[llvm] [LoopReduceMotion] Improve loop by extract reduction instruction (PR #179215)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- llvm/include/llvm/Transforms/Vectorize/LoopReduceMotion.h llvm/lib/Transforms/Vectorize/LoopReduceMotion.cpp llvm/lib/Passes/PassBuilder.cpp llvm/lib/Passes/PassBuilderPipelines.cpp --diff_from_common_commit
``````````

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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/LoopReduceMotion.cpp b/llvm/lib/Transforms/Vectorize/LoopReduceMotion.cpp
index 7a80e3e5a..3d64b7a5b 100644
--- a/llvm/lib/Transforms/Vectorize/LoopReduceMotion.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopReduceMotion.cpp
@@ -65,7 +65,8 @@ bool LoopReduceMotionPass::compareCost(LoopStandardAnalysisResults &AR, Loop &L,
 
   uint64_t FixedTripCount = SE->getSmallConstantTripCount(&L);
   if (FixedTripCount > 0) {
-    InstructionCost beforeCost = FixedTripCount * (ReduceAddCost + ScalarAddCost);
+    InstructionCost beforeCost =
+        FixedTripCount * (ReduceAddCost + ScalarAddCost);
     InstructionCost afterCost = FixedTripCount * VectorAddCost + ReduceAddCost;
 
     return afterCost < beforeCost;

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https://github.com/llvm/llvm-project/pull/179215