[llvm] [ICP] Introduce a hot function cutoff threshold for ICP (PR #208060)

[Congzhe Cao via llvm-commits]

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@@ -160,6 +161,12 @@ static cl::list<std::string> ICPIgnoredBaseTypes(
         "binary could be different due to profiling limitations. Type info "
         "names are those string literals used in LLVM type metadata"));
 
+static cl::opt<int> HotFuncCutoffForICP(
+    "hot-func-cutoff-for-icp", cl::Hidden, cl::init(-1),
+    cl::desc("A count is hot for indirect call promotion if it exceeds "
+             "the minimum count to reach this percentile of total counts."
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CongzheUalberta wrote:

Thanks, I’ve updated the description here.

https://github.com/llvm/llvm-project/pull/208060