[llvm] [NFC][LV] Introduce enums for uncountable exit detail and style (PR #184808)

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git-clang-format --diff origin/main HEAD --extensions cpp,h -- llvm/include/llvm/Transforms/Vectorize/LoopVectorizationLegality.h llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp llvm/lib/Transforms/Vectorize/LoopVectorize.cpp llvm/lib/Transforms/Vectorize/VPlan.h llvm/lib/Transforms/Vectorize/VPlanConstruction.cpp llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp llvm/lib/Transforms/Vectorize/VPlanTransforms.h llvm/unittests/Transforms/Vectorize/VPlanTestBase.h llvm/unittests/Transforms/Vectorize/VPlanUncountableExitTest.cpp --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 9f3a080cf..3206ade7e 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -8200,8 +8200,8 @@ VPlanPtr LoopVectorizationPlanner::tryToBuildVPlanWithVPRecipes(
   // If we're vectorizing a loop with an uncountable exit, make sure that the
   // recipes are safe to handle.
   if (EEDetail == UncountableEarlyExitDetail::ReadOnly) {
-    ReversePostOrderTraversal<VPBlockShallowTraversalWrapper<VPBlockBase *>> RPOT(
-      Plan->getEntry());
+    ReversePostOrderTraversal<VPBlockShallowTraversalWrapper<VPBlockBase *>>
+        RPOT(Plan->getEntry());
     for (VPBasicBlock *VPBB : VPBlockUtils::blocksOnly<VPBasicBlock>(RPOT))
       for (VPRecipeBase &R : make_early_inc_range(*VPBB))
         if (auto *SDR = dyn_cast<VPSingleDefRecipe>(&R))

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https://github.com/llvm/llvm-project/pull/184808