[llvm] [CSSPGO] Error out if the checksum mismatch is high (PR #84097)

[via llvm-commits]

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@@ -234,6 +234,24 @@ static cl::opt<unsigned> ProfileICPRelativeHotnessSkip(
     cl::desc(
         "Skip relative hotness check for ICP up to given number of targets."));
 
+static cl::opt<unsigned> ChecksumMismatchFuncHotBlockSkip(
+    "checksum-mismatch-func-hot-block-skip", cl::Hidden, cl::init(100),
+    cl::desc("For checksum-mismatch error check, skip checking the function "
+             "whose num of hot(on average) blocks is smaller than the "
+             "given number."));
+
+static cl::opt<unsigned> ChecksumMismatchNumFuncSkip(
+    "checksum-mismatch-num-func-skip", cl::Hidden, cl::init(50),
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WenleiHe wrote:

How about `min-functions-for-staleness-error`? 

https://github.com/llvm/llvm-project/pull/84097