<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5"><br>
</div></div>I see. Efficiency is certainly more important than purity. The reason<br>
I proposed that change is George's memory overhead concern -- the<br>
Users list currently has to be stored in the base class. The fixed<br>
cost per MemoryAccess using SmallPtrSet is 64 bytes.<br></blockquote><div><br></div><div><br></div><div>This is solvable by using User/Value here, and is likely the preferred solution over time.</div><div><br></div></div></div></div>