[VPlan] Use IsaPred to improve code (NFC) (#156037)

Author: artagnon

llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp

@@ -2084,12 +2084,10 @@ static VPActiveLaneMaskPHIRecipe *addVPLaneMaskPhiAndUpdateExitBranch(
 /// for the header-mask pattern manually.
 static VPSingleDefRecipe *findHeaderMask(VPlan &Plan) {
   SmallVector<VPValue *> WideCanonicalIVs;
-  auto *FoundWidenCanonicalIVUser =
-      find_if(Plan.getCanonicalIV()->users(),
-              [](VPUser *U) { return isa<VPWidenCanonicalIVRecipe>(U); });
+  auto *FoundWidenCanonicalIVUser = find_if(Plan.getCanonicalIV()->users(),
+                                            IsaPred<VPWidenCanonicalIVRecipe>);
   assert(count_if(Plan.getCanonicalIV()->users(),
-                  [](VPUser *U) { return isa<VPWidenCanonicalIVRecipe>(U); }) <=
-             1 &&
+                  IsaPred<VPWidenCanonicalIVRecipe>) <= 1 &&
          "Must have at most one VPWideCanonicalIVRecipe");
   if (FoundWidenCanonicalIVUser != Plan.getCanonicalIV()->users().end()) {
     auto *WideCanonicalIV =
@@ -2132,9 +2130,8 @@ void VPlanTransforms::addActiveLaneMask(
          "DataAndControlFlowWithoutRuntimeCheck implies "
          "UseActiveLaneMaskForControlFlow");
 
-  auto *FoundWidenCanonicalIVUser =
-      find_if(Plan.getCanonicalIV()->users(),
-              [](VPUser *U) { return isa<VPWidenCanonicalIVRecipe>(U); });
+  auto *FoundWidenCanonicalIVUser = find_if(Plan.getCanonicalIV()->users(),
+                                            IsaPred<VPWidenCanonicalIVRecipe>);
   assert(FoundWidenCanonicalIVUser &&
          "Must have widened canonical IV when tail folding!");
   VPSingleDefRecipe *HeaderMask = findHeaderMask(Plan);