[llvm] [LV] Bail out if loop nest contains non-widenable types. (PR #226463)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
index 5813738e7..5a95d6aba 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
@@ -647,10 +647,9 @@ bool LoopVectorizationLegality::canVectorizeOuterLoop() {
           (!SI ||
            VectorType::isValidElementType(SI->getValueOperand()->getType())))
         continue;
-      reportVectorizationFailure("Found unvectorizable type",
-                                 "instruction type cannot be vectorized",
-                                 "CantVectorizeInstructionType", ORE, TheLoop,
-                                 &I);
+      reportVectorizationFailure(
+          "Found unvectorizable type", "instruction type cannot be vectorized",
+          "CantVectorizeInstructionType", ORE, TheLoop, &I);
       if (!DoExtraAnalysis)
         return false;
       Result = false;

``````````

</details>


https://github.com/llvm/llvm-project/pull/226463