[PATCH] D145209: [DAE] Don't change the return type if we have virtual musttail calls

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


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Comment at: llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp:526
+      // In addition, if the called function is virtual, we can't change
+      // the return type.
+      if (!TC->getCalledFunction())
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Please explain why this matters.  Intuitively, whether a function is virtual shouldn't affect liveness... do we handle the non-virtual case somewhere else?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145209/new/

https://reviews.llvm.org/D145209