[llvm] [BOLT] Add support for safe-icf (PR #116275)

[Davide Italiano via llvm-commits]

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@@ -350,6 +422,9 @@ Error IdenticalCodeFolding::runOnFunctions(BinaryContext &BC) {
   std::atomic<uint64_t> NumFoldedLastIteration{0};
   CongruentBucketsMap CongruentBuckets;
 
+  auto SkipFuncShared = [&](const BinaryFunction &BF) {
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dcci wrote:

Or you can just modify `shouldOptimize()` to check `isSafeToICF()` if it's general enough

https://github.com/llvm/llvm-project/pull/116275