[llvm] ConstraintElim: add dry-run routine to fail early (PR #99670)

[via llvm-commits]

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``````````bash
git-clang-format --diff c5ee3c05ca61f3fae11337c5853aee7b450a9dc6 da823b79459619e7ce88327fc2d9d5b76c3cffc7 --extensions cpp -- llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
index 331b972c97..334fb8e5d6 100644
--- a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
@@ -1721,7 +1721,8 @@ static void dryRunAddFact(CmpInst::Predicate Pred, Value *A, Value *B,
     }
 
     for (const auto &KV : concat<DecompEntry>(AVars, BVars)) {
-      if (KV.Variable == AStrip || KV.Variable == BStrip || !Value2Index.contains(KV.Variable))
+      if (KV.Variable == AStrip || KV.Variable == BStrip ||
+          !Value2Index.contains(KV.Variable))
         ++NumNewVars;
     }
 

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https://github.com/llvm/llvm-project/pull/99670