SuccessChanges

Summary

  1. [Attributor][NFC] Do not delete dead blocks but "clear" them (details)
Commit 5e442a51bce73f3e69eef022674acfb28224619d by johannes
[Attributor][NFC] Do not delete dead blocks but "clear" them
Deleting blocks will require us to deal with dead edges, e.g.,
`br i1 false, label %live, label %dead` explicitly. For now we just
clear the blocks and move on. This will be revisited once we actually
fold branches.
The file was modifiedllvm/lib/Transforms/IPO/Attributor.cpp
The file was modifiedllvm/test/Transforms/FunctionAttrs/liveness.ll