================
@@ -1131,12 +1120,6 @@ bool DevirtModule::tryFindVirtualCallTargets(
     if (Fn->getName() == "__cxa_pure_virtual")
       continue;
 
-    // In most cases empty functions will be overridden by the
-    // implementation of the derived class, so we can skip them.
-    if (DevirtSpeculatively && Fn->getReturnType()->isVoidTy() &&
----------------
KRM7 wrote:

We will probably want to have a proper cost model for speculative 
devirtualization later on though, and including a check like this there would 
probably be reasonable.

https://github.com/llvm/llvm-project/pull/233380
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