[clang] [ubsan] Connect -fsanitize-skip-hot-cutoff to LowerAllowCheckPass<cutoffs> (PR #124857)

[Thurston Dang via cfe-commits]

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@@ -795,12 +795,29 @@ static void addSanitizers(const Triple &TargetTriple,
     PB.registerOptimizerLastEPCallback(SanitizersCallback);
   }
 
-  if (LowerAllowCheckPass::IsRequested()) {
+  bool lowerAllowCheck = LowerAllowCheckPass::IsRequested();
+  // Is there a non-zero cutoff?
+  static constexpr double SanitizerMaskCutoffsEps = 0.000000001f;
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thurstond wrote:

Removed

https://github.com/llvm/llvm-project/pull/124857