[llvm] [CodeGenPrepare] Fix infinite loop with same-type bitcasts (PR #176694)

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git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/CodeGen/CodeGenPrepare.cpp --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index cc40cd031..2b54a3b6f 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -1469,7 +1469,8 @@ static bool OptimizeNoopCopyExpression(CastInst *CI, const TargetLowering &TLI,
   }
 
   // If the cast is between identical types, just replace it with its operand.
-  // This avoids infinite loops with optimizePhiType which may reintroduce such casts.
+  // This avoids infinite loops with optimizePhiType which may reintroduce such
+  // casts.
   if (CI->getOperand(0)->getType() == CI->getType()) {
     CI->replaceAllUsesWith(CI->getOperand(0));
     CI->eraseFromParent();

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https://github.com/llvm/llvm-project/pull/176694