[llvm] [HWASAN] Follow up for #83503 implement selective instrumentation (PR #83942)

[Kirill Stoimenov via llvm-commits]

================
@@ -1527,6 +1533,9 @@ void HWAddressSanitizer::sanitizeFunction(Function &F,
 
   NumTotalFuncs++;
   if (CSkipHotCode) {
+    if ((F.getGUID() % MaxRandomRate) < SkipInstRandomRate) {
----------------
kstoimenov wrote:

@vitalybuka probably not correct logic. PTAL. 

https://github.com/llvm/llvm-project/pull/83942