[llvm] [LV] Fix unsafe canVectorizeWithIfConvert() checks (PR #203273)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Analysis/LoopAccessAnalysis.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 69ca29885..8a6fe3b81 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
@@ -1475,10 +1475,8 @@ bool LoopVectorizationLegality::canVectorizeWithIfConvert() {
             // If operands from outside the loop may be poison then Ptr may also
             // be poison.
             if (!LoopPred ||
-                !isGuaranteedNotToBePoison(CurrV, AC,
-                                           LoopPred->getTerminator()
-                                               ->getIterator(),
-                                           DT))
+                !isGuaranteedNotToBePoison(
+                    CurrV, AC, LoopPred->getTerminator()->getIterator(), DT))
               return false;
             continue;
           }

``````````

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https://github.com/llvm/llvm-project/pull/203273