Hide clear logic into SanitizerMaskCutoffs

clang/include/clang/Basic/Sanitizers.h

@@ -160,7 +160,9 @@ class SanitizerMaskCutoffs {
 public:
   float &operator[](int index) { return cutoffs[index]; }
   const float &operator[](int index) const { return cutoffs[index]; }
-}; // SanitizerMaskCutoffs;
+
+  void clear(SanitizerMask K = SanitizerKind::All);
+};
 
 struct SanitizerSet {
   /// Check if a certain (single) sanitizer is enabled.

clang/lib/Basic/Sanitizers.cpp

@@ -19,6 +19,12 @@
 
 using namespace clang;
 
+void SanitizerMaskCutoffs::clear(SanitizerMask K) {
+  for (unsigned int i = 0; i < SanitizerKind::SO_Count; i++)
+    if (!(K & SanitizerMask::bitPosToMask(i)))
+      cutoffs[i] = 0;
+}
+
 // Once LLVM switches to C++17, the constexpr variables can be inline and we
 // won't need this.
 #define SANITIZER(NAME, ID) constexpr SanitizerMask SanitizerKind::ID;

clang/lib/Driver/SanitizerArgs.cpp

@@ -1152,9 +1152,7 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
   MergeHandlers.Mask |= MergeKinds;
 
   // Zero out TopHotCutoffs for unused sanitizers
-  for (unsigned int i = 0; i < SanitizerKind::SO_Count; i++)
-    if (!(Sanitizers.Mask & SanitizerMask::bitPosToMask(i)))
-      TopHotCutoffs[i] = 0;
+  TopHotCutoffs.clear(Sanitizers.Mask);
 }
 
 static std::string toString(const clang::SanitizerSet &Sanitizers) {