[clang] [clang][Sema] Warn consecutive builtin comparisons in an expression (PR #92200)

[Aaron Ballman via cfe-commits]

================
@@ -14878,6 +14878,11 @@ ExprResult Sema::CreateBuiltinBinOp(SourceLocation 
OpLoc,
   case BO_GT:
     ConvertHalfVec = true;
     ResultTy = CheckCompareOperands(LHS, RHS, OpLoc, Opc);
+
+    if (const auto *BI = dyn_cast<BinaryOperator>(LHSExpr))
+      if (BI->isComparisonOp())
+        Diag(OpLoc, diag::warn_consecutive_comparison);
+
----------------
AaronBallman wrote:

```suggestion
    if (const auto *BI = dyn_cast<BinaryOperator>(LHSExpr); BI && 
BI->isComparisonOp())
      Diag(OpLoc, diag::warn_consecutive_comparison);

```

https://github.com/llvm/llvm-project/pull/92200
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