[llvm] [LV] Simplify the reduction initial value (PR #198451)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/lib/Transforms/Vectorize/LoopVectorize.cpp llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp llvm/lib/Transforms/Vectorize/VPlanTransforms.h --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
index 4e0589155..59278f437 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
@@ -7080,9 +7080,10 @@ static CallWideningDecision decideCallWidening(VPInstruction &VPI,
 void VPlanTransforms::simplifyReductionInitValue(VPlan &Plan,
                                                  VPCostContext &Ctx,
                                                  VFRange &Range) {
-  // Sub is handled specially in preparePlanForEpilogueVectorLoop, so we skip it here.
+  // Sub is handled specially in preparePlanForEpilogueVectorLoop, so we skip it
+  // here.
   if (Ctx.TTI.preferEpilogueVectorization(ElementCount::getFixed(1)))
-     return;
+    return;
 
   VPRegionBlock *LoopRegion = Plan.getVectorLoopRegion();
   for (VPRecipeBase &R : LoopRegion->getEntryBasicBlock()->phis()) {

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https://github.com/llvm/llvm-project/pull/198451