diff --git a/llvm/lib/Transforms/Vectorize/VPlan.cpp b/llvm/lib/Transforms/Vectorize/VPlan.cpp
index 710e953256d80f..cc168a2266ef69 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlan.cpp
@@ -197,9 +197,7 @@ VPBlockBase *VPBlockBase::getEnclosingBlockWithPredecessors() {
 }
 
 void VPBlockBase::deleteCFG(VPBlockBase *Entry) {
-  SmallVector<VPBlockBase *, 8> Blocks(depth_first(Entry));
-
-  for (VPBlockBase *Block : Blocks)
+  for (VPBlockBase *Block : to_vector(depth_first(Entry)))
     delete Block;
 }
 
diff --git a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
index d8fd7cbd65387b..bb9fd47a3e3069 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
@@ -170,9 +170,7 @@ bool VPlanTransforms::sinkScalarOperands(VPlan &Plan) {
       // TODO: add ".cloned" suffix to name of Clone's VPValue.
 
       Clone->insertBefore(SinkCandidate);
-      SmallVector<VPUser *, 4> Users(
-          SinkCandidate->getVPSingleValue()->users());
-      for (auto *U : Users) {
+      for (auto *U : to_vector(SinkCandidate->getVPSingleValue()->users())) {
         auto *UI = cast<VPRecipeBase>(U);
         if (UI->getParent() == SinkTo)
           continue;
@@ -285,8 +283,7 @@ bool VPlanTransforms::mergeReplicateRegionsIntoSuccessors(VPlan &Plan) {
       VPValue *PredInst1 =
           cast<VPPredInstPHIRecipe>(&Phi1ToMove)->getOperand(0);
       VPValue *Phi1ToMoveV = Phi1ToMove.getVPSingleValue();
-      SmallVector<VPUser *> Users(Phi1ToMoveV->users());
-      for (VPUser *U : Users) {
+      for (VPUser *U : to_vector(Phi1ToMoveV->users())) {
         auto *UI = dyn_cast<VPRecipeBase>(U);
         if (!UI || UI->getParent() != Then2)
           continue;
@@ -332,8 +329,7 @@ bool VPlanTransforms::mergeBlocksIntoPredecessors(VPlan &Plan) {
     auto *ParentRegion = cast_or_null<VPRegionBlock>(VPBB->getParent());
     if (ParentRegion && ParentRegion->getExiting() == VPBB)
       ParentRegion->setExiting(PredVPBB);
-    SmallVector<VPBlockBase *> Successors(VPBB->successors());
-    for (auto *Succ : Successors) {
+    for (auto *Succ : to_vector(VPBB->successors())) {
       VPBlockUtils::disconnectBlocks(VPBB, Succ);
       VPBlockUtils::connectBlocks(PredVPBB, Succ);
     }