[llvm] [LV] Improve cost model for some replicating recipes (PR #192056)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/lib/Transforms/Vectorize/VPlan.cpp llvm/lib/Transforms/Vectorize/VPlanHelpers.h llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp --diff_from_common_commit
``````````

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The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
index 7ffc9a227..b6387113d 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -3618,10 +3618,9 @@ InstructionCost VPReplicateRecipe::computeCost(ElementCount VF,
 
     TTI::VectorInstrContext VIC =
         IsLoad ? TTI::VectorInstrContext::Load : TTI::VectorInstrContext::Store;
-    InstructionCost Cost =
-        (ScalarCost * VF.getFixedValue()) +
-        Ctx.getScalarizationOverhead(ResultTy, OpsToScalarize, VF, this, VIC,
-                                     true);
+    InstructionCost Cost = (ScalarCost * VF.getFixedValue()) +
+                           Ctx.getScalarizationOverhead(
+                               ResultTy, OpsToScalarize, VF, this, VIC, true);
 
     const VPRegionBlock *ParentRegion = getRegion();
     if (ParentRegion && ParentRegion->isReplicator()) {

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https://github.com/llvm/llvm-project/pull/192056