[llvm] [profcheck] Add heuristical profile metadata for lowering table-based cttz. (PR #161898)

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

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``````````diff
diff --git a/llvm/lib/Transforms/AggressiveInstCombine/AggressiveInstCombine.cpp b/llvm/lib/Transforms/AggressiveInstCombine/AggressiveInstCombine.cpp
index 227f359db..fa8903158 100644
--- a/llvm/lib/Transforms/AggressiveInstCombine/AggressiveInstCombine.cpp
+++ b/llvm/lib/Transforms/AggressiveInstCombine/AggressiveInstCombine.cpp
@@ -44,7 +44,7 @@ using namespace PatternMatch;
 #define DEBUG_TYPE "aggressive-instcombine"
 
 namespace llvm {
-  extern cl::opt<bool> ProfcheckDisableMetadataFixes;
+extern cl::opt<bool> ProfcheckDisableMetadataFixes;
 }
 
 STATISTIC(NumAnyOrAllBitsSet, "Number of any/all-bits-set patterns folded");

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https://github.com/llvm/llvm-project/pull/161898