXT:    [[N_VEC_REMAINING:%.*]] = sub i64 [[N]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = mul i64 [[TMP14]], 2
+; CHECK-EPILOGUE-NEXT:    [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]]
+; CHECK-EPILOGUE:       vec.epilog.ph:
+; CHECK-EPILOGUE-NEXT:    [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[TMP13]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = mul i64 [[TMP16]], 2
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF4:%.*]] = urem i64 [[N]], [[TMP17]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC5:%.*]] = sub i64 [[N]], [[N_MOD_VF4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = mul i64 [[TMP18]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = insertelement <vscale x 2 x i64> zeroinitializer, i64 [[BC_MERGE_RDX]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLATINSERT9:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[EXT_B]], i64 0
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLAT10:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT9]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
+; CHECK-EPILOGUE-NEXT:    br label [[VEC_EPILOG_VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vec.epilog.vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX6:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT11:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI7:%.*]] = phi <vscale x 2 x i64> [ [[TMP20]], [[VEC_EPILOG_PH]] ], [ [[TMP26:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = add i64 [[INDEX6]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = getelementptr inbounds nuw i16, ptr [[A]], i64 [[TMP21]]
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = getelementptr inbounds nuw i16, ptr [[TMP22]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD8:%.*]] = load <vscale x 2 x i16>, ptr [[TMP23]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = zext <vscale x 2 x i16> [[WIDE_LOAD8]] to <vscale x 2 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = mul nuw nsw <vscale x 2 x i64> [[TMP24]], [[BROADCAST_SPLAT10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP26]] = add <vscale x 2 x i64> [[TMP25]], [[VEC_PHI7]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT11]] = add nuw i64 [[INDEX6]], [[TMP19]]
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = icmp eq i64 [[INDEX_NEXT11]], [[N_VEC5]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP27]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
+; CHECK-EPILOGUE:       vec.epilog.middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> [[TMP26]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N12:%.*]] = icmp eq i64 [[N]], [[N_VEC5]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N12]], label [[EXIT_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]]
+; CHECK-EPILOGUE:       vec.epilog.scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC5]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX13:%.*]] = phi i64 [ [[TMP28]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[TMP13]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i64 [ [[BC_MERGE_RDX13]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds nuw i16, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i16, ptr [[GEP_A]], align 2
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i16 [[LOAD_A]] to i64
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul nuw nsw i64 [[EXT_A]], [[EXT_B]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i64 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
+; CHECK-EPILOGUE:       exit.loopexit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP13]], [[MIDDLE_BLOCK]] ], [ [[TMP28]], [[VEC_EPILOG_MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[EXIT]]
+; CHECK-EPILOGUE:       exit:
+; CHECK-EPILOGUE-NEXT:    [[RESULT:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[ADD_LCSSA]], [[EXIT_LOOPEXIT]] ]
+; CHECK-EPILOGUE-NEXT:    ret i64 [[RESULT]]
+;
 entry:
   %cmp = icmp eq i64 %n, 0
   br i1 %cmp, label %exit, label %for.ph
@@ -2870,6 +3872,108 @@ define i64 @not_dotp_ext_outside_plan2(ptr %a, i16 %b, i64 %n) #0 {
 ; CHECK-MAXBW-NEXT:    [[RESULT:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[ADD_LCSSA]], [[EXIT_LOOPEXIT]] ]
 ; CHECK-MAXBW-NEXT:    ret i64 [[RESULT]]
 ;
+; CHECK-EPILOGUE-LABEL: define i64 @not_dotp_ext_outside_plan2(
+; CHECK-EPILOGUE-SAME: ptr [[A:%.*]], i16 [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
+; CHECK-EPILOGUE-NEXT:  entry:
+; CHECK-EPILOGUE-NEXT:    [[CMP:%.*]] = icmp eq i64 [[N]], 0
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP]], label [[EXIT:%.*]], label [[ITER_CHECK:%.*]]
+; CHECK-EPILOGUE:       iter.check:
+; CHECK-EPILOGUE-NEXT:    [[EXT_B:%.*]] = zext i16 [[B]] to i64
+; CHECK-EPILOGUE-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 2
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], [[TMP1]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]]
+; CHECK-EPILOGUE:       vector.main.loop.iter.check:
+; CHECK-EPILOGUE-NEXT:    [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], 16
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-EPILOGUE:       vector.ph:
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
+; CHECK-EPILOGUE-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i64> poison, i64 [[EXT_B]], i64 0
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i64> [[BROADCAST_SPLATINSERT]], <8 x i64> poison, <8 x i32> zeroinitializer
+; CHECK-EPILOGUE-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI:%.*]] = phi <8 x i64> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP10:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI2:%.*]] = phi <8 x i64> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP11:%.*]], [[VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP3:%.*]] = getelementptr inbounds nuw i16, ptr [[A]], i64 [[TMP2]]
+; CHECK-EPILOGUE-NEXT:    [[TMP4:%.*]] = getelementptr inbounds nuw i16, ptr [[TMP3]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[TMP5:%.*]] = getelementptr inbounds nuw i16, ptr [[TMP3]], i32 8
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD:%.*]] = load <8 x i16>, ptr [[TMP4]], align 2
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD3:%.*]] = load <8 x i16>, ptr [[TMP5]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP6:%.*]] = zext <8 x i16> [[WIDE_LOAD]] to <8 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP7:%.*]] = zext <8 x i16> [[WIDE_LOAD3]] to <8 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP8:%.*]] = mul nuw nsw <8 x i64> [[BROADCAST_SPLAT]], [[TMP6]]
+; CHECK-EPILOGUE-NEXT:    [[TMP9:%.*]] = mul nuw nsw <8 x i64> [[BROADCAST_SPLAT]], [[TMP7]]
+; CHECK-EPILOGUE-NEXT:    [[TMP10]] = add <8 x i64> [[TMP8]], [[VEC_PHI]]
+; CHECK-EPILOGUE-NEXT:    [[TMP11]] = add <8 x i64> [[TMP9]], [[VEC_PHI2]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
+; CHECK-EPILOGUE-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
+; CHECK-EPILOGUE:       middle.block:
+; CHECK-EPILOGUE-NEXT:    [[BIN_RDX:%.*]] = add <8 x i64> [[TMP11]], [[TMP10]]
+; CHECK-EPILOGUE-NEXT:    [[TMP13:%.*]] = call i64 @llvm.vector.reduce.add.v8i64(<8 x i64> [[BIN_RDX]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N]], label [[EXIT_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]]
+; CHECK-EPILOGUE:       vec.epilog.iter.check:
+; CHECK-EPILOGUE-NEXT:    [[N_VEC_REMAINING:%.*]] = sub i64 [[N]], [[N_VEC]]
+; CHECK-EPILOGUE-NEXT:    [[TMP14:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP15:%.*]] = mul i64 [[TMP14]], 2
+; CHECK-EPILOGUE-NEXT:    [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], [[TMP15]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]]
+; CHECK-EPILOGUE:       vec.epilog.ph:
+; CHECK-EPILOGUE-NEXT:    [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[TMP13]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP17:%.*]] = mul i64 [[TMP16]], 2
+; CHECK-EPILOGUE-NEXT:    [[N_MOD_VF4:%.*]] = urem i64 [[N]], [[TMP17]]
+; CHECK-EPILOGUE-NEXT:    [[N_VEC5:%.*]] = sub i64 [[N]], [[N_MOD_VF4]]
+; CHECK-EPILOGUE-NEXT:    [[TMP18:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-EPILOGUE-NEXT:    [[TMP19:%.*]] = mul i64 [[TMP18]], 2
+; CHECK-EPILOGUE-NEXT:    [[TMP20:%.*]] = insertelement <vscale x 2 x i64> zeroinitializer, i64 [[BC_MERGE_RDX]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLATINSERT9:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[EXT_B]], i64 0
+; CHECK-EPILOGUE-NEXT:    [[BROADCAST_SPLAT10:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT9]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
+; CHECK-EPILOGUE-NEXT:    br label [[VEC_EPILOG_VECTOR_BODY:%.*]]
+; CHECK-EPILOGUE:       vec.epilog.vector.body:
+; CHECK-EPILOGUE-NEXT:    [[INDEX6:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT11:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[VEC_PHI7:%.*]] = phi <vscale x 2 x i64> [ [[TMP20]], [[VEC_EPILOG_PH]] ], [ [[TMP26:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[TMP21:%.*]] = add i64 [[INDEX6]], 0
+; CHECK-EPILOGUE-NEXT:    [[TMP22:%.*]] = getelementptr inbounds nuw i16, ptr [[A]], i64 [[TMP21]]
+; CHECK-EPILOGUE-NEXT:    [[TMP23:%.*]] = getelementptr inbounds nuw i16, ptr [[TMP22]], i32 0
+; CHECK-EPILOGUE-NEXT:    [[WIDE_LOAD8:%.*]] = load <vscale x 2 x i16>, ptr [[TMP23]], align 2
+; CHECK-EPILOGUE-NEXT:    [[TMP24:%.*]] = zext <vscale x 2 x i16> [[WIDE_LOAD8]] to <vscale x 2 x i64>
+; CHECK-EPILOGUE-NEXT:    [[TMP25:%.*]] = mul nuw nsw <vscale x 2 x i64> [[BROADCAST_SPLAT10]], [[TMP24]]
+; CHECK-EPILOGUE-NEXT:    [[TMP26]] = add <vscale x 2 x i64> [[TMP25]], [[VEC_PHI7]]
+; CHECK-EPILOGUE-NEXT:    [[INDEX_NEXT11]] = add nuw i64 [[INDEX6]], [[TMP19]]
+; CHECK-EPILOGUE-NEXT:    [[TMP27:%.*]] = icmp eq i64 [[INDEX_NEXT11]], [[N_VEC5]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[TMP27]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP25:![0-9]+]]
+; CHECK-EPILOGUE:       vec.epilog.middle.block:
+; CHECK-EPILOGUE-NEXT:    [[TMP28:%.*]] = call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> [[TMP26]])
+; CHECK-EPILOGUE-NEXT:    [[CMP_N12:%.*]] = icmp eq i64 [[N]], [[N_VEC5]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_N12]], label [[EXIT_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]]
+; CHECK-EPILOGUE:       vec.epilog.scalar.ph:
+; CHECK-EPILOGUE-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC5]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    [[BC_MERGE_RDX13:%.*]] = phi i64 [ [[TMP28]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ 0, [[ITER_CHECK]] ], [ [[TMP13]], [[VEC_EPILOG_ITER_CHECK]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK-EPILOGUE:       for.body:
+; CHECK-EPILOGUE-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[ACCUM:%.*]] = phi i64 [ [[BC_MERGE_RDX13]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
+; CHECK-EPILOGUE-NEXT:    [[GEP_A:%.*]] = getelementptr inbounds nuw i16, ptr [[A]], i64 [[IV]]
+; CHECK-EPILOGUE-NEXT:    [[LOAD_A:%.*]] = load i16, ptr [[GEP_A]], align 2
+; CHECK-EPILOGUE-NEXT:    [[EXT_A:%.*]] = zext i16 [[LOAD_A]] to i64
+; CHECK-EPILOGUE-NEXT:    [[MUL:%.*]] = mul nuw nsw i64 [[EXT_B]], [[EXT_A]]
+; CHECK-EPILOGUE-NEXT:    [[ADD]] = add i64 [[MUL]], [[ACCUM]]
+; CHECK-EPILOGUE-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
+; CHECK-EPILOGUE-NEXT:    [[CMP_1:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]]
+; CHECK-EPILOGUE-NEXT:    br i1 [[CMP_1]], label [[EXIT_LOOPEXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP26:![0-9]+]]
+; CHECK-EPILOGUE:       exit.loopexit:
+; CHECK-EPILOGUE-NEXT:    [[ADD_LCSSA:%.*]] = phi i64 [ [[ADD]], [[FOR_BODY]] ], [ [[TMP13]], [[MIDDLE_BLOCK]] ], [ [[TMP28]], [[VEC_EPILOG_MIDDLE_BLOCK]] ]
+; CHECK-EPILOGUE-NEXT:    br label [[EXIT]]
+; CHECK-EPILOGUE:       exit:
+; CHECK-EPILOGUE-NEXT:    [[RESULT:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[ADD_LCSSA]], [[EXIT_LOOPEXIT]] ]
+; CHECK-EPILOGUE-NEXT:    ret i64 [[RESULT]]
+;
 entry:
   %cmp = icmp eq i64 %n, 0
   br i1 %cmp, label %exit, label %for.ph
@@ -2975,3 +4079,31 @@ attributes #0 = { vscale_range(1,16) "target-features"="+sve" }
 ; CHECK-MAXBW: [[LOOP21]] = distinct !{[[LOOP21]], [[META1]], [[META2]]}
 ; CHECK-MAXBW: [[LOOP22]] = distinct !{[[LOOP22]], [[META2]], [[META1]]}
 ;.
+; CHECK-EPILOGUE: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
+; CHECK-EPILOGUE: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
+; CHECK-EPILOGUE: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
+; CHECK-EPILOGUE: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP7]] = distinct !{[[LOOP7]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP8]] = distinct !{[[LOOP8]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP12]] = distinct !{[[LOOP12]], [[META13:![0-9]+]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[META13]] = !{!"llvm.loop.mustprogress"}
+; CHECK-EPILOGUE: [[LOOP14]] = distinct !{[[LOOP14]], [[META13]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP15]] = distinct !{[[LOOP15]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP16]] = distinct !{[[LOOP16]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP17]] = distinct !{[[LOOP17]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP18]] = distinct !{[[LOOP18]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP19]] = distinct !{[[LOOP19]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP20]] = distinct !{[[LOOP20]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP21]] = distinct !{[[LOOP21]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP22]] = distinct !{[[LOOP22]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP23]] = distinct !{[[LOOP23]], [[META2]], [[META1]]}
+; CHECK-EPILOGUE: [[LOOP24]] = distinct !{[[LOOP24]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP25]] = distinct !{[[LOOP25]], [[META1]], [[META2]]}
+; CHECK-EPILOGUE: [[LOOP26]] = distinct !{[[LOOP26]], [[META2]], [[META1]]}
+;.

>From ca11aed2d3bb73fdf86b9a1682d2ae595fa5d0a6 Mon Sep 17 00:00:00 2001
From: James Chesterman <james.chesterman at arm.com>
Date: Fri, 31 Jan 2025 14:20:06 +0000
Subject: [PATCH 5/5] Address comments on PR

Involves adding an extra if statement and changing a comment.
---
 llvm/lib/Transforms/Vectorize/LoopVectorize.cpp | 4 ++--
 llvm/lib/Transforms/Vectorize/VPlan.h           | 3 +--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 333090821b915a..075350eabe8001 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -8897,8 +8897,8 @@ VPRecipeBuilder::tryToCreatePartialReduction(Instruction *Reduction,
       isa<VPPartialReductionRecipe>(BinOpRecipe))
     std::swap(BinOp, Accumulator);
 
-  VPValue *Mask = getBlockInMask(Reduction->getParent());
-  if (Mask) {
+  if (CM.blockNeedsPredicationForAnyReason(Reduction->getParent())) {
+    VPValue *Mask = getBlockInMask(Reduction->getParent());
     VPValue *Zero =
         Plan.getOrAddLiveIn(ConstantInt::get(Reduction->getType(), 0));
     BinOp = Builder.createSelect(Mask, BinOp, Zero, Reduction->getDebugLoc());
diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 1f7100093d7015..a1ff684b2b8017 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -2448,8 +2448,7 @@ class VPReductionPHIRecipe : public VPHeaderPHIRecipe,
 /// A recipe for forming partial reductions. In the loop, an accumulator and
 /// vector operand are added together and passed to the next iteration as the
 /// next accumulator. After the loop body, the accumulator is reduced to a
-/// scalar value. If the mask operand is not nullptr then it is applied to the
-/// vector operand on each iteration.
+/// scalar value.
 class VPPartialReductionRecipe : public VPSingleDefRecipe {
   unsigned Opcode;
 



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