[llvm] [Passes] Run LoopSimplify before SLP (PR #209332)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Passes/PassBuilderPipelines.cpp --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/Passes/PassBuilderPipelines.cpp b/llvm/lib/Passes/PassBuilderPipelines.cpp
index 3ec1d6db5..008ab77f7 100644
--- a/llvm/lib/Passes/PassBuilderPipelines.cpp
+++ b/llvm/lib/Passes/PassBuilderPipelines.cpp
@@ -1449,7 +1449,8 @@ void PassBuilder::addVectorPasses(OptimizationLevel Level,
 
   // Optimize parallel scalar instruction chains into SIMD instructions.
   if (PTO.SLPVectorization) {
-    // Canonicalize loops before SLP so loop-aware modeling observes loop-simplify form.
+    // Canonicalize loops before SLP so loop-aware modeling observes
+    // loop-simplify form.
     FPM.addPass(LoopSimplifyPass());
     FPM.addPass(SLPVectorizerPass());
     if (Level.getSpeedupLevel() > 1 && ExtraVectorizerPasses) {

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https://github.com/llvm/llvm-project/pull/209332