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On Mon, Oct 11, 2010 at 11:10 PM, John McCall <rjmccall at apple.com> wrote: > On Oct 11, 2010, at 2:01 PM, Kenneth Uildriks wrote: >> A better way for a front-end to declare that vtbl-ptr-hacking is not >> expected and not supported is for it to emit llvm.invariant.start and >> llvm.invariant.end calls for it. > > Some of us were talking about this apropos your