[llvm] [SLP]Reduce number of alternate instruction, where possible (PR #128907)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff a88167a60d0b5529b2a5ab185680f25c3c983ec3 57a6b0526cbcd3630fdad3f15a78777ccc8ae6d7 --extensions h,cpp -- llvm/include/llvm/Analysis/TargetTransformInfo.h llvm/include/llvm/Analysis/TargetTransformInfoImpl.h llvm/lib/Analysis/TargetTransformInfo.cpp llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h llvm/lib/Target/X86/X86TargetTransformInfo.h llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
``````````

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index a1edde3f72..3054b36e89 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -8815,8 +8815,8 @@ void BoUpSLP::buildTree_rec(ArrayRef<Value *> VL, unsigned Depth,
         // Build gather node for loads, they will be gathered later.
         TE->CombinedEntriesWithIndices.emplace_back(VectorizableTree.size(),
                                                     Idx == 0 ? 0 : Op1.size());
-        (void)newTreeEntry(Op, TreeEntry::NeedToGather, std::nullopt,
-                           S, {TE, Idx});
+        (void)newTreeEntry(Op, TreeEntry::NeedToGather, std::nullopt, S,
+                           {TE, Idx});
       } else {
         TE->CombinedEntriesWithIndices.emplace_back(VectorizableTree.size(),
                                                     Idx == 0 ? 0 : Op1.size());

``````````

</details>


https://github.com/llvm/llvm-project/pull/128907