[llvm] [VPlan] Introduce ExplicitVectorLengthMask recipe for EVL vectorization. (PR #95368)

Mel Chen via llvm-commits llvm-commits at lists.llvm.org
Thu Jun 13 01:15:27 PDT 2024


https://github.com/Mel-Chen created https://github.com/llvm/llvm-project/pull/95368

Unlike tail folding with mask, when folding with explicit vector length (EVL), the EVL in the second-to-last iteration may be smaller than the maximum vector length (VF * UF). This causes the original header mask to lose its correctness.
This patch introduces the ExplicitVectorLengthMask recipe to replace the original header mask. 

TODO: Convert all users of ExplicitVectorLengthMask to EVL series recipes so that ExplicitVectorLengthMask can be removed.


>From 98da97b6cdb267262c4de1180fe6fbed88f0287d Mon Sep 17 00:00:00 2001
From: Mel Chen <mel.chen at sifive.com>
Date: Thu, 13 Jun 2024 00:39:50 -0700
Subject: [PATCH] [VPlan] Introduce ExplicitVectorLengthMask recipe for EVL
 vectorization.

---
 llvm/lib/Transforms/Vectorize/VPlan.h         |   1 +
 .../lib/Transforms/Vectorize/VPlanRecipes.cpp |  13 ++
 .../Transforms/Vectorize/VPlanTransforms.cpp  |  58 ++++---
 ...ze-force-tail-with-evl-masked-loadstore.ll |  65 ++++----
 ...-force-tail-with-evl-reverse-load-store.ll | 150 +++++++++---------
 5 files changed, 155 insertions(+), 132 deletions(-)

diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 5bb88e4a57dc3..eba54e30da60f 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -1182,6 +1182,7 @@ class VPInstruction : public VPRecipeWithIRFlags {
     SLPStore,
     ActiveLaneMask,
     ExplicitVectorLength,
+    ExplicitVectorLengthMask,
     CalculateTripCountMinusVF,
     // Increment the canonical IV separately for each unrolled part.
     CanonicalIVIncrementForPart,
diff --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
index 7a482455473e4..8e394e3cc8bb4 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -137,6 +137,7 @@ bool VPRecipeBase::mayHaveSideEffects() const {
     case VPInstruction::Not:
     case VPInstruction::CalculateTripCountMinusVF:
     case VPInstruction::CanonicalIVIncrementForPart:
+    case VPInstruction::ExplicitVectorLengthMask:
     case VPInstruction::ExtractFromEnd:
     case VPInstruction::FirstOrderRecurrenceSplice:
     case VPInstruction::LogicalAnd:
@@ -426,6 +427,14 @@ Value *VPInstruction::generatePerPart(VPTransformState &State, unsigned Part) {
     Value *EVL = GetEVL(State, AVL);
     return EVL;
   }
+  case VPInstruction::ExplicitVectorLengthMask: {
+    assert(Part == 0 && "No unrolling expected for predicated vectorization.");
+    // Compute step < splat(evl)
+    Value *EVL = State.get(getOperand(0), VPIteration(0, 0));
+    Value *SplatEVL = Builder.CreateVectorSplat(State.VF, EVL);
+    Value *Step = Builder.CreateStepVector(SplatEVL->getType());
+    return Builder.CreateICmpULT(Step, SplatEVL, "evl.mask");
+  }
   case VPInstruction::CanonicalIVIncrementForPart: {
     auto *IV = State.get(getOperand(0), VPIteration(0, 0));
     if (Part == 0)
@@ -672,6 +681,7 @@ bool VPInstruction::onlyFirstLaneUsed(const VPValue *Op) const {
     return vputils::onlyFirstLaneUsed(this);
   case VPInstruction::ActiveLaneMask:
   case VPInstruction::ExplicitVectorLength:
+  case VPInstruction::ExplicitVectorLengthMask:
   case VPInstruction::CalculateTripCountMinusVF:
   case VPInstruction::CanonicalIVIncrementForPart:
   case VPInstruction::BranchOnCount:
@@ -730,6 +740,9 @@ void VPInstruction::print(raw_ostream &O, const Twine &Indent,
   case VPInstruction::ExplicitVectorLength:
     O << "EXPLICIT-VECTOR-LENGTH";
     break;
+  case VPInstruction::ExplicitVectorLengthMask:
+    O << "EXPLICIT-VECTOR-LENGTH-MASK";
+    break;
   case VPInstruction::FirstOrderRecurrenceSplice:
     O << "first-order splice";
     break;
diff --git a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
index 8ec67eb2f54bd..d8c34013f8b3f 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
@@ -1426,6 +1426,23 @@ bool VPlanTransforms::tryAddExplicitVectorLength(VPlan &Plan) {
                                   {EVLPhi, Plan.getTripCount()});
   VPEVL->insertBefore(*Header, Header->getFirstNonPhi());
 
+  // Replace header mask pattern (ICmp::ule widen-canonical-IV, BTC) with a
+  // (ICmp::ult step-vector, EVL).
+  // TODO: Replace all users of the ExplicitVectorLengthMask recipe with
+  // EVL-series recipes wherever possible to ensure the final vplan does not use
+  // the mask. The ExplicitVectorLengthMask recipe is a temporary appoarch to
+  // handle situations requiring a header mask, such as out-loop (unordered)
+  // reductions. It is necessary to generate a mask different from the original
+  // header mask because the explict vector length of the second-to-last
+  // iteration may be smaller than VF*UF.
+  auto *EVLMask =
+      new VPInstruction(VPInstruction::ExplicitVectorLengthMask, {VPEVL});
+  EVLMask->insertAfter(VPEVL);
+  for (VPValue *HeaderMask : collectAllHeaderMasks(Plan)) {
+    HeaderMask->replaceAllUsesWith(EVLMask);
+    recursivelyDeleteDeadRecipes(HeaderMask);
+  }
+
   auto *CanonicalIVIncrement =
       cast<VPInstruction>(CanonicalIVPHI->getBackedgeValue());
   VPSingleDefRecipe *OpVPEVL = VPEVL;
@@ -1444,29 +1461,28 @@ bool VPlanTransforms::tryAddExplicitVectorLength(VPlan &Plan) {
   NextEVLIV->insertBefore(CanonicalIVIncrement);
   EVLPhi->addOperand(NextEVLIV);
 
-  for (VPValue *HeaderMask : collectAllHeaderMasks(Plan)) {
-    for (VPUser *U : collectUsersRecursively(HeaderMask)) {
-      auto *MemR = dyn_cast<VPWidenMemoryRecipe>(U);
-      if (!MemR)
-        continue;
-      VPValue *OrigMask = MemR->getMask();
-      assert(OrigMask && "Unmasked widen memory recipe when folding tail");
-      VPValue *NewMask = HeaderMask == OrigMask ? nullptr : OrigMask;
-      if (auto *L = dyn_cast<VPWidenLoadRecipe>(MemR)) {
-        auto *N = new VPWidenLoadEVLRecipe(L, VPEVL, NewMask);
-        N->insertBefore(L);
-        L->replaceAllUsesWith(N);
-        L->eraseFromParent();
-      } else if (auto *S = dyn_cast<VPWidenStoreRecipe>(MemR)) {
-        auto *N = new VPWidenStoreEVLRecipe(S, VPEVL, NewMask);
-        N->insertBefore(S);
-        S->eraseFromParent();
-      } else {
-        llvm_unreachable("unsupported recipe");
-      }
+  for (VPUser *U : collectUsersRecursively(EVLMask)) {
+    auto *MemR = dyn_cast<VPWidenMemoryRecipe>(U);
+    if (!MemR)
+      continue;
+    VPValue *OrigMask = MemR->getMask();
+    assert(OrigMask && "Unmasked widen memory recipe when folding tail");
+    VPValue *NewMask = EVLMask == OrigMask ? nullptr : OrigMask;
+    if (auto *L = dyn_cast<VPWidenLoadRecipe>(MemR)) {
+      auto *N = new VPWidenLoadEVLRecipe(L, VPEVL, NewMask);
+      N->insertBefore(L);
+      L->replaceAllUsesWith(N);
+      L->eraseFromParent();
+    } else if (auto *S = dyn_cast<VPWidenStoreRecipe>(MemR)) {
+      auto *N = new VPWidenStoreEVLRecipe(S, VPEVL, NewMask);
+      N->insertBefore(S);
+      S->eraseFromParent();
+    } else {
+      llvm_unreachable("unsupported recipe");
     }
-    recursivelyDeleteDeadRecipes(HeaderMask);
   }
+  recursivelyDeleteDeadRecipes(EVLMask);
+
   // Replace all uses of VPCanonicalIVPHIRecipe by
   // VPEVLBasedIVPHIRecipe except for the canonical IV increment.
   CanonicalIVPHI->replaceAllUsesWith(EVLPhi);
diff --git a/llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-masked-loadstore.ll b/llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-masked-loadstore.ll
index 9d02ce715139e..3aecfc0d613e6 100644
--- a/llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-masked-loadstore.ll
+++ b/llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-masked-loadstore.ll
@@ -20,43 +20,38 @@ define void @masked_loadstore(ptr noalias %a, ptr noalias %b, i64 %n) {
 ; IF-EVL:       vector.ph:
 ; IF-EVL-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
 ; IF-EVL-NEXT:    [[TMP5:%.*]] = mul i64 [[TMP4]], 4
-; IF-EVL-NEXT:    [[TMP8:%.*]] = sub i64 [[TMP5]], 1
-; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP8]]
+; IF-EVL-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
+; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP6]]
 ; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
 ; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
-; IF-EVL-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
-; IF-EVL-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
-; IF-EVL-NEXT:    [[TMP10:%.*]] = mul i64 [[TMP9]], 4
-; IF-EVL-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <vscale x 4 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
-; IF-EVL-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <vscale x 4 x i64> [[BROADCAST_SPLATINSERT1]], <vscale x 4 x i64> poison, <vscale x 4 x i32> zeroinitializer
+; IF-EVL-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
+; IF-EVL-NEXT:    [[TMP8:%.*]] = mul i64 [[TMP7]], 4
 ; IF-EVL-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; IF-EVL:       vector.body:
 ; IF-EVL-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; IF-EVL-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ]
-; IF-EVL-NEXT:    [[TMP11:%.*]] = sub i64 [[N]], [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[TMP12:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP11]], i32 4, i1 true)
-; IF-EVL-NEXT:    [[TMP13:%.*]] = add i64 [[EVL_BASED_IV]], 0
-; IF-EVL-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 4 x i64> poison, i64 [[EVL_BASED_IV]], i64 0
-; IF-EVL-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 4 x i64> poison, <vscale x 4 x i32> zeroinitializer
-; IF-EVL-NEXT:    [[TMP14:%.*]] = call <vscale x 4 x i64> @llvm.experimental.stepvector.nxv4i64()
-; IF-EVL-NEXT:    [[TMP15:%.*]] = add <vscale x 4 x i64> zeroinitializer, [[TMP14]]
-; IF-EVL-NEXT:    [[VEC_IV:%.*]] = add <vscale x 4 x i64> [[BROADCAST_SPLAT]], [[TMP15]]
-; IF-EVL-NEXT:    [[TMP16:%.*]] = icmp ule <vscale x 4 x i64> [[VEC_IV]], [[BROADCAST_SPLAT2]]
-; IF-EVL-NEXT:    [[TMP17:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[TMP13]]
-; IF-EVL-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i32, ptr [[TMP17]], i32 0
-; IF-EVL-NEXT:    [[VP_OP_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP18]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP12]])
-; IF-EVL-NEXT:    [[TMP19:%.*]] = icmp ne <vscale x 4 x i32> [[VP_OP_LOAD]], zeroinitializer
-; IF-EVL-NEXT:    [[TMP20:%.*]] = select <vscale x 4 x i1> [[TMP16]], <vscale x 4 x i1> [[TMP19]], <vscale x 4 x i1> zeroinitializer
-; IF-EVL-NEXT:    [[TMP21:%.*]] = getelementptr i32, ptr [[A:%.*]], i64 [[TMP13]]
-; IF-EVL-NEXT:    [[TMP22:%.*]] = getelementptr i32, ptr [[TMP21]], i32 0
-; IF-EVL-NEXT:    [[VP_OP_LOAD3:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP22]], <vscale x 4 x i1> [[TMP20]], i32 [[TMP12]])
-; IF-EVL-NEXT:    [[TMP23:%.*]] = add <vscale x 4 x i32> [[VP_OP_LOAD]], [[VP_OP_LOAD3]]
-; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[TMP23]], ptr align 4 [[TMP22]], <vscale x 4 x i1> [[TMP20]], i32 [[TMP12]])
-; IF-EVL-NEXT:    [[TMP24:%.*]] = zext i32 [[TMP12]] to i64
-; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP24]], [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP10]]
-; IF-EVL-NEXT:    [[TMP25:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; IF-EVL-NEXT:    br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; IF-EVL-NEXT:    [[TMP9:%.*]] = sub i64 [[N]], [[EVL_BASED_IV]]
+; IF-EVL-NEXT:    [[TMP10:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP9]], i32 4, i1 true)
+; IF-EVL-NEXT:    [[DOTSPLATINSERT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 [[TMP10]], i64 0
+; IF-EVL-NEXT:    [[DOTSPLAT:%.*]] = shufflevector <vscale x 4 x i32> [[DOTSPLATINSERT]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
+; IF-EVL-NEXT:    [[TMP11:%.*]] = call <vscale x 4 x i32> @llvm.experimental.stepvector.nxv4i32()
+; IF-EVL-NEXT:    [[EVL_MASK:%.*]] = icmp ult <vscale x 4 x i32> [[TMP11]], [[DOTSPLAT]]
+; IF-EVL-NEXT:    [[TMP12:%.*]] = add i64 [[EVL_BASED_IV]], 0
+; IF-EVL-NEXT:    [[TMP13:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[TMP12]]
+; IF-EVL-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i32, ptr [[TMP13]], i32 0
+; IF-EVL-NEXT:    [[VP_OP_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP14]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP10]])
+; IF-EVL-NEXT:    [[TMP15:%.*]] = icmp ne <vscale x 4 x i32> [[VP_OP_LOAD]], zeroinitializer
+; IF-EVL-NEXT:    [[TMP16:%.*]] = select <vscale x 4 x i1> [[EVL_MASK]], <vscale x 4 x i1> [[TMP15]], <vscale x 4 x i1> zeroinitializer
+; IF-EVL-NEXT:    [[TMP17:%.*]] = getelementptr i32, ptr [[A:%.*]], i64 [[TMP12]]
+; IF-EVL-NEXT:    [[TMP18:%.*]] = getelementptr i32, ptr [[TMP17]], i32 0
+; IF-EVL-NEXT:    [[VP_OP_LOAD1:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP18]], <vscale x 4 x i1> [[TMP16]], i32 [[TMP10]])
+; IF-EVL-NEXT:    [[TMP19:%.*]] = add <vscale x 4 x i32> [[VP_OP_LOAD]], [[VP_OP_LOAD1]]
+; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[TMP19]], ptr align 4 [[TMP18]], <vscale x 4 x i1> [[TMP16]], i32 [[TMP10]])
+; IF-EVL-NEXT:    [[TMP20:%.*]] = zext i32 [[TMP10]] to i64
+; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP20]], [[EVL_BASED_IV]]
+; IF-EVL-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP8]]
+; IF-EVL-NEXT:    [[TMP21:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; IF-EVL-NEXT:    br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; IF-EVL:       middle.block:
 ; IF-EVL-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; IF-EVL:       scalar.ph:
@@ -65,13 +60,13 @@ define void @masked_loadstore(ptr noalias %a, ptr noalias %b, i64 %n) {
 ; IF-EVL:       for.body:
 ; IF-EVL-NEXT:    [[I_011:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_INC:%.*]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
 ; IF-EVL-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[I_011]]
-; IF-EVL-NEXT:    [[TMP26:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
-; IF-EVL-NEXT:    [[CMP1:%.*]] = icmp ne i32 [[TMP26]], 0
+; IF-EVL-NEXT:    [[TMP22:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
+; IF-EVL-NEXT:    [[CMP1:%.*]] = icmp ne i32 [[TMP22]], 0
 ; IF-EVL-NEXT:    br i1 [[CMP1]], label [[IF_THEN:%.*]], label [[FOR_INC]]
 ; IF-EVL:       if.then:
 ; IF-EVL-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[I_011]]
-; IF-EVL-NEXT:    [[TMP27:%.*]] = load i32, ptr [[ARRAYIDX3]], align 4
-; IF-EVL-NEXT:    [[ADD:%.*]] = add i32 [[TMP26]], [[TMP27]]
+; IF-EVL-NEXT:    [[TMP23:%.*]] = load i32, ptr [[ARRAYIDX3]], align 4
+; IF-EVL-NEXT:    [[ADD:%.*]] = add i32 [[TMP22]], [[TMP23]]
 ; IF-EVL-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX3]], align 4
 ; IF-EVL-NEXT:    br label [[FOR_INC]]
 ; IF-EVL:       for.inc:
diff --git a/llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-reverse-load-store.ll b/llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-reverse-load-store.ll
index d62f70c06a5fb..31bca31efe1e3 100644
--- a/llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-reverse-load-store.ll
+++ b/llvm/test/Transforms/LoopVectorize/RISCV/vectorize-force-tail-with-evl-reverse-load-store.ll
@@ -16,46 +16,46 @@ define void @reverse_load_store(i64 %startval, ptr noalias %ptr, ptr noalias %pt
 ; IF-EVL:       vector.ph:
 ; IF-EVL-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
 ; IF-EVL-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 4
-; IF-EVL-NEXT:    [[TMP4:%.*]] = sub i64 [[TMP1]], 1
-; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 1024, [[TMP4]]
+; IF-EVL-NEXT:    [[TMP2:%.*]] = sub i64 [[TMP1]], 1
+; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 1024, [[TMP2]]
 ; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
 ; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
 ; IF-EVL-NEXT:    [[IND_END:%.*]] = sub i64 [[STARTVAL:%.*]], [[N_VEC]]
 ; IF-EVL-NEXT:    [[IND_END1:%.*]] = trunc i64 [[N_VEC]] to i32
-; IF-EVL-NEXT:    [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
-; IF-EVL-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP5]], 4
+; IF-EVL-NEXT:    [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
+; IF-EVL-NEXT:    [[TMP4:%.*]] = mul i64 [[TMP3]], 4
 ; IF-EVL-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; IF-EVL:       vector.body:
 ; IF-EVL-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; IF-EVL-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ]
-; IF-EVL-NEXT:    [[TMP7:%.*]] = sub i64 1024, [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[TMP8:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP7]], i32 4, i1 true)
+; IF-EVL-NEXT:    [[TMP5:%.*]] = sub i64 1024, [[EVL_BASED_IV]]
+; IF-EVL-NEXT:    [[TMP6:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP5]], i32 4, i1 true)
 ; IF-EVL-NEXT:    [[OFFSET_IDX:%.*]] = sub i64 [[STARTVAL]], [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[TMP9:%.*]] = add i64 [[OFFSET_IDX]], 0
-; IF-EVL-NEXT:    [[TMP10:%.*]] = add i64 [[TMP9]], -1
-; IF-EVL-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i32, ptr [[PTR:%.*]], i64 [[TMP10]]
-; IF-EVL-NEXT:    [[TMP12:%.*]] = call i64 @llvm.vscale.i64()
-; IF-EVL-NEXT:    [[TMP13:%.*]] = mul i64 [[TMP12]], 4
-; IF-EVL-NEXT:    [[TMP14:%.*]] = mul i64 0, [[TMP13]]
-; IF-EVL-NEXT:    [[TMP15:%.*]] = sub i64 1, [[TMP13]]
-; IF-EVL-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i32, ptr [[TMP11]], i64 [[TMP14]]
-; IF-EVL-NEXT:    [[TMP17:%.*]] = getelementptr inbounds i32, ptr [[TMP16]], i64 [[TMP15]]
-; IF-EVL-NEXT:    [[VP_OP_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP17]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    [[VP_REVERSE:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[VP_OP_LOAD]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i32, ptr [[PTR2:%.*]], i64 [[TMP10]]
-; IF-EVL-NEXT:    [[TMP19:%.*]] = call i64 @llvm.vscale.i64()
-; IF-EVL-NEXT:    [[TMP20:%.*]] = mul i64 [[TMP19]], 4
-; IF-EVL-NEXT:    [[TMP21:%.*]] = mul i64 0, [[TMP20]]
-; IF-EVL-NEXT:    [[TMP22:%.*]] = sub i64 1, [[TMP20]]
-; IF-EVL-NEXT:    [[TMP23:%.*]] = getelementptr inbounds i32, ptr [[TMP18]], i64 [[TMP21]]
-; IF-EVL-NEXT:    [[TMP24:%.*]] = getelementptr inbounds i32, ptr [[TMP23]], i64 [[TMP22]]
-; IF-EVL-NEXT:    [[VP_REVERSE3:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[VP_REVERSE]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_REVERSE3]], ptr align 4 [[TMP24]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    [[TMP25:%.*]] = zext i32 [[TMP8]] to i64
-; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP25]], [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP6]]
-; IF-EVL-NEXT:    [[TMP26:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; IF-EVL-NEXT:    br i1 [[TMP26]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; IF-EVL-NEXT:    [[TMP7:%.*]] = add i64 [[OFFSET_IDX]], 0
+; IF-EVL-NEXT:    [[TMP8:%.*]] = add i64 [[TMP7]], -1
+; IF-EVL-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[PTR:%.*]], i64 [[TMP8]]
+; IF-EVL-NEXT:    [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
+; IF-EVL-NEXT:    [[TMP11:%.*]] = mul i64 [[TMP10]], 4
+; IF-EVL-NEXT:    [[TMP12:%.*]] = mul i64 0, [[TMP11]]
+; IF-EVL-NEXT:    [[TMP13:%.*]] = sub i64 1, [[TMP11]]
+; IF-EVL-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i32, ptr [[TMP9]], i64 [[TMP12]]
+; IF-EVL-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i32, ptr [[TMP14]], i64 [[TMP13]]
+; IF-EVL-NEXT:    [[VP_OP_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP15]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    [[VP_REVERSE:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[VP_OP_LOAD]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i32, ptr [[PTR2:%.*]], i64 [[TMP8]]
+; IF-EVL-NEXT:    [[TMP17:%.*]] = call i64 @llvm.vscale.i64()
+; IF-EVL-NEXT:    [[TMP18:%.*]] = mul i64 [[TMP17]], 4
+; IF-EVL-NEXT:    [[TMP19:%.*]] = mul i64 0, [[TMP18]]
+; IF-EVL-NEXT:    [[TMP20:%.*]] = sub i64 1, [[TMP18]]
+; IF-EVL-NEXT:    [[TMP21:%.*]] = getelementptr inbounds i32, ptr [[TMP16]], i64 [[TMP19]]
+; IF-EVL-NEXT:    [[TMP22:%.*]] = getelementptr inbounds i32, ptr [[TMP21]], i64 [[TMP20]]
+; IF-EVL-NEXT:    [[VP_REVERSE3:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[VP_REVERSE]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_REVERSE3]], ptr align 4 [[TMP22]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    [[TMP23:%.*]] = zext i32 [[TMP6]] to i64
+; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP23]], [[EVL_BASED_IV]]
+; IF-EVL-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
+; IF-EVL-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; IF-EVL-NEXT:    br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; IF-EVL:       middle.block:
 ; IF-EVL-NEXT:    br i1 true, label [[LOOPEND:%.*]], label [[SCALAR_PH]]
 ; IF-EVL:       scalar.ph:
@@ -119,61 +119,59 @@ define void @reverse_load_store_masked(i64 %startval, ptr noalias %ptr, ptr noal
 ; IF-EVL:       vector.ph:
 ; IF-EVL-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
 ; IF-EVL-NEXT:    [[TMP1:%.*]] = mul i64 [[TMP0]], 4
-; IF-EVL-NEXT:    [[TMP4:%.*]] = sub i64 [[TMP1]], 1
-; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 1024, [[TMP4]]
+; IF-EVL-NEXT:    [[TMP2:%.*]] = sub i64 [[TMP1]], 1
+; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 1024, [[TMP2]]
 ; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
 ; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
 ; IF-EVL-NEXT:    [[IND_END:%.*]] = sub i64 [[STARTVAL:%.*]], [[N_VEC]]
 ; IF-EVL-NEXT:    [[IND_END1:%.*]] = trunc i64 [[N_VEC]] to i32
-; IF-EVL-NEXT:    [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
-; IF-EVL-NEXT:    [[TMP6:%.*]] = mul i64 [[TMP5]], 4
+; IF-EVL-NEXT:    [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
+; IF-EVL-NEXT:    [[TMP4:%.*]] = mul i64 [[TMP3]], 4
 ; IF-EVL-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; IF-EVL:       vector.body:
 ; IF-EVL-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; IF-EVL-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ]
-; IF-EVL-NEXT:    [[TMP7:%.*]] = sub i64 1024, [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[TMP8:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP7]], i32 4, i1 true)
+; IF-EVL-NEXT:    [[TMP5:%.*]] = sub i64 1024, [[EVL_BASED_IV]]
+; IF-EVL-NEXT:    [[TMP6:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP5]], i32 4, i1 true)
+; IF-EVL-NEXT:    [[DOTSPLATINSERT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 [[TMP6]], i64 0
+; IF-EVL-NEXT:    [[DOTSPLAT:%.*]] = shufflevector <vscale x 4 x i32> [[DOTSPLATINSERT]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
+; IF-EVL-NEXT:    [[TMP7:%.*]] = call <vscale x 4 x i32> @llvm.experimental.stepvector.nxv4i32()
+; IF-EVL-NEXT:    [[EVL_MASK:%.*]] = icmp ult <vscale x 4 x i32> [[TMP7]], [[DOTSPLAT]]
 ; IF-EVL-NEXT:    [[OFFSET_IDX:%.*]] = sub i64 [[STARTVAL]], [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[TMP9:%.*]] = add i64 [[OFFSET_IDX]], 0
+; IF-EVL-NEXT:    [[TMP8:%.*]] = add i64 [[OFFSET_IDX]], 0
 ; IF-EVL-NEXT:    [[OFFSET_IDX3:%.*]] = trunc i64 [[EVL_BASED_IV]] to i32
-; IF-EVL-NEXT:    [[TMP10:%.*]] = add i32 [[OFFSET_IDX3]], 0
-; IF-EVL-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 4 x i64> poison, i64 [[EVL_BASED_IV]], i64 0
-; IF-EVL-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 4 x i64> poison, <vscale x 4 x i32> zeroinitializer
-; IF-EVL-NEXT:    [[TMP11:%.*]] = call <vscale x 4 x i64> @llvm.experimental.stepvector.nxv4i64()
-; IF-EVL-NEXT:    [[TMP12:%.*]] = add <vscale x 4 x i64> zeroinitializer, [[TMP11]]
-; IF-EVL-NEXT:    [[VEC_IV:%.*]] = add <vscale x 4 x i64> [[BROADCAST_SPLAT]], [[TMP12]]
-; IF-EVL-NEXT:    [[TMP13:%.*]] = icmp ule <vscale x 4 x i64> [[VEC_IV]], shufflevector (<vscale x 4 x i64> insertelement (<vscale x 4 x i64> poison, i64 1023, i64 0), <vscale x 4 x i64> poison, <vscale x 4 x i32> zeroinitializer)
-; IF-EVL-NEXT:    [[TMP14:%.*]] = add i64 [[TMP9]], -1
-; IF-EVL-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i32, ptr [[PTR:%.*]], i32 [[TMP10]]
-; IF-EVL-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i32, ptr [[TMP15]], i32 0
-; IF-EVL-NEXT:    [[VP_OP_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP16]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    [[TMP17:%.*]] = icmp slt <vscale x 4 x i32> [[VP_OP_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 100, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
-; IF-EVL-NEXT:    [[TMP18:%.*]] = select <vscale x 4 x i1> [[TMP13]], <vscale x 4 x i1> [[TMP17]], <vscale x 4 x i1> zeroinitializer
-; IF-EVL-NEXT:    [[TMP19:%.*]] = getelementptr i32, ptr [[PTR1:%.*]], i64 [[TMP14]]
-; IF-EVL-NEXT:    [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
-; IF-EVL-NEXT:    [[TMP21:%.*]] = mul i64 [[TMP20]], 4
-; IF-EVL-NEXT:    [[TMP22:%.*]] = mul i64 0, [[TMP21]]
-; IF-EVL-NEXT:    [[TMP23:%.*]] = sub i64 1, [[TMP21]]
-; IF-EVL-NEXT:    [[TMP24:%.*]] = getelementptr i32, ptr [[TMP19]], i64 [[TMP22]]
-; IF-EVL-NEXT:    [[TMP25:%.*]] = getelementptr i32, ptr [[TMP24]], i64 [[TMP23]]
-; IF-EVL-NEXT:    [[VP_REVERSE_MASK:%.*]] = call <vscale x 4 x i1> @llvm.experimental.vp.reverse.nxv4i1(<vscale x 4 x i1> [[TMP18]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    [[VP_OP_LOAD4:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP25]], <vscale x 4 x i1> [[VP_REVERSE_MASK]], i32 [[TMP8]])
-; IF-EVL-NEXT:    [[VP_REVERSE:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[VP_OP_LOAD4]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    [[TMP26:%.*]] = getelementptr i32, ptr [[PTR2:%.*]], i64 [[TMP14]]
-; IF-EVL-NEXT:    [[TMP27:%.*]] = call i64 @llvm.vscale.i64()
-; IF-EVL-NEXT:    [[TMP28:%.*]] = mul i64 [[TMP27]], 4
-; IF-EVL-NEXT:    [[TMP29:%.*]] = mul i64 0, [[TMP28]]
-; IF-EVL-NEXT:    [[TMP30:%.*]] = sub i64 1, [[TMP28]]
-; IF-EVL-NEXT:    [[TMP31:%.*]] = getelementptr i32, ptr [[TMP26]], i64 [[TMP29]]
-; IF-EVL-NEXT:    [[TMP32:%.*]] = getelementptr i32, ptr [[TMP31]], i64 [[TMP30]]
-; IF-EVL-NEXT:    [[VP_REVERSE5:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[VP_REVERSE]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    [[VP_REVERSE_MASK6:%.*]] = call <vscale x 4 x i1> @llvm.experimental.vp.reverse.nxv4i1(<vscale x 4 x i1> [[TMP18]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP8]])
-; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_REVERSE5]], ptr align 4 [[TMP32]], <vscale x 4 x i1> [[VP_REVERSE_MASK6]], i32 [[TMP8]])
-; IF-EVL-NEXT:    [[TMP33:%.*]] = zext i32 [[TMP8]] to i64
-; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP33]], [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP6]]
-; IF-EVL-NEXT:    [[TMP34:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; IF-EVL-NEXT:    br i1 [[TMP34]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; IF-EVL-NEXT:    [[TMP9:%.*]] = add i32 [[OFFSET_IDX3]], 0
+; IF-EVL-NEXT:    [[TMP10:%.*]] = add i64 [[TMP8]], -1
+; IF-EVL-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i32, ptr [[PTR:%.*]], i32 [[TMP9]]
+; IF-EVL-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i32, ptr [[TMP11]], i32 0
+; IF-EVL-NEXT:    [[VP_OP_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP12]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    [[TMP13:%.*]] = icmp slt <vscale x 4 x i32> [[VP_OP_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 100, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
+; IF-EVL-NEXT:    [[TMP14:%.*]] = select <vscale x 4 x i1> [[EVL_MASK]], <vscale x 4 x i1> [[TMP13]], <vscale x 4 x i1> zeroinitializer
+; IF-EVL-NEXT:    [[TMP15:%.*]] = getelementptr i32, ptr [[PTR1:%.*]], i64 [[TMP10]]
+; IF-EVL-NEXT:    [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
+; IF-EVL-NEXT:    [[TMP17:%.*]] = mul i64 [[TMP16]], 4
+; IF-EVL-NEXT:    [[TMP18:%.*]] = mul i64 0, [[TMP17]]
+; IF-EVL-NEXT:    [[TMP19:%.*]] = sub i64 1, [[TMP17]]
+; IF-EVL-NEXT:    [[TMP20:%.*]] = getelementptr i32, ptr [[TMP15]], i64 [[TMP18]]
+; IF-EVL-NEXT:    [[TMP21:%.*]] = getelementptr i32, ptr [[TMP20]], i64 [[TMP19]]
+; IF-EVL-NEXT:    [[VP_REVERSE_MASK:%.*]] = call <vscale x 4 x i1> @llvm.experimental.vp.reverse.nxv4i1(<vscale x 4 x i1> [[TMP14]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    [[VP_OP_LOAD4:%.*]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP21]], <vscale x 4 x i1> [[VP_REVERSE_MASK]], i32 [[TMP6]])
+; IF-EVL-NEXT:    [[VP_REVERSE:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[VP_OP_LOAD4]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    [[TMP22:%.*]] = getelementptr i32, ptr [[PTR2:%.*]], i64 [[TMP10]]
+; IF-EVL-NEXT:    [[TMP23:%.*]] = call i64 @llvm.vscale.i64()
+; IF-EVL-NEXT:    [[TMP24:%.*]] = mul i64 [[TMP23]], 4
+; IF-EVL-NEXT:    [[TMP25:%.*]] = mul i64 0, [[TMP24]]
+; IF-EVL-NEXT:    [[TMP26:%.*]] = sub i64 1, [[TMP24]]
+; IF-EVL-NEXT:    [[TMP27:%.*]] = getelementptr i32, ptr [[TMP22]], i64 [[TMP25]]
+; IF-EVL-NEXT:    [[TMP28:%.*]] = getelementptr i32, ptr [[TMP27]], i64 [[TMP26]]
+; IF-EVL-NEXT:    [[VP_REVERSE5:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[VP_REVERSE]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    [[VP_REVERSE_MASK6:%.*]] = call <vscale x 4 x i1> @llvm.experimental.vp.reverse.nxv4i1(<vscale x 4 x i1> [[TMP14]], <vscale x 4 x i1> shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer), i32 [[TMP6]])
+; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_REVERSE5]], ptr align 4 [[TMP28]], <vscale x 4 x i1> [[VP_REVERSE_MASK6]], i32 [[TMP6]])
+; IF-EVL-NEXT:    [[TMP29:%.*]] = zext i32 [[TMP6]] to i64
+; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP29]], [[EVL_BASED_IV]]
+; IF-EVL-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
+; IF-EVL-NEXT:    [[TMP30:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; IF-EVL-NEXT:    br i1 [[TMP30]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
 ; IF-EVL:       middle.block:
 ; IF-EVL-NEXT:    br i1 true, label [[LOOPEND:%.*]], label [[SCALAR_PH]]
 ; IF-EVL:       scalar.ph:



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