[llvm] Add minimum count threshold for indirect call promotion (PR #145282)

[Teresa Johnson via llvm-commits]

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@@ -37,6 +37,12 @@ static cl::opt<unsigned>
                              cl::desc("The percentage threshold against total "
                                       "count for the promotion"));
 
+// Set the minimum absolute count threshold for indirect call promotion.
+// Candidates with counts below this threshold will not be promoted.
+static cl::opt<unsigned> ICPMinimumCountThreshold(
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teresajohnson wrote:

Should this be uint64_t to match the type of the Count it is being compared against?

https://github.com/llvm/llvm-project/pull/145282