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...complication with Richard's example is that yet another object comes into existence. I don't see that as fundamentally changing anything. John. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130510/99568e57/attachment.html>

On 9 May 2013 19:13, John McCall <rjmccall at apple.com> wrote: > On May 9, 2013, at 6:34 PM, Nick Lewycky <nlewycky at google.com> wrote: > > I'm looking into how we can improve devirtualization in clang, and there > a language in C++ feature I'd like to take advantage of which would let us > perform elimination of more vptr loads. In this code: > > >