[LLVMdev] SDUse

Dan Gohman gohman at apple.com
Wed Feb 24 16:47:19 PST 2010

SDUse's Prev and Next members implement a use list. Copying them
probably wouldn't immediately break anything, but it wouldn't be


On Feb 24, 2010, at 3:08 PM, David Greene wrote:

> I just found a major bug in SelectionDAG.  Well, I found it several weeks ago
> and finally diagnosed it today.
> One possible fix comes down to holding SDUses about to be processed in
> a queue.  But this would require the SDUse copy constructor to be public.
> Why is it private and unimplemented right now?  What's the assumption
> that's trying to protect?
>                                       -Dave
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