[llvm] [VectorCombine] Support simplification to scalar store for multiple insertelt (PR #132820)

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git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Transforms/Vectorize/VectorCombine.cpp --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/VectorCombine.cpp b/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
index a3edd5393..37cf049a8 100644
--- a/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
+++ b/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
@@ -1984,8 +1984,9 @@ static Align computeAlignmentAfterScalarization(Align VectorAlignment,
 ///        vector store <-- insertelement <-- ... <-- insertelement <-- load
 ///
 ///   Steps 3-5. Validate:
-///        reject unprofitable full overwrites; require simple accesses, a common
-///        address/block, no memory write in between, and scalarizable indices.
+///        reject unprofitable full overwrites; require simple accesses, a
+///        common address/block, no memory write in between, and scalarizable
+///        indices.
 bool VectorCombine::foldInsertElementsToStores(Instruction &I) {
   // Step 1: The target must support addressing a vector element with a GEP.
   if (!TTI.allowVectorElementIndexingUsingGEP())

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https://github.com/llvm/llvm-project/pull/132820