[llvm] [SLP]Improve instruction reordering mode detection. (PR #97485)

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``````````bash
git-clang-format --diff 139508eb87bda18c8adbfb87bba6acac8ce29a36 42b649e45e0f653066114ef9d240a9a5da958f84 -- llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 1d92cc10bb..699add6a66 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -2267,8 +2267,7 @@ public:
             ReorderingModes[OpIdx] = ReorderingMode::Splat;
           else
             ReorderingModes[OpIdx] = ReorderingMode::Opcode;
-        }
-        else if (isa<Constant>(OpLane0))
+        } else if (isa<Constant>(OpLane0))
           ReorderingModes[OpIdx] = ReorderingMode::Constant;
         else if (isa<Argument>(OpLane0))
           // Our best hope is a Splat. It may save some cost in some cases.

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https://github.com/llvm/llvm-project/pull/97485